| 1 | This file is builtin.def, from which is created builtin.c.
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| 2 | It implements the builtin "builtin" in Bash.
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| 3 |
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| 4 | Copyright (C) 1987-2002 Free Software Foundation, Inc.
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| 5 |
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| 6 | This file is part of GNU Bash, the Bourne Again SHell.
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| 7 |
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| 8 | Bash is free software; you can redistribute it and/or modify it under
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| 9 | the terms of the GNU General Public License as published by the Free
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| 10 | Software Foundation; either version 2, or (at your option) any later
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| 11 | version.
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| 12 |
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| 13 | Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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| 14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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| 16 | for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License along
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| 19 | with Bash; see the file COPYING. If not, write to the Free Software
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| 20 | Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
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| 21 |
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| 22 | $PRODUCES builtin.c
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| 23 |
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| 24 | $BUILTIN builtin
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| 25 | $FUNCTION builtin_builtin
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| 26 | $SHORT_DOC builtin [shell-builtin [arg ...]]
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| 27 | Run a shell builtin. This is useful when you wish to rename a
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| 28 | shell builtin to be a function, but need the functionality of the
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| 29 | builtin within the function itself.
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| 30 | $END
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| 31 | #include <config.h>
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| 32 |
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| 33 | #if defined (HAVE_UNISTD_H)
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| 34 | # ifdef _MINIX
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| 35 | # include <sys/types.h>
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| 36 | # endif
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| 37 | # include <unistd.h>
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| 38 | #endif
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| 39 |
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| 40 | #include "../shell.h"
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| 41 | #include "common.h"
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| 42 | #include "bashgetopt.h"
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| 43 |
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| 44 | extern char *this_command_name;
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| 45 |
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| 46 | /* Run the command mentioned in list directly, without going through the
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| 47 | normal alias/function/builtin/filename lookup process. */
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| 48 | int
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| 49 | builtin_builtin (list)
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| 50 | WORD_LIST *list;
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| 51 | {
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| 52 | sh_builtin_func_t *function;
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| 53 | register char *command;
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| 54 |
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| 55 | if (no_options (list))
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| 56 | return (EX_USAGE);
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| 57 | list = loptend; /* skip over possible `--' */
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| 58 |
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| 59 | if (list == 0)
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| 60 | return (EXECUTION_SUCCESS);
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| 61 |
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| 62 | command = list->word->word;
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| 63 | #if defined (DISABLED_BUILTINS)
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| 64 | function = builtin_address (command);
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| 65 | #else /* !DISABLED_BUILTINS */
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| 66 | function = find_shell_builtin (command);
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| 67 | #endif /* !DISABLED_BUILTINS */
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| 68 |
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| 69 | if (!function)
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| 70 | {
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| 71 | sh_notbuiltin (command);
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| 72 | return (EXECUTION_FAILURE);
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| 73 | }
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| 74 | else
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| 75 | {
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| 76 | this_command_name = command;
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| 77 | list = list->next;
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| 78 | return ((*function) (list));
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| 79 | }
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| 80 | }
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