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fix possible null pointer dereference

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cppcheck reports:
network.cpp:1717:22: error: Null pointer dereference: payload [ctunullpointer]
    memcpy(tcp_data, payload, payloadlen);
                     ^
client.cpp:193:22: note: Calling function send_raw0, 2nd argument is null
            send_raw0(raw_info, 0, 0);
                     ^
network.cpp:2534:20: note: Calling function send_raw_tcp, 2nd argument is null
            return send_raw_tcp(raw_info, payload, payloadlen);
                   ^
network.cpp:1717:22: note: Dereferencing argument payload that is null
    memcpy(tcp_data, payload, payloadlen);
                     ^
This commit is contained in:
HiGarfield
2023-10-08 11:34:17 +08:00
parent d1a9bcc4fb
commit ee1e4d33f8
1 changed files with 2 additions and 1 deletions
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3
network.cpp
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@@ -1714,7 +1714,8 @@ int send_raw_tcp(raw_info_t &raw_info, const char *payload, int payloadlen) { /
char *tcp_data = send_raw_tcp_buf + +tcph->doff * 4;
memcpy(tcp_data, payload, payloadlen);
if (payload)
memcpy(tcp_data, payload, payloadlen);
int tcp_totlen = tcph->doff * 4 + payloadlen;
if (raw_ip_version == AF_INET) {