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Diffstat (limited to '')
49 files changed, 4266 insertions, 0 deletions
diff --git a/gl/Makefile.am b/gl/Makefile.am new file mode 100644 index 000000000..be8e6a5b6 --- /dev/null +++ b/gl/Makefile.am @@ -0,0 +1,93 @@ +## Process this file with automake to produce Makefile.in. +# Copyright (C) 2004 Free Software Foundation, Inc. +# +# This file is free software, distributed under the terms of the GNU +# General Public License. As a special exception to the GNU General +# Public License, this file may be distributed as part of a program +# that contains a configuration script generated by Automake, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# Invoked as: gnulib-tool --import +# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --aux-dir=scripts alloca-opt allocsa mkdtemp setenv strpbrk strsep vasnprintf vasprintf xsize + +AUTOMAKE_OPTIONS = 1.5 gnits no-dependencies + +noinst_LIBRARIES = libgnu.a + +libgnu_a_SOURCES = +libgnu_a_LIBADD = @LIBOBJS@ +EXTRA_DIST = +BUILT_SOURCES = +SUFFIXES = +MOSTLYCLEANFILES = +CLEANFILES = +DISTCLEANFILES = +MAINTAINERCLEANFILES = + +## begin gnulib module alloca-opt + +BUILT_SOURCES += $(ALLOCA_H) +EXTRA_DIST += alloca_.h + +# We need the following in order to create an <alloca.h> when the system +# doesn't have one that works with the given compiler. +all-local $(libgnu_a_OBJECTS): $(ALLOCA_H) +alloca.h: alloca_.h + cp $(srcdir)/alloca_.h $@-t + mv $@-t $@ +MOSTLYCLEANFILES += alloca.h alloca.h-t + +## end gnulib module alloca-opt + +## begin gnulib module allocsa + +libgnu_a_SOURCES += allocsa.h allocsa.c +EXTRA_DIST += allocsa.valgrind + +## end gnulib module allocsa + +## begin gnulib module mkdtemp + +libgnu_a_SOURCES += mkdtemp.h + +## end gnulib module mkdtemp + +## begin gnulib module setenv + +libgnu_a_SOURCES += setenv.h + +## end gnulib module setenv + +## begin gnulib module strpbrk + +libgnu_a_SOURCES += strpbrk.h + +## end gnulib module strpbrk + +## begin gnulib module strsep + +libgnu_a_SOURCES += strsep.h + +## end gnulib module strsep + +## begin gnulib module vasnprintf + +libgnu_a_SOURCES += printf-args.h printf-parse.h vasnprintf.h + +## end gnulib module vasnprintf + +## begin gnulib module vasprintf + +libgnu_a_SOURCES += vasprintf.h + +## end gnulib module vasprintf + +## begin gnulib module xsize + +libgnu_a_SOURCES += xsize.h + +## end gnulib module xsize + + +# Makefile.am ends here diff --git a/gl/alloca_.h b/gl/alloca_.h new file mode 100644 index 000000000..3e3fdf43f --- /dev/null +++ b/gl/alloca_.h @@ -0,0 +1,52 @@ +/* Memory allocation on the stack. + + Copyright (C) 1995, 1999, 2001, 2002, 2003, 2004 Free Software + Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + USA. */ + +/* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H + means there is a real alloca function. */ +#ifndef _GNULIB_ALLOCA_H +# define _GNULIB_ALLOCA_H + +/* alloca (N) returns a pointer to N bytes of memory + allocated on the stack, which will last until the function returns. + Use of alloca should be avoided: + - inside arguments of function calls - undefined behaviour, + - in inline functions - the allocation may actually last until the + calling function returns, + - for huge N (say, N >= 65536) - you never know how large (or small) + the stack is, and when the stack cannot fulfill the memory allocation + request, the program just crashes. + */ + +#ifdef __GNUC__ +# define alloca __builtin_alloca +#elif defined _AIX +# define alloca __alloca +#elif defined _MSC_VER +# include <malloc.h> +# define alloca _alloca +#else +# include <stddef.h> +# ifdef __cplusplus +extern "C" +# endif +void *alloca (size_t); +#endif + +#endif /* _GNULIB_ALLOCA_H */ diff --git a/gl/allocsa.c b/gl/allocsa.c new file mode 100644 index 000000000..a54e2d0ca --- /dev/null +++ b/gl/allocsa.c @@ -0,0 +1,139 @@ +/* Safe automatic memory allocation. + Copyright (C) 2003 Free Software Foundation, Inc. + Written by Bruno Haible <[email protected]>, 2003. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#include "allocsa.h" + +/* The speed critical point in this file is freesa() applied to an alloca() + result: it must be fast, to match the speed of alloca(). The speed of + mallocsa() and freesa() in the other case are not critical, because they + are only invoked for big memory sizes. */ + +#if HAVE_ALLOCA + +/* Store the mallocsa() results in a hash table. This is needed to reliably + distinguish a mallocsa() result and an alloca() result. + + Although it is possible that the same pointer is returned by alloca() and + by mallocsa() at different times in the same application, it does not lead + to a bug in freesa(), because: + - Before a pointer returned by alloca() can point into malloc()ed memory, + the function must return, and once this has happened the programmer must + not call freesa() on it anyway. + - Before a pointer returned by mallocsa() can point into the stack, it + must be freed. The only function that can free it is freesa(), and + when freesa() frees it, it also removes it from the hash table. */ + +#define MAGIC_NUMBER 0x1415fb4a +#define MAGIC_SIZE sizeof (int) +/* This is how the header info would look like without any alignment + considerations. */ +struct preliminary_header { void *next; char room[MAGIC_SIZE]; }; +/* But the header's size must be a multiple of sa_alignment_max. */ +#define HEADER_SIZE \ + (((sizeof (struct preliminary_header) + sa_alignment_max - 1) / sa_alignment_max) * sa_alignment_max) +struct header { void *next; char room[HEADER_SIZE - sizeof (struct preliminary_header) + MAGIC_SIZE]; }; +/* Verify that HEADER_SIZE == sizeof (struct header). */ +typedef int verify1[2 * (HEADER_SIZE == sizeof (struct header)) - 1]; +/* We make the hash table quite big, so that during lookups the probability + of empty hash buckets is quite high. There is no need to make the hash + table resizable, because when the hash table gets filled so much that the + lookup becomes slow, it means that the application has memory leaks. */ +#define HASH_TABLE_SIZE 257 +static void * mallocsa_results[HASH_TABLE_SIZE]; + +#endif + +void * +mallocsa (size_t n) +{ +#if HAVE_ALLOCA + /* Allocate one more word, that serves as an indicator for malloc()ed + memory, so that freesa() of an alloca() result is fast. */ + size_t nplus = n + HEADER_SIZE; + + if (nplus >= n) + { + char *p = (char *) malloc (nplus); + + if (p != NULL) + { + size_t slot; + + p += HEADER_SIZE; + + /* Put a magic number into the indicator word. */ + ((int *) p)[-1] = MAGIC_NUMBER; + + /* Enter p into the hash table. */ + slot = (unsigned long) p % HASH_TABLE_SIZE; + ((struct header *) (p - HEADER_SIZE))->next = mallocsa_results[slot]; + mallocsa_results[slot] = p; + + return p; + } + } + /* Out of memory. */ + return NULL; +#else +# if !MALLOC_0_IS_NONNULL + if (n == 0) + n = 1; +# endif + return malloc (n); +#endif +} + +#if HAVE_ALLOCA +void +freesa (void *p) +{ + /* mallocsa() may have returned NULL. */ + if (p != NULL) + { + /* Attempt to quickly distinguish the mallocsa() result - which has + a magic indicator word - and the alloca() result - which has an + uninitialized indicator word. It is for this test that sa_increment + additional bytes are allocated in the alloca() case. */ + if (((int *) p)[-1] == MAGIC_NUMBER) + { + /* Looks like a mallocsa() result. To see whether it really is one, + perform a lookup in the hash table. */ + size_t slot = (unsigned long) p % HASH_TABLE_SIZE; + void **chain = &mallocsa_results[slot]; + for (; *chain != NULL;) + { + if (*chain == p) + { + /* Found it. Remove it from the hash table and free it. */ + char *p_begin = (char *) p - HEADER_SIZE; + *chain = ((struct header *) p_begin)->next; + free (p_begin); + return; + } + chain = &((struct header *) ((char *) *chain - HEADER_SIZE))->next; + } + } + /* At this point, we know it was not a mallocsa() result. */ + } +} +#endif diff --git a/gl/allocsa.h b/gl/allocsa.h new file mode 100644 index 000000000..cb6893ad1 --- /dev/null +++ b/gl/allocsa.h @@ -0,0 +1,113 @@ +/* Safe automatic memory allocation. + Copyright (C) 2003-2004 Free Software Foundation, Inc. + Written by Bruno Haible <[email protected]>, 2003. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _ALLOCSA_H +#define _ALLOCSA_H + +#include <alloca.h> +#include <stddef.h> +#include <stdlib.h> + +/* safe_alloca(N) is equivalent to alloca(N) when it is safe to call + alloca(N); otherwise it returns NULL. It either returns N bytes of + memory allocated on the stack, that lasts until the function returns, + or NULL. + Use of safe_alloca should be avoided: + - inside arguments of function calls - undefined behaviour, + - in inline functions - the allocation may actually last until the + calling function returns. +*/ +#if HAVE_ALLOCA +/* The OS usually guarantees only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + allocate anything larger than 4096 bytes. Also care for the possibility + of a few compiler-allocated temporary stack slots. + This must be a macro, not an inline function. */ +# define safe_alloca(N) ((N) < 4032 ? alloca (N) : NULL) +#else +# define safe_alloca(N) ((N), NULL) +#endif + +/* allocsa(N) is a safe variant of alloca(N). It allocates N bytes of + memory allocated on the stack, that must be freed using freesa() before + the function returns. Upon failure, it returns NULL. */ +#if HAVE_ALLOCA +# define allocsa(N) \ + ((N) < 4032 - sa_increment \ + ? (void *) ((char *) alloca ((N) + sa_increment) + sa_increment) \ + : mallocsa (N)) +#else +# define allocsa(N) \ + mallocsa (N) +#endif +extern void * mallocsa (size_t n); + +/* Free a block of memory allocated through allocsa(). */ +#if HAVE_ALLOCA +extern void freesa (void *p); +#else +# define freesa free +#endif + +/* Maybe we should also define a variant + nallocsa (size_t n, size_t s) - behaves like allocsa (n * s) + If this would be useful in your application. please speak up. */ + + +/* ------------------- Auxiliary, non-public definitions ------------------- */ + +/* Determine the alignment of a type at compile time. */ +#if defined __GNUC__ +# define sa_alignof __alignof__ +#elif defined __cplusplus + template <class type> struct sa_alignof_helper { char __slot1; type __slot2; }; +# define sa_alignof(type) offsetof (sa_alignof_helper<type>, __slot2) +#elif defined __hpux + /* Work around a HP-UX 10.20 cc bug with enums constants defined as offsetof + values. */ +# define sa_alignof(type) (sizeof (type) <= 4 ? 4 : 8) +#else +# define sa_alignof(type) offsetof (struct { char __slot1; type __slot2; }, __slot2) +#endif + +enum +{ +/* The desired alignment of memory allocations is the maximum alignment + among all elementary types. */ + sa_alignment_long = sa_alignof (long), + sa_alignment_double = sa_alignof (double), +#ifdef HAVE_LONG_LONG + sa_alignment_longlong = sa_alignof (long long), +#endif +#ifdef HAVE_LONG_DOUBLE + sa_alignment_longdouble = sa_alignof (long double), +#endif + sa_alignment_max = ((sa_alignment_long - 1) | (sa_alignment_double - 1) +#ifdef HAVE_LONG_LONG + | (sa_alignment_longlong - 1) +#endif +#ifdef HAVE_LONG_DOUBLE + | (sa_alignment_longdouble - 1) +#endif + ) + 1, +/* The increment that guarantees room for a magic word must be >= sizeof (int) + and a multiple of sa_alignment_max. */ + sa_increment = ((sizeof (int) + sa_alignment_max - 1) / sa_alignment_max) * sa_alignment_max +}; + +#endif /* _ALLOCSA_H */ diff --git a/gl/allocsa.valgrind b/gl/allocsa.valgrind new file mode 100644 index 000000000..f4c77d686 --- /dev/null +++ b/gl/allocsa.valgrind @@ -0,0 +1,7 @@ +# Suppress a valgrind message about use of uninitialized memory in freesa(). +# This use is OK because it provides only a speedup. +{ + freesa + Memcheck:Cond + fun:freesa +} diff --git a/gl/asnprintf.c b/gl/asnprintf.c new file mode 100644 index 000000000..1b7f4ba39 --- /dev/null +++ b/gl/asnprintf.c @@ -0,0 +1,37 @@ +/* Formatted output to strings. + Copyright (C) 1999, 2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#include "vasnprintf.h" + +#include <stdarg.h> + +char * +asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) +{ + va_list args; + char *result; + + va_start (args, format); + result = vasnprintf (resultbuf, lengthp, format, args); + va_end (args); + return result; +} diff --git a/gl/asprintf.c b/gl/asprintf.c new file mode 100644 index 000000000..7c4e64a24 --- /dev/null +++ b/gl/asprintf.c @@ -0,0 +1,37 @@ +/* Formatted output to strings. + Copyright (C) 1999, 2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#include "vasprintf.h" + +#include <stdarg.h> + +int +asprintf (char **resultp, const char *format, ...) +{ + va_list args; + int result; + + va_start (args, format); + result = vasprintf (resultp, format, args); + va_end (args); + return result; +} diff --git a/gl/m4/alloca.m4 b/gl/m4/alloca.m4 new file mode 100644 index 000000000..a9e3f452c --- /dev/null +++ b/gl/m4/alloca.m4 @@ -0,0 +1,42 @@ +# alloca.m4 serial 5 +dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_ALLOCA], +[ + dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57. + AC_REQUIRE([AC_PROG_CPP]) + AC_REQUIRE([AC_PROG_EGREP]) + + AC_REQUIRE([AC_FUNC_ALLOCA]) + if test $ac_cv_func_alloca_works = no; then + gl_PREREQ_ALLOCA + fi + + # Define an additional variable used in the Makefile substitution. + if test $ac_cv_working_alloca_h = yes; then + AC_EGREP_CPP([Need own alloca], [ +#if defined __GNUC__ || defined _AIX || defined _MSC_VER + Need own alloca +#endif + ], + [AC_DEFINE(HAVE_ALLOCA, 1, + [Define to 1 if you have `alloca' after including <alloca.h>, + a header that may be supplied by this distribution.]) + ALLOCA_H=alloca.h], + [ALLOCA_H=]) + else + ALLOCA_H=alloca.h + fi + AC_SUBST([ALLOCA_H]) + + AC_DEFINE(HAVE_ALLOCA_H, 1, + [Define HAVE_ALLOCA_H for backward compatibility with older code + that includes <alloca.h> only if HAVE_ALLOCA_H is defined.]) +]) + +# Prerequisites of lib/alloca.c. +# STACK_DIRECTION is already handled by AC_FUNC_ALLOCA. +AC_DEFUN([gl_PREREQ_ALLOCA], [:]) diff --git a/gl/m4/allocsa.m4 b/gl/m4/allocsa.m4 new file mode 100644 index 000000000..474862fe3 --- /dev/null +++ b/gl/m4/allocsa.m4 @@ -0,0 +1,15 @@ +# allocsa.m4 serial 3 +dnl Copyright (C) 2003-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_ALLOCSA], +[ + dnl Use the autoconf tests for alloca(), but not the AC_SUBSTed variables + dnl @ALLOCA@ and @LTALLOCA@. + AC_REQUIRE([gl_FUNC_ALLOCA]) + AC_REQUIRE([gl_EEMALLOC]) + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + AC_REQUIRE([gt_TYPE_LONGDOUBLE]) +]) diff --git a/gl/m4/eealloc.m4 b/gl/m4/eealloc.m4 new file mode 100644 index 000000000..adcfd06c9 --- /dev/null +++ b/gl/m4/eealloc.m4 @@ -0,0 +1,32 @@ +# eealloc.m4 serial 1 +dnl Copyright (C) 2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_EEALLOC], +[ + AC_REQUIRE([gl_EEMALLOC]) + AC_REQUIRE([gl_EEREALLOC]) + AC_REQUIRE([AC_C_INLINE]) +]) + +AC_DEFUN([gl_EEMALLOC], +[ + _AC_FUNC_MALLOC_IF( + [gl_cv_func_malloc_0_nonnull=1], + [gl_cv_func_malloc_0_nonnull=0]) + AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], $gl_cv_func_malloc_0_nonnull, + [If malloc(0) is != NULL, define this to 1. Otherwise define this + to 0.]) +]) + +AC_DEFUN([gl_EEREALLOC], +[ + _AC_FUNC_REALLOC_IF( + [gl_cv_func_realloc_0_nonnull=1], + [gl_cv_func_realloc_0_nonnull=0]) + AC_DEFINE_UNQUOTED([REALLOC_0_IS_NONNULL], $gl_cv_func_realloc_0_nonnull, + [If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this + to 0.]) +]) diff --git a/gl/m4/eoverflow.m4 b/gl/m4/eoverflow.m4 new file mode 100644 index 000000000..8c28ca305 --- /dev/null +++ b/gl/m4/eoverflow.m4 @@ -0,0 +1,64 @@ +# eoverflow.m4 serial 1 +dnl Copyright (C) 2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +# The EOVERFLOW errno value ought to be defined in <errno.h>, according to +# POSIX. But some systems (like AIX 3) don't define it, and some systems +# (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. + +# Define EOVERFLOW as a C macro and as a substituted macro in such a way that +# 1. on all systems, after inclusion of <errno.h>, EOVERFLOW is usable, +# 2. on systems where EOVERFLOW is defined elsewhere, we use the same numeric +# value. + +AC_DEFUN([gl_EOVERFLOW], +[ + AC_REQUIRE([AC_PROG_CC])dnl + + AC_CACHE_CHECK([for EOVERFLOW], ac_cv_decl_EOVERFLOW, [ + AC_EGREP_CPP(yes,[ +#include <errno.h> +#ifdef EOVERFLOW +yes +#endif + ], have_eoverflow=1) + if test -n "$have_eoverflow"; then + dnl EOVERFLOW exists in <errno.h>. Don't need to define EOVERFLOW ourselves. + ac_cv_decl_EOVERFLOW=yes + else + AC_EGREP_CPP(yes,[ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +#ifdef EOVERFLOW +yes +#endif + ], have_eoverflow=1) + if test -n "$have_eoverflow"; then + dnl EOVERFLOW exists but is hidden. + dnl Define it to the same value. + _AC_COMPUTE_INT([EOVERFLOW], ac_cv_decl_EOVERFLOW, [ +#define _XOPEN_SOURCE_EXTENDED 1 +#include <errno.h> +/* The following two lines are a workaround against an autoconf-2.52 bug. */ +#include <stdio.h> +#include <stdlib.h> +]) + else + dnl EOVERFLOW isn't defined by the system. Define EOVERFLOW ourselves, but + dnl don't define it as EINVAL, because snprintf() callers want to + dnl distinguish EINVAL and EOVERFLOW. + ac_cv_decl_EOVERFLOW=E2BIG + fi + fi + ]) + if test "$ac_cv_decl_EOVERFLOW" != yes; then + AC_DEFINE_UNQUOTED([EOVERFLOW], [$ac_cv_decl_EOVERFLOW], + [Define as good substitute value for EOVERFLOW.]) + EOVERFLOW="$ac_cv_decl_EOVERFLOW" + AC_SUBST(EOVERFLOW) + fi +]) diff --git a/gl/m4/gnulib.m4 b/gl/m4/gnulib.m4 new file mode 100644 index 000000000..46d5e338b --- /dev/null +++ b/gl/m4/gnulib.m4 @@ -0,0 +1,46 @@ +# Copyright (C) 2004 Free Software Foundation, Inc. +# This file is free software, distributed under the terms of the GNU +# General Public License. As a special exception to the GNU General +# Public License, this file may be distributed as part of a program +# that contains a configuration script generated by Autoconf, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# +# Invoked as: gnulib-tool --import +# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --aux-dir=scripts alloca-opt allocsa mkdtemp setenv strpbrk strsep vasnprintf vasprintf xsize + +AC_DEFUN([gl_EARLY], +[ + AC_GNU_SOURCE +]) + +AC_DEFUN([gl_INIT], +[ + gl_FUNC_ALLOCA + gl_ALLOCSA + gt_FUNC_MKDTEMP + gt_FUNC_SETENV + gl_FUNC_STRPBRK + gl_FUNC_STRSEP + gl_FUNC_VASNPRINTF + gl_FUNC_VASPRINTF + gl_XSIZE +]) + +dnl Usage: gl_MODULES(module1 module2 ...) +AC_DEFUN([gl_MODULES], []) + +dnl Usage: gl_SOURCE_BASE(DIR) +AC_DEFUN([gl_SOURCE_BASE], []) + +dnl Usage: gl_M4_BASE(DIR) +AC_DEFUN([gl_M4_BASE], []) + +dnl Usage: gl_LIB(LIBNAME) +AC_DEFUN([gl_LIB], []) + +dnl Usage: gl_LGPL +AC_DEFUN([gl_LGPL], []) + +# gnulib.m4 ends here diff --git a/gl/m4/intmax_t.m4 b/gl/m4/intmax_t.m4 new file mode 100644 index 000000000..44b16523c --- /dev/null +++ b/gl/m4/intmax_t.m4 @@ -0,0 +1,61 @@ +# intmax_t.m4 serial 4 +dnl Copyright (C) 1997-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_PREREQ(2.13) + +# Define intmax_t to 'long' or 'long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_INTMAX_T], +[ + dnl For simplicity, we assume that a header file defines 'intmax_t' if and + dnl only if it defines 'uintmax_t'. + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + test $ac_cv_type_long_long = yes \ + && ac_type='long long' \ + || ac_type='long' + AC_DEFINE_UNQUOTED(intmax_t, $ac_type, + [Define to long or long long if <inttypes.h> and <stdint.h> don't define.]) + else + AC_DEFINE(HAVE_INTMAX_T, 1, + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) + +dnl An alternative would be to explicitly test for 'intmax_t'. + +AC_DEFUN([gt_AC_TYPE_INTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + AC_CACHE_CHECK(for intmax_t, gt_cv_c_intmax_t, + [AC_TRY_COMPILE([ +#include <stddef.h> +#include <stdlib.h> +#if HAVE_STDINT_H_WITH_UINTMAX +#include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +#include <inttypes.h> +#endif +], [intmax_t x = -1;], gt_cv_c_intmax_t=yes, gt_cv_c_intmax_t=no)]) + if test $gt_cv_c_intmax_t = yes; then + AC_DEFINE(HAVE_INTMAX_T, 1, + [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.]) + else + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + test $ac_cv_type_long_long = yes \ + && ac_type='long long' \ + || ac_type='long' + AC_DEFINE_UNQUOTED(intmax_t, $ac_type, + [Define to long or long long if <stdint.h> and <inttypes.h> don't define.]) + fi +]) diff --git a/gl/m4/inttypes_h.m4 b/gl/m4/inttypes_h.m4 new file mode 100644 index 000000000..a5d075d96 --- /dev/null +++ b/gl/m4/inttypes_h.m4 @@ -0,0 +1,26 @@ +# inttypes_h.m4 serial 6 +dnl Copyright (C) 1997-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_INTTYPES_H], +[ + AC_CACHE_CHECK([for inttypes.h], gl_cv_header_inttypes_h, + [AC_TRY_COMPILE( + [#include <sys/types.h> +#include <inttypes.h>], + [uintmax_t i = (uintmax_t) -1;], + gl_cv_header_inttypes_h=yes, + gl_cv_header_inttypes_h=no)]) + if test $gl_cv_header_inttypes_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1, + [Define if <inttypes.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/longdouble.m4 b/gl/m4/longdouble.m4 new file mode 100644 index 000000000..40cd7ce02 --- /dev/null +++ b/gl/m4/longdouble.m4 @@ -0,0 +1,28 @@ +# longdouble.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether the compiler supports the 'long double' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_LONGDOUBLE], +[ + AC_CACHE_CHECK([for long double], gt_cv_c_long_double, + [if test "$GCC" = yes; then + gt_cv_c_long_double=yes + else + AC_TRY_COMPILE([ + /* The Stardent Vistra knows sizeof(long double), but does not support it. */ + long double foo = 0.0; + /* On Ultrix 4.3 cc, long double is 4 and double is 8. */ + int array [2*(sizeof(long double) >= sizeof(double)) - 1]; + ], , + gt_cv_c_long_double=yes, gt_cv_c_long_double=no) + fi]) + if test $gt_cv_c_long_double = yes; then + AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the 'long double' type.]) + fi +]) diff --git a/gl/m4/longlong.m4 b/gl/m4/longlong.m4 new file mode 100644 index 000000000..7b399e012 --- /dev/null +++ b/gl/m4/longlong.m4 @@ -0,0 +1,23 @@ +# longlong.m4 serial 5 +dnl Copyright (C) 1999-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_LONG_LONG if 'long long' works. + +AC_DEFUN([gl_AC_TYPE_LONG_LONG], +[ + AC_CACHE_CHECK([for long long], ac_cv_type_long_long, + [AC_TRY_LINK([long long ll = 1LL; int i = 63;], + [long long llmax = (long long) -1; + return ll << i | ll >> i | llmax / ll | llmax % ll;], + ac_cv_type_long_long=yes, + ac_cv_type_long_long=no)]) + if test $ac_cv_type_long_long = yes; then + AC_DEFINE(HAVE_LONG_LONG, 1, + [Define if you have the 'long long' type.]) + fi +]) diff --git a/gl/m4/mkdtemp.m4 b/gl/m4/mkdtemp.m4 new file mode 100644 index 000000000..e02c8256c --- /dev/null +++ b/gl/m4/mkdtemp.m4 @@ -0,0 +1,23 @@ +# mkdtemp.m4 serial 3 +dnl Copyright (C) 2001-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gt_FUNC_MKDTEMP], +[ + AC_REPLACE_FUNCS(mkdtemp) + if test $ac_cv_func_mkdtemp = no; then + gl_PREREQ_MKDTEMP + fi +]) + +# Prerequisites of lib/mkdtemp.c +AC_DEFUN([gl_PREREQ_MKDTEMP], +[ + AC_REQUIRE([AC_HEADER_STAT]) + AC_CHECK_HEADERS_ONCE(sys/time.h unistd.h) + AC_CHECK_HEADERS(time.h) + AC_REQUIRE([gl_AC_TYPE_UINTMAX_T]) + AC_CHECK_FUNCS(gettimeofday) +]) diff --git a/gl/m4/onceonly_2_57.m4 b/gl/m4/onceonly_2_57.m4 new file mode 100644 index 000000000..9fc510e06 --- /dev/null +++ b/gl/m4/onceonly_2_57.m4 @@ -0,0 +1,86 @@ +# onceonly_2_57.m4 serial 3 +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl This file defines some "once only" variants of standard autoconf macros. +dnl AC_CHECK_HEADERS_ONCE like AC_CHECK_HEADERS +dnl AC_CHECK_FUNCS_ONCE like AC_CHECK_FUNCS +dnl AC_CHECK_DECLS_ONCE like AC_CHECK_DECLS +dnl AC_REQUIRE([AC_HEADER_STDC]) like AC_HEADER_STDC +dnl The advantage is that the check for each of the headers/functions/decls +dnl will be put only once into the 'configure' file. It keeps the size of +dnl the 'configure' file down, and avoids redundant output when 'configure' +dnl is run. +dnl The drawback is that the checks cannot be conditionalized. If you write +dnl if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi +dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to +dnl empty, and the check will be inserted before the body of the AC_DEFUNed +dnl function. + +dnl This is like onceonly.m4, except that it uses diversions to named sections +dnl DEFAULTS and INIT_PREPARE in order to check all requested headers at once, +dnl thus reducing the size of 'configure'. Works with autoconf-2.57. The +dnl size reduction is ca. 9%. + +dnl Autoconf version 2.57 or newer is recommended. +AC_PREREQ(2.54) + +# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of +# AC_CHECK_HEADERS(HEADER1 HEADER2 ...). +AC_DEFUN([AC_CHECK_HEADERS_ONCE], [ + : + AC_FOREACH([gl_HEADER_NAME], [$1], [ + AC_DEFUN([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME, + [./-], [___])), [ + m4_divert_text([INIT_PREPARE], + [gl_header_list="$gl_header_list gl_HEADER_NAME"]) + gl_HEADERS_EXPANSION + AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_HEADER_NAME])), + [Define to 1 if you have the <]m4_defn([gl_HEADER_NAME])[> header file.]) + ]) + AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME, + [./-], [___]))) + ]) +]) +m4_define([gl_HEADERS_EXPANSION], [ + m4_divert_text([DEFAULTS], [gl_header_list=]) + AC_CHECK_HEADERS([$gl_header_list]) + m4_define([gl_HEADERS_EXPANSION], []) +]) + +# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of +# AC_CHECK_FUNCS(FUNC1 FUNC2 ...). +AC_DEFUN([AC_CHECK_FUNCS_ONCE], [ + : + AC_FOREACH([gl_FUNC_NAME], [$1], [ + AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [ + m4_divert_text([INIT_PREPARE], + [gl_func_list="$gl_func_list gl_FUNC_NAME"]) + gl_FUNCS_EXPANSION + AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_FUNC_NAME])), + [Define to 1 if you have the `]m4_defn([gl_FUNC_NAME])[' function.]) + ]) + AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME])) + ]) +]) +m4_define([gl_FUNCS_EXPANSION], [ + m4_divert_text([DEFAULTS], [gl_func_list=]) + AC_CHECK_FUNCS([$gl_func_list]) + m4_define([gl_FUNCS_EXPANSION], []) +]) + +# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of +# AC_CHECK_DECLS(DECL1, DECL2, ...). +AC_DEFUN([AC_CHECK_DECLS_ONCE], [ + : + AC_FOREACH([gl_DECL_NAME], [$1], [ + AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [ + AC_CHECK_DECLS(m4_defn([gl_DECL_NAME])) + ]) + AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME])) + ]) +]) diff --git a/gl/m4/setenv.m4 b/gl/m4/setenv.m4 new file mode 100644 index 000000000..4c76be1ff --- /dev/null +++ b/gl/m4/setenv.m4 @@ -0,0 +1,70 @@ +# setenv.m4 serial 5 +dnl Copyright (C) 2001-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gt_FUNC_SETENV], +[ + AC_REPLACE_FUNCS(setenv unsetenv) + if test $ac_cv_func_setenv = no; then + gl_PREREQ_SETENV + fi + if test $ac_cv_func_unsetenv = no; then + gl_PREREQ_UNSETENV + else + AC_CACHE_CHECK([for unsetenv() return type], gt_cv_func_unsetenv_ret, + [AC_TRY_COMPILE([#include <stdlib.h> +extern +#ifdef __cplusplus +"C" +#endif +#if defined(__STDC__) || defined(__cplusplus) +int unsetenv (const char *name); +#else +int unsetenv(); +#endif +], , gt_cv_func_unsetenv_ret='int', gt_cv_func_unsetenv_ret='void')]) + if test $gt_cv_func_unsetenv_ret = 'void'; then + AC_DEFINE(VOID_UNSETENV, 1, [Define if unsetenv() returns void, not int.]) + fi + fi +]) + +# Check if a variable is properly declared. +# gt_CHECK_VAR_DECL(includes,variable) +AC_DEFUN([gt_CHECK_VAR_DECL], +[ + define([gt_cv_var], [gt_cv_var_]$2[_declaration]) + AC_MSG_CHECKING([if $2 is properly declared]) + AC_CACHE_VAL(gt_cv_var, [ + AC_TRY_COMPILE([$1 + extern struct { int foo; } $2;], + [$2.foo = 1;], + gt_cv_var=no, + gt_cv_var=yes)]) + AC_MSG_RESULT($gt_cv_var) + if test $gt_cv_var = yes; then + AC_DEFINE([HAVE_]translit($2, [a-z], [A-Z])[_DECL], 1, + [Define if you have the declaration of $2.]) + fi +]) + +# Prerequisites of lib/setenv.c. +AC_DEFUN([gl_PREREQ_SETENV], +[ + AC_REQUIRE([AC_FUNC_ALLOCA]) + AC_CHECK_HEADERS_ONCE(unistd.h) + AC_CHECK_HEADERS(search.h) + AC_CHECK_FUNCS(tsearch) + gt_CHECK_VAR_DECL([#include <errno.h>], errno) + gt_CHECK_VAR_DECL([#include <unistd.h>], environ) +]) + +# Prerequisites of lib/unsetenv.c. +AC_DEFUN([gl_PREREQ_UNSETENV], +[ + AC_CHECK_HEADERS_ONCE(unistd.h) + gt_CHECK_VAR_DECL([#include <errno.h>], errno) + gt_CHECK_VAR_DECL([#include <unistd.h>], environ) +]) diff --git a/gl/m4/signed.m4 b/gl/m4/signed.m4 new file mode 100644 index 000000000..048f59369 --- /dev/null +++ b/gl/m4/signed.m4 @@ -0,0 +1,17 @@ +# signed.m4 serial 1 (gettext-0.10.40) +dnl Copyright (C) 2001-2002 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([bh_C_SIGNED], +[ + AC_CACHE_CHECK([for signed], bh_cv_c_signed, + [AC_TRY_COMPILE(, [signed char x;], bh_cv_c_signed=yes, bh_cv_c_signed=no)]) + if test $bh_cv_c_signed = no; then + AC_DEFINE(signed, , + [Define to empty if the C compiler doesn't support this keyword.]) + fi +]) diff --git a/gl/m4/size_max.m4 b/gl/m4/size_max.m4 new file mode 100644 index 000000000..4fe81c7b0 --- /dev/null +++ b/gl/m4/size_max.m4 @@ -0,0 +1,59 @@ +# size_max.m4 serial 2 +dnl Copyright (C) 2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. + +AC_DEFUN([gl_SIZE_MAX], +[ + AC_CHECK_HEADERS(stdint.h) + dnl First test whether the system already has SIZE_MAX. + AC_MSG_CHECKING([for SIZE_MAX]) + result= + AC_EGREP_CPP([Found it], [ +#include <limits.h> +#if HAVE_STDINT_H +#include <stdint.h> +#endif +#ifdef SIZE_MAX +Found it +#endif +], result=yes) + if test -z "$result"; then + dnl Define it ourselves. Here we assume that the type 'size_t' is not wider + dnl than the type 'unsigned long'. + dnl The _AC_COMPUTE_INT macro works up to LONG_MAX, since it uses 'expr', + dnl which is guaranteed to work from LONG_MIN to LONG_MAX. + _AC_COMPUTE_INT([~(size_t)0 / 10], res_hi, + [#include <stddef.h>], result=?) + _AC_COMPUTE_INT([~(size_t)0 % 10], res_lo, + [#include <stddef.h>], result=?) + _AC_COMPUTE_INT([sizeof (size_t) <= sizeof (unsigned int)], fits_in_uint, + [#include <stddef.h>], result=?) + if test "$fits_in_uint" = 1; then + dnl Even though SIZE_MAX fits in an unsigned int, it must be of type + dnl 'unsigned long' if the type 'size_t' is the same as 'unsigned long'. + AC_TRY_COMPILE([#include <stddef.h> + extern size_t foo; + extern unsigned long foo; + ], [], fits_in_uint=0) + fi + if test -z "$result"; then + if test "$fits_in_uint" = 1; then + result="$res_hi$res_lo"U + else + result="$res_hi$res_lo"UL + fi + else + dnl Shouldn't happen, but who knows... + result='~(size_t)0' + fi + fi + AC_MSG_RESULT([$result]) + if test "$result" != yes; then + AC_DEFINE_UNQUOTED([SIZE_MAX], [$result], + [Define as the maximum value of type 'size_t', if the system doesn't define it.]) + fi +]) diff --git a/gl/m4/stdint_h.m4 b/gl/m4/stdint_h.m4 new file mode 100644 index 000000000..3355f35aa --- /dev/null +++ b/gl/m4/stdint_h.m4 @@ -0,0 +1,26 @@ +# stdint_h.m4 serial 5 +dnl Copyright (C) 1997-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists, +# doesn't clash with <sys/types.h>, and declares uintmax_t. + +AC_DEFUN([gl_AC_HEADER_STDINT_H], +[ + AC_CACHE_CHECK([for stdint.h], gl_cv_header_stdint_h, + [AC_TRY_COMPILE( + [#include <sys/types.h> +#include <stdint.h>], + [uintmax_t i = (uintmax_t) -1;], + gl_cv_header_stdint_h=yes, + gl_cv_header_stdint_h=no)]) + if test $gl_cv_header_stdint_h = yes; then + AC_DEFINE_UNQUOTED(HAVE_STDINT_H_WITH_UINTMAX, 1, + [Define if <stdint.h> exists, doesn't clash with <sys/types.h>, + and declares uintmax_t. ]) + fi +]) diff --git a/gl/m4/strpbrk.m4 b/gl/m4/strpbrk.m4 new file mode 100644 index 000000000..68360684e --- /dev/null +++ b/gl/m4/strpbrk.m4 @@ -0,0 +1,16 @@ +# strpbrk.m4 serial 2 +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRPBRK], +[ + AC_REPLACE_FUNCS(strpbrk) + if test $ac_cv_func_strpbrk = no; then + gl_PREREQ_STRPBRK + fi +]) + +# Prerequisites of lib/strpbrk.c. +AC_DEFUN([gl_PREREQ_STRPBRK], [:]) diff --git a/gl/m4/strsep.m4 b/gl/m4/strsep.m4 new file mode 100644 index 000000000..40a087b3d --- /dev/null +++ b/gl/m4/strsep.m4 @@ -0,0 +1,17 @@ +# strsep.m4 serial 3 +dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STRSEP], +[ + dnl Persuade glibc <string.h> to declare strsep(). + AC_REQUIRE([AC_GNU_SOURCE]) + + AC_REPLACE_FUNCS(strsep) + gl_PREREQ_STRSEP +]) + +# Prerequisites of lib/strsep.c. +AC_DEFUN([gl_PREREQ_STRSEP], [:]) diff --git a/gl/m4/uintmax_t.m4 b/gl/m4/uintmax_t.m4 new file mode 100644 index 000000000..bf83ed746 --- /dev/null +++ b/gl/m4/uintmax_t.m4 @@ -0,0 +1,30 @@ +# uintmax_t.m4 serial 9 +dnl Copyright (C) 1997-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +AC_PREREQ(2.13) + +# Define uintmax_t to 'unsigned long' or 'unsigned long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_UINTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_REQUIRE([gl_AC_TYPE_UNSIGNED_LONG_LONG]) + test $ac_cv_type_unsigned_long_long = yes \ + && ac_type='unsigned long long' \ + || ac_type='unsigned long' + AC_DEFINE_UNQUOTED(uintmax_t, $ac_type, + [Define to unsigned long or unsigned long long + if <stdint.h> and <inttypes.h> don't define.]) + else + AC_DEFINE(HAVE_UINTMAX_T, 1, + [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) diff --git a/gl/m4/ulonglong.m4 b/gl/m4/ulonglong.m4 new file mode 100644 index 000000000..dee10ccc3 --- /dev/null +++ b/gl/m4/ulonglong.m4 @@ -0,0 +1,23 @@ +# ulonglong.m4 serial 4 +dnl Copyright (C) 1999-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Paul Eggert. + +# Define HAVE_UNSIGNED_LONG_LONG if 'unsigned long long' works. + +AC_DEFUN([gl_AC_TYPE_UNSIGNED_LONG_LONG], +[ + AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long, + [AC_TRY_LINK([unsigned long long ull = 1ULL; int i = 63;], + [unsigned long long ullmax = (unsigned long long) -1; + return ull << i | ull >> i | ullmax / ull | ullmax % ull;], + ac_cv_type_unsigned_long_long=yes, + ac_cv_type_unsigned_long_long=no)]) + if test $ac_cv_type_unsigned_long_long = yes; then + AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1, + [Define if you have the 'unsigned long long' type.]) + fi +]) diff --git a/gl/m4/vasnprintf.m4 b/gl/m4/vasnprintf.m4 new file mode 100644 index 000000000..7ff343035 --- /dev/null +++ b/gl/m4/vasnprintf.m4 @@ -0,0 +1,58 @@ +# vasnprintf.m4 serial 5 +dnl Copyright (C) 2002-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_VASNPRINTF], +[ + AC_REQUIRE([gl_EOVERFLOW]) + AC_REPLACE_FUNCS(vasnprintf) + if test $ac_cv_func_vasnprintf = no; then + AC_LIBOBJ(printf-args) + AC_LIBOBJ(printf-parse) + AC_LIBOBJ(asnprintf) + gl_PREREQ_PRINTF_ARGS + gl_PREREQ_PRINTF_PARSE + gl_PREREQ_VASNPRINTF + gl_PREREQ_ASNPRINTF + fi +]) + +# Prequisites of lib/printf-args.h, lib/printf-args.c. +AC_DEFUN([gl_PREREQ_PRINTF_ARGS], +[ + AC_REQUIRE([bh_C_SIGNED]) + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + AC_REQUIRE([gt_TYPE_LONGDOUBLE]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) +]) + +# Prequisites of lib/printf-parse.h, lib/printf-parse.c. +AC_DEFUN([gl_PREREQ_PRINTF_PARSE], +[ + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + AC_REQUIRE([gt_TYPE_LONGDOUBLE]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_REQUIRE([AC_TYPE_SIZE_T]) + AC_CHECK_TYPES(ptrdiff_t) + AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) +]) + +# Prerequisites of lib/vasnprintf.c. +AC_DEFUN([gl_PREREQ_VASNPRINTF], +[ + AC_REQUIRE([AC_FUNC_ALLOCA]) + AC_REQUIRE([gl_AC_TYPE_LONG_LONG]) + AC_REQUIRE([gt_TYPE_LONGDOUBLE]) + AC_REQUIRE([gt_TYPE_WCHAR_T]) + AC_REQUIRE([gt_TYPE_WINT_T]) + AC_CHECK_FUNCS(snprintf wcslen) +]) + +# Prerequisites of lib/asnprintf.c. +AC_DEFUN([gl_PREREQ_ASNPRINTF], +[ +]) diff --git a/gl/m4/vasprintf.m4 b/gl/m4/vasprintf.m4 new file mode 100644 index 000000000..385e92edd --- /dev/null +++ b/gl/m4/vasprintf.m4 @@ -0,0 +1,25 @@ +# vasprintf.m4 serial 1 +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_VASPRINTF], +[ + AC_REPLACE_FUNCS(vasprintf) + if test $ac_cv_func_vasprintf = no; then + AC_LIBOBJ(asprintf) + gl_PREREQ_VASPRINTF + gl_PREREQ_ASPRINTF + fi +]) + +# Prerequisites of lib/vasprintf.c. +AC_DEFUN([gl_PREREQ_VASPRINTF], +[ +]) + +# Prerequisites of lib/asprintf.c. +AC_DEFUN([gl_PREREQ_ASPRINTF], +[ +]) diff --git a/gl/m4/wchar_t.m4 b/gl/m4/wchar_t.m4 new file mode 100644 index 000000000..cde2129a9 --- /dev/null +++ b/gl/m4/wchar_t.m4 @@ -0,0 +1,20 @@ +# wchar_t.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <stddef.h> has the 'wchar_t' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WCHAR_T], +[ + AC_CACHE_CHECK([for wchar_t], gt_cv_c_wchar_t, + [AC_TRY_COMPILE([#include <stddef.h> + wchar_t foo = (wchar_t)'\0';], , + gt_cv_c_wchar_t=yes, gt_cv_c_wchar_t=no)]) + if test $gt_cv_c_wchar_t = yes; then + AC_DEFINE(HAVE_WCHAR_T, 1, [Define if you have the 'wchar_t' type.]) + fi +]) diff --git a/gl/m4/wint_t.m4 b/gl/m4/wint_t.m4 new file mode 100644 index 000000000..b8fff9c86 --- /dev/null +++ b/gl/m4/wint_t.m4 @@ -0,0 +1,20 @@ +# wint_t.m4 serial 1 (gettext-0.12) +dnl Copyright (C) 2003 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether <wchar.h> has the 'wint_t' type. +dnl Prerequisite: AC_PROG_CC + +AC_DEFUN([gt_TYPE_WINT_T], +[ + AC_CACHE_CHECK([for wint_t], gt_cv_c_wint_t, + [AC_TRY_COMPILE([#include <wchar.h> + wint_t foo = (wchar_t)'\0';], , + gt_cv_c_wint_t=yes, gt_cv_c_wint_t=no)]) + if test $gt_cv_c_wint_t = yes; then + AC_DEFINE(HAVE_WINT_T, 1, [Define if you have the 'wint_t' type.]) + fi +]) diff --git a/gl/m4/xsize.m4 b/gl/m4/xsize.m4 new file mode 100644 index 000000000..85bb721e4 --- /dev/null +++ b/gl/m4/xsize.m4 @@ -0,0 +1,13 @@ +# xsize.m4 serial 3 +dnl Copyright (C) 2003-2004 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_XSIZE], +[ + dnl Prerequisites of lib/xsize.h. + AC_REQUIRE([gl_SIZE_MAX]) + AC_REQUIRE([AC_C_INLINE]) + AC_CHECK_HEADERS(stdint.h) +]) diff --git a/gl/mkdtemp.c b/gl/mkdtemp.c new file mode 100644 index 000000000..469cf4718 --- /dev/null +++ b/gl/mkdtemp.c @@ -0,0 +1,203 @@ +/* Copyright (C) 1999, 2001-2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Extracted from misc/mkdtemp.c and sysdeps/posix/tempname.c. */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +/* Specification. */ +#include "mkdtemp.h" + +#include <errno.h> +#ifndef __set_errno +# define __set_errno(Val) errno = (Val) +#endif + +#include <stddef.h> +#include <stdlib.h> +#include <string.h> + +#include <stdio.h> +#ifndef TMP_MAX +# define TMP_MAX 238328 +#endif + +#if HAVE_STDINT_H || _LIBC +# include <stdint.h> +#endif +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +#if HAVE_UNISTD_H || _LIBC +# include <unistd.h> +#endif + +#if HAVE_GETTIMEOFDAY || _LIBC +# if HAVE_SYS_TIME_H || _LIBC +# include <sys/time.h> +# endif +#else +# if HAVE_TIME_H || _LIBC +# include <time.h> +# endif +#endif + +#include <sys/stat.h> +#if STAT_MACROS_BROKEN +# undef S_ISDIR +#endif +#if !defined S_ISDIR && defined S_IFDIR +# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) +#endif +#if !S_IRUSR && S_IREAD +# define S_IRUSR S_IREAD +#endif +#if !S_IRUSR +# define S_IRUSR 00400 +#endif +#if !S_IWUSR && S_IWRITE +# define S_IWUSR S_IWRITE +#endif +#if !S_IWUSR +# define S_IWUSR 00200 +#endif +#if !S_IXUSR && S_IEXEC +# define S_IXUSR S_IEXEC +#endif +#if !S_IXUSR +# define S_IXUSR 00100 +#endif + +#ifdef __MINGW32__ +/* mingw's mkdir() function has 1 argument, but we pass 2 arguments. + Therefore we have to disable the argument count checking. */ +# define mkdir ((int (*)()) mkdir) +#endif + +#if !_LIBC +# define __getpid getpid +# define __gettimeofday gettimeofday +# define __mkdir mkdir +#endif + +/* Use the widest available unsigned type if uint64_t is not + available. The algorithm below extracts a number less than 62**6 + (approximately 2**35.725) from uint64_t, so ancient hosts where + uintmax_t is only 32 bits lose about 3.725 bits of randomness, + which is better than not having mkstemp at all. */ +#if !defined UINT64_MAX && !defined uint64_t +# define uint64_t uintmax_t +#endif + +/* These are the characters used in temporary filenames. */ +static const char letters[] = +"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; + +/* Generate a temporary file name based on TMPL. TMPL must match the + rules for mk[s]temp (i.e. end in "XXXXXX"). The name constructed + does not exist at the time of the call to __gen_tempname. TMPL is + overwritten with the result. + + KIND is: + __GT_DIR: create a directory, which will be mode 0700. + + We use a clever algorithm to get hard-to-predict names. */ +static int +gen_tempname (char *tmpl) +{ + int len; + char *XXXXXX; + static uint64_t value; + uint64_t random_time_bits; + int count, fd = -1; + int save_errno = errno; + + len = strlen (tmpl); + if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX")) + { + __set_errno (EINVAL); + return -1; + } + + /* This is where the Xs start. */ + XXXXXX = &tmpl[len - 6]; + + /* Get some more or less random data. */ +#ifdef RANDOM_BITS + RANDOM_BITS (random_time_bits); +#else +# if HAVE_GETTIMEOFDAY || _LIBC + { + struct timeval tv; + __gettimeofday (&tv, NULL); + random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec; + } +# else + random_time_bits = time (NULL); +# endif +#endif + value += random_time_bits ^ __getpid (); + + for (count = 0; count < TMP_MAX; value += 7777, ++count) + { + uint64_t v = value; + + /* Fill in the random bits. */ + XXXXXX[0] = letters[v % 62]; + v /= 62; + XXXXXX[1] = letters[v % 62]; + v /= 62; + XXXXXX[2] = letters[v % 62]; + v /= 62; + XXXXXX[3] = letters[v % 62]; + v /= 62; + XXXXXX[4] = letters[v % 62]; + v /= 62; + XXXXXX[5] = letters[v % 62]; + + fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR); + + if (fd >= 0) + { + __set_errno (save_errno); + return fd; + } + else if (errno != EEXIST) + return -1; + } + + /* We got out of the loop because we ran out of combinations to try. */ + __set_errno (EEXIST); + return -1; +} + +/* Generate a unique temporary directory from TEMPLATE. + The last six characters of TEMPLATE must be "XXXXXX"; + they are replaced with a string that makes the filename unique. + The directory is created, mode 700, and its name is returned. + (This function comes from OpenBSD.) */ +char * +mkdtemp (char *template) +{ + if (gen_tempname (template)) + return NULL; + else + return template; +} diff --git a/gl/mkdtemp.h b/gl/mkdtemp.h new file mode 100644 index 000000000..617604801 --- /dev/null +++ b/gl/mkdtemp.h @@ -0,0 +1,32 @@ +/* Creating a private temporary directory. + Copyright (C) 2001-2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_MKDTEMP + +/* Get mkdtemp() declaration. */ +#include <stdlib.h> + +#else + +/* Create a unique temporary directory from TEMPLATE. + The last six characters of TEMPLATE must be "XXXXXX"; + they are replaced with a string that makes the directory name unique. + Returns TEMPLATE, or a null pointer if it cannot get a unique name. + The directory is created mode 700. */ +extern char * mkdtemp (char *template); + +#endif diff --git a/gl/printf-args.c b/gl/printf-args.c new file mode 100644 index 000000000..0ed1acbb8 --- /dev/null +++ b/gl/printf-args.c @@ -0,0 +1,118 @@ +/* Decomposed printf argument list. + Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#include "printf-args.h" + +#ifdef STATIC +STATIC +#endif +int +printf_fetchargs (va_list args, arguments *a) +{ + size_t i; + argument *ap; + + for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++) + switch (ap->type) + { + case TYPE_SCHAR: + ap->a.a_schar = va_arg (args, /*signed char*/ int); + break; + case TYPE_UCHAR: + ap->a.a_uchar = va_arg (args, /*unsigned char*/ int); + break; + case TYPE_SHORT: + ap->a.a_short = va_arg (args, /*short*/ int); + break; + case TYPE_USHORT: + ap->a.a_ushort = va_arg (args, /*unsigned short*/ int); + break; + case TYPE_INT: + ap->a.a_int = va_arg (args, int); + break; + case TYPE_UINT: + ap->a.a_uint = va_arg (args, unsigned int); + break; + case TYPE_LONGINT: + ap->a.a_longint = va_arg (args, long int); + break; + case TYPE_ULONGINT: + ap->a.a_ulongint = va_arg (args, unsigned long int); + break; +#ifdef HAVE_LONG_LONG + case TYPE_LONGLONGINT: + ap->a.a_longlongint = va_arg (args, long long int); + break; + case TYPE_ULONGLONGINT: + ap->a.a_ulonglongint = va_arg (args, unsigned long long int); + break; +#endif + case TYPE_DOUBLE: + ap->a.a_double = va_arg (args, double); + break; +#ifdef HAVE_LONG_DOUBLE + case TYPE_LONGDOUBLE: + ap->a.a_longdouble = va_arg (args, long double); + break; +#endif + case TYPE_CHAR: + ap->a.a_char = va_arg (args, int); + break; +#ifdef HAVE_WINT_T + case TYPE_WIDE_CHAR: + ap->a.a_wide_char = va_arg (args, wint_t); + break; +#endif + case TYPE_STRING: + ap->a.a_string = va_arg (args, const char *); + break; +#ifdef HAVE_WCHAR_T + case TYPE_WIDE_STRING: + ap->a.a_wide_string = va_arg (args, const wchar_t *); + break; +#endif + case TYPE_POINTER: + ap->a.a_pointer = va_arg (args, void *); + break; + case TYPE_COUNT_SCHAR_POINTER: + ap->a.a_count_schar_pointer = va_arg (args, signed char *); + break; + case TYPE_COUNT_SHORT_POINTER: + ap->a.a_count_short_pointer = va_arg (args, short *); + break; + case TYPE_COUNT_INT_POINTER: + ap->a.a_count_int_pointer = va_arg (args, int *); + break; + case TYPE_COUNT_LONGINT_POINTER: + ap->a.a_count_longint_pointer = va_arg (args, long int *); + break; +#ifdef HAVE_LONG_LONG + case TYPE_COUNT_LONGLONGINT_POINTER: + ap->a.a_count_longlongint_pointer = va_arg (args, long long int *); + break; +#endif + default: + /* Unknown type. */ + return -1; + } + return 0; +} diff --git a/gl/printf-args.h b/gl/printf-args.h new file mode 100644 index 000000000..cec1cc6c2 --- /dev/null +++ b/gl/printf-args.h @@ -0,0 +1,136 @@ +/* Decomposed printf argument list. + Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _PRINTF_ARGS_H +#define _PRINTF_ARGS_H + +/* Get size_t. */ +#include <stddef.h> + +/* Get wchar_t. */ +#ifdef HAVE_WCHAR_T +# include <stddef.h> +#endif + +/* Get wint_t. */ +#ifdef HAVE_WINT_T +# include <wchar.h> +#endif + +/* Get va_list. */ +#include <stdarg.h> + + +/* Argument types */ +typedef enum +{ + TYPE_NONE, + TYPE_SCHAR, + TYPE_UCHAR, + TYPE_SHORT, + TYPE_USHORT, + TYPE_INT, + TYPE_UINT, + TYPE_LONGINT, + TYPE_ULONGINT, +#ifdef HAVE_LONG_LONG + TYPE_LONGLONGINT, + TYPE_ULONGLONGINT, +#endif + TYPE_DOUBLE, +#ifdef HAVE_LONG_DOUBLE + TYPE_LONGDOUBLE, +#endif + TYPE_CHAR, +#ifdef HAVE_WINT_T + TYPE_WIDE_CHAR, +#endif + TYPE_STRING, +#ifdef HAVE_WCHAR_T + TYPE_WIDE_STRING, +#endif + TYPE_POINTER, + TYPE_COUNT_SCHAR_POINTER, + TYPE_COUNT_SHORT_POINTER, + TYPE_COUNT_INT_POINTER, + TYPE_COUNT_LONGINT_POINTER +#ifdef HAVE_LONG_LONG +, TYPE_COUNT_LONGLONGINT_POINTER +#endif +} arg_type; + +/* Polymorphic argument */ +typedef struct +{ + arg_type type; + union + { + signed char a_schar; + unsigned char a_uchar; + short a_short; + unsigned short a_ushort; + int a_int; + unsigned int a_uint; + long int a_longint; + unsigned long int a_ulongint; +#ifdef HAVE_LONG_LONG + long long int a_longlongint; + unsigned long long int a_ulonglongint; +#endif + float a_float; + double a_double; +#ifdef HAVE_LONG_DOUBLE + long double a_longdouble; +#endif + int a_char; +#ifdef HAVE_WINT_T + wint_t a_wide_char; +#endif + const char* a_string; +#ifdef HAVE_WCHAR_T + const wchar_t* a_wide_string; +#endif + void* a_pointer; + signed char * a_count_schar_pointer; + short * a_count_short_pointer; + int * a_count_int_pointer; + long int * a_count_longint_pointer; +#ifdef HAVE_LONG_LONG + long long int * a_count_longlongint_pointer; +#endif + } + a; +} +argument; + +typedef struct +{ + size_t count; + argument *arg; +} +arguments; + + +/* Fetch the arguments, putting them into a. */ +#ifdef STATIC +STATIC +#else +extern +#endif +int printf_fetchargs (va_list args, arguments *a); + +#endif /* _PRINTF_ARGS_H */ diff --git a/gl/printf-parse.c b/gl/printf-parse.c new file mode 100644 index 000000000..3d2fb175f --- /dev/null +++ b/gl/printf-parse.c @@ -0,0 +1,536 @@ +/* Formatted output to strings. + Copyright (C) 1999-2000, 2002-2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#if WIDE_CHAR_VERSION +# include "wprintf-parse.h" +#else +# include "printf-parse.h" +#endif + +/* Get size_t, NULL. */ +#include <stddef.h> + +/* Get intmax_t. */ +#if HAVE_STDINT_H_WITH_UINTMAX +# include <stdint.h> +#endif +#if HAVE_INTTYPES_H_WITH_UINTMAX +# include <inttypes.h> +#endif + +/* malloc(), realloc(), free(). */ +#include <stdlib.h> + +/* Checked size_t computations. */ +#include "xsize.h" + +#if WIDE_CHAR_VERSION +# define PRINTF_PARSE wprintf_parse +# define CHAR_T wchar_t +# define DIRECTIVE wchar_t_directive +# define DIRECTIVES wchar_t_directives +#else +# define PRINTF_PARSE printf_parse +# define CHAR_T char +# define DIRECTIVE char_directive +# define DIRECTIVES char_directives +#endif + +#ifdef STATIC +STATIC +#endif +int +PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a) +{ + const CHAR_T *cp = format; /* pointer into format */ + size_t arg_posn = 0; /* number of regular arguments consumed */ + size_t d_allocated; /* allocated elements of d->dir */ + size_t a_allocated; /* allocated elements of a->arg */ + size_t max_width_length = 0; + size_t max_precision_length = 0; + + d->count = 0; + d_allocated = 1; + d->dir = malloc (d_allocated * sizeof (DIRECTIVE)); + if (d->dir == NULL) + /* Out of memory. */ + return -1; + + a->count = 0; + a_allocated = 0; + a->arg = NULL; + +#define REGISTER_ARG(_index_,_type_) \ + { \ + size_t n = (_index_); \ + if (n >= a_allocated) \ + { \ + size_t memory_size; \ + argument *memory; \ + \ + a_allocated = xtimes (a_allocated, 2); \ + if (a_allocated <= n) \ + a_allocated = xsum (n, 1); \ + memory_size = xtimes (a_allocated, sizeof (argument)); \ + if (size_overflow_p (memory_size)) \ + /* Overflow, would lead to out of memory. */ \ + goto error; \ + memory = (a->arg \ + ? realloc (a->arg, memory_size) \ + : malloc (memory_size)); \ + if (memory == NULL) \ + /* Out of memory. */ \ + goto error; \ + a->arg = memory; \ + } \ + while (a->count <= n) \ + a->arg[a->count++].type = TYPE_NONE; \ + if (a->arg[n].type == TYPE_NONE) \ + a->arg[n].type = (_type_); \ + else if (a->arg[n].type != (_type_)) \ + /* Ambiguous type for positional argument. */ \ + goto error; \ + } + + while (*cp != '\0') + { + CHAR_T c = *cp++; + if (c == '%') + { + size_t arg_index = ARG_NONE; + DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */ + + /* Initialize the next directive. */ + dp->dir_start = cp - 1; + dp->flags = 0; + dp->width_start = NULL; + dp->width_end = NULL; + dp->width_arg_index = ARG_NONE; + dp->precision_start = NULL; + dp->precision_end = NULL; + dp->precision_arg_index = ARG_NONE; + dp->arg_index = ARG_NONE; + + /* Test for positional argument. */ + if (*cp >= '0' && *cp <= '9') + { + const CHAR_T *np; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + ; + if (*np == '$') + { + size_t n = 0; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + n = xsum (xtimes (n, 10), *np - '0'); + if (n == 0) + /* Positional argument 0. */ + goto error; + if (size_overflow_p (n)) + /* n too large, would lead to out of memory later. */ + goto error; + arg_index = n - 1; + cp = np + 1; + } + } + + /* Read the flags. */ + for (;;) + { + if (*cp == '\'') + { + dp->flags |= FLAG_GROUP; + cp++; + } + else if (*cp == '-') + { + dp->flags |= FLAG_LEFT; + cp++; + } + else if (*cp == '+') + { + dp->flags |= FLAG_SHOWSIGN; + cp++; + } + else if (*cp == ' ') + { + dp->flags |= FLAG_SPACE; + cp++; + } + else if (*cp == '#') + { + dp->flags |= FLAG_ALT; + cp++; + } + else if (*cp == '0') + { + dp->flags |= FLAG_ZERO; + cp++; + } + else + break; + } + + /* Parse the field width. */ + if (*cp == '*') + { + dp->width_start = cp; + cp++; + dp->width_end = cp; + if (max_width_length < 1) + max_width_length = 1; + + /* Test for positional argument. */ + if (*cp >= '0' && *cp <= '9') + { + const CHAR_T *np; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + ; + if (*np == '$') + { + size_t n = 0; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + n = xsum (xtimes (n, 10), *np - '0'); + if (n == 0) + /* Positional argument 0. */ + goto error; + if (size_overflow_p (n)) + /* n too large, would lead to out of memory later. */ + goto error; + dp->width_arg_index = n - 1; + cp = np + 1; + } + } + if (dp->width_arg_index == ARG_NONE) + { + dp->width_arg_index = arg_posn++; + if (dp->width_arg_index == ARG_NONE) + /* arg_posn wrapped around. */ + goto error; + } + REGISTER_ARG (dp->width_arg_index, TYPE_INT); + } + else if (*cp >= '0' && *cp <= '9') + { + size_t width_length; + + dp->width_start = cp; + for (; *cp >= '0' && *cp <= '9'; cp++) + ; + dp->width_end = cp; + width_length = dp->width_end - dp->width_start; + if (max_width_length < width_length) + max_width_length = width_length; + } + + /* Parse the precision. */ + if (*cp == '.') + { + cp++; + if (*cp == '*') + { + dp->precision_start = cp - 1; + cp++; + dp->precision_end = cp; + if (max_precision_length < 2) + max_precision_length = 2; + + /* Test for positional argument. */ + if (*cp >= '0' && *cp <= '9') + { + const CHAR_T *np; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + ; + if (*np == '$') + { + size_t n = 0; + + for (np = cp; *np >= '0' && *np <= '9'; np++) + n = xsum (xtimes (n, 10), *np - '0'); + if (n == 0) + /* Positional argument 0. */ + goto error; + if (size_overflow_p (n)) + /* n too large, would lead to out of memory + later. */ + goto error; + dp->precision_arg_index = n - 1; + cp = np + 1; + } + } + if (dp->precision_arg_index == ARG_NONE) + { + dp->precision_arg_index = arg_posn++; + if (dp->precision_arg_index == ARG_NONE) + /* arg_posn wrapped around. */ + goto error; + } + REGISTER_ARG (dp->precision_arg_index, TYPE_INT); + } + else + { + size_t precision_length; + + dp->precision_start = cp - 1; + for (; *cp >= '0' && *cp <= '9'; cp++) + ; + dp->precision_end = cp; + precision_length = dp->precision_end - dp->precision_start; + if (max_precision_length < precision_length) + max_precision_length = precision_length; + } + } + + { + arg_type type; + + /* Parse argument type/size specifiers. */ + { + int flags = 0; + + for (;;) + { + if (*cp == 'h') + { + flags |= (1 << (flags & 1)); + cp++; + } + else if (*cp == 'L') + { + flags |= 4; + cp++; + } + else if (*cp == 'l') + { + flags += 8; + cp++; + } +#ifdef HAVE_INTMAX_T + else if (*cp == 'j') + { + if (sizeof (intmax_t) > sizeof (long)) + { + /* intmax_t = long long */ + flags += 16; + } + else if (sizeof (intmax_t) > sizeof (int)) + { + /* intmax_t = long */ + flags += 8; + } + cp++; + } +#endif + else if (*cp == 'z' || *cp == 'Z') + { + /* 'z' is standardized in ISO C 99, but glibc uses 'Z' + because the warning facility in gcc-2.95.2 understands + only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784). */ + if (sizeof (size_t) > sizeof (long)) + { + /* size_t = long long */ + flags += 16; + } + else if (sizeof (size_t) > sizeof (int)) + { + /* size_t = long */ + flags += 8; + } + cp++; + } + else if (*cp == 't') + { + if (sizeof (ptrdiff_t) > sizeof (long)) + { + /* ptrdiff_t = long long */ + flags += 16; + } + else if (sizeof (ptrdiff_t) > sizeof (int)) + { + /* ptrdiff_t = long */ + flags += 8; + } + cp++; + } + else + break; + } + + /* Read the conversion character. */ + c = *cp++; + switch (c) + { + case 'd': case 'i': +#ifdef HAVE_LONG_LONG + if (flags >= 16 || (flags & 4)) + type = TYPE_LONGLONGINT; + else +#endif + if (flags >= 8) + type = TYPE_LONGINT; + else if (flags & 2) + type = TYPE_SCHAR; + else if (flags & 1) + type = TYPE_SHORT; + else + type = TYPE_INT; + break; + case 'o': case 'u': case 'x': case 'X': +#ifdef HAVE_LONG_LONG + if (flags >= 16 || (flags & 4)) + type = TYPE_ULONGLONGINT; + else +#endif + if (flags >= 8) + type = TYPE_ULONGINT; + else if (flags & 2) + type = TYPE_UCHAR; + else if (flags & 1) + type = TYPE_USHORT; + else + type = TYPE_UINT; + break; + case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': + case 'a': case 'A': +#ifdef HAVE_LONG_DOUBLE + if (flags >= 16 || (flags & 4)) + type = TYPE_LONGDOUBLE; + else +#endif + type = TYPE_DOUBLE; + break; + case 'c': + if (flags >= 8) +#ifdef HAVE_WINT_T + type = TYPE_WIDE_CHAR; +#else + goto error; +#endif + else + type = TYPE_CHAR; + break; +#ifdef HAVE_WINT_T + case 'C': + type = TYPE_WIDE_CHAR; + c = 'c'; + break; +#endif + case 's': + if (flags >= 8) +#ifdef HAVE_WCHAR_T + type = TYPE_WIDE_STRING; +#else + goto error; +#endif + else + type = TYPE_STRING; + break; +#ifdef HAVE_WCHAR_T + case 'S': + type = TYPE_WIDE_STRING; + c = 's'; + break; +#endif + case 'p': + type = TYPE_POINTER; + break; + case 'n': +#ifdef HAVE_LONG_LONG + if (flags >= 16 || (flags & 4)) + type = TYPE_COUNT_LONGLONGINT_POINTER; + else +#endif + if (flags >= 8) + type = TYPE_COUNT_LONGINT_POINTER; + else if (flags & 2) + type = TYPE_COUNT_SCHAR_POINTER; + else if (flags & 1) + type = TYPE_COUNT_SHORT_POINTER; + else + type = TYPE_COUNT_INT_POINTER; + break; + case '%': + type = TYPE_NONE; + break; + default: + /* Unknown conversion character. */ + goto error; + } + } + + if (type != TYPE_NONE) + { + dp->arg_index = arg_index; + if (dp->arg_index == ARG_NONE) + { + dp->arg_index = arg_posn++; + if (dp->arg_index == ARG_NONE) + /* arg_posn wrapped around. */ + goto error; + } + REGISTER_ARG (dp->arg_index, type); + } + dp->conversion = c; + dp->dir_end = cp; + } + + d->count++; + if (d->count >= d_allocated) + { + size_t memory_size; + DIRECTIVE *memory; + + d_allocated = xtimes (d_allocated, 2); + memory_size = xtimes (d_allocated, sizeof (DIRECTIVE)); + if (size_overflow_p (memory_size)) + /* Overflow, would lead to out of memory. */ + goto error; + memory = realloc (d->dir, memory_size); + if (memory == NULL) + /* Out of memory. */ + goto error; + d->dir = memory; + } + } + } + d->dir[d->count].dir_start = cp; + + d->max_width_length = max_width_length; + d->max_precision_length = max_precision_length; + return 0; + +error: + if (a->arg) + free (a->arg); + if (d->dir) + free (d->dir); + return -1; +} + +#undef DIRECTIVES +#undef DIRECTIVE +#undef CHAR_T +#undef PRINTF_PARSE diff --git a/gl/printf-parse.h b/gl/printf-parse.h new file mode 100644 index 000000000..82a0d37cd --- /dev/null +++ b/gl/printf-parse.h @@ -0,0 +1,74 @@ +/* Parse printf format string. + Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _PRINTF_PARSE_H +#define _PRINTF_PARSE_H + +#include "printf-args.h" + + +/* Flags */ +#define FLAG_GROUP 1 /* ' flag */ +#define FLAG_LEFT 2 /* - flag */ +#define FLAG_SHOWSIGN 4 /* + flag */ +#define FLAG_SPACE 8 /* space flag */ +#define FLAG_ALT 16 /* # flag */ +#define FLAG_ZERO 32 + +/* arg_index value indicating that no argument is consumed. */ +#define ARG_NONE (~(size_t)0) + +/* A parsed directive. */ +typedef struct +{ + const char* dir_start; + const char* dir_end; + int flags; + const char* width_start; + const char* width_end; + size_t width_arg_index; + const char* precision_start; + const char* precision_end; + size_t precision_arg_index; + char conversion; /* d i o u x X f e E g G c s p n U % but not C S */ + size_t arg_index; +} +char_directive; + +/* A parsed format string. */ +typedef struct +{ + size_t count; + char_directive *dir; + size_t max_width_length; + size_t max_precision_length; +} +char_directives; + + +/* Parses the format string. Fills in the number N of directives, and fills + in directives[0], ..., directives[N-1], and sets directives[N].dir_start + to the end of the format string. Also fills in the arg_type fields of the + arguments and the needed count of arguments. */ +#ifdef STATIC +STATIC +#else +extern +#endif +int printf_parse (const char *format, char_directives *d, arguments *a); + +#endif /* _PRINTF_PARSE_H */ diff --git a/gl/setenv.c b/gl/setenv.c new file mode 100644 index 000000000..33dbeb7a3 --- /dev/null +++ b/gl/setenv.c @@ -0,0 +1,328 @@ +/* Copyright (C) 1992,1995-1999,2000-2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif +#include <alloca.h> + +#include <errno.h> +#ifndef __set_errno +# define __set_errno(ev) ((errno) = (ev)) +#endif + +#include <stdlib.h> +#include <string.h> +#if _LIBC || HAVE_UNISTD_H +# include <unistd.h> +#endif + +#if !_LIBC +# include "allocsa.h" +#endif + +#if !_LIBC +# define __environ environ +# ifndef HAVE_ENVIRON_DECL +extern char **environ; +# endif +#endif + +#if _LIBC +/* This lock protects against simultaneous modifications of `environ'. */ +# include <bits/libc-lock.h> +__libc_lock_define_initialized (static, envlock) +# define LOCK __libc_lock_lock (envlock) +# define UNLOCK __libc_lock_unlock (envlock) +#else +# define LOCK +# define UNLOCK +#endif + +/* In the GNU C library we must keep the namespace clean. */ +#ifdef _LIBC +# define setenv __setenv +# define clearenv __clearenv +# define tfind __tfind +# define tsearch __tsearch +#endif + +/* In the GNU C library implementation we try to be more clever and + allow arbitrarily many changes of the environment given that the used + values are from a small set. Outside glibc this will eat up all + memory after a while. */ +#if defined _LIBC || (defined HAVE_SEARCH_H && defined HAVE_TSEARCH \ + && defined __GNUC__) +# define USE_TSEARCH 1 +# include <search.h> +typedef int (*compar_fn_t) (const void *, const void *); + +/* This is a pointer to the root of the search tree with the known + values. */ +static void *known_values; + +# define KNOWN_VALUE(Str) \ + ({ \ + void *value = tfind (Str, &known_values, (compar_fn_t) strcmp); \ + value != NULL ? *(char **) value : NULL; \ + }) +# define STORE_VALUE(Str) \ + tsearch (Str, &known_values, (compar_fn_t) strcmp) + +#else +# undef USE_TSEARCH + +# define KNOWN_VALUE(Str) NULL +# define STORE_VALUE(Str) do { } while (0) + +#endif + + +/* If this variable is not a null pointer we allocated the current + environment. */ +static char **last_environ; + + +/* This function is used by `setenv' and `putenv'. The difference between + the two functions is that for the former must create a new string which + is then placed in the environment, while the argument of `putenv' + must be used directly. This is all complicated by the fact that we try + to reuse values once generated for a `setenv' call since we can never + free the strings. */ +int +__add_to_environ (const char *name, const char *value, const char *combined, + int replace) +{ + register char **ep; + register size_t size; + const size_t namelen = strlen (name); + const size_t vallen = value != NULL ? strlen (value) + 1 : 0; + + LOCK; + + /* We have to get the pointer now that we have the lock and not earlier + since another thread might have created a new environment. */ + ep = __environ; + + size = 0; + if (ep != NULL) + { + for (; *ep != NULL; ++ep) + if (!strncmp (*ep, name, namelen) && (*ep)[namelen] == '=') + break; + else + ++size; + } + + if (ep == NULL || *ep == NULL) + { + char **new_environ; +#ifdef USE_TSEARCH + char *new_value; +#endif + + /* We allocated this space; we can extend it. */ + new_environ = + (char **) (last_environ == NULL + ? malloc ((size + 2) * sizeof (char *)) + : realloc (last_environ, (size + 2) * sizeof (char *))); + if (new_environ == NULL) + { + UNLOCK; + return -1; + } + + /* If the whole entry is given add it. */ + if (combined != NULL) + /* We must not add the string to the search tree since it belongs + to the user. */ + new_environ[size] = (char *) combined; + else + { + /* See whether the value is already known. */ +#ifdef USE_TSEARCH +# ifdef _LIBC + new_value = (char *) alloca (namelen + 1 + vallen); + __mempcpy (__mempcpy (__mempcpy (new_value, name, namelen), "=", 1), + value, vallen); +# else + new_value = (char *) allocsa (namelen + 1 + vallen); + if (new_value == NULL) + { + __set_errno (ENOMEM); + UNLOCK; + return -1; + } + memcpy (new_value, name, namelen); + new_value[namelen] = '='; + memcpy (&new_value[namelen + 1], value, vallen); +# endif + + new_environ[size] = KNOWN_VALUE (new_value); + if (new_environ[size] == NULL) +#endif + { + new_environ[size] = (char *) malloc (namelen + 1 + vallen); + if (new_environ[size] == NULL) + { +#if defined USE_TSEARCH && !defined _LIBC + freesa (new_value); +#endif + __set_errno (ENOMEM); + UNLOCK; + return -1; + } + +#ifdef USE_TSEARCH + memcpy (new_environ[size], new_value, namelen + 1 + vallen); +#else + memcpy (new_environ[size], name, namelen); + new_environ[size][namelen] = '='; + memcpy (&new_environ[size][namelen + 1], value, vallen); +#endif + /* And save the value now. We cannot do this when we remove + the string since then we cannot decide whether it is a + user string or not. */ + STORE_VALUE (new_environ[size]); + } +#if defined USE_TSEARCH && !defined _LIBC + freesa (new_value); +#endif + } + + if (__environ != last_environ) + memcpy ((char *) new_environ, (char *) __environ, + size * sizeof (char *)); + + new_environ[size + 1] = NULL; + + last_environ = __environ = new_environ; + } + else if (replace) + { + char *np; + + /* Use the user string if given. */ + if (combined != NULL) + np = (char *) combined; + else + { +#ifdef USE_TSEARCH + char *new_value; +# ifdef _LIBC + new_value = alloca (namelen + 1 + vallen); + __mempcpy (__mempcpy (__mempcpy (new_value, name, namelen), "=", 1), + value, vallen); +# else + new_value = allocsa (namelen + 1 + vallen); + if (new_value == NULL) + { + __set_errno (ENOMEM); + UNLOCK; + return -1; + } + memcpy (new_value, name, namelen); + new_value[namelen] = '='; + memcpy (&new_value[namelen + 1], value, vallen); +# endif + + np = KNOWN_VALUE (new_value); + if (np == NULL) +#endif + { + np = malloc (namelen + 1 + vallen); + if (np == NULL) + { +#if defined USE_TSEARCH && !defined _LIBC + freesa (new_value); +#endif + __set_errno (ENOMEM); + UNLOCK; + return -1; + } + +#ifdef USE_TSEARCH + memcpy (np, new_value, namelen + 1 + vallen); +#else + memcpy (np, name, namelen); + np[namelen] = '='; + memcpy (&np[namelen + 1], value, vallen); +#endif + /* And remember the value. */ + STORE_VALUE (np); + } +#if defined USE_TSEARCH && !defined _LIBC + freesa (new_value); +#endif + } + + *ep = np; + } + + UNLOCK; + + return 0; +} + +int +setenv (const char *name, const char *value, int replace) +{ + return __add_to_environ (name, value, NULL, replace); +} + +/* The `clearenv' was planned to be added to POSIX.1 but probably + never made it. Nevertheless the POSIX.9 standard (POSIX bindings + for Fortran 77) requires this function. */ +int +clearenv (void) +{ + LOCK; + + if (__environ == last_environ && __environ != NULL) + { + /* We allocated this environment so we can free it. */ + free (__environ); + last_environ = NULL; + } + + /* Clear the environment pointer removes the whole environment. */ + __environ = NULL; + + UNLOCK; + + return 0; +} + +#ifdef _LIBC +static void +free_mem (void) +{ + /* Remove all traces. */ + clearenv (); + + /* Now remove the search tree. */ + __tdestroy (known_values, free); + known_values = NULL; +} +text_set_element (__libc_subfreeres, free_mem); + + +# undef setenv +# undef clearenv +weak_alias (__setenv, setenv) +weak_alias (__clearenv, clearenv) +#endif diff --git a/gl/setenv.h b/gl/setenv.h new file mode 100644 index 000000000..c89e7da4d --- /dev/null +++ b/gl/setenv.h @@ -0,0 +1,54 @@ +/* Setting environment variables. + Copyright (C) 2001-2004 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_SETENV || HAVE_UNSETENV + +/* Get setenv(), unsetenv() declarations. */ +# include <stdlib.h> + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#if !HAVE_SETENV + +/* Set NAME to VALUE in the environment. + If REPLACE is nonzero, overwrite an existing value. */ +extern int setenv (const char *name, const char *value, int replace); + +#endif + +#if HAVE_UNSETENV + +# if VOID_UNSETENV +/* On some systems, unsetenv() returns void. + This is the case for FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */ +# define unsetenv(name) ((unsetenv)(name), 0) +# endif + +#else + +/* Remove the variable NAME from the environment. */ +extern int unsetenv (const char *name); + +#endif + +#ifdef __cplusplus +} +#endif diff --git a/gl/strpbrk.c b/gl/strpbrk.c new file mode 100644 index 000000000..9152440b1 --- /dev/null +++ b/gl/strpbrk.c @@ -0,0 +1,42 @@ +/* Copyright (C) 1991, 1994, 2000, 2002-2003 Free Software Foundation, Inc. + NOTE: The canonical source of this file is maintained with the GNU C Library. + Bugs can be reported to [email protected]. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stddef.h> +#include <string.h> + +#undef strpbrk + +/* Find the first occurrence in S of any character in ACCEPT. */ +char * +strpbrk (const char *s, const char *accept) +{ + while (*s != '\0') + { + const char *a = accept; + while (*a != '\0') + if (*a++ == *s) + return (char *) s; + ++s; + } + + return NULL; +} diff --git a/gl/strpbrk.h b/gl/strpbrk.h new file mode 100644 index 000000000..acc8d358b --- /dev/null +++ b/gl/strpbrk.h @@ -0,0 +1,28 @@ +/* Searching in a string. + Copyright (C) 2001-2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_STRPBRK + +/* Get strpbrk() declaration. */ +#include <string.h> + +#else + +/* Find the first occurrence in S of any character in ACCEPT. */ +extern char *strpbrk (const char *s, const char *accept); + +#endif diff --git a/gl/strsep.c b/gl/strsep.c new file mode 100644 index 000000000..40c2939c8 --- /dev/null +++ b/gl/strsep.c @@ -0,0 +1,55 @@ +/* Copyright (C) 2004 Free Software Foundation, Inc. + + Written by Yoann Vandoorselaere <[email protected]>. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +/* Specification. */ +#include "strsep.h" + +#include <string.h> + +#include "strpbrk.h" + +char * +strsep (char **stringp, const char *delim) +{ + char *start = *stringp; + char *ptr; + + if (!start) + return NULL; + + if (!*delim) + ptr = start + strlen (start); + else + { + ptr = strpbrk (start, delim); + if (!ptr) + { + *stringp = NULL; + return start; + } + } + + *ptr = '\0'; + *stringp = ptr + 1; + + return start; +} diff --git a/gl/strsep.h b/gl/strsep.h new file mode 100644 index 000000000..ca28a2ffe --- /dev/null +++ b/gl/strsep.h @@ -0,0 +1,52 @@ +/* Copyright (C) 2004 Free Software Foundation, Inc. + + Written by Yoann Vandoorselaere <[email protected]>. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef GNULIB_STRSEP_H_ +#define GNULIB_STRSEP_H_ + +#if HAVE_STRSEP + +/* + * Get strsep() declaration. + */ +#include <string.h> + +#else + +/* Searches the next delimiter (char listed in DELIM) starting at *STRINGP. + If one is found, it is overwritten with a NUL, and *STRINGP is advanced + to point to the next char after it. Otherwise, *STRINGP is set to NULL. + If *STRINGP was already NULL, nothing happens. + Returns the old value of *STRINGP. + + This is a variant of strtok() that is multithread-safe and supports + empty fields. + + Caveat: It modifies the original string. + Caveat: These functions cannot be used on constant strings. + Caveat: The identity of the delimiting character is lost. + Caveat: It doesn't work with multibyte strings unless all of the delimiter + characters are ASCII characters < 0x30. + + See also strtok_r(). */ + +extern char *strsep (char **stringp, const char *delim); + +#endif + +#endif /* GNULIB_STRSEP_H_ */ diff --git a/gl/unsetenv.c b/gl/unsetenv.c new file mode 100644 index 000000000..4b53fc9c8 --- /dev/null +++ b/gl/unsetenv.c @@ -0,0 +1,99 @@ +/* Copyright (C) 1992,1995-1999,2000-2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#include <errno.h> +#if !_LIBC +# if !defined errno && !defined HAVE_ERRNO_DECL +extern int errno; +# endif +# define __set_errno(ev) ((errno) = (ev)) +#endif + +#include <stdlib.h> +#include <string.h> +#if _LIBC || HAVE_UNISTD_H +# include <unistd.h> +#endif + +#if !_LIBC +# define __environ environ +# ifndef HAVE_ENVIRON_DECL +extern char **environ; +# endif +#endif + +#if _LIBC +/* This lock protects against simultaneous modifications of `environ'. */ +# include <bits/libc-lock.h> +__libc_lock_define_initialized (static, envlock) +# define LOCK __libc_lock_lock (envlock) +# define UNLOCK __libc_lock_unlock (envlock) +#else +# define LOCK +# define UNLOCK +#endif + +/* In the GNU C library we must keep the namespace clean. */ +#ifdef _LIBC +# define unsetenv __unsetenv +#endif + + +int +unsetenv (const char *name) +{ + size_t len; + char **ep; + + if (name == NULL || *name == '\0' || strchr (name, '=') != NULL) + { + __set_errno (EINVAL); + return -1; + } + + len = strlen (name); + + LOCK; + + ep = __environ; + while (*ep != NULL) + if (!strncmp (*ep, name, len) && (*ep)[len] == '=') + { + /* Found it. Remove this pointer by moving later ones back. */ + char **dp = ep; + + do + dp[0] = dp[1]; + while (*dp++); + /* Continue the loop in case NAME appears again. */ + } + else + ++ep; + + UNLOCK; + + return 0; +} + +#ifdef _LIBC +# undef unsetenv +weak_alias (__unsetenv, unsetenv) +#endif diff --git a/gl/vasnprintf.c b/gl/vasnprintf.c new file mode 100644 index 000000000..324d62ecd --- /dev/null +++ b/gl/vasnprintf.c @@ -0,0 +1,901 @@ +/* vsprintf with automatic memory allocation. + Copyright (C) 1999, 2002-2005 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Tell glibc's <stdio.h> to provide a prototype for snprintf(). + This must come before <config.h> because <config.h> may include + <features.h>, and once <features.h> has been included, it's too late. */ +#ifndef _GNU_SOURCE +# define _GNU_SOURCE 1 +#endif + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif +#ifndef IN_LIBINTL +# include <alloca.h> +#endif + +/* Specification. */ +#if WIDE_CHAR_VERSION +# include "vasnwprintf.h" +#else +# include "vasnprintf.h" +#endif + +#include <stdio.h> /* snprintf(), sprintf() */ +#include <stdlib.h> /* abort(), malloc(), realloc(), free() */ +#include <string.h> /* memcpy(), strlen() */ +#include <errno.h> /* errno */ +#include <limits.h> /* CHAR_BIT, INT_MAX */ +#include <float.h> /* DBL_MAX_EXP, LDBL_MAX_EXP */ +#if WIDE_CHAR_VERSION +# include "wprintf-parse.h" +#else +# include "printf-parse.h" +#endif + +/* Checked size_t computations. */ +#include "xsize.h" + +/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */ +#ifndef EOVERFLOW +# define EOVERFLOW E2BIG +#endif + +#ifdef HAVE_WCHAR_T +# ifdef HAVE_WCSLEN +# define local_wcslen wcslen +# else + /* Solaris 2.5.1 has wcslen() in a separate library libw.so. To avoid + a dependency towards this library, here is a local substitute. + Define this substitute only once, even if this file is included + twice in the same compilation unit. */ +# ifndef local_wcslen_defined +# define local_wcslen_defined 1 +static size_t +local_wcslen (const wchar_t *s) +{ + const wchar_t *ptr; + + for (ptr = s; *ptr != (wchar_t) 0; ptr++) + ; + return ptr - s; +} +# endif +# endif +#endif + +#if WIDE_CHAR_VERSION +# define VASNPRINTF vasnwprintf +# define CHAR_T wchar_t +# define DIRECTIVE wchar_t_directive +# define DIRECTIVES wchar_t_directives +# define PRINTF_PARSE wprintf_parse +# define USE_SNPRINTF 1 +# if HAVE_DECL__SNWPRINTF + /* On Windows, the function swprintf() has a different signature than + on Unix; we use the _snwprintf() function instead. */ +# define SNPRINTF _snwprintf +# else + /* Unix. */ +# define SNPRINTF swprintf +# endif +#else +# define VASNPRINTF vasnprintf +# define CHAR_T char +# define DIRECTIVE char_directive +# define DIRECTIVES char_directives +# define PRINTF_PARSE printf_parse +# define USE_SNPRINTF (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF) +# if HAVE_DECL__SNPRINTF + /* Windows. */ +# define SNPRINTF _snprintf +# else + /* Unix. */ +# define SNPRINTF snprintf +# endif +#endif + +CHAR_T * +VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list args) +{ + DIRECTIVES d; + arguments a; + + if (PRINTF_PARSE (format, &d, &a) < 0) + { + errno = EINVAL; + return NULL; + } + +#define CLEANUP() \ + free (d.dir); \ + if (a.arg) \ + free (a.arg); + + if (printf_fetchargs (args, &a) < 0) + { + CLEANUP (); + errno = EINVAL; + return NULL; + } + + { + size_t buf_neededlength; + CHAR_T *buf; + CHAR_T *buf_malloced; + const CHAR_T *cp; + size_t i; + DIRECTIVE *dp; + /* Output string accumulator. */ + CHAR_T *result; + size_t allocated; + size_t length; + + /* Allocate a small buffer that will hold a directive passed to + sprintf or snprintf. */ + buf_neededlength = + xsum4 (7, d.max_width_length, d.max_precision_length, 6); +#if HAVE_ALLOCA + if (buf_neededlength < 4000 / sizeof (CHAR_T)) + { + buf = (CHAR_T *) alloca (buf_neededlength * sizeof (CHAR_T)); + buf_malloced = NULL; + } + else +#endif + { + size_t buf_memsize = xtimes (buf_neededlength, sizeof (CHAR_T)); + if (size_overflow_p (buf_memsize)) + goto out_of_memory_1; + buf = (CHAR_T *) malloc (buf_memsize); + if (buf == NULL) + goto out_of_memory_1; + buf_malloced = buf; + } + + if (resultbuf != NULL) + { + result = resultbuf; + allocated = *lengthp; + } + else + { + result = NULL; + allocated = 0; + } + length = 0; + /* Invariants: + result is either == resultbuf or == NULL or malloc-allocated. + If length > 0, then result != NULL. */ + + /* Ensures that allocated >= needed. Aborts through a jump to + out_of_memory if needed is SIZE_MAX or otherwise too big. */ +#define ENSURE_ALLOCATION(needed) \ + if ((needed) > allocated) \ + { \ + size_t memory_size; \ + CHAR_T *memory; \ + \ + allocated = (allocated > 0 ? xtimes (allocated, 2) : 12); \ + if ((needed) > allocated) \ + allocated = (needed); \ + memory_size = xtimes (allocated, sizeof (CHAR_T)); \ + if (size_overflow_p (memory_size)) \ + goto out_of_memory; \ + if (result == resultbuf || result == NULL) \ + memory = (CHAR_T *) malloc (memory_size); \ + else \ + memory = (CHAR_T *) realloc (result, memory_size); \ + if (memory == NULL) \ + goto out_of_memory; \ + if (result == resultbuf && length > 0) \ + memcpy (memory, result, length * sizeof (CHAR_T)); \ + result = memory; \ + } + + for (cp = format, i = 0, dp = &d.dir[0]; ; cp = dp->dir_end, i++, dp++) + { + if (cp != dp->dir_start) + { + size_t n = dp->dir_start - cp; + size_t augmented_length = xsum (length, n); + + ENSURE_ALLOCATION (augmented_length); + memcpy (result + length, cp, n * sizeof (CHAR_T)); + length = augmented_length; + } + if (i == d.count) + break; + + /* Execute a single directive. */ + if (dp->conversion == '%') + { + size_t augmented_length; + + if (!(dp->arg_index == ARG_NONE)) + abort (); + augmented_length = xsum (length, 1); + ENSURE_ALLOCATION (augmented_length); + result[length] = '%'; + length = augmented_length; + } + else + { + if (!(dp->arg_index != ARG_NONE)) + abort (); + + if (dp->conversion == 'n') + { + switch (a.arg[dp->arg_index].type) + { + case TYPE_COUNT_SCHAR_POINTER: + *a.arg[dp->arg_index].a.a_count_schar_pointer = length; + break; + case TYPE_COUNT_SHORT_POINTER: + *a.arg[dp->arg_index].a.a_count_short_pointer = length; + break; + case TYPE_COUNT_INT_POINTER: + *a.arg[dp->arg_index].a.a_count_int_pointer = length; + break; + case TYPE_COUNT_LONGINT_POINTER: + *a.arg[dp->arg_index].a.a_count_longint_pointer = length; + break; +#ifdef HAVE_LONG_LONG + case TYPE_COUNT_LONGLONGINT_POINTER: + *a.arg[dp->arg_index].a.a_count_longlongint_pointer = length; + break; +#endif + default: + abort (); + } + } + else + { + arg_type type = a.arg[dp->arg_index].type; + CHAR_T *p; + unsigned int prefix_count; + int prefixes[2]; +#if !USE_SNPRINTF + size_t tmp_length; + CHAR_T tmpbuf[700]; + CHAR_T *tmp; + + /* Allocate a temporary buffer of sufficient size for calling + sprintf. */ + { + size_t width; + size_t precision; + + width = 0; + if (dp->width_start != dp->width_end) + { + if (dp->width_arg_index != ARG_NONE) + { + int arg; + + if (!(a.arg[dp->width_arg_index].type == TYPE_INT)) + abort (); + arg = a.arg[dp->width_arg_index].a.a_int; + width = (arg < 0 ? (unsigned int) (-arg) : arg); + } + else + { + const CHAR_T *digitp = dp->width_start; + + do + width = xsum (xtimes (width, 10), *digitp++ - '0'); + while (digitp != dp->width_end); + } + } + + precision = 6; + if (dp->precision_start != dp->precision_end) + { + if (dp->precision_arg_index != ARG_NONE) + { + int arg; + + if (!(a.arg[dp->precision_arg_index].type == TYPE_INT)) + abort (); + arg = a.arg[dp->precision_arg_index].a.a_int; + precision = (arg < 0 ? 0 : arg); + } + else + { + const CHAR_T *digitp = dp->precision_start + 1; + + precision = 0; + while (digitp != dp->precision_end) + precision = xsum (xtimes (precision, 10), *digitp++ - '0'); + } + } + + switch (dp->conversion) + { + + case 'd': case 'i': case 'u': +# ifdef HAVE_LONG_LONG + if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long long) * CHAR_BIT + * 0.30103 /* binary -> decimal */ + * 2 /* estimate for FLAG_GROUP */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + else +# endif + if (type == TYPE_LONGINT || type == TYPE_ULONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long) * CHAR_BIT + * 0.30103 /* binary -> decimal */ + * 2 /* estimate for FLAG_GROUP */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + else + tmp_length = + (unsigned int) (sizeof (unsigned int) * CHAR_BIT + * 0.30103 /* binary -> decimal */ + * 2 /* estimate for FLAG_GROUP */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + break; + + case 'o': +# ifdef HAVE_LONG_LONG + if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long long) * CHAR_BIT + * 0.333334 /* binary -> octal */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + else +# endif + if (type == TYPE_LONGINT || type == TYPE_ULONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long) * CHAR_BIT + * 0.333334 /* binary -> octal */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + else + tmp_length = + (unsigned int) (sizeof (unsigned int) * CHAR_BIT + * 0.333334 /* binary -> octal */ + ) + + 1 /* turn floor into ceil */ + + 1; /* account for leading sign */ + break; + + case 'x': case 'X': +# ifdef HAVE_LONG_LONG + if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long long) * CHAR_BIT + * 0.25 /* binary -> hexadecimal */ + ) + + 1 /* turn floor into ceil */ + + 2; /* account for leading sign or alternate form */ + else +# endif + if (type == TYPE_LONGINT || type == TYPE_ULONGINT) + tmp_length = + (unsigned int) (sizeof (unsigned long) * CHAR_BIT + * 0.25 /* binary -> hexadecimal */ + ) + + 1 /* turn floor into ceil */ + + 2; /* account for leading sign or alternate form */ + else + tmp_length = + (unsigned int) (sizeof (unsigned int) * CHAR_BIT + * 0.25 /* binary -> hexadecimal */ + ) + + 1 /* turn floor into ceil */ + + 2; /* account for leading sign or alternate form */ + break; + + case 'f': case 'F': +# ifdef HAVE_LONG_DOUBLE + if (type == TYPE_LONGDOUBLE) + tmp_length = + (unsigned int) (LDBL_MAX_EXP + * 0.30103 /* binary -> decimal */ + * 2 /* estimate for FLAG_GROUP */ + ) + + 1 /* turn floor into ceil */ + + 10; /* sign, decimal point etc. */ + else +# endif + tmp_length = + (unsigned int) (DBL_MAX_EXP + * 0.30103 /* binary -> decimal */ + * 2 /* estimate for FLAG_GROUP */ + ) + + 1 /* turn floor into ceil */ + + 10; /* sign, decimal point etc. */ + tmp_length = xsum (tmp_length, precision); + break; + + case 'e': case 'E': case 'g': case 'G': + case 'a': case 'A': + tmp_length = + 12; /* sign, decimal point, exponent etc. */ + tmp_length = xsum (tmp_length, precision); + break; + + case 'c': +# if defined HAVE_WINT_T && !WIDE_CHAR_VERSION + if (type == TYPE_WIDE_CHAR) + tmp_length = MB_CUR_MAX; + else +# endif + tmp_length = 1; + break; + + case 's': +# ifdef HAVE_WCHAR_T + if (type == TYPE_WIDE_STRING) + { + tmp_length = + local_wcslen (a.arg[dp->arg_index].a.a_wide_string); + +# if !WIDE_CHAR_VERSION + tmp_length = xtimes (tmp_length, MB_CUR_MAX); +# endif + } + else +# endif + tmp_length = strlen (a.arg[dp->arg_index].a.a_string); + break; + + case 'p': + tmp_length = + (unsigned int) (sizeof (void *) * CHAR_BIT + * 0.25 /* binary -> hexadecimal */ + ) + + 1 /* turn floor into ceil */ + + 2; /* account for leading 0x */ + break; + + default: + abort (); + } + + if (tmp_length < width) + tmp_length = width; + + tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */ + } + + if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T)) + tmp = tmpbuf; + else + { + size_t tmp_memsize = xtimes (tmp_length, sizeof (CHAR_T)); + + if (size_overflow_p (tmp_memsize)) + /* Overflow, would lead to out of memory. */ + goto out_of_memory; + tmp = (CHAR_T *) malloc (tmp_memsize); + if (tmp == NULL) + /* Out of memory. */ + goto out_of_memory; + } +#endif + + /* Construct the format string for calling snprintf or + sprintf. */ + p = buf; + *p++ = '%'; + if (dp->flags & FLAG_GROUP) + *p++ = '\''; + if (dp->flags & FLAG_LEFT) + *p++ = '-'; + if (dp->flags & FLAG_SHOWSIGN) + *p++ = '+'; + if (dp->flags & FLAG_SPACE) + *p++ = ' '; + if (dp->flags & FLAG_ALT) + *p++ = '#'; + if (dp->flags & FLAG_ZERO) + *p++ = '0'; + if (dp->width_start != dp->width_end) + { + size_t n = dp->width_end - dp->width_start; + memcpy (p, dp->width_start, n * sizeof (CHAR_T)); + p += n; + } + if (dp->precision_start != dp->precision_end) + { + size_t n = dp->precision_end - dp->precision_start; + memcpy (p, dp->precision_start, n * sizeof (CHAR_T)); + p += n; + } + + switch (type) + { +#ifdef HAVE_LONG_LONG + case TYPE_LONGLONGINT: + case TYPE_ULONGLONGINT: + *p++ = 'l'; + /*FALLTHROUGH*/ +#endif + case TYPE_LONGINT: + case TYPE_ULONGINT: +#ifdef HAVE_WINT_T + case TYPE_WIDE_CHAR: +#endif +#ifdef HAVE_WCHAR_T + case TYPE_WIDE_STRING: +#endif + *p++ = 'l'; + break; +#ifdef HAVE_LONG_DOUBLE + case TYPE_LONGDOUBLE: + *p++ = 'L'; + break; +#endif + default: + break; + } + *p = dp->conversion; +#if USE_SNPRINTF + p[1] = '%'; + p[2] = 'n'; + p[3] = '\0'; +#else + p[1] = '\0'; +#endif + + /* Construct the arguments for calling snprintf or sprintf. */ + prefix_count = 0; + if (dp->width_arg_index != ARG_NONE) + { + if (!(a.arg[dp->width_arg_index].type == TYPE_INT)) + abort (); + prefixes[prefix_count++] = a.arg[dp->width_arg_index].a.a_int; + } + if (dp->precision_arg_index != ARG_NONE) + { + if (!(a.arg[dp->precision_arg_index].type == TYPE_INT)) + abort (); + prefixes[prefix_count++] = a.arg[dp->precision_arg_index].a.a_int; + } + +#if USE_SNPRINTF + /* Prepare checking whether snprintf returns the count + via %n. */ + ENSURE_ALLOCATION (xsum (length, 1)); + result[length] = '\0'; +#endif + + for (;;) + { + size_t maxlen; + int count; + int retcount; + + maxlen = allocated - length; + count = -1; + retcount = 0; + +#if USE_SNPRINTF +# define SNPRINTF_BUF(arg) \ + switch (prefix_count) \ + { \ + case 0: \ + retcount = SNPRINTF (result + length, maxlen, buf, \ + arg, &count); \ + break; \ + case 1: \ + retcount = SNPRINTF (result + length, maxlen, buf, \ + prefixes[0], arg, &count); \ + break; \ + case 2: \ + retcount = SNPRINTF (result + length, maxlen, buf, \ + prefixes[0], prefixes[1], arg, \ + &count); \ + break; \ + default: \ + abort (); \ + } +#else +# define SNPRINTF_BUF(arg) \ + switch (prefix_count) \ + { \ + case 0: \ + count = sprintf (tmp, buf, arg); \ + break; \ + case 1: \ + count = sprintf (tmp, buf, prefixes[0], arg); \ + break; \ + case 2: \ + count = sprintf (tmp, buf, prefixes[0], prefixes[1],\ + arg); \ + break; \ + default: \ + abort (); \ + } +#endif + + switch (type) + { + case TYPE_SCHAR: + { + int arg = a.arg[dp->arg_index].a.a_schar; + SNPRINTF_BUF (arg); + } + break; + case TYPE_UCHAR: + { + unsigned int arg = a.arg[dp->arg_index].a.a_uchar; + SNPRINTF_BUF (arg); + } + break; + case TYPE_SHORT: + { + int arg = a.arg[dp->arg_index].a.a_short; + SNPRINTF_BUF (arg); + } + break; + case TYPE_USHORT: + { + unsigned int arg = a.arg[dp->arg_index].a.a_ushort; + SNPRINTF_BUF (arg); + } + break; + case TYPE_INT: + { + int arg = a.arg[dp->arg_index].a.a_int; + SNPRINTF_BUF (arg); + } + break; + case TYPE_UINT: + { + unsigned int arg = a.arg[dp->arg_index].a.a_uint; + SNPRINTF_BUF (arg); + } + break; + case TYPE_LONGINT: + { + long int arg = a.arg[dp->arg_index].a.a_longint; + SNPRINTF_BUF (arg); + } + break; + case TYPE_ULONGINT: + { + unsigned long int arg = a.arg[dp->arg_index].a.a_ulongint; + SNPRINTF_BUF (arg); + } + break; +#ifdef HAVE_LONG_LONG + case TYPE_LONGLONGINT: + { + long long int arg = a.arg[dp->arg_index].a.a_longlongint; + SNPRINTF_BUF (arg); + } + break; + case TYPE_ULONGLONGINT: + { + unsigned long long int arg = a.arg[dp->arg_index].a.a_ulonglongint; + SNPRINTF_BUF (arg); + } + break; +#endif + case TYPE_DOUBLE: + { + double arg = a.arg[dp->arg_index].a.a_double; + SNPRINTF_BUF (arg); + } + break; +#ifdef HAVE_LONG_DOUBLE + case TYPE_LONGDOUBLE: + { + long double arg = a.arg[dp->arg_index].a.a_longdouble; + SNPRINTF_BUF (arg); + } + break; +#endif + case TYPE_CHAR: + { + int arg = a.arg[dp->arg_index].a.a_char; + SNPRINTF_BUF (arg); + } + break; +#ifdef HAVE_WINT_T + case TYPE_WIDE_CHAR: + { + wint_t arg = a.arg[dp->arg_index].a.a_wide_char; + SNPRINTF_BUF (arg); + } + break; +#endif + case TYPE_STRING: + { + const char *arg = a.arg[dp->arg_index].a.a_string; + SNPRINTF_BUF (arg); + } + break; +#ifdef HAVE_WCHAR_T + case TYPE_WIDE_STRING: + { + const wchar_t *arg = a.arg[dp->arg_index].a.a_wide_string; + SNPRINTF_BUF (arg); + } + break; +#endif + case TYPE_POINTER: + { + void *arg = a.arg[dp->arg_index].a.a_pointer; + SNPRINTF_BUF (arg); + } + break; + default: + abort (); + } + +#if USE_SNPRINTF + /* Portability: Not all implementations of snprintf() + are ISO C 99 compliant. Determine the number of + bytes that snprintf() has produced or would have + produced. */ + if (count >= 0) + { + /* Verify that snprintf() has NUL-terminated its + result. */ + if (count < maxlen && result[length + count] != '\0') + abort (); + /* Portability hack. */ + if (retcount > count) + count = retcount; + } + else + { + /* snprintf() doesn't understand the '%n' + directive. */ + if (p[1] != '\0') + { + /* Don't use the '%n' directive; instead, look + at the snprintf() return value. */ + p[1] = '\0'; + continue; + } + else + { + /* Look at the snprintf() return value. */ + if (retcount < 0) + { + /* HP-UX 10.20 snprintf() is doubly deficient: + It doesn't understand the '%n' directive, + *and* it returns -1 (rather than the length + that would have been required) when the + buffer is too small. */ + size_t bigger_need = + xsum (xtimes (allocated, 2), 12); + ENSURE_ALLOCATION (bigger_need); + continue; + } + else + count = retcount; + } + } +#endif + + /* Attempt to handle failure. */ + if (count < 0) + { + if (!(result == resultbuf || result == NULL)) + free (result); + if (buf_malloced != NULL) + free (buf_malloced); + CLEANUP (); + errno = EINVAL; + return NULL; + } + +#if !USE_SNPRINTF + if (count >= tmp_length) + /* tmp_length was incorrectly calculated - fix the + code above! */ + abort (); +#endif + + /* Make room for the result. */ + if (count >= maxlen) + { + /* Need at least count bytes. But allocate + proportionally, to avoid looping eternally if + snprintf() reports a too small count. */ + size_t n = + xmax (xsum (length, count), xtimes (allocated, 2)); + + ENSURE_ALLOCATION (n); +#if USE_SNPRINTF + continue; +#endif + } + +#if USE_SNPRINTF + /* The snprintf() result did fit. */ +#else + /* Append the sprintf() result. */ + memcpy (result + length, tmp, count * sizeof (CHAR_T)); + if (tmp != tmpbuf) + free (tmp); +#endif + + length += count; + break; + } + } + } + } + + /* Add the final NUL. */ + ENSURE_ALLOCATION (xsum (length, 1)); + result[length] = '\0'; + + if (result != resultbuf && length + 1 < allocated) + { + /* Shrink the allocated memory if possible. */ + CHAR_T *memory; + + memory = (CHAR_T *) realloc (result, (length + 1) * sizeof (CHAR_T)); + if (memory != NULL) + result = memory; + } + + if (buf_malloced != NULL) + free (buf_malloced); + CLEANUP (); + *lengthp = length; + if (length > INT_MAX) + goto length_overflow; + return result; + + length_overflow: + /* We could produce such a big string, but its length doesn't fit into + an 'int'. POSIX says that snprintf() fails with errno = EOVERFLOW in + this case. */ + if (result != resultbuf) + free (result); + errno = EOVERFLOW; + return NULL; + + out_of_memory: + if (!(result == resultbuf || result == NULL)) + free (result); + if (buf_malloced != NULL) + free (buf_malloced); + out_of_memory_1: + CLEANUP (); + errno = ENOMEM; + return NULL; + } +} + +#undef SNPRINTF +#undef USE_SNPRINTF +#undef PRINTF_PARSE +#undef DIRECTIVES +#undef DIRECTIVE +#undef CHAR_T +#undef VASNPRINTF diff --git a/gl/vasnprintf.h b/gl/vasnprintf.h new file mode 100644 index 000000000..894008cae --- /dev/null +++ b/gl/vasnprintf.h @@ -0,0 +1,77 @@ +/* vsprintf with automatic memory allocation. + Copyright (C) 2002-2004 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _VASNPRINTF_H +#define _VASNPRINTF_H + +/* Get va_list. */ +#include <stdarg.h> + +/* Get size_t. */ +#include <stddef.h> + +#ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ +# define __attribute__(Spec) /* empty */ +# endif +/* The __-protected variants of `format' and `printf' attributes + are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) +# define __format__ format +# define __printf__ printf +# endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* Write formatted output to a string dynamically allocated with malloc(). + You can pass a preallocated buffer for the result in RESULTBUF and its + size in *LENGTHP; otherwise you pass RESULTBUF = NULL. + If successful, return the address of the string (this may be = RESULTBUF + if no dynamic memory allocation was necessary) and set *LENGTHP to the + number of resulting bytes, excluding the trailing NUL. Upon error, set + errno and return NULL. + + When dynamic memory allocation occurs, the preallocated buffer is left + alone (with possibly modified contents). This makes it possible to use + a statically allocated or stack-allocated buffer, like this: + + char buf[100]; + size_t len = sizeof (buf); + char *output = vasnprintf (buf, &len, format, args); + if (output == NULL) + ... error handling ...; + else + { + ... use the output string ...; + if (output != buf) + free (output); + } + */ +extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) + __attribute__ ((__format__ (__printf__, 3, 4))); +extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args) + __attribute__ ((__format__ (__printf__, 3, 0))); + +#ifdef __cplusplus +} +#endif + +#endif /* _VASNPRINTF_H */ diff --git a/gl/vasprintf.c b/gl/vasprintf.c new file mode 100644 index 000000000..149c29242 --- /dev/null +++ b/gl/vasprintf.c @@ -0,0 +1,42 @@ +/* Formatted output to strings. + Copyright (C) 1999, 2002 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +/* Specification. */ +#include "vasprintf.h" + +#include <stdlib.h> + +#include "vasnprintf.h" + +int +vasprintf (char **resultp, const char *format, va_list args) +{ + size_t length; + char *result = vasnprintf (NULL, &length, format, args); + if (result == NULL) + return -1; + + *resultp = result; + /* Return the number of resulting bytes, excluding the trailing NUL. + If it wouldn't fit in an 'int', vasnprintf() would have returned NULL + and set errno to EOVERFLOW. */ + return length; +} diff --git a/gl/vasprintf.h b/gl/vasprintf.h new file mode 100644 index 000000000..d02f15451 --- /dev/null +++ b/gl/vasprintf.h @@ -0,0 +1,63 @@ +/* vsprintf with automatic memory allocation. + Copyright (C) 2002-2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _VASPRINTF_H +#define _VASPRINTF_H + +#if HAVE_VASPRINTF + +/* Get asprintf(), vasprintf() declarations. */ +#include <stdio.h> + +#else + +/* Get va_list. */ +#include <stdarg.h> + +#ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ +# define __attribute__(Spec) /* empty */ +# endif +/* The __-protected variants of `format' and `printf' attributes + are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) +# define __format__ format +# define __printf__ printf +# endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* Write formatted output to a string dynamically allocated with malloc(). + If the memory allocation succeeds, store the address of the string in + *RESULT and return the number of resulting bytes, excluding the trailing + NUL. Upon memory allocation error, or some other error, return -1. */ +extern int asprintf (char **result, const char *format, ...) + __attribute__ ((__format__ (__printf__, 2, 3))); +extern int vasprintf (char **result, const char *format, va_list args) + __attribute__ ((__format__ (__printf__, 2, 0))); + +#ifdef __cplusplus +} +#endif + +#endif + +#endif /* _VASPRINTF_H */ diff --git a/gl/xsize.h b/gl/xsize.h new file mode 100644 index 000000000..341fb16ca --- /dev/null +++ b/gl/xsize.h @@ -0,0 +1,108 @@ +/* xsize.h -- Checked size_t computations. + + Copyright (C) 2003 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _XSIZE_H +#define _XSIZE_H + +/* Get size_t. */ +#include <stddef.h> + +/* Get SIZE_MAX. */ +#include <limits.h> +#if HAVE_STDINT_H +# include <stdint.h> +#endif + +/* The size of memory objects is often computed through expressions of + type size_t. Example: + void* p = malloc (header_size + n * element_size). + These computations can lead to overflow. When this happens, malloc() + returns a piece of memory that is way too small, and the program then + crashes while attempting to fill the memory. + To avoid this, the functions and macros in this file check for overflow. + The convention is that SIZE_MAX represents overflow. + malloc (SIZE_MAX) is not guaranteed to fail -- think of a malloc + implementation that uses mmap --, it's recommended to use size_overflow_p() + or size_in_bounds_p() before invoking malloc(). + The example thus becomes: + size_t size = xsum (header_size, xtimes (n, element_size)); + void *p = (size_in_bounds_p (size) ? malloc (size) : NULL); +*/ + +/* Convert an arbitrary value >= 0 to type size_t. */ +#define xcast_size_t(N) \ + ((N) <= SIZE_MAX ? (size_t) (N) : SIZE_MAX) + +/* Sum of two sizes, with overflow check. */ +static inline size_t +#if __GNUC__ >= 3 +__attribute__ ((__pure__)) +#endif +xsum (size_t size1, size_t size2) +{ + size_t sum = size1 + size2; + return (sum >= size1 ? sum : SIZE_MAX); +} + +/* Sum of three sizes, with overflow check. */ +static inline size_t +#if __GNUC__ >= 3 +__attribute__ ((__pure__)) +#endif +xsum3 (size_t size1, size_t size2, size_t size3) +{ + return xsum (xsum (size1, size2), size3); +} + +/* Sum of four sizes, with overflow check. */ +static inline size_t +#if __GNUC__ >= 3 +__attribute__ ((__pure__)) +#endif +xsum4 (size_t size1, size_t size2, size_t size3, size_t size4) +{ + return xsum (xsum (xsum (size1, size2), size3), size4); +} + +/* Maximum of two sizes, with overflow check. */ +static inline size_t +#if __GNUC__ >= 3 +__attribute__ ((__pure__)) +#endif +xmax (size_t size1, size_t size2) +{ + /* No explicit check is needed here, because for any n: + max (SIZE_MAX, n) == SIZE_MAX and max (n, SIZE_MAX) == SIZE_MAX. */ + return (size1 >= size2 ? size1 : size2); +} + +/* Multiplication of a count with an element size, with overflow check. + The count must be >= 0 and the element size must be > 0. + This is a macro, not an inline function, so that it works correctly even + when N is of a wider tupe and N > SIZE_MAX. */ +#define xtimes(N, ELSIZE) \ + ((N) <= SIZE_MAX / (ELSIZE) ? (size_t) (N) * (ELSIZE) : SIZE_MAX) + +/* Check for overflow. */ +#define size_overflow_p(SIZE) \ + ((SIZE) == SIZE_MAX) +/* Check against overflow. */ +#define size_in_bounds_p(SIZE) \ + ((SIZE) != SIZE_MAX) + +#endif /* _XSIZE_H */ |