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fix for setenv bogus var argument handling
author
Rich Felker
<dalias@aerifal.cx>
Fri, 29 Jul 2011 00:43:40 +0000
(20:43 -0400)
committer
Rich Felker
<dalias@aerifal.cx>
Fri, 29 Jul 2011 00:43:40 +0000
(20:43 -0400)
thanks to mikachu
per POSIX:
The setenv() function shall fail if:
[EINVAL] The name argument is a null pointer, points to an empty
string, or points to a string containing an '=' character.
src/env/setenv.c
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diff --git
a/src/env/setenv.c
b/src/env/setenv.c
index
03e165c
..
c2c2544
100644
(file)
--- a/
src/env/setenv.c
+++ b/
src/env/setenv.c
@@
-9,7
+9,7
@@
int setenv(const char *var, const char *value, int overwrite)
char *s;
int l1, l2;
char *s;
int l1, l2;
- if (strchr(var, '=')) {
+ if (
!var || !*var ||
strchr(var, '=')) {
errno = EINVAL;
return -1;
}
errno = EINVAL;
return -1;
}