source3/libsmb/cliprint.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client print routines
   4    Copyright (C) Andrew Tridgell 1994-1998
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21
  22 /*****************************************************************************
  23  Convert a character pointer in a cli_call_api() response to a form we can use.
  24  This function contains code to prevent core dumps if the server returns
  25  invalid data.
  26 *****************************************************************************/
  27 static const char *fix_char_ptr(unsigned int datap, unsigned int converter,
  28                           char *rdata, int rdrcnt)
  29 {
  30         unsigned int offset;
  31
  32         if (datap == 0) {
  33                 /* turn NULL pointers into zero length strings */
  34                 return "";
  35         }
  36
  37         offset = datap - converter;
  38
  39         if (offset >= rdrcnt) {
  40                 DEBUG(1,("bad char ptr: datap=%u, converter=%u rdrcnt=%d>",
  41                          datap, converter, rdrcnt));
  42                 return "<ERROR>";
  43         }
  44         return &rdata[offset];
  45 }
  46
  47 /****************************************************************************
  48 call fn() on each entry in a print queue
  49 ****************************************************************************/
  50
  51 int cli_print_queue(struct cli_state *cli,
  52                     void (*fn)(struct print_job_info *))
  53 {
  54         char *rparam = NULL;
  55         char *rdata = NULL;
  56         char *p;
  57         unsigned int rdrcnt, rprcnt;
  58         char param[1024];
  59         int result_code=0;
  60         int i = -1;
  61
  62         memset(param,'\0',sizeof(param));
  63
  64         p = param;
  65         SSVAL(p,0,76);         /* API function number 76 (DosPrintJobEnum) */
  66         p += 2;
  67         safe_strcpy_base(p,"zWrLeh", param, sizeof(param));   /* parameter description? */
  68         p = skip_string(param,sizeof(param),p);
  69         safe_strcpy_base(p,"WWzWWDDzz", param, sizeof(param));  /* returned data format */
  70         p = skip_string(param,sizeof(param),p);
  71         safe_strcpy_base(p,cli->share, param, sizeof(param));    /* name of queue */
  72         p = skip_string(param,sizeof(param),p);
  73         SSVAL(p,0,2);   /* API function level 2, PRJINFO_2 data structure */
  74         SSVAL(p,2,1000); /* size of bytes of returned data buffer */
  75         p += 4;
  76         safe_strcpy_base(p,"", param,sizeof(param));   /* subformat */
  77         p = skip_string(param,sizeof(param),p);
  78
  79         DEBUG(4,("doing cli_print_queue for %s\n", cli->share));
  80
  81         if (cli_api(cli,
  82                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
  83                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
  84                     &rparam, &rprcnt,                /* return params, length */
  85                     &rdata, &rdrcnt)) {               /* return data, length */
  86                 int converter;
  87                 result_code = SVAL(rparam,0);
  88                 converter = SVAL(rparam,2);       /* conversion factor */
  89
  90                 if (result_code == 0) {
  91                         struct print_job_info job;
  92
  93                         p = rdata;
  94
  95                         for (i = 0; i < SVAL(rparam,4); ++i) {
  96                                 job.id = SVAL(p,0);
  97                                 job.priority = SVAL(p,2);
  98                                 fstrcpy(job.user,
  99                                         fix_char_ptr(SVAL(p,4), converter,
 100                                                      rdata, rdrcnt));
 101                                 job.t = make_unix_date3(
 102                                         p + 12, cli->serverzone);
 103                                 job.size = IVAL(p,16);
 104                                 fstrcpy(job.name,fix_char_ptr(SVAL(p,24),
 105                                                               converter,
 106                                                               rdata, rdrcnt));
 107                                 fn(&job);
 108                                 p += 28;
 109                         }
 110                 }
 111         }
 112
 113         /* If any parameters or data were returned, free the storage. */
 114         SAFE_FREE(rparam);
 115         SAFE_FREE(rdata);
 116
 117         return i;
 118 }
 119
 120 /****************************************************************************
 121   cancel a print job
 122   ****************************************************************************/
 123
 124 int cli_printjob_del(struct cli_state *cli, int job)
 125 {
 126         char *rparam = NULL;
 127         char *rdata = NULL;
 128         char *p;
 129         unsigned int rdrcnt,rprcnt;
 130         int ret = -1;
 131         char param[1024];
 132
 133         memset(param,'\0',sizeof(param));
 134
 135         p = param;
 136         SSVAL(p,0,81);          /* DosPrintJobDel() */
 137         p += 2;
 138         safe_strcpy_base(p,"W", param,sizeof(param));
 139         p = skip_string(param,sizeof(param),p);
 140         safe_strcpy_base(p,"", param,sizeof(param));
 141         p = skip_string(param,sizeof(param),p);
 142         SSVAL(p,0,job);
 143         p += 2;
 144
 145         if (cli_api(cli,
 146                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
 147                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
 148                     &rparam, &rprcnt,                /* return params, length */
 149                     &rdata, &rdrcnt)) {               /* return data, length */
 150                 ret = SVAL(rparam,0);
 151         }
 152
 153         SAFE_FREE(rparam);
 154         SAFE_FREE(rdata);
 155
 156         return ret;
 157 }
 158
 159
 160 /****************************************************************************
 161  Open a spool file
 162 ****************************************************************************/
 163
 164 int cli_spl_open(struct cli_state *cli, const char *fname, int flags, int share_mode)
 165 {
 166         char *p;
 167         unsigned openfn=0;
 168         unsigned accessmode=0;
 169
 170         if (flags & O_CREAT)
 171                 openfn |= (1<<4);
 172         if (!(flags & O_EXCL)) {
 173                 if (flags & O_TRUNC)
 174                         openfn |= (1<<1);
 175                 else
 176                         openfn |= (1<<0);
 177         }
 178
 179         accessmode = (share_mode<<4);
 180
 181         if ((flags & O_ACCMODE) == O_RDWR) {
 182                 accessmode |= 2;
 183         } else if ((flags & O_ACCMODE) == O_WRONLY) {
 184                 accessmode |= 1;
 185         }
 186
 187 #if defined(O_SYNC)
 188         if ((flags & O_SYNC) == O_SYNC) {
 189                 accessmode |= (1<<14);
 190         }
 191 #endif /* O_SYNC */
 192
 193         if (share_mode == DENY_FCB) {
 194                 accessmode = 0xFF;
 195         }
 196
 197         memset(cli->outbuf,'\0',smb_size);
 198         memset(cli->inbuf,'\0',smb_size);
 199
 200         cli_set_message(cli->outbuf,15,0,True);
 201
 202         SCVAL(cli->outbuf,smb_com,SMBsplopen);
 203         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 204         cli_setup_packet(cli);
 205
 206         SSVAL(cli->outbuf,smb_vwv0,0xFF);
 207         SSVAL(cli->outbuf,smb_vwv2,0);  /* no additional info */
 208         SSVAL(cli->outbuf,smb_vwv3,accessmode);
 209         SSVAL(cli->outbuf,smb_vwv4,aSYSTEM | aHIDDEN);
 210         SSVAL(cli->outbuf,smb_vwv5,0);
 211         SSVAL(cli->outbuf,smb_vwv8,openfn);
 212
 213         if (cli->use_oplocks) {
 214                 /* if using oplocks then ask for a batch oplock via
 215                    core and extended methods */
 216                 SCVAL(cli->outbuf,smb_flg, CVAL(cli->outbuf,smb_flg)|
 217                         FLAG_REQUEST_OPLOCK|FLAG_REQUEST_BATCH_OPLOCK);
 218                 SSVAL(cli->outbuf,smb_vwv2,SVAL(cli->outbuf,smb_vwv2) | 6);
 219         }
 220
 221         p = smb_buf(cli->outbuf);
 222         p += clistr_push(cli, p, fname, -1, STR_TERMINATE);
 223
 224         cli_setup_bcc(cli, p);
 225
 226         cli_send_smb(cli);
 227         if (!cli_receive_smb(cli)) {
 228                 return -1;
 229         }
 230
 231         if (cli_is_error(cli)) {
 232                 return -1;
 233         }
 234
 235         return SVAL(cli->inbuf,smb_vwv2);
 236 }
 237
 238 /****************************************************************************
 239  Close a file.
 240 ****************************************************************************/
 241
 242 bool cli_spl_close(struct cli_state *cli, uint16_t fnum)
 243 {
 244         memset(cli->outbuf,'\0',smb_size);
 245         memset(cli->inbuf,'\0',smb_size);
 246
 247         cli_set_message(cli->outbuf,3,0,True);
 248
 249         SCVAL(cli->outbuf,smb_com,SMBsplclose);
 250         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 251         cli_setup_packet(cli);
 252
 253         SSVAL(cli->outbuf,smb_vwv0,fnum);
 254         SIVALS(cli->outbuf,smb_vwv1,-1);
 255
 256         cli_send_smb(cli);
 257         if (!cli_receive_smb(cli)) {
 258                 return False;
 259         }
 260
 261         return !cli_is_error(cli);
 262 }