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, 355 deletions

diff --git a/examples/libsmbclient/smbwrapper/smbw_dir.c b/examples/libsmbclient/smbwrapper/smbw_dir.c
deleted file mode 100644
index 6e473bf0a3..0000000000
--- a/examples/libsmbclient/smbwrapper/smbw_dir.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/* 
-   Unix SMB/Netbios implementation.
-   Version 2.0
-   SMB wrapper directory functions
-   Copyright (C) Andrew Tridgell 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/>.
-*/
-
-#include "smbw.h"
-#include "bsd-strlfunc.h"
-
-/***************************************************** 
-determine if a directory handle is a smb one
-*******************************************************/
-int smbw_dirp(DIR * dirp)
-{
-        return ((char *) dirp >= (char *) smbw_fd_map &&
-                (char *) dirp < (char *) &smbw_fd_map[__FD_SETSIZE] &&
-                *(int *) dirp != -1);
-}
-
-
-/***************************************************** 
-a wrapper for getdents()
-*******************************************************/
-int smbw_getdents(unsigned int fd_smbw,
-                  struct SMBW_dirent *dirent_external,
-                  int count)
-{
-        int remaining;
-        int fd_client = smbw_fd_map[fd_smbw];
-        struct smbc_dirent *dirent_internal;
-
-
-        for (remaining = count;
-             remaining > sizeof(struct SMBW_dirent);
-             dirent_external++) {
-
-                /*
-                 * We do these one at a time because there's otherwise no way
-                 * to limit how many smbc_getdents() will return for us, and
-                 * if it returns too many, it also doesn't give us offsets to
-                 * be able to seek back to where we need to be.  In practice,
-                 * this one-at-a-time retrieval isn't a problem because the
-                 * time-consuming network transaction is all done at
-                 * smbc_opendir() time.
-                 */
-                dirent_internal = smbc_readdir(fd_client);
-                if (dirent_internal == NULL) {
-                        break;
-                }
-
-                remaining -= sizeof(struct SMBW_dirent);
-
-                dirent_external->d_ino = -1; /* not supported */
-		dirent_external->d_off = smbc_telldir(fd_client);
-		dirent_external->d_reclen = sizeof(struct SMBW_dirent);
-                dirent_external->d_type = dirent_internal->smbc_type;
-
-                smbw_strlcpy(dirent_external->d_name,
-                             dirent_internal->name,
-                             sizeof(dirent_external->d_name) - 1);
-                smbw_strlcpy(dirent_external->d_comment,
-                             dirent_internal->comment,
-                             sizeof(dirent_external->d_comment) - 1);
-	}
-
-	return(count - remaining);
-}
-
-
-/***************************************************** 
-a wrapper for chdir()
-*******************************************************/
-int smbw_chdir(const char *name)
-{
-        int simulate;
-        struct stat statbuf;
-        char path[PATH_MAX];
-        char *p;
-
-	SMBW_INIT();
-
-	if (!name) {
-		errno = EINVAL;
-                return -1;
-	}
-
-	if (! smbw_path((char *) name)) {
-		if ((* smbw_libc.chdir)(name) == 0) {
-                        *smbw_cwd = '\0';
-                        return 0;
-		}
-
-                return -1;
-	}
-
-        smbw_fix_path(name, path);
-
-        /* ensure it exists */
-        p = path + 6;           /* look just past smb:// */
-        simulate = (strchr(p, '/') == NULL);
-
-        /* special case for full-network scan, workgroups, and servers */
-        if (! simulate) {
-            
-            if (smbc_stat(path, &statbuf) < 0) {
-                return -1;
-            }
-            
-            /* ensure it's a directory */
-            if (! S_ISDIR(statbuf.st_mode)) {
-                errno = ENOTDIR;
-                return -1;
-            }
-        }
-
-        smbw_strlcpy(smbw_cwd, path, PATH_MAX);
-
-	/* we don't want the old directory to be busy */
-	(* smbw_libc.chdir)("/");
-
-	return 0;
-}
-
-
-/***************************************************** 
-a wrapper for mkdir()
-*******************************************************/
-int smbw_mkdir(const char *fname, mode_t mode)
-{
-        char path[PATH_MAX];
-
-	if (!fname) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	SMBW_INIT();
-
-        smbw_fix_path(fname, path);
-        return smbc_mkdir(path, mode);
-}
-
-/***************************************************** 
-a wrapper for rmdir()
-*******************************************************/
-int smbw_rmdir(const char *fname)
-{
-        char path[PATH_MAX];
-
-	if (!fname) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	SMBW_INIT();
-
-        smbw_fix_path(fname, path);
-        return smbc_rmdir(path);
-}
-
-
-/***************************************************** 
-a wrapper for getcwd()
-*******************************************************/
-char *smbw_getcwd(char *buf, size_t size)
-{
-	SMBW_INIT();
-
-        if (*smbw_cwd == '\0') {
-                return (* smbw_libc.getcwd)(buf, size);
-        }
-
-        if (buf == NULL) {
-                if (size == 0) {
-                        size = strlen(smbw_cwd) + 1;
-                }
-                buf = malloc(size);
-                if (buf == NULL) {
-                        errno = ENOMEM;
-                        return NULL;
-                }
-        }
-
-        smbw_strlcpy(buf, smbw_cwd, size);
-        buf[size-1] = '\0';
-	return buf;
-}
-
-/***************************************************** 
-a wrapper for fchdir()
-*******************************************************/
-int smbw_fchdir(int fd_smbw)
-{
-        int ret;
-
-        SMBW_INIT();
-
-        if (! smbw_fd(fd_smbw)) {
-                ret = (* smbw_libc.fchdir)(fd_smbw);
-                (void) (* smbw_libc.getcwd)(smbw_cwd, PATH_MAX);
-                return ret;
-        }
-
-        errno = EACCES;
-        return -1;
-}
-
-/***************************************************** 
-open a directory on the server
-*******************************************************/
-DIR *smbw_opendir(const char *fname)
-{
-        int fd_client;
-        int fd_smbw;
-	char path[PATH_MAX];
-        DIR * dirp;
-
-	SMBW_INIT();
-
-	if (!fname) {
-		errno = EINVAL;
-		return NULL;
-	}
-
-	fd_smbw = (smbw_libc.open)(SMBW_DUMMY, O_WRONLY, 0200);
-	if (fd_smbw == -1) {
-		errno = EMFILE;
-                return NULL;
-	}
-
-        smbw_fix_path(fname, path);
-        fd_client =  smbc_opendir(path);
-
-        if (fd_client < 0) {
-                (* smbw_libc.close)(fd_smbw);
-                return NULL;
-        }
-
-        smbw_fd_map[fd_smbw] = fd_client;
-        smbw_ref(fd_client, SMBW_RCT_Increment);
-        dirp = (DIR *) &smbw_fd_map[fd_smbw];
-        return dirp;
-}
-
-/***************************************************** 
-read one entry from a directory
-*******************************************************/
-struct SMBW_dirent *smbw_readdir(DIR *dirp)
-{
-        int fd_smbw;
-        int fd_client;
-        struct smbc_dirent *dirent_internal;
-        static struct SMBW_dirent dirent_external;
-
-        fd_smbw = (int *) dirp - smbw_fd_map;
-        fd_client = smbw_fd_map[fd_smbw];
-
-	if ((dirent_internal = smbc_readdir(fd_client)) == NULL) {
-		return NULL;
-        }
- 
-        dirent_external.d_ino = -1; /* not supported */
-        dirent_external.d_off = smbc_telldir(fd_client);
-        dirent_external.d_reclen = sizeof(struct SMBW_dirent);
-        dirent_external.d_type = dirent_internal->smbc_type;
-        smbw_strlcpy(dirent_external.d_name,
-                     dirent_internal->name,
-                     sizeof(dirent_external.d_name) - 1);
-        smbw_strlcpy(dirent_external.d_comment,
-                     dirent_internal->comment,
-                     sizeof(dirent_external.d_comment) - 1);
-
-	return &dirent_external;
-}
-
-/***************************************************** 
-read one entry from a directory in a reentrant fashion
-ha!  samba is not re-entrant, and neither is the
-libsmbclient library
-*******************************************************/
-int smbw_readdir_r(DIR *dirp,
-                   struct SMBW_dirent *__restrict entry,
-                   struct SMBW_dirent **__restrict result)
-{
-        SMBW_dirent *dirent;
-
-        dirent = smbw_readdir(dirp);
-
-        if (dirent != NULL) {
-                *entry = *dirent;
-                if (result != NULL) {
-                        *result = entry;
-                }
-                return 0;
-        }
-
-        if (result != NULL) {
-                *result = NULL;
-        }
-	return EBADF;
-}
-
-
-/***************************************************** 
-close a DIR*
-*******************************************************/
-int smbw_closedir(DIR *dirp)
-{
-        int fd_smbw = (int *) dirp - smbw_fd_map;
-        int fd_client = smbw_fd_map[fd_smbw];
-
-        (* smbw_libc.close)(fd_smbw);
-        if (smbw_ref(fd_client, SMBW_RCT_Decrement) > 0) {
-                return 0;
-        }
-        smbw_fd_map[fd_smbw] = -1;
-        return smbc_closedir(fd_client);
-}
-
-/***************************************************** 
-seek in a directory
-*******************************************************/
-void smbw_seekdir(DIR *dirp, long long offset)
-{
-        int fd_smbw = (int *) dirp - smbw_fd_map;
-        int fd_client = smbw_fd_map[fd_smbw];
-
-        smbc_lseekdir(fd_client, offset);
-}
-
-/***************************************************** 
-current loc in a directory
-*******************************************************/
-long long smbw_telldir(DIR *dirp)
-{
-        int fd_smbw = (int *) dirp - smbw_fd_map;
-        int fd_client = smbw_fd_map[fd_smbw];
-
-        return (long long) smbc_telldir(fd_client);
-}