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Fix patching.

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Submitted by:	Sebastien Santoro <dereckson@espace-win.org>
		Jan Henrik Sylvester <me@janh.de>
Feature safe:	yes
This commit is contained in:
Koop Mast 2012-03-13 11:58:38 +00:00
parent 22e5b6c75f
commit 3fc578cf75
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=293234
1 changed files with 9 additions and 11 deletions
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20
x11-fonts/libXfont/files/patch-src_fontfile_decompress.c
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@ -10,12 +10,10 @@ no good reason. It's derived from a change in libarchive from 2004.
Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
Reviewed-by: Tomas Hoger <thoger@redhat.com>
---
diff --git a/src/fontfile/decompress.c b/src/fontfile/decompress.c
index 0f28c3f..6405d76 100644
--- src/fontfile/decompress.c
+++ src/fontfile/decompress.c
@@ -97,7 +97,7 @@ static char_type magic_header[] = { "\037\235" }; /* 1F 9D */
--- src/fontfile/decompress.c.orig 2011-08-10 22:22:01.000000000 +0200
+++ src/fontfile/decompress.c 2012-03-13 12:55:35.000000000 +0100
@@ -97,7 +97,7 @@ static char_type magic_header[] = { "\03
#define FIRST 257 /* first free entry */
#define CLEAR 256 /* table clear output code */
@ -50,7 +48,7 @@ index 0f28c3f..6405d76 100644
code = getcode (file);
if (code == -1)
break;
@@ -241,26 +236,34 @@ BufCompressedFill (BufFilePtr f)
@@ -241,26 +236,35 @@ BufCompressedFill (BufFilePtr f)
for ( code = 255; code >= 0; code-- )
file->tab_prefix[code] = 0;
file->clear_flg = 1;
@ -73,13 +71,15 @@ index 0f28c3f..6405d76 100644
*stackp++ = finchar;
code = oldcode;
}
-
+
+ /*
+ * The above condition ensures that code < free_ent.
+ * The construction of tab_prefixof in turn guarantees that
+ * each iteration decreases code and therefore stack usage is
+ * bound by 1 << BITS - 256.
+ */
+
/*
* Generate output characters in reverse order
*/
@ -90,7 +90,7 @@ index 0f28c3f..6405d76 100644
*stackp++ = file->tab_suffix[code];
code = file->tab_prefix[code];
}
@@ -270,7 +273,7 @@ BufCompressedFill (BufFilePtr f)
@@ -270,7 +274,7 @@ BufCompressedFill (BufFilePtr f)
/*
* Generate the new entry.
*/
@ -99,5 +99,3 @@ index 0f28c3f..6405d76 100644
file->tab_prefix[code] = (unsigned short)oldcode;
file->tab_suffix[code] = finchar;
file->free_ent = code+1;
--
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