CURLOPT_SEEKDATA(3) | Library Functions Manual | CURLOPT_SEEKDATA(3) |
NAME
CURLOPT_SEEKDATA - pointer passed to the seek callback
SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SEEKDATA, void *pointer);
DESCRIPTION
Data pointer to pass to the seek callback function. If you use the CURLOPT_SEEKFUNCTION(3) option, this is the pointer you get as input.
DEFAULT
If you do not set this, NULL is passed to the callback.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
#include <unistd.h> /* for lseek() */ struct data { int our_fd; }; static int seek_cb(void *clientp, curl_off_t offset, int origin) { struct data *d = (struct data *)clientp; lseek(d->our_fd, offset, origin); return CURL_SEEKFUNC_OK; } int main(void) { struct data seek_data; CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_SEEKFUNCTION, seek_cb); curl_easy_setopt(curl, CURLOPT_SEEKDATA, &seek_data); } }
AVAILABILITY
Added in curl 7.18.0
RETURN VALUE
SEE ALSO
CURLOPT_DEBUGFUNCTION(3), CURLOPT_IOCTLFUNCTION(3), CURLOPT_SEEKFUNCTION(3), CURLOPT_STDERR(3)
2024-09-18 | libcurl |