From ccfd55420ebec191d7a3ed842ecb2740ceeb76ba Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sun, 11 Jul 2004 01:09:46 +0000
Subject: add dependency script fix some dependencies split off socket-util.c
 and clitext.c

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@60 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/socket-util.c | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 src/socket-util.c

(limited to 'src/socket-util.c')

diff --git a/src/socket-util.c b/src/socket-util.c
new file mode 100644
index 00000000..f9451af8
--- /dev/null
+++ b/src/socket-util.c
@@ -0,0 +1,152 @@
+#include <stdarg.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <netinet/tcp.h>
+#include <netinet/ip.h>
+
+#include "socket-util.h"
+
+void pa_socket_peer_to_string(int fd, char *c, size_t l) {
+    struct stat st;
+
+    assert(c && l && fd >= 0);
+    
+    if (fstat(fd, &st) < 0) {
+        snprintf(c, l, "Invalid client fd");
+        return;
+    }
+
+    if (S_ISSOCK(st.st_mode)) {
+        union {
+            struct sockaddr sa;
+            struct sockaddr_in in;
+            struct sockaddr_un un;
+        } sa;
+        socklen_t sa_len = sizeof(sa);
+        
+        if (getpeername(fd, &sa.sa, &sa_len) >= 0) {
+
+            if (sa.sa.sa_family == AF_INET) {
+                uint32_t ip = ntohl(sa.in.sin_addr.s_addr);
+                
+                snprintf(c, l, "TCP/IP client from %i.%i.%i.%i:%u",
+                         ip >> 24,
+                         (ip >> 16) & 0xFF,
+                         (ip >> 8) & 0xFF,
+                         ip & 0xFF,
+                         ntohs(sa.in.sin_port));
+                return;
+            } else if (sa.sa.sa_family == AF_LOCAL) {
+                snprintf(c, l, "UNIX socket client");
+                return;
+            }
+
+        }
+        snprintf(c, l, "Unknown network client");
+        return;
+    } else if (S_ISCHR(st.st_mode) && (fd == 0 || fd == 1)) {
+        snprintf(c, l, "STDIN/STDOUT client");
+        return;
+    }
+
+    snprintf(c, l, "Unknown client");
+}
+
+int pa_socket_low_delay(int fd) {
+    int priority;
+    assert(fd >= 0);
+
+    priority = 7;
+    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority)) < 0)
+        return -1;
+
+    return 0;
+}
+
+int pa_socket_tcp_low_delay(int fd) {
+    int ret, tos;
+
+    assert(fd >= 0);
+
+    ret = pa_socket_low_delay(fd);
+    
+/*     on = 1; */
+/*     if (setsockopt(fd, SOL_TCP, TCP_NODELAY, &on, sizeof(on)) < 0) */
+/*         ret = -1; */
+
+    tos = IPTOS_LOWDELAY;
+    if (setsockopt(fd, SOL_IP, IP_TOS, &tos, sizeof(tos)) < 0)
+        ret = -1;
+
+    return ret;
+
+}
+
+int pa_socket_set_rcvbuf(int fd, size_t l) {
+    assert(fd >= 0);
+
+    if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &l, sizeof(l)) < 0)
+        return -1;
+
+    return 0;
+}
+
+int pa_socket_set_sndbuf(int fd, size_t l) {
+    assert(fd >= 0);
+
+    if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &l, sizeof(l)) < 0)
+        return -1;
+
+    return 0;
+}
+
+int pa_unix_socket_is_stale(const char *fn) {
+    struct sockaddr_un sa;
+    int fd = -1, ret = -1;
+
+    if ((fd = socket(PF_LOCAL, SOCK_STREAM, 0)) < 0) {
+        fprintf(stderr, "socket(): %s\n", strerror(errno));
+        goto finish;
+    }
+
+    sa.sun_family = AF_LOCAL;
+    strncpy(sa.sun_path, fn, sizeof(sa.sun_path)-1);
+    sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
+
+    if (connect(fd, (struct sockaddr*) &sa, sizeof(sa)) < 0) {
+        if (errno == ECONNREFUSED)
+            ret = 1;
+    } else
+        ret = 0;
+
+finish:
+    if (fd >= 0)
+        close(fd);
+
+    return ret;
+}
+
+int pa_unix_socket_remove_stale(const char *fn) {
+    int r;
+    
+    if ((r = pa_unix_socket_is_stale(fn)) < 0)
+        return errno != ENOENT ? -1 : 0;
+
+    if (!r)
+        return 0;
+        
+    /* Yes, here is a race condition. But who cares? */
+    if (unlink(fn) < 0)
+        return -1;
+
+    return 0;
+}
-- 
cgit