X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fnetwork%2Finet_pton.c;h=5c4850a685519f44200333acc882c2b6529b8e94;hb=b10d0230c1837be34e4ece7d6b11d19f1b578b9f;hp=349c4025079d699b53fcd732a59315e716b05757;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/network/inet_pton.c b/src/network/inet_pton.c
index 349c4025..5c4850a6 100644
--- a/src/network/inet_pton.c
+++ b/src/network/inet_pton.c
@@ -4,14 +4,23 @@
 #include <stdlib.h>
 #include <ctype.h>
 #include <errno.h>
-#include "__dns.h"
+#include <string.h>
 
-int inet_pton(int af, const char *s, void *a0)
+static int hexval(unsigned c)
 {
+	if (c-'0'<10) return c-'0';
+	c |= 32;
+	if (c-'a'<6) return c-'a'+10;
+	return -1;
+}
+
+int inet_pton(int af, const char *restrict s, void *restrict a0)
+{
+	uint16_t ip[8];
 	unsigned char *a = a0;
 	const char *z;
 	unsigned long x;
-	int i;
+	int i, j, v, d, brk=-1, need_v4=0;
 
 	/* Reimplement this because inet_pton cannot accept special v4 forms */
 	if (af==AF_INET) {
@@ -21,11 +30,49 @@ int inet_pton(int af, const char *s, void *a0)
 				return 0;
 			s=z+1;
 		}
-		return 0;
-	} else if (af==AF_INET6) {
-		return !__ipparse(a, AF_INET6, s);
+		return 1;
+	} else if (af!=AF_INET6) {
+		errno = EAFNOSUPPORT;
+		return -1;
 	}
 
-	errno = EAFNOSUPPORT;
-	return 0;
+	if (s[0]==':' && s[1]==':') s++;
+
+	for (i=0; ; i++, s+=j+1) {
+		if (s[0]==':' && brk<0) {
+			brk=i;
+			j=0;
+			ip[i]=0;
+			if (!s[1]) break;
+			continue;
+		}
+		if (hexval(s[0])<0) return -1;
+		while (s[0]=='0' && s[1]=='0') s++;
+		for (v=j=0; j<5 && (d=hexval(s[j]))>=0; j++)
+			v=16*v+d;
+		if (v > 65535) return -1;
+		ip[i] = v;
+		if (!s[j]) {
+			if (brk<0 && i!=7) return -1;
+			break;
+		}
+		if (i<7) {
+			if (s[j]==':') continue;
+			if (s[j]!='.') return -1;
+			need_v4=1;
+			i++;
+			break;
+		}
+		return -1;
+	}
+	if (brk>=0) {
+		memmove(ip+brk+7-i, ip+brk, 2*(i+1-brk));
+		for (j=0; j<7-i; j++) ip[brk+j] = 0;
+	}
+	for (j=0; j<8; j++) {
+		*a++ = ip[j]>>8;
+		*a++ = ip[j];
+	}
+	if (need_v4 &&inet_pton(AF_INET, (void *)s, a-4) <= 0) return -1;
+	return 1;
 }