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This file is eval.def, from which is created eval.c.
It implements the builtin "eval" in Bash.
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 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.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
$PRODUCES eval.c
$BUILTIN eval
$FUNCTION eval_builtin
$SHORT_DOC eval [arg ...]
Execute arguments as a shell command.
Combine ARGs into a single string, use the result as input to the shell,
and execute the resulting commands.
Exit Status:
Returns exit status of command or success if command is null.
$END
#include <config.h>
#if defined (HAVE_UNISTD_H)
# ifdef _MINIX
# include <sys/types.h>
# endif
# include <unistd.h>
#endif
#include "../shell.h"
#include "bashgetopt.h"
#include "common.h"
/* Parse the string that these words make, and execute the command found. */
int
eval_builtin (list)
WORD_LIST *list;
{
if (no_options (list))
return (EX_USAGE);
list = loptend; /* skip over possible `--' */
/* Note that parse_and_execute () frees the string it is passed. */
return (list ? parse_and_execute (string_list (list), "eval", SEVAL_NOHIST) : EXECUTION_SUCCESS);
}
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