diff options
| author | Xabier Oneca <xoneca@gmail.com> | 2020-12-01 23:14:59 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2020-12-08 18:46:32 +0100 |
| commit | abaee4aada7c91da6a43a83e9a73f98916a803a4 (patch) | |
| tree | 29bec8376182d55165b245806b39e55a43dd1eca /libbb | |
| parent | c9b93cf2908c845c60ad70cbed0074c4c0903208 (diff) | |
mkdtemp: proper error detection on mktemp
On error, mktemp returns an empty string, not NULL.
Signed-off-by: Xabier Oneca <xoneca@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/platform.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libbb/platform.c b/libbb/platform.c index 03bbb798b..d2b263a6d 100644 --- a/libbb/platform.c +++ b/libbb/platform.c @@ -107,7 +107,8 @@ void* FAST_FUNC memrchr(const void *s, int c, size_t n) /* This is now actually part of POSIX.1, but was only added in 2008 */ char* FAST_FUNC mkdtemp(char *template) { - if (mktemp(template) == NULL || mkdir(template, 0700) != 0) + /* NB: on error, mktemp returns an empty string, not NULL */ + if (mktemp(template)[0] == '\0' || mkdir(template, 0700) != 0) return NULL; return template; } |