X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Fgetservbyport_r.c;h=b7f21c6b398a52c4eeb61ea9a94f12a1e88e7b71;hb=2e5fff43dd7fc808197744c67cca7908ac19bb4f;hp=a0a7caecf77e8dd89bbbc3aa3ee3d3b4112ac08a;hpb=75fff40b9b536e0e6847d17ecc076894ca7b7068;p=musl

diff --git a/src/network/getservbyport_r.c b/src/network/getservbyport_r.c
index a0a7caec..b7f21c6b 100644
--- a/src/network/getservbyport_r.c
+++ b/src/network/getservbyport_r.c
@@ -5,6 +5,7 @@
 #include <inttypes.h>
 #include <errno.h>
 #include <string.h>
+#include <stdlib.h>
 
 int getservbyport_r(int port, const char *prots,
 	struct servent *se, char *buf, size_t buflen, struct servent **res)
@@ -20,6 +21,7 @@ int getservbyport_r(int port, const char *prots,
 		if (r) r = getservbyport_r(port, "udp", se, buf, buflen, res);
 		return r;
 	}
+	*res = 0;
 
 	/* Align buffer */
 	i = (uintptr_t)buf & sizeof(char *)-1;
@@ -50,6 +52,9 @@ int getservbyport_r(int port, const char *prots,
 		break;
 	}
 
+	/* A numeric port string is not a service record. */
+	if (strtol(buf, 0, 10)==ntohs(port)) return ENOENT;
+
 	*res = se;
 	return 0;
 }