Analyze the following code fragment for receiving data:

char buffer[1024];
int received = recv(client_fd, buffer, sizeof(buffer), 0);
if (received 0) {
printf("Received message: %s
", buffer);
}

What potential issue exists in this code?

Question

Analyze the following code fragment for receiving data:

char buffer[1024];
int received = recv(client_fd, buffer, sizeof(buffer), 0);
if (received > 0) {
printf("Received message: %s
", buffer);
}

What potential issue exists in this code?

Answer

a.  The recv() function requires a fifth parameter specifying the timeout duration

Answer

b.  The buffer might not be null-terminated after recv(), causing printf() to read beyond the message

Answer

c.  The return value from recv() should be checked for -1, not compared with > 0

Answer

d.  The buffer size should be 1023 instead of 1024 to allow room for a null terminator

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