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-rw-r--r--print-sunatm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/print-sunatm.c b/print-sunatm.c
index eaa7125d..c46598d4 100644
--- a/print-sunatm.c
+++ b/print-sunatm.c
@@ -81,7 +81,7 @@ sunatm_if_print(netdissect_options *ndo,
ND_PRINT((ndo, EXTRACT_U_1(p + DIR_POS) & 0x80 ? "Tx: " : "Rx: "));
}
- switch (p[DIR_POS] & 0x0f) {
+ switch (EXTRACT_U_1(p + DIR_POS) & 0x0f) {
case PT_LANE:
traftype = ATM_LANE;