backend/ieee1394.c

   1 /*
   2  * "$Id: ieee1394.c 6649 2007-07-11 21:46:42Z mike $"
   3  *
   4  *   IEEE-1394 backend for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007 by Apple Inc.
   7  *   Copyright 2002 by Easy Software Products, all rights reserved.
   8  *
   9  *   Redistribution and use in source and binary forms, with or
  10  *   without modification, are permitted provided that the
  11  *   following conditions are met:
  12  *
  13  *     1. Redistributions of source code must retain the above
  14  *        copyright notice, this list of conditions and the
  15  *        following disclaimer.
  16  *
  17  *     2. Redistributions in binary form must reproduce the
  18  *        above copyright notice, this list of conditions and
  19  *        the following disclaimer in the documentation and/or
  20  *        other materials provided with the distribution.
  21  *
  22  *     3. All advertising materials mentioning features or use
  23  *        of this software must display the following
  24  *        acknowledgement:
  25  *
  26  *          This product includes software developed by Easy
  27  *          Software Products.
  28  *
  29  *     4. The name of Easy Software Products may not be used to
  30  *        endorse or promote products derived from this software
  31  *        without specific prior written permission.
  32  *
  33  *   THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS
  34  *   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
  35  *   BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  36  *   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  37  *   DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
  38  *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  39  *   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  40  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  41  *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  42  *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  43  *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  44  *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  45  *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  46  *   DAMAGE.
  47  *
  48  * Contents:
  49  *
  50  *   main()         - Send a file to the printer.
  51  *   list_devices() - List all known printer devices...
  52  */
  53
  54 /*
  55  * Include necessary headers.
  56  */
  57
  58 #include "ieee1394.h"
  59
  60
  61 /*
  62  * Local functions...
  63  */
  64
  65 void    list_devices(void);
  66
  67
  68 /*
  69  * 'main()' - Send a file to the printer.
  70  *
  71  * Usage:
  72  *
  73  *    printer-uri job-id user title copies options [file]
  74  */
  75
  76 int                     /* O - Exit status */
  77 main(int  argc,         /* I - Number of command-line arguments (6 or 7) */
  78      char *argv[])      /* I - Command-line arguments */
  79 {
  80   ieee1394_dev_t dev;           /* Printer device */
  81   int           fp;             /* Print file */
  82   int           copies;         /* Number of copies to print */
  83   int           rbytes;         /* Number of bytes read from device */
  84   size_t        nbytes,         /* Number of bytes read from file */
  85                 tbytes;         /* Total number of bytes written */
  86   char          buffer[8192];   /* Input/output buffer */
  87 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
  88   struct sigaction action;      /* Actions for POSIX signals */
  89 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
  90
  91
  92  /*
  93   * Make sure status messages are not buffered...
  94   */
  95
  96   setbuf(stderr, NULL);
  97
  98  /*
  99   * Check command-line...
 100   */
 101
 102   if (argc == 1)
 103   {
 104     list_devices();
 105
 106     return (0);
 107   }
 108   else if (argc < 6 || argc > 7)
 109   {
 110     fprintf(stderr, "Usage: %s job-id user title copies options [file]\n",
 111             argv[0]);
 112     return (1);
 113   }
 114
 115  /*
 116   * If we have 7 arguments, print the file named on the command-line.
 117   * Otherwise, send stdin instead...
 118   */
 119
 120   if (argc == 6)
 121   {
 122     fp     = 0;
 123     copies = 1;
 124   }
 125   else
 126   {
 127    /*
 128     * Try to open the print file...
 129     */
 130
 131     if ((fp = open(argv[6], O_RDONLY)) < 0)
 132     {
 133       perror("ERROR: unable to open print file");
 134       return (1);
 135     }
 136
 137     copies = atoi(argv[4]);
 138   }
 139
 140  /*
 141   * Try to open the printer device...
 142   */
 143
 144   fputs("STATE: +connecting-to-device\n", stderr);
 145
 146   do
 147   {
 148     if ((dev = ieee1394_open(argv[0])) == NULL)
 149     {
 150       fputs("INFO: Firewire printer busy; will retry in 30 seconds...\n", stderr);
 151       sleep(30);
 152     }
 153   }
 154   while (dev == NULL);
 155
 156   fputs("STATE: -connecting-to-device\n", stderr);
 157
 158  /*
 159   * Now that we are "connected" to the port, ignore SIGTERM so that we
 160   * can finish out any page data the driver sends (e.g. to eject the
 161   * current page...  Only ignore SIGTERM if we are printing data from
 162   * stdin (otherwise you can't cancel raw jobs...)
 163   */
 164
 165   if (argc < 7)
 166   {
 167 #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
 168     sigset(SIGTERM, SIG_IGN);
 169 #elif defined(HAVE_SIGACTION)
 170     memset(&action, 0, sizeof(action));
 171
 172     sigemptyset(&action.sa_mask);
 173     action.sa_handler = SIG_IGN;
 174     sigaction(SIGTERM, &action, NULL);
 175 #else
 176     signal(SIGTERM, SIG_IGN);
 177 #endif /* HAVE_SIGSET */
 178   }
 179
 180  /*
 181   * Finally, send the print file...
 182   */
 183
 184   while (copies > 0)
 185   {
 186     copies --;
 187
 188     if (fp != 0)
 189     {
 190       fputs("PAGE: 1 1\n", stderr);
 191       lseek(fp, 0, SEEK_SET);
 192     }
 193
 194     tbytes = 0;
 195     while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0)
 196     {
 197      /*
 198       * Write the print data to the printer...
 199       */
 200
 201       tbytes += nbytes;
 202
 203       if (ieee1394_write(dev, buffer, nbytes) < 0)
 204       {
 205         perror("ERROR: Unable to send print file to printer");
 206         break;
 207       }
 208
 209       if ((rbytes = ieee1394_read(dev, buffer, sizeof(buffer))) > 0)
 210         fprintf(stderr, "INFO: Read %d bytes from printer...\n", rbytes);
 211
 212       if (argc > 6)
 213         fprintf(stderr, "INFO: Sending print file, %lu bytes...\n",
 214                 (unsigned long)tbytes);
 215     }
 216   }
 217
 218  /*
 219   * Close the printer device and input file and return...
 220   */
 221
 222   ieee1394_close(dev);
 223
 224   if (fp != 0)
 225     close(fp);
 226
 227   fputs("INFO: Ready to print.\n", stderr);
 228
 229   return (0);
 230 }
 231
 232
 233 /*
 234  * 'list_devices()' - List all known devices...
 235  */
 236
 237 void
 238 list_devices(void)
 239 {
 240   int                   i,              /* Looping var */
 241                         num_info;       /* Number of devices */
 242   ieee1394_info_t       *info;          /* Devices... */
 243
 244
 245  /*
 246   * Get the available devices...
 247   */
 248
 249   info = ieee1394_list(&num_info);
 250
 251  /*
 252   * List them as needed...
 253   */
 254
 255   if (num_info > 0)
 256   {
 257     for (i = 0; i < num_info; i ++)
 258       printf("direct %s \"%s\" \"%s\"\n", info[i].uri,
 259              info[i].make_model, info[i].description);
 260
 261     free(info);
 262   }
 263 }
 264
 265
 266 /*
 267  * End of "$Id: ieee1394.c 6649 2007-07-11 21:46:42Z mike $".
 268  */