source3/libsmb/cliprint.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 3.0
   4    client print routines
   5    Copyright (C) Andrew Tridgell 1994-1998
   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 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26 /*****************************************************************************
  27  Convert a character pointer in a cli_call_api() response to a form we can use.
  28  This function contains code to prevent core dumps if the server returns
  29  invalid data.
  30 *****************************************************************************/
  31 static char *fix_char_ptr(unsigned int datap, unsigned int converter,
  32                           char *rdata, int rdrcnt)
  33 {
  34         if (datap == 0) {       /* turn NULL pointers into zero length strings */
  35                 return "";
  36         } else {
  37                 unsigned int 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                 } else {
  44                         return &rdata[offset];
  45                 }
  46         }
  47 }
  48
  49
  50 /****************************************************************************
  51 call fn() on each entry in a print queue
  52 ****************************************************************************/
  53 int cli_print_queue(struct cli_state *cli,
  54                     void (*fn)(struct print_job_info *))
  55 {
  56         char *rparam = NULL;
  57         char *rdata = NULL;
  58         char *p;
  59         int rdrcnt, rprcnt;
  60         pstring param;
  61         int result_code=0;
  62         int i = -1;
  63
  64         memset(param,'\0',sizeof(param));
  65
  66         p = param;
  67         SSVAL(p,0,76);         /* API function number 76 (DosPrintJobEnum) */
  68         p += 2;
  69         pstrcpy(p,"zWrLeh");   /* parameter description? */
  70         p = skip_string(p,1);
  71         pstrcpy(p,"WWzWWDDzz");  /* returned data format */
  72         p = skip_string(p,1);
  73         pstrcpy(p,cli->share);    /* name of queue */
  74         p = skip_string(p,1);
  75         SSVAL(p,0,2);   /* API function level 2, PRJINFO_2 data structure */
  76         SSVAL(p,2,1000); /* size of bytes of returned data buffer */
  77         p += 4;
  78         pstrcpy(p,"");   /* subformat */
  79         p = skip_string(p,1);
  80
  81         DEBUG(4,("doing cli_print_queue for %s\n", cli->share));
  82
  83         if (cli_api(cli,
  84                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
  85                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
  86                     &rparam, &rprcnt,                /* return params, length */
  87                     &rdata, &rdrcnt)) {               /* return data, length */
  88                 int converter;
  89                 result_code = SVAL(rparam,0);
  90                 converter = SVAL(rparam,2);       /* conversion factor */
  91
  92                 if (result_code == 0) {
  93                         struct print_job_info job;
  94
  95                         p = rdata;
  96
  97                         for (i = 0; i < SVAL(rparam,4); ++i) {
  98                                 job.id = SVAL(p,0);
  99                                 job.priority = SVAL(p,2);
 100                                 fstrcpy(job.user,
 101                                         fix_char_ptr(SVAL(p,4), converter,
 102                                                      rdata, rdrcnt));
 103                                 job.t = make_unix_date3(p + 12);
 104                                 job.size = IVAL(p,16);
 105                                 fstrcpy(job.name,fix_char_ptr(SVAL(p,24),
 106                                                               converter,
 107                                                               rdata, rdrcnt));
 108                                 fn(&job);
 109                                 p += 28;
 110                         }
 111                 }
 112         }
 113
 114         /* If any parameters or data were returned, free the storage. */
 115         SAFE_FREE(rparam);
 116         SAFE_FREE(rdata);
 117
 118         return i;
 119 }
 120
 121 /****************************************************************************
 122   cancel a print job
 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         int rdrcnt,rprcnt, ret = -1;
 130         pstring param;
 131
 132         memset(param,'\0',sizeof(param));
 133
 134         p = param;
 135         SSVAL(p,0,81);          /* DosPrintJobDel() */
 136         p += 2;
 137         pstrcpy(p,"W");
 138         p = skip_string(p,1);
 139         pstrcpy(p,"");
 140         p = skip_string(p,1);
 141         SSVAL(p,0,job);
 142         p += 2;
 143
 144         if (cli_api(cli,
 145                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
 146                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
 147                     &rparam, &rprcnt,                /* return params, length */
 148                     &rdata, &rdrcnt)) {               /* return data, length */
 149                 ret = SVAL(rparam,0);
 150         }
 151
 152         SAFE_FREE(rparam);
 153         SAFE_FREE(rdata);
 154
 155         return ret;
 156 }
 157
 158