Imported from ../bash-1.14.7.tar.gz.

1996-08-26 18:22:31 +00:00 · 1996-08-26 18:22:31 +00:00 · 726f63884d
commit 726f63884d
402 changed files with 150297 additions and 0 deletions
--- a/builtins/exit.def
+++ b/builtins/exit.def
@ -0,0 +1,129 @@
+This file is exit.def, from which is created exit.c.
+It implements the builtins "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.
+$END
+
+#include <stdio.h>
+#include <sys/types.h>
+#include "../shell.h"
+#include "../jobs.h"
+
+#include "builtext.h"	/* for jobs_builtin */
+
+extern int interactive, login_shell;
+extern int last_command_exit_value;
+
+static int exit_or_logout ();
+static int sourced_logout = 0;
+
+int
+exit_builtin (list)
+     WORD_LIST *list;
+{
+  if (interactive)
+    {
+      fprintf (stderr, login_shell ? "logout\n" : "exit\n");
+      fflush (stderr);
+    }
+
+  return (exit_or_logout (list));
+}
+
+$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'");
+      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;
+
+static int
+exit_or_logout (list)
+     WORD_LIST *list;
+{
+  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 && sourced_logout++ == 0)
+    maybe_execute_file ("~/.bash_logout", 1);
+
+  last_command_exit_value = exit_value;
+
+  /* Exit the program. */
+  longjmp (top_level, EXITPROG);
+}