mirror of
https://codeberg.org/kiss-community/repo
synced 2024-11-19 21:20:07 -07:00
90 lines
2.5 KiB
Groff
90 lines
2.5 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_HSTSWRITEFUNCTION.md
|
|
.TH CURLOPT_HSTSWRITEFUNCTION 3 libcurl
|
|
.SH NAME
|
|
CURLOPT_HSTSWRITEFUNCTION \- write callback for HSTS hosts
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
struct curl_hstsentry {
|
|
char *name;
|
|
size_t namelen;
|
|
unsigned int includeSubDomains:1;
|
|
char expire[18]; /* YYYYMMDD HH:MM:SS [null-terminated] */
|
|
};
|
|
|
|
struct curl_index {
|
|
size_t index; /* the provided entry's "index" or count */
|
|
size_t total; /* total number of entries to save */
|
|
};
|
|
|
|
CURLSTScode hstswrite(CURL *easy, struct curl_hstsentry *sts,
|
|
struct curl_index *count, void *clientp);
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HSTSWRITEFUNCTION, hstswrite);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
Pass a pointer to your callback function, as the prototype shows above.
|
|
|
|
This callback function gets called by libcurl repeatedly to allow the
|
|
application to store the in\-memory HSTS cache when libcurl is about to discard
|
|
it.
|
|
|
|
Set the \fIclientp\fP argument with the \fICURLOPT_HSTSWRITEDATA(3)\fP option
|
|
or it is NULL.
|
|
When the callback is invoked, the \fIsts\fP pointer points to a populated
|
|
struct: Read the hostname to \(aqname\(aq (it is \fInamelen\fP bytes long and null
|
|
terminated. The \fIincludeSubDomains\fP field is non\-zero if the entry matches
|
|
subdomains. The \fIexpire\fP string is a date stamp null\-terminated string
|
|
using the syntax YYYYMMDD HH:MM:SS.
|
|
|
|
The callback should return \fICURLSTS_OK\fP if it succeeded and is prepared to
|
|
be called again (for another host) or \fICURLSTS_DONE\fP if there is nothing
|
|
more to do. It can also return \fICURLSTS_FAIL\fP to signal error.
|
|
|
|
This option does not enable HSTS, you need to use \fICURLOPT_HSTS_CTRL(3)\fP to
|
|
do that.
|
|
.SH DEFAULT
|
|
NULL \- no callback.
|
|
.SH PROTOCOLS
|
|
HTTP
|
|
.SH EXAMPLE
|
|
.nf
|
|
struct priv {
|
|
void *custom;
|
|
};
|
|
|
|
static CURLSTScode hswr_cb(CURL *easy, struct curl_hstsentry *sts,
|
|
struct curl_index *count, void *clientp)
|
|
{
|
|
/* save the passed in HSTS data somewhere */
|
|
return CURLSTS_OK;
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
struct priv my_stuff;
|
|
CURLcode res;
|
|
|
|
/* set HSTS read callback */
|
|
curl_easy_setopt(curl, CURLOPT_HSTSWRITEFUNCTION, hswr_cb);
|
|
|
|
/* pass in suitable argument to the callback */
|
|
curl_easy_setopt(curl, CURLOPT_HSTSWRITEDATA, &my_stuff);
|
|
|
|
res = curl_easy_perform(curl);
|
|
}
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.74.0
|
|
.SH RETURN VALUE
|
|
This returns CURLE_OK.
|
|
.SH SEE ALSO
|
|
.BR CURLOPT_HSTS (3),
|
|
.BR CURLOPT_HSTSWRITEDATA (3),
|
|
.BR CURLOPT_HSTSWRITEFUNCTION (3),
|
|
.BR CURLOPT_HSTS_CTRL (3)
|