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authorMike Frysinger <vapier@gentoo.org>2007-02-08 18:25:57 +0000
committerMike Frysinger <vapier@gentoo.org>2007-02-08 18:25:57 +0000
commit66b987ac3bcbe9dfc1ee4eb76dddeb1d5f9f30b2 (patch)
tree0cb0907783c43f1055249d137b466a910de886f0 /libc
parentb56c113af85ffe0dc7a2780be767b5925296385f (diff)
handle file_name==NULL and file_name=="" as required by POSIX
Diffstat (limited to 'libc')
-rw-r--r--libc/stdlib/realpath.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/libc/stdlib/realpath.c b/libc/stdlib/realpath.c
index b7c7ef413..aae8580a5 100644
--- a/libc/stdlib/realpath.c
+++ b/libc/stdlib/realpath.c
@@ -58,6 +58,14 @@ char resolved_path[];
int readlinks = 0;
int n;
+ if (path == NULL) {
+ __set_errno(EINVAL);
+ return NULL;
+ }
+ if (*path == '\0') {
+ __set_errno(ENOENT);
+ return NULL;
+ }
/* Make a copy of the source path since we may need to modify it. */
if (strlen(path) >= PATH_MAX - 2) {
__set_errno(ENAMETOOLONG);