78 /*
79 * EXCLBIND socket options only on Solaris
80 */
81 #if defined(__solaris__) && !defined(TCP_EXCLBIND)
82 #define TCP_EXCLBIND 0x21
83 #endif
84 #if defined(__solaris__) && !defined(UDP_EXCLBIND)
85 #define UDP_EXCLBIND 0x0101
86 #endif
87
88 void setDefaultScopeID(JNIEnv *env, struct sockaddr *him)
89 {
90 #ifdef MACOSX
91 static jclass ni_class = NULL;
92 static jfieldID ni_defaultIndexID;
93 if (ni_class == NULL) {
94 jclass c = (*env)->FindClass(env, "java/net/NetworkInterface");
95 CHECK_NULL(c);
96 c = (*env)->NewGlobalRef(env, c);
97 CHECK_NULL(c);
98 ni_defaultIndexID = (*env)->GetStaticFieldID(
99 env, c, "defaultIndex", "I");
100 ni_class = c;
101 }
102 int defaultIndex;
103 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)him;
104 if (sin6->sin6_family == AF_INET6 && (sin6->sin6_scope_id == 0)) {
105 defaultIndex = (*env)->GetStaticIntField(env, ni_class,
106 ni_defaultIndexID);
107 sin6->sin6_scope_id = defaultIndex;
108 }
109 #endif
110 }
111
112 int getDefaultScopeID(JNIEnv *env) {
113 int defaultIndex = 0;
114 static jclass ni_class = NULL;
115 static jfieldID ni_defaultIndexID;
116 if (ni_class == NULL) {
117 jclass c = (*env)->FindClass(env, "java/net/NetworkInterface");
118 CHECK_NULL_RETURN(c, 0);
119 c = (*env)->NewGlobalRef(env, c);
120 CHECK_NULL_RETURN(c, 0);
121 ni_defaultIndexID = (*env)->GetStaticFieldID(env, c,
122 "defaultIndex", "I");
123 ni_class = c;
124 }
125 defaultIndex = (*env)->GetStaticIntField(env, ni_class,
126 ni_defaultIndexID);
127 return defaultIndex;
128 }
129
130 #define RESTARTABLE(_cmd, _result) do { \
131 do { \
132 _result = _cmd; \
133 } while((_result == -1) && (errno == EINTR)); \
134 } while(0)
135
136 int NET_SocketAvailable(int s, jint *pbytes) {
137 int result;
138 RESTARTABLE(ioctl(s, FIONREAD, pbytes), result);
139 // note: ioctl can return 0 when successful, NET_SocketAvailable
140 // is expected to return 0 on failure and 1 on success.
141 return (result == -1) ? 0 : 1;
142 }
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78 /*
79 * EXCLBIND socket options only on Solaris
80 */
81 #if defined(__solaris__) && !defined(TCP_EXCLBIND)
82 #define TCP_EXCLBIND 0x21
83 #endif
84 #if defined(__solaris__) && !defined(UDP_EXCLBIND)
85 #define UDP_EXCLBIND 0x0101
86 #endif
87
88 void setDefaultScopeID(JNIEnv *env, struct sockaddr *him)
89 {
90 #ifdef MACOSX
91 static jclass ni_class = NULL;
92 static jfieldID ni_defaultIndexID;
93 if (ni_class == NULL) {
94 jclass c = (*env)->FindClass(env, "java/net/NetworkInterface");
95 CHECK_NULL(c);
96 c = (*env)->NewGlobalRef(env, c);
97 CHECK_NULL(c);
98 ni_defaultIndexID = (*env)->GetStaticFieldID(env, c, "defaultIndex", "I");
99 CHECK_NULL(ni_defaultIndexID);
100 ni_class = c;
101 }
102 int defaultIndex;
103 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)him;
104 if (sin6->sin6_family == AF_INET6 && (sin6->sin6_scope_id == 0)) {
105 defaultIndex = (*env)->GetStaticIntField(env, ni_class,
106 ni_defaultIndexID);
107 sin6->sin6_scope_id = defaultIndex;
108 }
109 #endif
110 }
111
112 int getDefaultScopeID(JNIEnv *env) {
113 int defaultIndex = 0;
114 static jclass ni_class = NULL;
115 static jfieldID ni_defaultIndexID;
116 if (ni_class == NULL) {
117 jclass c = (*env)->FindClass(env, "java/net/NetworkInterface");
118 CHECK_NULL_RETURN(c, 0);
119 c = (*env)->NewGlobalRef(env, c);
120 CHECK_NULL_RETURN(c, 0);
121 ni_defaultIndexID = (*env)->GetStaticFieldID(env, c, "defaultIndex", "I");
122 CHECK_NULL_RETURN(ni_defaultIndexID, 0);
123 ni_class = c;
124 }
125 defaultIndex = (*env)->GetStaticIntField(env, ni_class,
126 ni_defaultIndexID);
127 return defaultIndex;
128 }
129
130 #define RESTARTABLE(_cmd, _result) do { \
131 do { \
132 _result = _cmd; \
133 } while((_result == -1) && (errno == EINTR)); \
134 } while(0)
135
136 int NET_SocketAvailable(int s, jint *pbytes) {
137 int result;
138 RESTARTABLE(ioctl(s, FIONREAD, pbytes), result);
139 // note: ioctl can return 0 when successful, NET_SocketAvailable
140 // is expected to return 0 on failure and 1 on success.
141 return (result == -1) ? 0 : 1;
142 }
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