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56 lines
1.6 KiB
Groff
56 lines
1.6 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_FTP_USE_EPRT.md
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.TH CURLOPT_FTP_USE_EPRT 3 "2024-06-01" libcurl
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.SH NAME
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CURLOPT_FTP_USE_EPRT \- use EPRT for FTP
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FTP_USE_EPRT, long enabled);
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.fi
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.SH DESCRIPTION
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Pass a long. If the value is 1, it tells curl to use the EPRT command when
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doing active FTP downloads (which is enabled by
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\fICURLOPT_FTPPORT(3)\fP). Using EPRT means that libcurl first attempts to use
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EPRT before using PORT, but if you pass zero to this option, it avoids using
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EPRT, only plain PORT.
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The EPRT command is a slightly newer addition to the FTP protocol than PORT
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and is the preferred command to use since it enables IPv6 to be used. Old FTP
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servers might not support it, which is why libcurl has a fallback mechanism.
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Sometimes that fallback is not enough and then this option might come handy.
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If the server is an IPv6 host, this option has no effect as EPRT is necessary
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then.
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.SH DEFAULT
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.SH PROTOCOLS
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FTP
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/file.txt");
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/* contact us back, aka "active" FTP */
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curl_easy_setopt(curl, CURLOPT_FTPPORT, "-");
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/* FTP the way the neanderthals did it */
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curl_easy_setopt(curl, CURLOPT_FTP_USE_EPRT, 0L);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 7.10.5
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.SH RETURN VALUE
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Returns CURLE_OK
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.SH SEE ALSO
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.BR CURLOPT_FTPPORT (3),
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.BR CURLOPT_FTP_USE_EPSV (3)
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