How to split HTTP header in C?

Question

I receive HTTP request at socket.

I want to split HTTP request at header and content.

So, I tried this source.

//p is char* type, response too
p = strtok(response, "\r\n\r\n");
while(NULL != p){
    printf("%s\n", p);
    p  = strtok(NULL, "\r\n\r\n");
}

But strtok() replaced "\r\n" by NULL too.

I want replace only "\r\n\r\n".

How should I?

Just do it manually not a big deal.

Coldsteel48
– Coldsteel48

2014-03-29 14:34:31 +00:00
Commented Mar 29, 2014 at 14:34 — Coldsteel48
– Coldsteel48, Commented Mar 29, 2014 at 14:34

pmg · Accepted Answer · 2014-03-29 14:51:38Z

3

Try strstr

//p1 is char* type, response and p2 too
p1 = response;
p2 = strstr(response, "\r\n\r\n");
while(NULL != p2){
    printf("%.*s\n", p2 - p1, p1);
    p1 = p2;
    p2 = strstr(p2 + 1, "\r\n\r\n");
}

answered Mar 29, 2014 at 14:51

pmg

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3 Comments

Jongware Over a year ago

.. and on that same site, you can read why you are using strtok wrong

Prokuma Over a year ago

I want to return Header or Content too. How can return Header or content?

pmg Over a year ago

to return something to the caller, copy it to the destination address (make sure it has enough space); or allocate memory and return that (make sure to free it when it's no longer needed).

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