--- a/jdk/src/java.base/unix/native/libnet/NetworkInterface.c Thu May 12 16:06:17 2016 +0100
+++ b/jdk/src/java.base/unix/native/libnet/NetworkInterface.c Thu May 12 16:33:37 2016 +0100
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -23,7 +23,6 @@
* questions.
*/
-
#include <errno.h>
#include <strings.h>
#if defined(_ALLBSD_SOURCE) && defined(__OpenBSD__)
@@ -38,14 +37,14 @@
#include <net/if.h>
#include <net/if_arp.h>
-#ifdef __solaris__
+#if defined(__solaris__)
#include <sys/dlpi.h>
#include <fcntl.h>
#include <stropts.h>
#include <sys/sockio.h>
#endif
-#ifdef __linux__
+#if defined(__linux__)
#include <sys/ioctl.h>
#include <bits/ioctls.h>
#include <sys/utsname.h>
@@ -59,10 +58,6 @@
#include <sys/kinfo.h>
#endif
-#ifdef __linux__
-#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
-#endif
-
#if defined(_ALLBSD_SOURCE)
#include <sys/param.h>
#include <sys/ioctl.h>
@@ -80,6 +75,10 @@
#include "jni_util.h"
#include "net_util.h"
+#if defined(__linux__)
+#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
+#endif
+
typedef struct _netaddr {
struct sockaddr *addr;
struct sockaddr *brdcast;
@@ -135,29 +134,32 @@
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs);
#endif
-static netif *addif(JNIEnv *env, int sock, const char * if_name, netif *ifs, struct sockaddr* ifr_addrP, int family, short prefix);
+static netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
+ struct sockaddr *ifr_addrP, int family, short prefix);
static void freeif(netif *ifs);
static int openSocket(JNIEnv *env, int proto);
static int openSocketWithFallback(JNIEnv *env, const char *ifname);
-static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *name, struct sockaddr *brdcast_store);
+static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *name,
+ struct sockaddr *brdcast_store);
static short getSubnet(JNIEnv *env, int sock, const char *ifname);
static int getIndex(int sock, const char *ifname);
static int getFlags(int sock, const char *ifname, int *flags);
-static int getMacAddress(JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr, unsigned char *buf);
+static int getMacAddress(JNIEnv *env, int sock, const char *ifname,
+ const struct in_addr *addr, unsigned char *buf);
static int getMTU(JNIEnv *env, int sock, const char *ifname);
-
-#ifdef __solaris__
-static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family);
-static int getMacFromDevice(JNIEnv *env, const char* ifname, unsigned char* retbuf);
+#if defined(__solaris__)
+static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family);
+static int getMacFromDevice(JNIEnv *env, const char *ifname,
+ unsigned char *retbuf);
#ifndef SIOCGLIFHWADDR
-#define SIOCGLIFHWADDR _IOWR('i', 192, struct lifreq)
+#define SIOCGLIFHWADDR _IOWR('i', 192, struct lifreq)
#endif
#endif
@@ -169,27 +171,33 @@
* Method: init
* Signature: ()V
*/
-JNIEXPORT void JNICALL
-Java_java_net_NetworkInterface_init(JNIEnv *env, jclass cls) {
- ni_class = (*env)->FindClass(env,"java/net/NetworkInterface");
+JNIEXPORT void JNICALL Java_java_net_NetworkInterface_init
+ (JNIEnv *env, jclass cls)
+{
+ ni_class = (*env)->FindClass(env, "java/net/NetworkInterface");
CHECK_NULL(ni_class);
ni_class = (*env)->NewGlobalRef(env, ni_class);
CHECK_NULL(ni_class);
- ni_nameID = (*env)->GetFieldID(env, ni_class,"name", "Ljava/lang/String;");
+ ni_nameID = (*env)->GetFieldID(env, ni_class, "name", "Ljava/lang/String;");
CHECK_NULL(ni_nameID);
ni_indexID = (*env)->GetFieldID(env, ni_class, "index", "I");
CHECK_NULL(ni_indexID);
- ni_addrsID = (*env)->GetFieldID(env, ni_class, "addrs", "[Ljava/net/InetAddress;");
+ ni_addrsID = (*env)->GetFieldID(env, ni_class, "addrs",
+ "[Ljava/net/InetAddress;");
CHECK_NULL(ni_addrsID);
- ni_bindsID = (*env)->GetFieldID(env, ni_class, "bindings", "[Ljava/net/InterfaceAddress;");
+ ni_bindsID = (*env)->GetFieldID(env, ni_class, "bindings",
+ "[Ljava/net/InterfaceAddress;");
CHECK_NULL(ni_bindsID);
- ni_descID = (*env)->GetFieldID(env, ni_class, "displayName", "Ljava/lang/String;");
+ ni_descID = (*env)->GetFieldID(env, ni_class, "displayName",
+ "Ljava/lang/String;");
CHECK_NULL(ni_descID);
ni_virutalID = (*env)->GetFieldID(env, ni_class, "virtual", "Z");
CHECK_NULL(ni_virutalID);
- ni_childsID = (*env)->GetFieldID(env, ni_class, "childs", "[Ljava/net/NetworkInterface;");
+ ni_childsID = (*env)->GetFieldID(env, ni_class, "childs",
+ "[Ljava/net/NetworkInterface;");
CHECK_NULL(ni_childsID);
- ni_parentID = (*env)->GetFieldID(env, ni_class, "parent", "Ljava/net/NetworkInterface;");
+ ni_parentID = (*env)->GetFieldID(env, ni_class, "parent",
+ "Ljava/net/NetworkInterface;");
CHECK_NULL(ni_parentID);
ni_ctrID = (*env)->GetMethodID(env, ni_class, "<init>", "()V");
CHECK_NULL(ni_ctrID);
@@ -199,27 +207,28 @@
CHECK_NULL(ni_ibcls);
ni_ibctrID = (*env)->GetMethodID(env, ni_ibcls, "<init>", "()V");
CHECK_NULL(ni_ibctrID);
- ni_ibaddressID = (*env)->GetFieldID(env, ni_ibcls, "address", "Ljava/net/InetAddress;");
+ ni_ibaddressID = (*env)->GetFieldID(env, ni_ibcls, "address",
+ "Ljava/net/InetAddress;");
CHECK_NULL(ni_ibaddressID);
- ni_ib4broadcastID = (*env)->GetFieldID(env, ni_ibcls, "broadcast", "Ljava/net/Inet4Address;");
+ ni_ib4broadcastID = (*env)->GetFieldID(env, ni_ibcls, "broadcast",
+ "Ljava/net/Inet4Address;");
CHECK_NULL(ni_ib4broadcastID);
ni_ib4maskID = (*env)->GetFieldID(env, ni_ibcls, "maskLength", "S");
CHECK_NULL(ni_ib4maskID);
- ni_defaultIndexID = (*env)->GetStaticFieldID(env, ni_class, "defaultIndex", "I");
+ ni_defaultIndexID = (*env)->GetStaticFieldID(env, ni_class, "defaultIndex",
+ "I");
CHECK_NULL(ni_defaultIndexID);
-
initInetAddressIDs(env);
}
-
/*
* Class: java_net_NetworkInterface
* Method: getByName0
* Signature: (Ljava/lang/String;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByName0
- (JNIEnv *env, jclass cls, jstring name) {
-
+ (JNIEnv *env, jclass cls, jstring name)
+{
netif *ifs, *curr;
jboolean isCopy;
const char* name_utf;
@@ -236,9 +245,8 @@
JNU_ThrowOutOfMemoryError(env, NULL);
return NULL;
}
- /*
- * Search the list of interface based on name
- */
+
+ // Search the list of interface based on name
curr = ifs;
while (curr != NULL) {
if (strcmp(name_utf, curr->name) == 0) {
@@ -247,27 +255,26 @@
curr = curr->next;
}
- /* if found create a NetworkInterface */
+ // if found create a NetworkInterface
if (curr != NULL) {;
obj = createNetworkInterface(env, curr);
}
- /* release the UTF string and interface list */
+ // release the UTF string and interface list
(*env)->ReleaseStringUTFChars(env, name, name_utf);
freeif(ifs);
return obj;
}
-
/*
* Class: java_net_NetworkInterface
* Method: getByIndex0
* Signature: (Ljava/lang/String;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByIndex0
- (JNIEnv *env, jclass cls, jint index) {
-
+ (JNIEnv *env, jclass cls, jint index)
+{
netif *ifs, *curr;
jobject obj = NULL;
@@ -279,9 +286,7 @@
return NULL;
}
- /*
- * Search the list of interface based on index
- */
+ // Search the list of interface based on index
curr = ifs;
while (curr != NULL) {
if (index == curr->index) {
@@ -290,7 +295,7 @@
curr = curr->next;
}
- /* if found create a NetworkInterface */
+ // if found create a NetworkInterface
if (curr != NULL) {;
obj = createNetworkInterface(env, curr);
}
@@ -305,8 +310,8 @@
* Signature: (Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
*/
JNIEXPORT jobject JNICALL Java_java_net_NetworkInterface_getByInetAddress0
- (JNIEnv *env, jclass cls, jobject iaObj) {
-
+ (JNIEnv *env, jclass cls, jobject iaObj)
+{
netif *ifs, *curr;
#ifdef AF_INET6
@@ -327,14 +332,13 @@
while (curr != NULL) {
netaddr *addrP = curr->addr;
- /*
- * Iterate through each address on the interface
- */
+ // Iterate through each address on the interface
while (addrP != NULL) {
if (family == addrP->family) {
if (family == AF_INET) {
- int address1 = htonl(((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr);
+ int address1 = htonl(
+ ((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr);
int address2 = getInetAddress_addr(env, iaObj);
if (address1 == address2) {
@@ -345,7 +349,8 @@
#ifdef AF_INET6
if (family == AF_INET6) {
- jbyte *bytes = (jbyte *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr);
+ jbyte *bytes = (jbyte *)&(
+ ((struct sockaddr_in6*)addrP->addr)->sin6_addr);
jbyte caddr[16];
int i;
getInet6Address_ipaddress(env, iaObj, (char *)caddr);
@@ -362,7 +367,6 @@
}
}
#endif
-
}
if (match) {
@@ -377,7 +381,7 @@
curr = curr->next;
}
- /* if found create a NetworkInterface */
+ // if found create a NetworkInterface
if (match) {;
obj = createNetworkInterface(env, curr);
}
@@ -386,15 +390,14 @@
return obj;
}
-
/*
* Class: java_net_NetworkInterface
* Method: getAll
* Signature: ()[Ljava/net/NetworkInterface;
*/
JNIEXPORT jobjectArray JNICALL Java_java_net_NetworkInterface_getAll
- (JNIEnv *env, jclass cls) {
-
+ (JNIEnv *env, jclass cls)
+{
netif *ifs, *curr;
jobjectArray netIFArr;
jint arr_index, ifCount;
@@ -404,7 +407,7 @@
return NULL;
}
- /* count the interface */
+ // count the interface
ifCount = 0;
curr = ifs;
while (curr != NULL) {
@@ -412,17 +415,15 @@
curr = curr->next;
}
- /* allocate a NetworkInterface array */
+ // allocate a NetworkInterface array
netIFArr = (*env)->NewObjectArray(env, ifCount, cls, NULL);
if (netIFArr == NULL) {
freeif(ifs);
return NULL;
}
- /*
- * Iterate through the interfaces, create a NetworkInterface instance
- * for each array element and populate the object.
- */
+ // Iterate through the interfaces, create a NetworkInterface instance
+ // for each array element and populate the object.
curr = ifs;
arr_index = 0;
while (curr != NULL) {
@@ -434,7 +435,7 @@
return NULL;
}
- /* put the NetworkInterface into the array */
+ // put the NetworkInterface into the array
(*env)->SetObjectArrayElement(env, netIFArr, arr_index++, netifObj);
curr = curr->next;
@@ -444,13 +445,14 @@
return netIFArr;
}
-
/*
* Class: java_net_NetworkInterface
* Method: isUp0
* Signature: (Ljava/lang/String;I)Z
*/
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0(JNIEnv *env, jclass cls, jstring name, jint index) {
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isUp0
+ (JNIEnv *env, jclass cls, jstring name, jint index)
+{
int ret = getFlags0(env, name);
return ((ret & IFF_UP) && (ret & IFF_RUNNING)) ? JNI_TRUE : JNI_FALSE;
}
@@ -460,7 +462,9 @@
* Method: isP2P0
* Signature: (Ljava/lang/String;I)Z
*/
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0(JNIEnv *env, jclass cls, jstring name, jint index) {
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isP2P0
+ (JNIEnv *env, jclass cls, jstring name, jint index)
+{
int ret = getFlags0(env, name);
return (ret & IFF_POINTOPOINT) ? JNI_TRUE : JNI_FALSE;
}
@@ -470,7 +474,9 @@
* Method: isLoopback0
* Signature: (Ljava/lang/String;I)Z
*/
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0(JNIEnv *env, jclass cls, jstring name, jint index) {
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_isLoopback0
+ (JNIEnv *env, jclass cls, jstring name, jint index)
+{
int ret = getFlags0(env, name);
return (ret & IFF_LOOPBACK) ? JNI_TRUE : JNI_FALSE;
}
@@ -480,7 +486,9 @@
* Method: supportsMulticast0
* Signature: (Ljava/lang/String;I)Z
*/
-JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0(JNIEnv *env, jclass cls, jstring name, jint index) {
+JNIEXPORT jboolean JNICALL Java_java_net_NetworkInterface_supportsMulticast0
+ (JNIEnv *env, jclass cls, jstring name, jint index)
+{
int ret = getFlags0(env, name);
return (ret & IFF_MULTICAST) ? JNI_TRUE : JNI_FALSE;
}
@@ -490,7 +498,9 @@
* Method: getMacAddr0
* Signature: ([bLjava/lang/String;I)[b
*/
-JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0(JNIEnv *env, jclass class, jbyteArray addrArray, jstring name, jint index) {
+JNIEXPORT jbyteArray JNICALL Java_java_net_NetworkInterface_getMacAddr0
+ (JNIEnv *env, jclass cls, jbyteArray addrArray, jstring name, jint index)
+{
jint addr;
jbyte caddr[4];
struct in_addr iaddr;
@@ -507,12 +517,11 @@
JNU_ThrowOutOfMemoryError(env, NULL);
return NULL;
}
- if ((sock =openSocketWithFallback(env, name_utf)) < 0) {
+ if ((sock = openSocketWithFallback(env, name_utf)) < 0) {
(*env)->ReleaseStringUTFChars(env, name, name_utf);
return JNI_FALSE;
}
-
if (!IS_NULL(addrArray)) {
(*env)->GetByteArrayRegion(env, addrArray, 0, 4, caddr);
addr = ((caddr[0]<<24) & 0xff000000);
@@ -522,7 +531,7 @@
iaddr.s_addr = htonl(addr);
len = getMacAddress(env, sock, name_utf, &iaddr, mac);
} else {
- len = getMacAddress(env, sock, name_utf,NULL, mac);
+ len = getMacAddress(env, sock, name_utf, NULL, mac);
}
if (len > 0) {
ret = (*env)->NewByteArray(env, len);
@@ -530,10 +539,10 @@
/* we may have memory to free at the end of this */
goto fexit;
}
- (*env)->SetByteArrayRegion(env, ret, 0, len, (jbyte *) (mac));
+ (*env)->SetByteArrayRegion(env, ret, 0, len, (jbyte *)(mac));
}
fexit:
- /* release the UTF string and interface list */
+ // release the UTF string and interface list
(*env)->ReleaseStringUTFChars(env, name, name_utf);
close(sock);
@@ -545,8 +554,9 @@
* Method: getMTU0
* Signature: ([bLjava/lang/String;I)I
*/
-
-JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0(JNIEnv *env, jclass class, jstring name, jint index) {
+JNIEXPORT jint JNICALL Java_java_net_NetworkInterface_getMTU0
+ (JNIEnv *env, jclass cls, jstring name, jint index)
+{
jboolean isCopy;
int ret = -1;
int sock;
@@ -564,7 +574,7 @@
return ret;
}
- if ((sock =openSocketWithFallback(env, name_utf)) < 0) {
+ if ((sock = openSocketWithFallback(env, name_utf)) < 0) {
(*env)->ReleaseStringUTFChars(env, name, name_utf);
return JNI_FALSE;
}
@@ -608,19 +618,17 @@
(*env)->ReleaseStringUTFChars(env, name, name_utf);
if (ret < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFFLAGS failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFFLAGS failed");
return -1;
}
return flags;
}
-
-
-
/*
- * Create a NetworkInterface object, populate the name and index, and
- * populate the InetAddress array based on the IP addresses for this
+ * Creates a NetworkInterface object, populates the name, the index, and
+ * populates the InetAddress array based on the IP addresses for this
* interface.
*/
jobject createNetworkInterface(JNIEnv *env, netif *ifs) {
@@ -636,9 +644,7 @@
netif *childP;
jobject tmp;
- /*
- * Create a NetworkInterface object and populate it
- */
+ // Create a NetworkInterface object and populate it
netifObj = (*env)->NewObject(env, ni_class, ni_ctrID);
CHECK_NULL_RETURN(netifObj, NULL);
name = (*env)->NewStringUTF(env, ifs->name);
@@ -646,11 +652,10 @@
(*env)->SetObjectField(env, netifObj, ni_nameID, name);
(*env)->SetObjectField(env, netifObj, ni_descID, name);
(*env)->SetIntField(env, netifObj, ni_indexID, ifs->index);
- (*env)->SetBooleanField(env, netifObj, ni_virutalID, ifs->virtual ? JNI_TRUE : JNI_FALSE);
+ (*env)->SetBooleanField(env, netifObj, ni_virutalID,
+ ifs->virtual ? JNI_TRUE : JNI_FALSE);
- /*
- * Count the number of address on this interface
- */
+ //Count the number of address on this interface
addr_count = 0;
addrP = ifs->addr;
while (addrP != NULL) {
@@ -658,9 +663,7 @@
addrP = addrP->next;
}
- /*
- * Create the array of InetAddresses
- */
+ // Create the array of InetAddresses
addrArr = (*env)->NewObjectArray(env, addr_count, ia_class, NULL);
if (addrArr == NULL) {
return NULL;
@@ -680,7 +683,8 @@
if (addrP->family == AF_INET) {
iaObj = (*env)->NewObject(env, ia4_class, ia4_ctrID);
if (iaObj) {
- setInetAddress_addr(env, iaObj, htonl(((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr));
+ setInetAddress_addr(env, iaObj, htonl(
+ ((struct sockaddr_in*)addrP->addr)->sin_addr.s_addr));
} else {
return NULL;
}
@@ -691,7 +695,8 @@
jobject ia2Obj = NULL;
ia2Obj = (*env)->NewObject(env, ia4_class, ia4_ctrID);
if (ia2Obj) {
- setInetAddress_addr(env, ia2Obj, htonl(((struct sockaddr_in*)addrP->brdcast)->sin_addr.s_addr));
+ setInetAddress_addr(env, ia2Obj, htonl(
+ ((struct sockaddr_in*)addrP->brdcast)->sin_addr.s_addr));
(*env)->SetObjectField(env, ibObj, ni_ib4broadcastID, ia2Obj);
} else {
return NULL;
@@ -709,7 +714,8 @@
int scope=0;
iaObj = (*env)->NewObject(env, ia6_class, ia6_ctrID);
if (iaObj) {
- jboolean ret = setInet6Address_ipaddress(env, iaObj, (char *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr));
+ jboolean ret = setInet6Address_ipaddress(env, iaObj,
+ (char *)&(((struct sockaddr_in6*)addrP->addr)->sin6_addr));
if (ret == JNI_FALSE) {
return NULL;
}
@@ -738,9 +744,7 @@
addrP = addrP->next;
}
- /*
- * See if there is any virtual interface attached to this one.
- */
+ // See if there is any virtual interface attached to this one.
child_count = 0;
childP = ifs->childs;
while (childP) {
@@ -753,10 +757,7 @@
return NULL;
}
- /*
- * Create the NetworkInterface instances for the sub-interfaces as
- * well.
- */
+ // Create the NetworkInterface instances for the sub-interfaces as well.
child_index = 0;
childP = ifs->childs;
while(childP) {
@@ -772,7 +773,7 @@
(*env)->SetObjectField(env, netifObj, ni_bindsID, bindArr);
(*env)->SetObjectField(env, netifObj, ni_childsID, childArr);
- /* return the NetworkInterface */
+ // return the NetworkInterface
return netifObj;
}
@@ -783,10 +784,7 @@
netif *ifs;
int sock;
- /*
- * Enumerate IPv4 addresses
- */
-
+ // Enumerate IPv4 addresses
sock = openSocket(env, AF_INET);
if (sock < 0 && (*env)->ExceptionOccurred(env)) {
return NULL;
@@ -799,19 +797,16 @@
return NULL;
}
- /* return partial list if an exception occurs in the middle of process ???*/
+ // return partial list if an exception occurs in the middle of process ???
- /*
- * If IPv6 is available then enumerate IPv6 addresses.
- */
+ // If IPv6 is available then enumerate IPv6 addresses.
#ifdef AF_INET6
- /* User can disable ipv6 explicitly by -Djava.net.preferIPv4Stack=true,
- * so we have to call ipv6_available()
- */
+ // User can disable ipv6 explicitly by -Djava.net.preferIPv4Stack=true,
+ // so we have to call ipv6_available()
if (ipv6_available()) {
- sock = openSocket(env, AF_INET6);
+ sock = openSocket(env, AF_INET6);
if (sock < 0 && (*env)->ExceptionOccurred(env)) {
freeif(ifs);
return NULL;
@@ -831,18 +826,18 @@
return ifs;
}
-#define CHECKED_MALLOC3(_pointer,_type,_size) \
- do{ \
- _pointer = (_type)malloc( _size ); \
+#define CHECKED_MALLOC3(_pointer, _type, _size) \
+ do { \
+ _pointer = (_type)malloc(_size); \
if (_pointer == NULL) { \
JNU_ThrowOutOfMemoryError(env, "Native heap allocation failed"); \
return ifs; /* return untouched list */ \
} \
- } while(0)
+ } while(0)
/*
- * Free an interface list (including any attached addresses)
+ * Frees an interface list (including any attached addresses)
*/
void freeif(netif *ifs) {
netif *currif = ifs;
@@ -854,24 +849,21 @@
netaddr *next = addrP->next;
free(addrP);
addrP = next;
- }
+ }
- /*
- * Don't forget to free the sub-interfaces.
- */
- if (currif->childs != NULL) {
- freeif(currif->childs);
- }
+ // Don't forget to free the sub-interfaces.
+ if (currif->childs != NULL) {
+ freeif(currif->childs);
+ }
- ifs = currif->next;
- free(currif);
- currif = ifs;
+ ifs = currif->next;
+ free(currif);
+ currif = ifs;
}
}
-netif *addif(JNIEnv *env, int sock, const char * if_name,
- netif *ifs, struct sockaddr* ifr_addrP, int family,
- short prefix)
+netif *addif(JNIEnv *env, int sock, const char *if_name, netif *ifs,
+ struct sockaddr *ifr_addrP, int family, short prefix)
{
netif *currif = ifs, *parent;
netaddr *addrP;
@@ -884,37 +876,34 @@
char name[IFNAMSIZ], vname[IFNAMSIZ];
#endif
- char *name_colonP;
+ char *name_colonP;
int mask;
int isVirtual = 0;
int addr_size;
int flags = 0;
- /*
- * If the interface name is a logical interface then we
- * remove the unit number so that we have the physical
- * interface (eg: hme0:1 -> hme0). NetworkInterface
- * currently doesn't have any concept of physical vs.
- * logical interfaces.
- */
+ // If the interface name is a logical interface then we remove the unit
+ // number so that we have the physical interface (eg: hme0:1 -> hme0).
+ // NetworkInterface currently doesn't have any concept of physical vs.
+ // logical interfaces.
strncpy(name, if_name, ifnam_size);
name[ifnam_size - 1] = '\0';
*vname = 0;
- /*
- * Create and populate the netaddr node. If allocation fails
- * return an un-updated list.
- */
- /*Allocate for addr and brdcast at once*/
+ // Create and populate the netaddr node. If allocation fails
+ // return an un-updated list.
+
+ // Allocate for addr and brdcast at once
#ifdef AF_INET6
- addr_size = (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6);
+ addr_size = (family == AF_INET) ? sizeof(struct sockaddr_in)
+ : sizeof(struct sockaddr_in6);
#else
addr_size = sizeof(struct sockaddr_in);
#endif
- CHECKED_MALLOC3(addrP, netaddr *, sizeof(netaddr)+2*addr_size);
- addrP->addr = (struct sockaddr *)( (char *) addrP+sizeof(netaddr) );
+ CHECKED_MALLOC3(addrP, netaddr *, sizeof(netaddr) + 2 * addr_size);
+ addrP->addr = (struct sockaddr *)((char *)addrP + sizeof(netaddr));
memcpy(addrP->addr, ifr_addrP, addr_size);
addrP->family = family;
@@ -923,8 +912,9 @@
addrP->next = 0;
if (family == AF_INET) {
// Deal with broadcast addr & subnet mask
- struct sockaddr * brdcast_to = (struct sockaddr *) ((char *) addrP + sizeof(netaddr) + addr_size);
- addrP->brdcast = getBroadcast(env, sock, name, brdcast_to );
+ struct sockaddr *brdcast_to =
+ (struct sockaddr *) ((char *)addrP + sizeof(netaddr) + addr_size);
+ addrP->brdcast = getBroadcast(env, sock, name, brdcast_to);
if ((*env)->ExceptionCheck(env) == JNI_TRUE) {
return ifs;
}
@@ -935,36 +925,28 @@
}
}
- /**
- * Deal with virtual interface with colon notation e.g. eth0:1
- */
+ // Deal with virtual interface with colon notation e.g. eth0:1
name_colonP = strchr(name, ':');
if (name_colonP != NULL) {
- /**
- * This is a virtual interface. If we are able to access the parent
- * we need to create a new entry if it doesn't exist yet *and* update
- * the 'parent' interface with the new records.
- */
+ // This is a virtual interface. If we are able to access the parent
+ // we need to create a new entry if it doesn't exist yet *and* update
+ // the 'parent' interface with the new records.
*name_colonP = 0;
if (getFlags(sock, name, &flags) < 0 || flags < 0) {
- // failed to access parent interface do not create parent.
- // We are a virtual interface with no parent.
- isVirtual = 1;
- *name_colonP = ':';
- }
- else{
- // Got access to parent, so create it if necessary.
- // Save original name to vname and truncate name by ':'
- memcpy(vname, name, sizeof(vname) );
- vname[name_colonP - name] = ':';
+ // failed to access parent interface do not create parent.
+ // We are a virtual interface with no parent.
+ isVirtual = 1;
+ *name_colonP = ':';
+ } else {
+ // Got access to parent, so create it if necessary.
+ // Save original name to vname and truncate name by ':'
+ memcpy(vname, name, sizeof(vname) );
+ vname[name_colonP - name] = ':';
}
}
- /*
- * Check if this is a "new" interface. Use the interface
- * name for matching because index isn't supported on
- * Solaris 2.6 & 7.
- */
+ // Check if this is a "new" interface. Use the interface name for
+ // matching because index isn't supported on Solaris 2.6 & 7.
while (currif != NULL) {
if (strcmp(name, currif->name) == 0) {
break;
@@ -972,13 +954,10 @@
currif = currif->next;
}
- /*
- * If "new" then create an netif structure and
- * insert it onto the list.
- */
+ // If "new" then create an netif structure and insert it into the list.
if (currif == NULL) {
CHECKED_MALLOC3(currif, netif *, sizeof(netif) + ifnam_size);
- currif->name = (char *) currif+sizeof(netif);
+ currif->name = (char *)currif + sizeof(netif);
strncpy(currif->name, name, ifnam_size);
currif->name[ifnam_size - 1] = '\0';
currif->index = getIndex(sock, name);
@@ -989,17 +968,13 @@
ifs = currif;
}
- /*
- * Finally insert the address on the interface
- */
+ // Finally insert the address on the interface
addrP->next = currif->addr;
currif->addr = addrP;
parent = currif;
- /**
- * Let's deal with the virtual interface now.
- */
+ // Deal with the virtual interface now.
if (vname[0]) {
netaddr *tmpaddr;
@@ -1014,27 +989,29 @@
if (currif == NULL) {
CHECKED_MALLOC3(currif, netif *, sizeof(netif) + ifnam_size);
- currif->name = (char *) currif + sizeof(netif);
+ currif->name = (char *)currif + sizeof(netif);
strncpy(currif->name, vname, ifnam_size);
currif->name[ifnam_size - 1] = '\0';
currif->index = getIndex(sock, vname);
currif->addr = NULL;
- /* Need to duplicate the addr entry? */
+ // Need to duplicate the addr entry?
currif->virtual = 1;
currif->childs = NULL;
currif->next = parent->childs;
parent->childs = currif;
}
- CHECKED_MALLOC3(tmpaddr, netaddr *, sizeof(netaddr)+2*addr_size);
+ CHECKED_MALLOC3(tmpaddr, netaddr *, sizeof(netaddr) + 2 * addr_size);
memcpy(tmpaddr, addrP, sizeof(netaddr));
if (addrP->addr != NULL) {
- tmpaddr->addr = (struct sockaddr *) ( (char*)tmpaddr + sizeof(netaddr) ) ;
+ tmpaddr->addr = (struct sockaddr *)
+ ((char*)tmpaddr + sizeof(netaddr));
memcpy(tmpaddr->addr, addrP->addr, addr_size);
}
if (addrP->brdcast != NULL) {
- tmpaddr->brdcast = (struct sockaddr *) ((char *) tmpaddr + sizeof(netaddr)+addr_size);
+ tmpaddr->brdcast = (struct sockaddr *)
+ ((char *)tmpaddr + sizeof(netaddr) + addr_size);
memcpy(tmpaddr->brdcast, addrP->brdcast, addr_size);
}
@@ -1045,19 +1022,18 @@
return ifs;
}
-/* Open socket for further ioct calls
- * proto is AF_INET/AF_INET6
+/*
+ * Opens a socket for further ioct calls. proto is one of AF_INET or AF_INET6.
*/
-static int openSocket(JNIEnv *env, int proto){
+static int openSocket(JNIEnv *env, int proto) {
int sock;
if ((sock = socket(proto, SOCK_DGRAM, 0)) < 0) {
- /*
- * If EPROTONOSUPPORT is returned it means we don't have
- * support for this proto so don't throw an exception.
- */
+ // If EPROTONOSUPPORT is returned it means we don't have
+ // support for this proto so don't throw an exception.
if (errno != EPROTONOSUPPORT) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "Socket creation failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "Socket creation failed");
}
return -1;
}
@@ -1068,37 +1044,38 @@
/** Linux, AIX **/
#if defined(__linux__) || defined(_AIX)
-/* Open socket for further ioct calls, try v4 socket first and
- * if it falls return v6 socket
- */
#ifdef AF_INET6
+/*
+ * Opens a socket for further ioct calls. Tries AF_INET socket first and
+ * if it falls return AF_INET6 socket.
+ */
// unused arg ifname and struct if2
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock;
struct ifreq if2;
- if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- if (errno == EPROTONOSUPPORT){
- if ( (sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
- return -1;
- }
- }
- else{ // errno is not NOSUPPORT
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
- return -1;
- }
- }
+ if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ if (errno == EPROTONOSUPPORT) {
+ if ((sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV6 Socket creation failed");
+ return -1;
+ }
+ } else { // errno is not NOSUPPORT
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV4 Socket creation failed");
+ return -1;
+ }
+ }
- /* Linux starting from 2.6.? kernel allows ioctl call with either IPv4 or IPv6 socket regardless of type
- of address of an interface */
-
- return sock;
+ // Linux starting from 2.6.? kernel allows ioctl call with either IPv4 or
+ // IPv6 socket regardless of type of address of an interface.
+ return sock;
}
#else
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env,AF_INET);
}
#endif
@@ -1111,52 +1088,48 @@
unsigned i;
int siocgifconfRequest = SIOCGIFCONF;
-
#if defined(__linux__)
- /* need to do a dummy SIOCGIFCONF to determine the buffer size.
- * SIOCGIFCOUNT doesn't work
- */
+ // need to do a dummy SIOCGIFCONF to determine the buffer size.
+ // SIOCGIFCOUNT doesn't work
ifc.ifc_buf = NULL;
if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGIFCONF failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFCONF failed");
return ifs;
}
#elif defined(_AIX)
ifc.ifc_buf = NULL;
if (ioctl(sock, SIOCGSIZIFCONF, &(ifc.ifc_len)) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGSIZIFCONF failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGSIZIFCONF failed");
return ifs;
}
#endif /* __linux__ */
- CHECKED_MALLOC3(buf,char *, ifc.ifc_len);
+ CHECKED_MALLOC3(buf, char *, ifc.ifc_len);
ifc.ifc_buf = buf;
#if defined(_AIX)
siocgifconfRequest = CSIOCGIFCONF;
#endif
if (ioctl(sock, siocgifconfRequest, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGIFCONF failed");
- (void) free(buf);
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFCONF failed");
+ free(buf);
return ifs;
}
- /*
- * Iterate through each interface
- */
+ // Iterate through each interface
ifreqP = ifc.ifc_req;
- for (i=0; i<ifc.ifc_len/sizeof (struct ifreq); i++, ifreqP++) {
+ for (i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++, ifreqP++) {
#if defined(_AIX)
if (ifreqP->ifr_addr.sa_family != AF_INET) continue;
#endif
- /*
- * Add to the list
- */
- ifs = addif(env, sock, ifreqP->ifr_name, ifs, (struct sockaddr *) & (ifreqP->ifr_addr), AF_INET, 0);
+ // Add to the list
+ ifs = addif(env, sock, ifreqP->ifr_name, ifs,
+ (struct sockaddr *)&(ifreqP->ifr_addr), AF_INET, 0);
- /*
- * If an exception occurred then free the list
- */
+ // If an exception occurred then free the list
if ((*env)->ExceptionOccurred(env)) {
free(buf);
freeif(ifs);
@@ -1164,37 +1137,37 @@
}
}
- /*
- * Free socket and buffer
- */
+ // Free socket and buffer
free(buf);
return ifs;
}
+#if defined(AF_INET6) && defined(__linux__)
+
/*
- * Enumerates and returns all IPv6 interfaces on Linux
+ * Enumerates and returns all IPv6 interfaces on Linux.
*/
-
-#if defined(AF_INET6) && defined(__linux__)
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
FILE *f;
char addr6[40], devname[21];
char addr6p[8][5];
- int plen, scope, dad_status, if_idx;
+ int prefix, scope, dad_status, if_idx;
uint8_t ipv6addr[16];
if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], addr6p[5], addr6p[6], addr6p[7],
- &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+ addr6p[4], addr6p[5], addr6p[6], addr6p[7],
+ &if_idx, &prefix, &scope, &dad_status, devname) != EOF) {
struct netif *ifs_ptr = NULL;
struct netif *last_ptr = NULL;
struct sockaddr_in6 addr;
sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
- addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+ addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+ addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
inet_pton(AF_INET6, addr6, ipv6addr);
memset(&addr, 0, sizeof(struct sockaddr_in6));
@@ -1202,12 +1175,10 @@
addr.sin6_scope_id = if_idx;
- ifs = addif(env, sock, devname, ifs, (struct sockaddr *)&addr, AF_INET6, plen);
-
+ ifs = addif(env, sock, devname, ifs, (struct sockaddr *)&addr,
+ AF_INET6, (short)prefix);
- /*
- * If an exception occurred then return the list as is.
- */
+ // If an exception occurred then return the list as is.
if ((*env)->ExceptionOccurred(env)) {
fclose(f);
return ifs;
@@ -1220,11 +1191,11 @@
#endif
+#if defined(AF_INET6) && defined(_AIX)
+
/*
- * Enumerates and returns all IPv6 interfaces on AIX
+ * Enumerates and returns all IPv6 interfaces on AIX.
*/
-
-#if defined(AF_INET6) && defined(_AIX)
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifconf ifc;
struct ifreq *ifreqP;
@@ -1234,12 +1205,12 @@
unsigned bufsize;
char *cp, *cplimit;
- /* use SIOCGSIZIFCONF to get size for SIOCGIFCONF */
+ // use SIOCGSIZIFCONF to get size for SIOCGIFCONF
ifc.ifc_buf = NULL;
if (ioctl(sock, SIOCGSIZIFCONF, &(ifc.ifc_len)) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGSIZIFCONF failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGSIZIFCONF failed");
return ifs;
}
bufsize = ifc.ifc_len;
@@ -1252,29 +1223,27 @@
ifc.ifc_len = bufsize;
ifc.ifc_buf = buf;
if (ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl CSIOCGIFCONF failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl CSIOCGIFCONF failed");
free(buf);
return ifs;
}
- /*
- * Iterate through each interface
- */
+ // Iterate through each interface
ifreqP = ifc.ifc_req;
cp = (char *)ifc.ifc_req;
cplimit = cp + ifc.ifc_len;
- for ( ; cp < cplimit; cp += (sizeof(ifreqP->ifr_name) + MAX((ifreqP->ifr_addr).sa_len, sizeof(ifreqP->ifr_addr)))) {
+ for (; cp < cplimit;
+ cp += (sizeof(ifreqP->ifr_name) +
+ MAX((ifreqP->ifr_addr).sa_len, sizeof(ifreqP->ifr_addr))))
+ {
ifreqP = (struct ifreq *)cp;
struct ifreq if2;
-
memset((char *)&if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifreqP->ifr_name);
+ strncpy(if2.ifr_name, ifreqP->ifr_name, sizeof(if2.ifr_name) - 1);
- /*
- * Skip interface that aren't UP
- */
+ // Skip interface that aren't UP
if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) >= 0) {
if (!(if2.ifr_flags & IFF_UP)) {
continue;
@@ -1289,16 +1258,11 @@
s6->sin6_scope_id = if2.ifr_site6;
}
- /*
- * Add to the list
- */
+ // Add to the list
ifs = addif(env, sock, ifreqP->ifr_name, ifs,
- (struct sockaddr *)&(ifreqP->ifr_addr),
- AF_INET6, 0);
+ (struct sockaddr *)&(ifreqP->ifr_addr), AF_INET6, 0);
- /*
- * If an exception occurred then free the list
- */
+ // If an exception occurred then free the list
if ((*env)->ExceptionOccurred(env)) {
free(buf);
freeif(ifs);
@@ -1306,24 +1270,21 @@
}
}
- /*
- * Free socket and buffer
- */
+ // Free socket and buffer
free(buf);
return ifs;
}
#endif
-static int getIndex(int sock, const char *name){
- /*
- * Try to get the interface index
- */
+static int getIndex(int sock, const char *name) {
+ // Try to get the interface index
#if defined(_AIX)
return if_nametoindex(name);
#else
struct ifreq if2;
- strcpy(if2.ifr_name, name);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
return -1;
@@ -1333,38 +1294,41 @@
#endif
}
-/**
+/*
* Returns the IPv4 broadcast address of a named interface, if it exists.
* Returns 0 if it doesn't have one.
*/
-static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store) {
- struct sockaddr *ret = NULL;
- struct ifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
-
- /* Let's make sure the interface does have a broadcast address */
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFFLAGS failed");
- return ret;
- }
+static struct sockaddr *getBroadcast
+ (JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store)
+{
+ struct sockaddr *ret = NULL;
+ struct ifreq if2;
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
- if (if2.ifr_flags & IFF_BROADCAST) {
- /* It does, let's retrieve it*/
- if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFBRDADDR failed");
- return ret;
- }
+ // Let's make sure the interface does have a broadcast address.
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFFLAGS failed");
+ return ret;
+ }
- ret = brdcast_store;
- memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
- }
+ if (if2.ifr_flags & IFF_BROADCAST) {
+ // It does, let's retrieve it
+ if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFBRDADDR failed");
+ return ret;
+ }
- return ret;
+ ret = brdcast_store;
+ memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
+ }
+
+ return ret;
}
-/**
+/*
* Returns the IPv4 subnet prefix length (aka subnet mask) for the named
* interface, if it has one, otherwise return -1.
*/
@@ -1372,12 +1336,12 @@
unsigned int mask;
short ret;
struct ifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFNETMASK, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFNETMASK failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFNETMASK failed");
return -1;
}
@@ -1391,12 +1355,15 @@
return ret;
}
-/**
- * Get the Hardware address (usually MAC address) for the named interface.
- * return puts the data in buf, and returns the length, in byte, of the
+/*
+ * Gets the Hardware address (usually MAC address) for the named interface.
+ * On return puts the data in buf, and returns the length, in byte, of the
* MAC address. Returns -1 if there is no hardware address on that interface.
*/
-static int getMacAddress(JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr, unsigned char *buf) {
+static int getMacAddress
+ (JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr,
+ unsigned char *buf)
+{
#if defined (_AIX)
int size;
struct kinfo_ndd *nddp;
@@ -1415,7 +1382,8 @@
nddp = (struct kinfo_ndd *)malloc(size);
if (!nddp) {
- JNU_ThrowOutOfMemoryError(env, "Network interface getMacAddress native buffer allocation failed");
+ JNU_ThrowOutOfMemoryError(env,
+ "Network interface getMacAddress native buffer allocation failed");
return -1;
}
@@ -1436,22 +1404,20 @@
}
return -1;
-
#elif defined(__linux__)
static struct ifreq ifr;
int i;
-
- strcpy(ifr.ifr_name, ifname);
+ memset((char *)&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1);
if (ioctl(sock, SIOCGIFHWADDR, &ifr) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFHWADDR failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFHWADDR failed");
return -1;
}
memcpy(buf, &ifr.ifr_hwaddr.sa_data, IFHWADDRLEN);
- /*
- * All bytes to 0 means no hardware address.
- */
+ // All bytes to 0 means no hardware address.
for (i = 0; i < IFHWADDRLEN; i++) {
if (buf[i] != 0)
@@ -1464,17 +1430,18 @@
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct ifreq if2;
- memset((char *) &if2, 0, sizeof(if2));
+ memset((char *)&if2, 0, sizeof(if2));
if (ifname != NULL) {
- strcpy(if2.ifr_name, ifname);
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
} else {
JNU_ThrowNullPointerException(env, "network interface name is NULL");
return -1;
}
if (ioctl(sock, SIOCGIFMTU, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFMTU failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFMTU failed");
return -1;
}
@@ -1483,11 +1450,10 @@
static int getFlags(int sock, const char *ifname, int *flags) {
struct ifreq if2;
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
-
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0){
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
return -1;
}
@@ -1499,53 +1465,54 @@
return 0;
}
-#endif
+#endif /* defined(__linux__) || defined(_AIX) */
/** Solaris **/
-#ifdef __solaris__
-/* Open socket for further ioct calls, try v4 socket first and
- * if it falls return v6 socket
+#if defined(__solaris__)
+
+/*
+ * Opens a socket for further ioct calls. Tries AF_INET socket first and
+ * if it falls return AF_INET6 socket.
*/
-
#ifdef AF_INET6
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock, alreadyV6 = 0;
struct lifreq if2;
- if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- if (errno == EPROTONOSUPPORT){
- if ( (sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
- return -1;
- }
+ if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ if (errno == EPROTONOSUPPORT) {
+ if ((sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV6 Socket creation failed");
+ return -1;
+ }
- alreadyV6=1;
- }
- else{ // errno is not NOSUPPORT
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
- return -1;
- }
- }
+ alreadyV6=1;
+ } else { // errno is not NOSUPPORT
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV4 Socket creation failed");
+ return -1;
+ }
+ }
+
- /**
- * Solaris requires that we have an IPv6 socket to query an
- * interface without an IPv4 address - check it here.
- * POSIX 1 require the kernel to return ENOTTY if the call is
- * inappropriate for a device e.g. the NETMASK for a device having IPv6
- * only address but not all devices follow the standard so
- * fall back on any error. It's not an ecologically friendly gesture
- * but more reliable.
- */
+ // Solaris requires that we have an IPv6 socket to query an interface
+ // without an IPv4 address - check it here. POSIX 1 require the kernel to
+ // return ENOTTY if the call is inappropriate for a device e.g. the NETMASK
+ // for a device having IPv6 only address but not all devices follow the
+ // standard so fall back on any error. It's not an ecologically friendly
+ // gesture but more reliable.
- if (! alreadyV6 ){
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.lifr_name, ifname);
+ if (!alreadyV6) {
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFNETMASK, (char *)&if2) < 0) {
- close(sock);
- if ( (sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
- return -1;
- }
+ close(sock);
+ if ((sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV6 Socket creation failed");
+ return -1;
+ }
}
}
@@ -1553,18 +1520,16 @@
}
#else
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env,AF_INET);
}
#endif
/*
- * Enumerates and returns all IPv4 interfaces
- * (linux verision)
+ * Enumerates and returns all IPv4 interfaces.
*/
-
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
- return enumIPvXInterfaces(env,sock, ifs, AF_INET);
+ return enumIPvXInterfaces(env,sock, ifs, AF_INET);
}
#ifdef AF_INET6
@@ -1574,8 +1539,8 @@
#endif
/*
- Enumerates and returns all interfaces on Solaris
- use the same code for IPv4 and IPv6
+ * Enumerates and returns all interfaces on Solaris.
+ * Uses the same code for IPv4 and IPv6.
*/
static netif *enumIPvXInterfaces(JNIEnv *env, int sock, netif *ifs, int family) {
struct lifconf ifc;
@@ -1585,19 +1550,16 @@
struct lifnum numifs;
unsigned bufsize;
- /*
- * Get the interface count
- */
+ // Get the interface count
numifs.lifn_family = family;
numifs.lifn_flags = 0;
if (ioctl(sock, SIOCGLIFNUM, (char *)&numifs) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGLIFNUM failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFNUM failed");
return ifs;
}
- /*
- * Enumerate the interface configurations
- */
+ // Enumerate the interface configurations
bufsize = numifs.lifn_count * sizeof (struct lifreq);
CHECKED_MALLOC3(buf, char *, bufsize);
@@ -1606,22 +1568,19 @@
ifc.lifc_len = bufsize;
ifc.lifc_buf = buf;
if (ioctl(sock, SIOCGLIFCONF, (char *)&ifc) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "ioctl SIOCGLIFCONF failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFCONF failed");
free(buf);
return ifs;
}
- /*
- * Iterate through each interface
- */
+ // Iterate through each interface
ifr = ifc.lifc_req;
for (n=0; n<numifs.lifn_count; n++, ifr++) {
int index = -1;
struct lifreq if2;
- /*
- * Ignore either IPv4 or IPv6 addresses
- */
+ // Ignore either IPv4 or IPv6 addresses
if (ifr->lifr_addr.ss_family != family) {
continue;
}
@@ -1633,12 +1592,12 @@
}
#endif
- /* add to the list */
- ifs = addif(env, sock,ifr->lifr_name, ifs, (struct sockaddr *)&(ifr->lifr_addr),family, (short) ifr->lifr_addrlen);
+ // add to the list
+ ifs = addif(env, sock,ifr->lifr_name, ifs,
+ (struct sockaddr *)&(ifr->lifr_addr), family,
+ (short)ifr->lifr_addrlen);
- /*
- * If an exception occurred we return immediately
- */
+ // If an exception occurred we return immediately
if ((*env)->ExceptionOccurred(env)) {
free(buf);
return ifs;
@@ -1650,13 +1609,11 @@
return ifs;
}
-static int getIndex(int sock, const char *name){
- /*
- * Try to get the interface index
- * (Not supported on Solaris 2.6 or 7)
- */
+static int getIndex(int sock, const char *name) {
+ // Try to get the interface index. (Not supported on Solaris 2.6 or 7)
struct lifreq if2;
- strcpy(if2.lifr_name, name);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, name, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFINDEX, (char *)&if2) < 0) {
return -1;
@@ -1665,27 +1622,30 @@
return if2.lifr_index;
}
-/**
+/*
* Returns the IPv4 broadcast address of a named interface, if it exists.
* Returns 0 if it doesn't have one.
*/
-static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store) {
+static struct sockaddr *getBroadcast
+ (JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store)
+{
struct sockaddr *ret = NULL;
struct lifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.lifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
- /* Let's make sure the interface does have a broadcast address */
+ // Let's make sure the interface does have a broadcast address
if (ioctl(sock, SIOCGLIFFLAGS, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFFLAGS failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFFLAGS failed");
return ret;
}
if (if2.lifr_flags & IFF_BROADCAST) {
- /* It does, let's retrieve it*/
+ // It does, let's retrieve it
if (ioctl(sock, SIOCGLIFBRDADDR, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFBRDADDR failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFBRDADDR failed");
return ret;
}
@@ -1696,7 +1656,7 @@
return ret;
}
-/**
+/*
* Returns the IPv4 subnet prefix length (aka subnet mask) for the named
* interface, if it has one, otherwise return -1.
*/
@@ -1704,12 +1664,12 @@
unsigned int mask;
short ret;
struct lifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.lifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFNETMASK, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFNETMASK failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFNETMASK failed");
return -1;
}
@@ -1725,15 +1685,16 @@
}
-
#define DEV_PREFIX "/dev/"
-/**
+/*
* Solaris specific DLPI code to get hardware address from a device.
* Unfortunately, at least up to Solaris X, you have to have special
* privileges (i.e. be root).
*/
-static int getMacFromDevice(JNIEnv *env, const char* ifname, unsigned char* retbuf) {
+static int getMacFromDevice
+ (JNIEnv *env, const char* ifname, unsigned char* retbuf)
+{
char style1dev[MAXPATHLEN];
int fd;
dl_phys_addr_req_t dlpareq;
@@ -1742,17 +1703,12 @@
char buf[128];
int flags = 0;
- /**
- * Device is in /dev
- * e.g.: /dev/bge0
- */
+ // Device is in /dev. e.g.: /dev/bge0
strcpy(style1dev, DEV_PREFIX);
strcat(style1dev, ifname);
if ((fd = open(style1dev, O_RDWR)) < 0) {
- /*
- * Can't open it. We probably are missing the privilege.
- * We'll have to try something else
- */
+ // Can't open it. We probably are missing the privilege.
+ // We'll have to try something else
return 0;
}
@@ -1763,7 +1719,8 @@
msg.len = DL_PHYS_ADDR_REQ_SIZE;
if (putmsg(fd, &msg, NULL, 0) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "putmsg failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "putmsg failed");
return -1;
}
@@ -1773,12 +1730,14 @@
msg.len = 0;
msg.maxlen = sizeof (buf);
if (getmsg(fd, &msg, NULL, &flags) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "getmsg failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "getmsg failed");
return -1;
}
if (msg.len < DL_PHYS_ADDR_ACK_SIZE || dlpaack->dl_primitive != DL_PHYS_ADDR_ACK) {
- JNU_ThrowByName(env, JNU_JAVANETPKG "SocketException", "Couldn't obtain phys addr\n");
+ JNU_ThrowByName(env, JNU_JAVANETPKG "SocketException",
+ "Couldn't obtain phys addr\n");
return -1;
}
@@ -1786,21 +1745,23 @@
return dlpaack->dl_addr_length;
}
-/**
- * Get the Hardware address (usually MAC address) for the named interface.
- * return puts the data in buf, and returns the length, in byte, of the
+/*
+ * Gets the Hardware address (usually MAC address) for the named interface.
+ * On return puts the data in buf, and returns the length, in byte, of the
* MAC address. Returns -1 if there is no hardware address on that interface.
*/
-static int getMacAddress(JNIEnv *env, int sock, const char *ifname, const struct in_addr* addr, unsigned char *buf) {
+static int getMacAddress
+ (JNIEnv *env, int sock, const char *ifname, const struct in_addr* addr,
+ unsigned char *buf)
+{
struct arpreq arpreq;
struct sockaddr_in* sin;
struct sockaddr_in ipAddr;
int len, i;
struct lifreq lif;
- /* First, try the new (S11) SIOCGLIFHWADDR ioctl(). If that fails
- * try the old way.
- */
+ // First, try the new (S11) SIOCGLIFHWADDR ioctl(). If that fails
+ // try the old way.
memset(&lif, 0, sizeof(lif));
strlcpy(lif.lifr_name, ifname, sizeof(lif.lifr_name));
@@ -1811,18 +1772,14 @@
return sp->sdl_alen;
}
- /**
- * On Solaris we have to use DLPI, but it will only work if we have
- * privileged access (i.e. root). If that fails, we try a lookup
- * in the ARP table, which requires an IPv4 address.
- */
+ // On Solaris we have to use DLPI, but it will only work if we have
+ // privileged access (i.e. root). If that fails, we try a lookup
+ // in the ARP table, which requires an IPv4 address.
if ((len = getMacFromDevice(env, ifname, buf)) == 0) {
- /*DLPI failed - trying to do arp lookup*/
+ // DLPI failed - trying to do arp lookup
if (addr == NULL) {
- /**
- * No IPv4 address for that interface, so can't do an ARP lookup.
- */
+ // No IPv4 address for that interface, so can't do an ARP lookup.
return -1;
}
@@ -1843,10 +1800,7 @@
memcpy(buf, &arpreq.arp_ha.sa_data[0], len );
}
- /*
- * All bytes to 0 means no hardware address.
- */
-
+ // All bytes to 0 means no hardware address.
for (i = 0; i < len; i++) {
if (buf[i] != 0)
return len;
@@ -1857,56 +1811,58 @@
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct lifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.lifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
if (ioctl(sock, SIOCGLIFMTU, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGLIFMTU failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGLIFMTU failed");
return -1;
}
- return if2.lifr_mtu;
+ return if2.lifr_mtu;
+}
+
+static int getFlags(int sock, const char *ifname, int *flags) {
+ struct lifreq if2;
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.lifr_name, ifname, sizeof(if2.lifr_name) - 1);
+
+ if (ioctl(sock, SIOCGLIFFLAGS, (char *)&if2) < 0) {
+ return -1;
+ }
+
+ *flags = if2.lifr_flags;
+ return 0;
}
-static int getFlags(int sock, const char *ifname, int *flags) {
- struct lifreq lifr;
- memset((caddr_t)&lifr, 0, sizeof(lifr));
- strcpy((caddr_t)&(lifr.lifr_name), ifname);
-
- if (ioctl(sock, SIOCGLIFFLAGS, (char *)&lifr) < 0) {
- return -1;
- }
-
- *flags = lifr.lifr_flags;
- return 0;
-}
-
-
-#endif
+#endif /* __solaris__ */
/** BSD **/
#ifdef _ALLBSD_SOURCE
-/* Open socket for further ioct calls, try v4 socket first and
- * if it falls return v6 socket
+
+/*
+ * Opens a socket for further ioct calls. Tries AF_INET socket first and
+ * if it falls return AF_INET6 socket.
*/
-
#ifdef AF_INET6
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
int sock;
struct ifreq if2;
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- if (errno == EPROTONOSUPPORT){
- if ( (sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ){
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV6 Socket creation failed");
+ if (errno == EPROTONOSUPPORT) {
+ if ((sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV6 Socket creation failed");
return -1;
}
}
else{ // errno is not NOSUPPORT
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException", "IPV4 Socket creation failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "IPV4 Socket creation failed");
return -1;
}
}
@@ -1915,39 +1871,33 @@
}
#else
-static int openSocketWithFallback(JNIEnv *env, const char *ifname){
+static int openSocketWithFallback(JNIEnv *env, const char *ifname) {
return openSocket(env,AF_INET);
}
#endif
/*
- * Enumerates and returns all IPv4 interfaces
+ * Enumerates and returns all IPv4 interfaces.
*/
static netif *enumIPv4Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifaddrs *ifa, *origifa;
if (getifaddrs(&origifa) != 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "getifaddrs() function failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "getifaddrs() function failed");
return ifs;
}
for (ifa = origifa; ifa != NULL; ifa = ifa->ifa_next) {
- /*
- * Skip non-AF_INET entries.
- */
+ // Skip non-AF_INET entries.
if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_INET)
continue;
- /*
- * Add to the list.
- */
+ // Add to the list.
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr, AF_INET, 0);
- /*
- * If an exception occurred then free the list.
- */
+ // If an exception occurred then free the list.
if ((*env)->ExceptionOccurred(env)) {
freeifaddrs(origifa);
freeif(ifs);
@@ -1955,33 +1905,25 @@
}
}
- /*
- * Free socket and buffer
- */
+ // Free socket and buffer
freeifaddrs(origifa);
return ifs;
}
-
-/*
- * Enumerates and returns all IPv6 interfaces on Linux
- */
-
#ifdef AF_INET6
/*
* Determines the prefix on BSD for IPv6 interfaces.
*/
-static
-int prefix(void *val, int size) {
+static int prefix(void *val, int size) {
u_char *name = (u_char *)val;
- int byte, bit, plen = 0;
+ int byte, bit, prefix = 0;
- for (byte = 0; byte < size; byte++, plen += 8)
+ for (byte = 0; byte < size; byte++, prefix += 8)
if (name[byte] != 0xff)
break;
if (byte == size)
- return (plen);
- for (bit = 7; bit != 0; bit--, plen++)
+ return prefix;
+ for (bit = 7; bit != 0; bit--, prefix++)
if (!(name[byte] & (1 << bit)))
break;
for (; bit != 0; bit--)
@@ -1991,11 +1933,11 @@
for (; byte < size; byte++)
if (name[byte])
return (0);
- return (plen);
+ return prefix;
}
/*
- * Enumerates and returns all IPv6 interfaces on BSD
+ * Enumerates and returns all IPv6 interfaces on BSD.
*/
static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
struct ifaddrs *ifa, *origifa;
@@ -2003,37 +1945,36 @@
struct in6_ifreq ifr6;
if (getifaddrs(&origifa) != 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "getifaddrs() function failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "getifaddrs() function failed");
return ifs;
}
for (ifa = origifa; ifa != NULL; ifa = ifa->ifa_next) {
- /*
- * Skip non-AF_INET6 entries.
- */
+ // Skip non-AF_INET6 entries.
if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_INET6)
continue;
memset(&ifr6, 0, sizeof(ifr6));
strlcpy(ifr6.ifr_name, ifa->ifa_name, sizeof(ifr6.ifr_name));
- memcpy(&ifr6.ifr_addr, ifa->ifa_addr, MIN(sizeof(ifr6.ifr_addr), ifa->ifa_addr->sa_len));
+ memcpy(&ifr6.ifr_addr, ifa->ifa_addr,
+ MIN(sizeof(ifr6.ifr_addr), ifa->ifa_addr->sa_len));
if (ioctl(sock, SIOCGIFNETMASK_IN6, (caddr_t)&ifr6) < 0) {
- NET_ThrowByNameWithLastError(env , JNU_JAVANETPKG "SocketException",
- "ioctl SIOCGIFNETMASK_IN6 failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFNETMASK_IN6 failed");
freeifaddrs(origifa);
freeif(ifs);
return NULL;
}
- /* Add to the list. */
+ // Add to the list.
sin6 = (struct sockaddr_in6 *)&ifr6.ifr_addr;
ifs = addif(env, sock, ifa->ifa_name, ifs, ifa->ifa_addr, AF_INET6,
- prefix(&sin6->sin6_addr, sizeof(struct in6_addr)));
+ (short)prefix(&sin6->sin6_addr, sizeof(struct in6_addr)));
- /* If an exception occurred then free the list. */
+ // If an exception occurred then free the list.
if ((*env)->ExceptionOccurred(env)) {
freeifaddrs(origifa);
freeif(ifs);
@@ -2041,22 +1982,19 @@
}
}
- /*
- * Free socket and ifaddrs buffer
- */
+ // Free socket and ifaddrs buffer
freeifaddrs(origifa);
return ifs;
}
#endif
-static int getIndex(int sock, const char *name){
+static int getIndex(int sock, const char *name) {
#ifdef __FreeBSD__
- /*
- * Try to get the interface index
- * (Not supported on Solaris 2.6 or 7)
- */
+ // Try to get the interface index
+ // (Not supported on Solaris 2.6 or 7)
struct ifreq if2;
- strcpy(if2.ifr_name, name);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, name, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFINDEX, (char *)&if2) < 0) {
return -1;
@@ -2064,46 +2002,47 @@
return if2.ifr_index;
#else
- /*
- * Try to get the interface index using BSD specific if_nametoindex
- */
+ // Try to get the interface index using BSD specific if_nametoindex
int index = if_nametoindex(name);
return (index == 0) ? -1 : index;
#endif
}
-/**
+/*
* Returns the IPv4 broadcast address of a named interface, if it exists.
* Returns 0 if it doesn't have one.
*/
-static struct sockaddr *getBroadcast(JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store) {
- struct sockaddr *ret = NULL;
- struct ifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
-
- /* Let's make sure the interface does have a broadcast address */
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFFLAGS failed");
- return ret;
- }
+static struct sockaddr *getBroadcast
+ (JNIEnv *env, int sock, const char *ifname, struct sockaddr *brdcast_store)
+{
+ struct sockaddr *ret = NULL;
+ struct ifreq if2;
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
- if (if2.ifr_flags & IFF_BROADCAST) {
- /* It does, let's retrieve it*/
- if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFBRDADDR failed");
- return ret;
- }
+ // Make sure the interface does have a broadcast address
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFFLAGS failed");
+ return ret;
+ }
- ret = brdcast_store;
- memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
- }
+ if (if2.ifr_flags & IFF_BROADCAST) {
+ // It does, let's retrieve it
+ if (ioctl(sock, SIOCGIFBRDADDR, (char *)&if2) < 0) {
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFBRDADDR failed");
+ return ret;
+ }
- return ret;
+ ret = brdcast_store;
+ memcpy(ret, &if2.ifr_broadaddr, sizeof(struct sockaddr));
+ }
+
+ return ret;
}
-/**
+/*
* Returns the IPv4 subnet prefix length (aka subnet mask) for the named
* interface, if it has one, otherwise return -1.
*/
@@ -2111,12 +2050,12 @@
unsigned int mask;
short ret;
struct ifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFNETMASK, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFNETMASK failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFNETMASK failed");
return -1;
}
@@ -2130,25 +2069,28 @@
return ret;
}
-/**
- * Get the Hardware address (usually MAC address) for the named interface.
+/*
+ * Gets the Hardware address (usually MAC address) for the named interface.
* return puts the data in buf, and returns the length, in byte, of the
* MAC address. Returns -1 if there is no hardware address on that interface.
*/
-static int getMacAddress(JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr, unsigned char *buf) {
+static int getMacAddress
+ (JNIEnv *env, int sock, const char* ifname, const struct in_addr* addr,
+ unsigned char *buf)
+{
struct ifaddrs *ifa0, *ifa;
struct sockaddr *saddr;
int i;
- /* Grab the interface list */
+ // Grab the interface list
if (!getifaddrs(&ifa0)) {
- /* Cycle through the interfaces */
+ // Cycle through the interfaces
for (i = 0, ifa = ifa0; ifa != NULL; ifa = ifa->ifa_next, i++) {
saddr = ifa->ifa_addr;
- /* Link layer contains the MAC address */
+ // Link layer contains the MAC address
if (saddr->sa_family == AF_LINK && !strcmp(ifname, ifa->ifa_name)) {
struct sockaddr_dl *sadl = (struct sockaddr_dl *) saddr;
- /* Check the address is the correct length */
+ // Check the address is the correct length
if (sadl->sdl_alen == ETHER_ADDR_LEN) {
memcpy(buf, (sadl->sdl_data + sadl->sdl_nlen), ETHER_ADDR_LEN);
freeifaddrs(ifa0);
@@ -2164,12 +2106,12 @@
static int getMTU(JNIEnv *env, int sock, const char *ifname) {
struct ifreq if2;
-
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
if (ioctl(sock, SIOCGIFMTU, (char *)&if2) < 0) {
- NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException", "IOCTL SIOCGIFMTU failed");
+ NET_ThrowByNameWithLastError(env, JNU_JAVANETPKG "SocketException",
+ "ioctl SIOCGIFMTU failed");
return -1;
}
@@ -2177,22 +2119,20 @@
}
static int getFlags(int sock, const char *ifname, int *flags) {
- struct ifreq if2;
- int ret = -1;
+ struct ifreq if2;
+ int ret = -1;
+ memset((char *)&if2, 0, sizeof(if2));
+ strncpy(if2.ifr_name, ifname, sizeof(if2.ifr_name) - 1);
- memset((char *) &if2, 0, sizeof(if2));
- strcpy(if2.ifr_name, ifname);
-
- if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0){
- return -1;
- }
+ if (ioctl(sock, SIOCGIFFLAGS, (char *)&if2) < 0) {
+ return -1;
+ }
- if (sizeof(if2.ifr_flags) == sizeof(short)) {
- *flags = (if2.ifr_flags & 0xffff);
- } else {
- *flags = if2.ifr_flags;
- }
- return 0;
+ if (sizeof(if2.ifr_flags) == sizeof(short)) {
+ *flags = (if2.ifr_flags & 0xffff);
+ } else {
+ *flags = if2.ifr_flags;
+ }
+ return 0;
}
-
-#endif
+#endif /* __ALLBSD_SOURCE__ */