import tcsh-6.20.00-13.el8

SOURCES/tcsh-6.20.00-012-warrning-history-loading.patch

@@ -0,0 +1,25 @@
+From 4723e1754cd28657183358334fe77fe328f01bd0 Mon Sep 17 00:00:00 2001
+From: Christos Zoulas <christos.zoulas@twosigma.com>
+Date: Fri, 18 Oct 2019 13:35:49 -0400
+Subject: [PATCH] When the load of history caused an error, say so.
+diff --git a/sh.err.c b/sh.err.c
+index c676f5e..010b23c 100644
+--- a/sh.err.c
++++ b/sh.err.c
+@@ -43,6 +43,7 @@
+ #endif
+ 
+ char   *seterr = NULL;	/* Holds last error if there was one */
++extern int enterhist;
+ 
+ #define ERR_FLAGS	0xf0000000
+ #define ERR_NAME	0x10000000
+@@ -630,6 +631,8 @@ stderror(unsigned int id, ...)
+ 	 */
+ 	flush();/*FIXRESET*/
+ 	haderr = 1;		/* Now to diagnostic output */
++	if (enterhist)
++	    xprintf("Can't load history: ");/*FIXRESET*/
+ 	if (flags & ERR_NAME)
+ 	    xprintf("%s: ", bname);/*FIXRESET*/
+ 	if ((flags & ERR_OLD)) {

SOURCES/tcsh-6.20.00-013-prevent-phup-and-record-from-multiple-execution.patch

@@ -0,0 +1,31 @@
+From 67db04d8d8ada0aa2fb7dfdf83f3a408ad5a01dc Mon Sep 17 00:00:00 2001
+From: zoulasc <christos@zoulas.com>
+Date: Mon, 20 Jan 2020 11:29:01 -0500
+Subject: [PATCH] Prevent phup() and record() from being executed more than
+ once because writing history recursively deadlocks (Brett Frankenberger)
+diff --git a/sh.c b/sh.c
+index dd87172..75ba62d 100644
+--- a/sh.c
++++ b/sh.c
+@@ -1839,6 +1839,10 @@ exitstat(void)
+ void
+ phup(void)
+ {
++    static int again = 0;
++    if (again++)
++	return;
++
+     if (loginsh) {
+ 	setcopy(STRlogout, STRhangup, VAR_READWRITE);
+ #ifdef _PATH_DOTLOGOUT
+@@ -2516,6 +2520,10 @@ defaultpath(void)
+ static void
+ record(void)
+ {
++    static int again = 0;
++    if (again++)
++	return;
++
+     if (!fast) {
+ 	recdirs(NULL, adrof(STRsavedirs) != NULL);
+ 	rechist(NULL, adrof(STRsavehist) != NULL);

SOURCES/tcsh-6.20.00-014-call-stderror-consistently-and-avoid-inf-loops.patch

@@ -0,0 +1,35 @@
+From 38ffe6da549152a0c411407f5846d0b8896bc25c Mon Sep 17 00:00:00 2001
+From: Jan Macku <jamacku@redhat.com>
+Date: Thu, 30 Jul 2020 09:42:39 +0200
+Subject: [PATCH] Call stderror consistently and avoid inf loops
+Suggested by Kamil Dudka
+
+---
+ sh.lex.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/sh.lex.c b/sh.lex.c
+index a10436c..fcaae97 100644
+--- a/sh.lex.c
++++ b/sh.lex.c
+@@ -304,7 +304,7 @@ word(int parsehtime)
+     cleanup_push(&wbuf, Strbuf_cleanup);
+ loop:
+     if (enterhist && toolong++ > 256 * 1024)
+-	seterror(ERR_WTOOLONG);
++	stderror(ERR_WTOOLONG);
+     while ((c = getC(DOALL)) == ' ' || c == '\t')
+ 	continue;
+     if (cmap(c, _META | _ESC))
+@@ -364,7 +364,7 @@ loop:
+     dolflg = DOALL;
+     for (;;) {
+ 	if (enterhist && toolong++ > 256 * 1024)
+-	    seterror(ERR_WTOOLONG);
++	    stderror(ERR_WTOOLONG);
+ 	if (c1) {
+ 	    if (c == c1) {
+ 		c1 = 0;
+-- 
+2.25.4
+

SPECS/tcsh.spec

@@ -13,7 +13,7 @@
 Name:             tcsh
 Summary:          An enhanced version of csh, the C shell
 Version:          6.20.00
-Release:          12%{?dist}
+Release:          13%{?dist}
 License:          BSD
 
 URL:              http://www.tcsh.org/
@@ -54,7 +54,9 @@ Patch008: tcsh-6.20.00-008-guard-ascii-only-reversion.patch
 Patch009: tcsh-6.20.00-009-fix-regexp-for-backlash-quoting-tests.patch
 Patch010: tcsh-6.20.00-010-fix-memory-consumption-while-loading-corrupted-history.patch
 Patch011: tcsh-6.20.00-011-fix-infinite-loop-after-ctrlC.patch
-
+Patch012: tcsh-6.20.00-012-warrning-history-loading.patch
+Patch013: tcsh-6.20.00-013-prevent-phup-and-record-from-multiple-execution.patch
+Patch014: tcsh-6.20.00-014-call-stderror-consistently-and-avoid-inf-loops.patch
 
 # Downstream patches -- these should be always included when doing rebase:
 # ------------------
@@ -188,6 +190,9 @@ fi
 # =============================================================================
 
 %changelog
+* Mon Nov 16 2020 Jan Macku <jamacku@redhat.com> - 6.20.00-13
+- fix regression caused by corrupted history (#1818766)
+
 * Fri Nov 01 2019 Jan Macku <jamacku@redhat.com> - 6.20.00-12
 - rebuilt