summaryrefslogtreecommitdiff
path: root/src/common/util-common.c
diff options
context:
space:
mode:
authorAndrew Gregory <andrew.gregory.8@gmail.com>2014-06-26 11:52:05 -0400
committerAllan McRae <allan@archlinux.org>2014-08-03 18:46:32 +1000
commitbbeced26f6ce167ad93817ebe7180cd22ef33c86 (patch)
treedb4bcc3bf951847ba0a4617e6f083c7aa104ced3 /src/common/util-common.c
parente8de265f8039165dc32ffb78f6a6a5eb0c1514ad (diff)
downloadpacman-bbeced26f6ce167ad93817ebe7180cd22ef33c86.tar.xz
llstat: modify path in place
This makes llstat's signature differ from lstat's, but we never actually use it on a const string and this saves a large number of strdup's. This also allows stripping multiple trailing slashes and corrects a bug where calling llstat on "/" would result in calling lstat on an empty string. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Diffstat (limited to 'src/common/util-common.c')
-rw-r--r--src/common/util-common.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/src/common/util-common.c b/src/common/util-common.c
index e6f95194..3316eaec 100644
--- a/src/common/util-common.c
+++ b/src/common/util-common.c
@@ -80,17 +80,21 @@ char *mdirname(const char *path)
* @param buf structure to fill with stat information
* @return the return code from lstat
*/
-int llstat(const char *path, struct stat *buf)
+int llstat(char *path, struct stat *buf)
{
int ret;
+ char *c = NULL;
size_t len = strlen(path);
- /* strip the trailing slash if one exists */
- if(len != 0 && path[len - 1] == '/') {
- char *newpath = strdup(path);
- newpath[len - 1] = '\0';
- ret = lstat(newpath, buf);
- free(newpath);
+ while(len > 1 && path[len - 1] == '/') {
+ --len;
+ c = path + len;
+ }
+
+ if(c) {
+ *c = '\0';
+ ret = lstat(path, buf);
+ *c = '/';
} else {
ret = lstat(path, buf);
}