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cppcheck: fix possible null pointer dereference

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[nfq/desync.c:1242] -> [nfq/desync.c:1243]: (warning) Either the condition 'if(ip6hdr)' is redundant or there is possible null pointer dereference: ip6hdr.
[nfq/protocol.c:280] -> [nfq/protocol.c:284]: (warning) Either the condition 'if(ext&&len_host)' is redundant or there is possible null pointer dereference: ext.
[tpws/protocol.c:270] -> [tpws/protocol.c:274]: (warning) Either the condition 'if(ext&&len_host)' is redundant or there is possible null pointer dereference: ext.
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[anp/hsw]
2024-08-03 20:51:53 +07:00
parent 6fca1223b3
commit 9574539292
3 changed files with 10 additions and 5 deletions
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tpws/protocol.c
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@@ -267,7 +267,7 @@ static bool TLSExtractHostFromExt(const uint8_t *ext, size_t elen, char *host, s
// u16 data+0 - name list length
// u8 data+2 - server name type. 0=host_name
// u16 data+3 - server name length
if (elen < 5 || ext[2] != 0) return false;
if (elen < 5 || (ext && ext[2] != 0)) return false;
size_t slen = pntoh16(ext + 3);
ext += 5; elen -= 5;
if (slen < elen) return false;