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Diffstat (limited to 'source4/build/tests/unixsock.c')
-rw-r--r--source4/build/tests/unixsock.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/source4/build/tests/unixsock.c b/source4/build/tests/unixsock.c
new file mode 100644
index 0000000000..f2765d68f6
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+++ b/source4/build/tests/unixsock.c
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+/* -*- c-file-style: "linux" -*-
+ *
+ * Try creating a Unix-domain socket, opening it, and reading from it.
+ * The POSIX name for these is AF_LOCAL/PF_LOCAL.
+ *
+ * This is used by the Samba autoconf scripts to detect systems which
+ * don't have Unix-domain sockets, such as (probably) VMS, or systems
+ * on which they are broken under some conditions, such as RedHat 7.0
+ * (unpatched). We can't build WinBind there at the moment.
+ *
+ * Coding standard says to always use exit() for this, not return, so
+ * we do.
+ *
+ * Martin Pool <mbp@samba.org>, June 2000. */
+
+/* TODO: Look for AF_LOCAL (most standard), AF_UNIX, and AF_FILE. */
+
+#include <stdio.h>
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+#ifdef HAVE_SYS_UN_H
+# include <sys/un.h>
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#if HAVE_SYS_WAIT_H
+# include <sys/wait.h>
+#endif
+
+#if HAVE_ERRNO_DECL
+# include <errno.h>
+#else
+extern int errno;
+#endif
+
+static int bind_socket(char const *filename)
+{
+ int sock_fd;
+ struct sockaddr_un name;
+ size_t size;
+
+ /* Create the socket. */
+ if ((sock_fd = socket(PF_LOCAL, SOCK_STREAM, 0)) < 0) {
+ perror ("socket(PF_LOCAL, SOCK_STREAM)");
+ exit(1);
+ }
+
+ /* Bind a name to the socket. */
+ name.sun_family = AF_LOCAL;
+ strncpy(name.sun_path, filename, sizeof (name.sun_path));
+
+ /* The size of the address is
+ the offset of the start of the filename,
+ plus its length,
+ plus one for the terminating null byte.
+ Alternatively you can just do:
+ size = SUN_LEN (&name);
+ */
+ size = SUN_LEN(&name);
+ /* XXX: This probably won't work on unfriendly libcs */
+
+ if (bind(sock_fd, (struct sockaddr *) &name, size) < 0) {
+ perror ("bind");
+ exit(1);
+ }
+
+ return sock_fd;
+}
+
+
+int main(void)
+{
+ int sock_fd;
+ int kid;
+ char const *filename = "conftest.unixsock.sock";
+
+ /* abolish hanging */
+ alarm(15); /* secs */
+
+ if ((sock_fd = bind_socket(filename)) < 0)
+ exit(1);
+
+ /* the socket will be deleted when autoconf cleans up these
+ files. */
+
+ exit(0);
+}