smbwrapper: Remove smbwrapper

There are now many better ways to access a remote SMB filesystem,
which do not rely on LD_PRELOAD and the associated dangers.  FUSE,
gvfs and the CIFS VFS are all much better options which do not require
knowing every possible libc entry point that can deal with a file
descriptor.

As an example of the maintainence that would be required to keep this
going, recent changes to deal with thread races and close-on-exec have
resulted in dup3(), but this isn't currently mapped.  While this would
not be hard to add, it illistrates why it is better to move to an
interface designed for this task.

Andrew Bartlett

Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Thu Feb  9 01:58:24 CET 2012 on sn-devel-104

1 files changed, 0 insertions, 122 deletions

diff --git a/examples/libsmbclient/smbwrapper/select.c b/examples/libsmbclient/smbwrapper/select.c
deleted file mode 100644
index bb7a25f13e..0000000000
--- a/examples/libsmbclient/smbwrapper/select.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/* 
-   Unix SMB/Netbios implementation.
-   Version 3.0
-   Samba select/poll implementation
-   Copyright (C) Andrew Tridgell 1992-1998
-   Copyright (C) Derrell Lipman 2003-2005
-   
-   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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
- * WHY THIS FILE?
- *
- * This file implements the two functions in the select() family, as required
- * by samba.  The samba native functions, though, implement a pipe to help
- * alleviate a deadlock problem, but which creates problems of its own (the
- * timeout stops working correctly).  Those functions also require that all
- * signal handlers call a function which writes to the pipe -- a task which is
- * difficult to do in the smbwrapper environment.
- */
-
-
-#include <sys/select.h>
-#include <errno.h>
-#include <stdio.h>
-
-int sys_select(int maxfd, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *tval)
-{
-        int ret;
-	fd_set *readfds2, readfds_buf;
-
-	/* If readfds is NULL we need to provide our own set. */
-	if (readfds) {
-		readfds2 = readfds;
-	} else {
-		readfds2 = &readfds_buf;
-		FD_ZERO(readfds2);
-	}
-
-	errno = 0;
-	ret = select(maxfd,readfds2,writefds,errorfds,tval);
-
-	if (ret <= 0) {
-		FD_ZERO(readfds2);
-		if (writefds)
-			FD_ZERO(writefds);
-		if (errorfds)
-			FD_ZERO(errorfds);
-	}
-
-	return ret;
-}
-
-/*******************************************************************
- Similar to sys_select() but catch EINTR and continue.
- This is what sys_select() used to do in Samba.
-********************************************************************/
-
-int sys_select_intr(int maxfd, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *tval)
-{
-	int ret;
-	fd_set *readfds2, readfds_buf, *writefds2, writefds_buf, *errorfds2, errorfds_buf;
-	struct timeval tval2, *ptval, end_time, now_time;
-
-	readfds2 = (readfds ? &readfds_buf : NULL);
-	writefds2 = (writefds ? &writefds_buf : NULL);
-	errorfds2 = (errorfds ? &errorfds_buf : NULL);
-        if (tval) {
-                gettimeofday(&end_time, NULL);
-                end_time.tv_sec += tval->tv_sec;
-                end_time.tv_usec += tval->tv_usec;
-                end_time.tv_sec += end_time.tv_usec / 1000000;
-                end_time.tv_usec %= 1000000;
-                ptval = &tval2;
-        } else {
-                ptval = NULL;
-        }
-
-	do {
-		if (readfds)
-			readfds_buf = *readfds;
-		if (writefds)
-			writefds_buf = *writefds;
-		if (errorfds)
-			errorfds_buf = *errorfds;
-		if (tval) {
-                        gettimeofday(&now_time, NULL);
-                        tval2.tv_sec = end_time.tv_sec - now_time.tv_sec;
-			tval2.tv_usec = end_time.tv_usec - now_time.tv_usec;
-                        if ((signed long) tval2.tv_usec < 0) {
-                                tval2.tv_usec += 1000000;
-                                tval2.tv_sec--;
-                        }
-                        if ((signed long) tval2.tv_sec < 0) {
-                                ret = 0;
-                                break;          /* time has already elapsed */
-                        }
-                }
-
-		ret = sys_select(maxfd, readfds2, writefds2, errorfds2, ptval);
-	} while (ret == -1 && errno == EINTR);
-
-	if (readfds)
-		*readfds = readfds_buf;
-	if (writefds)
-		*writefds = writefds_buf;
-	if (errorfds)
-		*errorfds = errorfds_buf;
-
-	return ret;
-}