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authorDaniel Stenberg <daniel@haxx.se>2012-01-16 14:45:00 +0100
committerDaniel Stenberg <daniel@haxx.se>2012-01-16 14:47:00 +0100
commit21401840fa26dc88957d1dcf67c325952bc71458 (patch)
tree72454dd0c57dab9d8363fd7df0a59ad210aa51b1 /docs
parente3e24e5b362fe06b2f83b7bb430f3e46f55ddf83 (diff)
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
Diffstat (limited to 'docs')
-rw-r--r--docs/examples/.gitignore1
-rw-r--r--docs/examples/Makefile.inc2
-rw-r--r--docs/examples/url2file.c81
3 files changed, 83 insertions, 1 deletions
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, <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.
+ *
+ ***************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <curl/curl.h>
+
+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 <URL>\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;
+}