Don't allow a font alias to point to itself and create a loop

Part of fix for Sun bug 4258475
<http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=4258475>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/fontfile/fontdir.c b/src/fontfile/fontdir.c
index cf68a54..cd9fde1 100644
--- a/src/fontfile/fontdir.c
+++ b/src/fontfile/fontdir.c
@@ -811,6 +811,10 @@ FontFileAddFontAlias (FontDirectoryPtr dir, char *aliasName, char *fontName)
 {
     FontEntryRec	entry;
 
+    if (strcmp(aliasName,fontName) == 0) {
+        /* Don't allow an alias to point to itself and create a loop */
+        return FALSE;
+    }
     entry.name.length = strlen (aliasName);
     CopyISOLatin1Lowered (aliasName, aliasName, entry.name.length);
     entry.name.name = aliasName;