mirror of
https://github.com/samba-team/samba.git
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9b5adeaa39
A bit hard to believe, but substitute.c does not use current_user anymore.
(This used to be commit de5d27d70a
)
916 lines
22 KiB
C
916 lines
22 KiB
C
/*
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Unix SMB/CIFS implementation.
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string substitution functions
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Copyright (C) Andrew Tridgell 1992-2000
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Copyright (C) Gerald Carter 2006
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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userdom_struct current_user_info;
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fstring remote_proto="UNKNOWN";
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/**
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* Set the 'local' machine name
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* @param local_name the name we are being called
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* @param if this is the 'final' name for us, not be be changed again
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*/
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static char *local_machine;
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void free_local_machine_name(void)
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{
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SAFE_FREE(local_machine);
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}
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bool set_local_machine_name(const char *local_name, bool perm)
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{
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static bool already_perm = false;
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char *tmp_local_machine = NULL;
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char addr[INET6_ADDRSTRLEN];
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size_t len;
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tmp_local_machine = SMB_STRDUP(local_name);
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if (!tmp_local_machine) {
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return false;
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}
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trim_char(tmp_local_machine,' ',' ');
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/*
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* Windows NT/2k uses "*SMBSERVER" and XP uses "*SMBSERV"
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* arrggg!!!
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*/
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if (strequal(tmp_local_machine, "*SMBSERVER") ||
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strequal(tmp_local_machine, "*SMBSERV") ) {
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SAFE_FREE(local_machine);
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local_machine = SMB_STRDUP(client_socket_addr(get_client_fd(),
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addr, sizeof(addr)) );
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SAFE_FREE(tmp_local_machine);
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return local_machine ? true : false;
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}
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if (already_perm) {
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return true;
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}
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SAFE_FREE(local_machine);
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len = strlen(tmp_local_machine);
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local_machine = SMB_CALLOC_ARRAY(char, len+1);
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if (!local_machine) {
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SAFE_FREE(tmp_local_machine);
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return false;
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}
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/* alpha_strcpy includes the space for the terminating nul. */
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alpha_strcpy(local_machine,tmp_local_machine,
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SAFE_NETBIOS_CHARS,len+1);
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strlower_m(local_machine);
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SAFE_FREE(tmp_local_machine);
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already_perm = perm;
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return true;
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}
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const char *get_local_machine_name(void)
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{
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if (!local_machine || !*local_machine) {
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return global_myname();
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}
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return local_machine;
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}
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/**
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* Set the 'remote' machine name
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* @param remote_name the name our client wants to be called by
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* @param if this is the 'final' name for them, not be be changed again
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*/
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static char *remote_machine;
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bool set_remote_machine_name(const char *remote_name, bool perm)
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{
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static bool already_perm = False;
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char *tmp_remote_machine;
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size_t len;
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if (already_perm) {
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return true;
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}
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tmp_remote_machine = SMB_STRDUP(remote_name);
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if (!tmp_remote_machine) {
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return false;
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}
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trim_char(tmp_remote_machine,' ',' ');
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SAFE_FREE(remote_machine);
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len = strlen(tmp_remote_machine);
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remote_machine = SMB_CALLOC_ARRAY(char, len+1);
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if (!remote_machine) {
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SAFE_FREE(tmp_remote_machine);
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return false;
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}
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/* alpha_strcpy includes the space for the terminating nul. */
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alpha_strcpy(remote_machine,tmp_remote_machine,
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SAFE_NETBIOS_CHARS,len+1);
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strlower_m(remote_machine);
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SAFE_FREE(tmp_remote_machine);
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already_perm = perm;
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return true;
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}
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const char *get_remote_machine_name(void)
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{
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return remote_machine ? remote_machine : "";
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}
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/*******************************************************************
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Setup the string used by %U substitution.
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********************************************************************/
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static char *smb_user_name;
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void sub_set_smb_name(const char *name)
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{
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char *tmp;
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size_t len;
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bool is_machine_account = false;
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/* don't let anonymous logins override the name */
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if (!name || !*name) {
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return;
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}
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tmp = SMB_STRDUP(name);
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if (!tmp) {
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return;
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}
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trim_char(tmp, ' ', ' ');
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strlower_m(tmp);
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len = strlen(tmp);
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if (len == 0) {
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SAFE_FREE(tmp);
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return;
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}
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/* long story but here goes....we have to allow usernames
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ending in '$' as they are valid machine account names.
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So check for a machine account and re-add the '$'
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at the end after the call to alpha_strcpy(). --jerry */
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if (tmp[len-1] == '$') {
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is_machine_account = True;
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}
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SAFE_FREE(smb_user_name);
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smb_user_name = SMB_CALLOC_ARRAY(char, len+1);
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if (!smb_user_name) {
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SAFE_FREE(tmp);
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return;
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}
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/* alpha_strcpy includes the space for the terminating nul. */
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alpha_strcpy(smb_user_name, tmp,
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SAFE_NETBIOS_CHARS,
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len+1);
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SAFE_FREE(tmp);
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if (is_machine_account) {
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len = strlen(smb_user_name);
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smb_user_name[len-1] = '$';
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}
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}
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static const char *get_smb_user_name(void)
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{
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return smb_user_name ? smb_user_name : "";
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}
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/*******************************************************************
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Setup the strings used by substitutions. Called per packet. Ensure
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%U name is set correctly also.
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smb_name must be sanitized by alpha_strcpy
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********************************************************************/
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void set_current_user_info(const char *smb_name, const char *unix_name,
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const char *full_name, const char *domain)
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{
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fstrcpy(current_user_info.smb_name, smb_name);
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fstrcpy(current_user_info.unix_name, unix_name);
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fstrcpy(current_user_info.full_name, full_name);
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fstrcpy(current_user_info.domain, domain);
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/* The following is safe as current_user_info.smb_name
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* has already been sanitised in register_existing_vuid. */
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sub_set_smb_name(current_user_info.smb_name);
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}
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/*******************************************************************
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Return the current active user name.
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*******************************************************************/
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const char *get_current_username(void)
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{
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if (current_user_info.smb_name[0] == '\0' ) {
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return get_smb_user_name();
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}
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return current_user_info.smb_name;
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}
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/*******************************************************************
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Given a pointer to a %$(NAME) in p and the whole string in str
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expand it as an environment variable.
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Return a new allocated and expanded string.
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Based on code by Branko Cibej <branko.cibej@hermes.si>
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When this is called p points at the '%' character.
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May substitute multiple occurrencies of the same env var.
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********************************************************************/
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static char * realloc_expand_env_var(char *str, char *p)
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{
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char *envname;
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char *envval;
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char *q, *r;
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int copylen;
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if (p[0] != '%' || p[1] != '$' || p[2] != '(') {
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return str;
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}
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/*
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* Look for the terminating ')'.
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*/
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if ((q = strchr_m(p,')')) == NULL) {
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DEBUG(0,("expand_env_var: Unterminated environment variable [%s]\n", p));
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return str;
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}
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/*
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* Extract the name from within the %$(NAME) string.
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*/
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r = p + 3;
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copylen = q - r;
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/* reserve space for use later add %$() chars */
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if ( (envname = (char *)SMB_MALLOC(copylen + 1 + 4)) == NULL ) {
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return NULL;
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}
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strncpy(envname,r,copylen);
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envname[copylen] = '\0';
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if ((envval = getenv(envname)) == NULL) {
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DEBUG(0,("expand_env_var: Environment variable [%s] not set\n", envname));
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SAFE_FREE(envname);
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return str;
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}
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/*
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* Copy the full %$(NAME) into envname so it
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* can be replaced.
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*/
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copylen = q + 1 - p;
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strncpy(envname,p,copylen);
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envname[copylen] = '\0';
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r = realloc_string_sub(str, envname, envval);
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SAFE_FREE(envname);
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return r;
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}
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/*******************************************************************
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*******************************************************************/
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static char *longvar_domainsid( void )
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{
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DOM_SID sid;
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fstring tmp;
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char *sid_string;
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if ( !secrets_fetch_domain_sid( lp_workgroup(), &sid ) ) {
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return NULL;
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}
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sid_string = SMB_STRDUP( sid_to_fstring( tmp, &sid ) );
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if ( !sid_string ) {
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DEBUG(0,("longvar_domainsid: failed to dup SID string!\n"));
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}
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return sid_string;
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}
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/*******************************************************************
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*******************************************************************/
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struct api_longvar {
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const char *name;
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char* (*fn)( void );
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};
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static struct api_longvar longvar_table[] = {
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{ "DomainSID", longvar_domainsid },
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{ NULL, NULL }
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};
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static char *get_longvar_val( const char *varname )
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{
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int i;
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DEBUG(7,("get_longvar_val: expanding variable [%s]\n", varname));
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for ( i=0; longvar_table[i].name; i++ ) {
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if ( strequal( longvar_table[i].name, varname ) ) {
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return longvar_table[i].fn();
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}
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}
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return NULL;
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}
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/*******************************************************************
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Expand the long smb.conf variable names given a pointer to a %(NAME).
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Return the number of characters by which the pointer should be advanced.
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When this is called p points at the '%' character.
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********************************************************************/
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static char *realloc_expand_longvar(char *str, char *p)
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{
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fstring varname;
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char *value;
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char *q, *r;
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int copylen;
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if ( p[0] != '%' || p[1] != '(' ) {
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return str;
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}
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/* Look for the terminating ')'.*/
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if ((q = strchr_m(p,')')) == NULL) {
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DEBUG(0,("realloc_expand_longvar: Unterminated environment variable [%s]\n", p));
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return str;
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}
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/* Extract the name from within the %(NAME) string.*/
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r = p+2;
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copylen = MIN( (q-r), (sizeof(varname)-1) );
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strncpy(varname, r, copylen);
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varname[copylen] = '\0';
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if ((value = get_longvar_val(varname)) == NULL) {
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DEBUG(0,("realloc_expand_longvar: Variable [%s] not set. Skipping\n", varname));
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return str;
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}
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/* Copy the full %(NAME) into envname so it can be replaced.*/
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copylen = MIN( (q+1-p),(sizeof(varname)-1) );
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strncpy( varname, p, copylen );
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varname[copylen] = '\0';
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r = realloc_string_sub(str, varname, value);
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SAFE_FREE( value );
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/* skip over the %(varname) */
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return r;
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}
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/*******************************************************************
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Patch from jkf@soton.ac.uk
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Added this to implement %p (NIS auto-map version of %H)
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*******************************************************************/
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static const char *automount_path(const char *user_name)
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{
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TALLOC_CTX *ctx = talloc_tos();
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const char *server_path;
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/* use the passwd entry as the default */
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/* this will be the default if WITH_AUTOMOUNT is not used or fails */
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server_path = talloc_strdup(ctx, get_user_home_dir(ctx, user_name));
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if (!server_path) {
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return "";
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}
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#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
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if (lp_nis_home_map()) {
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const char *home_path_start;
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char *automount_value = automount_lookup(ctx, user_name);
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if(automount_value && strlen(automount_value) > 0) {
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home_path_start = strchr_m(automount_value,':');
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if (home_path_start != NULL) {
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DEBUG(5, ("NIS lookup succeeded. "
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"Home path is: %s\n",
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home_path_start ?
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(home_path_start+1):""));
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server_path = talloc_strdup(ctx,
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home_path_start+1);
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if (!server_path) {
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server_path = "";
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}
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}
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} else {
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/* NIS key lookup failed: default to
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* user home directory from password file */
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DEBUG(5, ("NIS lookup failed. Using Home path from "
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"passwd file. Home path is: %s\n", server_path ));
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}
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}
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#endif
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DEBUG(4,("Home server path: %s\n", server_path));
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return server_path;
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}
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/*******************************************************************
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Patch from jkf@soton.ac.uk
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This is Luke's original function with the NIS lookup code
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moved out to a separate function.
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*******************************************************************/
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static const char *automount_server(const char *user_name)
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{
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TALLOC_CTX *ctx = talloc_tos();
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const char *server_name;
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const char *local_machine_name = get_local_machine_name();
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/* use the local machine name as the default */
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/* this will be the default if WITH_AUTOMOUNT is not used or fails */
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if (local_machine_name && *local_machine_name) {
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server_name = talloc_strdup(ctx, local_machine_name);
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} else {
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server_name = talloc_strdup(ctx, global_myname());
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}
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if (!server_name) {
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return "";
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}
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#if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT))
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if (lp_nis_home_map()) {
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char *p;
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char *srv;
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char *automount_value = automount_lookup(ctx, user_name);
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if (!automount_value) {
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return "";
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}
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srv = talloc_strdup(ctx, automount_value);
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if (!srv) {
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return "";
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}
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p = strchr_m(srv, ':');
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if (!p) {
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return "";
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}
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*p = '\0';
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server_name = srv;
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DEBUG(5, ("NIS lookup succeeded. Home server %s\n",
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server_name));
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}
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#endif
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DEBUG(4,("Home server: %s\n", server_name));
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return server_name;
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}
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/****************************************************************************
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Do some standard substitutions in a string.
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len is the length in bytes of the space allowed in string str. If zero means
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don't allow expansions.
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****************************************************************************/
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void standard_sub_basic(const char *smb_name, const char *domain_name,
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char *str, size_t len)
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{
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char *s;
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if ( (s = alloc_sub_basic( smb_name, domain_name, str )) != NULL ) {
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strncpy( str, s, len );
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}
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SAFE_FREE( s );
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}
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|
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/****************************************************************************
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Do some standard substitutions in a string.
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This function will return an allocated string that have to be freed.
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****************************************************************************/
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char *talloc_sub_basic(TALLOC_CTX *mem_ctx, const char *smb_name,
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const char *domain_name, const char *str)
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{
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char *a, *t;
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if ( (a = alloc_sub_basic(smb_name, domain_name, str)) == NULL ) {
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return NULL;
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}
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t = talloc_strdup(mem_ctx, a);
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SAFE_FREE(a);
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return t;
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}
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|
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/****************************************************************************
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****************************************************************************/
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|
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char *alloc_sub_basic(const char *smb_name, const char *domain_name,
|
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const char *str)
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{
|
|
char *b, *p, *s, *r, *a_string;
|
|
fstring pidstr, vnnstr;
|
|
char addr[INET6_ADDRSTRLEN];
|
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const char *local_machine_name = get_local_machine_name();
|
|
TALLOC_CTX *tmp_ctx = NULL;
|
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|
|
/* workaround to prevent a crash while looking at bug #687 */
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|
|
if (!str) {
|
|
DEBUG(0,("alloc_sub_basic: NULL source string! This should not happen\n"));
|
|
return NULL;
|
|
}
|
|
|
|
a_string = SMB_STRDUP(str);
|
|
if (a_string == NULL) {
|
|
DEBUG(0, ("alloc_sub_basic: Out of memory!\n"));
|
|
return NULL;
|
|
}
|
|
|
|
tmp_ctx = talloc_stackframe();
|
|
|
|
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
|
|
|
|
r = NULL;
|
|
b = a_string;
|
|
|
|
switch (*(p+1)) {
|
|
case 'U' :
|
|
r = strdup_lower(smb_name);
|
|
if (r == NULL) {
|
|
goto error;
|
|
}
|
|
a_string = realloc_string_sub(a_string, "%U", r);
|
|
break;
|
|
case 'G' : {
|
|
struct passwd *pass;
|
|
r = SMB_STRDUP(smb_name);
|
|
if (r == NULL) {
|
|
goto error;
|
|
}
|
|
pass = Get_Pwnam_alloc(tmp_ctx, r);
|
|
if (pass != NULL) {
|
|
a_string = realloc_string_sub(
|
|
a_string, "%G",
|
|
gidtoname(pass->pw_gid));
|
|
}
|
|
TALLOC_FREE(pass);
|
|
break;
|
|
}
|
|
case 'D' :
|
|
r = strdup_upper(domain_name);
|
|
if (r == NULL) {
|
|
goto error;
|
|
}
|
|
a_string = realloc_string_sub(a_string, "%D", r);
|
|
break;
|
|
case 'I' : {
|
|
int offset = 0;
|
|
client_addr(get_client_fd(), addr, sizeof(addr));
|
|
if (strnequal(addr,"::ffff:",7)) {
|
|
offset = 7;
|
|
}
|
|
a_string = realloc_string_sub(a_string, "%I",
|
|
addr + offset);
|
|
break;
|
|
}
|
|
case 'i':
|
|
a_string = realloc_string_sub( a_string, "%i",
|
|
client_socket_addr(get_client_fd(), addr, sizeof(addr)) );
|
|
break;
|
|
case 'L' :
|
|
if ( StrnCaseCmp(p, "%LOGONSERVER%", strlen("%LOGONSERVER%")) == 0 ) {
|
|
break;
|
|
}
|
|
if (local_machine_name && *local_machine_name) {
|
|
a_string = realloc_string_sub(a_string, "%L", local_machine_name);
|
|
} else {
|
|
a_string = realloc_string_sub(a_string, "%L", global_myname());
|
|
}
|
|
break;
|
|
case 'N':
|
|
a_string = realloc_string_sub(a_string, "%N", automount_server(smb_name));
|
|
break;
|
|
case 'M' :
|
|
a_string = realloc_string_sub(a_string, "%M", client_name(get_client_fd()));
|
|
break;
|
|
case 'R' :
|
|
a_string = realloc_string_sub(a_string, "%R", remote_proto);
|
|
break;
|
|
case 'T' :
|
|
a_string = realloc_string_sub(a_string, "%T", current_timestring(tmp_ctx, False));
|
|
break;
|
|
case 'a' :
|
|
a_string = realloc_string_sub(a_string, "%a",
|
|
get_remote_arch_str());
|
|
break;
|
|
case 'd' :
|
|
slprintf(pidstr,sizeof(pidstr)-1, "%d",(int)sys_getpid());
|
|
a_string = realloc_string_sub(a_string, "%d", pidstr);
|
|
break;
|
|
case 'h' :
|
|
a_string = realloc_string_sub(a_string, "%h", myhostname());
|
|
break;
|
|
case 'm' :
|
|
a_string = realloc_string_sub(a_string, "%m",
|
|
remote_machine
|
|
? remote_machine
|
|
: "");
|
|
break;
|
|
case 'v' :
|
|
a_string = realloc_string_sub(a_string, "%v", SAMBA_VERSION_STRING);
|
|
break;
|
|
case 'w' :
|
|
a_string = realloc_string_sub(a_string, "%w", lp_winbind_separator());
|
|
break;
|
|
case '$' :
|
|
a_string = realloc_expand_env_var(a_string, p); /* Expand environment variables */
|
|
break;
|
|
case '(':
|
|
a_string = realloc_expand_longvar( a_string, p );
|
|
break;
|
|
case 'V' :
|
|
slprintf(vnnstr,sizeof(vnnstr)-1, "%u", get_my_vnn());
|
|
a_string = realloc_string_sub(a_string, "%V", vnnstr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
p++;
|
|
SAFE_FREE(r);
|
|
|
|
if (a_string == NULL) {
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
goto done;
|
|
|
|
error:
|
|
SAFE_FREE(a_string);
|
|
|
|
done:
|
|
TALLOC_FREE(tmp_ctx);
|
|
return a_string;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Do some specific substitutions in a string.
|
|
This function will return an allocated string that have to be freed.
|
|
****************************************************************************/
|
|
|
|
char *talloc_sub_specified(TALLOC_CTX *mem_ctx,
|
|
const char *input_string,
|
|
const char *username,
|
|
const char *domain,
|
|
uid_t uid,
|
|
gid_t gid)
|
|
{
|
|
char *a_string;
|
|
char *ret_string = NULL;
|
|
char *b, *p, *s;
|
|
TALLOC_CTX *tmp_ctx;
|
|
|
|
if (!(tmp_ctx = talloc_new(mem_ctx))) {
|
|
DEBUG(0, ("talloc_new failed\n"));
|
|
return NULL;
|
|
}
|
|
|
|
a_string = talloc_strdup(tmp_ctx, input_string);
|
|
if (a_string == NULL) {
|
|
DEBUG(0, ("talloc_sub_specified: Out of memory!\n"));
|
|
goto done;
|
|
}
|
|
|
|
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
|
|
|
|
b = a_string;
|
|
|
|
switch (*(p+1)) {
|
|
case 'U' :
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%U", username);
|
|
break;
|
|
case 'u' :
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%u", username);
|
|
break;
|
|
case 'G' :
|
|
if (gid != -1) {
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%G",
|
|
gidtoname(gid));
|
|
} else {
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string,
|
|
"%G", "NO_GROUP");
|
|
}
|
|
break;
|
|
case 'g' :
|
|
if (gid != -1) {
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%g",
|
|
gidtoname(gid));
|
|
} else {
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%g", "NO_GROUP");
|
|
}
|
|
break;
|
|
case 'D' :
|
|
a_string = talloc_string_sub(tmp_ctx, a_string,
|
|
"%D", domain);
|
|
break;
|
|
case 'N' :
|
|
a_string = talloc_string_sub(
|
|
tmp_ctx, a_string, "%N",
|
|
automount_server(username));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
p++;
|
|
if (a_string == NULL) {
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Watch out, using "mem_ctx" here, so all intermediate stuff goes
|
|
* away with the TALLOC_FREE(tmp_ctx) further down. */
|
|
|
|
ret_string = talloc_sub_basic(mem_ctx, username, domain, a_string);
|
|
|
|
done:
|
|
TALLOC_FREE(tmp_ctx);
|
|
return ret_string;
|
|
}
|
|
|
|
/****************************************************************************
|
|
****************************************************************************/
|
|
|
|
static char *alloc_sub_advanced(const char *servicename, const char *user,
|
|
const char *connectpath, gid_t gid,
|
|
const char *smb_name, const char *domain_name,
|
|
const char *str)
|
|
{
|
|
char *a_string, *ret_string;
|
|
char *b, *p, *s;
|
|
|
|
a_string = SMB_STRDUP(str);
|
|
if (a_string == NULL) {
|
|
DEBUG(0, ("alloc_sub_advanced: Out of memory!\n"));
|
|
return NULL;
|
|
}
|
|
|
|
for (b = s = a_string; (p = strchr_m(s, '%')); s = a_string + (p - b)) {
|
|
|
|
b = a_string;
|
|
|
|
switch (*(p+1)) {
|
|
case 'N' :
|
|
a_string = realloc_string_sub(a_string, "%N", automount_server(user));
|
|
break;
|
|
case 'H': {
|
|
char *h;
|
|
if ((h = get_user_home_dir(talloc_tos(), user)))
|
|
a_string = realloc_string_sub(a_string, "%H", h);
|
|
TALLOC_FREE(h);
|
|
break;
|
|
}
|
|
case 'P':
|
|
a_string = realloc_string_sub(a_string, "%P", connectpath);
|
|
break;
|
|
case 'S':
|
|
a_string = realloc_string_sub(a_string, "%S", servicename);
|
|
break;
|
|
case 'g':
|
|
a_string = realloc_string_sub(a_string, "%g", gidtoname(gid));
|
|
break;
|
|
case 'u':
|
|
a_string = realloc_string_sub(a_string, "%u", user);
|
|
break;
|
|
|
|
/* Patch from jkf@soton.ac.uk Left the %N (NIS
|
|
* server name) in standard_sub_basic as it is
|
|
* a feature for logon servers, hence uses the
|
|
* username. The %p (NIS server path) code is
|
|
* here as it is used instead of the default
|
|
* "path =" string in [homes] and so needs the
|
|
* service name, not the username. */
|
|
case 'p':
|
|
a_string = realloc_string_sub(a_string, "%p",
|
|
automount_path(servicename));
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
p++;
|
|
if (a_string == NULL) {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
ret_string = alloc_sub_basic(smb_name, domain_name, a_string);
|
|
SAFE_FREE(a_string);
|
|
return ret_string;
|
|
}
|
|
|
|
/*
|
|
* This obviously is inefficient and needs to be merged into
|
|
* alloc_sub_advanced...
|
|
*/
|
|
|
|
char *talloc_sub_advanced(TALLOC_CTX *mem_ctx,
|
|
const char *servicename, const char *user,
|
|
const char *connectpath, gid_t gid,
|
|
const char *smb_name, const char *domain_name,
|
|
const char *str)
|
|
{
|
|
char *a, *t;
|
|
|
|
if (!(a = alloc_sub_advanced(servicename, user, connectpath, gid,
|
|
smb_name, domain_name, str))) {
|
|
return NULL;
|
|
}
|
|
t = talloc_strdup(mem_ctx, a);
|
|
SAFE_FREE(a);
|
|
return t;
|
|
}
|
|
|
|
|
|
void standard_sub_advanced(const char *servicename, const char *user,
|
|
const char *connectpath, gid_t gid,
|
|
const char *smb_name, const char *domain_name,
|
|
char *str, size_t len)
|
|
{
|
|
char *s;
|
|
|
|
s = alloc_sub_advanced(servicename, user, connectpath,
|
|
gid, smb_name, domain_name, str);
|
|
|
|
if ( s ) {
|
|
strncpy( str, s, len );
|
|
SAFE_FREE( s );
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
Do some standard substitutions in a string.
|
|
****************************************************************************/
|
|
|
|
char *standard_sub_conn(TALLOC_CTX *ctx, connection_struct *conn, const char *str)
|
|
{
|
|
return talloc_sub_advanced(ctx,
|
|
lp_servicename(SNUM(conn)),
|
|
conn->server_info->unix_name,
|
|
conn->connectpath,
|
|
conn->server_info->utok.gid,
|
|
get_smb_user_name(),
|
|
"",
|
|
str);
|
|
}
|