Simple way to check if a string contains another string in C? [duplicate]

Question

I'm pretty new to the language. Let's say I have a string from an HTTP request, such as

char * request = "GET /favicon.ico HTTP/1.1";

And I specifically want to know if favicon is in that request, perhaps with a boolean value. What is a relatively simple way to go about this? I know how to do it in Java, but I'm more lost with C.

Thanks!

user529758 · Accepted Answer · 2013-02-26 20:48:27Z

132

if (strstr(request, "favicon") != NULL) {
    // contains
}

answered Feb 26, 2013 at 20:48

user529758

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3 Comments

user1011471 Over a year ago

Is it bad style to omit != NULL ?

weefwefwqg3 Over a year ago

don't forget to #include <string.h>

Clonkex Over a year ago

@user1011471 Personally I always prefer to be explicit. That way there's never any confusion.

Fred Foo · Accepted Answer · 2013-02-26 20:48:06Z

23

strstr(request, "favicon") != NULL

answered Feb 26, 2013 at 20:48

Fred Foo

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