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CURLOPT_MAXFILESIZE(3) Library Functions Manual CURLOPT_MAXFILESIZE(3) NAME CURLOPT_MAXFILESIZE - maximum file size allowed to download SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXFILESIZE, long size); DESCRIPTION Pass a long as parameter. This specifies the maximum accepted size (in bytes) of a file to download. If the file requested is found larger than this value, the transfer is aborted and CURLE_FILESIZE_EXCEEDED is returned. Passing a zero size disables this, and passing a negative size yields a CURLE_BAD_FUNCTION_ARGUMENT. The file size is not always known prior to the download start, and for such transfers this option has no effect - even if the file transfer eventually ends up being larger than this given limit. If you want a limit above 2GB, use CURLOPT_MAXFILESIZE_LARGE(3). Since 8.4.0, this option also stops ongoing transfers if they reach this threshold. DEFAULT 0, meaning disabled. PROTOCOLS This functionality affects all supported protocols EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode ret; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); /* refuse to download if larger than 1000 bytes */ curl_easy_setopt(curl, CURLOPT_MAXFILESIZE, 1000L); ret = curl_easy_perform(curl); } } AVAILABILITY Added in curl 7.10.8 RETURN VALUE curl_easy_setopt(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLOPT_MAXFILESIZE_LARGE(3), CURLOPT_MAX_RECV_SPEED_LARGE(3) libcurl 2025-06-03 CURLOPT_MAXFILESIZE(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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