拒绝执行权限

Question

Creating a producer/consumer system. The producer is meant to call the consumer but i am getting the error

execl failed for producer: Permission denied

Here is the call:

if (execl("/home/aaron/Documents/Programming/c/producerAsignment",   
          "runConsumer", NULL) == -1) {

     perror("execl failed for producer");
     exit(3);
}

I have tried putting the executable file into the same directory as the program calling it but that made no difference.

ls -l /home/aaron/Documents/Programming/c/producerAsignment 
...
-rwxrwxr-x 1 aaron aaron 8760 Jan 10 22:28 runConsumer 
...

Answer 1

Ok, it turns out that the file you are trying to execute is actually a directory (see letter "d" at the beginning of the ls command output). You cannot execute directories. Only files with the execute permission.