[PATCH v2 05/13] env: Don't match empty variable name in env_match()

From: Marek Behún marek.behun@nic.cz

Do we really allow zero-length variable name? I guess not.

Signed-off-by: Marek Behún marek.behun@nic.cz --- cmd/nvedit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/nvedit.c b/cmd/nvedit.c index 742e0924af..e2e8a38b5d 100644 --- a/cmd/nvedit.c +++ b/cmd/nvedit.c @@ -708,7 +708,7 @@ char *from_env(const char *envvar)

static int env_match(uchar *s1, int i2) { - if (s1 == NULL) + if (s1 == NULL || *s1 == '\0') return -1;

while (*s1 == env_get_char(i2++))