diff options
| -rw-r--r-- | libc/stdlib/setenv.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libc/stdlib/setenv.c b/libc/stdlib/setenv.c index f3b53b6c5..ecc302536 100644 --- a/libc/stdlib/setenv.c +++ b/libc/stdlib/setenv.c @@ -41,7 +41,7 @@ static char **last_environ; to reuse values once generated for a `setenv' call since we can never free the strings. [in uclibc, we do not] */ static int __add_to_environ(const char *name, const char *value, - int replace) + int replace) { register char **ep; register size_t size; @@ -116,6 +116,11 @@ static int __add_to_environ(const char *name, const char *value, int setenv(const char *name, const char *value, int replace) { + if (name == NULL || *name == '\0' || strchr (name, '=') != NULL) { + __set_errno(EINVAL); + return -1; + } + /* NB: setenv("VAR", NULL, 1) inserts "VAR=" string */ return __add_to_environ(name, value ? value : "", replace); } |