From 8b413bb62c6743db10e7d210fb7924c9502fd60e Mon Sep 17 00:00:00 2001
From: Patrick Lam <plam@MIT.EDU>
Date: Tue, 7 Feb 2006 02:22:50 +0000
Subject: [PATCH] Takashi Iwai <tiwai@suse.de> Don't loop infinitely on
 recursive symlinks (client-side).

---
 ChangeLog     |  7 +++++++
 src/fccache.c | 21 +++++++++++++++------
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 5bb6832..8378d5d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-02-06  Patrick Lam  <plam@mit.edu>
+	    Takashi Iwai  <tiwai@suse.de>
+
+	* src/fccache.c (FcCacheReadDirs, FcCacheRead):
+
+	Don't loop infinitely on recursive symlinks (client-side).
+
 2006-02-06  Takashi Iwai  <tiwai@suse.de>
 	reviewed by: plam
 	* fc-cache/fc-cache.c (scanDirs, main):
diff --git a/src/fccache.c b/src/fccache.c
index e836474..f2a41d4 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -863,7 +863,7 @@ FcDirCacheUnlink (const FcChar8 *dir, FcConfig *config)
 
 static int
 FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache, 
-		 FcStrList *list, FcFontSet * set)
+		 FcStrList *list, FcFontSet * set, FcStrSet *processed_dirs)
 {
     int			ret = 0;
     FcChar8		*dir;
@@ -887,9 +887,9 @@ FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache,
 	name = FcConfigNormalizeFontDir (config, dir);
 	if (name) 
 	{
-	    if ((d = FcGlobalCacheDirFind (cache, (const char *)name)) != NULL &&
-		d->state == FcGCDirUpdated)
+	    if (FcStrSetMember (processed_dirs, dir))
 		continue;
+	    FcStrSetAdd (processed_dirs, dir);
 	}
 
 	subdirs = FcStrSetCreate ();
@@ -955,7 +955,7 @@ FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache,
 	    ret++;
 	    continue;
 	}
-	ret += FcCacheReadDirs (config, cache, sublist, set);
+	ret += FcCacheReadDirs (config, cache, sublist, set, processed_dirs);
     }
     FcStrListDone (list);
     return ret;
@@ -964,15 +964,24 @@ FcCacheReadDirs (FcConfig * config, FcGlobalCache * cache,
 FcFontSet *
 FcCacheRead (FcConfig *config, FcGlobalCache * cache)
 {
-    FcFontSet * s = FcFontSetCreate();
+    FcFontSet 	*s = FcFontSetCreate();
+    FcStrSet 	*processed_dirs;
+
     if (!s) 
 	return 0;
 
-    if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s))
+    processed_dirs = FcStrSetCreate();
+    if (!processed_dirs)
 	goto bail;
 
+    if (FcCacheReadDirs (config, cache, FcConfigGetConfigDirs (config), s, processed_dirs))
+	goto bail1;
+
+    FcStrSetDestroy (processed_dirs);
     return s;
 
+ bail1:
+    FcStrSetDestroy (processed_dirs);
  bail:
     FcFontSetDestroy (s);
     return 0;