[PATCH] drop unused extra char from getnameinfo() local buffer

[Andre McCurdy <armccurdy@gmail.com>]

The num local buffer is only passed to itoa(), which expects a buffer
size of 3*sizeof(int), not 3*sizeof(int)+1. Also change the data type
of the port local variable to clarify that itoa() only handles
unsigned values.
---
 src/network/getnameinfo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/network/getnameinfo.c b/src/network/getnameinfo.c
index f77e73a..02c2c09 100644
--- a/src/network/getnameinfo.c
+++ b/src/network/getnameinfo.c
@@ -124,7 +124,7 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t sl,
 	int flags)
 {
 	char ptr[PTR_MAX];
-	char buf[256], num[3*sizeof(int)+1];
+	char buf[256], num[3*sizeof(int)];
 	int af = sa->sa_family;
 	unsigned char *a;
 	unsigned scopeid;
@@ -184,7 +184,7 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t sl,
 
 	if (serv && servlen) {
 		char *p = buf;
-		int port = ntohs(((struct sockaddr_in *)sa)->sin_port);
+		unsigned port = ntohs(((struct sockaddr_in *)sa)->sin_port);
 		buf[0] = 0;
 		if (!(flags & NI_NUMERICSERV))
 			reverse_services(buf, port, flags & NI_DGRAM);
-- 
1.9.1