Copy results of strtok to 2 strings in C

问题

Ok, so I have the code

char *token;
char *delimiter = " ";

token = strtok(command, delimiter);

strcpy(command, token);

token = strtok(NULL, delimiter);
strcpy(arguments, token);

and it gives me EXC_BAD_ACCESS when i run it, and yes, command and arguments are already defined.

回答1:

Why are you copying the token into command when you're parsing command? It's a very unsafe thing to do.

You can do:

char *command_tok, *args_tok;

command_tok = strtok(command, delimiter);
args_tok = strtok(NULL, delimiter);

Now command_tok and args_tok point to the command and arguments part of the initial string, assuming it parses correctly. Note that they point to parts of the command buffer and don't have their own allocated memory. You can safely copy from them into other buffers.

来源：https://stackoverflow.com/questions/2523624/copy-results-of-strtok-to-2-strings-in-c