parse_int
return parse_int(str, val, name);
err = parse_int(val, &spec->log_level, "test log level");
err = parse_int(val, &flags, "test prog flags");
err = parse_int(val, &spec->linear_sz, "test linear size");
cfg_sndbuf = parse_int(optarg);
cfg_rcvbuf = parse_int(optarg);
int parse_int(const char *buffer, size_t count, int *result, int base);
return parse_int(value, sizeof(value), result, 10);