mirror of
https://codeberg.org/kiss-community/repo
synced 2024-12-24 16:30:04 -07:00
52 lines
1.3 KiB
Groff
52 lines
1.3 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_IOCTLDATA.md
|
|
.TH CURLOPT_IOCTLDATA 3 "2024-06-01" libcurl
|
|
.SH NAME
|
|
CURLOPT_IOCTLDATA \- pointer passed to I/O callback
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IOCTLDATA, void *pointer);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
Pass the \fIpointer\fP that is untouched by libcurl and passed as the 3rd
|
|
argument in the ioctl callback set with \fICURLOPT_IOCTLFUNCTION(3)\fP.
|
|
.SH DEFAULT
|
|
By default, the value of this parameter is NULL.
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
#include <unistd.h> /* for lseek */
|
|
|
|
struct data {
|
|
int fd; /* our file descriptor */
|
|
};
|
|
|
|
static curlioerr ioctl_callback(CURL *handle, int cmd, void *clientp)
|
|
{
|
|
struct data *io = (struct data *)clientp;
|
|
if(cmd == CURLIOCMD_RESTARTREAD) {
|
|
lseek(io->fd, 0, SEEK_SET);
|
|
return CURLIOE_OK;
|
|
}
|
|
return CURLIOE_UNKNOWNCMD;
|
|
}
|
|
int main(void)
|
|
{
|
|
struct data ioctl_data;
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_IOCTLFUNCTION, ioctl_callback);
|
|
curl_easy_setopt(curl, CURLOPT_IOCTLDATA, &ioctl_data);
|
|
}
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.12.3. Deprecated since 7.18.0.
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH SEE ALSO
|
|
.BR CURLOPT_IOCTLFUNCTION (3),
|
|
.BR CURLOPT_SEEKFUNCTION (3)
|