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CURLOPT_IG...TENT_LENGTH(3) Library Functions Manual CURLOPT_IG...TENT_LENGTH(3) NAME CURLOPT_IGNORE_CONTENT_LENGTH - ignore content length SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IGNORE_CONTENT_LENGTH, long ignore); DESCRIPTION If ignore is set to 1L, ignore the Content-Length header in the HTTP re- sponse and ignore asking for or relying on it for FTP transfers. This is useful for doing HTTP transfers with ancient web servers which re- port incorrect content length for files over 2 gigabytes. If this option is used, curl cannot accurately report progress, and it instead stops the download when the server ends the connection. It is also useful with FTP when for example the file is growing while the transfer is in progress which otherwise unconditionally causes libcurl to report error. Only use this option if strictly necessary. DEFAULT 0 PROTOCOLS This functionality affects ftp and http EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); /* we know the server is silly, ignore content-length */ curl_easy_setopt(curl, CURLOPT_IGNORE_CONTENT_LENGTH, 1L); result = curl_easy_perform(curl); curl_easy_cleanup(curl); } } HISTORY Support for FTP added in 7.46.0. AVAILABILITY Added in curl 7.14.1 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_HTTP_VERSION(3), CURLOPT_MAXFILESIZE_LARGE(3) libcurl 2026-06-11 CURLOPT_IG...TENT_LENGTH(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | HISTORY | AVAILABILITY | RETURN VALUE | SEE ALSO
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