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