From d743c48c9ca851dd6f0239435cb2167eb02b63d7 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Wed, 27 Jun 2001 17:26:17 +0000
Subject: [PATCH] Merge in HEAD build changes. Jeremy.

---
 source/lib/util_sock.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)

diff --git a/source/lib/util_sock.c b/source/lib/util_sock.c
index 9045e60111f..ccbc86bb0bd 100644
--- a/source/lib/util_sock.c
+++ b/source/lib/util_sock.c
@@ -1144,3 +1144,92 @@ int create_pipe_socket(char *dir, int dir_perms,
 
 	return s;
 }
+
+/*******************************************************************
+this is like socketpair but uses tcp. It is used by the Samba
+regression test code
+The function guarantees that nobody else can attach to the socket,
+or if they do that this function fails and the socket gets closed
+returns 0 on success, -1 on failure
+the resulting file descriptors are symmetrical
+ ******************************************************************/
+static int socketpair_tcp(int fd[2])
+{
+	int listener;
+	struct sockaddr sock;
+	struct sockaddr_in sock2;
+	socklen_t socklen = sizeof(sock);
+	int connect_done = 0;
+	
+	fd[0] = fd[1] = listener = -1;
+
+	memset(&sock, 0, sizeof(sock));
+	
+	if ((listener = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;
+
+        memset(&sock2, 0, sizeof(sock2));
+#ifdef HAVE_SOCK_SIN_LEN
+        sock2.sin_len = sizeof(sock2);
+#endif
+        sock2.sin_family = PF_INET;
+
+        bind(listener, (struct sockaddr *)&sock2, sizeof(sock2));
+
+	if (listen(listener, 1) != 0) goto failed;
+
+	if (getsockname(listener, &sock, &socklen) != 0) goto failed;
+
+	if ((fd[1] = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;
+
+	set_blocking(fd[1], 0);
+
+	if (connect(fd[1],(struct sockaddr *)&sock,sizeof(sock)) == -1) {
+		if (errno != EINPROGRESS) goto failed;
+	} else {
+		connect_done = 1;
+	}
+
+	if ((fd[0] = accept(listener, &sock, &socklen)) == -1) goto failed;
+
+	close(listener);
+	if (connect_done == 0) {
+		if (connect(fd[1],(struct sockaddr *)&sock,sizeof(sock)) != 0
+		    && errno != EISCONN) goto failed;
+	}
+
+	set_blocking(fd[1], 1);
+
+	/* all OK! */
+	return 0;
+
+ failed:
+	if (fd[0] != -1) close(fd[0]);
+	if (fd[1] != -1) close(fd[1]);
+	if (listener != -1) close(listener);
+	return -1;
+}
+
+
+/*******************************************************************
+run a program on a local tcp socket, this is used to launch smbd
+when regression testing
+the return value is a socket which is attached to a subprocess
+running "prog". stdin and stdout are attached. stderr is left
+attached to the original stderr
+ ******************************************************************/
+int sock_exec(const char *prog)
+{
+	int fd[2];
+	if (socketpair_tcp(fd) != 0) return -1;
+	if (fork() == 0) {
+		close(fd[0]);
+		close(0);
+		close(1);
+		dup(fd[1]);
+		dup(fd[1]);
+		exit(system(prog));
+	}
+	close(fd[1]);
+	return fd[0];
+}
+
-- 
2.11.4.GIT