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Add VERSION command support. #28

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Add VERSION command support. #28

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23 changes: 23 additions & 0 deletions src/main/java/fi/solita/clamav/ClamAVClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ public class ClamAVClient {
private static final int CHUNK_SIZE = 2048;
private static final int DEFAULT_TIMEOUT = 500;
private static final int PONG_REPLY_LEN = 4;
private static final int VERSION_REPLY_LEN = 256;

/**
* @param hostName The hostname of the server running clamav-daemon
Expand Down Expand Up @@ -66,6 +67,28 @@ public boolean ping() throws IOException {
}
}

/**
* Run VERSION command to clamd.
*
* @return Version string that the server responded with.
*/
public boolean version() throws IOException {
try (Socket s = new Socket(hostName,port); OutputStream outs = s.getOutputStream()) {
s.setSoTimeout(timeout);
outs.write(asBytes("zVERSION\0"));
outs.flush();
byte[] b = new byte[VERSION_REPLY_LEN];
InputStream inputStream = s.getInputStream();
int copyIndex = 0;
int readResult;
do {
readResult = inputStream.read(b, copyIndex, Math.max(b.length - copyIndex, 0));
copyIndex += readResult;
} while (readResult > 0);
return new String(b, StandardCharsets.UTF_8);
}
}

/**
* Streams the given data to the server in chunks. The whole data is not kept in memory.
* This method is preferred if you don't want to keep the data in memory, for instance by scanning a file on disk.
Expand Down