source/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         if (datap == 0) {
  31                 /* turn NULL pointers into zero length strings */
  32                 return "";
  33         } else {
  34                 unsigned int offset = datap - converter;
  35
  36                 if (offset >= rdrcnt) {
  37                         DEBUG(1,("bad char ptr: datap=%u, converter=%u rdrcnt=%d>",
  38                                  datap, converter, rdrcnt));
  39                         return "<ERROR>";
  40                 } else {
  41                         return &rdata[offset];
  42                 }
  43         }
  44 }
  45
  46 /****************************************************************************
  47 call fn() on each entry in a print queue
  48 ****************************************************************************/
  49
  50 int cli_print_queue(struct cli_state *cli,
  51                     void (*fn)(struct print_job_info *))
  52 {
  53         char *rparam = NULL;
  54         char *rdata = NULL;
  55         char *p;
  56         unsigned int rdrcnt, rprcnt;
  57         char param[1024];
  58         int result_code=0;
  59         int i = -1;
  60
  61         memset(param,'\0',sizeof(param));
  62
  63         p = param;
  64         SSVAL(p,0,76);         /* API function number 76 (DosPrintJobEnum) */
  65         p += 2;
  66         safe_strcpy_base(p,"zWrLeh", param, sizeof(param));   /* parameter description? */
  67         p = skip_string(param,sizeof(param),p);
  68         safe_strcpy_base(p,"WWzWWDDzz", param, sizeof(param));  /* returned data format */
  69         p = skip_string(param,sizeof(param),p);
  70         safe_strcpy_base(p,cli->share, param, sizeof(param));    /* name of queue */
  71         p = skip_string(param,sizeof(param),p);
  72         SSVAL(p,0,2);   /* API function level 2, PRJINFO_2 data structure */
  73         SSVAL(p,2,1000); /* size of bytes of returned data buffer */
  74         p += 4;
  75         safe_strcpy_base(p,"", param,sizeof(param));   /* subformat */
  76         p = skip_string(param,sizeof(param),p);
  77
  78         DEBUG(4,("doing cli_print_queue for %s\n", cli->share));
  79
  80         if (cli_api(cli,
  81                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
  82                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
  83                     &rparam, &rprcnt,                /* return params, length */
  84                     &rdata, &rdrcnt)) {               /* return data, length */
  85                 int converter;
  86                 result_code = SVAL(rparam,0);
  87                 converter = SVAL(rparam,2);       /* conversion factor */
  88
  89                 if (result_code == 0) {
  90                         struct print_job_info job;
  91
  92                         p = rdata;
  93
  94                         for (i = 0; i < SVAL(rparam,4); ++i) {
  95                                 job.id = SVAL(p,0);
  96                                 job.priority = SVAL(p,2);
  97                                 fstrcpy(job.user,
  98                                         fix_char_ptr(SVAL(p,4), converter,
  99                                                      rdata, rdrcnt));
 100                                 job.t = cli_make_unix_date3(cli, p + 12);
 101                                 job.size = IVAL(p,16);
 102                                 fstrcpy(job.name,fix_char_ptr(SVAL(p,24),
 103                                                               converter,
 104                                                               rdata, rdrcnt));
 105                                 fn(&job);
 106                                 p += 28;
 107                         }
 108                 }
 109         }
 110
 111         /* If any parameters or data were returned, free the storage. */
 112         SAFE_FREE(rparam);
 113         SAFE_FREE(rdata);
 114
 115         return i;
 116 }
 117
 118 /****************************************************************************
 119   cancel a print job
 120   ****************************************************************************/
 121
 122 int cli_printjob_del(struct cli_state *cli, int job)
 123 {
 124         char *rparam = NULL;
 125         char *rdata = NULL;
 126         char *p;
 127         unsigned int rdrcnt,rprcnt;
 128         int ret = -1;
 129         char param[1024];
 130
 131         memset(param,'\0',sizeof(param));
 132
 133         p = param;
 134         SSVAL(p,0,81);          /* DosPrintJobDel() */
 135         p += 2;
 136         safe_strcpy_base(p,"W", param,sizeof(param));
 137         p = skip_string(param,sizeof(param),p);
 138         safe_strcpy_base(p,"", param,sizeof(param));
 139         p = skip_string(param,sizeof(param),p);
 140         SSVAL(p,0,job);
 141         p += 2;
 142
 143         if (cli_api(cli,
 144                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
 145                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
 146                     &rparam, &rprcnt,                /* return params, length */
 147                     &rdata, &rdrcnt)) {               /* return data, length */
 148                 ret = SVAL(rparam,0);
 149         }
 150
 151         SAFE_FREE(rparam);
 152         SAFE_FREE(rdata);
 153
 154         return ret;
 155 }
 156
 157
 158 /****************************************************************************
 159  Open a spool file
 160 ****************************************************************************/
 161
 162 int cli_spl_open(struct cli_state *cli, const char *fname, int flags, int share_mode)
 163 {
 164         char *p;
 165         unsigned openfn=0;
 166         unsigned accessmode=0;
 167
 168         if (flags & O_CREAT)
 169                 openfn |= (1<<4);
 170         if (!(flags & O_EXCL)) {
 171                 if (flags & O_TRUNC)
 172                         openfn |= (1<<1);
 173                 else
 174                         openfn |= (1<<0);
 175         }
 176
 177         accessmode = (share_mode<<4);
 178
 179         if ((flags & O_ACCMODE) == O_RDWR) {
 180                 accessmode |= 2;
 181         } else if ((flags & O_ACCMODE) == O_WRONLY) {
 182                 accessmode |= 1;
 183         }
 184
 185 #if defined(O_SYNC)
 186         if ((flags & O_SYNC) == O_SYNC) {
 187                 accessmode |= (1<<14);
 188         }
 189 #endif /* O_SYNC */
 190
 191         if (share_mode == DENY_FCB) {
 192                 accessmode = 0xFF;
 193         }
 194
 195         memset(cli->outbuf,'\0',smb_size);
 196         memset(cli->inbuf,'\0',smb_size);
 197
 198         cli_set_message(cli->outbuf,15,0,True);
 199
 200         SCVAL(cli->outbuf,smb_com,SMBsplopen);
 201         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 202         cli_setup_packet(cli);
 203
 204         SSVAL(cli->outbuf,smb_vwv0,0xFF);
 205         SSVAL(cli->outbuf,smb_vwv2,0);  /* no additional info */
 206         SSVAL(cli->outbuf,smb_vwv3,accessmode);
 207         SSVAL(cli->outbuf,smb_vwv4,aSYSTEM | aHIDDEN);
 208         SSVAL(cli->outbuf,smb_vwv5,0);
 209         SSVAL(cli->outbuf,smb_vwv8,openfn);
 210
 211         if (cli->use_oplocks) {
 212                 /* if using oplocks then ask for a batch oplock via
 213                    core and extended methods */
 214                 SCVAL(cli->outbuf,smb_flg, CVAL(cli->outbuf,smb_flg)|
 215                         FLAG_REQUEST_OPLOCK|FLAG_REQUEST_BATCH_OPLOCK);
 216                 SSVAL(cli->outbuf,smb_vwv2,SVAL(cli->outbuf,smb_vwv2) | 6);
 217         }
 218
 219         p = smb_buf(cli->outbuf);
 220         p += clistr_push(cli, p, fname, -1, STR_TERMINATE);
 221
 222         cli_setup_bcc(cli, p);
 223
 224         cli_send_smb(cli);
 225         if (!cli_receive_smb(cli)) {
 226                 return -1;
 227         }
 228
 229         if (cli_is_error(cli)) {
 230                 return -1;
 231         }
 232
 233         return SVAL(cli->inbuf,smb_vwv2);
 234 }
 235
 236 /****************************************************************************
 237  Close a file.
 238 ****************************************************************************/
 239
 240 bool cli_spl_close(struct cli_state *cli, int fnum)
 241 {
 242         memset(cli->outbuf,'\0',smb_size);
 243         memset(cli->inbuf,'\0',smb_size);
 244
 245         cli_set_message(cli->outbuf,3,0,True);
 246
 247         SCVAL(cli->outbuf,smb_com,SMBsplclose);
 248         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 249         cli_setup_packet(cli);
 250
 251         SSVAL(cli->outbuf,smb_vwv0,fnum);
 252         SIVALS(cli->outbuf,smb_vwv1,-1);
 253
 254         cli_send_smb(cli);
 255         if (!cli_receive_smb(cli)) {
 256                 return False;
 257         }
 258
 259         return !cli_is_error(cli);
 260 }