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| author | mycroft <mycroft@NetBSD.org> | 1993-04-20 22:05:34 +0000 |
|---|---|---|
| committer | mycroft <mycroft@NetBSD.org> | 1993-04-20 22:05:34 +0000 |
| commit | 17218cf9a277aadf6eafecb1f87796581bfefc3b (patch) | |
| tree | a43e8ac39f3485f2993fed84de53aef2edd648aa | |
| parent | 10e9633963797cac6bb94bb2950e7a1fcc25c1d3 (diff) | |
| download | bsdgames-darwin-17218cf9a277aadf6eafecb1f87796581bfefc3b.tar.gz bsdgames-darwin-17218cf9a277aadf6eafecb1f87796581bfefc3b.zip | |
Don't dereference NULL pointer.
| -rw-r--r-- | snake/snake/move.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/snake/snake/move.c b/snake/snake/move.c index cbfeaa3c..df985831 100644 --- a/snake/snake/move.c +++ b/snake/snake/move.c @@ -601,7 +601,10 @@ getcap() KR = tgetstr("kr", &ap); KU = tgetstr("ku", &ap); KD = tgetstr("kd", &ap); - Klength = strlen(KL); + if (KL && KR && KU && KD) + Klength = strlen(KL); + else + Klength = 0; /* NOTE: If KL, KR, KU, and KD are not * all the same length, some problems * may arise, since tests are made on |