Imported from ../bash-2.04.tar.gz.
This commit is contained in:
Jari Aalto
parent
b72432fdcc
commit
bb70624e96
387 changed files with 28522 additions and 9334 deletions
94
shell.c
94
shell.c
|
|
@ -1,30 +1,22 @@
|
|||
/* shell.c -- GNU's idea of the POSIX shell specification.
|
||||
/* shell.c -- GNU's idea of the POSIX shell specification. */
|
||||
|
||||
This file is part of Bash, the Bourne Again SHell. Bash is free
|
||||
software; no one can prevent you from reading the source code, or
|
||||
giving it to someone else. This file is copyrighted under the GNU
|
||||
General Public License, which can be found in the file called
|
||||
COPYING.
|
||||
/* Copyright (C) 1987,1991 Free Software Foundation, Inc.
|
||||
|
||||
Copyright (C) 1988, 1991 Free Software Foundation, Inc.
|
||||
This file is part of GNU Bash, the Bourne Again SHell.
|
||||
|
||||
This file is part of GNU Bash.
|
||||
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 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
Bash is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY. No author or distributor accepts responsibility to
|
||||
anyone for the consequences of using it or for whether it serves
|
||||
any particular purpose or works at all, unless he says so in
|
||||
writing. Refer to the GNU Emacs General Public License for full
|
||||
details.
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
||||
License for more details.
|
||||
|
||||
Everyone is granted permission to copy, modify and redistribute
|
||||
Bash, but only under the conditions described in the GNU General
|
||||
Public License. A copy of this license is supposed to have been
|
||||
given to you along with GNU Emacs so you can know your rights and
|
||||
responsibilities. It should be in a file named COPYING.
|
||||
|
||||
Among other things, the copyright notice and this notice must be
|
||||
preserved on all copies.
|
||||
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, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
|
||||
|
||||
Birthdate:
|
||||
Sunday, January 10th, 1988.
|
||||
|
|
@ -91,6 +83,7 @@ extern char **environ; /* used if no third argument to main() */
|
|||
|
||||
extern char *dist_version, *release_status;
|
||||
extern int patch_level, build_version;
|
||||
extern int shell_level;
|
||||
extern int subshell_environment;
|
||||
extern int last_command_exit_value;
|
||||
extern int line_number;
|
||||
|
|
@ -238,8 +231,10 @@ char **subshell_envp;
|
|||
int default_buffered_input = -1;
|
||||
#endif
|
||||
|
||||
static int read_from_stdin; /* -s flag supplied */
|
||||
static int want_pending_command; /* -c flag supplied */
|
||||
/* The following two variables are not static so they can show up in $-. */
|
||||
int read_from_stdin; /* -s flag supplied */
|
||||
int want_pending_command; /* -c flag supplied */
|
||||
|
||||
static char *local_pending_command;
|
||||
|
||||
static FILE *default_input;
|
||||
|
|
@ -795,6 +790,15 @@ exit_shell (s)
|
|||
exit (s);
|
||||
}
|
||||
|
||||
/* A wrapper for exit that (optionally) can do other things, like malloc
|
||||
statistics tracing. */
|
||||
void
|
||||
sh_exit (s)
|
||||
int s;
|
||||
{
|
||||
exit (s);
|
||||
}
|
||||
|
||||
/* Source the bash startup files. If POSIXLY_CORRECT is non-zero, we obey
|
||||
the Posix.2 startup file rules: $ENV is expanded, and if the file it
|
||||
names exists, that file is sourced. The Posix.2 rules are in effect
|
||||
|
|
@ -851,27 +855,17 @@ run_startup_files ()
|
|||
int old_job_control;
|
||||
#endif
|
||||
int sourced_login, run_by_ssh;
|
||||
SHELL_VAR *sshvar;
|
||||
|
||||
/* get the rshd/sshd case out of the way first. */
|
||||
if (interactive_shell == 0 && no_rc == 0 && login_shell == 0 &&
|
||||
act_like_sh == 0 && local_pending_command)
|
||||
{
|
||||
/* Find out if we were invoked by ssh. If so, set RUN_BY_SSH to 1. */
|
||||
sshvar = find_variable ("SSH_CLIENT");
|
||||
if (sshvar)
|
||||
{
|
||||
run_by_ssh = 1;
|
||||
/* Now that we've tested the variable, we need to unexport it. */
|
||||
sshvar->attributes &= ~att_exported;
|
||||
array_needs_making = 1;
|
||||
}
|
||||
else
|
||||
run_by_ssh = 0;
|
||||
run_by_ssh = find_variable ("SSH_CLIENT") != (SHELL_VAR *)0;
|
||||
run_by_ssh |= find_variable ("SSH2_CLIENT") != (SHELL_VAR *)0;
|
||||
|
||||
/* If we were run by sshd or we think we were run by rshd, execute
|
||||
~/.bashrc. */
|
||||
if (run_by_ssh || isnetconn (fileno (stdin)))
|
||||
~/.bashrc if we are a top-level shell. */
|
||||
if ((run_by_ssh || isnetconn (fileno (stdin))) && shell_level < 2)
|
||||
{
|
||||
#ifdef SYS_BASHRC
|
||||
# if defined (__OPENNT)
|
||||
|
|
@ -892,7 +886,15 @@ run_startup_files ()
|
|||
|
||||
sourced_login = 0;
|
||||
|
||||
if (login_shell < 0 && posixly_correct == 0) /* --login flag and not posix */
|
||||
/* A shell begun with the --login flag that is not in posix mode runs
|
||||
the login shell startup files, no matter whether or not it is
|
||||
interactive. If NON_INTERACTIVE_LOGIN_SHELLS is defined, run the
|
||||
startup files if argv[0][0] == '-' as well. */
|
||||
#if defined (NON_INTERACTIVE_LOGIN_SHELLS)
|
||||
if (login_shell && posixly_correct == 0)
|
||||
#else
|
||||
if (login_shell < 0 && posixly_correct == 0)
|
||||
#endif
|
||||
{
|
||||
/* We don't execute .bashrc for login shells. */
|
||||
no_rc++;
|
||||
|
|
@ -955,7 +957,7 @@ run_startup_files ()
|
|||
maybe_execute_file (_prefixInstallPath(SYS_BASHRC, NULL, 0), 1);
|
||||
# else
|
||||
maybe_execute_file (SYS_BASHRC, 1);
|
||||
# endif`
|
||||
# endif
|
||||
#endif
|
||||
maybe_execute_file (bashrc_file, 1);
|
||||
}
|
||||
|
|
@ -1256,6 +1258,11 @@ open_shell_script (script_name)
|
|||
lseek (fd, 0L, 0);
|
||||
}
|
||||
|
||||
/* Open the script. But try to move the file descriptor to a randomly
|
||||
large one, in the hopes that any descriptors used by the script will
|
||||
not match with ours. */
|
||||
fd = move_to_high_fd (fd, 0, -1);
|
||||
|
||||
#if defined (BUFFERED_INPUT)
|
||||
default_buffered_input = fd;
|
||||
# if 0
|
||||
|
|
@ -1268,11 +1275,6 @@ open_shell_script (script_name)
|
|||
# endif
|
||||
SET_CLOSE_ON_EXEC (default_buffered_input);
|
||||
#else /* !BUFFERED_INPUT */
|
||||
/* Open the script. But try to move the file descriptor to a randomly
|
||||
large one, in the hopes that any descriptors used by the script will
|
||||
not match with ours. */
|
||||
fd = move_to_high_fd (fd, 0, -1);
|
||||
|
||||
default_input = fdopen (fd, "r");
|
||||
|
||||
if (default_input == 0)
|
||||
|
|
@ -1454,8 +1456,8 @@ shell_initialize ()
|
|||
/* Line buffer output for stderr and stdout. */
|
||||
if (shell_initialized == 0)
|
||||
{
|
||||
setlinebuf (stderr);
|
||||
setlinebuf (stdout);
|
||||
sh_setlinebuf (stderr);
|
||||
sh_setlinebuf (stdout);
|
||||
}
|
||||
|
||||
/* Sort the array of shell builtins so that the binary search in
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue