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authorDaniel Stenberg <daniel@haxx.se>2016-01-04 15:12:08 +0100
committerDaniel Stenberg <daniel@haxx.se>2016-01-04 15:12:37 +0100
commit1c9298ff1b6f861214768d645706fc74d417882c (patch)
treec69d4206c01ebba0574421438986808f7dfef497 /docs
parentddfa0d850b18c1ff17e5c6ebf44d23318f2bbdc0 (diff)
getredirect.c: a new example
Diffstat (limited to 'docs')
-rw-r--r--docs/examples/Makefile.inc4
-rw-r--r--docs/examples/getredirect.c70
2 files changed, 72 insertions, 2 deletions
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, <daniel@haxx.se>, et al.
+# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, 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, <daniel@haxx.se>, 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.
+ *
+ ***************************************************************************/
+/* <DESC>
+ * Show how to extract Location: header and URL to redirect to.
+ * </DESC>
+ */
+#include <stdio.h>
+#include <curl/curl.h>
+
+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;
+}