1 This file is exit.def, from which is created exit.c.
2 It implements the builtins "exit", and "logout" in Bash.
4 Copyright (C) 1987-2009 Free Software Foundation, Inc.
6 This file is part of GNU Bash, the Bourne Again SHell.
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.
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.
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/>.
24 $FUNCTION exit_builtin
28 Exits the shell with a status of N. If N is omitted, the exit status
29 is that of the last command executed.
34 #include "../bashtypes.h"
37 #if defined (HAVE_UNISTD_H)
41 #include "../bashintl.h"
47 #include "builtext.h" /* for jobs_builtin */
49 extern int check_jobs_at_exit;
50 extern int last_command_exit_value;
51 extern int running_trap, trap_saved_exit_value;
52 extern int subshell_environment;
53 extern sh_builtin_func_t *this_shell_builtin;
54 extern sh_builtin_func_t *last_shell_builtin;
56 static int exit_or_logout __P((WORD_LIST *));
57 static int sourced_logout;
65 fprintf (stderr, login_shell ? _("logout\n") : "exit\n");
69 return (exit_or_logout (list));
73 $FUNCTION logout_builtin
77 Exits a login shell with exit status N. Returns an error if not executed
86 if (login_shell == 0 /* && interactive */)
88 builtin_error (_("not login shell: use `exit'"));
89 return (EXECUTION_FAILURE);
92 return (exit_or_logout (list));
101 #if defined (JOB_CONTROL)
102 int exit_immediate_okay, stopmsg;
104 exit_immediate_okay = (interactive == 0 ||
105 last_shell_builtin == exit_builtin ||
106 last_shell_builtin == logout_builtin ||
107 last_shell_builtin == jobs_builtin);
109 /* Check for stopped jobs if the user wants to. */
110 if (exit_immediate_okay == 0)
113 for (i = stopmsg = 0; i < js.j_jobslots; i++)
114 if (jobs[i] && STOPPED (i))
116 else if (check_jobs_at_exit && stopmsg == 0 && jobs[i] && RUNNING (i))
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"));
124 if (stopmsg && check_jobs_at_exit)
125 list_all_jobs (JLIST_STANDARD);
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);
137 #endif /* JOB_CONTROL */
139 /* Get return value if present. This means that you can type
140 `logout 5' to a shell, and it returns 5. */
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);
150 last_command_exit_value = exit_value;
152 /* Exit the program. */
153 jump_to_top_level (EXITPROG);
160 /* Run our `~/.bash_logout' file if it exists, and this is a login shell. */
161 if (login_shell && sourced_logout++ == 0 && subshell_environment == 0)
163 maybe_execute_file ("~/.bash_logout", 1);
164 #ifdef SYS_BASH_LOGOUT
165 maybe_execute_file (SYS_BASH_LOGOUT, 1);