READLINE PATCH REPORT
=====================
Readline-Release: 5.2
Patch-ID: readline52-005
Bug-Reported-by: Thomas Loeber <ifp@loeber1.de>
Bug-Reference-ID: <200703082223.08919.ifp@loeber1.de>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2007-03/msg00036.html
Bug-Description:
When rl_read_key returns -1, indicating that readline's controlling terminal
has been invalidated for some reason (e.g., receiving a SIGHUP), the error
status was not reported correctly to the caller. This could cause input
loops.
Patch:
*** ../readline-5.2/complete.c Fri Jul 28 11:35:49 2006
--- complete.c Tue Mar 13 08:50:16 2007
***************
*** 429,433 ****
if (c == 'n' || c == 'N' || c == RUBOUT)
return (0);
! if (c == ABORT_CHAR)
_rl_abort_internal ();
if (for_pager && (c == NEWLINE || c == RETURN))
--- 440,444 ----
if (c == 'n' || c == 'N' || c == RUBOUT)
return (0);
! if (c == ABORT_CHAR || c < 0)
_rl_abort_internal ();
if (for_pager && (c == NEWLINE || c == RETURN))
*** ../readline-5.2/input.c Wed Aug 16 15:15:16 2006
--- input.c Wed May 2 16:07:59 2007
***************
*** 514,518 ****
int size;
{
! int mb_len = 0;
size_t mbchar_bytes_length;
wchar_t wc;
--- 522,526 ----
int size;
{
! int mb_len, c;
size_t mbchar_bytes_length;
wchar_t wc;
***************
*** 521,531 ****
memset(&ps, 0, sizeof (mbstate_t));
memset(&ps_back, 0, sizeof (mbstate_t));
!
while (mb_len < size)
{
RL_SETSTATE(RL_STATE_MOREINPUT);
! mbchar[mb_len++] = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
mbchar_bytes_length = mbrtowc (&wc, mbchar, mb_len, &ps);
if (mbchar_bytes_length == (size_t)(-1))
--- 529,545 ----
memset(&ps, 0, sizeof (mbstate_t));
memset(&ps_back, 0, sizeof (mbstate_t));
!
! mb_len = 0;
while (mb_len < size)
{
RL_SETSTATE(RL_STATE_MOREINPUT);
! c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ break;
+
+ mbchar[mb_len++] = c;
+
mbchar_bytes_length = mbrtowc (&wc, mbchar, mb_len, &ps);
if (mbchar_bytes_length == (size_t)(-1))
***************
*** 565,569 ****
c = first;
memset (mb, 0, mlen);
! for (i = 0; i < mlen; i++)
{
mb[i] = (char)c;
--- 579,583 ----
c = first;
memset (mb, 0, mlen);
! for (i = 0; c >= 0 && i < mlen; i++)
{
mb[i] = (char)c;
*** ../readline-5.2/isearch.c Mon Dec 26 17:18:53 2005
--- isearch.c Fri Mar 9 14:30:59 2007
***************
*** 328,333 ****
f = (rl_command_func_t *)NULL;
!
! /* Translate the keys we do something with to opcodes. */
if (c >= 0 && _rl_keymap[c].type == ISFUNC)
{
--- 328,340 ----
f = (rl_command_func_t *)NULL;
!
! if (c < 0)
! {
! cxt->sflags |= SF_FAILED;
! cxt->history_pos = cxt->last_found_line;
! return -1;
! }
!
! /* Translate the keys we do something with to opcodes. */
if (c >= 0 && _rl_keymap[c].type == ISFUNC)
{
*** ../readline-5.2/misc.c Mon Dec 26 17:20:46 2005
--- misc.c Fri Mar 9 14:44:11 2007
***************
*** 147,150 ****
--- 147,152 ----
rl_clear_message ();
RL_UNSETSTATE(RL_STATE_NUMERICARG);
+ if (key < 0)
+ return -1;
return (_rl_dispatch (key, _rl_keymap));
}
*** ../readline-5.2/readline.c Wed Aug 16 15:00:36 2006
--- readline.c Fri Mar 9 14:47:24 2007
***************
*** 646,649 ****
--- 669,677 ----
{
nkey = _rl_subseq_getchar (cxt->okey);
+ if (nkey < 0)
+ {
+ _rl_abort_internal ();
+ return -1;
+ }
r = _rl_dispatch_subseq (nkey, cxt->dmap, cxt->subseq_arg);
cxt->flags |= KSEQ_DISPATCHED;
*** ../readline-5.2/text.c Fri Jul 28 11:55:27 2006
--- text.c Sun Mar 25 13:41:38 2007
***************
*** 858,861 ****
--- 864,870 ----
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+
#if defined (HANDLE_SIGNALS)
if (RL_ISSTATE (RL_STATE_CALLBACK) == 0)
***************
*** 1521,1524 ****
--- 1530,1536 ----
mb_len = _rl_read_mbchar (mbchar, MB_LEN_MAX);
+ if (mb_len <= 0)
+ return -1;
+
if (count < 0)
return (_rl_char_search_internal (-count, bdir, mbchar, mb_len));
***************
*** 1537,1540 ****
--- 1549,1555 ----
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+
if (count < 0)
return (_rl_char_search_internal (-count, bdir, c));
*** ../readline-5.2/vi_mode.c Sat Jul 29 16:42:28 2006
--- vi_mode.c Fri Mar 9 15:02:11 2007
***************
*** 887,890 ****
--- 887,897 ----
c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+
+ if (c < 0)
+ {
+ *nextkey = 0;
+ return -1;
+ }
+
*nextkey = c;
***************
*** 903,906 ****
--- 910,918 ----
c = rl_read_key (); /* real command */
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ {
+ *nextkey = 0;
+ return -1;
+ }
*nextkey = c;
}
***************
*** 1225,1236 ****
_rl_callback_generic_arg *data;
{
#if defined (HANDLE_MULTIBYTE)
! _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
! _rl_vi_last_search_char = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
#endif
_rl_callback_func = 0;
_rl_want_redisplay = 1;
--- 1243,1262 ----
_rl_callback_generic_arg *data;
{
+ int c;
#if defined (HANDLE_MULTIBYTE)
! c = _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
! c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
#endif
+ if (c <= 0)
+ return -1;
+
+ #if !defined (HANDLE_MULTIBYTE)
+ _rl_vi_last_search_char = c;
+ #endif
+
_rl_callback_func = 0;
_rl_want_redisplay = 1;
***************
*** 1248,1251 ****
--- 1274,1278 ----
int count, key;
{
+ int c;
#if defined (HANDLE_MULTIBYTE)
static char *target;
***************
*** 1294,1302 ****
{
#if defined (HANDLE_MULTIBYTE)
! _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
! _rl_vi_last_search_char = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
#endif
}
--- 1321,1335 ----
{
#if defined (HANDLE_MULTIBYTE)
! c = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
! if (c <= 0)
! return -1;
! _rl_vi_last_search_mblen = c;
#else
RL_SETSTATE(RL_STATE_MOREINPUT);
! c = rl_read_key ();
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+ _rl_vi_last_search_char = c;
#endif
}
***************
*** 1468,1471 ****
--- 1501,1507 ----
RL_UNSETSTATE(RL_STATE_MOREINPUT);
+ if (c < 0)
+ return -1;
+
#if defined (HANDLE_MULTIBYTE)
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
***************
*** 1486,1489 ****
--- 1522,1528 ----
_rl_vi_last_replacement = c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
+ if (c < 0)
+ return -1;
+
_rl_callback_func = 0;
_rl_want_redisplay = 1;
***************
*** 1517,1520 ****
--- 1556,1562 ----
_rl_vi_last_replacement = c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
+ if (c < 0)
+ return -1;
+
return (_rl_vi_change_char (count, c, mb));
}
***************
*** 1651,1655 ****
RL_UNSETSTATE(RL_STATE_MOREINPUT);
! if (ch < 'a' || ch > 'z')
{
rl_ding ();
--- 1693,1697 ----
RL_UNSETSTATE(RL_STATE_MOREINPUT);
! if (ch < 0 || ch < 'a' || ch > 'z') /* make test against 0 explicit */
{
rl_ding ();
***************
*** 1703,1707 ****
return 0;
}
! else if (ch < 'a' || ch > 'z')
{
rl_ding ();
--- 1745,1749 ----
return 0;
}
! else if (ch < 0 || ch < 'a' || ch > 'z') /* make test against 0 explicit */
{
rl_ding ();