Import less v409, fixes a rather serious bug which causes

crashes when searching for invalid UTF-8 sequence.

10 files changed, 21 insertions, 15 deletions

diff --git a/contrib/less/NEWS b/contrib/less/NEWS
index f251a1e..0154225 100644
--- a/contrib/less/NEWS
+++ b/contrib/less/NEWS
@@ -13,7 +13,7 @@
 ======================================================================
 
 
-	Major changes between "less" versions 406 and 408
+	Major changes between "less" versions 406 and 409
 
 * Support CSI escape sequences, like SGR escape sequences.
 
@@ -23,6 +23,8 @@
 
 * Fix configure bug on systems which don't support langinfo.h.
 
+* Fix crash when searching text containing certain invalid UTF-8 sequences.
+
 ======================================================================
 
 	Major changes between "less" versions 394 and 406
@@ -695,3 +697,4 @@
 
 
 
+
diff --git a/contrib/less/README b/contrib/less/README
index ace7bf0..73329d6 100644
--- a/contrib/less/README
+++ b/contrib/less/README
@@ -1,7 +1,7 @@
 
-                            Less, version 408
+                            Less, version 409
 
-    This is the distribution of less, version 408, released 01 Oct 2007.
+    This is the distribution of less, version 409, released 12 Oct 2007.
     This program is part of the GNU project (http://www.gnu.org).
 
     This program is free software.  You may redistribute it and/or
diff --git a/contrib/less/charset.c b/contrib/less/charset.c
index 628218d..37d344d 100644
--- a/contrib/less/charset.c
+++ b/contrib/less/charset.c
@@ -668,6 +668,7 @@ step_char(pp, dir, limit)
 	char *limit;
 {
 	LWCHAR ch;
+	int len;
 	char *p = *pp;
 
 	if (!utf_mode)
@@ -679,14 +680,15 @@ step_char(pp, dir, limit)
 			ch = (LWCHAR) ((p > limit) ? *--p : 0);
 	} else if (dir > 0)
 	{
-		if (p + utf_len(*p) > limit)
+		len = utf_len(*p);
+		if (p + len > limit)
+		{
 			ch = 0;
-		else
+			p = limit;
+		} else
 		{
 			ch = get_wchar(p);
-			p++;
-			while (IS_UTF8_TRAIL(*p))
-				p++;
+			p += len;
 		}
 	} else
 	{
diff --git a/contrib/less/less.man b/contrib/less/less.man
index 217a321..773c7b9 100644
--- a/contrib/less/less.man
+++ b/contrib/less/less.man
@@ -1544,4 +1544,4 @@ LESS(1)                                                                LESS(1)
 
 
 
-                           Version 408: 01 Oct 2007                    LESS(1)
+                           Version 409: 12 Oct 2007                    LESS(1)
diff --git a/contrib/less/less.nro b/contrib/less/less.nro
index 5399e83..483e194 100644
--- a/contrib/less/less.nro
+++ b/contrib/less/less.nro
@@ -1,4 +1,4 @@
-.TH LESS 1 "Version 408: 01 Oct 2007"
+.TH LESS 1 "Version 409: 12 Oct 2007"
 .SH NAME
 less \- opposite of more
 .SH SYNOPSIS
diff --git a/contrib/less/lessecho.man b/contrib/less/lessecho.man
index 2bf8c9e..588f70a 100644
--- a/contrib/less/lessecho.man
+++ b/contrib/less/lessecho.man
@@ -46,4 +46,4 @@ LESSECHO(1)                                                        LESSECHO(1)
 
 
 
-                           Version 408: 01 Oct 2007                LESSECHO(1)
+                           Version 409: 12 Oct 2007                LESSECHO(1)
diff --git a/contrib/less/lessecho.nro b/contrib/less/lessecho.nro
index 06c3936..d9dd628 100644
--- a/contrib/less/lessecho.nro
+++ b/contrib/less/lessecho.nro
@@ -1,4 +1,4 @@
-.TH LESSECHO 1 "Version 408: 01 Oct 2007"
+.TH LESSECHO 1 "Version 409: 12 Oct 2007"
 .SH NAME
 lessecho \- expand metacharacters
 .SH SYNOPSIS
diff --git a/contrib/less/lesskey.man b/contrib/less/lesskey.man
index b4d4e2f..f951ea4 100644
--- a/contrib/less/lesskey.man
+++ b/contrib/less/lesskey.man
@@ -357,4 +357,4 @@ LESSKEY(1)                                                          LESSKEY(1)
 
 
 
-                           Version 408: 01 Oct 2007                 LESSKEY(1)
+                           Version 409: 12 Oct 2007                 LESSKEY(1)
diff --git a/contrib/less/lesskey.nro b/contrib/less/lesskey.nro
index a49a1c0..afc3586 100644
--- a/contrib/less/lesskey.nro
+++ b/contrib/less/lesskey.nro
@@ -1,4 +1,4 @@
-.TH LESSKEY 1 "Version 408: 01 Oct 2007"
+.TH LESSKEY 1 "Version 409: 12 Oct 2007"
 .SH NAME
 lesskey \- specify key bindings for less
 .SH SYNOPSIS
diff --git a/contrib/less/version.c b/contrib/less/version.c
index a4d7ea7..1fce12e 100644
--- a/contrib/less/version.c
+++ b/contrib/less/version.c
@@ -695,6 +695,7 @@ v405  6/17/07	Fix display bug when using -w option.
 v406  6/17/07	Fix secure build.
 v407  8/16/07	Fix bugs; support CSI chars.
 v408  10/1/07	Fix bug in -i with non-ASCII chars.
+v409  10/12/07	Fix crash when viewing text with invalid UTF-8 sequences.
 */
 
-char version[] = "408";
+char version[] = "409";