blob: 03c98eb11a5d4aabe237b0156d7569a458b53978 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
This file is return.def, from which is created return.c.
It implements the builtin "return" in Bash.
Copyright (C) 1987-2015 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
$PRODUCES return.c
$BUILTIN return
$FUNCTION return_builtin
$SHORT_DOC return [n]
Return from a shell function.
Causes a function or sourced script to exit with the return value
specified by N. If N is omitted, the return status is that of the
last command executed within the function or script.
Exit Status:
Returns N, or failure if the shell is not executing a function or script.
$END
#include <config.h>
#if defined (HAVE_UNISTD_H)
# ifdef _MINIX
# include <sys/types.h>
# endif
# include <unistd.h>
#endif
#include "../bashintl.h"
#include "../shell.h"
#include "../execute_cmd.h"
#include "common.h"
#include "bashgetopt.h"
/* If we are executing a user-defined function then exit with the value
specified as an argument. if no argument is given, then the last
exit status is used. */
int
return_builtin (list)
WORD_LIST *list;
{
CHECK_HELPOPT (list);
return_catch_value = get_exitstat (list);
if (return_catch_flag)
sh_longjmp (return_catch, 1);
else
{
builtin_error (_("can only `return' from a function or sourced script"));
return (EX_USAGE);
}
}
|
