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| -rw-r--r-- | docs/examples/ftpgetinfo.c | 77 |
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; +} |