Function anetFormatAddr

app/redis-6.2.6/src/anet.c:593–596

Format an IP,port pair into something easy to parse. If IP is IPv6 * (matches for ":"), the ip is surrounded by []. IP and port are just * separated by colons. This the standard to display addresses within Redis. */

 * (matches for ":"), the ip is surrounded by []. IP and port are just
 * separated by colons. This the standard to display addresses within Redis. */
int anetFormatAddr(char *buf, size_t buf_len, char *ip, int port) {
    return snprintf(buf,buf_len, strchr(ip,':') ?
           "[%s]:%d" : "%s:%d", ip, port);
}

/* Like anetFormatAddr() but extract ip and port from the socket's peer/sockname. */
int anetFormatFdAddr(int fd, char *buf, size_t buf_len, int fd_to_str_type) {