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 #include "libsmb/libsmb.h"
  22 #include "libsmb/clirap.h"
  23 #include "../libcli/smb/smbXcli_base.h"
  24
  25 /*****************************************************************************
  26  Convert a character pointer in a cli_call_api() response to a form we can use.
  27  This function contains code to prevent core dumps if the server returns
  28  invalid data.
  29 *****************************************************************************/
  30 static const char *fix_char_ptr(unsigned int datap, unsigned int converter,
  31                           char *rdata, int rdrcnt)
  32 {
  33         unsigned int offset;
  34
  35         if (datap == 0) {
  36                 /* turn NULL pointers into zero length strings */
  37                 return "";
  38         }
  39
  40         offset = datap - converter;
  41
  42         if (offset >= rdrcnt) {
  43                 DEBUG(1,("bad char ptr: datap=%u, converter=%u rdrcnt=%d>",
  44                          datap, converter, rdrcnt));
  45                 return "<ERROR>";
  46         }
  47         return &rdata[offset];
  48 }
  49
  50 /****************************************************************************
  51 call fn() on each entry in a print queue
  52 ****************************************************************************/
  53
  54 int cli_print_queue(struct cli_state *cli,
  55                     void (*fn)(struct print_job_info *))
  56 {
  57         char *rparam = NULL;
  58         char *rdata = NULL;
  59         char *p;
  60         unsigned int rdrcnt, rprcnt;
  61         char param[1024];
  62         int result_code=0;
  63         int i = -1;
  64
  65         memset(param,'\0',sizeof(param));
  66
  67         p = param;
  68         SSVAL(p,0,76);         /* API function number 76 (DosPrintJobEnum) */
  69         p += 2;
  70         strlcpy_base(p,"zWrLeh", param, sizeof(param));   /* parameter description? */
  71         p = skip_string(param,sizeof(param),p);
  72         strlcpy_base(p,"WWzWWDDzz", param, sizeof(param));  /* returned data format */
  73         p = skip_string(param,sizeof(param),p);
  74         strlcpy_base(p,cli->share, param, sizeof(param));    /* name of queue */
  75         p = skip_string(param,sizeof(param),p);
  76         SSVAL(p,0,2);   /* API function level 2, PRJINFO_2 data structure */
  77         SSVAL(p,2,1000); /* size of bytes of returned data buffer */
  78         p += 4;
  79         strlcpy_base(p,"", param,sizeof(param));   /* subformat */
  80         p = skip_string(param,sizeof(param),p);
  81
  82         DEBUG(4,("doing cli_print_queue for %s\n", cli->share));
  83
  84         if (cli_api(cli,
  85                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
  86                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
  87                     &rparam, &rprcnt,                /* return params, length */
  88                     &rdata, &rdrcnt)) {               /* return data, length */
  89                 int converter;
  90                 result_code = SVAL(rparam,0);
  91                 converter = SVAL(rparam,2);       /* conversion factor */
  92
  93                 if (result_code == 0) {
  94                         struct print_job_info job;
  95
  96                         p = rdata;
  97
  98                         for (i = 0; i < SVAL(rparam,4); ++i) {
  99                                 job.id = SVAL(p,0);
 100                                 job.priority = SVAL(p,2);
 101                                 fstrcpy(job.user,
 102                                         fix_char_ptr(SVAL(p,4), converter,
 103                                                      rdata, rdrcnt));
 104                                 job.t = make_unix_date3(
 105                                         p + 12, smb1cli_conn_server_time_zone(cli->conn));
 106                                 job.size = IVAL(p,16);
 107                                 fstrcpy(job.name,fix_char_ptr(SVAL(p,24),
 108                                                               converter,
 109                                                               rdata, rdrcnt));
 110                                 fn(&job);
 111                                 p += 28;
 112                         }
 113                 }
 114         }
 115
 116         /* If any parameters or data were returned, free the storage. */
 117         SAFE_FREE(rparam);
 118         SAFE_FREE(rdata);
 119
 120         return i;
 121 }
 122
 123 /****************************************************************************
 124   cancel a print job
 125   ****************************************************************************/
 126
 127 int cli_printjob_del(struct cli_state *cli, int job)
 128 {
 129         char *rparam = NULL;
 130         char *rdata = NULL;
 131         char *p;
 132         unsigned int rdrcnt,rprcnt;
 133         int ret = -1;
 134         char param[1024];
 135
 136         memset(param,'\0',sizeof(param));
 137
 138         p = param;
 139         SSVAL(p,0,81);          /* DosPrintJobDel() */
 140         p += 2;
 141         strlcpy_base(p,"W", param,sizeof(param));
 142         p = skip_string(param,sizeof(param),p);
 143         strlcpy_base(p,"", param,sizeof(param));
 144         p = skip_string(param,sizeof(param),p);
 145         SSVAL(p,0,job);
 146         p += 2;
 147
 148         if (cli_api(cli,
 149                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
 150                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
 151                     &rparam, &rprcnt,                /* return params, length */
 152                     &rdata, &rdrcnt)) {               /* return data, length */
 153                 ret = SVAL(rparam,0);
 154         }
 155
 156         SAFE_FREE(rparam);
 157         SAFE_FREE(rdata);
 158
 159         return ret;
 160 }