diff options
Diffstat (limited to 'mount/realpath.c')
| -rw-r--r-- | mount/realpath.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/mount/realpath.c b/mount/realpath.c index 4ea46a311..4214cad72 100644 --- a/mount/realpath.c +++ b/mount/realpath.c @@ -13,8 +13,11 @@ * GNU Library Public License for more details. */ +#define HAVE_GETCWD + /* - * realpath.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp + * This routine is part of libc. We include it nevertheless, + * since the libc version has some security flaws. */ #ifdef __linux__ @@ -79,9 +82,14 @@ char *resolved_path; int n; /* Make a copy of the source path since we may need to modify it. */ + if (strlen(path) >= PATH_MAX) { + errno = ENAMETOOLONG; + return NULL; + } strcpy(copy_path, path); path = copy_path; max_path = copy_path + PATH_MAX - 2; + /* If it's a relative pathname use getwd for starters. */ if (*path != '/') { #ifdef HAVE_GETCWD |