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 2 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, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #define NO_SYSLOG
  22
  23 #include "includes.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         if (datap == 0) {       /* turn NULL pointers into zero length strings */
  34                 return "";
  35         } else {
  36                 unsigned int offset = datap - converter;
  37
  38                 if (offset >= rdrcnt) {
  39                         DEBUG(1,("bad char ptr: datap=%u, converter=%u rdrcnt=%d>",
  40                                  datap, converter, rdrcnt));
  41                         return "<ERROR>";
  42                 } else {
  43                         return &rdata[offset];
  44                 }
  45         }
  46 }
  47
  48
  49 /****************************************************************************
  50 call fn() on each entry in a print queue
  51 ****************************************************************************/
  52 int cli_print_queue(struct cli_state *cli,
  53                     void (*fn)(struct print_job_info *))
  54 {
  55         char *rparam = NULL;
  56         char *rdata = NULL;
  57         char *p;
  58         unsigned int rdrcnt, rprcnt;
  59         pstring param;
  60         int result_code=0;
  61         int i = -1;
  62
  63         memset(param,'\0',sizeof(param));
  64
  65         p = param;
  66         SSVAL(p,0,76);         /* API function number 76 (DosPrintJobEnum) */
  67         p += 2;
  68         pstrcpy_base(p,"zWrLeh", param);   /* parameter description? */
  69         p = skip_string(p,1);
  70         pstrcpy_base(p,"WWzWWDDzz", param);  /* returned data format */
  71         p = skip_string(p,1);
  72         pstrcpy_base(p,cli->share, param);    /* name of queue */
  73         p = skip_string(p,1);
  74         SSVAL(p,0,2);   /* API function level 2, PRJINFO_2 data structure */
  75         SSVAL(p,2,1000); /* size of bytes of returned data buffer */
  76         p += 4;
  77         pstrcpy_base(p,"", param);   /* subformat */
  78         p = skip_string(p,1);
  79
  80         DEBUG(4,("doing cli_print_queue for %s\n", cli->share));
  81
  82         if (cli_api(cli,
  83                     param, PTR_DIFF(p,param), 1024,  /* Param, length, maxlen */
  84                     NULL, 0, CLI_BUFFER_SIZE,            /* data, length, maxlen */
  85                     &rparam, &rprcnt,                /* return params, length */
  86                     &rdata, &rdrcnt)) {               /* return data, length */
  87                 int converter;
  88                 result_code = SVAL(rparam,0);
  89                 converter = SVAL(rparam,2);       /* conversion factor */
  90
  91                 if (result_code == 0) {
  92                         struct print_job_info job;
  93
  94                         p = rdata;
  95
  96                         for (i = 0; i < SVAL(rparam,4); ++i) {
  97                                 job.id = SVAL(p,0);
  98                                 job.priority = SVAL(p,2);
  99                                 fstrcpy(job.user,
 100                                         fix_char_ptr(SVAL(p,4), converter,
 101                                                      rdata, rdrcnt));
 102                                 job.t = make_unix_date3(p + 12);
 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 int cli_printjob_del(struct cli_state *cli, int job)
 124 {
 125         char *rparam = NULL;
 126         char *rdata = NULL;
 127         char *p;
 128         unsigned int rdrcnt,rprcnt;
 129         int 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_base(p,"W", param);
 138         p = skip_string(p,1);
 139         pstrcpy_base(p,"", param);
 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