Julien Chaffraix clarified CURLOPT_HEADERFUNCTION and made

to be saved. The size of the data pointed to by \fIptr\fP is \fIsize\fP

multiplied with \fInmemb\fP, it will not be zero terminated. Return the number

of bytes actually taken care of. If that amount differs from the amount passed

to your function, it'll signal an error to the library and it will abort the

to your function, it'll signal an error to the library. This will abort the

transfer and return \fICURLE_WRITE_ERROR\fP.

From 7.18.0, the function can return CURL_WRITEFUNC_PAUSE which then will

multiplied with \fInmemb\fP. Do not assume that the header line is zero

terminated! The pointer named \fIstream\fP is the one you set with the

\fICURLOPT_WRITEHEADER\fP option. The callback function must return the number

of bytes actually taken care of, or return -1 to signal error to the library

(it will cause it to abort the transfer with a \fICURLE_WRITE_ERROR\fP return

code).

of bytes actually taken care of. If that amount differs from the amount passed

to your function, it'll signal an error to the library. This will abort the

transfer and return \fICURL_WRITE_ERROR\fP.

If this option is not set, or if it is set to NULL, but

\fICURLOPT_HEADERDATA\fP (\fICURLOPT_WRITEHEADER\fP) is set to anything but