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authorGunter Knauf <gk@gknw.de>2009-09-05 15:23:37 +0000
committerGunter Knauf <gk@gknw.de>2009-09-05 15:23:37 +0000
commit7df26a5415bc2f3f93d9537a99a76079f73688f6 (patch)
tree62e796086703c6252fca5937144474a57b4e48f9
parentf3611c2773c95128166e1fd84726a2f3da50629b (diff)
added ftpgetinfo sample since users asked frequently for such a sample.
-rw-r--r--docs/examples/ftpgetinfo.c77
1 files changed, 77 insertions, 0 deletions
diff --git a/docs/examples/ftpgetinfo.c b/docs/examples/ftpgetinfo.c
new file mode 100644
index 000000000..a0af09bb3
--- /dev/null
+++ b/docs/examples/ftpgetinfo.c
@@ -0,0 +1,77 @@
+/*****************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <curl/curl.h>
+#include <curl/types.h>
+#include <curl/easy.h>
+
+/*
+ * This is an example showing how to check a single file's size and mtime
+ * from an FTP server.
+ */
+
+static size_t throw_away(void *ptr, size_t size, size_t nmemb, void *data)
+{
+ /* we are not interested in the headers itself,
+ so we only return the size we would have saved ... */
+ return (size_t)(size * nmemb);
+}
+
+int main(void)
+{
+ /* Check for binutils 2.19.1 from ftp.gnu.org's FTP site. */
+ char ftpurl[] = "ftp://ftp.gnu.org/gnu/binutils/binutils-2.19.1.tar.bz2";
+ CURL *curl;
+ CURLcode res;
+ const time_t filetime;
+ const double filesize;
+ const char *filename = strrchr(ftpurl, '/') + 1;
+
+ curl_global_init(CURL_GLOBAL_DEFAULT);
+
+ curl = curl_easy_init();
+ if(curl) {
+ curl_easy_setopt(curl, CURLOPT_URL, ftpurl);
+ /* No download if the file */
+ curl_easy_setopt(curl, CURLOPT_NOBODY, 1L);
+ /* Ask for filetime */
+ curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
+ /* No header output: TODO 14.1 http-style HEAD output for ftp */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, throw_away);
+ curl_easy_setopt(curl, CURLOPT_HEADER, 0L);
+ /* Switch on full protocol/debug output */
+ /* curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); */
+
+ res = curl_easy_perform(curl);
+
+ if(CURLE_OK == res) {
+ /* http://curl.haxx.se/libcurl/c/curl_easy_getinfo.html */
+ res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
+ if((CURLE_OK == res) && filetime)
+ printf("filetime %s: %s", filename, ctime(&filetime));
+ res = curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &filesize);
+ if((CURLE_OK == res) && filesize)
+ printf("filesize %s: %0.0f bytes\n", filename, filesize);
+ } else {
+ /* we failed */
+ fprintf(stderr, "curl told us %d\n", res);
+ }
+
+ /* always cleanup */
+ curl_easy_cleanup(curl);
+ }
+
+ curl_global_cleanup();
+
+ return 0;
+}