mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-02 09:01:46 -05:00
c470680e1b
Automatically use replacement function on platforms (win32) where not all arpa/inet.h is available natively.
323 lines
7.7 KiB
C
323 lines
7.7 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2004 Joe Marcus Clarke
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Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdarg.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_NETINET_IN_SYSTM_H
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#include <netinet/in_systm.h>
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#endif
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#ifdef HAVE_NETINET_IP_H
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#include <netinet/ip.h>
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#endif
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#ifdef HAVE_NETINET_TCP_H
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#include <netinet/tcp.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#include <pulse/xmalloc.h>
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#include <pulsecore/core-error.h>
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#include <pulsecore/core-util.h>
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#include <pulsecore/log.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/socket.h>
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#include <pulsecore/arpa-inet.h>
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#include "socket-util.h"
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void pa_socket_peer_to_string(int fd, char *c, size_t l) {
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struct stat st;
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pa_assert(fd >= 0);
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pa_assert(c);
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pa_assert(l > 0);
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#ifndef OS_IS_WIN32
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pa_assert_se(fstat(fd, &st) == 0);
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if (S_ISSOCK(st.st_mode)) {
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#endif
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union {
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struct sockaddr_storage storage;
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struct sockaddr sa;
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struct sockaddr_in in;
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#ifdef HAVE_IPV6
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struct sockaddr_in6 in6;
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#endif
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#ifdef HAVE_SYS_UN_H
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struct sockaddr_un un;
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#endif
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} sa;
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socklen_t sa_len = sizeof(sa);
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if (getpeername(fd, &sa.sa, &sa_len) >= 0) {
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if (sa.sa.sa_family == AF_INET) {
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uint32_t ip = ntohl(sa.in.sin_addr.s_addr);
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pa_snprintf(c, l, "TCP/IP client from %i.%i.%i.%i:%u",
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ip >> 24,
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(ip >> 16) & 0xFF,
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(ip >> 8) & 0xFF,
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ip & 0xFF,
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ntohs(sa.in.sin_port));
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return;
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#ifdef HAVE_IPV6
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} else if (sa.sa.sa_family == AF_INET6) {
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char buf[INET6_ADDRSTRLEN];
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const char *res;
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res = inet_ntop(AF_INET6, &sa.in6.sin6_addr, buf, sizeof(buf));
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if (res) {
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pa_snprintf(c, l, "TCP/IP client from [%s]:%u", buf, ntohs(sa.in6.sin6_port));
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return;
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}
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#endif
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#ifdef HAVE_SYS_UN_H
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} else if (sa.sa.sa_family == AF_UNIX) {
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pa_snprintf(c, l, "UNIX socket client");
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return;
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#endif
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}
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}
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#ifndef OS_IS_WIN32
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pa_snprintf(c, l, "Unknown network client");
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return;
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} else if (S_ISCHR(st.st_mode) && (fd == 0 || fd == 1)) {
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pa_snprintf(c, l, "STDIN/STDOUT client");
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return;
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}
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#endif /* OS_IS_WIN32 */
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pa_snprintf(c, l, "Unknown client");
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}
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void pa_make_socket_low_delay(int fd) {
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#ifdef SO_PRIORITY
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int priority;
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pa_assert(fd >= 0);
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priority = 6;
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if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority)) < 0)
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pa_log_warn("SO_PRIORITY failed: %s", pa_cstrerror(errno));
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#endif
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}
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void pa_make_tcp_socket_low_delay(int fd) {
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pa_assert(fd >= 0);
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pa_make_socket_low_delay(fd);
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#if defined(SOL_TCP) || defined(IPPROTO_TCP)
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{
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int on = 1;
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#if defined(SOL_TCP)
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if (setsockopt(fd, SOL_TCP, TCP_NODELAY, &on, sizeof(on)) < 0)
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#else
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if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)) < 0)
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#endif
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pa_log_warn("TCP_NODELAY failed: %s", pa_cstrerror(errno));
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}
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#endif
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#if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || defined(IPPROTO_IP))
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{
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int tos = IPTOS_LOWDELAY;
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#ifdef SOL_IP
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if (setsockopt(fd, SOL_IP, IP_TOS, &tos, sizeof(tos)) < 0)
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#else
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if (setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
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#endif
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pa_log_warn("IP_TOS failed: %s", pa_cstrerror(errno));
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}
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#endif
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}
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void pa_make_udp_socket_low_delay(int fd) {
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pa_assert(fd >= 0);
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pa_make_socket_low_delay(fd);
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#if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || defined(IPPROTO_IP))
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{
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int tos = IPTOS_LOWDELAY;
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#ifdef SOL_IP
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if (setsockopt(fd, SOL_IP, IP_TOS, &tos, sizeof(tos)) < 0)
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#else
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if (setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
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#endif
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pa_log_warn("IP_TOS failed: %s", pa_cstrerror(errno));
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}
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#endif
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}
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int pa_socket_set_rcvbuf(int fd, size_t l) {
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int bufsz = (int) l;
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pa_assert(fd >= 0);
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if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &bufsz, sizeof(bufsz)) < 0) {
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pa_log_warn("SO_RCVBUF: %s", pa_cstrerror(errno));
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return -1;
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}
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return 0;
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}
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int pa_socket_set_sndbuf(int fd, size_t l) {
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int bufsz = (int) l;
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pa_assert(fd >= 0);
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if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &bufsz, sizeof(bufsz)) < 0) {
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pa_log_warn("SO_SNDBUF: %s", pa_cstrerror(errno));
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return -1;
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}
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return 0;
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}
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#ifdef HAVE_SYS_UN_H
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int pa_unix_socket_is_stale(const char *fn) {
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struct sockaddr_un sa;
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int fd = -1, ret = -1;
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pa_assert(fn);
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if ((fd = pa_socket_cloexec(PF_UNIX, SOCK_STREAM, 0)) < 0) {
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pa_log("socket(): %s", pa_cstrerror(errno));
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goto finish;
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}
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sa.sun_family = AF_UNIX;
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strncpy(sa.sun_path, fn, sizeof(sa.sun_path)-1);
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sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
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if (connect(fd, (struct sockaddr*) &sa, sizeof(sa)) < 0) {
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if (errno == ECONNREFUSED)
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ret = 1;
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} else
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ret = 0;
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finish:
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if (fd >= 0)
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pa_close(fd);
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return ret;
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}
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int pa_unix_socket_remove_stale(const char *fn) {
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int r;
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pa_assert(fn);
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if ((r = pa_unix_socket_is_stale(fn)) < 0)
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return errno != ENOENT ? -1 : 0;
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if (!r)
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return 0;
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/* Yes, here is a race condition. But who cares? */
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if (unlink(fn) < 0)
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return -1;
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return 0;
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}
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#else /* HAVE_SYS_UN_H */
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int pa_unix_socket_is_stale(const char *fn) {
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return -1;
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}
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int pa_unix_socket_remove_stale(const char *fn) {
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return -1;
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}
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#endif /* HAVE_SYS_UN_H */
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pa_bool_t pa_socket_address_is_local(const struct sockaddr *sa) {
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pa_assert(sa);
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switch (sa->sa_family) {
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case AF_UNIX:
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return TRUE;
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case AF_INET:
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return ((const struct sockaddr_in*) sa)->sin_addr.s_addr == INADDR_LOOPBACK;
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#ifdef HAVE_IPV6
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case AF_INET6:
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return memcmp(&((const struct sockaddr_in6*) sa)->sin6_addr, &in6addr_loopback, sizeof(struct in6_addr)) == 0;
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#endif
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default:
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return FALSE;
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}
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}
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pa_bool_t pa_socket_is_local(int fd) {
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union {
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struct sockaddr_storage storage;
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struct sockaddr sa;
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struct sockaddr_in in;
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#ifdef HAVE_IPV6
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struct sockaddr_in6 in6;
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#endif
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#ifdef HAVE_SYS_UN_H
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struct sockaddr_un un;
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#endif
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} sa;
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socklen_t sa_len = sizeof(sa);
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if (getpeername(fd, &sa.sa, &sa_len) < 0)
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return FALSE;
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return pa_socket_address_is_local(&sa.sa);
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}
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