Squashed 'third_party/rawrtc/re/' content from commit f3163ce8b
Change-Id: I6a235e6ac0f03269d951026f9d195da05c40fdab
git-subtree-dir: third_party/rawrtc/re
git-subtree-split: f3163ce8b526a13b35ef71ce4dd6f43585064d8a
diff --git a/src/net/sockopt.c b/src/net/sockopt.c
new file mode 100644
index 0000000..2385a69
--- /dev/null
+++ b/src/net/sockopt.c
@@ -0,0 +1,112 @@
+/**
+ * @file sockopt.c Networking socket options
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <fcntl.h>
+#include <re_types.h>
+#include <re_fmt.h>
+#include <re_net.h>
+
+
+#define DEBUG_MODULE "sockopt"
+#define DEBUG_LEVEL 5
+#include <re_dbg.h>
+
+
+/** Platform independent buffer type cast */
+#ifdef WIN32
+#define BUF_CAST (char *)
+#else
+#define BUF_CAST
+#endif
+
+
+/**
+ * Set socket option blocking or non-blocking
+ *
+ * @param fd Socket file descriptor
+ * @param blocking true for blocking, false for non-blocking
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int net_sockopt_blocking_set(int fd, bool blocking)
+{
+#ifdef WIN32
+ unsigned long noblock = !blocking;
+ int err = 0;
+
+ if (0 != ioctlsocket(fd, FIONBIO, &noblock)) {
+ err = WSAGetLastError();
+ DEBUG_WARNING("nonblock set: fd=%d err=%d (%m)\n",
+ fd, err, err);
+ }
+ return err;
+#else
+ int flags;
+ int err = 0;
+
+ flags = fcntl(fd, F_GETFL);
+ if (-1 == flags) {
+ err = errno;
+ DEBUG_WARNING("sockopt set: fnctl F_GETFL: (%m)\n", err);
+ goto out;
+ }
+
+ if (blocking)
+ flags &= ~O_NONBLOCK;
+ else
+ flags |= O_NONBLOCK;
+
+ if (-1 == fcntl(fd, F_SETFL, flags)) {
+ err = errno;
+ DEBUG_WARNING("sockopt set: fcntl F_SETFL non-block (%m)\n",
+ err);
+ }
+
+ out:
+ return err;
+#endif
+}
+
+
+/**
+ * Set socket option to reuse address and port
+ *
+ * @param fd Socket file descriptor
+ * @param reuse true for reuse, false for no reuse
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int net_sockopt_reuse_set(int fd, bool reuse)
+{
+ int r = reuse;
+
+#ifdef SO_REUSEADDR
+ if (-1 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
+ BUF_CAST &r, sizeof(r))) {
+ DEBUG_WARNING("SO_REUSEADDR: %m\n", errno);
+ return errno;
+ }
+#endif
+
+#ifdef SO_REUSEPORT
+ if (-1 == setsockopt(fd, SOL_SOCKET, SO_REUSEPORT,
+ BUF_CAST &r, sizeof(r))) {
+ DEBUG_INFO("SO_REUSEPORT: %m\n", errno);
+ return errno;
+ }
+#endif
+
+#if !defined(SO_REUSEADDR) && !defined(SO_REUSEPORT)
+ (void)r;
+ (void)fd;
+ (void)reuse;
+ return ENOSYS;
+#else
+ return 0;
+#endif
+}