mirror of
https://codeberg.org/kiss-community/repo
synced 2024-11-20 05:30:11 -07:00
77 lines
2.3 KiB
Groff
77 lines
2.3 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_UPLOAD.md
|
|
.TH CURLOPT_UPLOAD 3 libcurl
|
|
.SH NAME
|
|
CURLOPT_UPLOAD \- data upload
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_UPLOAD, long upload);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The long parameter \fIupload\fP set to 1 tells the library to prepare for and
|
|
perform an upload. The \fICURLOPT_READDATA(3)\fP and
|
|
\fICURLOPT_INFILESIZE(3)\fP or \fICURLOPT_INFILESIZE_LARGE(3)\fP options are
|
|
also interesting for uploads. If the protocol is HTTP, uploading means using
|
|
the PUT request unless you tell libcurl otherwise.
|
|
|
|
Using PUT with HTTP 1.1 implies the use of a "Expect: 100\-continue" header.
|
|
You can disable this header with \fICURLOPT_HTTPHEADER(3)\fP as usual.
|
|
|
|
If you use PUT to an HTTP 1.1 server, you can upload data without knowing the
|
|
size before starting the transfer. The library enables this by adding a header
|
|
\&"Transfer\-Encoding: chunked". With HTTP 1.0 or if you prefer not to use chunked
|
|
transfer, you must specify the size of the data with
|
|
\fICURLOPT_INFILESIZE(3)\fP or \fICURLOPT_INFILESIZE_LARGE(3)\fP.
|
|
.SH DEFAULT
|
|
0, default is download
|
|
.SH PROTOCOLS
|
|
All
|
|
.SH EXAMPLE
|
|
.nf
|
|
static size_t read_cb(char *ptr, size_t size, size_t nmemb, void *userdata)
|
|
{
|
|
FILE *src = userdata;
|
|
/* copy as much data as possible into the 'ptr' buffer, but no more than
|
|
'size' * 'nmemb' bytes */
|
|
size_t retcode = fread(ptr, size, nmemb, src);
|
|
|
|
return retcode;
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
FILE *src = fopen("local-file", "r");
|
|
curl_off_t fsize; /* set this to the size of the input file */
|
|
|
|
/* we want to use our own read function */
|
|
curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_cb);
|
|
|
|
/* enable uploading */
|
|
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
|
|
|
|
/* specify target */
|
|
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/to/newfile");
|
|
|
|
/* now specify which pointer to pass to our callback */
|
|
curl_easy_setopt(curl, CURLOPT_READDATA, src);
|
|
|
|
/* Set the size of the file to upload */
|
|
curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)fsize);
|
|
|
|
/* Now run off and do what you have been told! */
|
|
curl_easy_perform(curl);
|
|
}
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Always
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK
|
|
.SH SEE ALSO
|
|
.BR CURLOPT_INFILESIZE_LARGE (3),
|
|
.BR CURLOPT_PUT (3),
|
|
.BR CURLOPT_READFUNCTION (3)
|