How to extract a subpart of char* [duplicate]

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Possible Duplicate:

Modify a char* string in C

I have:

char* htmlstring = "htmldata"

How do I extract:

char* htmlstring1 = "htmldata 开发者_如何转开发before </body>tag"

char* htmlstring2 ="htmldata after and including</body> tag"

Can I use strstr? Whats the best approach?

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strncpy(destination_string, source + start, count)

It's not really safe, but works. You should wrap it around.