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1 | This file is builtin.def, from which is created builtin.c. |
2 | It implements the builtin "builtin" in Bash. | |
3 | ||
3185942a | 4 | Copyright (C) 1987-2009 Free Software Foundation, Inc. |
726f6388 JA |
5 | |
6 | This file is part of GNU Bash, the Bourne Again SHell. | |
7 | ||
3185942a JA |
8 | Bash is free software: you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation, either version 3 of the License, or | |
11 | (at your option) any later version. | |
726f6388 | 12 | |
3185942a JA |
13 | Bash is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
726f6388 | 17 | |
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18 | You should have received a copy of the GNU General Public License |
19 | along with Bash. If not, see <http://www.gnu.org/licenses/>. | |
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20 | |
21 | $PRODUCES builtin.c | |
22 | ||
23 | $BUILTIN builtin | |
24 | $FUNCTION builtin_builtin | |
25 | $SHORT_DOC builtin [shell-builtin [arg ...]] | |
3185942a JA |
26 | Execute shell builtins. |
27 | ||
28 | Execute SHELL-BUILTIN with arguments ARGs without performing command | |
29 | lookup. This is useful when you wish to reimplement a shell builtin | |
30 | as a shell function, but need to execute the builtin within the function. | |
31 | ||
32 | Exit Status: | |
33 | Returns the exit status of SHELL-BUILTIN, or false if SHELL-BUILTIN is | |
34 | not a shell builtin.. | |
726f6388 | 35 | $END |
ccc6cda3 | 36 | #include <config.h> |
726f6388 | 37 | |
ccc6cda3 | 38 | #if defined (HAVE_UNISTD_H) |
cce855bc JA |
39 | # ifdef _MINIX |
40 | # include <sys/types.h> | |
41 | # endif | |
ccc6cda3 JA |
42 | # include <unistd.h> |
43 | #endif | |
726f6388 | 44 | |
ccc6cda3 | 45 | #include "../shell.h" |
726f6388 | 46 | #include "common.h" |
7117c2d2 | 47 | #include "bashgetopt.h" |
726f6388 JA |
48 | |
49 | extern char *this_command_name; | |
50 | ||
51 | /* Run the command mentioned in list directly, without going through the | |
52 | normal alias/function/builtin/filename lookup process. */ | |
ccc6cda3 | 53 | int |
726f6388 JA |
54 | builtin_builtin (list) |
55 | WORD_LIST *list; | |
56 | { | |
f73dda09 | 57 | sh_builtin_func_t *function; |
726f6388 JA |
58 | register char *command; |
59 | ||
7117c2d2 JA |
60 | if (no_options (list)) |
61 | return (EX_USAGE); | |
62 | list = loptend; /* skip over possible `--' */ | |
63 | ||
64 | if (list == 0) | |
726f6388 JA |
65 | return (EXECUTION_SUCCESS); |
66 | ||
7117c2d2 | 67 | command = list->word->word; |
726f6388 JA |
68 | #if defined (DISABLED_BUILTINS) |
69 | function = builtin_address (command); | |
70 | #else /* !DISABLED_BUILTINS */ | |
71 | function = find_shell_builtin (command); | |
72 | #endif /* !DISABLED_BUILTINS */ | |
73 | ||
74 | if (!function) | |
75 | { | |
b80f6443 | 76 | sh_notbuiltin (command); |
726f6388 JA |
77 | return (EXECUTION_FAILURE); |
78 | } | |
79 | else | |
80 | { | |
81 | this_command_name = command; | |
82 | list = list->next; | |
83 | return ((*function) (list)); | |
84 | } | |
85 | } |