first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 688 insertions, 0 deletions

diff --git a/source4/smbwrapper/smbw_dir.c b/source4/smbwrapper/smbw_dir.c
new file mode 100644
index 0000000000..31d81a1e7e
--- /dev/null
+++ b/source4/smbwrapper/smbw_dir.c
@@ -0,0 +1,688 @@
+/* 
+   Unix SMB/CIFS implementation.
+   SMB wrapper directory 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"
+
+extern pstring smbw_cwd;
+extern fstring smbw_prefix;
+
+static struct smbw_dir *smbw_dirs;
+
+extern struct bitmap *smbw_file_bmap;
+
+extern int smbw_busy;
+
+/***************************************************** 
+map a fd to a smbw_dir structure
+*******************************************************/
+struct smbw_dir *smbw_dir(int fd)
+{
+	struct smbw_dir *dir;
+
+	for (dir=smbw_dirs;dir;dir=dir->next) {
+		if (dir->fd == fd) return dir;
+	}
+	return NULL;
+}
+
+/***************************************************** 
+check if a DIR* is one of ours
+*******************************************************/
+int smbw_dirp(DIR *dirp)
+{
+	struct smbw_dir *d = (struct smbw_dir *)dirp;
+	struct smbw_dir *dir;
+
+	for (dir=smbw_dirs;dir;dir=dir->next) {
+		if (dir == d) return 1;
+	}
+	return 0;
+}
+
+/***************************************************** 
+free a smbw_dir structure and all entries
+*******************************************************/
+static void free_dir(struct smbw_dir *dir)
+{
+	if(!dir) return;
+
+	SAFE_FREE(dir->list);
+	SAFE_FREE(dir->path);
+	ZERO_STRUCTP(dir);
+	SAFE_FREE(dir);
+}
+
+static struct smbw_dir *cur_dir;
+
+/***************************************************** 
+add a entry to a directory listing
+*******************************************************/
+static void smbw_dir_add(struct file_info *finfo, const char *mask, 
+			 void *state)
+{
+	struct file_info *cdl;
+
+	DEBUG(5,("%s\n", finfo->name));
+
+	if (cur_dir->malloced == cur_dir->count) {
+		cdl = (struct file_info *)Realloc(cur_dir->list, 
+							    sizeof(cur_dir->list[0])*
+							    (cur_dir->count+100));
+		if (!cdl) {
+			/* oops */
+			return;
+		}
+		cur_dir->list = cdl;
+		cur_dir->malloced += 100;
+	}
+
+	cur_dir->list[cur_dir->count] = *finfo;
+	cur_dir->count++;
+}
+
+/***************************************************** 
+add a entry to a directory listing
+*******************************************************/
+static void smbw_share_add(const char *share, uint32 type, 
+			   const char *comment, void *state)
+{
+	struct file_info finfo;
+
+	if (strcmp(share,"IPC$") == 0) return;
+
+	ZERO_STRUCT(finfo);
+
+	pstrcpy(finfo.name, share);
+	finfo.mode = aRONLY | aDIR;	
+
+	smbw_dir_add(&finfo, NULL, NULL);
+}
+
+
+/***************************************************** 
+add a server to a directory listing
+*******************************************************/
+static void smbw_server_add(const char *name, uint32 type, 
+			    const char *comment, void *state)
+{
+	struct file_info finfo;
+
+	ZERO_STRUCT(finfo);
+
+	pstrcpy(finfo.name, name);
+	finfo.mode = aRONLY | aDIR;	
+
+	smbw_dir_add(&finfo, NULL, NULL);
+}
+
+
+/***************************************************** 
+add a entry to a directory listing
+*******************************************************/
+static void smbw_printjob_add(struct print_job_info *job)
+{
+	struct file_info finfo;
+
+	ZERO_STRUCT(finfo);
+
+	pstrcpy(finfo.name, job->name);
+	finfo.mode = aRONLY | aDIR;	
+	finfo.mtime = job->t;
+	finfo.atime = job->t;
+	finfo.ctime = job->t;
+	finfo.uid = nametouid(job->user);
+	finfo.mode = aRONLY;
+	finfo.size = job->size;
+
+	smbw_dir_add(&finfo, NULL, NULL);
+}
+
+
+/***************************************************** 
+open a directory on the server
+*******************************************************/
+int smbw_dir_open(const char *fname)
+{
+	fstring server, share;
+	pstring path;
+	struct smbw_server *srv=NULL;
+	struct smbw_dir *dir=NULL;
+	pstring mask;
+	int fd;
+	char *s, *p;
+
+	if (!fname) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	smbw_init();
+
+	/* work out what server they are after */
+	s = smbw_parse_path(fname, server, share, path);
+
+	DEBUG(4,("dir_open share=%s\n", share));
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	dir = (struct smbw_dir *)malloc(sizeof(*dir));
+	if (!dir) {
+		errno = ENOMEM;
+		goto failed;
+	}
+
+	ZERO_STRUCTP(dir);
+
+	cur_dir = dir;
+
+	slprintf(mask, sizeof(mask)-1, "%s\\*", path);
+	all_string_sub(mask,"\\\\","\\",0);
+
+	if ((p=strstr(srv->server_name,"#01"))) {
+		*p = 0;
+		smbw_server_add(".",0,"", NULL);
+		smbw_server_add("..",0,"", NULL);
+		smbw_NetServerEnum(&srv->cli, srv->server_name, 
+				   SV_TYPE_DOMAIN_ENUM, smbw_server_add, NULL);
+		*p = '#';
+	} else if ((p=strstr(srv->server_name,"#1D"))) {
+		DEBUG(4,("doing NetServerEnum\n"));
+		*p = 0;
+		smbw_server_add(".",0,"", NULL);
+		smbw_server_add("..",0,"", NULL);
+		smbw_NetServerEnum(&srv->cli, srv->server_name, SV_TYPE_ALL,
+				   smbw_server_add, NULL);
+		*p = '#';
+	} else if (strcmp(srv->cli.dev,"IPC") == 0) {
+		DEBUG(4,("doing NetShareEnum\n"));
+		smbw_share_add(".",0,"", NULL);
+		smbw_share_add("..",0,"", NULL);
+		if (smbw_RNetShareEnum(&srv->cli, smbw_share_add, NULL) < 0) {
+			errno = smbw_errno(&srv->cli);
+			goto failed;
+		}
+	} else if (strncmp(srv->cli.dev,"LPT",3) == 0) {
+		smbw_share_add(".",0,"", NULL);
+		smbw_share_add("..",0,"", NULL);
+		if (cli_print_queue(&srv->cli, smbw_printjob_add) < 0) {
+			errno = smbw_errno(&srv->cli);
+			goto failed;
+		}
+	} else {
+#if 0
+		if (strcmp(path,"\\") == 0) {
+			smbw_share_add(".",0,"");
+			smbw_share_add("..",0,"");
+		}
+#endif
+		if (cli_list(&srv->cli, mask, aHIDDEN|aSYSTEM|aDIR, 
+			     smbw_dir_add, NULL) < 0) {
+			errno = smbw_errno(&srv->cli);
+			goto failed;
+		}
+	}
+
+	cur_dir = NULL;
+	
+	fd = open(SMBW_DUMMY, O_WRONLY);
+	if (fd == -1) {
+		errno = EMFILE;
+		goto failed;
+	}
+
+	if (bitmap_query(smbw_file_bmap, fd)) {
+		DEBUG(0,("ERROR: fd used in smbw_dir_open\n"));
+		errno = EIO;
+		goto failed;
+	}
+
+	DLIST_ADD(smbw_dirs, dir);
+	
+	bitmap_set(smbw_file_bmap, fd);
+
+	dir->fd = fd;
+	dir->srv = srv;
+	dir->path = strdup(s);
+
+	DEBUG(4,("  -> %d\n", dir->count));
+
+	return dir->fd;
+
+ failed:
+	free_dir(dir);
+	
+	return -1;
+}
+
+/***************************************************** 
+a wrapper for fstat() on a directory
+*******************************************************/
+int smbw_dir_fstat(int fd, struct stat *st)
+{
+	struct smbw_dir *dir;
+
+	dir = smbw_dir(fd);
+	if (!dir) {
+		errno = EBADF;
+		return -1;
+	}
+
+	ZERO_STRUCTP(st);
+
+	smbw_setup_stat(st, "", dir->count*DIRP_SIZE, aDIR);
+
+	st->st_dev = dir->srv->dev;
+
+	return 0;
+}
+
+/***************************************************** 
+close a directory handle
+*******************************************************/
+int smbw_dir_close(int fd)
+{
+	struct smbw_dir *dir;
+
+	dir = smbw_dir(fd);
+	if (!dir) {
+		errno = EBADF;
+		return -1;
+	}
+
+	bitmap_clear(smbw_file_bmap, dir->fd);
+	close(dir->fd);
+	
+	DLIST_REMOVE(smbw_dirs, dir);
+
+	free_dir(dir);
+
+	return 0;
+}
+
+/***************************************************** 
+a wrapper for getdents()
+*******************************************************/
+int smbw_getdents(unsigned int fd, struct dirent *dirp, int count)
+{
+	struct smbw_dir *dir;
+	int n=0;
+
+	smbw_busy++;
+
+	dir = smbw_dir(fd);
+	if (!dir) {
+		errno = EBADF;
+		smbw_busy--;
+		return -1;
+	}
+
+	while (count>=DIRP_SIZE && (dir->offset < dir->count)) {
+#if HAVE_DIRENT_D_OFF
+		dirp->d_off = (dir->offset+1)*DIRP_SIZE;
+#endif
+		dirp->d_reclen = DIRP_SIZE;
+		fstrcpy(&dirp->d_name[0], dir->list[dir->offset].name);
+		dirp->d_ino = smbw_inode(dir->list[dir->offset].name);
+		dir->offset++;
+		count -= dirp->d_reclen;
+#if HAVE_DIRENT_D_OFF
+		if (dir->offset == dir->count) {
+			dirp->d_off = -1;
+		}
+#endif
+		dirp = (struct dirent *)(((char *)dirp) + DIRP_SIZE);
+		n++;
+	}
+
+	smbw_busy--;
+	return n*DIRP_SIZE;
+}
+
+
+/***************************************************** 
+a wrapper for chdir()
+*******************************************************/
+int smbw_chdir(const char *name)
+{
+	struct smbw_server *srv;
+	fstring server, share;
+	pstring path;
+	uint16 mode = aDIR;
+	char *cwd;
+	int len;
+
+	smbw_init();
+
+	len = strlen(smbw_prefix);
+
+	if (smbw_busy) return real_chdir(name);
+
+	smbw_busy++;
+
+	if (!name) {
+		errno = EINVAL;
+		goto failed;
+	}
+
+	DEBUG(4,("smbw_chdir(%s)\n", name));
+
+	/* work out what server they are after */
+	cwd = smbw_parse_path(name, server, share, path);
+
+	/* a special case - accept cd to /smb */
+	if (strncmp(cwd, smbw_prefix, len-1) == 0 &&
+	    cwd[len-1] == 0) {
+		goto success1;
+	}
+
+	if (strncmp(cwd,smbw_prefix,strlen(smbw_prefix))) {
+		if (real_chdir(cwd) == 0) {
+			goto success2;
+		}
+		goto failed;
+	}
+
+	/* get a connection to the server */
+	srv = smbw_server(server, share);
+	if (!srv) {
+		/* smbw_server sets errno */
+		goto failed;
+	}
+
+	if (strncmp(srv->cli.dev,"IPC",3) &&
+	    strncmp(srv->cli.dev,"LPT",3) &&
+	    !smbw_getatr(srv, path, 
+			 &mode, NULL, NULL, NULL, NULL, NULL)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+
+	if (!(mode & aDIR)) {
+		errno = ENOTDIR;
+		goto failed;
+	}
+
+ success1:
+	/* we don't want the old directory to be busy */
+	real_chdir("/");
+
+ success2:
+
+	DEBUG(4,("set SMBW_CWD to %s\n", cwd));
+
+	pstrcpy(smbw_cwd, cwd);
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for lseek() on directories
+*******************************************************/
+off_t smbw_dir_lseek(int fd, off_t offset, int whence)
+{
+	struct smbw_dir *dir;
+	off_t ret;
+
+	dir = smbw_dir(fd);
+	if (!dir) {
+		errno = EBADF;
+		return -1;
+	}
+
+	switch (whence) {
+	case SEEK_SET:
+		dir->offset = offset/DIRP_SIZE;
+		break;
+	case SEEK_CUR:
+		dir->offset += offset/DIRP_SIZE;
+		break;
+	case SEEK_END:
+		dir->offset = (dir->count * DIRP_SIZE) + offset;
+		dir->offset /= DIRP_SIZE;
+		break;
+	}
+
+	ret = dir->offset * DIRP_SIZE;
+
+	DEBUG(4,("   -> %d\n", (int)ret));
+
+	return ret;
+}
+
+
+/***************************************************** 
+a wrapper for mkdir()
+*******************************************************/
+int smbw_mkdir(const char *fname, mode_t mode)
+{
+	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 (!cli_mkdir(&srv->cli, path)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+/***************************************************** 
+a wrapper for rmdir()
+*******************************************************/
+int smbw_rmdir(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 (!cli_rmdir(&srv->cli, path)) {
+		errno = smbw_errno(&srv->cli);
+		goto failed;
+	}
+
+	smbw_busy--;
+	return 0;
+
+ failed:
+	smbw_busy--;
+	return -1;
+}
+
+
+/***************************************************** 
+a wrapper for getcwd()
+*******************************************************/
+char *smbw_getcwd(char *buf, size_t size)
+{
+	smbw_init();
+
+	if (smbw_busy) {
+		return (char *)real_getcwd(buf, size);
+	}
+
+	smbw_busy++;
+
+	if (!buf) {
+		if (size <= 0) size = strlen(smbw_cwd)+1;
+		buf = (char *)malloc(size);
+		if (!buf) {
+			errno = ENOMEM;
+			smbw_busy--;
+			return NULL;
+		}
+	}
+
+	if (strlen(smbw_cwd) > size-1) {
+		errno = ERANGE;
+		smbw_busy--;
+		return NULL;
+	}
+
+	safe_strcpy(buf, smbw_cwd, size);
+
+	smbw_busy--;
+	return buf;
+}
+
+/***************************************************** 
+a wrapper for fchdir()
+*******************************************************/
+int smbw_fchdir(unsigned int fd)
+{
+	struct smbw_dir *dir;
+	int ret;
+
+	smbw_busy++;
+
+	dir = smbw_dir(fd);
+	if (dir) {
+		smbw_busy--;
+		return chdir(dir->path);
+	}	
+
+	ret = real_fchdir(fd);
+	if (ret == 0) {
+		sys_getwd(smbw_cwd);		
+	}
+
+	smbw_busy--;
+	return ret;
+}
+
+/***************************************************** 
+open a directory on the server
+*******************************************************/
+DIR *smbw_opendir(const char *fname)
+{
+	int fd;
+
+	smbw_busy++;
+
+	fd = smbw_dir_open(fname);
+
+	if (fd == -1) {
+		smbw_busy--;
+		return NULL;
+	}
+
+	smbw_busy--;
+
+	return (DIR *)smbw_dir(fd);
+}
+
+/***************************************************** 
+read one entry from a directory
+*******************************************************/
+struct dirent *smbw_readdir(DIR *dirp)
+{
+	struct smbw_dir *d = (struct smbw_dir *)dirp;
+	static union {
+		char buf[DIRP_SIZE];
+		struct dirent de;
+	} dbuf;
+
+	if (smbw_getdents(d->fd, &dbuf.de, DIRP_SIZE) > 0) 
+		return &dbuf.de;
+
+	return NULL;
+}
+
+/***************************************************** 
+close a DIR*
+*******************************************************/
+int smbw_closedir(DIR *dirp)
+{
+	struct smbw_dir *d = (struct smbw_dir *)dirp;
+	return smbw_close(d->fd);
+}
+
+/***************************************************** 
+seek in a directory
+*******************************************************/
+void smbw_seekdir(DIR *dirp, off_t offset)
+{
+	struct smbw_dir *d = (struct smbw_dir *)dirp;
+	smbw_dir_lseek(d->fd,offset, SEEK_SET);
+}
+
+/***************************************************** 
+current loc in a directory
+*******************************************************/
+off_t smbw_telldir(DIR *dirp)
+{
+	struct smbw_dir *d = (struct smbw_dir *)dirp;
+	return smbw_dir_lseek(d->fd,0,SEEK_CUR);
+}