/* Unix SMB/CIFS implementation. client message handling routines Copyright (C) Andrew Tridgell 1994-1998 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "includes.h" /**************************************************************************** Start a message sequence. ****************************************************************************/ int cli_message_start_build(struct cli_state *cli, const char *host, const char *username) { char *p; /* construct a SMBsendstrt command */ memset(cli->outbuf,'\0',smb_size); cli_set_message(cli->outbuf,0,0,True); SCVAL(cli->outbuf,smb_com,SMBsendstrt); SSVAL(cli->outbuf,smb_tid,cli->cnum); cli_setup_packet(cli); p = smb_buf(cli->outbuf); *p++ = 4; p += clistr_push(cli, p, username, cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE); *p++ = 4; p += clistr_push(cli, p, host, cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE); cli_setup_bcc(cli, p); return(PTR_DIFF(p, cli->outbuf)); } bool cli_message_start(struct cli_state *cli, const char *host, const char *username, int *grp) { cli_message_start_build(cli, host, username); cli_send_smb(cli); if (!cli_receive_smb(cli)) { return False; } if (cli_is_error(cli)) return False; *grp = SVAL(cli->inbuf,smb_vwv0); return True; } /**************************************************************************** Send a message ****************************************************************************/ int cli_message_text_build(struct cli_state *cli, const char *msg, int len, int grp) { char *msgdos; size_t lendos; char *p; memset(cli->outbuf,'\0',smb_size); cli_set_message(cli->outbuf,1,0,True); SCVAL(cli->outbuf,smb_com,SMBsendtxt); SSVAL(cli->outbuf,smb_tid,cli->cnum); cli_setup_packet(cli); SSVAL(cli->outbuf,smb_vwv0,grp); p = smb_buf(cli->outbuf); *p++ = 1; if (!convert_string_allocate(NULL, CH_UNIX, CH_DOS, msg, len, (void **)(void *)&msgdos, &lendos, True) || !msgdos) { DEBUG(3,("Conversion failed, sending message in UNIX charset\n")); SSVAL(p, 0, len); p += 2; if (len > cli->bufsize - PTR_DIFF(p,cli->outbuf)) { return -1; } memcpy(p, msg, len); p += len; } else { SSVAL(p, 0, lendos); p += 2; if (lendos > cli->bufsize - PTR_DIFF(p,cli->outbuf)) { return -1; } memcpy(p, msgdos, lendos); p += lendos; SAFE_FREE(msgdos); } cli_setup_bcc(cli, p); return(PTR_DIFF(p, cli->outbuf)); } bool cli_message_text(struct cli_state *cli, const char *msg, int len, int grp) { cli_message_text_build(cli, msg, len, grp); cli_send_smb(cli); if (!cli_receive_smb(cli)) { return False; } if (cli_is_error(cli)) return False; return True; } /**************************************************************************** End a message. ****************************************************************************/ int cli_message_end_build(struct cli_state *cli, int grp) { char *p; memset(cli->outbuf,'\0',smb_size); cli_set_message(cli->outbuf,1,0,True); SCVAL(cli->outbuf,smb_com,SMBsendend); SSVAL(cli->outbuf,smb_tid,cli->cnum); SSVAL(cli->outbuf,smb_vwv0,grp); cli_setup_packet(cli); p = smb_buf(cli->outbuf); return(PTR_DIFF(p, cli->outbuf)); } bool cli_message_end(struct cli_state *cli, int grp) { cli_message_end_build(cli, grp); cli_send_smb(cli); if (!cli_receive_smb(cli)) { return False; } if (cli_is_error(cli)) return False; return True; }