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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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