From 86f4222cfe1e30c2de6c7362e31a8ab5b68f7321 Mon Sep 17 00:00:00 2001 From: Alexey Yakovenko Date: Wed, 19 May 2010 20:58:20 +0200 Subject: localization updates --- intl/relocatable.c | 289 +++++++++++++++++++++++++++++------------------------ 1 file changed, 157 insertions(+), 132 deletions(-) (limited to 'intl/relocatable.c') diff --git a/intl/relocatable.c b/intl/relocatable.c index 5e1dde6c..f1bed781 100644 --- a/intl/relocatable.c +++ b/intl/relocatable.c @@ -1,5 +1,5 @@ /* Provide relocatable packages. - Copyright (C) 2003-2006 Free Software Foundation, Inc. + Copyright (C) 2003-2006, 2008-2009 Free Software Foundation, Inc. Written by Bruno Haible , 2003. This program is free software; you can redistribute it and/or modify it @@ -22,7 +22,7 @@ This must come before because may include , and once has been included, it's too late. */ #ifndef _GNU_SOURCE -# define _GNU_SOURCE 1 +# define _GNU_SOURCE 1 #endif #include @@ -102,11 +102,11 @@ static size_t curr_prefix_len; instead of "/"). */ static void set_this_relocation_prefix (const char *orig_prefix_arg, - const char *curr_prefix_arg) + const char *curr_prefix_arg) { if (orig_prefix_arg != NULL && curr_prefix_arg != NULL /* Optimization: if orig_prefix and curr_prefix are equal, the - relocation is a nop. */ + relocation is a nop. */ && strcmp (orig_prefix_arg, curr_prefix_arg) != 0) { /* Duplicate the argument strings. */ @@ -118,14 +118,14 @@ set_this_relocation_prefix (const char *orig_prefix_arg, #ifdef NO_XMALLOC if (memory != NULL) #endif - { - memcpy (memory, orig_prefix_arg, orig_prefix_len + 1); - orig_prefix = memory; - memory += orig_prefix_len + 1; - memcpy (memory, curr_prefix_arg, curr_prefix_len + 1); - curr_prefix = memory; - return; - } + { + memcpy (memory, orig_prefix_arg, orig_prefix_len + 1); + orig_prefix = memory; + memory += orig_prefix_len + 1; + memcpy (memory, curr_prefix_arg, curr_prefix_len + 1); + curr_prefix = memory; + return; + } } orig_prefix = NULL; curr_prefix = NULL; @@ -160,17 +160,18 @@ set_relocation_prefix (const char *orig_prefix_arg, const char *curr_prefix_arg) /* Convenience function: Computes the current installation prefix, based on the original installation prefix, the original installation directory of a particular - file, and the current pathname of this file. Returns NULL upon failure. */ + file, and the current pathname of this file. + Returns it, freshly allocated. Returns NULL upon failure. */ #ifdef IN_LIBRARY #define compute_curr_prefix local_compute_curr_prefix static #endif -const char * +char * compute_curr_prefix (const char *orig_installprefix, - const char *orig_installdir, - const char *curr_pathname) + const char *orig_installdir, + const char *curr_pathname) { - const char *curr_installdir; + char *curr_installdir; const char *rel_installdir; if (curr_pathname == NULL) @@ -193,9 +194,9 @@ compute_curr_prefix (const char *orig_installprefix, while (p > p_base) { - p--; - if (ISSLASH (*p)) - break; + p--; + if (ISSLASH (*p)) + break; } q = (char *) xmalloc (p - curr_pathname + 1); @@ -218,44 +219,47 @@ compute_curr_prefix (const char *orig_installprefix, while (rp > rel_installdir && cp > cp_base) { - bool same = false; - const char *rpi = rp; - const char *cpi = cp; - - while (rpi > rel_installdir && cpi > cp_base) - { - rpi--; - cpi--; - if (ISSLASH (*rpi) || ISSLASH (*cpi)) - { - if (ISSLASH (*rpi) && ISSLASH (*cpi)) - same = true; - break; - } - /* Do case-insensitive comparison if the filesystem is always or - often case-insensitive. It's better to accept the comparison - if the difference is only in case, rather than to fail. */ + bool same = false; + const char *rpi = rp; + const char *cpi = cp; + + while (rpi > rel_installdir && cpi > cp_base) + { + rpi--; + cpi--; + if (ISSLASH (*rpi) || ISSLASH (*cpi)) + { + if (ISSLASH (*rpi) && ISSLASH (*cpi)) + same = true; + break; + } + /* Do case-insensitive comparison if the file system is always or + often case-insensitive. It's better to accept the comparison + if the difference is only in case, rather than to fail. */ #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__ - /* Win32, Cygwin, OS/2, DOS - case insignificant filesystem */ - if ((*rpi >= 'a' && *rpi <= 'z' ? *rpi - 'a' + 'A' : *rpi) - != (*cpi >= 'a' && *cpi <= 'z' ? *cpi - 'a' + 'A' : *cpi)) - break; + /* Win32, Cygwin, OS/2, DOS - case insignificant file system */ + if ((*rpi >= 'a' && *rpi <= 'z' ? *rpi - 'a' + 'A' : *rpi) + != (*cpi >= 'a' && *cpi <= 'z' ? *cpi - 'a' + 'A' : *cpi)) + break; #else - if (*rpi != *cpi) - break; + if (*rpi != *cpi) + break; #endif - } - if (!same) - break; - /* The last pathname component was the same. opi and cpi now point - to the slash before it. */ - rp = rpi; - cp = cpi; + } + if (!same) + break; + /* The last pathname component was the same. opi and cpi now point + to the slash before it. */ + rp = rpi; + cp = cpi; } if (rp > rel_installdir) - /* Unexpected: The curr_installdir does not end with rel_installdir. */ - return NULL; + { + /* Unexpected: The curr_installdir does not end with rel_installdir. */ + free (curr_installdir); + return NULL; + } { size_t curr_prefix_len = cp - curr_installdir; @@ -264,11 +268,16 @@ compute_curr_prefix (const char *orig_installprefix, curr_prefix = (char *) xmalloc (curr_prefix_len + 1); #ifdef NO_XMALLOC if (curr_prefix == NULL) - return NULL; + { + free (curr_installdir); + return NULL; + } #endif memcpy (curr_prefix, curr_installdir, curr_prefix_len); curr_prefix[curr_prefix_len] = '\0'; + free (curr_installdir); + return curr_prefix; } } @@ -296,30 +305,30 @@ DllMain (HINSTANCE module_handle, DWORD event, LPVOID reserved) static char location[MAX_PATH]; if (!GetModuleFileName (module_handle, location, sizeof (location))) - /* Shouldn't happen. */ - return FALSE; + /* Shouldn't happen. */ + return FALSE; if (!IS_PATH_WITH_DIR (location)) - /* Shouldn't happen. */ - return FALSE; + /* Shouldn't happen. */ + return FALSE; { #if defined __CYGWIN__ - /* On Cygwin, we need to convert paths coming from Win32 system calls - to the Unix-like slashified notation. */ - static char location_as_posix_path[2 * MAX_PATH]; - /* There's no error return defined for cygwin_conv_to_posix_path. - See cygwin-api/func-cygwin-conv-to-posix-path.html. - Does it overflow the buffer of expected size MAX_PATH or does it - truncate the path? I don't know. Let's catch both. */ - cygwin_conv_to_posix_path (location, location_as_posix_path); - location_as_posix_path[MAX_PATH - 1] = '\0'; - if (strlen (location_as_posix_path) >= MAX_PATH - 1) - /* A sign of buffer overflow or path truncation. */ - return FALSE; - shared_library_fullname = strdup (location_as_posix_path); + /* On Cygwin, we need to convert paths coming from Win32 system calls + to the Unix-like slashified notation. */ + static char location_as_posix_path[2 * MAX_PATH]; + /* There's no error return defined for cygwin_conv_to_posix_path. + See cygwin-api/func-cygwin-conv-to-posix-path.html. + Does it overflow the buffer of expected size MAX_PATH or does it + truncate the path? I don't know. Let's catch both. */ + cygwin_conv_to_posix_path (location, location_as_posix_path); + location_as_posix_path[MAX_PATH - 1] = '\0'; + if (strlen (location_as_posix_path) >= MAX_PATH - 1) + /* A sign of buffer overflow or path truncation. */ + return FALSE; + shared_library_fullname = strdup (location_as_posix_path); #else - shared_library_fullname = strdup (location); + shared_library_fullname = strdup (location); #endif } } @@ -342,37 +351,37 @@ find_shared_library_fullname () { unsigned long address = (unsigned long) &find_shared_library_fullname; for (;;) - { - unsigned long start, end; - int c; - - if (fscanf (fp, "%lx-%lx", &start, &end) != 2) - break; - if (address >= start && address <= end - 1) - { - /* Found it. Now see if this line contains a filename. */ - while (c = getc (fp), c != EOF && c != '\n' && c != '/') - continue; - if (c == '/') - { - size_t size; - int len; - - ungetc (c, fp); - shared_library_fullname = NULL; size = 0; - len = getline (&shared_library_fullname, &size, fp); - if (len >= 0) - { - /* Success: filled shared_library_fullname. */ - if (len > 0 && shared_library_fullname[len - 1] == '\n') - shared_library_fullname[len - 1] = '\0'; - } - } - break; - } - while (c = getc (fp), c != EOF && c != '\n') - continue; - } + { + unsigned long start, end; + int c; + + if (fscanf (fp, "%lx-%lx", &start, &end) != 2) + break; + if (address >= start && address <= end - 1) + { + /* Found it. Now see if this line contains a filename. */ + while (c = getc (fp), c != EOF && c != '\n' && c != '/') + continue; + if (c == '/') + { + size_t size; + int len; + + ungetc (c, fp); + shared_library_fullname = NULL; size = 0; + len = getline (&shared_library_fullname, &size, fp); + if (len >= 0) + { + /* Success: filled shared_library_fullname. */ + if (len > 0 && shared_library_fullname[len - 1] == '\n') + shared_library_fullname[len - 1] = '\0'; + } + } + break; + } + while (c = getc (fp), c != EOF && c != '\n') + continue; + } fclose (fp); } #endif @@ -400,7 +409,9 @@ get_shared_library_fullname () #endif /* PIC */ /* Returns the pathname, relocated according to the current installation - directory. */ + directory. + The returned string is either PATHNAME unmodified or a freshly allocated + string that you can free with free() after casting it to 'char *'. */ const char * relocate (const char *pathname) { @@ -411,55 +422,69 @@ relocate (const char *pathname) if (!initialized) { /* At this point, orig_prefix and curr_prefix likely have already been - set through the main program's set_program_name_and_installdir - function. This is sufficient in the case that the library has - initially been installed in the same orig_prefix. But we can do - better, to also cover the cases that 1. it has been installed - in a different prefix before being moved to orig_prefix and (later) - to curr_prefix, 2. unlike the program, it has not moved away from - orig_prefix. */ + set through the main program's set_program_name_and_installdir + function. This is sufficient in the case that the library has + initially been installed in the same orig_prefix. But we can do + better, to also cover the cases that 1. it has been installed + in a different prefix before being moved to orig_prefix and (later) + to curr_prefix, 2. unlike the program, it has not moved away from + orig_prefix. */ const char *orig_installprefix = INSTALLPREFIX; const char *orig_installdir = INSTALLDIR; - const char *curr_prefix_better; + char *curr_prefix_better; curr_prefix_better = - compute_curr_prefix (orig_installprefix, orig_installdir, - get_shared_library_fullname ()); - if (curr_prefix_better == NULL) - curr_prefix_better = curr_prefix; + compute_curr_prefix (orig_installprefix, orig_installdir, + get_shared_library_fullname ()); - set_relocation_prefix (orig_installprefix, curr_prefix_better); + set_relocation_prefix (orig_installprefix, + curr_prefix_better != NULL + ? curr_prefix_better + : curr_prefix); + + if (curr_prefix_better != NULL) + free (curr_prefix_better); initialized = 1; } #endif /* Note: It is not necessary to perform case insensitive comparison here, - even for DOS-like filesystems, because the pathname argument was + even for DOS-like file systems, because the pathname argument was typically created from the same Makefile variable as orig_prefix came from. */ if (orig_prefix != NULL && curr_prefix != NULL && strncmp (pathname, orig_prefix, orig_prefix_len) == 0) { if (pathname[orig_prefix_len] == '\0') - /* pathname equals orig_prefix. */ - return curr_prefix; - if (ISSLASH (pathname[orig_prefix_len])) - { - /* pathname starts with orig_prefix. */ - const char *pathname_tail = &pathname[orig_prefix_len]; - char *result = - (char *) xmalloc (curr_prefix_len + strlen (pathname_tail) + 1); + { + /* pathname equals orig_prefix. */ + char *result = (char *) xmalloc (strlen (curr_prefix) + 1); + +#ifdef NO_XMALLOC + if (result != NULL) +#endif + { + strcpy (result, curr_prefix); + return result; + } + } + else if (ISSLASH (pathname[orig_prefix_len])) + { + /* pathname starts with orig_prefix. */ + const char *pathname_tail = &pathname[orig_prefix_len]; + char *result = + (char *) xmalloc (curr_prefix_len + strlen (pathname_tail) + 1); #ifdef NO_XMALLOC - if (result != NULL) + if (result != NULL) #endif - { - memcpy (result, curr_prefix, curr_prefix_len); - strcpy (result + curr_prefix_len, pathname_tail); - return result; - } - } + { + memcpy (result, curr_prefix, curr_prefix_len); + strcpy (result + curr_prefix_len, pathname_tail); + return result; + } + } } /* Nothing to relocate. */ return pathname; -- cgit v1.2.3