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Add IPV6 support to listen_sock()

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This commit is contained in:
Mukund Sivaraman 2009-11-09 01:13:41 +05:30
parent 25057baf54
commit c978015af1
1 changed files with 35 additions and 15 deletions
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50
src/sock.c
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@ -166,41 +166,61 @@ int socket_blocking (int sock)
*/
int listen_sock (uint16_t port, socklen_t * addrlen)
{
struct addrinfo hints, *result, *rp;
char portstr[32];
int listenfd;
const int on = 1;
struct sockaddr_in addr;
assert (port > 0);
assert (addrlen != NULL);
listenfd = socket (AF_INET, SOCK_STREAM, 0);
setsockopt (listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on));
memset (&hints, 0, sizeof (struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
memset (&addr, 0, sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = htons (port);
sprintf (portstr, "%6d", port);
if (config.ipAddr) {
addr.sin_addr.s_addr = inet_addr (config.ipAddr);
} else {
addr.sin_addr.s_addr = inet_addr ("0.0.0.0");
}
if (bind (listenfd, (struct sockaddr *) &addr, sizeof (addr)) < 0) {
if (getaddrinfo (config.ipAddr, portstr, &hints, &result) != 0) {
log_message (LOG_ERR,
"Unable to bind listening socket because of %s",
"Unable to getaddrinfo() because of %s",
strerror (errno));
return -1;
}
for (rp = result; rp != NULL; rp = rp->ai_next) {
listenfd = socket (rp->ai_family, rp->ai_socktype,
rp->ai_protocol);
if (listenfd == -1)
continue;
if (bind (listenfd, rp->ai_addr, rp->ai_addrlen) == 0)
break; /* success */
}
if (rp == NULL) {
/* was not able to bind to any address */
log_message (LOG_ERR,
"Unable to bind listening socket "
"to any address.");
freeaddrinfo (result);
return -1;
}
setsockopt (listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on));
if (listen (listenfd, MAXLISTEN) < 0) {
log_message (LOG_ERR,
"Unable to start listening socket because of %s",
strerror (errno));
freeaddrinfo (result);
return -1;
}
*addrlen = sizeof (addr);
*addrlen = rp->ai_addrlen;
freeaddrinfo (result);
return listenfd;
}