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23 .TH CURLOPT_READDATA 3 "May 01, 2016" "libcurl 7.59.0" "curl_easy_setopt options"
26 CURLOPT_READDATA \- custom pointer passed to the read callback
28 #include <curl/curl.h>
30 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_READDATA, void *pointer);
32 Data \fIpointer\fP to pass to the file read function. If you use the
33 \fICURLOPT_READFUNCTION(3)\fP option, this is the pointer you'll get as
34 input in the 4th argument to the callback.
36 If you don't specify a read callback but instead rely on the default internal
37 read function, this data must be a valid readable FILE * (cast to 'void *').
39 If you're using libcurl as a win32 DLL, you MUST use a
40 \fICURLOPT_READFUNCTION(3)\fP if you set this option.
42 By default, this is a FILE * to stdin.
44 This is used for all protocols when sending data.
47 CURL *curl = curl_easy_init();
50 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
52 /* pass pointer that gets passed in to the
53 CURLOPT_READFUNCTION callback */
54 curl_easy_setopt(curl, CURLOPT_READDATA, &this);
56 curl_easy_perform(curl);
60 This option was once known by the older name CURLOPT_INFILE, the name
61 \fICURLOPT_READDATA(3)\fP was introduced in 7.9.7.
63 This will return CURLE_OK.
65 .BR CURLOPT_READFUNCTION "(3), " CURLOPT_WRITEDATA "(3), "