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Fixed possible undefined behaviour when UDP RX buffer fills

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This commit is contained in:
Joseph Henry
2016-08-31 15:54:56 -07:00
parent 33d3e72261
commit bf9bc511b0
5 changed files with 20 additions and 17 deletions
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2
src/SDK_Sockets.c
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@@ -260,7 +260,7 @@ int (*realclose)(CLOSE_SIG);
jbyte *body = (*env)->GetByteArrayElements(env, buf, 0);
unsigned char buffer[ZT_MAX_MTU];
int payload_offset = sizeof(int) + sizeof(struct sockaddr_storage);
int rxbytes = zts_recvfrom(fd, &buffer, len, flags, &addr, sizeof(struct sockaddr));
int rxbytes = zts_recvfrom(fd, &buffer, len, flags, &addr, sizeof(struct sockaddr_storage));
if(rxbytes > 0)
memcpy(body, (jbyte*)buffer + payload_offset, rxbytes);
(*env)->ReleaseByteArrayElements(env, buf, body, 0);