4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <sys/types.h>
38 #ifdef HAVE_SYS_SOCKET_H
39 #include <sys/socket.h>
44 #ifdef HAVE_NETINET_IN_H
45 #include <netinet/in.h>
47 #ifdef HAVE_NETINET_IN_SYSTM_H
48 #include <netinet/in_systm.h>
50 #ifdef HAVE_NETINET_IP_H
51 #include <netinet/ip.h>
53 #ifdef HAVE_NETINET_TCP_H
54 #include <netinet/tcp.h>
62 #include <polyp/xmalloc.h>
64 #include <polypcore/core-util.h>
65 #include <polypcore/log.h>
67 #include "socket-util.h"
69 void pa_socket_peer_to_string(int fd, char *c, size_t l) {
72 assert(c && l && fd >= 0);
75 if (fstat(fd, &st) < 0) {
76 snprintf(c, l, "Invalid client fd");
82 if (S_ISSOCK(st.st_mode)) {
86 struct sockaddr_in in;
88 struct sockaddr_un un;
91 socklen_t sa_len = sizeof(sa);
93 if (getpeername(fd, &sa.sa, &sa_len) >= 0) {
95 if (sa.sa.sa_family == AF_INET) {
96 uint32_t ip = ntohl(sa.in.sin_addr.s_addr);
98 snprintf(c, l, "TCP/IP client from %i.%i.%i.%i:%u",
103 ntohs(sa.in.sin_port));
106 } else if (sa.sa.sa_family == AF_UNIX) {
107 snprintf(c, l, "UNIX socket client");
114 snprintf(c, l, "Unknown network client");
116 } else if (S_ISCHR(st.st_mode) && (fd == 0 || fd == 1)) {
117 snprintf(c, l, "STDIN/STDOUT client");
120 #endif /* OS_IS_WIN32 */
122 snprintf(c, l, "Unknown client");
125 int pa_socket_low_delay(int fd) {
131 if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, (void*)&priority, sizeof(priority)) < 0)
138 int pa_socket_tcp_low_delay(int fd) {
143 ret = pa_socket_low_delay(fd);
148 #if defined(SOL_TCP) || defined(IPPROTO_TCP)
150 if (setsockopt(fd, SOL_TCP, TCP_NODELAY, (void*)&on, sizeof(on)) < 0)
152 if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on)) < 0)
157 #if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || \
159 tos = IPTOS_LOWDELAY;
161 if (setsockopt(fd, SOL_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0)
163 if (setsockopt(fd, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0)
172 int pa_socket_set_rcvbuf(int fd, size_t l) {
175 /* if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (void*)&l, sizeof(l)) < 0) { */
176 /* pa_log(__FILE__": SO_RCVBUF: %s", strerror(errno)); */
183 int pa_socket_set_sndbuf(int fd, size_t l) {
186 /* if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (void*)&l, sizeof(l)) < 0) { */
187 /* pa_log(__FILE__": SO_SNDBUF: %s", strerror(errno)); */
196 int pa_unix_socket_is_stale(const char *fn) {
197 struct sockaddr_un sa;
198 int fd = -1, ret = -1;
200 if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
201 pa_log(__FILE__": socket(): %s", strerror(errno));
205 sa.sun_family = AF_UNIX;
206 strncpy(sa.sun_path, fn, sizeof(sa.sun_path)-1);
207 sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
209 if (connect(fd, (struct sockaddr*) &sa, sizeof(sa)) < 0) {
210 if (errno == ECONNREFUSED)
222 int pa_unix_socket_remove_stale(const char *fn) {
225 if ((r = pa_unix_socket_is_stale(fn)) < 0)
226 return errno != ENOENT ? -1 : 0;
231 /* Yes, here is a race condition. But who cares? */
238 #else /* HAVE_SYS_UN_H */
240 int pa_unix_socket_is_stale(const char *fn) {
244 int pa_unix_socket_remove_stale(const char *fn) {
248 #endif /* HAVE_SYS_UN_H */