sscanf issues

Hello,
I would like to check a string, using sscanf, for the format: "http://host:port/path"

I can't seem to figure it out. What format should I use?
I currently have the following, but it returns 1 instead of 3

Code:

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sscanf(someString,"http://%s:%d/%s", &host, port, &path);

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Any idea?
Thanks.

Edit: format is

Code:

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http://host:port/path

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