Annotation of embedaddon/curl/docs/libcurl/opts/CURLOPT_RESOLVER_START_DATA.3, revision 1.1
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! 23: .TH CURLOPT_RESOLVER_START_DATA 3 "February 14, 2018" "libcurl 7.70.0" "curl_easy_setopt options"
! 24:
! 25: .SH NAME
! 26: CURLOPT_RESOLVER_START_DATA \- custom pointer passed to the resolver start callback
! 27: .SH SYNOPSIS
! 28: #include <curl/curl.h>
! 29:
! 30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESOLVER_START_DATA, void *pointer);
! 31: .SH DESCRIPTION
! 32: Pass a \fIpointer\fP that will be untouched by libcurl and passed as the third
! 33: argument in the resolver start callback set with
! 34: \fICURLOPT_RESOLVER_START_FUNCTION(3)\fP.
! 35: .SH DEFAULT
! 36: NULL
! 37: .SH PROTOCOLS
! 38: All
! 39: .SH EXAMPLE
! 40: .nf
! 41: static int resolver_start_cb(void *resolver_state, void *reserved,
! 42: void *userdata)
! 43: {
! 44: (void)reserved;
! 45: printf("Received resolver_state=%p userdata=%p\\n",
! 46: resolver_state, userdata);
! 47: return 0;
! 48: }
! 49:
! 50: CURL *curl = curl_easy_init();
! 51: if(curl) {
! 52: curl_easy_setopt(curl, CURLOPT_RESOLVER_START_FUNCTION, resolver_start_cb);
! 53: curl_easy_setopt(curl, CURLOPT_RESOLVER_START_DATA, curl);
! 54: curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
! 55: curl_easy_perform(curl);
! 56: curl_easy_cleanup(curl);
! 57: }
! 58: .fi
! 59: .SH AVAILABILITY
! 60: Added in 7.59.0
! 61: .SH RETURN VALUE
! 62: Returns CURLE_OK
! 63: .SH "SEE ALSO"
! 64: .BR CURLOPT_RESOLVER_START_FUNCTION "(3) "
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