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  1. /*
  2.  * Copyright (c) 2009 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup getvc GetVC
  30.  * @brief Console initialization task.
  31.  * @{
  32.  */
  33. /**
  34.  * @file
  35.  */
  36.  
  37. #include <sys/types.h>
  38. #include <unistd.h>
  39. #include <stdio.h>
  40. #include <task.h>
  41. #include "version.h"
  42.  
  43. static void usage(void)
  44. {
  45.     printf("Usage: getvc <device> <path>\n");
  46. }
  47.  
  48. static void closeall(void)
  49. {
  50.     fclose(stdin);
  51.     fclose(stdout);
  52.     fclose(stderr);
  53.    
  54.     close(0);
  55.     close(1);
  56.     close(2);
  57. }
  58.  
  59. static task_id_t spawn(char *fname)
  60. {
  61.     char *argv[2];
  62.    
  63.     argv[0] = fname;
  64.     argv[1] = NULL;
  65.    
  66.     task_id_t id = task_spawn(fname, argv);
  67.    
  68.     if (id == 0)
  69.         printf("Error spawning %s\n", fname);
  70.    
  71.     return id;
  72. }
  73.  
  74. int main(int argc, char *argv[])
  75. {
  76.     task_exit_t texit;
  77.     int retval;
  78.  
  79.     if (argc < 3) {
  80.         usage();
  81.         return -1;
  82.     }
  83.    
  84.     closeall();
  85.    
  86.     stdin = fopen(argv[1], "r");
  87.     stdout = fopen(argv[1], "w");
  88.     stderr = fopen(argv[1], "w");
  89.  
  90.     /*
  91.      * FIXME: fopen() should actually detect that we are opening a console
  92.      * and it should set line-buffering mode automatically.
  93.      */
  94.     setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
  95.    
  96.     if ((stdin == NULL)
  97.         || (stdout == NULL)
  98.         || (stderr == NULL))
  99.         return -2;
  100.    
  101.     version_print(argv[1]);
  102.     task_id_t id = spawn(argv[2]);
  103.     task_wait(id, &texit, &retval);
  104.    
  105.     return 0;
  106. }
  107.  
  108. /** @}
  109.  */
  110.