15 commits

Author	SHA1	Message	Date
Mark Peek	9ccc37e320	Update to tcsh 6.18.01.	2012-02-22 03:36:15 +00:00
Roman Divacky	e05b498065	Fix tcsh losing history when tcsh terminates because the pty beneath it ... is closed. Diagnosed by Ted Anderson: New signal queuing logic was introduced in 6.15 and allows the signal handlers to be run explicitly by calling handle_pending_signals, instead of immediately when the signal is delivered. This function is called at various places, typically when receiving a EINTR from a slow system call such as read or write. In the pty exit case, it was called from xwrite, called from flush, while printing the "exit" message after receiving EOF when reading from the pty (note that the read did not return EINTR but zero bytes, indicating EOF). The SIGHUP handler, phup(), called rechist, which opened the history file and began writing the merged history to it. This process invoked flush recursively to actually write the data. In this case, however, the flush noticed it was being called recursively and decided fail by calling stderror. My conclusion was that the signal was being handled at a bad time. But whether to fix flush not to care about the recursive call, or to handle the signal some other time and when to handle it, was unclear to me. However, by adding an extra call to handle_pending_signals, just after process() returns to main(), I was able to avoid the truncated history after network outages and similar failures. I verified this fix in version 6.17. Approved by: ed (mentor) MFC after: 1 week	2009-10-06 20:19:16 +00:00
Mark Peek	a15e6f9a9a	Update to tcsh 6.17.00. ... Approved by: re (kensmith)	2009-07-11 05:35:08 +00:00
Mark Peek	bc49518e16	Flatten vendor/tcsh/dist.	2009-07-10 21:00:38 +00:00
Ruslan Ermilov	3b8bd8e77a	Actually fix pty detection for autologout setting. ... (The fix has been submitted upstream.)	2008-10-20 08:44:14 +00:00
Mark Peek	5c3ede8519	Import two vendor fixes from tcsh-6.15.01 for MFC to 7.0. The fixes are: ... - Fix pty detection for autologout setting - kill `foo` got stuck because sigchld was disabled too soon Requested by: re	2007-10-15 15:23:07 +00:00
Mark Peek	45e5710bbb	Import of tcsh-6.15.00	2007-03-11 22:33:41 +00:00
Mark Peek	23338178da	Import of tcsh-6.14.00	2005-04-24 19:41:08 +00:00
Mark Peek	b2d5d167ed	Import of tcsh-6.13.00	2004-07-11 02:17:56 +00:00
Mark Peek	2930157267	Import of tcsh-6.12.00	2002-07-24 16:23:10 +00:00
Mark Peek	6767bd61d2	Import tcsh-6.11	2001-09-05 17:49:32 +00:00
Kris Kennaway	28ae2e3a2b	Import vendor fix for buffer overflow in HOME environment variable	2001-03-03 23:45:43 +00:00
Andrey A. Chernov	3b6eaa7b1e	Initial import of slightly trimmed tcsh 6.10	2000-11-30 21:05:33 +00:00
David E. O'Brien	8e66bd9ec8	6.09.01 vendor update.	2000-04-20 04:22:36 +00:00
David E. O'Brien	c80476e4c3	Import the latest version of the 44BSD C-shell -- tcsh-6.09.	2000-04-15 04:41:27 +00:00