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-rw-r--r--src/network/getservbyport_r.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/network/getservbyport_r.c b/src/network/getservbyport_r.c
index b7f21c6b..d3a22b8c 100644
--- a/src/network/getservbyport_r.c
+++ b/src/network/getservbyport_r.c
@@ -26,7 +26,7 @@ int getservbyport_r(int port, const char *prots,
 	/* Align buffer */
 	i = (uintptr_t)buf & sizeof(char *)-1;
 	if (!i) i = sizeof(char *);
-	if (buflen < 3*sizeof(char *)-i)
+	if (buflen <= 3*sizeof(char *)-i)
 		return ERANGE;
 	buf += sizeof(char *)-i;
 	buflen -= sizeof(char *)-i;