source3/libsmb/clientgen.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    SMB client generic functions
   5    Copyright (C) Andrew Tridgell 1994-1997
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #ifdef SYSLOG
  23 #undef SYSLOG
  24 #endif
  25
  26 #include "includes.h"
  27 #include "trans2.h"
  28
  29
  30 extern int DEBUGLEVEL;
  31
  32 /****************************************************************************
  33 setup basics in a outgoing packet
  34 ****************************************************************************/
  35 static void cli_setup_packet(struct cli_state *cli)
  36 {
  37         SSVAL(cli->outbuf,smb_pid,cli->pid);
  38         SSVAL(cli->outbuf,smb_uid,cli->uid);
  39         SSVAL(cli->outbuf,smb_mid,cli->mid);
  40         if (cli->protocol > PROTOCOL_CORE) {
  41                 SCVAL(cli->outbuf,smb_flg,0x8);
  42                 SSVAL(cli->outbuf,smb_flg2,0x1);
  43         }
  44 }
  45
  46
  47 /****************************************************************************
  48   send a SMB trans or trans2 request
  49   ****************************************************************************/
  50 static BOOL cli_send_trans(struct cli_state *cli,
  51                            int trans, char *name, int fid, int flags,
  52                            char *data,char *param,uint16 *setup, int ldata,int lparam,
  53                            int lsetup,int mdata,int mparam,int msetup)
  54 {
  55         int i;
  56         int this_ldata,this_lparam;
  57         int tot_data=0,tot_param=0;
  58         char *outdata,*outparam;
  59         char *p;
  60
  61         this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*2)); /* hack */
  62         this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*2+this_lparam));
  63
  64         bzero(cli->outbuf,smb_size);
  65         set_message(cli->outbuf,14+lsetup,0,True);
  66         CVAL(cli->outbuf,smb_com) = trans;
  67         SSVAL(cli->outbuf,smb_tid, cli->cnum);
  68         cli_setup_packet(cli);
  69
  70         outparam = smb_buf(cli->outbuf)+(trans==SMBtrans ? strlen(name)+1 : 3);
  71         outdata = outparam+this_lparam;
  72
  73         /* primary request */
  74         SSVAL(cli->outbuf,smb_tpscnt,lparam);   /* tpscnt */
  75         SSVAL(cli->outbuf,smb_tdscnt,ldata);    /* tdscnt */
  76         SSVAL(cli->outbuf,smb_mprcnt,mparam);   /* mprcnt */
  77         SSVAL(cli->outbuf,smb_mdrcnt,mdata);    /* mdrcnt */
  78         SCVAL(cli->outbuf,smb_msrcnt,msetup);   /* msrcnt */
  79         SSVAL(cli->outbuf,smb_flags,flags);     /* flags */
  80         SIVAL(cli->outbuf,smb_timeout,0);               /* timeout */
  81         SSVAL(cli->outbuf,smb_pscnt,this_lparam);       /* pscnt */
  82         SSVAL(cli->outbuf,smb_psoff,smb_offset(outparam,cli->outbuf)); /* psoff */
  83         SSVAL(cli->outbuf,smb_dscnt,this_ldata);        /* dscnt */
  84         SSVAL(cli->outbuf,smb_dsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
  85         SCVAL(cli->outbuf,smb_suwcnt,lsetup);   /* suwcnt */
  86         for (i=0;i<lsetup;i++)          /* setup[] */
  87                 SSVAL(cli->outbuf,smb_setup+i*2,setup[i]);
  88         p = smb_buf(cli->outbuf);
  89         if (trans==SMBtrans) {
  90                 strcpy(p,name);                 /* name[] */
  91         } else {
  92                 *p++ = 0;  /* put in a null smb_name */
  93                 *p++ = 'D'; *p++ = ' '; /* observed in OS/2 */
  94         }
  95         if (this_lparam)                        /* param[] */
  96                 memcpy(outparam,param,this_lparam);
  97         if (this_ldata)                 /* data[] */
  98                 memcpy(outdata,data,this_ldata);
  99         set_message(cli->outbuf,14+lsetup,              /* wcnt, bcc */
 100                     PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
 101
 102         show_msg(cli->outbuf);
 103         send_smb(cli->fd,cli->outbuf);
 104
 105         if (this_ldata < ldata || this_lparam < lparam) {
 106                 /* receive interim response */
 107                 if (!receive_smb(cli->fd,cli->inbuf,cli->timeout) ||
 108                     CVAL(cli->inbuf,smb_rcls) != 0) {
 109                         return(False);
 110                 }
 111
 112                 tot_data = this_ldata;
 113                 tot_param = this_lparam;
 114
 115                 while (tot_data < ldata || tot_param < lparam)  {
 116                         this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
 117                         this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
 118
 119                         set_message(cli->outbuf,trans==SMBtrans?8:9,0,True);
 120                         CVAL(cli->outbuf,smb_com) = trans==SMBtrans ? SMBtranss : SMBtranss2;
 121
 122                         outparam = smb_buf(cli->outbuf);
 123                         outdata = outparam+this_lparam;
 124
 125                         /* secondary request */
 126                         SSVAL(cli->outbuf,smb_tpscnt,lparam);   /* tpscnt */
 127                         SSVAL(cli->outbuf,smb_tdscnt,ldata);    /* tdscnt */
 128                         SSVAL(cli->outbuf,smb_spscnt,this_lparam);      /* pscnt */
 129                         SSVAL(cli->outbuf,smb_spsoff,smb_offset(outparam,cli->outbuf)); /* psoff */
 130                         SSVAL(cli->outbuf,smb_spsdisp,tot_param);       /* psdisp */
 131                         SSVAL(cli->outbuf,smb_sdscnt,this_ldata);       /* dscnt */
 132                         SSVAL(cli->outbuf,smb_sdsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
 133                         SSVAL(cli->outbuf,smb_sdsdisp,tot_data);        /* dsdisp */
 134                         if (trans==SMBtrans2)
 135                                 SSVALS(cli->outbuf,smb_sfid,fid);               /* fid */
 136                         if (this_lparam)                        /* param[] */
 137                                 memcpy(outparam,param,this_lparam);
 138                         if (this_ldata)                 /* data[] */
 139                                 memcpy(outdata,data,this_ldata);
 140                         set_message(cli->outbuf,trans==SMBtrans?8:9, /* wcnt, bcc */
 141                                     PTR_DIFF(outdata+this_ldata,smb_buf(cli->outbuf)),False);
 142
 143                         show_msg(cli->outbuf);
 144                         send_smb(cli->fd,cli->outbuf);
 145
 146                         tot_data += this_ldata;
 147                         tot_param += this_lparam;
 148                 }
 149         }
 150
 151         return(True);
 152 }
 153
 154
 155 /****************************************************************************
 156   receive a SMB trans or trans2 response allocating the necessary memory
 157   ****************************************************************************/
 158 static BOOL cli_receive_trans(struct cli_state *cli,
 159                               int trans,int *data_len,
 160                               int *param_len, char **data,char **param)
 161 {
 162         int total_data=0;
 163         int total_param=0;
 164         int this_data,this_param;
 165
 166         *data_len = *param_len = 0;
 167
 168         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
 169                 return False;
 170
 171         show_msg(cli->inbuf);
 172
 173         /* sanity check */
 174         if (CVAL(cli->inbuf,smb_com) != trans) {
 175                 DEBUG(0,("Expected %s response, got command 0x%02x\n",
 176                          trans==SMBtrans?"SMBtrans":"SMBtrans2",
 177                          CVAL(cli->inbuf,smb_com)));
 178                 return(False);
 179         }
 180         if (CVAL(cli->inbuf,smb_rcls) != 0)
 181                 return(False);
 182
 183         /* parse out the lengths */
 184         total_data = SVAL(cli->inbuf,smb_tdrcnt);
 185         total_param = SVAL(cli->inbuf,smb_tprcnt);
 186
 187         /* allocate it */
 188         *data = Realloc(*data,total_data);
 189         *param = Realloc(*param,total_param);
 190
 191         while (1)  {
 192                 this_data = SVAL(cli->inbuf,smb_drcnt);
 193                 this_param = SVAL(cli->inbuf,smb_prcnt);
 194
 195                 if (this_data + *data_len > total_data ||
 196                     this_param + *param_len > total_param) {
 197                         DEBUG(1,("Data overflow in cli_receive_trans\n"));
 198                         return False;
 199                 }
 200
 201                 if (this_data)
 202                         memcpy(*data + SVAL(cli->inbuf,smb_drdisp),
 203                                smb_base(cli->inbuf) + SVAL(cli->inbuf,smb_droff),
 204                                this_data);
 205                 if (this_param)
 206                         memcpy(*param + SVAL(cli->inbuf,smb_prdisp),
 207                                smb_base(cli->inbuf) + SVAL(cli->inbuf,smb_proff),
 208                                this_param);
 209                 *data_len += this_data;
 210                 *param_len += this_param;
 211
 212                 /* parse out the total lengths again - they can shrink! */
 213                 total_data = SVAL(cli->inbuf,smb_tdrcnt);
 214                 total_param = SVAL(cli->inbuf,smb_tprcnt);
 215
 216                 if (total_data <= *data_len && total_param <= *param_len)
 217                         break;
 218
 219                 if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
 220                         return False;
 221
 222                 show_msg(cli->inbuf);
 223
 224                 /* sanity check */
 225                 if (CVAL(cli->inbuf,smb_com) != trans) {
 226                         DEBUG(0,("Expected %s response, got command 0x%02x\n",
 227                                  trans==SMBtrans?"SMBtrans":"SMBtrans2",
 228                                  CVAL(cli->inbuf,smb_com)));
 229                         return(False);
 230                 }
 231                 if (CVAL(cli->inbuf,smb_rcls) != 0)
 232                         return(False);
 233         }
 234
 235         return(True);
 236 }
 237
 238
 239 /****************************************************************************
 240 call a remote api
 241 ****************************************************************************/
 242 static BOOL cli_api(struct cli_state *cli,
 243                     int prcnt,int drcnt,int mprcnt,int mdrcnt,int *rprcnt,
 244                     int *rdrcnt, char *param,char *data,
 245                     char **rparam, char **rdata)
 246 {
 247   cli_send_trans(cli,SMBtrans,PIPE_LANMAN,0,0,
 248                  data,param,NULL,
 249                  drcnt,prcnt,0,
 250                  mdrcnt,mprcnt,0);
 251
 252   return (cli_receive_trans(cli,SMBtrans,
 253                                      rdrcnt,rprcnt,
 254                                      rdata,rparam));
 255 }
 256
 257
 258 /****************************************************************************
 259 perform a NetWkstaUserLogon
 260 ****************************************************************************/
 261 BOOL cli_NetWkstaUserLogon(struct cli_state *cli,char *user, char *workstation)
 262 {
 263         char *rparam = NULL;
 264         char *rdata = NULL;
 265         char *p;
 266         int rdrcnt,rprcnt;
 267         pstring param;
 268
 269         memset(param, 0, sizeof(param));
 270
 271         /* send a SMBtrans command with api NetWkstaUserLogon */
 272         p = param;
 273         SSVAL(p,0,132); /* api number */
 274         p += 2;
 275         strcpy(p,"OOWb54WrLh");
 276         p = skip_string(p,1);
 277         strcpy(p,"WB21BWDWWDDDDDDDzzzD");
 278         p = skip_string(p,1);
 279         SSVAL(p,0,1);
 280         p += 2;
 281         strcpy(p,user);
 282         strupper(p);
 283         p += 21; p++; p += 15; p++;
 284         strcpy(p, workstation);
 285         strupper(p);
 286         p += 16;
 287         SSVAL(p, 0, BUFFER_SIZE);
 288         p += 2;
 289         SSVAL(p, 0, BUFFER_SIZE);
 290         p += 2;
 291
 292         cli->error = -1;
 293
 294         if (cli_api(cli, PTR_DIFF(p,param),0,
 295                     1024,BUFFER_SIZE,
 296                     &rprcnt,&rdrcnt,
 297                     param,NULL,
 298                     &rparam,&rdata)) {
 299                 cli->error = SVAL(rparam,0);
 300                 p = rdata;
 301
 302                 if (cli->error == 0) {
 303                         DEBUG(4,("NetWkstaUserLogon success\n"));
 304                         cli->privilages = SVAL(p, 24);
 305                         fstrcpy(cli->eff_name,p+2);
 306                 } else {
 307                         DEBUG(1,("NetwkstaUserLogon gave error %d\n", cli->error));
 308                 }
 309         }
 310
 311         if (rparam) free(rparam);
 312         if (rdata) free(rdata);
 313         return cli->error == 0;
 314 }
 315
 316
 317 /****************************************************************************
 318 call a NetServerEnum for the specified workgroup and servertype mask.
 319 This function then calls the specified callback function for each name returned.
 320
 321 The callback function takes 3 arguments: the machine name, the server type and
 322 the comment.
 323 ****************************************************************************/
 324 BOOL cli_NetServerEnum(struct cli_state *cli, char *workgroup, uint32 stype,
 325                        void (*fn)(char *, uint32, char *))
 326 {
 327         char *rparam = NULL;
 328         char *rdata = NULL;
 329         int rdrcnt,rprcnt;
 330         char *p;
 331         pstring param;
 332         int uLevel = 1;
 333         int count = -1;
 334
 335         /* send a SMBtrans command with api NetServerEnum */
 336         p = param;
 337         SSVAL(p,0,0x68); /* api number */
 338         p += 2;
 339         strcpy(p,"WrLehDz");
 340         p = skip_string(p,1);
 341
 342         strcpy(p,"B16BBDz");
 343
 344         p = skip_string(p,1);
 345         SSVAL(p,0,uLevel);
 346         SSVAL(p,2,BUFFER_SIZE);
 347         p += 4;
 348         SIVAL(p,0,stype);
 349         p += 4;
 350
 351         pstrcpy(p, workgroup);
 352         p = skip_string(p,1);
 353
 354         if (cli_api(cli,
 355                     PTR_DIFF(p,param), /* param count */
 356                     0, /*data count */
 357                     8, /* mprcount */
 358                     BUFFER_SIZE, /* mdrcount */
 359                     &rprcnt,&rdrcnt,
 360                     param, NULL,
 361                     &rparam,&rdata)) {
 362                 int res = SVAL(rparam,0);
 363                 int converter=SVAL(rparam,2);
 364                 int i;
 365
 366                 if (res == 0) {
 367                         count=SVAL(rparam,4);
 368                         p = rdata;
 369
 370                         for (i = 0;i < count;i++, p += 26) {
 371                                 char *sname = p;
 372                                 int comment_offset = (IVAL(p,22) & 0xFFFF)-converter;
 373                                 char *cmnt = comment_offset?(rdata+comment_offset):"";
 374                                 if (comment_offset < 0 || comment_offset > rdrcnt) continue;
 375
 376                                 stype = IVAL(p,18) & ~SV_TYPE_LOCAL_LIST_ONLY;
 377
 378                                 fn(sname, stype, cmnt);
 379                         }
 380                 }
 381         }
 382
 383         if (rparam) free(rparam);
 384         if (rdata) free(rdata);
 385
 386         return(count > 0);
 387 }
 388
 389
 390
 391
 392 static  struct {
 393     int prot;
 394     char *name;
 395   }
 396 prots[] =
 397     {
 398       {PROTOCOL_CORE,"PC NETWORK PROGRAM 1.0"},
 399       {PROTOCOL_COREPLUS,"MICROSOFT NETWORKS 1.03"},
 400       {PROTOCOL_LANMAN1,"MICROSOFT NETWORKS 3.0"},
 401       {PROTOCOL_LANMAN1,"LANMAN1.0"},
 402       {PROTOCOL_LANMAN2,"LM1.2X002"},
 403       {PROTOCOL_LANMAN2,"Samba"},
 404       {PROTOCOL_NT1,"NT LM 0.12"},
 405       {PROTOCOL_NT1,"NT LANMAN 1.0"},
 406       {-1,NULL}
 407     };
 408
 409
 410 /****************************************************************************
 411 send a session setup
 412 ****************************************************************************/
 413 BOOL cli_session_setup(struct cli_state *cli,
 414                        char *user,
 415                        char *pass, int passlen,
 416                        char *ntpass, int ntpasslen,
 417                        char *workgroup)
 418 {
 419         char *p;
 420         fstring pword;
 421
 422         if (cli->protocol < PROTOCOL_LANMAN1)
 423                 return True;
 424
 425         if (passlen > sizeof(pword)-1) {
 426                 return False;
 427         }
 428
 429         if ((cli->sec_mode & 2) && *pass && passlen != 24) {
 430                 passlen = 24;
 431                 SMBencrypt((uchar *)pass,(uchar *)cli->cryptkey,(uchar *)pword);
 432         } else {
 433                 memcpy(pword, pass, passlen);
 434         }
 435
 436         /* if in share level security then don't send a password now */
 437         if (!(cli->sec_mode & 1)) {fstrcpy(pword, "");passlen=1;}
 438
 439         /* send a session setup command */
 440         bzero(cli->outbuf,smb_size);
 441
 442         if (cli->protocol < PROTOCOL_NT1) {
 443                 set_message(cli->outbuf,10,1 + strlen(user) + passlen,True);
 444                 CVAL(cli->outbuf,smb_com) = SMBsesssetupX;
 445                 cli_setup_packet(cli);
 446
 447                 CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 448                 SSVAL(cli->outbuf,smb_vwv2,cli->max_xmit);
 449                 SSVAL(cli->outbuf,smb_vwv3,2);
 450                 SSVAL(cli->outbuf,smb_vwv4,1);
 451                 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
 452                 SSVAL(cli->outbuf,smb_vwv7,passlen);
 453                 p = smb_buf(cli->outbuf);
 454                 memcpy(p,pword,passlen);
 455                 p += passlen;
 456                 strcpy(p,user);
 457                 strupper(p);
 458         } else {
 459                 set_message(cli->outbuf,13,0,True);
 460                 CVAL(cli->outbuf,smb_com) = SMBsesssetupX;
 461                 cli_setup_packet(cli);
 462
 463                 CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 464                 SSVAL(cli->outbuf,smb_vwv2,BUFFER_SIZE);
 465                 SSVAL(cli->outbuf,smb_vwv3,2);
 466                 SSVAL(cli->outbuf,smb_vwv4,cli->pid);
 467                 SIVAL(cli->outbuf,smb_vwv5,cli->sesskey);
 468                 SSVAL(cli->outbuf,smb_vwv7,passlen);
 469                 SSVAL(cli->outbuf,smb_vwv8,ntpasslen);
 470                 p = smb_buf(cli->outbuf);
 471                 memcpy(p,pword,passlen);
 472                 p += SVAL(cli->outbuf,smb_vwv7);
 473                 memcpy(p,ntpass,ntpasslen);
 474                 p += SVAL(cli->outbuf,smb_vwv8);
 475                 strcpy(p,user);
 476                 strupper(p);
 477                 p = skip_string(p,1);
 478                 strcpy(p,workgroup);
 479                 strupper(p);
 480                 p = skip_string(p,1);
 481                 strcpy(p,"Unix");p = skip_string(p,1);
 482                 strcpy(p,"Samba");p = skip_string(p,1);
 483                 set_message(cli->outbuf,13,PTR_DIFF(p,smb_buf(cli->outbuf)),False);
 484         }
 485
 486       send_smb(cli->fd,cli->outbuf);
 487       if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
 488               return False;
 489
 490       show_msg(cli->inbuf);
 491
 492       if (CVAL(cli->inbuf,smb_rcls) != 0) {
 493               return False;
 494       }
 495
 496       /* use the returned uid from now on */
 497       cli->uid = SVAL(cli->inbuf,smb_uid);
 498
 499       return True;
 500 }
 501
 502
 503 /****************************************************************************
 504 send a tconX
 505 ****************************************************************************/
 506 BOOL cli_send_tconX(struct cli_state *cli,
 507                     char *share, char *dev, char *pass, int passlen)
 508 {
 509         fstring fullshare, pword;
 510         char *p;
 511         bzero(cli->outbuf,smb_size);
 512         bzero(cli->inbuf,smb_size);
 513
 514         if (cli->sec_mode & 1) {
 515                 passlen = 1;
 516                 pass = "";
 517         }
 518
 519         if ((cli->sec_mode & 2) && *pass && passlen != 24) {
 520                 passlen = 24;
 521                 SMBencrypt((uchar *)pass,(uchar *)cli->cryptkey,(uchar *)pword);
 522         } else {
 523                 memcpy(pword, pass, passlen);
 524         }
 525
 526         sprintf(fullshare, "\\\\%s\\%s", cli->desthost, share);
 527
 528         set_message(cli->outbuf,4,
 529                     2 + strlen(fullshare) + passlen + strlen(dev),True);
 530         CVAL(cli->outbuf,smb_com) = SMBtconX;
 531         cli_setup_packet(cli);
 532
 533         SSVAL(cli->outbuf,smb_vwv0,0xFF);
 534         SSVAL(cli->outbuf,smb_vwv3,passlen);
 535
 536         p = smb_buf(cli->outbuf);
 537         memcpy(p,pword,passlen);
 538         p += passlen;
 539         strcpy(p,fullshare);
 540         p = skip_string(p,1);
 541         strcpy(p,dev);
 542
 543         SCVAL(cli->inbuf,smb_rcls, 1);
 544
 545         send_smb(cli->fd,cli->outbuf);
 546         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
 547                 return False;
 548
 549         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 550                 return False;
 551         }
 552
 553         cli->cnum = SVAL(cli->inbuf,smb_tid);
 554         return True;
 555 }
 556
 557
 558 /****************************************************************************
 559 send a tree disconnect
 560 ****************************************************************************/
 561 BOOL cli_tdis(struct cli_state *cli)
 562 {
 563         bzero(cli->outbuf,smb_size);
 564         set_message(cli->outbuf,0,0,True);
 565         CVAL(cli->outbuf,smb_com) = SMBtdis;
 566         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 567         cli_setup_packet(cli);
 568
 569         send_smb(cli->fd,cli->outbuf);
 570         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
 571                 return False;
 572
 573         return CVAL(cli->inbuf,smb_rcls) == 0;
 574 }
 575
 576 /****************************************************************************
 577 delete a file
 578 ****************************************************************************/
 579 BOOL cli_unlink(struct cli_state *cli, char *fname)
 580 {
 581         char *p;
 582
 583         bzero(cli->outbuf,smb_size);
 584         bzero(cli->inbuf,smb_size);
 585
 586         set_message(cli->outbuf,1, 2 + strlen(fname),True);
 587
 588         CVAL(cli->outbuf,smb_com) = SMBunlink;
 589         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 590         cli_setup_packet(cli);
 591
 592         SSVAL(cli->outbuf,smb_vwv0,aSYSTEM | aHIDDEN);
 593
 594         p = smb_buf(cli->outbuf);
 595         *p++ = 4;
 596         strcpy(p,fname);
 597         p = skip_string(p,1);
 598
 599         send_smb(cli->fd,cli->outbuf);
 600         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 601                 return False;
 602         }
 603
 604         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 605                 return False;
 606         }
 607
 608         return True;
 609 }
 610
 611
 612
 613 /****************************************************************************
 614 open a file
 615 ****************************************************************************/
 616 int cli_open(struct cli_state *cli, char *fname, int flags, int share_mode)
 617 {
 618         char *p;
 619         unsigned openfn=0;
 620         unsigned accessmode=0;
 621
 622         if (flags & O_CREAT)
 623                 openfn |= (1<<4);
 624         if (!(flags & O_EXCL)) {
 625                 if (flags & O_TRUNC)
 626                         openfn |= (1<<1);
 627                 else
 628                         openfn |= (1<<0);
 629         }
 630
 631         accessmode = (share_mode<<4);
 632
 633         if ((flags & O_RDWR) == O_RDWR) {
 634                 accessmode |= 2;
 635         } else if ((flags & O_WRONLY) == O_WRONLY) {
 636                 accessmode |= 1;
 637         }
 638
 639         bzero(cli->outbuf,smb_size);
 640         bzero(cli->inbuf,smb_size);
 641
 642         set_message(cli->outbuf,15,1 + strlen(fname),True);
 643
 644         CVAL(cli->outbuf,smb_com) = SMBopenX;
 645         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 646         cli_setup_packet(cli);
 647
 648         SSVAL(cli->outbuf,smb_vwv0,0xFF);
 649         SSVAL(cli->outbuf,smb_vwv2,0);  /* no additional info */
 650         SSVAL(cli->outbuf,smb_vwv3,accessmode);
 651         SSVAL(cli->outbuf,smb_vwv4,aSYSTEM | aHIDDEN);
 652         SSVAL(cli->outbuf,smb_vwv5,0);
 653         SSVAL(cli->outbuf,smb_vwv8,openfn);
 654
 655         p = smb_buf(cli->outbuf);
 656         strcpy(p,fname);
 657         p = skip_string(p,1);
 658
 659         send_smb(cli->fd,cli->outbuf);
 660         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 661                 return -1;
 662         }
 663
 664         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 665                 return -1;
 666         }
 667
 668         return SVAL(cli->inbuf,smb_vwv2);
 669 }
 670
 671
 672
 673
 674 /****************************************************************************
 675   close a file
 676 ****************************************************************************/
 677 BOOL cli_close(struct cli_state *cli, int fnum)
 678 {
 679         bzero(cli->outbuf,smb_size);
 680         bzero(cli->inbuf,smb_size);
 681
 682         set_message(cli->outbuf,3,0,True);
 683
 684         CVAL(cli->outbuf,smb_com) = SMBclose;
 685         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 686         cli_setup_packet(cli);
 687
 688         SSVAL(cli->outbuf,smb_vwv0,fnum);
 689         SIVALS(cli->outbuf,smb_vwv1,-1);
 690
 691         send_smb(cli->fd,cli->outbuf);
 692         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 693                 return False;
 694         }
 695
 696         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 697                 return False;
 698         }
 699
 700         return True;
 701 }
 702
 703
 704 /****************************************************************************
 705   lock a file
 706 ****************************************************************************/
 707 BOOL cli_lock(struct cli_state *cli, int fnum, uint32 offset, uint32 len, int timeout)
 708 {
 709         char *p;
 710
 711         bzero(cli->outbuf,smb_size);
 712         bzero(cli->inbuf,smb_size);
 713
 714         set_message(cli->outbuf,8,10,True);
 715
 716         CVAL(cli->outbuf,smb_com) = SMBlockingX;
 717         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 718         cli_setup_packet(cli);
 719
 720         CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 721         SSVAL(cli->outbuf,smb_vwv2,fnum);
 722         CVAL(cli->outbuf,smb_vwv3) = 0;
 723         SIVALS(cli->outbuf, smb_vwv4, timeout);
 724         SSVAL(cli->outbuf,smb_vwv6,0);
 725         SSVAL(cli->outbuf,smb_vwv7,1);
 726
 727         p = smb_buf(cli->outbuf);
 728         SSVAL(p, 0, cli->pid);
 729         SIVAL(p, 2, offset);
 730         SIVAL(p, 6, len);
 731
 732         send_smb(cli->fd,cli->outbuf);
 733         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 734                 return False;
 735         }
 736
 737         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 738                 return False;
 739         }
 740
 741         return True;
 742 }
 743
 744 /****************************************************************************
 745   unlock a file
 746 ****************************************************************************/
 747 BOOL cli_unlock(struct cli_state *cli, int fnum, uint32 offset, uint32 len, int timeout)
 748 {
 749         char *p;
 750
 751         bzero(cli->outbuf,smb_size);
 752         bzero(cli->inbuf,smb_size);
 753
 754         set_message(cli->outbuf,8,10,True);
 755
 756         CVAL(cli->outbuf,smb_com) = SMBlockingX;
 757         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 758         cli_setup_packet(cli);
 759
 760         CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 761         SSVAL(cli->outbuf,smb_vwv2,fnum);
 762         CVAL(cli->outbuf,smb_vwv3) = 0;
 763         SIVALS(cli->outbuf, smb_vwv4, timeout);
 764         SSVAL(cli->outbuf,smb_vwv6,1);
 765         SSVAL(cli->outbuf,smb_vwv7,0);
 766
 767         p = smb_buf(cli->outbuf);
 768         SSVAL(p, 0, cli->pid);
 769         SIVAL(p, 2, offset);
 770         SIVAL(p, 6, len);
 771
 772         send_smb(cli->fd,cli->outbuf);
 773         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 774                 return False;
 775         }
 776
 777         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 778                 return False;
 779         }
 780
 781         return True;
 782 }
 783
 784
 785 /****************************************************************************
 786   read from a file
 787 ****************************************************************************/
 788 int cli_read(struct cli_state *cli, int fnum, char *buf, uint32 offset, uint16 size)
 789 {
 790         char *p;
 791
 792         bzero(cli->outbuf,smb_size);
 793         bzero(cli->inbuf,smb_size);
 794
 795         set_message(cli->outbuf,10,0,True);
 796
 797         CVAL(cli->outbuf,smb_com) = SMBreadX;
 798         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 799         cli_setup_packet(cli);
 800
 801         CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 802         SSVAL(cli->outbuf,smb_vwv2,fnum);
 803         SIVAL(cli->outbuf,smb_vwv3,offset);
 804         SSVAL(cli->outbuf,smb_vwv5,size);
 805         SSVAL(cli->outbuf,smb_vwv6,size);
 806
 807         send_smb(cli->fd,cli->outbuf);
 808         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 809                 return -1;
 810         }
 811
 812         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 813                 return -1;
 814         }
 815
 816         size = SVAL(cli->inbuf, smb_vwv5);
 817         p = smb_base(cli->inbuf) + SVAL(cli->inbuf,smb_vwv6);
 818
 819         memcpy(buf, p, size);
 820
 821         return size;
 822 }
 823
 824
 825 /****************************************************************************
 826   write to a file
 827 ****************************************************************************/
 828 int cli_write(struct cli_state *cli, int fnum, char *buf, uint32 offset, uint16 size)
 829 {
 830         char *p;
 831
 832         bzero(cli->outbuf,smb_size);
 833         bzero(cli->inbuf,smb_size);
 834
 835         set_message(cli->outbuf,12,size,True);
 836
 837         CVAL(cli->outbuf,smb_com) = SMBwriteX;
 838         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 839         cli_setup_packet(cli);
 840
 841         CVAL(cli->outbuf,smb_vwv0) = 0xFF;
 842         SSVAL(cli->outbuf,smb_vwv2,fnum);
 843         SIVAL(cli->outbuf,smb_vwv3,offset);
 844
 845         SSVAL(cli->outbuf,smb_vwv10,size);
 846         SSVAL(cli->outbuf,smb_vwv11,smb_buf(cli->outbuf) - smb_base(cli->outbuf));
 847
 848         p = smb_base(cli->outbuf) + SVAL(cli->outbuf,smb_vwv11);
 849         memcpy(p, buf, size);
 850
 851         send_smb(cli->fd,cli->outbuf);
 852         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 853                 return -1;
 854         }
 855
 856         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 857                 return -1;
 858         }
 859
 860         return SVAL(cli->inbuf, smb_vwv2);
 861 }
 862
 863
 864 /****************************************************************************
 865 do a SMBgetatr call
 866 ****************************************************************************/
 867 BOOL cli_getatr(struct cli_state *cli, char *fname,
 868                 int *attr, uint32 *size, time_t *t)
 869 {
 870         char *p;
 871
 872         bzero(cli->outbuf,smb_size);
 873         bzero(cli->inbuf,smb_size);
 874
 875         set_message(cli->outbuf,0,strlen(fname)+2,True);
 876
 877         CVAL(cli->outbuf,smb_com) = SMBgetatr;
 878         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 879         cli_setup_packet(cli);
 880
 881         p = smb_buf(cli->outbuf);
 882         *p = 4;
 883         strcpy(p+1, fname);
 884
 885         send_smb(cli->fd,cli->outbuf);
 886         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 887                 return False;
 888         }
 889
 890         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 891                 return False;
 892         }
 893
 894         if (size) {
 895                 *size = IVAL(cli->inbuf, smb_vwv3);
 896         }
 897
 898         if (t) {
 899                 *t = make_unix_date3(cli->inbuf+smb_vwv1);
 900         }
 901
 902         if (attr) {
 903                 *attr = SVAL(cli->inbuf,smb_vwv0);
 904         }
 905
 906
 907         return True;
 908 }
 909
 910
 911 /****************************************************************************
 912 do a SMBsetatr call
 913 ****************************************************************************/
 914 BOOL cli_setatr(struct cli_state *cli, char *fname, int attr, time_t t)
 915 {
 916         char *p;
 917
 918         bzero(cli->outbuf,smb_size);
 919         bzero(cli->inbuf,smb_size);
 920
 921         set_message(cli->outbuf,8,strlen(fname)+2,True);
 922
 923         CVAL(cli->outbuf,smb_com) = SMBsetatr;
 924         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 925         cli_setup_packet(cli);
 926
 927         SSVAL(cli->outbuf,smb_vwv0, attr);
 928         put_dos_date3(cli->outbuf,smb_vwv1, t);
 929
 930         p = smb_buf(cli->outbuf);
 931         *p = 4;
 932         strcpy(p+1, fname);
 933
 934         send_smb(cli->fd,cli->outbuf);
 935         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout)) {
 936                 return False;
 937         }
 938
 939         if (CVAL(cli->inbuf,smb_rcls) != 0) {
 940                 return False;
 941         }
 942
 943         return True;
 944 }
 945
 946 /****************************************************************************
 947 send a qpathinfo call
 948 ****************************************************************************/
 949 BOOL cli_qpathinfo(struct cli_state *cli, char *fname,
 950                    time_t *c_time, time_t *a_time, time_t *m_time, uint32 *size)
 951 {
 952         int data_len = 0;
 953         int param_len = 0;
 954         uint16 setup = TRANSACT2_QPATHINFO;
 955         pstring param;
 956         char *rparam=NULL, *rdata=NULL;
 957
 958         param_len = strlen(fname) + 7;
 959
 960         memset(param, 0, param_len);
 961         SSVAL(param, 0, SMB_INFO_STANDARD);
 962         pstrcpy(&param[6], fname);
 963
 964         if (!cli_send_trans(cli, SMBtrans2, NULL, -1, 0,
 965                             NULL, param, &setup,
 966                             data_len, param_len, 1,
 967                             cli->max_xmit, 10, 0)) {
 968                 return False;
 969         }
 970
 971         if (!cli_receive_trans(cli, SMBtrans2, &data_len, &param_len,
 972                                &rdata, &rparam)) {
 973                 return False;
 974         }
 975
 976         if (!rdata || data_len < 22) {
 977                 return False;
 978         }
 979
 980         if (c_time) {
 981                 *c_time = make_unix_date2(rdata+0);
 982         }
 983         if (a_time) {
 984                 *a_time = make_unix_date2(rdata+4);
 985         }
 986         if (m_time) {
 987                 *m_time = make_unix_date2(rdata+8);
 988         }
 989         if (size) {
 990                 *size = IVAL(rdata, 12);
 991         }
 992
 993         if (rdata) free(rdata);
 994         if (rparam) free(rparam);
 995         return True;
 996 }
 997
 998 /****************************************************************************
 999 send a qpathinfo call with the SMB_QUERY_FILE_ALL_INFO info level
1000 ****************************************************************************/
1001 BOOL cli_qpathinfo2(struct cli_state *cli, char *fname,
1002                     time_t *c_time, time_t *a_time, time_t *m_time,
1003                     time_t *w_time, uint32 *size)
1004 {
1005         int data_len = 0;
1006         int param_len = 0;
1007         uint16 setup = TRANSACT2_QPATHINFO;
1008         pstring param;
1009         char *rparam=NULL, *rdata=NULL;
1010
1011         param_len = strlen(fname) + 7;
1012
1013         memset(param, 0, param_len);
1014         SSVAL(param, 0, SMB_QUERY_FILE_ALL_INFO);
1015         pstrcpy(&param[6], fname);
1016
1017         if (!cli_send_trans(cli, SMBtrans2, NULL, -1, 0,
1018                             NULL, param, &setup,
1019                             data_len, param_len, 1,
1020                             cli->max_xmit, 10, 0)) {
1021                 return False;
1022         }
1023
1024         if (!cli_receive_trans(cli, SMBtrans2, &data_len, &param_len,
1025                                &rdata, &rparam)) {
1026                 return False;
1027         }
1028
1029         if (!rdata || data_len < 22) {
1030                 return False;
1031         }
1032
1033         if (c_time) {
1034                 *c_time = interpret_long_date(rdata+0) - cli->serverzone;
1035         }
1036         if (a_time) {
1037                 *a_time = interpret_long_date(rdata+8) - cli->serverzone;
1038         }
1039         if (m_time) {
1040                 *m_time = interpret_long_date(rdata+16) - cli->serverzone;
1041         }
1042         if (w_time) {
1043                 *w_time = interpret_long_date(rdata+24) - cli->serverzone;
1044         }
1045         if (size) {
1046                 *size = IVAL(rdata, 40);
1047         }
1048
1049         if (rdata) free(rdata);
1050         if (rparam) free(rparam);
1051         return True;
1052 }
1053
1054
1055 /****************************************************************************
1056 send a qfileinfo call
1057 ****************************************************************************/
1058 BOOL cli_qfileinfo(struct cli_state *cli, int fnum,
1059                    time_t *c_time, time_t *a_time, time_t *m_time, uint32 *size)
1060 {
1061         int data_len = 0;
1062         int param_len = 0;
1063         uint16 setup = TRANSACT2_QFILEINFO;
1064         pstring param;
1065         char *rparam=NULL, *rdata=NULL;
1066
1067         param_len = 4;
1068
1069         memset(param, 0, param_len);
1070         SSVAL(param, 0, fnum);
1071         SSVAL(param, 2, SMB_INFO_STANDARD);
1072
1073         if (!cli_send_trans(cli, SMBtrans2, NULL, -1, 0,
1074                             NULL, param, &setup,
1075                             data_len, param_len, 1,
1076                             cli->max_xmit, 2, 0)) {
1077                 return False;
1078         }
1079
1080         if (!cli_receive_trans(cli, SMBtrans2, &data_len, &param_len,
1081                                &rdata, &rparam)) {
1082                 return False;
1083         }
1084
1085         if (!rdata || data_len < 22) {
1086                 return False;
1087         }
1088
1089         if (c_time) {
1090                 *c_time = make_unix_date2(rdata+0);
1091         }
1092         if (a_time) {
1093                 *a_time = make_unix_date2(rdata+4);
1094         }
1095         if (m_time) {
1096                 *m_time = make_unix_date2(rdata+8);
1097         }
1098         if (size) {
1099                 *size = IVAL(rdata, 12);
1100         }
1101
1102         if (rdata) free(rdata);
1103         if (rparam) free(rparam);
1104         return True;
1105 }
1106
1107
1108 /****************************************************************************
1109 send a negprot command
1110 ****************************************************************************/
1111 BOOL cli_negprot(struct cli_state *cli)
1112 {
1113         char *p;
1114         int numprots;
1115         int plength;
1116
1117         bzero(cli->outbuf,smb_size);
1118
1119         /* setup the protocol strings */
1120         for (plength=0,numprots=0;
1121              prots[numprots].name && prots[numprots].prot<=cli->protocol;
1122              numprots++)
1123                 plength += strlen(prots[numprots].name)+2;
1124
1125         set_message(cli->outbuf,0,plength,True);
1126
1127         p = smb_buf(cli->outbuf);
1128         for (numprots=0;
1129              prots[numprots].name && prots[numprots].prot<=cli->protocol;
1130              numprots++) {
1131                 *p++ = 2;
1132                 strcpy(p,prots[numprots].name);
1133                 p += strlen(p) + 1;
1134         }
1135
1136         CVAL(cli->outbuf,smb_com) = SMBnegprot;
1137         cli_setup_packet(cli);
1138
1139         CVAL(smb_buf(cli->outbuf),0) = 2;
1140
1141         send_smb(cli->fd,cli->outbuf);
1142         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
1143                 return False;
1144
1145         show_msg(cli->inbuf);
1146
1147         if (CVAL(cli->inbuf,smb_rcls) != 0 ||
1148             ((int)SVAL(cli->inbuf,smb_vwv0) >= numprots)) {
1149                 return(False);
1150         }
1151
1152         cli->protocol = prots[SVAL(cli->inbuf,smb_vwv0)].prot;
1153
1154
1155         if (cli->protocol >= PROTOCOL_NT1) {
1156                 /* NT protocol */
1157                 cli->sec_mode = CVAL(cli->inbuf,smb_vwv1);
1158                 cli->max_xmit = IVAL(cli->inbuf,smb_vwv3+1);
1159                 cli->sesskey = IVAL(cli->inbuf,smb_vwv7+1);
1160                 cli->serverzone = SVALS(cli->inbuf,smb_vwv15+1)*60;
1161                 /* this time arrives in real GMT */
1162                 cli->servertime = interpret_long_date(cli->inbuf+smb_vwv11+1);
1163                 memcpy(cli->cryptkey,smb_buf(cli->inbuf),8);
1164                 if (IVAL(cli->inbuf,smb_vwv9+1) & 1)
1165                         cli->readbraw_supported =
1166                                 cli->writebraw_supported = True;
1167         } else if (cli->protocol >= PROTOCOL_LANMAN1) {
1168                 cli->sec_mode = SVAL(cli->inbuf,smb_vwv1);
1169                 cli->max_xmit = SVAL(cli->inbuf,smb_vwv2);
1170                 cli->sesskey = IVAL(cli->inbuf,smb_vwv6);
1171                 cli->serverzone = SVALS(cli->inbuf,smb_vwv10)*60;
1172                 /* this time is converted to GMT by make_unix_date */
1173                 cli->servertime = make_unix_date(cli->inbuf+smb_vwv8);
1174                 cli->readbraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x1) != 0);
1175                 cli->writebraw_supported = ((SVAL(cli->inbuf,smb_vwv5) & 0x2) != 0);
1176                 memcpy(cli->cryptkey,smb_buf(cli->inbuf),8);
1177         } else {
1178                 /* the old core protocol */
1179                 cli->sec_mode = 0;
1180                 cli->serverzone = TimeDiff(time(NULL));
1181         }
1182
1183         return True;
1184 }
1185
1186
1187 /****************************************************************************
1188   send a session request
1189 ****************************************************************************/
1190 BOOL cli_session_request(struct cli_state *cli, char *host, int name_type,
1191                          char *myname)
1192 {
1193         fstring dest;
1194         char *p;
1195         int len = 4;
1196         /* send a session request (RFC 1002) */
1197
1198         fstrcpy(dest,host);
1199
1200         p = strchr(dest,'.');
1201         if (p) *p = 0;
1202
1203         fstrcpy(cli->desthost, dest);
1204
1205         /* put in the destination name */
1206         p = cli->outbuf+len;
1207         name_mangle(dest,p,name_type);
1208         len += name_len(p);
1209
1210         /* and my name */
1211         p = cli->outbuf+len;
1212         name_mangle(myname,p,0);
1213         len += name_len(p);
1214
1215         /* setup the packet length */
1216         _smb_setlen(cli->outbuf,len);
1217         CVAL(cli->outbuf,0) = 0x81;
1218
1219         send_smb(cli->fd,cli->outbuf);
1220         DEBUG(5,("Sent session request\n"));
1221
1222         if (!receive_smb(cli->fd,cli->inbuf,cli->timeout))
1223                 return False;
1224
1225         if (CVAL(cli->inbuf,0) != 0x82) {
1226                 cli->error = CVAL(cli->inbuf,0);
1227                 return False;
1228         }
1229         return(True);
1230 }
1231
1232
1233 /****************************************************************************
1234 open the client sockets
1235 ****************************************************************************/
1236 BOOL cli_connect(struct cli_state *cli, char *host, struct in_addr *ip)
1237 {
1238         struct in_addr dest_ip;
1239
1240         fstrcpy(cli->desthost, host);
1241
1242         if (!ip) {
1243                 struct hostent *hp;
1244
1245                 if ((hp = Get_Hostbyname(cli->desthost)) == 0) {
1246                         return False;
1247                 }
1248
1249                 putip((char *)&dest_ip,(char *)hp->h_addr);
1250         } else {
1251                 dest_ip = *ip;
1252         }
1253
1254
1255         cli->fd = open_socket_out(SOCK_STREAM, &dest_ip, 139, cli->timeout);
1256         if (cli->fd == -1)
1257                 return False;
1258
1259         return True;
1260 }
1261
1262
1263 /****************************************************************************
1264 initialise a client structure
1265 ****************************************************************************/
1266 BOOL cli_initialise(struct cli_state *cli)
1267 {
1268         if (cli->initialised) cli_shutdown(cli);
1269
1270         memset(cli, 0, sizeof(*cli));
1271         cli->fd = -1;
1272         cli->cnum = -1;
1273         cli->pid = getpid();
1274         cli->mid = 1;
1275         cli->uid = getuid();
1276         cli->protocol = PROTOCOL_NT1;
1277         cli->timeout = 20000;
1278         cli->bufsize = 0x10000;
1279         cli->max_xmit = cli->bufsize - 4;
1280         cli->outbuf = (char *)malloc(cli->bufsize);
1281         cli->inbuf = (char *)malloc(cli->bufsize);
1282         if (!cli->outbuf || !cli->inbuf) return False;
1283         cli->initialised = 1;
1284         return True;
1285 }
1286
1287 /****************************************************************************
1288 shutdown a client structure
1289 ****************************************************************************/
1290 void cli_shutdown(struct cli_state *cli)
1291 {
1292         if (cli->outbuf) free(cli->outbuf);
1293         if (cli->inbuf) free(cli->inbuf);
1294         if (cli->fd != -1) close(cli->fd);
1295         memset(cli, 0, sizeof(*cli));
1296 }
1297
1298 /****************************************************************************
1299   return a description of the error
1300 ****************************************************************************/
1301 char *cli_errstr(struct cli_state *cli)
1302 {
1303         return smb_errstr(cli->inbuf);
1304 }
1305
1306 /****************************************************************************
1307   return error codes for the last packet
1308 ****************************************************************************/
1309 void cli_error(struct cli_state *cli, int *eclass, int *num)
1310 {
1311         *eclass = CVAL(cli->inbuf,smb_rcls);
1312         *num = SVAL(cli->inbuf,smb_err);
1313 }
1314
1315 /****************************************************************************
1316 set socket options on a open connection
1317 ****************************************************************************/
1318 void cli_sockopt(struct cli_state *cli, char *options)
1319 {
1320         set_socket_options(cli->fd, options);
1321 }
1322
1323 /****************************************************************************
1324 set the PID to use for smb messages. Return the old pid.
1325 ****************************************************************************/
1326 int cli_setpid(struct cli_state *cli, int pid)
1327 {
1328         int ret = cli->pid;
1329         cli->pid = pid;
1330         return ret;
1331 }