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/* Load trimmed message catalogs.
Copyright (C) Enrique Zanardi <ezanard@debian.org>, 1999
gettext.h code fragment is:
Copyright (C) 1995, 1997 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 Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
/* The following is copied from gettext.h */
/* BEGIN gettext */
/* Use the C preprocessor to determine an unsigned integral type that is
* 32 bits wide. */
#if __STDC__
# define UINT_MAX_32_BITS 4294967295U
#else
# define UINT_MAX_32_BITS 0xFFFFFFFF
#endif
/* If UINT_MAX isn't defined, assume it's a 32-bit type. */
#ifndef UINT_MAX
# define UINT_MAX UINT_MAX_32_BITS
#endif
#if UINT_MAX == UINT_MAX_32_BITS
typedef unsigned nls_uint32;
#else
# if USHRT_MAX == UINT_MAX_32_BITS
typedef unsigned short nls_uint32;
# else
# if ULONG_MAX == UINT_MAX_32_BITS
typedef unsigned long nls_uint32;
# else
/* The following line is intended to throw an error. Using #error is
not portable enough. */
"Cannot determine unsigned 32-bit data type."
# endif
# endif
#endif
/* END gettext */
/* Load the message catalogs specified by FILENAME. On error return 0,
* on success return the nuber of strings read. */
int load_trmfile (char *file, char **messages_table, int tstrings) {
int fd, cnt;
size_t size;
struct stat st;
nls_uint32 nstrings,*data,*ptr;
/* Try to open the addressed file. */
fd = open (file, O_RDONLY);
if (fd == -1)
return 0;
/* We must know about the size of the file. */
if (fstat (fd, &st) != 0
|| (size = (size_t) st.st_size) != st.st_size) {
/* Something went wrong. */
close (fd);
return 0;
}
/* Load the file. */
data = (nls_uint32 *) mmap (NULL, size, PROT_READ,
MAP_PRIVATE, fd, 0);
if (data != (nls_uint32 *) -1) {
/* mmap() call was successful. */
close (fd);
} else {
return 0;
}
nstrings = *data;
if ((int)nstrings != tstrings) {
/* The number of strings is wrong: not a valid message catalog file. */
munmap ((caddr_t) data, size);
return 0;
}
for (cnt=0, ptr=data, ptr++; cnt<nstrings; cnt++, ptr++)
messages_table[cnt]=(char *)data+(*ptr);
return cnt;
}
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