From 21401840fa26dc88957d1dcf67c325952bc71458 Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Mon, 16 Jan 2012 14:45:00 +0100 Subject: url2file: new simple example Just showing how to download the contents of a given URL into a local file. Based on a suggestion and example code by Georg Potthast --- docs/examples/.gitignore | 1 + docs/examples/Makefile.inc | 2 +- docs/examples/url2file.c | 81 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 83 insertions(+), 1 deletion(-) create mode 100644 docs/examples/url2file.c (limited to 'docs/examples') diff --git a/docs/examples/.gitignore b/docs/examples/.gitignore index 2f7e8c8f3..3912f5f4d 100644 --- a/docs/examples/.gitignore +++ b/docs/examples/.gitignore @@ -40,3 +40,4 @@ simplesmtp simplessl smtp-multi smtp-tls +url2file diff --git a/docs/examples/Makefile.inc b/docs/examples/Makefile.inc index d814fe819..611881d62 100644 --- a/docs/examples/Makefile.inc +++ b/docs/examples/Makefile.inc @@ -5,7 +5,7 @@ check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \ persistant post-callback postit2 sepheaders simple simplepost simplessl \ sendrecv httpcustomheader certinfo chkspeed ftpgetinfo ftp-wildcard \ smtp-multi simplesmtp smtp-tls rtsp externalsocket resolve \ - progressfunc pop3s pop3slist imap + progressfunc pop3s pop3slist imap url2file # 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/url2file.c b/docs/examples/url2file.c new file mode 100644 index 000000000..64d27c88f --- /dev/null +++ b/docs/examples/url2file.c @@ -0,0 +1,81 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2012, 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. + * + ***************************************************************************/ +#include +#include +#include + +#include + +static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) +{ + size_t written = fwrite(ptr, size, nmemb, (FILE *)stream); + return written; +} + +int main(int argc, char *argv[]) +{ + CURL *curl_handle; + static const char *pagefilename = "page.out"; + FILE *pagefile; + + if(argc < 2 ) { + printf("Usage: %s \n", argv[0]); + return 1; + } + + curl_global_init(CURL_GLOBAL_ALL); + + /* init the curl session */ + curl_handle = curl_easy_init(); + + /* set URL to get here */ + curl_easy_setopt(curl_handle, CURLOPT_URL, argv[1]); + + /* Switch on full protocol/debug output while testing */ + curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L); + + /* disable progress meter, set to 0L to enable and disable debug output */ + curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L); + + /* send all data to this function */ + curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data); + + /* open the file */ + pagefile = fopen(pagefilename, "wb"); + if (pagefile) { + + /* write the page body to this file handle. CURLOPT_FILE is also known as + CURLOPT_WRITEDATA*/ + curl_easy_setopt(curl_handle, CURLOPT_FILE, pagefile); + + /* get it! */ + curl_easy_perform(curl_handle); + + /* close the header file */ + fclose(pagefile); + } + + /* cleanup curl stuff */ + curl_easy_cleanup(curl_handle); + + return 0; +} -- cgit v1.2.3