split url into different categories in c programming [duplicate]

I have char *initialurl = "http://example.demo.com:80/demo/path"

expecting output:

char *protocol = "https://"
char *url = "example.demo.com"
char *port = "80"
char *path =  "/demo/path"

I tried

char *initialurl = "http://example.demo.com:80/demo/path"
char *port = strstr(initialurl, ":");
if(port) {
     port = strtok(port, "/") + 1;
     printf("PORT: %s\n", port);
}

Similarly, I am trying to use same char *initialurl to split. By then, memory value of variable changing to "http://example.demo.com".

How can i get path?? Do I need to copy char *initialurl to new variable?

Please suggest. Thank you