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-rw-r--r--common/simple-gettext.c447
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diff --git a/common/simple-gettext.c b/common/simple-gettext.c
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-/* simple-gettext.c - a simplified version of gettext.
- * Copyright (C) 1995, 1996, 1997, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * USA.
- */
-
-/* This is a simplified version of gettext written by Ulrich Drepper.
- * It is used for the Win32 version of GnuPG beucase all the overhead
- * of gettext is not needed and we have to do some special Win32 stuff.
- * I decided that this is far easier than to tweak gettext for the special
- * cases (I tried it but it is a lot of code). wk 15.09.99
- */
-
-#include <config.h>
-#ifdef USE_SIMPLE_GETTEXT
-#if !defined (_WIN32) && !defined (__CYGWIN32__)
-#error This file can only be used under Windows or Cygwin32
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include "util.h"
-#include "sysutils.h"
-
-/* The magic number of the GNU message catalog format. */
-#define MAGIC 0x950412de
-#define MAGIC_SWAPPED 0xde120495
-
-/* Revision number of the currently used .mo (binary) file format. */
-#define MO_REVISION_NUMBER 0
-
-
-/* Header for binary .mo file format. */
-struct mo_file_header
-{
- /* The magic number. */
- u32 magic;
- /* The revision number of the file format. */
- u32 revision;
- /* The number of strings pairs. */
- u32 nstrings;
- /* Offset of table with start offsets of original strings. */
- u32 orig_tab_offset;
- /* Offset of table with start offsets of translation strings. */
- u32 trans_tab_offset;
- /* Size of hashing table. */
- u32 hash_tab_size;
- /* Offset of first hashing entry. */
- u32 hash_tab_offset;
-};
-
-struct string_desc
-{
- /* Length of addressed string. */
- u32 length;
- /* Offset of string in file. */
- u32 offset;
-};
-
-
-struct overflow_space_s
-{
- struct overflow_space_s *next;
- u32 idx;
- char d[1];
-};
-
-struct loaded_domain
-{
- char *data;
- int must_swap;
- u32 nstrings;
- char *mapped; /* 0 = not yet mapped, 1 = mapped,
- 2 = mapped to
- overflow space */
- struct overflow_space_s *overflow_space;
- struct string_desc *orig_tab;
- struct string_desc *trans_tab;
- u32 hash_size;
- u32 *hash_tab;
-};
-
-
-static struct loaded_domain *the_domain;
-
-static __inline__ u32
-do_swap_u32( u32 i )
-{
- return (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24);
-}
-
-#define SWAPIT(flag, data) ((flag) ? do_swap_u32(data) : (data) )
-
-
-/* We assume to have `unsigned long int' value with at least 32 bits. */
-#define HASHWORDBITS 32
-
-/* The so called `hashpjw' function by P.J. Weinberger
- [see Aho/Sethi/Ullman, COMPILERS: Principles, Techniques and Tools,
- 1986, 1987 Bell Telephone Laboratories, Inc.] */
-
-static __inline__ ulong
-hash_string( const char *str_param )
-{
- unsigned long int hval, g;
- const char *str = str_param;
-
- hval = 0;
- while (*str != '\0')
- {
- hval <<= 4;
- hval += (unsigned long int) *str++;
- g = hval & ((unsigned long int) 0xf << (HASHWORDBITS - 4));
- if (g != 0)
- {
- hval ^= g >> (HASHWORDBITS - 8);
- hval ^= g;
- }
- }
- return hval;
-}
-
-
-static struct loaded_domain *
-load_domain( const char *filename )
-{
- FILE *fp;
- size_t size;
- struct stat st;
- struct mo_file_header *data = NULL;
- struct loaded_domain *domain = NULL;
- size_t to_read;
- char *read_ptr;
-
- fp = fopen( filename, "rb" );
- if( !fp )
- return NULL; /* can't open the file */
- /* we must know about the size of the file */
- if( fstat( fileno(fp ), &st )
- || (size = (size_t)st.st_size) != st.st_size
- || size < sizeof (struct mo_file_header) ) {
- fclose( fp );
- return NULL;
- }
-
- data = malloc( size );
- if( !data ) {
- fclose( fp );
- return NULL; /* out of memory */
- }
-
- to_read = size;
- read_ptr = (char *) data;
- do {
- long int nb = fread( read_ptr, 1, to_read, fp );
- if( nb < to_read ) {
- fclose (fp);
- free(data);
- return NULL; /* read error */
- }
- read_ptr += nb;
- to_read -= nb;
- } while( to_read > 0 );
- fclose (fp);
-
- /* Using the magic number we can test whether it really is a message
- * catalog file. */
- if( data->magic != MAGIC && data->magic != MAGIC_SWAPPED ) {
- /* The magic number is wrong: not a message catalog file. */
- free( data );
- return NULL;
- }
-
- domain = calloc( 1, sizeof *domain );
- if( !domain ) {
- free( data );
- return NULL;
- }
- domain->data = (char *) data;
- domain->must_swap = data->magic != MAGIC;
-
- /* Fill in the information about the available tables. */
- switch( SWAPIT(domain->must_swap, data->revision) ) {
- case 0:
- domain->nstrings = SWAPIT(domain->must_swap, data->nstrings);
- domain->orig_tab = (struct string_desc *)
- ((char *) data + SWAPIT(domain->must_swap, data->orig_tab_offset));
- domain->trans_tab = (struct string_desc *)
- ((char *) data + SWAPIT(domain->must_swap, data->trans_tab_offset));
- domain->hash_size = SWAPIT(domain->must_swap, data->hash_tab_size);
- domain->hash_tab = (u32 *)
- ((char *) data + SWAPIT(domain->must_swap, data->hash_tab_offset));
- break;
-
- default: /* This is an invalid revision. */
- free( data );
- free( domain );
- return NULL;
- }
-
- /* Allocate an array to keep track of code page mappings. */
- domain->mapped = calloc( 1, domain->nstrings );
- if( !domain->mapped ) {
- free( data );
- free( domain );
- return NULL;
- }
-
- return domain;
-}
-
-
-/****************
- * Set the file used for translations. Pass a NULL to disable
- * translation. A new filename may be set at anytime.
- * WARNING: After changing the filename you should not access any data
- * retrieved by gettext().
- */
-int
-set_gettext_file( const char *filename )
-{
- struct loaded_domain *domain = NULL;
-
- if( filename && *filename ) {
- if( filename[0] == '/'
-#ifdef HAVE_DRIVE_LETTERS
- || ( isalpha(filename[0])
- && filename[1] == ':'
- && (filename[2] == '/' || filename[2] == '\\') )
-#endif
- ) {
- /* absolute path - use it as is */
- domain = load_domain( filename );
- }
- else { /* relative path - append ".mo" and get dir from the environment */
- char *buf = NULL;
- char *dir;
- char *p;
-
- dir = read_w32_registry_string( NULL,
- "Control Panel\\Mingw32\\NLS",
- "MODir" );
- if( dir && (buf=malloc(strlen(dir)+strlen(filename)+1+3+1)) ) {
- strcpy(stpcpy(stpcpy(stpcpy( buf, dir),"\\"), filename),".mo");
- /* Better make sure that we don't mix forward and
- backward slashes. It seems that some Windoze
- versions don't accept this. */
- for (p=buf; *p; p++)
- {
- if (*p == '/')
- *p = '\\';
- }
- domain = load_domain( buf );
- free(buf);
- }
- free(dir);
- }
- if( !domain )
- return -1;
- }
-
- if( the_domain ) {
- struct overflow_space_s *os, *os2;
- free( the_domain->data );
- free( the_domain->mapped );
- for (os=the_domain->overflow_space; os; os = os2) {
- os2 = os->next;
- free (os);
- }
- free( the_domain );
- the_domain = NULL;
- }
- the_domain = domain;
- return 0;
-}
-
-
-static const char*
-get_string( struct loaded_domain *domain, u32 idx )
-{
- struct overflow_space_s *os;
- char *p;
-
- p = domain->data + SWAPIT(domain->must_swap, domain->trans_tab[idx].offset);
- if (!domain->mapped[idx])
- {
- size_t plen, buflen;
- char *buf;
-
- domain->mapped[idx] = 1;
-
- plen = strlen (p);
- buf = utf8_to_native (p, plen, -1);
- buflen = strlen (buf);
- if (buflen <= plen)
- strcpy (p, buf);
- else
- {
- /* There is not enough space for the translation - store it
- in the overflow_space else and mark that in the mapped
- array. Because we expect that this won't happen too
- often, we use a simple linked list. */
- os = malloc (sizeof *os + buflen);
- if (os)
- {
- os->idx = idx;
- strcpy (os->d, buf);
- os->next = domain->overflow_space;
- domain->overflow_space = os;
- p = os->d;
- }
- else
- p = "ERROR in GETTEXT MALLOC";
- }
- xfree (buf);
- }
- else if (domain->mapped[idx] == 2)
- { /* We need to get the string from the overflow_space. */
- for (os=domain->overflow_space; os; os = os->next)
- if (os->idx == idx)
- return (const char*)os->d;
- p = "ERROR in GETTEXT\n";
- }
- return (const char*)p;
-}
-
-
-
-const char *
-gettext( const char *msgid )
-{
- struct loaded_domain *domain;
- size_t act = 0;
- size_t top, bottom;
-
- if( !(domain = the_domain) )
- goto not_found;
-
- /* Locate the MSGID and its translation. */
- if( domain->hash_size > 2 && domain->hash_tab ) {
- /* Use the hashing table. */
- u32 len = strlen (msgid);
- u32 hash_val = hash_string (msgid);
- u32 idx = hash_val % domain->hash_size;
- u32 incr = 1 + (hash_val % (domain->hash_size - 2));
- u32 nstr = SWAPIT (domain->must_swap, domain->hash_tab[idx]);
-
- if ( !nstr ) /* Hash table entry is empty. */
- goto not_found;
-
- if( SWAPIT(domain->must_swap,
- domain->orig_tab[nstr - 1].length) == len
- && !strcmp( msgid,
- domain->data + SWAPIT(domain->must_swap,
- domain->orig_tab[nstr - 1].offset)) )
- return get_string( domain, nstr - 1 );
-
- for(;;) {
- if (idx >= domain->hash_size - incr)
- idx -= domain->hash_size - incr;
- else
- idx += incr;
-
- nstr = SWAPIT(domain->must_swap, domain->hash_tab[idx]);
- if( !nstr )
- goto not_found; /* Hash table entry is empty. */
-
- if ( SWAPIT(domain->must_swap,
- domain->orig_tab[nstr - 1].length) == len
- && !strcmp (msgid,
- domain->data + SWAPIT(domain->must_swap,
- domain->orig_tab[nstr - 1].offset)))
- return get_string( domain, nstr-1 );
- }
- /* NOTREACHED */
- }
-
- /* Now we try the default method: binary search in the sorted
- array of messages. */
- bottom = 0;
- top = domain->nstrings;
- while( bottom < top ) {
- int cmp_val;
-
- act = (bottom + top) / 2;
- cmp_val = strcmp(msgid, domain->data
- + SWAPIT(domain->must_swap,
- domain->orig_tab[act].offset));
- if (cmp_val < 0)
- top = act;
- else if (cmp_val > 0)
- bottom = act + 1;
- else
- return get_string( domain, act );
- }
-
- not_found:
- return msgid;
-}
-
-
-const char *
-ngettext (const char *msgid1, const char *msgid2, unsigned long int n)
-{
- /* We use the simple Germanic plural rule. */
- return gettext (n==1? msgid1 : msgid2);
-}
-
-
-#if 0
- unsigned int cp1, cp2;
-
- cp1 = GetConsoleCP();
- cp2 = GetConsoleOutputCP();
-
- log_info("InputCP=%u OutputCP=%u\n", cp1, cp2 );
-
- if( !SetConsoleOutputCP( 1252 ) )
- log_info("SetConsoleOutputCP failed: %s\n", w32_strerror (0));
-
- cp1 = GetConsoleCP();
- cp2 = GetConsoleOutputCP();
- log_info("InputCP=%u OutputCP=%u after switch1\n", cp1, cp2 );
-#endif
-
-#endif /* USE_SIMPLE_GETTEXT */
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-28 15:00:59 +0000