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Fixed server crash issue #3

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Fixed server crash issue #3

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15 changes: 15 additions & 0 deletions AF_UNIX/server.c
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ main(int argc, char *argv[])
int result;
int data;
char buffer[BUFFER_SIZE];
int clientExited = 0; // for avoiding the server crash in case client closes connection

/*In case the program exited inadvertently on the last run,
*remove the socket.
Expand Down Expand Up @@ -112,12 +113,26 @@ main(int argc, char *argv[])
perror("read");
exit(EXIT_FAILURE);
}

else if (ret == 0) // check if client exited
{
printf("Client exited\n");
clientExited = 1;
break;
}

/* Add received summand. */
memcpy(&data, buffer, sizeof(int));
if(data == 0) break;
result += data;
}

// skip writing in case client exited
if (clientExited)
{
clientExited = 0;
continue;
}

/* Send result. */
memset(buffer, 0, BUFFER_SIZE);
Expand Down