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Commit | Line | Data |
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726f6388 | 1 | This file is exit.def, from which is created exit.c. |
ccc6cda3 | 2 | It implements the builtins "exit", and "logout" in Bash. |
726f6388 | 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 | |
3185942a JA |
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/>. | |
726f6388 JA |
20 | |
21 | $PRODUCES exit.c | |
22 | ||
23 | $BUILTIN exit | |
24 | $FUNCTION exit_builtin | |
25 | $SHORT_DOC exit [n] | |
3185942a JA |
26 | Exit the shell. |
27 | ||
28 | Exits the shell with a status of N. If N is omitted, the exit status | |
726f6388 JA |
29 | is that of the last command executed. |
30 | $END | |
31 | ||
ccc6cda3 JA |
32 | #include <config.h> |
33 | ||
d166f048 | 34 | #include "../bashtypes.h" |
ccc6cda3 JA |
35 | #include <stdio.h> |
36 | ||
37 | #if defined (HAVE_UNISTD_H) | |
38 | # include <unistd.h> | |
39 | #endif | |
40 | ||
b80f6443 JA |
41 | #include "../bashintl.h" |
42 | ||
726f6388 JA |
43 | #include "../shell.h" |
44 | #include "../jobs.h" | |
45 | ||
ccc6cda3 | 46 | #include "common.h" |
726f6388 JA |
47 | #include "builtext.h" /* for jobs_builtin */ |
48 | ||
3185942a | 49 | extern int check_jobs_at_exit; |
726f6388 | 50 | extern int last_command_exit_value; |
b80f6443 | 51 | extern int running_trap, trap_saved_exit_value; |
f73dda09 JA |
52 | extern int subshell_environment; |
53 | extern sh_builtin_func_t *this_shell_builtin; | |
54 | extern sh_builtin_func_t *last_shell_builtin; | |
726f6388 | 55 | |
f73dda09 | 56 | static int exit_or_logout __P((WORD_LIST *)); |
ccc6cda3 | 57 | static int sourced_logout; |
726f6388 JA |
58 | |
59 | int | |
60 | exit_builtin (list) | |
61 | WORD_LIST *list; | |
62 | { | |
63 | if (interactive) | |
64 | { | |
3185942a | 65 | fprintf (stderr, login_shell ? _("logout\n") : "exit\n"); |
726f6388 JA |
66 | fflush (stderr); |
67 | } | |
68 | ||
69 | return (exit_or_logout (list)); | |
70 | } | |
71 | ||
72 | $BUILTIN logout | |
73 | $FUNCTION logout_builtin | |
3185942a JA |
74 | $SHORT_DOC logout [n] |
75 | Exit a login shell. | |
76 | ||
77 | Exits a login shell with exit status N. Returns an error if not executed | |
78 | in a login shell. | |
726f6388 JA |
79 | $END |
80 | ||
81 | /* How to logout. */ | |
82 | int | |
83 | logout_builtin (list) | |
84 | WORD_LIST *list; | |
85 | { | |
cce855bc | 86 | if (login_shell == 0 /* && interactive */) |
726f6388 | 87 | { |
b80f6443 | 88 | builtin_error (_("not login shell: use `exit'")); |
726f6388 JA |
89 | return (EXECUTION_FAILURE); |
90 | } | |
91 | else | |
92 | return (exit_or_logout (list)); | |
93 | } | |
94 | ||
726f6388 JA |
95 | static int |
96 | exit_or_logout (list) | |
97 | WORD_LIST *list; | |
98 | { | |
99 | int exit_value; | |
100 | ||
101 | #if defined (JOB_CONTROL) | |
3185942a | 102 | int exit_immediate_okay, stopmsg; |
726f6388 | 103 | |
ccc6cda3 | 104 | exit_immediate_okay = (interactive == 0 || |
726f6388 JA |
105 | last_shell_builtin == exit_builtin || |
106 | last_shell_builtin == logout_builtin || | |
107 | last_shell_builtin == jobs_builtin); | |
108 | ||
109 | /* Check for stopped jobs if the user wants to. */ | |
3185942a | 110 | if (exit_immediate_okay == 0) |
726f6388 JA |
111 | { |
112 | register int i; | |
3185942a | 113 | for (i = stopmsg = 0; i < js.j_jobslots; i++) |
ccc6cda3 | 114 | if (jobs[i] && STOPPED (i)) |
3185942a | 115 | stopmsg = JSTOPPED; |
89a92869 | 116 | else if (check_jobs_at_exit && stopmsg == 0 && jobs[i] && RUNNING (i)) |
3185942a JA |
117 | stopmsg = JRUNNING; |
118 | ||
119 | if (stopmsg == JSTOPPED) | |
120 | fprintf (stderr, _("There are stopped jobs.\n")); | |
121 | else if (stopmsg == JRUNNING) | |
122 | fprintf (stderr, _("There are running jobs.\n")); | |
123 | ||
124 | if (stopmsg && check_jobs_at_exit) | |
125 | list_all_jobs (JLIST_STANDARD); | |
126 | ||
127 | if (stopmsg) | |
128 | { | |
129 | /* This is NOT superfluous because EOF can get here without | |
130 | going through the command parser. Set both last and this | |
131 | so that either `exit', `logout', or ^D will work to exit | |
132 | immediately if nothing intervenes. */ | |
133 | this_shell_builtin = last_shell_builtin = exit_builtin; | |
134 | return (EXECUTION_FAILURE); | |
135 | } | |
726f6388 JA |
136 | } |
137 | #endif /* JOB_CONTROL */ | |
138 | ||
139 | /* Get return value if present. This means that you can type | |
140 | `logout 5' to a shell, and it returns 5. */ | |
7117c2d2 | 141 | |
b80f6443 JA |
142 | /* If we're running the exit trap (running_trap == 1, since running_trap |
143 | gets set to SIG+1), and we don't have a argument given to `exit' | |
144 | (list == 0), use the exit status we saved before running the trap | |
145 | commands (trap_saved_exit_value). */ | |
146 | exit_value = (running_trap == 1 && list == 0) ? trap_saved_exit_value : get_exitstat (list); | |
147 | ||
148 | bash_logout (); | |
149 | ||
150 | last_command_exit_value = exit_value; | |
151 | ||
152 | /* Exit the program. */ | |
153 | jump_to_top_level (EXITPROG); | |
154 | /*NOTREACHED*/ | |
155 | } | |
726f6388 | 156 | |
b80f6443 JA |
157 | void |
158 | bash_logout () | |
159 | { | |
726f6388 | 160 | /* Run our `~/.bash_logout' file if it exists, and this is a login shell. */ |
f73dda09 | 161 | if (login_shell && sourced_logout++ == 0 && subshell_environment == 0) |
ccc6cda3 JA |
162 | { |
163 | maybe_execute_file ("~/.bash_logout", 1); | |
164 | #ifdef SYS_BASH_LOGOUT | |
165 | maybe_execute_file (SYS_BASH_LOGOUT, 1); | |
166 | #endif | |
167 | } | |
726f6388 | 168 | } |