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

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!

score 118 · Accepted Answer · answered Feb 26 '13 at 20:48

118

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

answered Feb 26 '13 at 20:48

9

Is it bad style to omit `!= NULL` ? – user1011471 Jan 26 '17 at 20:45
12

don't forget to `#include ` – weefwefwqg3 Nov 05 '17 at 16:20

score 22 · Answer 2 · answered Feb 26 '13 at 20:48

22

strstr(request, "favicon") != NULL

answered Feb 26 '13 at 20:48

Fred Foo

355,277
75
744
836

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

2 Answers2

Linked