1/*
2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include <stdlib.h>
27#include <sys/types.h>
28#include <sys/socket.h>
29#include <unistd.h>
30#include <fcntl.h>
31
32#include "jni.h"
33
34#include "jni.h"
35#include "jni_util.h"
36#include "net_util.h"
37
38#include "sun_nio_ch_InheritedChannel.h"
39
40static int matchFamily(SOCKETADDRESS *sa) {
41 return (sa->sa.sa_family == (ipv6_available() ? AF_INET6 : AF_INET));
42}
43
44JNIEXPORT void JNICALL
45Java_sun_nio_ch_InheritedChannel_initIDs(JNIEnv *env, jclass cla)
46{
47 /* Initialize InetAddress IDs before later use of NET_XXX functions */
48 initInetAddressIDs(env);
49}
50
51JNIEXPORT jobject JNICALL
52Java_sun_nio_ch_InheritedChannel_peerAddress0(JNIEnv *env, jclass cla, jint fd)
53{
54 SOCKETADDRESS sa;
55 socklen_t len = sizeof(SOCKETADDRESS);
56 jobject remote_ia = NULL;
57 jint remote_port;
58
59 if (getpeername(fd, &sa.sa, &len) == 0) {
60 if (matchFamily(&sa)) {
61 remote_ia = NET_SockaddrToInetAddress(env, &sa, (int *)&remote_port);
62 }
63 }
64
65 return remote_ia;
66}
67
68JNIEXPORT jint JNICALL
69Java_sun_nio_ch_InheritedChannel_peerPort0(JNIEnv *env, jclass cla, jint fd)
70{
71 SOCKETADDRESS sa;
72 socklen_t len = sizeof(SOCKETADDRESS);
73 jint remote_port = -1;
74
75 if (getpeername(fd, &sa.sa, &len) == 0) {
76 if (matchFamily(&sa)) {
77 NET_SockaddrToInetAddress(env, &sa, (int *)&remote_port);
78 }
79 }
80
81 return remote_port;
82}
83
84JNIEXPORT jint JNICALL
85Java_sun_nio_ch_InheritedChannel_soType0(JNIEnv *env, jclass cla, jint fd)
86{
87 int sotype;
88 socklen_t arglen = sizeof(sotype);
89 if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *)&sotype, &arglen) == 0) {
90 if (sotype == SOCK_STREAM)
91 return sun_nio_ch_InheritedChannel_SOCK_STREAM;
92 if (sotype == SOCK_DGRAM)
93 return sun_nio_ch_InheritedChannel_SOCK_DGRAM;
94 }
95 return sun_nio_ch_InheritedChannel_UNKNOWN;
96}
97
98JNIEXPORT jint JNICALL
99Java_sun_nio_ch_InheritedChannel_dup(JNIEnv *env, jclass cla, jint fd)
100{
101 int newfd = dup(fd);
102 if (newfd < 0) {
103 JNU_ThrowIOExceptionWithLastError(env, "dup failed");
104 }
105 return (jint)newfd;
106}
107
108JNIEXPORT void JNICALL
109Java_sun_nio_ch_InheritedChannel_dup2(JNIEnv *env, jclass cla, jint fd, jint fd2)
110{
111 if (dup2(fd, fd2) < 0) {
112 JNU_ThrowIOExceptionWithLastError(env, "dup2 failed");
113 }
114}
115
116JNIEXPORT jint JNICALL
117Java_sun_nio_ch_InheritedChannel_open0(JNIEnv *env, jclass cla, jstring path, jint oflag)
118{
119 const char *str;
120 int oflag_actual;
121
122 /* convert to OS specific value */
123 switch (oflag) {
124 case sun_nio_ch_InheritedChannel_O_RDWR :
125 oflag_actual = O_RDWR;
126 break;
127 case sun_nio_ch_InheritedChannel_O_RDONLY :
128 oflag_actual = O_RDONLY;
129 break;
130 case sun_nio_ch_InheritedChannel_O_WRONLY :
131 oflag_actual = O_WRONLY;
132 break;
133 default :
134 JNU_ThrowInternalError(env, "Unrecognized file mode");
135 return -1;
136 }
137
138 str = JNU_GetStringPlatformChars(env, path, NULL);
139 if (str == NULL) {
140 return (jint)-1;
141 } else {
142 int fd = open(str, oflag_actual);
143 if (fd < 0) {
144 JNU_ThrowIOExceptionWithLastError(env, str);
145 }
146 JNU_ReleaseStringPlatformChars(env, path, str);
147 return (jint)fd;
148 }
149}
150
151JNIEXPORT void JNICALL
152Java_sun_nio_ch_InheritedChannel_close0(JNIEnv *env, jclass cla, jint fd)
153{
154 if (close(fd) < 0) {
155 JNU_ThrowIOExceptionWithLastError(env, "close failed");
156 }
157}
158