29
30 /**
31 * Determines the ephemeral port range in use on this system.
32 * If this cannot be determined, then the default settings
33 * of the OS are returned.
34 */
35
36 public final class PortConfig {
37
38 private static int defaultUpper, defaultLower;
39 private static final int upper, lower;
40
41 private PortConfig() {}
42
43 static {
44 jdk.internal.loader.BootLoader.loadLibrary("net");
45 String os = GetPropertyAction.privilegedGetProperty("os.name");
46 if (os.startsWith("Linux")) {
47 defaultLower = 32768;
48 defaultUpper = 61000;
49 } else if (os.startsWith("SunOS")) {
50 defaultLower = 32768;
51 defaultUpper = 65535;
52 } else if (os.contains("OS X")) {
53 defaultLower = 49152;
54 defaultUpper = 65535;
55 } else if (os.startsWith("AIX")) {
56 // The ephemeral port is OS version dependent on AIX:
57 // http://publib.boulder.ibm.com/infocenter/aix/v7r1/topic/com.ibm.aix.rsct315.admin/bl503_ephport.htm
58 // However, on AIX 5.3 / 6.1 / 7.1 we always see the
59 // settings below by using:
60 // /usr/sbin/no -a | fgrep ephemeral
61 defaultLower = 32768;
62 defaultUpper = 65535;
63 } else {
64 throw new InternalError(
65 "sun.net.PortConfig: unknown OS");
66 }
67
68 int v = getLower0();
69 if (v == -1) {
70 v = defaultLower;
71 }
|
29
30 /**
31 * Determines the ephemeral port range in use on this system.
32 * If this cannot be determined, then the default settings
33 * of the OS are returned.
34 */
35
36 public final class PortConfig {
37
38 private static int defaultUpper, defaultLower;
39 private static final int upper, lower;
40
41 private PortConfig() {}
42
43 static {
44 jdk.internal.loader.BootLoader.loadLibrary("net");
45 String os = GetPropertyAction.privilegedGetProperty("os.name");
46 if (os.startsWith("Linux")) {
47 defaultLower = 32768;
48 defaultUpper = 61000;
49 } else if (os.contains("OS X")) {
50 defaultLower = 49152;
51 defaultUpper = 65535;
52 } else if (os.startsWith("AIX")) {
53 // The ephemeral port is OS version dependent on AIX:
54 // http://publib.boulder.ibm.com/infocenter/aix/v7r1/topic/com.ibm.aix.rsct315.admin/bl503_ephport.htm
55 // However, on AIX 5.3 / 6.1 / 7.1 we always see the
56 // settings below by using:
57 // /usr/sbin/no -a | fgrep ephemeral
58 defaultLower = 32768;
59 defaultUpper = 65535;
60 } else {
61 throw new InternalError(
62 "sun.net.PortConfig: unknown OS");
63 }
64
65 int v = getLower0();
66 if (v == -1) {
67 v = defaultLower;
68 }
|