X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Finet_ntop.c;h=14f9f4c4018ed5dc0a3a4c9db1839c411135bfad;hb=c1020cf21e7c09cf313c98b69d5c5af8f3895502;hp=4817187d610587786e555614f912257ad6f848fd;hpb=28af39fe427ffec8b836f4f30450ffc30b03e5c4;p=musl

diff --git a/src/network/inet_ntop.c b/src/network/inet_ntop.c
index 4817187d..14f9f4c4 100644
--- a/src/network/inet_ntop.c
+++ b/src/network/inet_ntop.c
@@ -1,12 +1,10 @@
 #include <sys/socket.h>
-#include <netinet/in.h>
 #include <arpa/inet.h>
-#include <netdb.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
 
-const char *inet_ntop(int af, const void *a0, char *s, socklen_t l)
+const char *inet_ntop(int af, const void *restrict a0, char *restrict s, socklen_t l)
 {
 	const unsigned char *a = a0;
 	int i, j, max, best;
@@ -18,14 +16,20 @@ const char *inet_ntop(int af, const void *a0, char *s, socklen_t l)
 			return s;
 		break;
 	case AF_INET6:
-		memset(buf, 'x', sizeof buf);
-		buf[sizeof buf-1]=0;
-		snprintf(buf, sizeof buf,
-			"%x:%x:%x:%x:%x:%x:%x:%x",
-			256*a[0]+a[1],256*a[2]+a[3],
-			256*a[4]+a[5],256*a[6]+a[7],
-			256*a[8]+a[9],256*a[10]+a[11],
-			256*a[12]+a[13],256*a[14]+a[15]);
+		if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\377\377", 12))
+			snprintf(buf, sizeof buf,
+				"%x:%x:%x:%x:%x:%x:%x:%x",
+				256*a[0]+a[1],256*a[2]+a[3],
+				256*a[4]+a[5],256*a[6]+a[7],
+				256*a[8]+a[9],256*a[10]+a[11],
+				256*a[12]+a[13],256*a[14]+a[15]);
+		else
+			snprintf(buf, sizeof buf,
+				"%x:%x:%x:%x:%x:%x:%d.%d.%d.%d",
+				256*a[0]+a[1],256*a[2]+a[3],
+				256*a[4]+a[5],256*a[6]+a[7],
+				256*a[8]+a[9],256*a[10]+a[11],
+				a[12],a[13],a[14],a[15]);
 		/* Replace longest /(^0|:)[:0]{2,}/ with "::" */
 		for (i=best=0, max=2; buf[i]; i++) {
 			if (i && buf[i] != ':') continue;
@@ -34,7 +38,7 @@ const char *inet_ntop(int af, const void *a0, char *s, socklen_t l)
 		}
 		if (max>2) {
 			buf[best] = buf[best+1] = ':';
-			strcpy(buf+best+2, buf+best+max);
+			memmove(buf+best+2, buf+best+max, i-best-max+1);
 		}
 		if (strlen(buf) < l) {
 			strcpy(s, buf);