diff options
Diffstat (limited to 'contrib/binutils/libiberty/make-relative-prefix.c')
| -rw-r--r-- | contrib/binutils/libiberty/make-relative-prefix.c | 71 |
1 files changed, 48 insertions, 23 deletions
diff --git a/contrib/binutils/libiberty/make-relative-prefix.c b/contrib/binutils/libiberty/make-relative-prefix.c index dc4f8d5..037809e 100644 --- a/contrib/binutils/libiberty/make-relative-prefix.c +++ b/contrib/binutils/libiberty/make-relative-prefix.c @@ -1,6 +1,6 @@ /* Relative (relocatable) prefix support. Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc. This file is part of libiberty. @@ -16,8 +16,8 @@ for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA +02110-1301, USA. */ /* @@ -95,16 +95,14 @@ relative prefix can be found, return @code{NULL}. #define DIR_UP ".." -static char *save_string PARAMS ((const char *, int)); -static char **split_directories PARAMS ((const char *, int *)); -static void free_split_directories PARAMS ((char **)); +static char *save_string (const char *, int); +static char **split_directories (const char *, int *); +static void free_split_directories (char **); static char * -save_string (s, len) - const char *s; - int len; +save_string (const char *s, int len) { - char *result = malloc (len + 1); + char *result = (char *) malloc (len + 1); memcpy (result, s, len); result[len] = 0; @@ -114,9 +112,7 @@ save_string (s, len) /* Split a filename into component directories. */ static char ** -split_directories (name, ptr_num_dirs) - const char *name; - int *ptr_num_dirs; +split_directories (const char *name, int *ptr_num_dirs) { int num_dirs = 0; char **dirs; @@ -201,8 +197,7 @@ split_directories (name, ptr_num_dirs) /* Release storage held by split directories. */ static void -free_split_directories (dirs) - char **dirs; +free_split_directories (char **dirs) { int i = 0; @@ -222,11 +217,9 @@ free_split_directories (dirs) If no relative prefix can be found, return NULL. */ -char * -make_relative_prefix (progname, bin_prefix, prefix) - const char *progname; - const char *bin_prefix; - const char *prefix; +static char * +make_relative_prefix_1 (const char *progname, const char *bin_prefix, + const char *prefix, const int resolve_links) { char **prog_dirs, **bin_dirs, **prefix_dirs; int prog_num, bin_num, prefix_num; @@ -296,9 +289,14 @@ make_relative_prefix (progname, bin_prefix, prefix) } } - full_progname = lrealpath (progname); - if (full_progname == NULL) - return NULL; + if ( resolve_links ) + { + full_progname = lrealpath (progname); + if (full_progname == NULL) + return NULL; + } + else + full_progname = strdup(progname); prog_dirs = split_directories (full_progname, &prog_num); bin_dirs = split_directories (bin_prefix, &bin_num); @@ -394,3 +392,30 @@ make_relative_prefix (progname, bin_prefix, prefix) return ret; } + + +/* Do the full job, including symlink resolution. + This path will find files installed in the same place as the + program even when a soft link has been made to the program + from somwhere else. */ + +char * +make_relative_prefix (const char *progname, const char *bin_prefix, + const char *prefix) +{ + return make_relative_prefix_1 (progname, bin_prefix, prefix, 1); +} + +/* Make the relative pathname without attempting to resolve any links. + '..' etc may also be left in the pathname. + This will find the files the user meant the program to find if the + installation is patched together with soft links. */ + +char * +make_relative_prefix_ignore_links (const char *progname, + const char *bin_prefix, + const char *prefix) +{ + return make_relative_prefix_1 (progname, bin_prefix, prefix, 0); +} + |
