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