1--- 2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. 3SPDX-License-Identifier: curl 4Title: CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 5Section: 3 6Source: libcurl 7See-also: 8 - CURLOPT_SSH_AUTH_TYPES (3) 9 - CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 (3) 10 - CURLOPT_SSH_KNOWNHOSTS (3) 11 - CURLOPT_SSH_PUBLIC_KEYFILE (3) 12Protocol: 13 - SFTP 14 - SCP 15--- 16 17# NAME 18 19CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 - MD5 checksum of SSH server public key 20 21# SYNOPSIS 22 23~~~c 24#include <curl/curl.h> 25 26CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5, 27 char *md5); 28~~~ 29 30# DESCRIPTION 31 32Pass a char pointer pointing to a string containing 32 hexadecimal digits. The 33string should be the 128 bit MD5 checksum of the remote host's public key, and 34libcurl aborts the connection to the host unless the MD5 checksum match. 35 36MD5 is a weak algorithm. We strongly recommend using 37CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256(3) instead. 38 39The application does not have to keep the string around after setting this 40option. 41 42# DEFAULT 43 44NULL 45 46# EXAMPLE 47 48~~~c 49int main(void) 50{ 51 CURL *curl = curl_easy_init(); 52 if(curl) { 53 CURLcode res; 54 curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file"); 55 curl_easy_setopt(curl, CURLOPT_SSH_HOST_PUBLIC_KEY_MD5, 56 "afe17cd62a0f3b61f1ab9cb22ba269a7"); 57 res = curl_easy_perform(curl); 58 curl_easy_cleanup(curl); 59 } 60} 61~~~ 62 63# AVAILABILITY 64 65Added in 7.17.1 66 67# RETURN VALUE 68 69Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or 70CURLE_OUT_OF_MEMORY if there was insufficient heap space. 71