Subversion Repositories HelenOS

Rev

Rev 3265 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
  2.  * All rights reserved.
  3.  *
  4.  * Redistribution and use in source and binary forms, with or without
  5.  * modification, are permitted provided that the following conditions are met:
  6.  *
  7.  * Redistributions of source code must retain the above copyright notice, this
  8.  * list of conditions and the following disclaimer.
  9.  *
  10.  * Redistributions in binary form must reproduce the above copyright notice,
  11.  * this list of conditions and the following disclaimer in the documentation
  12.  * and/or other materials provided with the distribution.
  13.  *
  14.  * Neither the name of the original program's authors nor the names of its
  15.  * contributors may be used to endorse or promote products derived from this
  16.  * software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19.  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21.  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28.  * POSSIBILITY OF SUCH DAMAGE.
  29.  */
  30.  
  31. /* Almost identical (for now) to mod_cmds.c , however this will not be the case
  32.  * soon as builtin_t is going to grow way beyond module_t */
  33.  
  34. #include <stdio.h>
  35. #include <stdlib.h>
  36. #include <string.h>
  37. #include "errors.h"
  38. #include "cmds.h"
  39. #include "builtin_aliases.h"
  40.  
  41. extern volatile unsigned int cli_interactive;
  42.  
  43. int builtin_is_restricted(int pos)
  44. {
  45.     builtin_t *cmd = builtins;
  46.     cmd += pos;
  47.  
  48.     if (cli_interactive && cmd->restricted <= 0)
  49.         return 0;
  50.     if (!cli_interactive && cmd->restricted >= 0)
  51.         return 0;
  52.  
  53.     return 1;
  54. }
  55.  
  56. int is_builtin(const char *command)
  57. {
  58.     builtin_t *cmd;
  59.     unsigned int i = 0;
  60.  
  61.     if (NULL == command)
  62.         return -2;
  63.  
  64.     for (cmd = builtins; cmd->name != NULL; cmd++, i++) {
  65.         if (!strcmp(cmd->name, command))
  66.             return i;
  67.     }
  68.  
  69.     return -1;
  70. }
  71.  
  72. int is_builtin_alias(const char *command)
  73. {
  74.     unsigned int i = 0;
  75.  
  76.     if (NULL == command)
  77.         return -1;
  78.  
  79.     for(i=0; builtin_aliases[i] != NULL; i+=2) {
  80.         if (!strcmp(builtin_aliases[i], command))
  81.             return 1;
  82.     }
  83.  
  84.     return 0;
  85. }
  86.  
  87. char *alias_for_builtin(const char *command)
  88. {
  89.     unsigned int i = 0;
  90.  
  91.     if (NULL == command)
  92.         return (char *)NULL;
  93.  
  94.     for(i=0; builtin_aliases[i] != NULL; i++) {
  95.         if (!strcmp(builtin_aliases[i], command))
  96.             return (char *)builtin_aliases[++i];
  97.         i++;
  98.     }
  99.  
  100.     return (char *)NULL;
  101. }
  102.  
  103. int help_builtin(int builtin, unsigned int extended)
  104. {
  105.     builtin_t *cmd = builtins;
  106.  
  107.     cmd += builtin;
  108.  
  109.     if (NULL != cmd->help) {
  110.         cmd->help(extended);
  111.         return CL_EOK;
  112.     } else
  113.         return CL_ENOENT;
  114. }
  115.  
  116. int run_builtin(int builtin, char *argv[], cliuser_t *usr)
  117. {
  118.     builtin_t *cmd = builtins;
  119.  
  120.     cmd += builtin;
  121.  
  122.     if (NULL != cmd->entry)
  123.         return((int)cmd->entry(argv, usr));
  124.  
  125.     return CL_ENOENT;
  126. }
  127.