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Added CURLOPT_HEADERFUNCTION description

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Daniel Stenberg 2001-04-10 07:38:59 +00:00
parent 90bb87b40e
commit d9f989c8c8
1 changed files with 29 additions and 4 deletions
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33
docs/curl_easy_setopt.3
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@ -2,7 +2,7 @@
.\" nroff -man [file]
.\" Written by daniel@haxx.se
.\"
.TH curl_easy_setopt 3 "7 April 2001" "libcurl 7.7" "libcurl Manual"
.TH curl_easy_setopt 3 "10 April 2001" "libcurl 7.7.2" "libcurl Manual"
.SH NAME
curl_easy_setopt - Set curl easy-session options
.SH SYNOPSIS
@ -54,7 +54,7 @@ if you set the
option.
.TP
.B CURLOPT_WRITEFUNCTION
Function pointer that should use match the following prototype:
Function pointer that should match the following prototype:
.BI "size_t function( void *ptr, size_t size, size_t nmemb, FILE *stream);"
This function gets called by libcurl as soon as there is received data that
needs to be written down. The size of the data pointed to by
@ -78,7 +78,7 @@ if you set the
option.
.TP
.B CURLOPT_READFUNCTION
Function pointer that should use match the following prototype:
Function pointer that should match the following prototype:
.BI "size_t function( void *ptr, size_t size, size_t nmemb, FILE *stream);"
This function gets called by libcurl as soon as it needs to read data in order
to send it to the peer. The data area pointed at by the pointer
@ -319,7 +319,32 @@ struct curl_slist structs properly filled in as described for
.B CURLOPT_WRITEHEADER
Pass a FILE * to be used to write the header part of the received data to. The
headers are guaranteed to be written one-by-one to this file handle and only
complete lines are written. Parsing headers should be easy enough using this.
complete lines are written. Parsing headers should be easy enough using
this. See also the
.I CURLOPT_HEADERFUNCTION
option.
.TP
.B CURLOPT_HEADERFUNCTION
Function pointer that should match the following prototype:
.BI "size_t function( void *ptr, size_t size, size_t nmemb, FILE *stream);"
This function gets called by libcurl as soon as there is received header data
that needs to be written down. The function will be called once for each
header with a complete header line in each invoke. The size of the data
pointed to by
.I ptr
is
.I size
multiplied with
.I nmemb.
The pointer named
.I stream
will be the one you passed to libcurl with the
.I CURLOPT_WRITEHEADER
option.
Return the number of bytes actually written or return -1 to signal error to
the library (it will cause it to abort the transfer with a
.I CURLE_WRITE_ERROR
return code). (Added in libcurl 7.7.2)
.TP
.B CURLOPT_COOKIEFILE
Pass a pointer to a zero terminated string as parameter. It should contain the