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WL#5945 : Improve libedit library

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Updated libedit library.
This commit is contained in:
Nirbhay Choubey
2011-10-14 01:03:25 +05:30
parent 41b97529d0
commit 05a38e7bf3
52 changed files with 5379 additions and 3000 deletions
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86
cmd-line-utils/libedit/sig.c
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@ -1,4 +1,4 @@
/* $NetBSD: sig.c,v 1.12 2008/09/10 15:45:37 christos Exp $ */
/* $NetBSD: sig.c,v 1.17 2011/07/28 20:50:55 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -57,15 +57,15 @@ private const int sighdl[] = {
- 1
};
private void el_sig_handler(int);
private void sig_handler(int);
/* el_sig_handler():
/* sig_handler():
* This is the handler called for all signals
* XXX: we cannot pass any data so we just store the old editline
* state in a private variable
*/
private void
el_sig_handler(int signo)
sig_handler(int signo)
{
int i;
sigset_t nset, oset;
@ -74,12 +74,14 @@ el_sig_handler(int signo)
(void) sigaddset(&nset, signo);
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
sel->el_signal->sig_no = signo;
switch (signo) {
case SIGCONT:
tty_rawmode(sel);
if (ed_redisplay(sel, 0) == CC_REFRESH)
re_refresh(sel);
term__flush(sel);
terminal__flush(sel);
break;
case SIGWINCH:
@ -95,7 +97,10 @@ el_sig_handler(int signo)
if (signo == sighdl[i])
break;
(void) signal(signo, sel->el_signal[i]);
(void) sigaction(signo, &sel->el_signal->sig_action[i], NULL);
sel->el_signal->sig_action[i].sa_handler = SIG_ERR;
sel->el_signal->sig_action[i].sa_flags = 0;
sigemptyset(&sel->el_signal->sig_action[i].sa_mask);
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
(void) kill(0, signo);
}
@ -107,26 +112,29 @@ el_sig_handler(int signo)
protected int
sig_init(EditLine *el)
{
int i;
sigset_t nset, oset;
size_t i;
sigset_t *nset, oset;
(void) sigemptyset(&nset);
#define _DO(a) (void) sigaddset(&nset, a);
el->el_signal = el_malloc(sizeof(*el->el_signal));
if (el->el_signal == NULL)
return -1;
nset = &el->el_signal->sig_set;
(void) sigemptyset(nset);
#define _DO(a) (void) sigaddset(nset, a);
ALLSIGS
#undef _DO
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
(void) sigprocmask(SIG_BLOCK, nset, &oset);
#define SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(el_signalhandler_t))
el->el_signal = (el_signalhandler_t *) el_malloc(SIGSIZE);
if (el->el_signal == NULL)
return (-1);
for (i = 0; sighdl[i] != -1; i++)
el->el_signal[i] = SIG_ERR;
for (i = 0; sighdl[i] != -1; i++) {
el->el_signal->sig_action[i].sa_handler = SIG_ERR;
el->el_signal->sig_action[i].sa_flags = 0;
sigemptyset(&el->el_signal->sig_action[i].sa_mask);
}
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
return (0);
return 0;
}
@ -137,7 +145,7 @@ protected void
sig_end(EditLine *el)
{
el_free((ptr_t) el->el_signal);
el_free(el->el_signal);
el->el_signal = NULL;
}
@ -148,20 +156,21 @@ sig_end(EditLine *el)
protected void
sig_set(EditLine *el)
{
int i;
sigset_t nset, oset;
size_t i;
sigset_t oset;
struct sigaction osa, nsa;
(void) sigemptyset(&nset);
#define _DO(a) (void) sigaddset(&nset, a);
ALLSIGS
#undef _DO
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
nsa.sa_handler = sig_handler;
nsa.sa_flags = 0;
sigemptyset(&nsa.sa_mask);
(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
for (i = 0; sighdl[i] != -1; i++) {
el_signalhandler_t s;
/* This could happen if we get interrupted */
if ((s = signal(sighdl[i], el_sig_handler)) != el_sig_handler)
el->el_signal[i] = s;
if (sigaction(sighdl[i], &nsa, &osa) != -1 &&
osa.sa_handler != sig_handler)
el->el_signal->sig_action[i] = osa;
}
sel = el;
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
@ -174,20 +183,17 @@ sig_set(EditLine *el)
protected void
sig_clr(EditLine *el)
{
int i;
sigset_t nset, oset;
size_t i;
sigset_t oset;
(void) sigemptyset(&nset);
#define _DO(a) (void) sigaddset(&nset, a);
ALLSIGS
#undef _DO
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
for (i = 0; sighdl[i] != -1; i++)
if (el->el_signal[i] != SIG_ERR)
(void) signal(sighdl[i], el->el_signal[i]);
if (el->el_signal->sig_action[i].sa_handler != SIG_ERR)
(void)sigaction(sighdl[i],
&el->el_signal->sig_action[i], NULL);
sel = NULL; /* we are going to die if the handler is
* called */
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
(void)sigprocmask(SIG_SETMASK, &oset, NULL);
}