See ChangeLog: Wed Dec 8 21:58:32 CET 1999 Werner Koch

13 files changed, 773 insertions, 169 deletions

diff --git a/util/ChangeLog b/util/ChangeLog
index ea9c7f3fe..aadb8b4d0 100644
--- a/util/ChangeLog
+++ b/util/ChangeLog
@@ -1,3 +1,21 @@
+Wed Dec  8 21:58:32 CET 1999  Werner Koch  <[email protected]>
+
+	* strgutil.c (strcasecmp): New.
+
+	* argparse.h: New.
+	* libutil.h: New.
+	* argparse.c: Use these new files.
+	(optfile_parse): s/m_alloc/libutil_xalloc/
+
+	* strgutil.c: Moved a lot of function to ...
+	* stringhelp.c: ... this new file
+	* stringhelp.h: ... and the definitions to here
+
+	* mischelp.h: New.
+
+	* logging.h: New, but not yet used in GnuPG.
+	* logging.c: Ditto.
+
 Fri Nov 19 17:15:20 CET 1999  Werner Koch  <[email protected]>
 
 	* argparse.c (default_strusage): Renamed to strusage. Fall back
diff --git a/util/Makefile.am b/util/Makefile.am
index c695db586..acb8f05cb 100644
--- a/util/Makefile.am
+++ b/util/Makefile.am
@@ -1,5 +1,8 @@
 ## Process this file with automake to produce Makefile.in
 
+# Those 2 files are in the CVS but currently not used.
+EXTRA_DIST = xmalloc.c xmalloc.h logging.c logging.c
+
 INCLUDES = -I$(top_srcdir)/include -I$(top_srcdir)/intl
 
 noinst_LTLIBRARIES = libutil.la
@@ -7,8 +10,12 @@ noinst_LTLIBRARIES = libutil.la
 
 libutil_la_LDFLAGS =
 libutil_la_SOURCES = logger.c fileutil.c miscutil.c strgutil.c	\
-		     ttyio.c  argparse.c memory.c secmem.c errors.c iobuf.c \
-		     dotlock.c http.c simple-gettext.c
+		     ttyio.c  memory.c secmem.c errors.c iobuf.c \
+		     dotlock.c http.c simple-gettext.c \
+		     libutil-config.h  \
+		     mischelp.h \
+		     stringhelp.h stringhelp.c \
+		     argparse.h argparse.c
 
 
 http-test:  http.c
@@ -17,3 +24,5 @@ http-test:  http.c
 
 
 
+
+
diff --git a/util/argparse.c b/util/argparse.c
index 12b0ebd7f..ba51980a9 100644
--- a/util/argparse.c
+++ b/util/argparse.c
@@ -15,9 +15,6 @@
  *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- *
- * Note: This is an independent version of the one in WkLib
  */
 
 #include <config.h>
@@ -26,8 +23,13 @@
 #include <ctype.h>
 #include <string.h>
 
-#include "util.h"
-#include "i18n.h"
+#include "libutil-config.h"
+#include "mischelp.h"
+#include "stringhelp.h"
+#ifndef LIBUTIL_CONFIG_OF_GNUPG
+  #include "logging.h"  /* currently not used in GnUPG */
+#endif
+#include "argparse.h"
 
 
 /*********************************
@@ -155,7 +157,7 @@ initialize( ARGPARSE_ARGS *arg, const char *filename, unsigned *lineno )
 	arg->err = 0;
 	arg->flags |= 1<<15; /* mark initialized */
 	if( *arg->argc < 0 )
-	    log_bug("Invalid argument for ArgParse\n");
+	    libutil_log_bug("Invalid argument for ArgParse\n");
     }
 
 
@@ -177,7 +179,7 @@ initialize( ARGPARSE_ARGS *arg, const char *filename, unsigned *lineno )
 		s = "%s:%u: invalid alias definition\n";
 	    else
 		s = "%s:%u: invalid option\n";
-	    log_error(s, filename, *lineno );
+	    libutil_log_error(s, filename, *lineno );
 	}
 	else {
 	    if( arg->r_opt == -3 )
@@ -192,7 +194,7 @@ initialize( ARGPARSE_ARGS *arg, const char *filename, unsigned *lineno )
 		s = "Command \"%.50s\" is ambiguous\n";
 	    else
 		s = "Invalid option \"%.50s\"\n";
-	    log_error(s, arg->internal.last? arg->internal.last:"[??]" );
+	    libutil_log_error(s, arg->internal.last? arg->internal.last:"[??]" );
 	}
 	if( arg->err != 1 )
 	    exit(2);
@@ -306,7 +308,7 @@ optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
 			    trim_spaces( p );
 			}
 			if( !p || !*p ) {
-			    m_free( buffer );
+			    libutil_free( buffer );
 			    arg->r_opt = -10;
 			}
 			else {
@@ -320,7 +322,7 @@ optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
 		    char *p;
 		    if( !buffer ) {
 			keyword[i] = 0;
-			buffer = m_strdup(keyword);
+			buffer = libutil_strdup(keyword);
 		    }
 		    else
 			buffer[i] = 0;
@@ -333,7 +335,7 @@ optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
 			    p[strlen(p)-1] = 0;
 		    }
 		    if( !set_opt_arg(arg, opts[idx].flags, p) )
-			m_free(buffer);
+			libutil_free(buffer);
 		}
 		break;
 	    }
@@ -388,7 +390,7 @@ optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
 		    buffer[i++] = c;
 		else {
 		    buflen += 50;
-		    buffer = m_realloc(buffer, buflen);
+		    buffer = libutil_realloc(buffer, buflen);
 		    buffer[i++] = c;
 		}
 	    }
@@ -396,7 +398,7 @@ optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
 		keyword[i++] = c;
 	    else {
 		buflen = DIM(keyword)+50;
-		buffer = m_alloc(buflen);
+		buffer = libutil_xmalloc(buflen);
 		memcpy(buffer, keyword, i);
 		buffer[i++] = c;
 	    }
diff --git a/util/argparse.h b/util/argparse.h
new file mode 100644
index 000000000..12132edd3
--- /dev/null
+++ b/util/argparse.h
@@ -0,0 +1,64 @@
+/* argparse.h
+ *	Copyright (C) 1998,1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#ifndef LIBUTIL_ARGPARSE_H
+#define LIBUTIL_ARGPARSE_H
+
+typedef struct {
+     int  *argc;	    /* pointer to argc (value subject to change) */
+     char ***argv;	    /* pointer to argv (value subject to change) */
+     unsigned flags;	    /* Global flags (DO NOT CHANGE) */
+     int err;		    /* print error about last option */
+			    /* 1 = warning, 2 = abort */
+     int r_opt; 	    /* return option */
+     int r_type;	    /* type of return value (0 = no argument found)*/
+     union {
+	 int   ret_int;
+	 long  ret_long;
+	 ulong ret_ulong;
+	 char *ret_str;
+     } r;		    /* Return values */
+     struct {
+	 int idx;
+	 int inarg;
+	 int stopped;
+	 const char *last;
+	 void *aliases;
+	 const void *cur_alias;
+     } internal;	    /* DO NOT CHANGE */
+} ARGPARSE_ARGS;
+
+typedef struct {
+    int 	short_opt;
+    const char *long_opt;
+    unsigned flags;
+    const char *description; /* optional option description */
+} ARGPARSE_OPTS;
+
+
+
+int arg_parse( ARGPARSE_ARGS *arg, ARGPARSE_OPTS *opts);
+int optfile_parse( FILE *fp, const char *filename, unsigned *lineno,
+		   ARGPARSE_ARGS *arg, ARGPARSE_OPTS *opts);
+void usage( int level );
+const char *strusage( int level );
+void set_strusage( const char *(*f)( int ) );
+
+#endif /*LIBUTIL_ARGPARSE_H*/
diff --git a/util/libutil-config.h b/util/libutil-config.h
new file mode 100644
index 000000000..a4c80115b
--- /dev/null
+++ b/util/libutil-config.h
@@ -0,0 +1,56 @@
+/* libutil-config.h - configuration of the libutil functions
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/****************
+ * This header is to be included only by the files in this directory
+ * it should not be used by other modules.
+ */
+
+#ifndef LIBUTIL_CONFIG_H
+#define LIBUTIL_CONFIG_H
+
+#define LIBUTIL_CONFIG_OF_GNUPG 1  /* currently we need this kludge */
+
+#include <sys/types.h>
+
+#ifndef HAVE_BYTE_TYPEDEF
+  #undef byte	    /* (this matches the test used by configure) */
+  typedef unsigned char byte;
+  #define HAVE_BYTE_TYPEDEF
+#endif
+
+#include "types.h"
+#include "memory.h"
+#include "util.h"
+#include "i18n.h"
+
+#define libutil_xmalloc(a)   m_alloc( (a) )
+#define libutil_realloc(a,n) m_realloc( (a), (n) )
+#define libutil_strdup(a)    m_strdup( (a) )
+#define libutil_free(a)      m_free( (a) )
+
+#define libutil_log_debug    log_debug
+#define libutil_log_info     log_info
+#define libutil_log_error    log_error
+#define libutil_log_fatal    log_fatal
+#define libutil_log_bug      log_bug
+
+
+#endif /*LIBUTIL_CONFIGH*/
diff --git a/util/logging.c b/util/logging.c
new file mode 100644
index 000000000..76931f9be
--- /dev/null
+++ b/util/logging.c
@@ -0,0 +1,170 @@
+/* logging.c -	useful logging functions
+ *	Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+
+/* This file should replace logger.c in the future - for now it is not
+ * used GnuPG.
+ * It is a quite simple implemenation but sufficient for most purposes.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "libutil-config.h"
+#include "logging.h"
+
+enum my_log_levels {
+    MY_LOG_CONT,
+    MY_LOG_INFO,
+    MY_LOG_WARN,
+    MY_LOG_ERROR,
+    MY_LOG_FATAL,
+    MY_LOG_BUG,
+    MY_LOG_DEBUG
+};
+
+
+#if 0
+static void
+write2stderr( const char *s )
+{
+    write( 2, s, strlen(s) );
+}
+
+
+static void
+do_die(int rc, const char *text )
+{
+    write2stderr("\nFatal error: ");
+    write2stderr(text);
+    write2stderr("\n");
+    abort();
+}
+#endif
+
+
+static void
+do_logv( int level, const char *fmt, va_list arg_ptr )
+{
+    switch ( level ) {
+      case MY_LOG_CONT: break;
+      case MY_LOG_INFO: break;
+      case MY_LOG_WARN: break;
+      case MY_LOG_ERROR: break;
+      case MY_LOG_FATAL: fputs("Fatal: ",stderr ); break;
+      case MY_LOG_BUG: fputs("Ohhhh jeeee: ", stderr); break;
+      case MY_LOG_DEBUG: fputs("DBG: ", stderr ); break;
+      default: fprintf(stderr,"[Unknown log level %d]: ", level ); break;
+    }
+    vfprintf(stderr,fmt,arg_ptr) ;
+
+    if( level == MY_LOG_FATAL )
+	exit(2);
+    if( level == MY_LOG_BUG )
+	abort();
+}
+
+static void
+do_log( int level, const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( level, fmt, arg_ptr );
+    va_end(arg_ptr);
+}
+
+
+
+void
+log_info( const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( MY_LOG_INFO, fmt, arg_ptr );
+    va_end(arg_ptr);
+}
+
+void
+log_error( const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( MY_LOG_ERROR, fmt, arg_ptr );
+    va_end(arg_ptr);
+}
+
+
+void
+log_fatal( const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( MY_LOG_FATAL, fmt, arg_ptr );
+    va_end(arg_ptr);
+    abort(); /* never called, bugs it makes the compiler happy */
+}
+
+void
+log_bug( const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( MY_LOG_BUG, fmt, arg_ptr );
+    va_end(arg_ptr);
+    abort(); /* never called, bugs it makes the compiler happy */
+}
+
+void
+log_debug( const char *fmt, ... )
+{
+    va_list arg_ptr ;
+
+    va_start( arg_ptr, fmt ) ;
+    do_logv( MY_LOG_DEBUG, fmt, arg_ptr );
+    va_end(arg_ptr);
+}
+
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
+void
+bug_at( const char *file, int line, const char *func )
+{
+    do_log( MY_LOG_BUG,
+	     ("... this is a bug (%s:%d:%s)\n"), file, line, func );
+    abort(); /* never called, but it makes the compiler happy */
+}
+#else
+void
+bug_at( const char *file, int line )
+{
+    do_log( MY_LOG_BUG,
+	     _("you found a bug ... (%s:%d)\n"), file, line);
+    abort(); /* never called, but it makes the compiler happy */
+}
+#endif
+
diff --git a/util/logging.h b/util/logging.h
new file mode 100644
index 000000000..961751b52
--- /dev/null
+++ b/util/logging.h
@@ -0,0 +1,41 @@
+/* logging.h
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#ifndef LIBUTIL_LOGGING_H
+#define LIBUTIL_LOGGING_H
+
+#include "mischelp.h"
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
+  void bug_at( const char *file, int line, const char *func ) LIBUTIL_GCC_A_NR;
+# define BUG() bug_at( __FILE__ , __LINE__, __FUNCTION__ )
+#else
+  void bug_at( const char *file, int line );
+# define BUG() bug_at( __FILE__ , __LINE__ )
+#endif
+
+void log_bug( const char *fmt, ... )   LIBUTIL_GCC_A_NR_PRINTF(1,2);
+void log_fatal( const char *fmt, ... ) LIBUTIL_GCC_A_NR_PRINTF(1,2);
+void log_error( const char *fmt, ... ) LIBUTIL_GCC_A_PRINTF(1,2);
+void log_info( const char *fmt, ... )  LIBUTIL_GCC_A_PRINTF(1,2);
+void log_debug( const char *fmt, ... ) LIBUTIL_GCC_A_PRINTF(1,2);
+
+
+#endif /*LIBUTIL_LOGGING_H*/
diff --git a/util/mischelp.h b/util/mischelp.h
new file mode 100644
index 000000000..1c83da1be
--- /dev/null
+++ b/util/mischelp.h
@@ -0,0 +1,42 @@
+/* mischelp.h
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#ifndef LIBUTIL_MISCHELP_H
+#define LIBUTIL_MISCHHELP_H
+
+
+#define DIM(v)		     (sizeof(v)/sizeof((v)[0]))
+#define DIMof(type,member)   DIM(((type *)0)->member)
+
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
+# define LIBUTIL_GCC_A_NR	       __attribute__ ((noreturn))
+# define LIBUTIL_GCC_A_PRINTF( f, a )  __attribute__ ((format (printf,f,a)))
+# define LIBUTIL_GCC_A_NR_PRINTF( f, a ) \
+			    __attribute__ ((noreturn, format (printf,f,a)))
+#else
+# define LIBUTIL_GCC_A_NR
+# define LIBUTIL_GCC_A_PRINTF( f, a )
+# define LIBUTIL_GCC_A_NR_PRINTF( f, a )
+#endif
+
+
+
+#endif /*LIBUTIL_MISCHELP_H*/
diff --git a/util/strgutil.c b/util/strgutil.c
index ea9527bd8..a20ba2c75 100644
--- a/util/strgutil.c
+++ b/util/strgutil.c
@@ -189,117 +189,6 @@ strlist_last( STRLIST node )
 
 
 
-/****************
- * look for the substring SUB in buffer and return a pointer to that
- * substring in BUF or NULL if not found.
- * Comparison is case-insensitive.
- */
-const char *
-memistr( const char *buf, size_t buflen, const char *sub )
-{
-    const byte *t, *s ;
-    size_t n;
-
-    for( t=buf, n=buflen, s=sub ; n ; t++, n-- )
-	if( toupper(*t) == toupper(*s) ) {
-	    for( buf=t++, buflen = n--, s++;
-		 n && toupper(*t) == toupper(*s); t++, s++, n-- )
-		;
-	    if( !*s )
-		return buf;
-	    t = buf; n = buflen; s = sub ;
-	}
-
-    return NULL ;
-}
-
-/****************
- * Wie strncpy(), aber es werden maximal n-1 zeichen kopiert und ein
- * '\0' angeh�ngt. Ist n = 0, so geschieht nichts, ist Destination
- * gleich NULL, so wird via m_alloc Speicher besorgt, ist dann nicht
- * gen�gend Speicher vorhanden, so bricht die funktion ab.
- */
-char *
-mem2str( char *dest , const void *src , size_t n )
-{
-    char *d;
-    const char *s;
-
-    if( n ) {
-	if( !dest )
-	    dest = m_alloc( n ) ;
-	d = dest;
-	s = src ;
-	for(n--; n && *s; n-- )
-	    *d++ = *s++;
-	*d = '\0' ;
-    }
-
-    return dest ;
-}
-
-
-/****************
- * remove leading and trailing white spaces
- */
-char *
-trim_spaces( char *str )
-{
-    char *string, *p, *mark;
-
-    string = str;
-    /* find first non space character */
-    for( p=string; *p && isspace( *(byte*)p ) ; p++ )
-	;
-    /* move characters */
-    for( (mark = NULL); (*string = *p); string++, p++ )
-	if( isspace( *(byte*)p ) ) {
-	    if( !mark )
-		mark = string ;
-	}
-	else
-	    mark = NULL ;
-    if( mark )
-	*mark = '\0' ;  /* remove trailing spaces */
-
-    return str ;
-}
-
-
-
-unsigned
-trim_trailing_chars( byte *line, unsigned len, const char *trimchars )
-{
-    byte *p, *mark;
-    unsigned n;
-
-    for(mark=NULL, p=line, n=0; n < len; n++, p++ ) {
-	if( strchr(trimchars, *p ) ) {
-	    if( !mark )
-		mark = p;
-	}
-	else
-	    mark = NULL;
-    }
-
-    if( mark ) {
-	*mark = 0;
-	return mark - line;
-    }
-    return len;
-}
-
-/****************
- * remove trailing white spaces and return the length of the buffer
- */
-unsigned
-trim_trailing_ws( byte *line, unsigned len )
-{
-    return trim_trailing_chars( line, len, " \t\r\n" );
-}
-
-
-
 int
 string_count_chr( const char *string, int c )
 {
@@ -606,46 +495,3 @@ utf8_to_native( const char *string, size_t length )
 }
 
 
-
-/*********************************************
- ********** missing string functions *********
- *********************************************/
-
-#ifndef HAVE_STPCPY
-char *
-stpcpy(char *a,const char *b)
-{
-    while( *b )
-	*a++ = *b++;
-    *a = 0;
-
-    return (char*)a;
-}
-#endif
-
-#ifndef HAVE_STRLWR
-char *
-strlwr(char *s)
-{
-    char *p;
-    for(p=s; *p; p++ )
-	*p = tolower(*p);
-    return s;
-}
-#endif
-
-/****************
- * mingw32/cpd has a memicmp()
- */
-#ifndef HAVE_MEMICMP
-int
-memicmp( const char *a, const char *b, size_t n )
-{
-    for( ; n; n--, a++, b++ )
-	if( *a != *b  && toupper(*(const byte*)a) != toupper(*(const byte*)b) )
-	    return *(const byte *)a - *(const byte*)b;
-    return 0;
-}
-#endif
-
-
diff --git a/util/stringhelp.c b/util/stringhelp.c
new file mode 100644
index 000000000..16908f9a3
--- /dev/null
+++ b/util/stringhelp.c
@@ -0,0 +1,197 @@
+/* stringhelp.c -  standard string helper functions
+ *	Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "libutil-config.h"
+#include "stringhelp.h"
+
+
+/****************
+ * look for the substring SUB in buffer and return a pointer to that
+ * substring in BUF or NULL if not found.
+ * Comparison is case-insensitive.
+ */
+const char *
+memistr( const char *buf, size_t buflen, const char *sub )
+{
+    const byte *t, *s ;
+    size_t n;
+
+    for( t=buf, n=buflen, s=sub ; n ; t++, n-- )
+	if( toupper(*t) == toupper(*s) ) {
+	    for( buf=t++, buflen = n--, s++;
+		 n && toupper(*t) == toupper(*s); t++, s++, n-- )
+		;
+	    if( !*s )
+		return buf;
+	    t = buf; n = buflen; s = sub ;
+	}
+
+    return NULL ;
+}
+
+/****************
+ * Wie strncpy(), aber es werden maximal n-1 zeichen kopiert und ein
+ * '\0' angeh�ngt. Ist n = 0, so geschieht nichts, ist Destination
+ * gleich NULL, so wird via libutil_malloc Speicher besorgt, ist dann nicht
+ * gen�gend Speicher vorhanden, so bricht die funktion ab.
+ */
+char *
+mem2str( char *dest , const void *src , size_t n )
+{
+    char *d;
+    const char *s;
+
+    if( n ) {
+	if( !dest )
+	    dest = libutil_xmalloc( n ) ;
+	d = dest;
+	s = src ;
+	for(n--; n && *s; n-- )
+	    *d++ = *s++;
+	*d = '\0' ;
+    }
+
+    return dest ;
+}
+
+
+/****************
+ * remove leading and trailing white spaces
+ */
+char *
+trim_spaces( char *str )
+{
+    char *string, *p, *mark;
+
+    string = str;
+    /* find first non space character */
+    for( p=string; *p && isspace( *(byte*)p ) ; p++ )
+	;
+    /* move characters */
+    for( (mark = NULL); (*string = *p); string++, p++ )
+	if( isspace( *(byte*)p ) ) {
+	    if( !mark )
+		mark = string ;
+	}
+	else
+	    mark = NULL ;
+    if( mark )
+	*mark = '\0' ;  /* remove trailing spaces */
+
+    return str ;
+}
+
+
+
+unsigned
+trim_trailing_chars( byte *line, unsigned len, const char *trimchars )
+{
+    byte *p, *mark;
+    unsigned n;
+
+    for(mark=NULL, p=line, n=0; n < len; n++, p++ ) {
+	if( strchr(trimchars, *p ) ) {
+	    if( !mark )
+		mark = p;
+	}
+	else
+	    mark = NULL;
+    }
+
+    if( mark ) {
+	*mark = 0;
+	return mark - line;
+    }
+    return len;
+}
+
+/****************
+ * remove trailing white spaces and return the length of the buffer
+ */
+unsigned
+trim_trailing_ws( byte *line, unsigned len )
+{
+    return trim_trailing_chars( line, len, " \t\r\n" );
+}
+
+
+
+/*********************************************
+ ********** missing string functions *********
+ *********************************************/
+
+#ifndef HAVE_STPCPY
+char *
+stpcpy(char *a,const char *b)
+{
+    while( *b )
+	*a++ = *b++;
+    *a = 0;
+
+    return (char*)a;
+}
+#endif
+
+#ifndef HAVE_STRLWR
+char *
+strlwr(char *s)
+{
+    char *p;
+    for(p=s; *p; p++ )
+	*p = tolower(*p);
+    return s;
+}
+#endif
+
+
+#ifndef HAVE_STRCASECMP
+int
+strcasecmp( const char *a, const char *b )
+{
+    for( ; *a && *b; a++, b++ ) {
+	if( *a != *b && toupper(*a) != toupper(*b) )
+	    break;
+    }
+    return *(const byte*)a - *(const byte*)b;
+}
+#endif
+
+
+/****************
+ * mingw32/cpd has a memicmp()
+ */
+#ifndef HAVE_MEMICMP
+int
+memicmp( const char *a, const char *b, size_t n )
+{
+    for( ; n; n--, a++, b++ )
+	if( *a != *b  && toupper(*(const byte*)a) != toupper(*(const byte*)b) )
+	    return *(const byte *)a - *(const byte*)b;
+    return 0;
+}
+#endif
+
+
+
diff --git a/util/stringhelp.h b/util/stringhelp.h
new file mode 100644
index 000000000..98b3ad551
--- /dev/null
+++ b/util/stringhelp.h
@@ -0,0 +1,59 @@
+/* stringhelp.h
+ *	Copyright (C) 1998,1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#ifndef LIBUTIL_STRINGHELP_H
+#define LIBUTIL_STRINGHELP_H
+
+
+const char *memistr( const char *buf, size_t buflen, const char *sub );
+char *mem2str( char *, const void *, size_t);
+char *trim_spaces( char *string );
+unsigned int trim_trailing_chars( byte *line, unsigned len,
+					      const char *trimchars);
+unsigned int trim_trailing_ws( byte *line, unsigned len );
+
+
+#ifndef HAVE_MEMICMP
+int memicmp( const char *a, const char *b, size_t n );
+#endif
+#ifndef HAVE_STPCPY
+char *stpcpy(char *a,const char *b);
+#endif
+#ifndef HAVE_STRLWR
+char *strlwr(char *a);
+#endif
+#ifndef HAVE_STRTOUL
+  #define strtoul(a,b,c)  ((unsigned long)strtol((a),(b),(c)))
+#endif
+#ifndef HAVE_MEMMOVE
+  #define memmove(d, s, n) bcopy((s), (d), (n))
+#endif
+#ifndef HAVE_STRICMP
+  #define stricmp(a,b)	 strcasecmp( (a), (b) )
+#endif
+
+
+#ifndef STR
+  #define STR(v) #v
+#endif
+#define STR2(v) STR(v)
+
+
+#endif /*LIBUTIL_STRINGHELP_H*/
diff --git a/util/xmalloc.c b/util/xmalloc.c
new file mode 100644
index 000000000..21e23d0dc
--- /dev/null
+++ b/util/xmalloc.c
@@ -0,0 +1,70 @@
+/* xmalloc.c -	standard malloc wrappers
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "libutil-config.h"
+#include "xmalloc.h"
+
+static void
+out_of_core(void)
+{
+    fputs("\nfatal: out of memory\n", stderr );
+    exit(2);
+}
+
+
+void *
+xmalloc( size_t n )
+{
+    void *p = malloc( n );
+    if( !p )
+	out_of_core();
+    return p;
+}
+
+void *
+xrealloc( void *a, size_t n )
+{
+    void *p = realloc( a, n );
+    if( !p )
+	out_of_core();
+    return p;
+}
+
+void *
+xcalloc( size_t n, size_t m )
+{
+    void *p = calloc( n, m );
+    if( !p )
+	out_of_core();
+    return p;
+}
+
+char *
+xstrdup( const char *string )
+{
+    void *p = xmalloc( strlen(string)+1 );
+    strcpy( p, string );
+    return p;
+}
+
diff --git a/util/xmalloc.h b/util/xmalloc.h
new file mode 100644
index 000000000..4a33d36a5
--- /dev/null
+++ b/util/xmalloc.h
@@ -0,0 +1,30 @@
+/* xmalloc.h
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#ifndef LIBUTIL_XMALLOC_H
+#define LIBUTIL_XMALLOC_H
+
+void *xmalloc( size_t n );
+void *xrealloc( void *a, size_t n );
+void *xcalloc( size_t n, size_t m );
+char *xstrdup( const char *string );
+
+
+#endif /*LIBUTIL_XMALLOC_H*/