This file is return.def, from which is created return.c.
It implements the builtin "return" in Bash.
-Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
+Copyright (C) 1987-2009 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 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.
+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.
+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
$FUNCTION return_builtin
$SHORT_DOC return [n]
-Causes a function to exit with the return value specified by N. If N
-is omitted, the return status is that of the last command.
+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 "common.h"
+#include "bashgetopt.h"
extern int last_command_exit_value;
+extern int subshell_environment;
extern int return_catch_flag, return_catch_value;
-extern jmp_buf return_catch;
/* 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
return_builtin (list)
WORD_LIST *list;
{
- return_catch_value = get_numeric_arg (list);
+ if (no_options (list))
+ return (EX_USAGE);
+ list = loptend; /* skip over possible `--' */
- if (!list)
- return_catch_value = last_command_exit_value;
+ return_catch_value = get_exitstat (list);
if (return_catch_flag)
longjmp (return_catch, 1);
else
{
- builtin_error ("Can only `return' from a function");
+ builtin_error (_("can only `return' from a function or sourced script"));
return (EXECUTION_FAILURE);
}
}