Programming

hello

I have a C program and I want to read data from a socket ,and especially I want a client to send a .jpg to the server.The problem I face is that no matter what the size of the photo is,my read command seems to read an amount of data and then does nothing.

Code:

while(1){
   if(read(sockdes,&c,sizeof c)<=0){
       perror("read");
       break;
   }
}

The strange thing is that perror doesn't print anything,which means that read is successful,also I checked if I closed the socket in the server code,but I do not.

what is 'c'?

I am curious how you are sending the .jpg file? Are you first encoding it to base64 or any other encoding schemes and then sending the encoded data to the server and subsequently decode it?

...as in what is your variable 'c', there?

Your code says to read from the socket until an error is received. No data is not an error, so the read() call just blocks waiting for more data.