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-rw-r--r--source3/lib/sock_exec.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/source3/lib/sock_exec.c b/source3/lib/sock_exec.c
new file mode 100644
index 0000000000..52c5a8ce52
--- /dev/null
+++ b/source3/lib/sock_exec.c
@@ -0,0 +1,115 @@
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+ Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Tim Potter 2000-2001
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/*******************************************************************
+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_in 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, (struct sockaddr *)&sock, &socklen) != 0) goto failed;
+
+ if ((fd[1] = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;
+
+ set_blocking(fd[1], 0);
+
+ sock.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ if (connect(fd[1],(struct sockaddr *)&sock,sizeof(sock)) == -1) {
+ if (errno != EINPROGRESS) goto failed;
+ } else {
+ connect_done = 1;
+ }
+
+ if ((fd[0] = accept(listener, (struct sockaddr *)&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) {
+ DEBUG(0,("socketpair_tcp failed (%s)\n", strerror(errno)));
+ 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];
+}