--- /dev/null
+/*
+ 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 = SMB_MALLOC_P(struct smbw_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) || (strequal(share,"IPC$"))) {
+ 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 = SMB_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) &&
+ !strequal(share, "IPC$") &&
+ 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 = SMB_MALLOC_ARRAY(char, 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);
+}
projects / samba / blobdiff