This commit was generated by cvs2svn to compensate for changes in r30,

which included commits to RCS files with non-trunk default branches.
(This used to be commit 3a69cffb062d4f1238b8cae10481c1f2ea4d3d8b)

1 files changed, 1554 insertions, 0 deletions

diff --git a/source4/smbwrapper/smbw.c b/source4/smbwrapper/smbw.c
new file mode 100644
index 0000000000..fbc69b2371
--- /dev/null
+++ b/source4/smbwrapper/smbw.c
@@ -0,0 +1,1554 @@
+/* 
+   Unix SMB/CIFS implementation.
+   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 "includes.h"
+#include "realcalls.h"
+
+pstring smbw_cwd;
+
+static struct smbw_file *smbw_files;
+static struct smbw_server *smbw_srvs;
+
+struct bitmap *smbw_file_bmap;
+
+fstring smbw_prefix = SMBW_PREFIX;
+
+int smbw_busy=0;
+
+/* needs to be here because of dumb include files on some systems */
+int creat_bits = O_WRONLY|O_CREAT|O_TRUNC;
+
+
+/***************************************************** 
+initialise structures
+*******************************************************/
+void smbw_init(void)
+{
+	extern BOOL in_client;
+	static int initialised;
+	char *p;
+	int eno;
+	pstring line;
+
+	if (initialised) return;
+	initialised = 1;
+
+	eno = errno;
+
+	smbw_busy++;
+
+	DEBUGLEVEL = 0;
+	setup_logging("smbsh",True);
+
+	dbf = x_stderr;
+
+	if ((p=smbw_getshared("LOGFILE"))) {
+		dbf = sys_fopen(p, "a");
+	}
+
+	smbw_file_bmap = bitmap_allocate(SMBW_MAX_OPEN);
+	if (!smbw_file_bmap) {
+		exit(1);
+	}
+
+	in_client = True;
+
+	load_interfaces();
+
+	if ((p=smbw_getshared("SERVICESF"))) {
+		pstrcpy(dyn_CONFIGFILE, p);
+	}
+
+	lp_load(dyn_CONFIGFILE,True,False,False);
+
+	if (!init_names())
+		exit(1);
+
+	if ((p=smbw_getshared("DEBUG"))) {
+		DEBUGLEVEL = atoi(p);
+	}
+
+	if ((p=smbw_getshared("RESOLVE_ORDER"))) {
+		lp_set_name_resolve_order(p);
+	}
+
+	if ((p=smbw_getshared("PREFIX"))) {
+		slprintf(smbw_prefix,sizeof(fstring)-1, "/%s/", p);
+		all_string_sub(smbw_prefix,"//", "/", 0);
+		DEBUG(2,("SMBW_PREFIX is %s\n", smbw_prefix));
+	}
+
+	slprintf(line,sizeof(line)-1,"PWD_%d", (int)getpid());
+	
+	p = smbw_getshared(line);
+	if (!p) {
+		sys_getwd(smbw_cwd);
+	}
+	pstrcpy(smbw_cwd, p);
+	DEBUG(4,("Initial cwd is %s\n", smbw_cwd));
+
+	smbw_busy--;
+
+	set_maxfiles(SMBW_MAX_OPEN);
+
+	BlockSignals(True,SIGPIPE);
+
+	errno = eno;
+}
+
+/***************************************************** 
+determine if a file descriptor is a smb one
+*******************************************************/
+int smbw_fd(int fd)
+{
+	if (smbw_busy) return 0;
+	return smbw_file_bmap && bitmap_query(smbw_file_bmap, fd);
+}
+
+/***************************************************** 
+determine if a file descriptor is an internal smbw fd
+*******************************************************/
+int smbw_local_fd(int fd)
+{
+	struct smbw_server *srv;
+	
+	smbw_init();
+
+	if (smbw_busy) return 0;
+	if (smbw_shared_fd(fd)) return 1;
+
+	for (srv=smbw_srvs;srv;srv=srv->next) {
+		if (srv->cli.fd == fd) return 1;
+	}
+
+	return 0;
+}
+
+/***************************************************** 
+a crude inode number generator
+*******************************************************/
+ino_t smbw_inode(const char *name)
+{
+	if (!*name) return 2;
+	return (ino_t)str_checksum(name);
+}
+
+/***************************************************** 
+remove redundent stuff from a filename
+*******************************************************/
+void clean_fname(char *name)
+{
+	char *p, *p2;
+	int l;
+	int modified = 1;
+
+	if (!name) return;
+
+	while (modified) {
+		modified = 0;
+
+		DEBUG(5,("cleaning %s\n", name));
+
+		if ((p=strstr(name,"/./"))) {
+			modified = 1;
+			while (*p) {
+				p[0] = p[2];
+				p++;
+			}
+		}
+
+		if ((p=strstr(name,"//"))) {
+			modified = 1;
+			while (*p) {
+				p[0] = p[1];
+				p++;
+			}
+		}
+
+		if (strcmp(name,"/../")==0) {
+			modified = 1;
+			name[1] = 0;
+		}
+
+		if ((p=strstr(name,"/../"))) {
+			modified = 1;
+			for (p2=(p>name?p-1:p);p2>name;p2--) {
+				if (p2[0] == '/') break;
+			}
+			while (*p2) {
+				p2[0] = p2[3];
+				p2++;
+			}
+		}
+
+		if (strcmp(name,"/..")==0) {
+			modified = 1;
+			name[1] = 0;
+		}
+
+		l = strlen(name);
+		p = l>=3?(name+l-3):name;
+		if (strcmp(p,"/..")==0) {
+			modified = 1;
+			for (p2=p-1;p2>name;p2--) {
+				if (p2[0] == '/') break;
+			}
+			if (p2==name) {
+				p[0] = '/';
+				p[1] = 0;
+			} else {
+				p2[0] = 0;
+			}
+		}
+
+		l = strlen(name);
+		p = l>=2?(name+l-2):name;
+		if (strcmp(p,"/.")==0) {
+			if (p == name) {
+				p[1] = 0;
+			} else {
+				p[0] = 0;
+			}
+		}
+
+		if (strncmp(p=name,"./",2) == 0) {      
+			modified = 1;
+			do {
+				p[0] = p[2];
+			} while (*p++);
+		}
+
+		l = strlen(p=name);
+		if (l > 1 && p[l-1] == '/') {
+			modified = 1;
+			p[l-1] = 0;
+		}
+	}
+}
+
+
+
+/***************************************************** 
+find a workgroup (any workgroup!) that has a master 
+browser on the local network
+*******************************************************/
+static char *smbw_find_workgroup(void)
+{
+	fstring server;
+	char *p;
+	struct in_addr *ip_list = NULL;
+	int count = 0;
+	int i;
+
+	/* first off see if an existing workgroup name exists */
+	p = smbw_getshared("WORKGROUP");
+	if (!p) p = lp_workgroup();
+	
+	slprintf(server, sizeof(server), "%s#1D", p);
+	if (smbw_server(server, "IPC$")) return p;
+
+	/* go looking for workgroups */
+	if (!name_resolve_bcast(MSBROWSE, 1, &ip_list, &count)) {
+		DEBUG(1,("No workgroups found!"));
+		return p;
+	}
+
+	for (i=0;i<count;i++) {
+		static fstring name;
+		if (name_status_find("*", 0, 0x1d, ip_list[i], name)) {
+			slprintf(server, sizeof(server), "%s#1D", name);
+			if (smbw_server(server, "IPC$")) {
+				smbw_setshared("WORKGROUP", name);
+				SAFE_FREE(ip_list);
+				return name;
+			}
+		}
+	}
+
+	SAFE_FREE(ip_list);
+
+	return p;
+}
+
+/***************************************************** 
+parse a smb path into its components. 
+server is one of
+  1) the name of the SMB server
+  2) WORKGROUP#1D for share listing
+  3) WORKGROUP#__ for workgroup listing
+share is the share on the server to query
+path is the SMB path on the server
+return the full path (ie. add cwd if needed)
+*******************************************************/
+char *smbw_parse_path(const char *fname, char *server, char *share, char *path)
+{
+	static pstring s;
+	char *p;
+	int len;
+	fstring workgroup;
+
+	/* add cwd if necessary */
+	if (fname[0] != '/') {
+		slprintf(s, sizeof(s), "%s/%s", smbw_cwd, fname);
+	} else {
+		pstrcpy(s, fname);
+	}
+	clean_fname(s);
+
+	/* see if it has the right prefix */
+	len = strlen(smbw_prefix)-1;
+	if (strncmp(s,smbw_prefix,len) || 
+	    (s[len] != '/' && s[len] != 0)) return s;
+
+	/* ok, its for us. Now parse out the workgroup, share etc. */
+	p = s+len;
+	if (*p == '/') p++;
+	if (!next_token(&p, workgroup, "/", sizeof(fstring))) {
+		/* we're in /smb - give a list of workgroups */
+		slprintf(server,sizeof(fstring), "%s#01", smbw_find_workgroup());
+		fstrcpy(share,"IPC$");
+		pstrcpy(path,"");
+		return s;
+	}
+
+	if (!next_token(&p, server, "/", sizeof(fstring))) {
+		/* we are in /smb/WORKGROUP */
+		slprintf(server,sizeof(fstring), "%s#1D", workgroup);
+		fstrcpy(share,"IPC$");
+		pstrcpy(path,"");
+	}
+
+	if (!next_token(&p, share, "/", sizeof(fstring))) {
+		/* we are in /smb/WORKGROUP/SERVER */
+		fstrcpy(share,"IPC$");
+		pstrcpy(path,"");
+	}
+
+	pstrcpy(path, p);
+
+	all_string_sub(path, "/", "\\", 0);
+
+	return s;
+}
+
+/***************************************************** 
+determine if a path name (possibly relative) is in the 
+smb name space
+*******************************************************/
+int smbw_path(const char *path)
+{
+	fstring server, share;
+	pstring s;
+	char *cwd;
+	int len;
+
+	if(!path)
+		return 0;
+
+	/* this is needed to prevent recursion with the BSD malloc which
+	   opens /etc/malloc.conf on the first call */
+	if (strncmp(path,"/etc/", 5) == 0) {
+		return 0;
+	}
+
+	smbw_init();
+
+	len = strlen(smbw_prefix)-1;
+
+	if (path[0] == '/' && strncmp(path,smbw_prefix,len)) {
+		return 0;
+	}
+
+	if (smbw_busy) return 0;
+
+	DEBUG(3,("smbw_path(%s)\n", path));
+
+	cwd = smbw_parse_path(path, server, share, s);
+
+	if (strncmp(cwd,smbw_prefix,len) == 0 &&
+	    (cwd[len] == '/' || cwd[len] == 0)) {
+		return 1;
+	}
+
+	return 0;
+}
+
+/***************************************************** 
+return a unix errno from a SMB error pair
+*******************************************************/
+int smbw_errno(struct cli_state *c)
+{
+	return cli_errno(c);
+}
+
+/* Return a username and password given a server and share name */
+
+void get_envvar_auth_data(char *server, char *share, char **workgroup,
+			  char **username, char **password)
+{
+	/* Fall back to shared memory/environment variables */
+
+	*username = smbw_getshared("USER");
+	if (!*username) *username = getenv("USER");
+	if (!*username) *username = "guest";
+
+	*workgroup = smbw_getshared("WORKGROUP");
+	if (!*workgroup) *workgroup = lp_workgroup();
+
+	*password = smbw_getshared("PASSWORD");
+	if (!*password) *password = "";
+}
+
+static smbw_get_auth_data_fn get_auth_data_fn = get_envvar_auth_data;
+
+/*****************************************************
+set the get auth data function
+******************************************************/
+void smbw_set_auth_data_fn(smbw_get_auth_data_fn fn)
+{
+	get_auth_data_fn = fn;
+}
+
+/***************************************************** 
+return a connection to a server (existing or new)
+*******************************************************/
+struct smbw_server *smbw_server(char *server, char *share)
+{
+	struct smbw_server *srv=NULL;
+	struct cli_state c;
+	char *username;
+	char *password;
+	char *workgroup;
+	struct nmb_name called, calling;
+	char *p, *server_n = server;
+	fstring group;
+	pstring ipenv;
+	struct in_addr ip;
+
+        zero_ip(&ip);
+	ZERO_STRUCT(c);
+
+	get_auth_data_fn(server, share, &workgroup, &username, &password);
+
+	/* try to use an existing connection */
+	for (srv=smbw_srvs;srv;srv=srv->next) {
+		if (strcmp(server,srv->server_name)==0 &&
+		    strcmp(share,srv->share_name)==0 &&
+		    strcmp(workgroup,srv->workgroup)==0 &&
+		    strcmp(username, srv->username) == 0) 
+			return srv;
+	}
+
+	if (server[0] == 0) {
+		errno = EPERM;
+		return NULL;
+	}
+
+	make_nmb_name(&calling, lp_netbios_name(), 0x0);
+	make_nmb_name(&called , server, 0x20);
+
+	DEBUG(4,("server_n=[%s] server=[%s]\n", server_n, server));
+
+	if ((p=strchr_m(server_n,'#')) && 
+	    (strcmp(p+1,"1D")==0 || strcmp(p+1,"01")==0)) {
+		struct in_addr sip;
+		pstring s;
+
+		fstrcpy(group, server_n);
+		p = strchr_m(group,'#');
+		*p = 0;
+		
+		/* cache the workgroup master lookup */
+		slprintf(s,sizeof(s)-1,"MASTER_%s", group);
+		if (!(server_n = smbw_getshared(s))) {
+			if (!find_master_ip(group, &sip)) {
+				errno = ENOENT;
+				return NULL;
+			}
+			fstrcpy(group, inet_ntoa(sip));
+			server_n = group;
+			smbw_setshared(s,server_n);
+		}
+	}
+
+	DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
+
+ again:
+	slprintf(ipenv,sizeof(ipenv)-1,"HOST_%s", server_n);
+
+        zero_ip(&ip);
+	if ((p=smbw_getshared(ipenv))) {
+		ip = *(interpret_addr2(p));
+	}
+
+	/* have to open a new connection */
+	if (!cli_initialise(&c) || !cli_connect(&c, server_n, &ip)) {
+		errno = ENOENT;
+		return NULL;
+	}
+
+	if (!cli_session_request(&c, &calling, &called)) {
+		cli_shutdown(&c);
+		if (strcmp(called.name, "*SMBSERVER")) {
+			make_nmb_name(&called , "*SMBSERVER", 0x20);
+			goto again;
+		}
+		errno = ENOENT;
+		return NULL;
+	}
+
+	DEBUG(4,(" session request ok\n"));
+
+	if (!cli_negprot(&c)) {
+		cli_shutdown(&c);
+		errno = ENOENT;
+		return NULL;
+	}
+
+	if (!cli_session_setup(&c, username, 
+			       password, strlen(password),
+			       password, strlen(password),
+			       workgroup) &&
+	    /* try an anonymous login if it failed */
+	    !cli_session_setup(&c, "", "", 1,"", 0, workgroup)) {
+		cli_shutdown(&c);
+		errno = EPERM;
+		return NULL;
+	}
+
+	DEBUG(4,(" session setup ok\n"));
+
+	if (!cli_send_tconX(&c, share, "?????",
+			    password, strlen(password)+1)) {
+		errno = smbw_errno(&c);
+		cli_shutdown(&c);
+		return NULL;
+	}
+
+	smbw_setshared(ipenv,inet_ntoa(ip));
+	
+	DEBUG(4,(" tconx ok\n"));
+
+	srv = (struct smbw_server *)malloc(sizeof(*srv));
+	if (!srv) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(srv);
+
+	srv->cli = c;
+
+	srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
+
+	srv->server_name = strdup(server);
+	if (!srv->server_name) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	srv->share_name = strdup(share);
+	if (!srv->share_name) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	srv->workgroup = strdup(workgroup);
+	if (!srv->workgroup) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	srv->username = strdup(username);
+	if (!srv->username) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	/* some programs play with file descriptors fairly intimately. We
+	   try to get out of the way by duping to a high fd number */
+	if (fcntl(SMBW_CLI_FD + srv->cli.fd, F_GETFD) && errno == EBADF) {
+		if (dup2(srv->cli.fd,SMBW_CLI_FD+srv->cli.fd) == 
+		    srv->cli.fd+SMBW_CLI_FD) {
+			close(srv->cli.fd);
+			srv->cli.fd += SMBW_CLI_FD;
+		}
+	}
+
+	DLIST_ADD(smbw_srvs, srv);
+
+	return srv;
+
+ failed:
+	cli_shutdown(&c);
+	if (!srv) return NULL;
+
+	SAFE_FREE(srv->server_name);
+	SAFE_FREE(srv->share_name);
+	SAFE_FREE(srv);
+	return NULL;
+}
+
+
+/***************************************************** 
+map a fd to a smbw_file structure
+*******************************************************/
+struct smbw_file *smbw_file(int fd)
+{
+	struct smbw_file *file;
+
+	for (file=smbw_files;file;file=file->next) {
+		if (file->fd == fd) return file;
+	}
+	return NULL;
+}
+
+/***************************************************** 
+a wrapper for open()
+*******************************************************/
+int smbw_open(const char *fname, int flags, mode_t mode)
+{
+	fstring server, share;
+	pstring path;
+	struct smbw_server *srv=NULL;
+	int eno=0, fd = -1;
+	struct smbw_file *file=NULL;
+
+	smbw_init();
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_busy++;	
+
+	/* work out what server they are after */
+	smbw_parse_path(fname, server, share, path);
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (path[strlen(path)-1] == '\\') {
+		fd = -1;
+	} else {
+		fd = cli_open(&srv->cli, path, flags, DENY_NONE);
+	}
+	if (fd == -1) {
+		/* it might be a directory. Maybe we should use chkpath? */
+		eno = smbw_errno(&srv->cli);
+		fd = smbw_dir_open(fname);
+		if (fd == -1) errno = eno;
+		smbw_busy--;
+		return fd;
+	}
+
+	file = (struct smbw_file *)malloc(sizeof(*file));
+	if (!file) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(file);
+
+	file->f = (struct smbw_filedes *)malloc(sizeof(*(file->f)));
+	if (!file->f) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(file->f);
+
+	file->f->cli_fd = fd;
+	file->f->fname = strdup(path);
+	if (!file->f->fname) {
+		errno = ENOMEM;
+		goto failed;
+	}
+	file->srv = srv;
+	file->fd = open(SMBW_DUMMY, O_WRONLY);
+	if (file->fd == -1) {
+		errno = EMFILE;
+		goto failed;
+	}
+
+	if (bitmap_query(smbw_file_bmap, file->fd)) {
+		DEBUG(0,("ERROR: fd used in smbw_open\n"));
+		errno = EIO;
+		goto failed;
+	}
+
+	file->f->ref_count=1;
+
+	bitmap_set(smbw_file_bmap, file->fd);
+
+	DLIST_ADD(smbw_files, file);
+
+	DEBUG(4,("opened %s\n", fname));
+
+	smbw_busy--;
+	return file->fd;
+
+ failed:
+	if (fd != -1) {
+		cli_close(&srv->cli, fd);
+	}
+	if (file) {
+		if (file->f) {
+			SAFE_FREE(file->f->fname);
+			SAFE_FREE(file->f);
+		}
+		SAFE_FREE(file);
+	}
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for pread()
+*******************************************************/
+ssize_t smbw_pread(int fd, void *buf, size_t count, off_t ofs)
+{
+	struct smbw_file *file;
+	int ret;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}
+	
+	ret = cli_read(&file->srv->cli, file->f->cli_fd, buf, ofs, count);
+
+	if (ret == -1) {
+		errno = smbw_errno(&file->srv->cli);
+		smbw_busy--;
+		return -1;
+	}
+
+	smbw_busy--;
+	return ret;
+}
+
+/***************************************************** 
+a wrapper for read()
+*******************************************************/
+ssize_t smbw_read(int fd, void *buf, size_t count)
+{
+	struct smbw_file *file;
+	int ret;
+
+	DEBUG(4,("smbw_read(%d, %d)\n", fd, (int)count));
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}
+	
+	ret = cli_read(&file->srv->cli, file->f->cli_fd, buf, 
+		       file->f->offset, count);
+
+	if (ret == -1) {
+		errno = smbw_errno(&file->srv->cli);
+		smbw_busy--;
+		return -1;
+	}
+
+	file->f->offset += ret;
+	
+	DEBUG(4,(" -> %d\n", ret));
+
+	smbw_busy--;
+	return ret;
+}
+
+	
+
+/***************************************************** 
+a wrapper for write()
+*******************************************************/
+ssize_t smbw_write(int fd, void *buf, size_t count)
+{
+	struct smbw_file *file;
+	int ret;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}
+	
+	ret = cli_write(&file->srv->cli, file->f->cli_fd, 0, buf, file->f->offset, count);
+
+	if (ret == -1) {
+		errno = smbw_errno(&file->srv->cli);
+		smbw_busy--;
+		return -1;
+	}
+
+	file->f->offset += ret;
+
+	smbw_busy--;
+	return ret;
+}
+
+/***************************************************** 
+a wrapper for pwrite()
+*******************************************************/
+ssize_t smbw_pwrite(int fd, void *buf, size_t count, off_t ofs)
+{
+	struct smbw_file *file;
+	int ret;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}
+	
+	ret = cli_write(&file->srv->cli, file->f->cli_fd, 0, buf, ofs, count);
+
+	if (ret == -1) {
+		errno = smbw_errno(&file->srv->cli);
+		smbw_busy--;
+		return -1;
+	}
+
+	smbw_busy--;
+	return ret;
+}
+
+/***************************************************** 
+a wrapper for close()
+*******************************************************/
+int smbw_close(int fd)
+{
+	struct smbw_file *file;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		int ret = smbw_dir_close(fd);
+		smbw_busy--;
+		return ret;
+	}
+	
+	if (file->f->ref_count == 1 &&
+	    !cli_close(&file->srv->cli, file->f->cli_fd)) {
+		errno = smbw_errno(&file->srv->cli);
+		smbw_busy--;
+		return -1;
+	}
+
+
+	bitmap_clear(smbw_file_bmap, file->fd);
+	close(file->fd);
+	
+	DLIST_REMOVE(smbw_files, file);
+
+	file->f->ref_count--;
+	if (file->f->ref_count == 0) {
+		SAFE_FREE(file->f->fname);
+		SAFE_FREE(file->f);
+	}
+	ZERO_STRUCTP(file);
+	SAFE_FREE(file);
+	
+	smbw_busy--;
+
+	return 0;
+}
+
+
+/***************************************************** 
+a wrapper for fcntl()
+*******************************************************/
+int smbw_fcntl(int fd, int cmd, long arg)
+{
+	return 0;
+}
+
+
+/***************************************************** 
+a wrapper for access()
+*******************************************************/
+int smbw_access(const char *name, int mode)
+{
+	struct stat st;
+
+	DEBUG(4,("smbw_access(%s, 0x%x)\n", name, mode));
+
+	if (smbw_stat(name, &st)) return -1;
+
+	if (((mode & R_OK) && !(st.st_mode & S_IRUSR)) ||
+	    ((mode & W_OK) && !(st.st_mode & S_IWUSR)) ||
+	    ((mode & X_OK) && !(st.st_mode & S_IXUSR))) {
+		errno = EACCES;
+		return -1;
+	}
+	
+	return 0;
+}
+
+/***************************************************** 
+a wrapper for realink() - needed for correct errno setting
+*******************************************************/
+int smbw_readlink(const char *path, char *buf, size_t bufsize)
+{
+	struct stat st;
+	int ret;
+
+	ret = smbw_stat(path, &st);
+	if (ret != 0) {
+		DEBUG(4,("readlink(%s) failed\n", path));
+		return -1;
+	}
+	
+	/* it exists - say it isn't a link */
+	DEBUG(4,("readlink(%s) not a link\n", path));
+
+	errno = EINVAL;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for unlink()
+*******************************************************/
+int smbw_unlink(const char *fname)
+{
+	struct smbw_server *srv;
+	fstring server, share;
+	pstring path;
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	smbw_busy++;
+
+	/* work out what server they are after */
+	smbw_parse_path(fname, server, share, path);
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (strncmp(srv->cli.dev, "LPT", 3) == 0) {
+		int job = smbw_stat_printjob(srv, path, NULL, NULL);
+		if (job == -1) {
+			goto failed;
+		}
+		if (cli_printjob_del(&srv->cli, job) != 0) {
+			goto failed;
+		}
+	} else if (!cli_unlink(&srv->cli, path)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for rename()
+*******************************************************/
+int smbw_rename(const char *oldname, const char *newname)
+{
+	struct smbw_server *srv;
+	fstring server1, share1;
+	pstring path1;
+	fstring server2, share2;
+	pstring path2;
+
+	if (!oldname || !newname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	DEBUG(4,("smbw_rename(%s,%s)\n", oldname, newname));
+
+	smbw_busy++;
+
+	/* work out what server they are after */
+	smbw_parse_path(oldname, server1, share1, path1);
+	smbw_parse_path(newname, server2, share2, path2);
+
+	if (strcmp(server1, server2) || strcmp(share1, share2)) {
+		/* can't cross filesystems */
+		errno = EXDEV;
+		return -1;
+	}
+
+	/* get a connection to the server */
+	srv = smbw_server(server1, share1);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (!cli_rename(&srv->cli, path1, path2)) {
+		int eno = smbw_errno(&srv->cli);
+		if (eno != EEXIST ||
+		    !cli_unlink(&srv->cli, path2) ||
+		    !cli_rename(&srv->cli, path1, path2)) {
+			errno = eno;
+			goto failed;
+		}
+	}
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for utime and utimes
+*******************************************************/
+static int smbw_settime(const char *fname, time_t t)
+{
+	struct smbw_server *srv;
+	fstring server, share;
+	pstring path;
+	uint16 mode;
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	smbw_busy++;
+
+	/* work out what server they are after */
+	smbw_parse_path(fname, server, share, path);
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (!cli_getatr(&srv->cli, path, &mode, NULL, NULL)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+
+	if (!cli_setatr(&srv->cli, path, mode, t)) {
+		/* some servers always refuse directory changes */
+		if (!(mode & aDIR)) {
+			errno = smbw_errno(&srv->cli);
+			goto failed;
+		}
+	}
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+/***************************************************** 
+a wrapper for utime 
+*******************************************************/
+int smbw_utime(const char *fname, void *buf)
+{
+	struct utimbuf *tbuf = (struct utimbuf *)buf;
+	return smbw_settime(fname, tbuf?tbuf->modtime:time(NULL));
+}
+
+/***************************************************** 
+a wrapper for utime 
+*******************************************************/
+int smbw_utimes(const char *fname, void *buf)
+{
+	struct timeval *tbuf = (struct timeval *)buf;
+	return smbw_settime(fname, tbuf?tbuf->tv_sec:time(NULL));
+}
+
+
+/***************************************************** 
+a wrapper for chown()
+*******************************************************/
+int smbw_chown(const char *fname, uid_t owner, gid_t group)
+{
+	struct smbw_server *srv;
+	fstring server, share;
+	pstring path;
+	uint16 mode;
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	smbw_busy++;
+
+	/* work out what server they are after */
+	smbw_parse_path(fname, server, share, path);
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (!cli_getatr(&srv->cli, path, &mode, NULL, NULL)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+	
+	/* assume success */
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+/***************************************************** 
+a wrapper for chmod()
+*******************************************************/
+int smbw_chmod(const char *fname, mode_t newmode)
+{
+	struct smbw_server *srv;
+	fstring server, share;
+	pstring path;
+	uint32 mode;
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	smbw_busy++;
+
+	/* work out what server they are after */
+	smbw_parse_path(fname, server, share, path);
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	mode = 0;
+
+	if (!(newmode & (S_IWUSR | S_IWGRP | S_IWOTH))) mode |= aRONLY;
+	if ((newmode & S_IXUSR) && lp_map_archive(-1)) mode |= aARCH;
+	if ((newmode & S_IXGRP) && lp_map_system(-1)) mode |= aSYSTEM;
+	if ((newmode & S_IXOTH) && lp_map_hidden(-1)) mode |= aHIDDEN;
+
+	if (!cli_setatr(&srv->cli, path, mode, 0)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+	
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+/***************************************************** 
+a wrapper for lseek()
+*******************************************************/
+off_t smbw_lseek(int fd, off_t offset, int whence)
+{
+	struct smbw_file *file;
+	size_t size;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		off_t ret = smbw_dir_lseek(fd, offset, whence);
+		smbw_busy--;
+		return ret;
+	}
+
+	switch (whence) {
+	case SEEK_SET:
+		file->f->offset = offset;
+		break;
+	case SEEK_CUR:
+		file->f->offset += offset;
+		break;
+	case SEEK_END:
+		if (!cli_qfileinfo(&file->srv->cli, file->f->cli_fd, 
+				   NULL, &size, NULL, NULL, NULL, 
+				   NULL, NULL) &&
+		    !cli_getattrE(&file->srv->cli, file->f->cli_fd, 
+				  NULL, &size, NULL, NULL, NULL)) {
+			errno = EINVAL;
+			smbw_busy--;
+			return -1;
+		}
+		file->f->offset = size + offset;
+		break;
+	}
+
+	smbw_busy--;
+	return file->f->offset;
+}
+
+
+/***************************************************** 
+a wrapper for dup()
+*******************************************************/
+int smbw_dup(int fd)
+{
+	int fd2;
+	struct smbw_file *file, *file2;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		goto failed;
+	}
+
+	fd2 = dup(file->fd);
+	if (fd2 == -1) {
+		goto failed;
+	}
+
+	if (bitmap_query(smbw_file_bmap, fd2)) {
+		DEBUG(0,("ERROR: fd already open in dup!\n"));
+		errno = EIO;
+		goto failed;
+	}
+
+	file2 = (struct smbw_file *)malloc(sizeof(*file2));
+	if (!file2) {
+		close(fd2);
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(file2);
+
+	*file2 = *file;
+	file2->fd = fd2;
+
+	file->f->ref_count++;
+
+	bitmap_set(smbw_file_bmap, fd2);
+	
+	DLIST_ADD(smbw_files, file2);
+	
+	smbw_busy--;
+	return fd2;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for dup2()
+*******************************************************/
+int smbw_dup2(int fd, int fd2)
+{
+	struct smbw_file *file, *file2;
+
+	smbw_busy++;
+
+	file = smbw_file(fd);
+	if (!file) {
+		errno = EBADF;
+		goto failed;
+	}
+
+	if (bitmap_query(smbw_file_bmap, fd2)) {
+		DEBUG(0,("ERROR: fd already open in dup2!\n"));
+		errno = EIO;
+		goto failed;
+	}
+
+	if (dup2(file->fd, fd2) != fd2) {
+		goto failed;
+	}
+
+	file2 = (struct smbw_file *)malloc(sizeof(*file2));
+	if (!file2) {
+		close(fd2);
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(file2);
+
+	*file2 = *file;
+	file2->fd = fd2;
+
+	file->f->ref_count++;
+
+	bitmap_set(smbw_file_bmap, fd2);
+	
+	DLIST_ADD(smbw_files, file2);
+	
+	smbw_busy--;
+	return fd2;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+close a connection to a server
+*******************************************************/
+static void smbw_srv_close(struct smbw_server *srv)
+{
+	smbw_busy++;
+
+	cli_shutdown(&srv->cli);
+
+	SAFE_FREE(srv->server_name);
+	SAFE_FREE(srv->share_name);
+
+	DLIST_REMOVE(smbw_srvs, srv);
+
+	ZERO_STRUCTP(srv);
+
+	SAFE_FREE(srv);
+	
+	smbw_busy--;
+}
+
+/***************************************************** 
+when we fork we have to close all connections and files
+in the child
+*******************************************************/
+int smbw_fork(void)
+{
+	pid_t child;
+	int p[2];
+	char c=0;
+	pstring line;
+
+	struct smbw_file *file, *next_file;
+	struct smbw_server *srv, *next_srv;
+
+	if (pipe(p)) return real_fork();
+
+	child = real_fork();
+
+	if (child) {
+		/* block the parent for a moment until the sockets are
+                   closed */
+		close(p[1]);
+		read(p[0], &c, 1);
+		close(p[0]);
+		return child;
+	}
+
+	close(p[0]);
+
+	/* close all files */
+	for (file=smbw_files;file;file=next_file) {
+		next_file = file->next;
+		close(file->fd);
+	}
+
+	/* close all server connections */
+	for (srv=smbw_srvs;srv;srv=next_srv) {
+		next_srv = srv->next;
+		smbw_srv_close(srv);
+	}
+
+	slprintf(line,sizeof(line)-1,"PWD_%d", (int)getpid());
+	smbw_setshared(line,smbw_cwd);
+
+	/* unblock the parent */
+	write(p[1], &c, 1);
+	close(p[1]);
+
+	/* and continue in the child */
+	return 0;
+}
+
+#ifndef NO_ACL_WRAPPER
+/***************************************************** 
+say no to acls
+*******************************************************/
+ int smbw_acl(const char *pathp, int cmd, int nentries, aclent_t *aclbufp)
+{
+	if (cmd == GETACL || cmd == GETACLCNT) return 0;
+	errno = ENOSYS;
+	return -1;
+}
+#endif
+
+#ifndef NO_FACL_WRAPPER
+/***************************************************** 
+say no to acls
+*******************************************************/
+ int smbw_facl(int fd, int cmd, int nentries, aclent_t *aclbufp)
+{
+	if (cmd == GETACL || cmd == GETACLCNT) return 0;
+	errno = ENOSYS;
+	return -1;
+}
+#endif
+
+#ifdef HAVE_EXPLICIT_LARGEFILE_SUPPORT
+#ifdef HAVE_STAT64
+/* this can't be in wrapped.c because of include conflicts */
+ void stat64_convert(struct stat *st, struct stat64 *st64)
+{
+	st64->st_size = st->st_size;
+	st64->st_mode = st->st_mode;
+	st64->st_ino = st->st_ino;
+	st64->st_dev = st->st_dev;
+	st64->st_rdev = st->st_rdev;
+	st64->st_nlink = st->st_nlink;
+	st64->st_uid = st->st_uid;
+	st64->st_gid = st->st_gid;
+	st64->st_atime = st->st_atime;
+	st64->st_mtime = st->st_mtime;
+	st64->st_ctime = st->st_ctime;
+	st64->st_blksize = st->st_blksize;
+	st64->st_blocks = st->st_blocks;
+}
+#endif
+
+#ifdef HAVE_READDIR64
+ void dirent64_convert(struct dirent *d, struct dirent64 *d64)
+{
+	d64->d_ino = d->d_ino;
+	d64->d_off = d->d_off;
+	d64->d_reclen = d->d_reclen;
+	pstrcpy(d64->d_name, d->d_name);
+}
+#endif
+#endif
+
+
+#ifdef HAVE___XSTAT
+/* Definition of `struct stat' used in the linux kernel..  */
+struct kernel_stat {
+	unsigned short int st_dev;
+	unsigned short int __pad1;
+	unsigned long int st_ino;
+	unsigned short int st_mode;
+	unsigned short int st_nlink;
+	unsigned short int st_uid;
+	unsigned short int st_gid;
+	unsigned short int st_rdev;
+	unsigned short int __pad2;
+	unsigned long int st_size;
+	unsigned long int st_blksize;
+	unsigned long int st_blocks;
+	unsigned long int st_atime;
+	unsigned long int __unused1;
+	unsigned long int st_mtime;
+	unsigned long int __unused2;
+	unsigned long int st_ctime;
+	unsigned long int __unused3;
+	unsigned long int __unused4;
+	unsigned long int __unused5;
+};
+
+/*
+ * Prototype for gcc in 'fussy' mode.
+ */
+ void xstat_convert(int vers, struct stat *st, struct kernel_stat *kbuf);
+ void xstat_convert(int vers, struct stat *st, struct kernel_stat *kbuf)
+{
+#ifdef _STAT_VER_LINUX_OLD
+	if (vers == _STAT_VER_LINUX_OLD) {
+		memcpy(st, kbuf, sizeof(*st));
+		return;
+	}
+#endif
+
+	ZERO_STRUCTP(st);
+
+	st->st_dev = kbuf->st_dev;
+	st->st_ino = kbuf->st_ino;
+	st->st_mode = kbuf->st_mode;
+	st->st_nlink = kbuf->st_nlink;
+	st->st_uid = kbuf->st_uid;
+	st->st_gid = kbuf->st_gid;
+	st->st_rdev = kbuf->st_rdev;
+	st->st_size = kbuf->st_size;
+	st->st_blksize = kbuf->st_blksize;
+	st->st_blocks = kbuf->st_blocks;
+	st->st_atime = kbuf->st_atime;
+	st->st_mtime = kbuf->st_mtime;
+	st->st_ctime = kbuf->st_ctime;
+}
+#endif