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nghttpd: Check maximum value of -c option

This commit is contained in:
Tatsuhiro Tsujikawa 2016-09-17 22:35:22 +09:00
parent 3ec71bf5a2
commit 751d66a397
1 changed files with 10 additions and 4 deletions
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14
src/nghttpd.cc
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@ -282,14 +282,20 @@ int main(int argc, char **argv) {
case 'v':
config.verbose = true;
break;
case 'c':
errno = 0;
config.header_table_size = util::parse_uint_with_unit(optarg);
if (config.header_table_size == -1) {
case 'c': {
auto n = util::parse_uint_with_unit(optarg);
if (n == -1) {
std::cerr << "-c: Bad option value: " << optarg << std::endl;
exit(EXIT_FAILURE);
}
if (n > std::numeric_limits<uint32_t>::max()) {
std::cerr << "-c: Value too large. It should be less than or equal to "
<< std::numeric_limits<uint32_t>::max() << std::endl;
exit(EXIT_FAILURE);
}
config.header_table_size = n;
break;
}
case 'p':
if (parse_push_config(config, optarg) != 0) {
std::cerr << "-p: Bad option value: " << optarg << std::endl;