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parse_port: fixed Coverity complaint

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CID 407267

handle correctly vicious inputs like "-P :" or "-P 1:"
This commit is contained in:
Martin Pulec
2023-05-09 10:49:07 +02:00
parent 183d175d73
commit cb0f7feafc
1 changed files with 8 additions and 6 deletions
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14
src/main.cpp
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@@ -598,13 +598,15 @@ struct ug_options {
};
static bool parse_port(char *optarg, struct ug_options *opt) {
if (strcmp(optarg, "help") == 0) {
char *save_ptr = nullptr;
char *first_val = strtok_r(optarg, ":", &save_ptr);
if (first_val == nullptr || strcmp(first_val, "help") == 0) {
color_printf("see\n\n " TBOLD("%s --fullhelp") "\n\nfor port specification usage\n", uv_argv[0]);
return false;
}
if (strchr(optarg, ':') != nullptr) {
char *save_ptr = nullptr;
opt->video_rx_port = stoi(strtok_r(optarg, ":", &save_ptr), nullptr, 0);
opt->video_tx_port = stoi(strtok_r(nullptr, ":", &save_ptr), nullptr, 0);
if (char *tx_port_str = strtok_r(nullptr, ":", &save_ptr)) {
opt->port_base = stoi(first_val, nullptr, 0);
opt->video_tx_port = stoi(tx_port_str, nullptr, 0);
char *tok = nullptr;
if ((tok = strtok_r(nullptr, ":", &save_ptr)) != nullptr) {
opt->audio.recv_port = stoi(tok, nullptr, 0);
@@ -616,7 +618,7 @@ static bool parse_port(char *optarg, struct ug_options *opt) {
}
}
} else {
opt->port_base = stoi(optarg, nullptr, 0);
opt->port_base = stoi(first_val, nullptr, 0);
}
if (opt->audio.recv_port < -1 || opt->audio.send_port < -1 || opt->video_rx_port < -1 || opt->video_tx_port < -1 || opt->port_base < -1 ||
opt->audio.recv_port > UINT16_MAX || opt->audio.send_port > UINT16_MAX || opt->video_rx_port > UINT16_MAX || opt->video_tx_port > UINT16_MAX || opt->port_base > UINT16_MAX) {