Return EINVAL in setenv() if var is NULL or the empty string to match

glibc behavior.
2009-06-15 13:10:01 +00:00
parent 633357448a
commit 44ace77355
1 changed files with 3 additions and 0 deletions
--- a/env.c
+++ b/env.c
@@ -253,6 +253,9 @@ setenv(var, val, overwrite)
    const char *cp;
    size_t esize;

+    if (!var || *var == '\0')
+	return(EINVAL);
+
    /*
     * POSIX says a var name with '=' is an error but BSD
     * just ignores the '=' and anything after it.