From: Vsevolod Stakhov <vsevolod@rambler-co.ru>
Date: Thu, 13 Oct 2011 11:32:37 +0000 (+0400)
Subject: Add make_socketpair utility function.
X-Git-Tag: 0.4.5~59
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45732c640a5bb310ffc2e67b520eb008f516c899;p=thirdparty%2Frspamd.git

Add make_socketpair utility function.
---

diff --git a/src/util.c b/src/util.c
index 277806721a..9956b8da06 100644
--- a/src/util.c
+++ b/src/util.c
@@ -279,6 +279,37 @@ make_unix_socket (const gchar *path, struct sockaddr_un *addr, gboolean is_serve
 	return (-1);
 }
 
+gint
+make_socketpair (gint pair[2])
+{
+	gint                            s_error, r, optlen, serrno, on = 1;
+
+	r = socketpair (PF_LOCAL, SOCK_STREAM, 0, pair);
+
+	if (r == -1) {
+		msg_warn ("socketpair failed: %d, '%s'", errno, strerror (errno));
+		return -1;
+	}
+	/* Set close on exec */
+	if (fcntl (pair[0], F_SETFD, FD_CLOEXEC) == -1) {
+		msg_warn ("fcntl failed: %d, '%s'", errno, strerror (errno));
+		goto out;
+	}
+	if (fcntl (pair[1], F_SETFD, FD_CLOEXEC) == -1) {
+		msg_warn ("fcntl failed: %d, '%s'", errno, strerror (errno));
+		goto out;
+	}
+
+	return 0;
+
+out:
+	serrno = errno;
+	close (pair[0]);
+	close (pair[1]);
+	errno = serrno;
+	return (-1);
+}
+
 gint
 write_pid (struct rspamd_main *main)
 {
diff --git a/src/util.h b/src/util.h
index 3e5985d1bf..7a5a00915c 100644
--- a/src/util.h
+++ b/src/util.h
@@ -46,6 +46,11 @@ gint accept_from_socket (gint listen_sock, struct sockaddr *addr, socklen_t *len
  */
 gint make_unix_socket (const gchar *, struct sockaddr_un *, gboolean is_server);
 
+/*
+ * Create socketpair
+ */
+gint make_socketpair (gint pair[2]);
+
 /*
  * Write pid to file
  */