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Imported from ../bash-2.0.tar.gz.

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This commit is contained in:
Jari Aalto 1996-12-23 17:02:34 +00:00
commit ccc6cda312
502 changed files with 91988 additions and 69123 deletions
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67
builtins/suspend.def
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@ -30,15 +30,23 @@ signal. The `-f' if specified says not to complain about this
being a login shell if it is; just suspend anyway.
$END
#include <sys/types.h>
#include <config.h>
#if defined (JOB_CONTROL)
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "../bashtypes.h"
#include <signal.h>
#include "../shell.h"
#include "../jobs.h"
#include "common.h"
#include "bashgetopt.h"
#if defined (JOB_CONTROL)
extern int job_control;
static SigHandler *old_cont, *old_tstp;
static SigHandler *old_cont, *old_stop;
/* Continue handler. */
sighandler
@ -46,10 +54,10 @@ suspend_continue (sig)
int sig;
{
set_signal_handler (SIGCONT, old_cont);
set_signal_handler (SIGTSTP, old_tstp);
#if !defined (VOID_SIGHANDLER)
return (0);
#endif /* !VOID_SIGHANDLER */
#if 0
set_signal_handler (SIGSTOP, old_stop);
#endif
SIGRETURN (0);
}
/* Suspending the shell. If -f is the arg, then do the suspend
@ -58,28 +66,45 @@ int
suspend_builtin (list)
WORD_LIST *list;
{
if (!job_control)
int opt, force;
reset_internal_getopt ();
force = 0;
while ((opt = internal_getopt (list, "f")) != -1)
switch (opt)
{
case 'f':
force++;
break;
default:
builtin_usage ();
return (EX_USAGE);
}
list = loptend;
if (job_control == 0)
{
builtin_error ("Cannot suspend a shell without job control");
builtin_error ("cannot suspend a shell without job control");
return (EXECUTION_FAILURE);
}
if (list)
if (strcmp (list->word->word, "-f") == 0)
goto do_suspend;
no_args (list);
if (login_shell)
if (force == 0)
{
builtin_error ("Can't suspend a login shell");
return (EXECUTION_FAILURE);
no_args (list);
if (login_shell)
{
builtin_error ("cannot suspend a login shell");
return (EXECUTION_FAILURE);
}
}
do_suspend:
old_cont = (SigHandler *)set_signal_handler (SIGCONT, suspend_continue);
old_tstp = (SigHandler *)set_signal_handler (SIGTSTP, SIG_DFL);
killpg (shell_pgrp, SIGTSTP);
#if 0
old_stop = (SigHandler *)set_signal_handler (SIGSTOP, SIG_DFL);
#endif
killpg (shell_pgrp, SIGSTOP);
return (EXECUTION_SUCCESS);
}