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https://github.com/samba-team/samba.git
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c5572072e5
(This used to be commit a64bc31098
)
248 lines
5.9 KiB
C
248 lines
5.9 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB messaging
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Copyright (C) Andrew Tridgell 1992-1998
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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 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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/*
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This file handles the messaging system calls for winpopup style
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messages
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*/
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#include "includes.h"
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extern userdom_struct current_user_info;
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/* look in server.c for some explanation of these variables */
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static char msgbuf[1600];
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static int msgpos;
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static fstring msgfrom;
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static fstring msgto;
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/****************************************************************************
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Deliver the message.
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****************************************************************************/
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static void msg_deliver(void)
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{
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pstring name;
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int i;
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int fd;
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char *msg;
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int len;
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ssize_t sz;
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if (! (*lp_msg_command())) {
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DEBUG(1,("no messaging command specified\n"));
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msgpos = 0;
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return;
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}
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/* put it in a temporary file */
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slprintf(name,sizeof(name)-1, "%s/msg.XXXXXX",tmpdir());
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fd = smb_mkstemp(name);
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if (fd == -1) {
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DEBUG(1,("can't open message file %s\n",name));
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return;
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}
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/*
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* Incoming message is in DOS codepage format. Convert to UNIX.
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*/
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if ((len = (int)convert_string_allocate(NULL,CH_DOS, CH_UNIX, msgbuf, msgpos, (void **)(void *)&msg, True)) < 0 || !msg) {
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DEBUG(3,("Conversion failed, delivering message in DOS codepage format\n"));
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for (i = 0; i < msgpos;) {
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if (msgbuf[i] == '\r' && i < (msgpos-1) && msgbuf[i+1] == '\n') {
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i++;
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continue;
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}
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sz = write(fd, &msgbuf[i++], 1);
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if ( sz != 1 ) {
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DEBUG(0,("Write error to fd %d: %ld(%d)\n",fd, (long)sz, errno ));
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}
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}
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} else {
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for (i = 0; i < len;) {
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if (msg[i] == '\r' && i < (len-1) && msg[i+1] == '\n') {
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i++;
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continue;
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}
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sz = write(fd, &msg[i++],1);
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if ( sz != 1 ) {
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DEBUG(0,("Write error to fd %d: %ld(%d)\n",fd, (long)sz, errno ));
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}
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}
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SAFE_FREE(msg);
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}
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close(fd);
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/* run the command */
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if (*lp_msg_command()) {
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fstring alpha_msgfrom;
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fstring alpha_msgto;
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pstring s;
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pstrcpy(s,lp_msg_command());
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pstring_sub(s,"%f",alpha_strcpy(alpha_msgfrom,msgfrom,NULL,sizeof(alpha_msgfrom)));
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pstring_sub(s,"%t",alpha_strcpy(alpha_msgto,msgto,NULL,sizeof(alpha_msgto)));
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standard_sub_basic(current_user_info.smb_name,
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current_user_info.domain, s, sizeof(s));
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pstring_sub(s,"%s",name);
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smbrun(s,NULL);
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}
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msgpos = 0;
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}
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/****************************************************************************
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Reply to a sends.
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conn POINTER CAN BE NULL HERE !
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****************************************************************************/
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void reply_sends(connection_struct *conn, struct smb_request *req)
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{
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int len;
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char *msg;
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char *p;
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START_PROFILE(SMBsends);
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msgpos = 0;
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if (! (*lp_msg_command())) {
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reply_doserror(req, ERRSRV, ERRmsgoff);
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END_PROFILE(SMBsends);
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return;
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}
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p = smb_buf(req->inbuf)+1;
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p += srvstr_pull_buf((char *)req->inbuf, req->flags2, msgfrom, p,
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sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
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p += srvstr_pull_buf((char *)req->inbuf, req->flags2, msgto, p,
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sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
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msg = p;
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len = SVAL(msg,0);
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len = MIN(len,sizeof(msgbuf)-msgpos);
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memset(msgbuf,'\0',sizeof(msgbuf));
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memcpy(&msgbuf[msgpos],msg+2,len);
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msgpos += len;
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msg_deliver();
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reply_outbuf(req, 0, 0);
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END_PROFILE(SMBsends);
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return;
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}
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/****************************************************************************
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Reply to a sendstrt.
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conn POINTER CAN BE NULL HERE !
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****************************************************************************/
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void reply_sendstrt(connection_struct *conn, struct smb_request *req)
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{
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char *p;
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START_PROFILE(SMBsendstrt);
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if (! (*lp_msg_command())) {
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reply_doserror(req, ERRSRV, ERRmsgoff);
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END_PROFILE(SMBsendstrt);
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return;
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}
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memset(msgbuf,'\0',sizeof(msgbuf));
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msgpos = 0;
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p = smb_buf(req->inbuf)+1;
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p += srvstr_pull_buf((char *)req->inbuf, req->flags2, msgfrom, p,
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sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
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p += srvstr_pull_buf((char *)req->inbuf, req->flags2, msgto, p,
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sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
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DEBUG( 3, ( "SMBsendstrt (from %s to %s)\n", msgfrom, msgto ) );
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reply_outbuf(req, 0, 0);
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END_PROFILE(SMBsendstrt);
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return;
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}
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/****************************************************************************
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Reply to a sendtxt.
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conn POINTER CAN BE NULL HERE !
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****************************************************************************/
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void reply_sendtxt(connection_struct *conn, struct smb_request *req)
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{
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int len;
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char *msg;
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START_PROFILE(SMBsendtxt);
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if (! (*lp_msg_command())) {
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reply_doserror(req, ERRSRV, ERRmsgoff);
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END_PROFILE(SMBsendtxt);
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return;
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}
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msg = smb_buf(req->inbuf) + 1;
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len = SVAL(msg,0);
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len = MIN(len,sizeof(msgbuf)-msgpos);
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memcpy(&msgbuf[msgpos],msg+2,len);
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msgpos += len;
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DEBUG( 3, ( "SMBsendtxt\n" ) );
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reply_outbuf(req, 0, 0);
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END_PROFILE(SMBsendtxt);
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return;
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}
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/****************************************************************************
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Reply to a sendend.
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conn POINTER CAN BE NULL HERE !
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****************************************************************************/
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void reply_sendend(connection_struct *conn, struct smb_request *req)
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{
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START_PROFILE(SMBsendend);
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if (! (*lp_msg_command())) {
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reply_doserror(req, ERRSRV, ERRmsgoff);
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END_PROFILE(SMBsendend);
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return;
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}
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DEBUG(3,("SMBsendend\n"));
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msg_deliver();
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reply_outbuf(req, 0, 0);
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END_PROFILE(SMBsendend);
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return;
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}
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