CURLINFO_CONTENT_TYPE explained
Name
CURLINFO_CONTENT_TYPE - get Content-Type
Synopsis
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_TYPE, char **ct);
Description
Pass a pointer to a char pointer to receive the content-type of the downloaded object. This is the value read from the Content-Type: field. If you get NULL, it means that the server did not send a valid Content-Type header or that the protocol used does not support this.
The ct pointer is set to NULL or pointing to private memory. You MUST NOT free it - it gets freed when you call curl_easy_cleanup on the corresponding CURL handle.
The modern way to get this header from a response is to instead use the curl_easy_header function.
Protocols
This functionality affects http only
Example
int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); res = curl_easy_perform(curl); if(!res) { /* extract the content-type */ char *ct = NULL; res = curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &ct); if(!res && ct) { printf("Content-Type: %s\n", ct); } } curl_easy_cleanup(curl); } }
Availability
Added in curl 7.9.4
Return value
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
See also
CURLOPT_HEADERFUNCTION(3), curl_easy_getinfo(3), curl_easy_header(3), curl_easy_setopt(3)
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