added fchdir() support

(This used to be commit a42729dbf5414f54e5d623514533958c62ada5f6)

4 files changed, 66 insertions, 4 deletions

diff --git a/source3/smbwrapper/README b/source3/smbwrapper/README
index 14e7af700e..b2236eb8c9 100644
--- a/source3/smbwrapper/README
+++ b/source3/smbwrapper/README
@@ -22,7 +22,7 @@ This is code under development. Lots of things don't work yet.
 Things that I have tried and do seem to work include:
 
   emacs, tar, ls, cmp, cp, rsync, du, cat, rm, mv, less, more, wc, head,
-  tail, bash, tcsh, mkdir, rmdir, vim, xedit
+  tail, bash, tcsh, mkdir, rmdir, vim, xedit, diff
 
 things that I know don't work:
  
diff --git a/source3/smbwrapper/fchdir.c b/source3/smbwrapper/fchdir.c
new file mode 100644
index 0000000000..320d8fa6a4
--- /dev/null
+++ b/source3/smbwrapper/fchdir.c
@@ -0,0 +1,35 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 2.0
+   SMB wrapper functions
+   Copyright (C) Andrew Tridgell 1998
+   
+   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 "wrapper.h"
+
+#ifdef linux
+__asm__(".globl __fchdir; __fchdir = fchdir");
+#endif
+
+ int fchdir(int fd)
+{
+	if (smbw_fd(fd)) {
+		return smbw_fchdir(fd);
+	}
+
+	return real_fchdir(fd);
+}
diff --git a/source3/smbwrapper/realcalls.h b/source3/smbwrapper/realcalls.h
index f9718a1ef1..53f110fe4a 100644
--- a/source3/smbwrapper/realcalls.h
+++ b/source3/smbwrapper/realcalls.h
@@ -35,6 +35,7 @@ struct dirent *__libc_readdir(DIR * dir);
 #define real_lseek(fd, offset, whence)	(syscall(SYS_lseek, (fd), (offset), (whence)))
 #define real_write(fd, buf, count )	(syscall(SYS_write, (fd), (buf), (count)))
 #define real_close(fd)	                (syscall(SYS_close, (fd)))
+#define real_fchdir(fd)	                (syscall(SYS_fchdir, (fd)))
 #define real_fcntl(fd,cmd,arg)	        (syscall(SYS_fcntl, (fd), (cmd), (arg)))
 #define real_symlink(fn1, fn2)		(syscall(SYS_symlink, (fn1), (fn2)))
 #define real_unlink(fn)			(syscall(SYS_unlink, (fn)))
@@ -42,7 +43,6 @@ struct dirent *__libc_readdir(DIR * dir);
 #define real_mkdir(fn, mode)		(syscall(SYS_mkdir, (fn), (mode)))
 #define real_utime(fn, buf)		(syscall(SYS_utime, (fn), (buf)))
 #define real_utimes(fn, buf)		(syscall(SYS_utimes, (fn), (buf)))
-#define real_readlink(fn, buf, bufs)	(syscall(SYS_readlink, (fn), (buf), (bufs)))
 
 #endif
 
diff --git a/source3/smbwrapper/smbw.c b/source3/smbwrapper/smbw.c
index 799a7f02cc..11d680befa 100644
--- a/source3/smbwrapper/smbw.c
+++ b/source3/smbwrapper/smbw.c
@@ -47,6 +47,7 @@ struct smbw_dir {
 	int offset, count, malloced;
 	struct smbw_server *srv;
 	struct file_info *list;
+	char *path;
 };
 
 static struct smbw_file *smbw_files;
@@ -546,6 +547,7 @@ static void free_dir(struct smbw_dir *dir)
 	if (dir->list) {
 		free(dir->list);
 	}
+	if (dir->path) free(dir->path);
 	ZERO_STRUCTP(dir);
 	free(dir);
 }
@@ -602,6 +604,7 @@ int smbw_dir_open(const char *fname, int flags)
 	struct smbw_dir *dir=NULL;
 	pstring mask;
 	int fd;
+	char *s;
 
 	DEBUG(4,("%s\n", __FUNCTION__));
 
@@ -613,7 +616,7 @@ int smbw_dir_open(const char *fname, int flags)
 	smbw_init();
 
 	/* work out what server they are after */
-	smbw_parse_path(fname, server, share, path);
+	s = smbw_parse_path(fname, server, share, path);
 
 	DEBUG(4,("dir_open share=%s\n", share));
 
@@ -665,6 +668,7 @@ int smbw_dir_open(const char *fname, int flags)
 
 	dir->fd = fd + SMBW_FD_OFFSET;
 	dir->srv = srv;
+	dir->path = strdup(s);
 
 	DEBUG(4,("  -> %d\n", dir->count));
 
@@ -987,7 +991,7 @@ int smbw_dir_close(int fd)
 	bitmap_clear(file_bmap, dir->fd - SMBW_FD_OFFSET);
 	
 	DLIST_REMOVE(smbw_dirs, dir);
-	
+
 	free_dir(dir);
 
 	return 0;
@@ -1634,3 +1638,26 @@ char *smbw_getcwd(char *buf, size_t size)
 	smbw_busy--;
 	return buf;
 }
+
+/***************************************************** 
+a wrapper for fchdir()
+*******************************************************/
+int smbw_fchdir(unsigned int fd)
+{
+	struct smbw_dir *dir;
+
+	DEBUG(4,("%s\n", __FUNCTION__));
+
+	smbw_busy++;
+
+	dir = smbw_dir(fd);
+	if (!dir) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}	
+
+	smbw_busy--;
+	
+	return chdir(dir->path);
+}