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8293598: Enhance InetAddress address handling

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Reviewed-by: skoivu, alanb, aefimov, rhalade, dfuchs
This commit is contained in:
Daniel Jeliński 2022-09-26 19:16:22 +00:00 committed by Henry Jen
parent 51e52c4eb8
commit b7cfb6817b
2 changed files with 13 additions and 8 deletions
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19
src/java.base/share/classes/java/net/InetAddress.java
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@ -1508,6 +1508,10 @@ public sealed class InetAddress implements Serializable permits Inet4Address, In
InetAddress[] ret = new InetAddress[1];
if(addr != null) {
if (addr.length == Inet4Address.INADDRSZ) {
if (numericZone != -1 || ifname != null) {
// IPv4-mapped address must not contain zone-id
throw new UnknownHostException(host + ": invalid IPv4-mapped address");
}
ret[0] = new Inet4Address(null, addr);
} else {
if (ifname != null) {
@ -1552,22 +1556,23 @@ public sealed class InetAddress implements Serializable permits Inet4Address, In
int percent = s.indexOf ('%');
int slen = s.length();
int digit, zone=0;
int multmax = Integer.MAX_VALUE / 10; // for int overflow detection
if (percent == -1) {
return -1;
}
for (int i=percent+1; i<slen; i++) {
char c = s.charAt(i);
if (c == ']') {
if (i == percent+1) {
/* empty per-cent field */
return -1;
}
break;
if ((digit = IPAddressUtil.parseAsciiDigit(c, 10)) < 0) {
return -1;
}
if ((digit = Character.digit (c, 10)) < 0) {
if (zone > multmax) {
return -1;
}
zone = (zone * 10) + digit;
if (zone < 0) {
return -1;
}
}
return zone;
}

2
src/java.base/share/classes/sun/net/util/IPAddressUtil.java
View File

@ -829,7 +829,7 @@ public class IPAddressUtil {
}
// Parse ASCII digit in given radix
private static int parseAsciiDigit(char c, int radix) {
public static int parseAsciiDigit(char c, int radix) {
assert radix == OCTAL || radix == DECIMAL || radix == HEXADECIMAL;
if (radix == HEXADECIMAL) {
return parseAsciiHexDigit(c);