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authorAndrew Tridgell <tridge@samba.org>1997-10-21 09:12:41 +0000
committerAndrew Tridgell <tridge@samba.org>1997-10-21 09:12:41 +0000
commit8adc95a55ab51597cce665705c2a866294b743ac (patch)
tree7da219fba6357d4b3577c81c6ab338d7a8f34cfe /source3/libsmb
parentac219021786268533540009b8d8598f87568338f (diff)
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This is a set of generic SMB client routines. I needed this in a hurry
to fix the password server code, so I didn't use SMBlib. This code is fairly generic and uses a "struct cli_state" to hold the client state. (This used to be commit 3a0b5f06f42efdb522f1c5d3d9a4b4afabe03b40)
Diffstat (limited to 'source3/libsmb')
-rw-r--r--source3/libsmb/clientgen.c673
1 files changed, 673 insertions, 0 deletions
diff --git a/source3/libsmb/clientgen.c b/source3/libsmb/clientgen.c
new file mode 100644
index 0000000000..d47c5a2755
--- /dev/null
+++ b/source3/libsmb/clientgen.c
@@ -0,0 +1,673 @@
+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ SMB client generic functions
+ Copyright (C) Andrew Tridgell 1994-1997
+
+ 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.
+*/
+
+#ifdef SYSLOG
+#undef SYSLOG
+#endif
+
+#include "includes.h"
+
+
+extern int DEBUGLEVEL;
+
+/****************************************************************************
+setup basics in a outgoing packet
+****************************************************************************/
+static void cli_setup_pkt(struct cli_state *cli)
+{
+ SSVAL(cli->outbuf,smb_pid,cli->pid);
+ SSVAL(cli->outbuf,smb_uid,cli->uid);
+ SSVAL(cli->outbuf,smb_mid,cli->mid);
+ if (cli->protocol > PROTOCOL_CORE) {
+ SCVAL(cli->outbuf,smb_flg,0x8);
+ SSVAL(cli->outbuf,smb_flg2,0x1);
+ }
+}
+
+
+/****************************************************************************
+ send a SMB trans or trans2 request
+ ****************************************************************************/
+static BOOL cli_send_trans(struct cli_state *cli,
+ int trans, char *name, int fid, int flags,
+ char *data,char *param,uint16 *setup, int ldata,int lparam,
+ int lsetup,int mdata,int mparam,int msetup)
+{
+ int i;
+ int this_ldata,this_lparam;
+ int tot_data=0,tot_param=0;
+ char *outdata,*outparam;
+ char *p;
+
+ this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*SIZEOFWORD)); /* hack */
+ this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*SIZEOFWORD+this_lparam));
+
+ bzero(cli->outbuf,smb_size);
+ set_message(cli->outbuf,14+lsetup,0,True);
+ CVAL(cli->outbuf,smb_com) = trans;
+ SSVAL(cli->outbuf,smb_tid, cli->cnum);
+ cli_setup_pkt(cli);
+
+ outparam = smb_buf(cli->outbuf)+(trans==SMBtrans ? strlen(name)+1 : 3);
+ outdata = outparam+this_lparam;
+
+ /* primary request */
+ SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
+ SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
+ SSVAL(cli->outbuf,smb_mprcnt,mparam); /* mprcnt */
+ SSVAL(cli->outbuf,smb_mdrcnt,mdata); /* mdrcnt */
+ SCVAL(cli->outbuf,smb_msrcnt,msetup); /* msrcnt */
+ SSVAL(cli->outbuf,smb_flags,flags); /* flags */
+ SIVAL(cli->outbuf,smb_timeout,0); /* timeout */
+ SSVAL(cli->outbuf,smb_pscnt,this_lparam); /* pscnt */
+ SSVAL(cli->outbuf,smb_psoff,smb_offset(outparam,cli->outbuf)); /* psoff */
+ SSVAL(cli->outbuf,smb_dscnt,this_ldata); /* dscnt */
+ SSVAL(cli->outbuf,smb_dsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
+ SCVAL(cli->outbuf,smb_suwcnt,lsetup); /* suwcnt */
+ for (i=0;i<lsetup;i++) /* setup[] */
+ SSVAL(cli->outbuf,smb_setup+i*SIZEOFWORD,setup[i]);
+ p = smb_buf(cli->outbuf);
+ if (trans==SMBtrans) {
+ strcpy(p,name); /* name[] */
+ } else {
+ *p++ = 0; /* put in a null smb_name */
+ *p++ = 'D'; *p++ = ' '; /* observed in OS/2 */
+ }
+ if (this_lparam) /* param[] */
+ memcpy(outparam,param,this_lparam);
+ if (this_ldata) /* data[] */
+ memcpy(outdata,data,this_ldata);
+ set_message(cli->outbuf,14+lsetup, /* wcnt, bcc */
+ PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
+
+ show_msg(cli->outbuf);
+ send_smb(cli->fd,cli->outbuf);
+
+ if (this_ldata < ldata || this_lparam < lparam) {
+ /* receive interim response */
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout) ||
+ CVAL(cli->inbuf,smb_rcls) != 0) {
+ return(False);
+ }
+
+ tot_data = this_ldata;
+ tot_param = this_lparam;
+
+ while (tot_data < ldata || tot_param < lparam) {
+ this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
+ this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
+
+ set_message(cli->outbuf,trans==SMBtrans?8:9,0,True);
+ CVAL(cli->outbuf,smb_com) = trans==SMBtrans ? SMBtranss : SMBtranss2;
+
+ outparam = smb_buf(cli->outbuf);
+ outdata = outparam+this_lparam;
+
+ /* secondary request */
+ SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
+ SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
+ SSVAL(cli->outbuf,smb_spscnt,this_lparam); /* pscnt */
+ SSVAL(cli->outbuf,smb_spsoff,smb_offset(outparam,cli->outbuf)); /* psoff */
+ SSVAL(cli->outbuf,smb_spsdisp,tot_param); /* psdisp */
+ SSVAL(cli->outbuf,smb_sdscnt,this_ldata); /* dscnt */
+ SSVAL(cli->outbuf,smb_sdsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
+ SSVAL(cli->outbuf,smb_sdsdisp,tot_data); /* dsdisp */
+ if (trans==SMBtrans2)
+ SSVAL(cli->outbuf,smb_sfid,fid); /* fid */
+ if (this_lparam) /* param[] */
+ memcpy(outparam,param,this_lparam);
+ if (this_ldata) /* data[] */
+ memcpy(outdata,data,this_ldata);
+ set_message(cli->outbuf,trans==SMBtrans?8:9, /* wcnt, bcc */
+ PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
+
+ show_msg(cli->outbuf);
+ send_smb(cli->fd,cli->outbuf);
+
+ tot_data += this_ldata;
+ tot_param += this_lparam;
+ }
+ }
+
+ return(True);
+}
+
+
+/****************************************************************************
+ receive a SMB trans or trans2 response allocating the necessary memory
+ ****************************************************************************/
+static BOOL cli_receive_trans(struct cli_state *cli,
+ int trans,int *data_len,
+ int *param_len, char **data,char **param)
+{
+ int total_data=0;
+ int total_param=0;
+ int this_data,this_param;
+
+ *data_len = *param_len = 0;
+
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ /* sanity check */
+ if (CVAL(cli->inbuf,smb_com) != trans) {
+ DEBUG(0,("Expected %s response, got command 0x%02x\n",
+ trans==SMBtrans?"SMBtrans":"SMBtrans2",
+ CVAL(cli->inbuf,smb_com)));
+ return(False);
+ }
+ if (CVAL(cli->inbuf,smb_rcls) != 0)
+ return(False);
+
+ /* parse out the lengths */
+ total_data = SVAL(cli->inbuf,smb_tdrcnt);
+ total_param = SVAL(cli->inbuf,smb_tprcnt);
+
+ /* allocate it */
+ *data = Realloc(*data,total_data);
+ *param = Realloc(*param,total_param);
+
+ while (1) {
+ this_data = SVAL(cli->inbuf,smb_drcnt);
+ this_param = SVAL(cli->inbuf,smb_prcnt);
+
+ if (this_data + *data_len > total_data ||
+ this_param + *param_len > total_param) {
+ DEBUG(1,("Data overflow in cli_receive_trans\n"));
+ return False;
+ }
+
+ if (this_data)
+ memcpy(*data + SVAL(cli->inbuf,smb_drdisp),
+ smb_base(cli->inbuf) + SVAL(cli->inbuf,smb_droff),
+ this_data);
+ if (this_param)
+ memcpy(*param + SVAL(cli->inbuf,smb_prdisp),
+ smb_base(cli->inbuf) + SVAL(cli->inbuf,smb_proff),
+ this_param);
+ *data_len += this_data;
+ *param_len += this_param;
+
+ /* parse out the total lengths again - they can shrink! */
+ total_data = SVAL(cli->inbuf,smb_tdrcnt);
+ total_param = SVAL(cli->inbuf,smb_tprcnt);
+
+ if (total_data <= *data_len && total_param <= *param_len)
+ break;
+
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ /* sanity check */
+ if (CVAL(cli->inbuf,smb_com) != trans) {
+ DEBUG(0,("Expected %s response, got command 0x%02x\n",
+ trans==SMBtrans?"SMBtrans":"SMBtrans2",
+ CVAL(cli->inbuf,smb_com)));
+ return(False);
+ }
+ if (CVAL(cli->inbuf,smb_rcls) != 0)
+ return(False);
+ }
+
+ return(True);
+}
+
+
+/****************************************************************************
+call a remote api
+****************************************************************************/
+static BOOL cli_api(struct cli_state *cli,
+ int prcnt,int drcnt,int mprcnt,int mdrcnt,int *rprcnt,
+ int *rdrcnt, char *param,char *data,
+ char **rparam, char **rdata)
+{
+ cli_send_trans(cli,SMBtrans,"\\PIPE\\LANMAN",0,0,
+ data,param,NULL,
+ drcnt,prcnt,0,
+ mdrcnt,mprcnt,0);
+
+ return (cli_receive_trans(cli,SMBtrans,
+ rdrcnt,rprcnt,
+ rdata,rparam));
+}
+
+
+/****************************************************************************
+perform a NetWkstaUserLogon
+****************************************************************************/
+BOOL cli_NetWkstaUserLogon(struct cli_state *cli,char *user, char *workstation)
+{
+ char *rparam = NULL;
+ char *rdata = NULL;
+ char *p;
+ int rdrcnt,rprcnt;
+ pstring param;
+
+ memset(param, 0, sizeof(param));
+
+ /* send a SMBtrans command with api NetWkstaUserLogon */
+ p = param;
+ SSVAL(p,0,132); /* api number */
+ p += 2;
+ strcpy(p,"OOWb54WrLh");
+ p = skip_string(p,1);
+ strcpy(p,"WB21BWDWWDDDDDDDzzzD");
+ p = skip_string(p,1);
+ SSVAL(p,0,1);
+ p += 2;
+ strcpy(p,user);
+ strupper(p);
+ p += 21; p++; p += 15; p++;
+ strcpy(p, workstation);
+ strupper(p);
+ p += 16;
+ SSVAL(p, 0, BUFFER_SIZE);
+ p += 2;
+ SSVAL(p, 0, BUFFER_SIZE);
+ p += 2;
+
+ cli->error = -1;
+
+ if (cli_api(cli, PTR_DIFF(p,param),0,
+ 1024,BUFFER_SIZE,
+ &rprcnt,&rdrcnt,
+ param,NULL,
+ &rparam,&rdata)) {
+ cli->error = SVAL(rparam,0);
+ p = rdata;
+
+ if (cli->error == 0) {
+ DEBUG(4,("NetWkstaUserLogon success\n"));
+ cli->privilages = SVAL(p, 24);
+ fstrcpy(cli->eff_name,p+2);
+ } else {
+ DEBUG(1,("NetwkstaUserLogon gave error %d\n", cli->error));
+ }
+ }
+
+ if (rparam) free(rparam);
+ if (rdata) free(rdata);
+ return cli->error == 0;
+}
+
+
+
+static struct {
+ int prot;
+ char *name;
+ }
+prots[] =
+ {
+ {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
+ {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
+ {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
+ {PROTOCOL_LANMAN1,"LANMAN1.0"},
+ {PROTOCOL_LANMAN2,"LM1.2X002"},
+ {PROTOCOL_LANMAN2,"Samba"},
+ {PROTOCOL_NT1,"NT LM 0.12"},
+ {PROTOCOL_NT1,"NT LANMAN 1.0"},
+ {-1,NULL}
+ };
+
+
+/****************************************************************************
+send a session setup
+****************************************************************************/
+BOOL cli_session_setup(struct cli_state *cli,
+ char *user,
+ char *pass, int passlen,
+ char *ntpass, int ntpasslen,
+ char *workgroup)
+{
+ char *p;
+ fstring pword;
+
+ if (cli->protocol < PROTOCOL_LANMAN1)
+ return False;
+
+ if (passlen > sizeof(pword)-1) {
+ return False;
+ }
+
+ if ((cli->sec_mode & 2) && *pass && passlen != 24) {
+ passlen = 24;
+ SMBencrypt((uchar *)pass,(uchar *)cli->cryptkey,(uchar *)pword);
+ } else {
+ memcpy(pword, pass, passlen);
+ }
+
+ /* if in share level security then don't send a password now */
+ if (!(cli->sec_mode & 1)) {fstrcpy(pword, "");passlen=1;}
+
+ /* send a session setup command */
+ bzero(cli->outbuf,smb_size);
+
+ if (cli->protocol < PROTOCOL_NT1) {
+ set_message(cli->outbuf,10,1 + strlen(user) + passlen,True);
+ CVAL(cli->outbuf,smb_com) = SMBsesssetupX;
+ cli_setup_pkt(cli);
+
+ CVAL(cli->outbuf,smb_vwv0) = 0xFF;
+ SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,1);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv7,passlen);
+ p = smb_buf(cli->outbuf);
+ memcpy(p,pword,passlen);
+ p += passlen;
+ strcpy(p,user);
+ strupper(p);
+ } else {
+ set_message(cli->outbuf,13,0,True);
+ CVAL(cli->outbuf,smb_com) = SMBsesssetupX;
+ cli_setup_pkt(cli);
+
+ CVAL(cli->outbuf,smb_vwv0) = 0xFF;
+ SSVAL(cli->outbuf,smb_vwv2,BUFFER_SIZE);
+ SSVAL(cli->outbuf,smb_vwv3,2);
+ SSVAL(cli->outbuf,smb_vwv4,cli->pid);
+ SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
+ SSVAL(cli->outbuf,smb_vwv7,passlen);
+ SSVAL(cli->outbuf,smb_vwv8,ntpasslen);
+ p = smb_buf(cli->outbuf);
+ memcpy(p,pword,passlen);
+ p += SVAL(cli->outbuf,smb_vwv7);
+ memcpy(p,ntpass,ntpasslen);
+ p += SVAL(cli->outbuf,smb_vwv8);
+ strcpy(p,user);
+ strupper(p);
+ p = skip_string(p,1);
+ strcpy(p,workgroup);
+ strupper(p);
+ p = skip_string(p,1);
+ strcpy(p,"Unix");p = skip_string(p,1);
+ strcpy(p,"Samba");p = skip_string(p,1);
+ set_message(cli->outbuf,13,PTR_DIFF(p,smb_buf(cli->outbuf)),False);
+ }
+
+ send_smb(cli->fd,cli->outbuf);
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (CVAL(cli->inbuf,smb_rcls) != 0) {
+ return False;
+ }
+
+ /* use the returned uid from now on */
+ cli->uid = SVAL(cli->inbuf,smb_uid);
+
+ return True;
+}
+
+
+/****************************************************************************
+send a tconX
+****************************************************************************/
+BOOL cli_send_tconX(struct cli_state *cli,
+ char *share, char *dev, char *pword, int passlen)
+{
+ char *p;
+ bzero(cli->outbuf,smb_size);
+ bzero(cli->inbuf,smb_size);
+
+ set_message(cli->outbuf,4,
+ 2 + strlen(share) + passlen + strlen(dev),True);
+ CVAL(cli->outbuf,smb_com) = SMBtconX;
+ cli_setup_pkt(cli);
+
+ SSVAL(cli->outbuf,smb_vwv0,0xFF);
+ SSVAL(cli->outbuf,smb_vwv3,passlen);
+
+ p = smb_buf(cli->outbuf);
+ memcpy(p,pword,passlen);
+ p += passlen;
+ strcpy(p,share);
+ p = skip_string(p,1);
+ strcpy(p,dev);
+
+ SCVAL(cli->inbuf,smb_rcls, 1);
+
+ send_smb(cli->fd,cli->outbuf);
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ if (CVAL(cli->inbuf,smb_rcls) != 0) {
+ return False;
+ }
+
+ cli->cnum = SVAL(cli->inbuf,smb_tid);
+ return True;
+}
+
+
+/****************************************************************************
+send a tree disconnect
+****************************************************************************/
+BOOL cli_tdis(struct cli_state *cli)
+{
+ bzero(cli->outbuf,smb_size);
+ set_message(cli->outbuf,0,0,True);
+ CVAL(cli->outbuf,smb_com) = SMBtdis;
+ SSVAL(cli->outbuf,smb_tid,cli->cnum);
+ cli_setup_pkt(cli);
+
+ send_smb(cli->fd,cli->outbuf);
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ return CVAL(cli->inbuf,smb_rcls) == 0;
+}
+
+
+/****************************************************************************
+send a negprot command
+****************************************************************************/
+BOOL cli_negprot(struct cli_state *cli)
+{
+ char *p;
+ int numprots;
+ int plength;
+
+ bzero(cli->outbuf,smb_size);
+
+ /* setup the protocol strings */
+ for (plength=0,numprots=0;
+ prots[numprots].name && prots[numprots].prot<=cli->protocol;
+ numprots++)
+ plength += strlen(prots[numprots].name)+2;
+
+ set_message(cli->outbuf,0,plength,True);
+
+ p = smb_buf(cli->outbuf);
+ for (numprots=0;
+ prots[numprots].name && prots[numprots].prot<=cli->protocol;
+ numprots++) {
+ *p++ = 2;
+ strcpy(p,prots[numprots].name);
+ p += strlen(p) + 1;
+ }
+
+ CVAL(cli->outbuf,smb_com) = SMBnegprot;
+ cli_setup_pkt(cli);
+
+ CVAL(smb_buf(cli->outbuf),0) = 2;
+
+ send_smb(cli->fd,cli->outbuf);
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ show_msg(cli->inbuf);
+
+ if (CVAL(cli->inbuf,smb_rcls) != 0 ||
+ ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
+ return(False);
+ }
+
+ cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot;
+
+
+ if (cli->protocol < PROTOCOL_NT1) {
+ cli->sec_mode = SVAL(cli->inbuf,smb_vwv1);
+ cli->max_xmit = SVAL(cli->inbuf,smb_vwv2);
+ cli->sesskey = IVAL(cli->inbuf,smb_vwv6);
+ cli->serverzone = SVALS(cli->inbuf,smb_vwv10)*60;
+ /* this time is converted to GMT by make_unix_date */
+ cli->servertime = make_unix_date(cli->inbuf+smb_vwv8);
+ if (cli->protocol >= PROTOCOL_COREPLUS) {
+ cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0);
+ cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0);
+ }
+ memcpy(cli->cryptkey,smb_buf(cli->inbuf),8);
+ } else {
+ /* NT protocol */
+ cli->sec_mode = CVAL(cli->inbuf,smb_vwv1);
+ cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1);
+ cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1);
+ cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1)*60;
+ /* this time arrives in real GMT */
+ cli->servertime = interpret_long_date(cli->inbuf+smb_vwv11+1);
+ memcpy(cli->cryptkey,smb_buf(cli->inbuf),8);
+ if (IVAL(cli->inbuf,smb_vwv9+1) & 1)
+ cli->readbraw_supported =
+ cli->writebraw_supported = True;
+ }
+
+ return True;
+}
+
+
+/****************************************************************************
+ send a session request
+****************************************************************************/
+BOOL cli_session_request(struct cli_state *cli, char *host, int name_type,
+ char *myname)
+{
+ fstring dest;
+ char *p;
+ int len = 4;
+ /* send a session request (RFC 1002) */
+
+ fstrcpy(dest,host);
+
+ p = strchr(dest,'.');
+ if (p) *p = 0;
+
+ fstrcpy(cli->desthost, dest);
+
+ /* put in the destination name */
+ p = cli->outbuf+len;
+ name_mangle(dest,p,name_type);
+ len += name_len(p);
+
+ /* and my name */
+ p = cli->outbuf+len;
+ name_mangle(myname,p,0);
+ len += name_len(p);
+
+ /* setup the packet length */
+ _smb_setlen(cli->outbuf,len);
+ CVAL(cli->outbuf,0) = 0x81;
+
+ send_smb(cli->fd,cli->outbuf);
+ DEBUG(5,("Sent session request\n"));
+
+ if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
+ return False;
+
+ if (CVAL(cli->inbuf,0) != 0x82) {
+ cli->error = CVAL(cli->inbuf,0);
+ return False;
+ }
+ return(True);
+}
+
+
+/****************************************************************************
+open the client sockets
+****************************************************************************/
+BOOL cli_connect(struct cli_state *cli, char *host, struct in_addr *ip)
+{
+ struct in_addr dest_ip;
+
+ fstrcpy(cli->desthost, host);
+
+ if (!ip) {
+ struct hostent *hp;
+
+ if ((hp = Get_Hostbyname(cli->desthost)) == 0) {
+ return False;
+ }
+
+ putip((char *)&dest_ip,(char *)hp->h_addr);
+ } else {
+ dest_ip = *ip;
+ }
+
+
+ cli->fd = open_socket_out(SOCK_STREAM, &dest_ip, 139, cli->timeout);
+ if (cli->fd == -1)
+ return False;
+
+ return True;
+}
+
+
+/****************************************************************************
+initialise a client structure
+****************************************************************************/
+BOOL cli_initialise(struct cli_state *cli)
+{
+ if (cli->initialised) cli_shutdown(cli);
+
+ memset(cli, 0, sizeof(*cli));
+ cli->fd = -1;
+ cli->cnum = -1;
+ cli->pid = getpid();
+ cli->mid = 1;
+ cli->uid = getuid();
+ cli->protocol = PROTOCOL_NT1;
+ cli->timeout = 20000;
+ cli->bufsize = 0x10000;
+ cli->max_xmit = cli->bufsize - 4;
+ cli->outbuf = (char *)malloc(cli->bufsize);
+ cli->inbuf = (char *)malloc(cli->bufsize);
+ if (!cli->outbuf || !cli->inbuf) return False;
+ cli->initialised = 1;
+ return True;
+}
+
+/****************************************************************************
+shutdown a client structure
+****************************************************************************/
+void cli_shutdown(struct cli_state *cli)
+{
+ if (cli->outbuf) free(cli->outbuf);
+ if (cli->inbuf) free(cli->inbuf);
+ if (cli->fd != -1) close(cli->fd);
+ memset(cli, 0, sizeof(*cli));
+}