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Diffstat (limited to 'docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.3')
-rw-r--r--docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.349
1 files changed, 19 insertions, 30 deletions
diff --git a/docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.3 b/docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.3
index 8ca132362..54974078c 100644
--- a/docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.3
+++ b/docs/libcurl/opts/CURLOPT_TRAILERFUNCTION.3
@@ -21,17 +21,14 @@
.\" **************************************************************************
.\"
.TH CURLOPT_TRAILERFUNCTION 3 "14 Aug 2018" "libcurl 7.64.0" "curl_easy_setopt options"
-
.SH NAME:
CURLOPT_TRAILERFUNCTION \- Set callback for sending trailing headers
-
.SH SYNOPSIS:
#include <curl.h>
int curl_trailer_callback(struct curl_slist ** list, void *userdata);
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRAILERFUNCTION, curl_trailer_callback *func);
-
.SH DESCRIPTION:
Pass a pointer to a callback function.
@@ -59,54 +56,46 @@ trailers or to abort the request.
If you set this option to NULL, then the transfer proceeds as usual
without any interruptions.
-
.SH DEFAULT:
NULL
-
.SH PROTOCOLS:
HTTP
-
.SH EXAMPLE:
#include <curl/curl.h>
static int trailer_cb(struct curl_slist **tr, void *data)
{
- /* libcurl will free the list */
- *tr = curl_slist_append(*tr, "My-super-awesome-trailer: trailer-stuff");
- (void)data;
- return CURL_TRAILERFUNC_OK;
+ /* libcurl will free the list */
+ tr = curl_slist_append(*tr, "My-super-awesome-trailer: trailer-stuff");
+ return CURL_TRAILERFUNC_OK;
}
CURL *curl = curl_easy_init();
if(curl) {
+ /* Set the URL of the request */
+ curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+ /* Now set it as a put */
+ curl_easy_setopt(curl, CURLOPT_PUT, 1L);
- /* Set the URL of the request */
- curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
- /* Now set it as a put */
- curl_easy_setopt(curl, CURLOPT_PUT, 1L);
-
- /* Assuming we have a function that will return the data to be pushed
- Let that function be read_cb */
- curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_cb);
+ /* Assuming we have a function that will return the data to be pushed
+ Let that function be read_cb */
+ curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_cb);
- struct curl_slist *headers = NULL;
- headers = curl_slist_append(headers, "Trailer: My-super-awsome-trailer");
- res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
+ struct curl_slist *headers = NULL;
+ headers = curl_slist_append(headers, "Trailer: My-super-awsome-trailer");
+ res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
- /* Set the trailers filling callback */
- curl_easy_setopt(curl, CURLOPT_TRAILERFUNCTION, (curl_trailer_callback)trailer_cb);
+ /* Set the trailers filling callback */
+ curl_easy_setopt(curl, CURLOPT_TRAILERFUNCTION, trailer_cb);
- /* Perform the request, res will get the return code */
- res = curl_easy_perform(curl);
+ /* Perform the request, res will get the return code */
+ res = curl_easy_perform(curl);
- curl_easy_cleanup(curl);
+ curl_easy_cleanup(curl);
- curl_slist_free_all(headers);
+ curl_slist_free_all(headers);
}
-
-
.SH AVAILABILITY:
This option was added in curl 7.64.0 and is present if HTTP support is enabled
-
.SH "SEE ALSO"
.BR CURLOPT_TRAILERDATA "(3), "