source: mainline/uspace/app/bdsh/cmds/builtin_cmds.c@ ee79df74

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ee79df74 was d752cf4, checked in by Tim Post <echo@…>, 17 years ago

Eliminate 'restrict' from command structure, get rid of needless aliases.
Order of search is builtin → module → external, there is no need to
restrict commands to (non)interative shells only any longer.

  • Property mode set to 100644
File size: 3.0 KB
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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
41extern volatile unsigned int cli_interactive;
42
43int is_builtin(const char *command)
44{
45 builtin_t *cmd;
46 unsigned int i = 0;
47
48 if (NULL == command)
49 return -2;
50
51 for (cmd = builtins; cmd->name != NULL; cmd++, i++) {
52 if (!strcmp(cmd->name, command))
53 return i;
54 }
55
56 return -1;
57}
58
59int is_builtin_alias(const char *command)
60{
61 unsigned int i = 0;
62
63 if (NULL == command)
64 return -1;
65
66 for(i=0; builtin_aliases[i] != NULL; i+=2) {
67 if (!strcmp(builtin_aliases[i], command))
68 return 1;
69 }
70
71 return 0;
72}
73
74char *alias_for_builtin(const char *command)
75{
76 unsigned int i = 0;
77
78 if (NULL == command)
79 return (char *)NULL;
80
81 for(i=0; builtin_aliases[i] != NULL; i++) {
82 if (!strcmp(builtin_aliases[i], command))
83 return (char *)builtin_aliases[++i];
84 i++;
85 }
86
87 return (char *)NULL;
88}
89
90int help_builtin(int builtin, unsigned int extended)
91{
92 builtin_t *cmd = builtins;
93
94 cmd += builtin;
95
96 if (NULL != cmd->help) {
97 cmd->help(extended);
98 return CL_EOK;
99 } else
100 return CL_ENOENT;
101}
102
103int run_builtin(int builtin, char *argv[], cliuser_t *usr)
104{
105 builtin_t *cmd = builtins;
106
107 cmd += builtin;
108
109 if (NULL != cmd->entry)
110 return((int)cmd->entry(argv, usr));
111
112 return CL_ENOENT;
113}
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