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authorDJ Delorie <dj@redhat.com>2007-08-17 19:31:01 +0000
committerDJ Delorie <dj@redhat.com>2007-08-17 19:31:01 +0000
commitcefec4092d6c88bb538f85769b464dea126ec274 (patch)
treeac03b06e83ab669659e69e18921e2d4050c37afe /libiberty/make-relative-prefix.c
parent198757a8b19977e7d4bb048dac03fb207ce228ac (diff)
downloadgdb-cefec4092d6c88bb538f85769b464dea126ec274.zip
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merge from gcc
Diffstat (limited to 'libiberty/make-relative-prefix.c')
-rw-r--r--libiberty/make-relative-prefix.c41
1 files changed, 14 insertions, 27 deletions
diff --git a/libiberty/make-relative-prefix.c b/libiberty/make-relative-prefix.c
index be61040..80e7f92 100644
--- a/libiberty/make-relative-prefix.c
+++ b/libiberty/make-relative-prefix.c
@@ -201,10 +201,13 @@ free_split_directories (char **dirs)
{
int i = 0;
- while (dirs[i] != NULL)
- free (dirs[i++]);
+ if (dirs != NULL)
+ {
+ while (dirs[i] != NULL)
+ free (dirs[i++]);
- free ((char *) dirs);
+ free ((char *) dirs);
+ }
}
/* Given three strings PROGNAME, BIN_PREFIX, PREFIX, return a string that gets
@@ -221,11 +224,11 @@ 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;
+ char **prog_dirs = NULL, **bin_dirs = NULL, **prefix_dirs = NULL;
int prog_num, bin_num, prefix_num;
int i, n, common;
int needed_len;
- char *ret, *ptr, *full_progname = NULL;
+ char *ret = NULL, *ptr, *full_progname;
if (progname == NULL || bin_prefix == NULL || prefix == NULL)
return NULL;
@@ -305,10 +308,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
bin_dirs = split_directories (bin_prefix, &bin_num);
if (bin_dirs == NULL)
- {
- free_split_directories (prog_dirs);
- return NULL;
- }
+ goto bailout;
/* Remove the program name from comparison of directory names. */
prog_num--;
@@ -326,21 +326,12 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
}
if (prog_num <= 0 || i == bin_num)
- {
- free_split_directories (prog_dirs);
- free_split_directories (bin_dirs);
- prog_dirs = bin_dirs = (char **) 0;
- return NULL;
- }
+ goto bailout;
}
prefix_dirs = split_directories (prefix, &prefix_num);
if (prefix_dirs == NULL)
- {
- free_split_directories (prog_dirs);
- free_split_directories (bin_dirs);
- return NULL;
- }
+ goto bailout;
/* Find how many directories are in common between bin_prefix & prefix. */
n = (prefix_num < bin_num) ? prefix_num : bin_num;
@@ -352,12 +343,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
/* If there are no common directories, there can be no relative prefix. */
if (common == 0)
- {
- free_split_directories (prog_dirs);
- free_split_directories (bin_dirs);
- free_split_directories (prefix_dirs);
- return NULL;
- }
+ goto bailout;
/* Two passes: first figure out the size of the result string, and
then construct it. */
@@ -371,7 +357,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
ret = (char *) malloc (needed_len);
if (ret == NULL)
- return NULL;
+ goto bailout;
/* Build up the pathnames in argv[0]. */
*ret = '\0';
@@ -392,6 +378,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
for (i = common; i < prefix_num; i++)
strcat (ret, prefix_dirs[i]);
+ bailout:
free_split_directories (prog_dirs);
free_split_directories (bin_dirs);
free_split_directories (prefix_dirs);