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Merge pull request #177 from junliangtan/master

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fixed the crash issue when len is minus caused by invalid data.
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Linwei 2018-11-02 04:29:15 +08:00 committed by GitHub
commit 2df2110e6a
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1 changed files with 1 additions and 1 deletions
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ikcp.c
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@ -772,7 +772,7 @@ int ikcp_input(ikcpcb *kcp, const char *data, long size)
size -= IKCP_OVERHEAD; size -= IKCP_OVERHEAD;
if ((long)size < (long)len) return -2; if ((long)size < (long)len || (int)len < 0) return -2;
if (cmd != IKCP_CMD_PUSH && cmd != IKCP_CMD_ACK && if (cmd != IKCP_CMD_PUSH && cmd != IKCP_CMD_ACK &&
cmd != IKCP_CMD_WASK && cmd != IKCP_CMD_WINS) cmd != IKCP_CMD_WASK && cmd != IKCP_CMD_WINS)