From: Patrick Lam <plam@MIT.EDU>
Date: Mon, 3 Oct 2005 19:51:11 +0000 (+0000)
Subject: Ensure that a directory cache has the appropriate section before reporting
X-Git-Tag: fc-2_3_92~31
X-Git-Url: https://git.wh0rd.org/?a=commitdiff_plain;h=6bf2380478f825a6135527133a03869e0ae18742;p=fontconfig.git

Ensure that a directory cache has the appropriate section before reporting
    that it is valid (reported by Matthias Clasen).
---

diff --git a/ChangeLog b/ChangeLog
index 318d26a..d85f2b2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2005-10-03  Patrick Lam  <plam@mit.edu>
+	* src/fccache.c (FcDirCacheValid):
+
+	Ensure that a directory cache has the appropriate section
+	before reporting that it is valid (reported by Matthias Clasen).
+
 2005-09-29  Mathias Hasselmann  <mathias.hasselmann@gmx.de>
 
         reviewed by: plam
diff --git a/src/fccache.c b/src/fccache.c
index d001e2b..7ff9fc6 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -522,6 +522,9 @@ FcDirCacheValid (const FcChar8 *dir)
 {
     FcChar8     *cache_file = FcStrPlus (dir, (FcChar8 *) "/" FC_DIR_CACHE_FILE);
     struct stat file_stat, dir_stat;
+    int 	fd;
+    off_t	current_arch_start;
+    char 	*current_arch_machine_name;
 
     if (stat ((char *) dir, &dir_stat) < 0)
     {
@@ -533,6 +536,18 @@ FcDirCacheValid (const FcChar8 *dir)
         FcStrFree (cache_file);
         return FcFalse;
     }
+
+    current_arch_machine_name = FcCacheMachineSignature();
+    fd = open(cache_file, O_RDONLY);
+    if (fd == -1)
+        return FcFalse;
+
+    current_arch_start = FcCacheSkipToArch(fd, current_arch_machine_name);
+    close (fd);
+
+    if (current_arch_start < 0)
+        return FcFalse;
+
     FcStrFree (cache_file);
     /*
      * If the directory has been modified more recently than