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src/java.base/share/native/libnet/net_util.h

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 34  * Macros and misc constants
 35  */
 36 
 37 #define MAX_PACKET_LEN 65536
 38 
 39 #define NET_WAIT_READ    0x01
 40 #define NET_WAIT_WRITE   0x02
 41 #define NET_WAIT_CONNECT 0x04
 42 
 43 /************************************************************************
 44  * Cached field IDs
 45  *
 46  * The naming convention for field IDs is
 47  *      <class abbrv>_<fieldName>ID
 48  */
 49 extern jclass ia_class;
 50 extern jfieldID iac_addressID;
 51 extern jfieldID iac_familyID;
 52 extern jfieldID iac_hostNameID;
 53 extern jfieldID iac_origHostNameID;
 54 extern jfieldID ia_preferIPv6AddressID;
 55 
 56 JNIEXPORT void JNICALL initInetAddressIDs(JNIEnv *env);
 57 
 58 /** (Inet6Address accessors)
 59  * set_ methods return JNI_TRUE on success JNI_FALSE on error
 60  * get_ methods that return int/boolean, return -1 on error
 61  * get_ methods that return objects return NULL on error.
 62  */
 63 extern jboolean setInet6Address_scopeifname(JNIEnv *env, jobject ia6Obj, jobject scopeifname);
 64 extern unsigned int getInet6Address_scopeid(JNIEnv *env, jobject ia6Obj);
 65 extern jboolean setInet6Address_scopeid(JNIEnv *env, jobject ia6Obj, int scopeid);
 66 extern jboolean getInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *dest);
 67 extern jboolean setInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *address);
 68 
 69 extern void setInetAddress_addr(JNIEnv *env, jobject iaObj, int address);
 70 extern void setInetAddress_family(JNIEnv *env, jobject iaObj, int family);
 71 extern void setInetAddress_hostName(JNIEnv *env, jobject iaObj, jobject h);
 72 extern int getInetAddress_addr(JNIEnv *env, jobject iaObj);
 73 extern int getInetAddress_family(JNIEnv *env, jobject iaObj);
 74 

175 
176 JNIEXPORT int JNICALL
177 NET_SetSockOpt(int fd, int level, int opt, const void *arg, int len);
178 
179 JNIEXPORT int JNICALL
180 NET_Bind(int fd, SOCKETADDRESS *sa, int len);
181 
182 JNIEXPORT int JNICALL
183 NET_MapSocketOption(jint cmd, int *level, int *optname);
184 
185 JNIEXPORT int JNICALL
186 NET_MapSocketOptionV6(jint cmd, int *level, int *optname);
187 
188 JNIEXPORT jint JNICALL
189 NET_EnableFastTcpLoopback(int fd);
190 
191 unsigned short in_cksum(unsigned short *addr, int len);
192 
193 jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout);
194 




195 #endif /* NET_UTILS_H */

 34  * Macros and misc constants
 35  */
 36 
 37 #define MAX_PACKET_LEN 65536
 38 
 39 #define NET_WAIT_READ    0x01
 40 #define NET_WAIT_WRITE   0x02
 41 #define NET_WAIT_CONNECT 0x04
 42 
 43 /************************************************************************
 44  * Cached field IDs
 45  *
 46  * The naming convention for field IDs is
 47  *      <class abbrv>_<fieldName>ID
 48  */
 49 extern jclass ia_class;
 50 extern jfieldID iac_addressID;
 51 extern jfieldID iac_familyID;
 52 extern jfieldID iac_hostNameID;
 53 extern jfieldID iac_origHostNameID;

 54 
 55 JNIEXPORT void JNICALL initInetAddressIDs(JNIEnv *env);
 56 
 57 /** (Inet6Address accessors)
 58  * set_ methods return JNI_TRUE on success JNI_FALSE on error
 59  * get_ methods that return int/boolean, return -1 on error
 60  * get_ methods that return objects return NULL on error.
 61  */
 62 extern jboolean setInet6Address_scopeifname(JNIEnv *env, jobject ia6Obj, jobject scopeifname);
 63 extern unsigned int getInet6Address_scopeid(JNIEnv *env, jobject ia6Obj);
 64 extern jboolean setInet6Address_scopeid(JNIEnv *env, jobject ia6Obj, int scopeid);
 65 extern jboolean getInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *dest);
 66 extern jboolean setInet6Address_ipaddress(JNIEnv *env, jobject ia6Obj, char *address);
 67 
 68 extern void setInetAddress_addr(JNIEnv *env, jobject iaObj, int address);
 69 extern void setInetAddress_family(JNIEnv *env, jobject iaObj, int family);
 70 extern void setInetAddress_hostName(JNIEnv *env, jobject iaObj, jobject h);
 71 extern int getInetAddress_addr(JNIEnv *env, jobject iaObj);
 72 extern int getInetAddress_family(JNIEnv *env, jobject iaObj);
 73 

174 
175 JNIEXPORT int JNICALL
176 NET_SetSockOpt(int fd, int level, int opt, const void *arg, int len);
177 
178 JNIEXPORT int JNICALL
179 NET_Bind(int fd, SOCKETADDRESS *sa, int len);
180 
181 JNIEXPORT int JNICALL
182 NET_MapSocketOption(jint cmd, int *level, int *optname);
183 
184 JNIEXPORT int JNICALL
185 NET_MapSocketOptionV6(jint cmd, int *level, int *optname);
186 
187 JNIEXPORT jint JNICALL
188 NET_EnableFastTcpLoopback(int fd);
189 
190 unsigned short in_cksum(unsigned short *addr, int len);
191 
192 jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout);
193 
194 int lookupCharacteristicsToAddressFamily(int characteristics);
195 
196 int addressesInSystemOrder(int characteristics);
197 
198 #endif /* NET_UTILS_H */
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