Blame SOURCES/kde-workspace-kdm_local_ipv6.patch

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--- ./kdm/backend/auth.c	2015-02-06 17:59:27.473734701 -0600
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+++ ./kdm/backend/auth.c.orig	2015-02-06 18:46:13.072441136 -0600
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@@ -44,6 +44,10 @@ 
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 #include <sys/ioctl.h>
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+#ifdef XDMCP
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+# include <string.h>
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+#endif
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+
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 #include "dm_socket.h"
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 #ifdef DNETCONN
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 # include <netdnet/dnetdb.h>
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@@ -1075,10 +1079,28 @@ 
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 static int
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 convertAuthAddr(char *saddr, int *len, CARD8 **addr)
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 {
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+    static const unsigned char ipv6_lo[] = {
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+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
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+    };
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+
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+    static const unsigned char ipv4_lo[] = {
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+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+        0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01
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+    };
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+
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     int ret = convertAddr(saddr, len, addr);
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-    if (ret == FamilyInternet &&
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-            ((struct in_addr *)*addr)->s_addr == htonl(0x7F000001L))
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-        ret = FamilyLocal;
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+
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+    if (ret == FamilyInternet) {
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+        if (((struct in_addr *)*addr)->s_addr == htonl(0x7F000001L))
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+            ret = FamilyLocal;
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+    } else if (ret == FamilyInternet6) {
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+	if (memcmp(*addr, ipv6_lo, sizeof ipv6_lo) == 0)
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+            ret = FamilyLocal;
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+        else if (memcmp(*addr, ipv4_lo, sizeof ipv4_lo) == 0)
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+            ret = FamilyLocal;
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+    }
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+
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     return ret;
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 }
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