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- This file is exit.def, from which is created exit.c.
- It implements the builtins "bye" and "exit", and "logout" in Bash.
-
- Copyright (C) 1987, 1989, 1991 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 1, 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; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $PRODUCES exit.c
-
- $BUILTIN exit
- $FUNCTION exit_builtin
- $SHORT_DOC exit [n]
- Exit the shell with a status of N. If N is omitted, the exit status
- is that of the last command executed.
- $END
-
- $BUILTIN bye
- $FUNCTION exit_builtin
- $SHORT_DOC bye [n]
- Synonym for exit.
- $END
-
- #include <stdio.h>
- #include <sys/types.h>
- #include "../shell.h"
- #include "../jobs.h"
-
- #if defined (JOB_CONTROL)
- extern int jobs_builtin ();
- #endif /* JOB_CONTROL */
- extern int interactive;
-
- int
- exit_builtin (list)
- WORD_LIST *list;
- {
- extern int login_shell;
-
- if (interactive)
- {
- fprintf (stderr, login_shell ? "logout\n" : "exit\n");
- fflush (stderr);
- }
-
- return (exit_or_logout (list));
- }
-
- $BUILTIN logout
- $FUNCTION logout_builtin
- $SHORT_DOC logout
- Logout of a login shell.
- $END
-
- /* How to logout. */
- int
- logout_builtin (list)
- WORD_LIST *list;
- {
- if (!login_shell && interactive)
- {
- builtin_error ("Not login shell: use `exit' or `bye'");
- return (EXECUTION_FAILURE);
- }
- else
- return (exit_or_logout (list));
- }
-
- /* Clean up work for exiting or logging out. */
- Function *last_shell_builtin = (Function *)NULL;
- Function *this_shell_builtin = (Function *)NULL;
-
- exit_or_logout (list)
- WORD_LIST *list;
- {
- extern int last_command_exit_value;
- int exit_value;
-
- #if defined (JOB_CONTROL)
- int exit_immediate_okay;
-
- exit_immediate_okay = (!interactive ||
- last_shell_builtin == exit_builtin ||
- last_shell_builtin == logout_builtin ||
- last_shell_builtin == jobs_builtin);
-
- /* Check for stopped jobs if the user wants to. */
- if (!exit_immediate_okay)
- {
- register int i;
- for (i = 0; i < job_slots; i++)
- if (jobs[i] && (jobs[i]->state == JSTOPPED))
- {
- fprintf (stderr, "There are stopped jobs.\n");
-
- /* This is NOT superfluous because EOF can get here without
- going through the command parser. Set both last and this
- so that either `exit', `logout', or ^D will work to exit
- immediately if nothing intervenes. */
- this_shell_builtin = last_shell_builtin = exit_builtin;
- return (EXECUTION_FAILURE);
- }
- }
- #endif /* JOB_CONTROL */
-
- /* Get return value if present. This means that you can type
- `logout 5' to a shell, and it returns 5. */
- if (list)
- exit_value = get_numeric_arg (list);
- else
- exit_value = last_command_exit_value;
-
- /* Run our `~/.bash_logout' file if it exists, and this is a login shell. */
- if (login_shell)
- maybe_execute_file ("~/.bash_logout");
-
- last_command_exit_value = exit_value;
-
- /* Exit the program. */
- longjmp (top_level, EXITPROG);
- }
-