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-rw-r--r--freebsd/sbin/ping6/ping6.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/freebsd/sbin/ping6/ping6.c b/freebsd/sbin/ping6/ping6.c
index 1946f0a0..3bd0a034 100644
--- a/freebsd/sbin/ping6/ping6.c
+++ b/freebsd/sbin/ping6/ping6.c
@@ -2710,7 +2710,7 @@ fill(bp, patp)
char *cp;
for (cp = patp; *cp; cp++)
- if (!isxdigit(*cp))
+ if (!isxdigit((unsigned char) *cp))
errx(1, "patterns must be specified as hex digits");
ii = sscanf(patp,
"%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x%2x",