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Add #ifdef statements so the compilation of the native code not fails on MacOS (#7895)

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Motivation:

b818852cdb added support for IP_RECVORIGDSTADDR but did not include any #ifdef statements to ensure its usable at all (which is not the case on MacOS).

Modifications:

Add #ifdef statements to check for IP_RECVORIGDSTADDR.

Result:

Compilation works again on MacOS.
This commit is contained in:
Norman Maurer 2018-04-28 22:04:35 +02:00 committed by GitHub
parent dfeb4b15b5
commit b5fde3e0cd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 6 deletions
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21
transport-native-unix-common/src/main/c/netty_unix_socket.c
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@ -289,17 +289,19 @@ static jint _sendTo(JNIEnv* env, jint fd, void* buffer, jint pos, jint limit, jb
static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limit) {
struct sockaddr_storage addr;
struct sockaddr_storage daddr;
socklen_t addrlen = sizeof(addr);
char cntrlbuf[64];
struct iovec iov;
struct msghdr msg;
ssize_t res;
int err;
struct cmsghdr* cmsg;
jobject local = NULL;
int readLocalAddr;
#ifdef IP_RECVORIGDSTADDR
struct sockaddr_storage daddr;
struct iovec iov;
struct cmsghdr* cmsg;
struct msghdr msg;
char cntrlbuf[64];
int readLocalAddr;
if (netty_unix_socket_getOption(env, fd, IPPROTO_IP, IP_RECVORIGDSTADDR,
&readLocalAddr, sizeof(readLocalAddr)) < 0) {
readLocalAddr = 0;
@ -315,13 +317,18 @@ static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limi
msg.msg_control = cntrlbuf;
msg.msg_controllen = sizeof(cntrlbuf);
}
#endif
do {
#ifdef IP_RECVORIGDSTADDR
if (readLocalAddr) {
res = recvmsg(fd, &msg, 0);
} else {
#endif
res = recvfrom(fd, buffer + pos, (size_t) (limit - pos), 0, (struct sockaddr*) &addr, &addrlen);
#ifdef IP_RECVORIGDSTADDR
}
#endif
// Keep on reading if we was interrupted
} while (res == -1 && ((err = errno) == EINTR));
@ -342,6 +349,7 @@ static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limi
return NULL;
}
#ifdef IP_RECVORIGDSTADDR
if (readLocalAddr) {
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVORIGDSTADDR) {
@ -351,6 +359,7 @@ static jobject _recvFrom(JNIEnv* env, jint fd, void* buffer, jint pos, jint limi
}
}
}
#endif
return createDatagramSocketAddress(env, &addr, res, local);
}