backend/ieee1394.c

   1 /*
   2  * "$Id: ieee1394.c 177 2006-06-21 00:20:03Z jlovell $"
   3  *
   4  *   IEEE-1394 backend for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2002 by Easy Software Products, all rights reserved.
   7  *
   8  *   Redistribution and use in source and binary forms, with or
   9  *   without modification, are permitted provided that the
  10  *   following conditions are met:
  11  *
  12  *     1. Redistributions of source code must retain the above
  13  *        copyright notice, this list of conditions and the
  14  *        following disclaimer.
  15  *
  16  *     2. Redistributions in binary form must reproduce the
  17  *        above copyright notice, this list of conditions and
  18  *        the following disclaimer in the documentation and/or
  19  *        other materials provided with the distribution.
  20  *
  21  *     3. All advertising materials mentioning features or use
  22  *        of this software must display the following
  23  *        acknowledgement:
  24  *
  25  *          This product includes software developed by Easy
  26  *          Software Products.
  27  *
  28  *     4. The name of Easy Software Products may not be used to
  29  *        endorse or promote products derived from this software
  30  *        without specific prior written permission.
  31  *
  32  *   THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS
  33  *   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  34  *   BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  35  *   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  36  *   DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
  37  *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  38  *   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  39  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  40  *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  41  *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  42  *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  43  *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  44  *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  45  *   DAMAGE.
  46  *
  47  * Contents:
  48  *
  49  *   main()         - Send a file to the printer.
  50  *   list_devices() - List all known printer devices...
  51  */
  52
  53 /*
  54  * Include necessary headers.
  55  */
  56
  57 #include "ieee1394.h"
  58
  59
  60 /*
  61  * Local functions...
  62  */
  63
  64 void    list_devices(void);
  65
  66
  67 /*
  68  * 'main()' - Send a file to the printer.
  69  *
  70  * Usage:
  71  *
  72  *    printer-uri job-id user title copies options [file]
  73  */
  74
  75 int                     /* O - Exit status */
  76 main(int  argc,         /* I - Number of command-line arguments (6 or 7) */
  77      char *argv[])      /* I - Command-line arguments */
  78 {
  79   ieee1394_dev_t dev;           /* Printer device */
  80   int           fp;             /* Print file */
  81   int           copies;         /* Number of copies to print */
  82   int           rbytes;         /* Number of bytes read from device */
  83   size_t        nbytes,         /* Number of bytes read from file */
  84                 tbytes;         /* Total number of bytes written */
  85   char          buffer[8192];   /* Input/output buffer */
  86 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
  87   struct sigaction action;      /* Actions for POSIX signals */
  88 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
  89
  90
  91  /*
  92   * Make sure status messages are not buffered...
  93   */
  94
  95   setbuf(stderr, NULL);
  96
  97  /*
  98   * Check command-line...
  99   */
 100
 101   if (argc == 1)
 102   {
 103     list_devices();
 104
 105     return (0);
 106   }
 107   else if (argc < 6 || argc > 7)
 108   {
 109     fprintf(stderr, "Usage: %s job-id user title copies options [file]\n",
 110             argv[0]);
 111     return (1);
 112   }
 113
 114  /*
 115   * If we have 7 arguments, print the file named on the command-line.
 116   * Otherwise, send stdin instead...
 117   */
 118
 119   if (argc == 6)
 120   {
 121     fp     = 0;
 122     copies = 1;
 123   }
 124   else
 125   {
 126    /*
 127     * Try to open the print file...
 128     */
 129
 130     if ((fp = open(argv[6], O_RDONLY)) < 0)
 131     {
 132       perror("ERROR: unable to open print file");
 133       return (1);
 134     }
 135
 136     copies = atoi(argv[4]);
 137   }
 138
 139  /*
 140   * Try to open the printer device...
 141   */
 142
 143   fputs("STATE: +connecting-to-device\n", stderr);
 144
 145   do
 146   {
 147     if ((dev = ieee1394_open(argv[0])) == NULL)
 148     {
 149       fputs("INFO: Firewire printer busy; will retry in 30 seconds...\n", stderr);
 150       sleep(30);
 151     }
 152   }
 153   while (dev == NULL);
 154
 155   fputs("STATE: -connecting-to-device\n", stderr);
 156
 157  /*
 158   * Now that we are "connected" to the port, ignore SIGTERM so that we
 159   * can finish out any page data the driver sends (e.g. to eject the
 160   * current page...  Only ignore SIGTERM if we are printing data from
 161   * stdin (otherwise you can't cancel raw jobs...)
 162   */
 163
 164   if (argc < 7)
 165   {
 166 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
 167     sigset(SIGTERM, SIG_IGN);
 168 #elif defined(HAVE_SIGACTION)
 169     memset(&action, 0, sizeof(action));
 170
 171     sigemptyset(&action.sa_mask);
 172     action.sa_handler = SIG_IGN;
 173     sigaction(SIGTERM, &action, NULL);
 174 #else
 175     signal(SIGTERM, SIG_IGN);
 176 #endif /* HAVE_SIGSET */
 177   }
 178
 179  /*
 180   * Finally, send the print file...
 181   */
 182
 183   while (copies > 0)
 184   {
 185     copies --;
 186
 187     if (fp != 0)
 188     {
 189       fputs("PAGE: 1 1\n", stderr);
 190       lseek(fp, 0, SEEK_SET);
 191     }
 192
 193     tbytes = 0;
 194     while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0)
 195     {
 196      /*
 197       * Write the print data to the printer...
 198       */
 199
 200       tbytes += nbytes;
 201
 202       if (ieee1394_write(dev, buffer, nbytes) < 0)
 203       {
 204         perror("ERROR: Unable to send print file to printer");
 205         break;
 206       }
 207
 208       if ((rbytes = ieee1394_read(dev, buffer, sizeof(buffer))) > 0)
 209         fprintf(stderr, "INFO: Read %d bytes from printer...\n", rbytes);
 210
 211       if (argc > 6)
 212         fprintf(stderr, "INFO: Sending print file, %lu bytes...\n",
 213                 (unsigned long)tbytes);
 214     }
 215   }
 216
 217  /*
 218   * Close the printer device and input file and return...
 219   */
 220
 221   ieee1394_close(dev);
 222
 223   if (fp != 0)
 224     close(fp);
 225
 226   fputs("INFO: Ready to print.\n", stderr);
 227
 228   return (0);
 229 }
 230
 231
 232 /*
 233  * 'list_devices()' - List all known devices...
 234  */
 235
 236 void
 237 list_devices(void)
 238 {
 239   int                   i,              /* Looping var */
 240                         num_info;       /* Number of devices */
 241   ieee1394_info_t       *info;          /* Devices... */
 242
 243
 244  /*
 245   * Get the available devices...
 246   */
 247
 248   info = ieee1394_list(&num_info);
 249
 250  /*
 251   * List them as needed...
 252   */
 253
 254   if (num_info > 0)
 255   {
 256     for (i = 0; i < num_info; i ++)
 257       printf("direct %s \"%s\" \"%s\"\n", info[i].uri,
 258              info[i].make_model, info[i].description);
 259
 260     free(info);
 261   }
 262 }
 263
 264
 265 /*
 266  * End of "$Id: ieee1394.c 177 2006-06-21 00:20:03Z jlovell $".
 267  */