From 1c9298ff1b6f861214768d645706fc74d417882c Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Mon, 4 Jan 2016 15:12:08 +0100 Subject: [PATCH] getredirect.c: a new example --- docs/examples/Makefile.inc | 4 +-- docs/examples/getredirect.c | 70 +++++++++++++++++++++++++++++++++++++ 2 files changed, 72 insertions(+), 2 deletions(-) create mode 100644 docs/examples/getredirect.c diff --git a/docs/examples/Makefile.inc b/docs/examples/Makefile.inc index b2161300b..06f003e9e 100644 --- a/docs/examples/Makefile.inc +++ b/docs/examples/Makefile.inc @@ -5,7 +5,7 @@ # | (__| |_| | _ <| |___ # \___|\___/|_| \_\_____| # -# Copyright (C) 1998 - 2015, Daniel Stenberg, , et al. +# Copyright (C) 1998 - 2016, Daniel Stenberg, , et al. # # This software is licensed as described in the file COPYING, which # you should have received as part of this distribution. The terms @@ -32,7 +32,7 @@ check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \ imap-list imap-lsub imap-fetch imap-store imap-append imap-examine \ imap-search imap-create imap-delete imap-copy imap-noop imap-ssl \ imap-tls imap-multi url2file sftpget ftpsget postinmemory http2-download \ - http2-upload http2-serverpush + http2-upload http2-serverpush getredirect.c # These examples require external dependencies that may not be commonly # available on POSIX systems, so don't bother attempting to compile them here. diff --git a/docs/examples/getredirect.c b/docs/examples/getredirect.c new file mode 100644 index 000000000..23d34834d --- /dev/null +++ b/docs/examples/getredirect.c @@ -0,0 +1,70 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2016, Daniel Stenberg, , et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at http://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ +/* + * Show how to extract Location: header and URL to redirect to. + * + */ +#include +#include + +int main(void) +{ + CURL *curl; + CURLcode res; + char *location; + long response_code; + + curl = curl_easy_init(); + if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "http://example.com"); + + /* example.com is redirected, figure out the redirection! */ + + /* Perform the request, res will get the return code */ + res = curl_easy_perform(curl); + /* Check for errors */ + if(res != CURLE_OK) + fprintf(stderr, "curl_easy_perform() failed: %s\n", + curl_easy_strerror(res)); + else { + res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code); + if((res == CURLE_OK) && + ((code / 100) != 3)) { + /* a redirect implies a 3xx response code */ + fprintf(stderr, "Not a redirect.\n"); + } + else { + res = curl_easy_getinfo(curl, CURLINFO_REDIRECT_URL, &location); + + if((res == CURLE_OK) && location) { + /* This is the new absolute URL that you could redirect to, even if + * the Location: response header may have been a relative URL. */ + printf("Redirected to: %s\n", location); + } + } + } + + /* always cleanup */ + curl_easy_cleanup(curl); + } + return 0; +} -- 2.40.0