mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
cd68afe312
Changed "SMB/Netbios" to "SMB/CIFS" in file header.
(This used to be commit 6a58c9bd06
)
689 lines
14 KiB
C
689 lines
14 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB wrapper directory functions
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Copyright (C) Andrew Tridgell 1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "realcalls.h"
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extern pstring smbw_cwd;
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extern fstring smbw_prefix;
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static struct smbw_dir *smbw_dirs;
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extern struct bitmap *smbw_file_bmap;
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extern int smbw_busy;
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/*****************************************************
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map a fd to a smbw_dir structure
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*******************************************************/
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struct smbw_dir *smbw_dir(int fd)
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{
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struct smbw_dir *dir;
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for (dir=smbw_dirs;dir;dir=dir->next) {
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if (dir->fd == fd) return dir;
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}
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return NULL;
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}
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/*****************************************************
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check if a DIR* is one of ours
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*******************************************************/
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int smbw_dirp(DIR *dirp)
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{
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struct smbw_dir *d = (struct smbw_dir *)dirp;
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struct smbw_dir *dir;
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for (dir=smbw_dirs;dir;dir=dir->next) {
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if (dir == d) return 1;
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}
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return 0;
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}
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/*****************************************************
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free a smbw_dir structure and all entries
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*******************************************************/
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static void free_dir(struct smbw_dir *dir)
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{
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if(!dir) return;
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SAFE_FREE(dir->list);
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SAFE_FREE(dir->path);
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ZERO_STRUCTP(dir);
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SAFE_FREE(dir);
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}
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static struct smbw_dir *cur_dir;
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/*****************************************************
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add a entry to a directory listing
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*******************************************************/
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static void smbw_dir_add(struct file_info *finfo, const char *mask,
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void *state)
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{
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struct file_info *cdl;
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DEBUG(5,("%s\n", finfo->name));
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if (cur_dir->malloced == cur_dir->count) {
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cdl = (struct file_info *)Realloc(cur_dir->list,
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sizeof(cur_dir->list[0])*
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(cur_dir->count+100));
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if (!cdl) {
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/* oops */
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return;
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}
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cur_dir->list = cdl;
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cur_dir->malloced += 100;
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}
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cur_dir->list[cur_dir->count] = *finfo;
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cur_dir->count++;
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}
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/*****************************************************
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add a entry to a directory listing
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*******************************************************/
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static void smbw_share_add(const char *share, uint32 type,
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const char *comment, void *state)
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{
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struct file_info finfo;
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if (strcmp(share,"IPC$") == 0) return;
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ZERO_STRUCT(finfo);
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pstrcpy(finfo.name, share);
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finfo.mode = aRONLY | aDIR;
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smbw_dir_add(&finfo, NULL, NULL);
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}
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/*****************************************************
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add a server to a directory listing
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*******************************************************/
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static void smbw_server_add(const char *name, uint32 type,
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const char *comment, void *state)
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{
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struct file_info finfo;
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ZERO_STRUCT(finfo);
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pstrcpy(finfo.name, name);
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finfo.mode = aRONLY | aDIR;
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smbw_dir_add(&finfo, NULL, NULL);
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}
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/*****************************************************
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add a entry to a directory listing
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*******************************************************/
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static void smbw_printjob_add(struct print_job_info *job)
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{
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struct file_info finfo;
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ZERO_STRUCT(finfo);
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pstrcpy(finfo.name, job->name);
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finfo.mode = aRONLY | aDIR;
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finfo.mtime = job->t;
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finfo.atime = job->t;
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finfo.ctime = job->t;
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finfo.uid = nametouid(job->user);
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finfo.mode = aRONLY;
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finfo.size = job->size;
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smbw_dir_add(&finfo, NULL, NULL);
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}
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/*****************************************************
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open a directory on the server
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*******************************************************/
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int smbw_dir_open(const char *fname)
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{
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fstring server, share;
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pstring path;
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struct smbw_server *srv=NULL;
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struct smbw_dir *dir=NULL;
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pstring mask;
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int fd;
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char *s, *p;
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if (!fname) {
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errno = EINVAL;
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return -1;
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}
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smbw_init();
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/* work out what server they are after */
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s = smbw_parse_path(fname, server, share, path);
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DEBUG(4,("dir_open share=%s\n", share));
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/* get a connection to the server */
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srv = smbw_server(server, share);
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if (!srv) {
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/* smbw_server sets errno */
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goto failed;
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}
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dir = (struct smbw_dir *)malloc(sizeof(*dir));
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if (!dir) {
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errno = ENOMEM;
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goto failed;
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}
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ZERO_STRUCTP(dir);
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cur_dir = dir;
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slprintf(mask, sizeof(mask)-1, "%s\\*", path);
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all_string_sub(mask,"\\\\","\\",0);
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if ((p=strstr(srv->server_name,"#01"))) {
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*p = 0;
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smbw_server_add(".",0,"", NULL);
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smbw_server_add("..",0,"", NULL);
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smbw_NetServerEnum(&srv->cli, srv->server_name,
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SV_TYPE_DOMAIN_ENUM, smbw_server_add, NULL);
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*p = '#';
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} else if ((p=strstr(srv->server_name,"#1D"))) {
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DEBUG(4,("doing NetServerEnum\n"));
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*p = 0;
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smbw_server_add(".",0,"", NULL);
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smbw_server_add("..",0,"", NULL);
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smbw_NetServerEnum(&srv->cli, srv->server_name, SV_TYPE_ALL,
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smbw_server_add, NULL);
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*p = '#';
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} else if (strcmp(srv->cli.dev,"IPC") == 0) {
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DEBUG(4,("doing NetShareEnum\n"));
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smbw_share_add(".",0,"", NULL);
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smbw_share_add("..",0,"", NULL);
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if (smbw_RNetShareEnum(&srv->cli, smbw_share_add, NULL) < 0) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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} else if (strncmp(srv->cli.dev,"LPT",3) == 0) {
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smbw_share_add(".",0,"", NULL);
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smbw_share_add("..",0,"", NULL);
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if (cli_print_queue(&srv->cli, smbw_printjob_add) < 0) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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} else {
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#if 0
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if (strcmp(path,"\\") == 0) {
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smbw_share_add(".",0,"");
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smbw_share_add("..",0,"");
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}
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#endif
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if (cli_list(&srv->cli, mask, aHIDDEN|aSYSTEM|aDIR,
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smbw_dir_add, NULL) < 0) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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}
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cur_dir = NULL;
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fd = open(SMBW_DUMMY, O_WRONLY);
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if (fd == -1) {
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errno = EMFILE;
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goto failed;
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}
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if (bitmap_query(smbw_file_bmap, fd)) {
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DEBUG(0,("ERROR: fd used in smbw_dir_open\n"));
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errno = EIO;
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goto failed;
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}
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DLIST_ADD(smbw_dirs, dir);
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bitmap_set(smbw_file_bmap, fd);
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dir->fd = fd;
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dir->srv = srv;
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dir->path = strdup(s);
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DEBUG(4,(" -> %d\n", dir->count));
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return dir->fd;
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failed:
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free_dir(dir);
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return -1;
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}
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/*****************************************************
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a wrapper for fstat() on a directory
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*******************************************************/
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int smbw_dir_fstat(int fd, struct stat *st)
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{
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struct smbw_dir *dir;
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dir = smbw_dir(fd);
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if (!dir) {
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errno = EBADF;
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return -1;
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}
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ZERO_STRUCTP(st);
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smbw_setup_stat(st, "", dir->count*DIRP_SIZE, aDIR);
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st->st_dev = dir->srv->dev;
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return 0;
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}
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/*****************************************************
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close a directory handle
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*******************************************************/
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int smbw_dir_close(int fd)
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{
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struct smbw_dir *dir;
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dir = smbw_dir(fd);
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if (!dir) {
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errno = EBADF;
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return -1;
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}
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bitmap_clear(smbw_file_bmap, dir->fd);
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close(dir->fd);
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DLIST_REMOVE(smbw_dirs, dir);
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free_dir(dir);
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return 0;
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}
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/*****************************************************
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a wrapper for getdents()
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*******************************************************/
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int smbw_getdents(unsigned int fd, struct dirent *dirp, int count)
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{
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struct smbw_dir *dir;
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int n=0;
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smbw_busy++;
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dir = smbw_dir(fd);
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if (!dir) {
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errno = EBADF;
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smbw_busy--;
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return -1;
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}
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while (count>=DIRP_SIZE && (dir->offset < dir->count)) {
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#if HAVE_DIRENT_D_OFF
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dirp->d_off = (dir->offset+1)*DIRP_SIZE;
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#endif
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dirp->d_reclen = DIRP_SIZE;
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fstrcpy(&dirp->d_name[0], dir->list[dir->offset].name);
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dirp->d_ino = smbw_inode(dir->list[dir->offset].name);
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dir->offset++;
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count -= dirp->d_reclen;
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#if HAVE_DIRENT_D_OFF
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if (dir->offset == dir->count) {
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dirp->d_off = -1;
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}
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#endif
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dirp = (struct dirent *)(((char *)dirp) + DIRP_SIZE);
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n++;
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}
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smbw_busy--;
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return n*DIRP_SIZE;
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}
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/*****************************************************
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a wrapper for chdir()
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*******************************************************/
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int smbw_chdir(const char *name)
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{
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struct smbw_server *srv;
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fstring server, share;
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pstring path;
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uint16 mode = aDIR;
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char *cwd;
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int len;
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smbw_init();
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len = strlen(smbw_prefix);
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if (smbw_busy) return real_chdir(name);
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smbw_busy++;
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if (!name) {
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errno = EINVAL;
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goto failed;
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}
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DEBUG(4,("smbw_chdir(%s)\n", name));
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/* work out what server they are after */
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cwd = smbw_parse_path(name, server, share, path);
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/* a special case - accept cd to /smb */
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if (strncmp(cwd, smbw_prefix, len-1) == 0 &&
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cwd[len-1] == 0) {
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goto success1;
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}
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if (strncmp(cwd,smbw_prefix,strlen(smbw_prefix))) {
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if (real_chdir(cwd) == 0) {
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goto success2;
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}
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goto failed;
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}
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/* get a connection to the server */
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srv = smbw_server(server, share);
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if (!srv) {
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/* smbw_server sets errno */
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goto failed;
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}
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if (strncmp(srv->cli.dev,"IPC",3) &&
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strncmp(srv->cli.dev,"LPT",3) &&
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!smbw_getatr(srv, path,
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&mode, NULL, NULL, NULL, NULL, NULL)) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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if (!(mode & aDIR)) {
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errno = ENOTDIR;
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goto failed;
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}
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success1:
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/* we don't want the old directory to be busy */
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real_chdir("/");
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success2:
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DEBUG(4,("set SMBW_CWD to %s\n", cwd));
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pstrcpy(smbw_cwd, cwd);
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smbw_busy--;
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return 0;
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failed:
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smbw_busy--;
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return -1;
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}
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/*****************************************************
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a wrapper for lseek() on directories
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*******************************************************/
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off_t smbw_dir_lseek(int fd, off_t offset, int whence)
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{
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struct smbw_dir *dir;
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off_t ret;
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dir = smbw_dir(fd);
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if (!dir) {
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errno = EBADF;
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return -1;
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}
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switch (whence) {
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case SEEK_SET:
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dir->offset = offset/DIRP_SIZE;
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break;
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case SEEK_CUR:
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dir->offset += offset/DIRP_SIZE;
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break;
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case SEEK_END:
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dir->offset = (dir->count * DIRP_SIZE) + offset;
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dir->offset /= DIRP_SIZE;
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break;
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}
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ret = dir->offset * DIRP_SIZE;
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DEBUG(4,(" -> %d\n", (int)ret));
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return ret;
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}
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/*****************************************************
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a wrapper for mkdir()
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*******************************************************/
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int smbw_mkdir(const char *fname, mode_t mode)
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{
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struct smbw_server *srv;
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fstring server, share;
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pstring path;
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if (!fname) {
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errno = EINVAL;
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return -1;
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}
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smbw_init();
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smbw_busy++;
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/* work out what server they are after */
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smbw_parse_path(fname, server, share, path);
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/* get a connection to the server */
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srv = smbw_server(server, share);
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if (!srv) {
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/* smbw_server sets errno */
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goto failed;
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}
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if (!cli_mkdir(&srv->cli, path)) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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smbw_busy--;
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return 0;
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failed:
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smbw_busy--;
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return -1;
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}
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/*****************************************************
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a wrapper for rmdir()
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*******************************************************/
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int smbw_rmdir(const char *fname)
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{
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struct smbw_server *srv;
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fstring server, share;
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pstring path;
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if (!fname) {
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errno = EINVAL;
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return -1;
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}
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smbw_init();
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smbw_busy++;
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/* work out what server they are after */
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smbw_parse_path(fname, server, share, path);
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/* get a connection to the server */
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srv = smbw_server(server, share);
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if (!srv) {
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/* smbw_server sets errno */
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goto failed;
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}
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if (!cli_rmdir(&srv->cli, path)) {
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errno = smbw_errno(&srv->cli);
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goto failed;
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}
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smbw_busy--;
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return 0;
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failed:
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smbw_busy--;
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return -1;
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}
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/*****************************************************
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a wrapper for getcwd()
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*******************************************************/
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char *smbw_getcwd(char *buf, size_t size)
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{
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smbw_init();
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if (smbw_busy) {
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return (char *)real_getcwd(buf, size);
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}
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smbw_busy++;
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if (!buf) {
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if (size <= 0) size = strlen(smbw_cwd)+1;
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buf = (char *)malloc(size);
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if (!buf) {
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errno = ENOMEM;
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smbw_busy--;
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return NULL;
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|
}
|
|
}
|
|
|
|
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);
|
|
}
|