Thread: sscanf and parsing strings

Hi all,

This is my first post here so I don't know if it is a repost but I would appreciate any replies even if it is. I am writing a small command interpreter and after getting a line of input from the user I have to parse it to figure out which command was given. What I have now is as follows:

Code:

//Inside loop getting info from the user
char *infoa;
char *infob;

if (sscanf(line, "command option %s %s", infoa, infob) == 2){
   //Do the command
}

There are then other sscanf if statements to check the other commands. The first issue is this is giving me a bus error when i type "command option a b" (a and b can be anything). If I change the %s to %d and the type of infoa and infob to ints, it works so why is it not working with strings? Secondly, I believe there must be a better way to parse strings but I have no idea what it is. If anyone can point me in a better direction, I would definately appreciate it.

Thanks all

Your pointers don't point anywhere.

Make them arrays or allocate some memory and make them point there.

thanks for the responses. they were very helpful