--- /dev/null
+/*
+ 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, global_myname(), 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 = SMB_MALLOC_P(struct smbw_server);
+ 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 = SMB_STRDUP(server);
+ if (!srv->server_name) {
+ errno = ENOMEM;
+ goto failed;
+ }
+
+ srv->share_name = SMB_STRDUP(share);
+ if (!srv->share_name) {
+ errno = ENOMEM;
+ goto failed;
+ }
+
+ srv->workgroup = SMB_STRDUP(workgroup);
+ if (!srv->workgroup) {
+ errno = ENOMEM;
+ goto failed;
+ }
+
+ srv->username = SMB_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 = SMB_MALLOC_P(struct smbw_file);
+ if (!file) {
+ errno = ENOMEM;
+ goto failed;
+ }
+
+ ZERO_STRUCTP(file);
+
+ file->f = SMB_MALLOC_P(struct smbw_filedes);
+ if (!file->f) {
+ errno = ENOMEM;
+ goto failed;
+ }
+
+ ZERO_STRUCTP(file->f);
+
+ file->f->cli_fd = fd;
+ file->f->fname = SMB_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;
+ SMB_OFF_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 = SMB_MALLOC_P(struct smbw_file);
+ 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 = SMB_MALLOC_P(struct smbw_file);
+ 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;
+#ifdef HAVE_STAT_ST_BLKSIZE
+ st64->st_blksize = st->st_blksize;
+#endif
+#ifdef HAVE_STAT_ST_BLOCKS
+ st64->st_blocks = st->st_blocks;
+#endif
+}
+#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;
+#ifdef HAVE_STAT_ST_BLKSIZE
+ st->st_blksize = kbuf->st_blksize;
+#endif
+#ifdef HAVE_STAT_ST_BLOCKS
+ st->st_blocks = kbuf->st_blocks;
+#endif
+ st->st_atime = kbuf->st_atime_;
+ st->st_mtime = kbuf->st_mtime_;
+ st->st_ctime = kbuf->st_ctime_;
+}
+#endif
projects / samba / blobdiff