#include <stdlib.h>
#include <unistd.h>
#include <netdb.h>
+#include <poll.h> // for nfds_t
#include <tr_debug.h>
#include <tr_socket.h>
* @param max_fd maximum number of file descriptors to write
* @return number of file descriptors written into the output array
*/
-ssize_t listen_on_all_addrs(unsigned int port, int *fd_out, size_t max_fd)
+nfds_t tr_sock_listen_all(unsigned int port, int *fd_out, nfds_t max_fd)
{
int rc = 0;
int conn = -1;
.ai_protocol=IPPROTO_TCP
};
char *port_str=NULL;
- size_t n_opened=0;
+ nfds_t n_opened=0;
port_str=talloc_asprintf(NULL, "%d", port);
if (port_str==NULL) {
- tr_err("listen_on_all_addrs: unable to allocate port");
- return -1;
+ tr_err("tr_sock_listen_all: unable to allocate port");
+ return 0;
}
gai_retval = getaddrinfo(NULL, port_str, &hints, &ai_head);
talloc_free(port_str);
if (gai_retval != 0) {
- tr_err("listen_on_all_addrs: getaddrinfo() failed (%s)", gai_strerror(gai_retval));
- return -1;
+ tr_err("tr_sock_listen_all: getaddrinfo() failed (%s)", gai_strerror(gai_retval));
+ return 0;
}
- tr_debug("listen_on_all_addrs: got address info");
+ tr_debug("tr_sock_listen_all: got address info");
/* TODO: listen on all ports - I don't recall what this means (jlr, 4/11/2018) */
for (ai=ai_head,n_opened=0; (ai!=NULL)&&(n_opened<max_fd); ai=ai->ai_next) {
if (0 > (conn = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol))) {
- tr_debug("listen_on_all_addrs: unable to open socket");
+ tr_debug("tr_sock_listen_all: unable to open socket");
continue;
}
/* don't allow IPv4-mapped IPv6 addresses (per RFC4942, not sure
* if still relevant) */
if (0!=setsockopt(conn, IPPROTO_IPV6, IPV6_V6ONLY, &optval, sizeof(optval))) {
- tr_debug("listen_on_all_addrs: unable to set IPV6_V6ONLY, skipping interface");
+ tr_debug("tr_sock_listen_all: unable to set IPV6_V6ONLY, skipping interface");
close(conn);
continue;
}
rc=bind(conn, ai->ai_addr, ai->ai_addrlen);
if (rc<0) {
- tr_debug("listen_on_all_addrs: unable to bind to socket");
+ tr_debug("tr_sock_listen_all: unable to bind to socket");
close(conn);
continue;
}
if (0>listen(conn, 512)) {
- tr_debug("listen_on_all_addrs: unable to listen on bound socket");
+ tr_debug("tr_sock_listen_all: unable to listen on bound socket");
close(conn);
continue;
}
freeaddrinfo(ai_head);
if (n_opened==0) {
- tr_debug("listen_on_all_addrs: no addresses available for listening.");
- return -1;
+ tr_debug("tr_sock_listen_all: no addresses available for listening.");
+ return 0;
}
- tr_debug("listen_on_all_addrs: monitoring interface listening on port %d on %d socket%s",
+ tr_debug("tr_sock_listen_all: monitoring interface listening on port %d on %d socket%s",
port,
n_opened,
(n_opened==1)?"":"s");
return n_opened;
}
+