curl/docs/examples
Markus Elfring 29c655c0a6 Bug #149: Deletion of unnecessary checks before calls of the function "free"
The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first

This issue was fixed by using the software Coccinelle 1.0.0-rc24.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
2015-03-16 12:13:56 +01:00
..
.gitignore examples: gitignore more binaries 2014-01-29 10:22:40 +01:00
10-at-a-time.c examples: remove sony.com from 10-at-a-time 2014-12-04 14:27:44 -08:00
adddocsref.pl
anyauthput.c
asiohiper.cpp asiohiper.cpp: No need to initialise members of ConnInfo 2014-12-27 12:01:13 +00:00
cacertinmem.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
certinfo.c
chkspeed.c
cookie_interface.c
curlgtk.c
curlx.c
debug.c
evhiperfifo.c examples: remove all use of CURLM_CALL_MULTI_PERFORM 2014-02-17 08:25:39 +01:00
externalsocket.c code/docs: Use Unix rather than UNIX to avoid use of the trademark 2014-12-26 21:42:44 +00:00
fileupload.c
fopen.c Bug #149: Deletion of unnecessary checks before calls of the function "free" 2015-03-16 12:13:56 +01:00
ftp-wildcard.c ftp-wildcard.c: spell fix 2014-09-09 11:10:18 +02:00
ftpget.c
ftpgetinfo.c
ftpgetresp.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
ftpsget.c
ftpupload.c
ftpuploadresume.c
getinfo.c
getinmemory.c Bug #149: Deletion of unnecessary checks before calls of the function "free" 2015-03-16 12:13:56 +01:00
ghiper.c examples: remove all use of CURLM_CALL_MULTI_PERFORM 2014-02-17 08:25:39 +01:00
hiperfifo.c examples: remove all use of CURLM_CALL_MULTI_PERFORM 2014-02-17 08:25:39 +01:00
href_extractor.c example: use correct type (long) for CURLOPT_FOLLOWLOCATION 2014-07-03 22:47:28 +02:00
htmltidy.c
htmltitle.cpp
http-post.c
httpcustomheader.c httpcustomheader.c: make use of more CURLOPT_HTTPHEADER features 2014-10-16 11:38:32 +02:00
httpput.c
https.c
imap-append.c imap-append.c: Fixed compilation errors on some platforms 2014-03-30 10:56:51 +01:00
imap-copy.c
imap-create.c
imap-delete.c
imap-examine.c
imap-fetch.c
imap-list.c
imap-lsub.c examples: Added IMAP LSUB example 2014-02-16 00:09:22 +00:00
imap-multi.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
imap-noop.c examples: Added IMAP NOOP example 2014-01-05 14:22:35 +00:00
imap-search.c
imap-ssl.c
imap-store.c
imap-tls.c
Makefile.am
makefile.dj
Makefile.example
Makefile.inc Makefile.inc: Added our standard header and updated file formatting 2014-12-06 19:53:44 +00:00
Makefile.m32 build: updated dependencies in makefiles. 2014-12-05 14:54:25 +01:00
Makefile.netware build: updated dependencies in makefiles. 2014-12-05 14:54:25 +01:00
multi-app.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
multi-debugcallback.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
multi-double.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
multi-post.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
multi-single.c multi-single.c: switch to use curl_multi_wait 2014-11-25 11:45:38 +01:00
multi-uv.c multi-uv.c: Updated for curl coding standards 2014-11-19 20:15:32 +00:00
multithread.c
opensslthreadlock.c
persistant.c
pop3-dele.c pop3-dele.c: Added missing CURLOPT_NOBODY following feedback 2014-01-15 23:39:46 +00:00
pop3-list.c examples: Added return of error code in POP3 examples 2014-01-05 12:05:02 +00:00
pop3-multi.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
pop3-noop.c examples: Added POP3 NOOP example 2014-01-05 13:59:21 +00:00
pop3-retr.c examples: Added POP3 RETR example 2014-01-05 12:17:15 +00:00
pop3-ssl.c examples: Added POP3 TLS example 2014-01-05 14:26:51 +00:00
pop3-stat.c pop3-stat.c: Corrected small typo from commit 91d62e9abd 2014-01-05 13:56:49 +00:00
pop3-tls.c examples: Added POP3 TLS example 2014-01-05 14:26:51 +00:00
pop3-top.c examples: Added POP3 TOP example 2014-01-05 13:16:41 +00:00
pop3-uidl.c examples: Added POP3 UIDL example 2014-01-05 12:31:28 +00:00
post-callback.c
postinmemory.c Bug #149: Deletion of unnecessary checks before calls of the function "free" 2015-03-16 12:13:56 +01:00
postit2.c
progressfunc.c
README
resolve.c
rtsp.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
sampleconv.c
sendrecv.c
sepheaders.c sepheaders.c: Applied curl oding standards 2014-12-31 11:20:41 +00:00
sessioninfo.c
sftpget.c
simple.c
simplepost.c
simplessl.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
smooth-gtk-thread.c
smtp-expn.c examples: Added required libcurl version information to SMTP examples 2014-01-05 23:00:56 +00:00
smtp-mail.c examples: Updated SMTP MAIL example to return libcurl result code 2014-01-12 15:55:08 +00:00
smtp-multi.c examples: Wait recommended 100ms when no file descriptors are ready 2014-11-19 13:34:05 +01:00
smtp-ssl.c examples: Synchronised comments between SMTP MAIL examples 2014-01-12 15:43:07 +00:00
smtp-tls.c examples: Synchronised comments between SMTP MAIL examples 2014-01-12 15:43:07 +00:00
smtp-vrfy.c examples: Added required libcurl version information to SMTP examples 2014-01-05 23:00:56 +00:00
synctime.c synctime.c: added own user-agent string. 2014-12-13 15:02:30 +01:00
threaded-ssl.c
url2file.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
usercertinmem.c Update instances of some obsolete CURLOPTs to their new names 2014-07-05 22:47:13 +02:00
version-check.pl
xmlstream.c

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This directory is for libcurl programming examples. They are meant to show
some simple steps on how you can build your own application to take full
advantage of libcurl.

If you end up with other small but still useful example sources, please mail
them for submission in future packages and on the web site.

BUILDING

The Makefile.example is an example makefile that could be used to build these
examples. Just edit the file according to your system and requirements first.

Most examples should build fine using a command line like this:

  $ `curl-config --cc --cflags --libs` -o example example.c

Some compilers don't like having the arguments in this order but instead
want you do reorganize them like:

  $ `curl-config --cc` -o example example.c `curl-config --cflags --libs`

*PLEASE* do not use the curl.haxx.se site as a test target for your libcurl
applications/experiments. Even if some of the examples use that site as a URL
at some places, it doesn't mean that the URLs work or that we expect you to
actually torture our web site with your tests!  Thanks.

EXAMPLES

anyauthput.c   - HTTP PUT using "any" authentication method
cacertinmem.c  - Use a built-in PEM certificate to retrieve a https page
cookie_interface.c - shows usage of simple cookie interface
curlgtk.c      - download using a GTK progress bar
curlx.c        - getting file info from the remote cert data
debug.c        - showing how to use the debug callback
fileupload.c   - uploading to a file:// URL
fopen.c        - fopen() layer that supports opening URLs and files
ftpget.c       - simple getting a file from FTP
ftpgetresp.c   - get the response strings from the FTP server
ftpupload.c    - upload a file to an FTP server
ftpuploadresume.c - resume an upload to an FTP server
getinfo.c      - get the Content-Type from the recent transfer
getinmemory.c  - download a file to memory only
ghiper.c       - curl_multi_socket() using code with glib-2
hiperfifo.c    - downloads all URLs written to the fifo, using
                 curl_multi_socket() and libevent
htmltidy.c     - download a document and use libtidy to parse the HTML
htmltitle.cc   - download a HTML file and extract the <title> tag from a HTML
                 page using libxml
http-post.c    - HTTP POST
httpput.c      - HTTP PUT a local file
https.c        - simple HTTPS transfer
imap.c         - simple IMAP transfer
multi-app.c    - a multi-interface app
multi-debugcallback.c - a multi-interface app using the debug callback
multi-double.c - a multi-interface app doing two simultaneous transfers
multi-post.c   - a multi-interface app doing a multipart formpost
multi-single.c - a multi-interface app getting a single file
multi-uv.c     - a multi-interface app using libuv
multithread.c  - an example using multi-treading transferring multiple files
opensslthreadlock.c - show how to do locking when using OpenSSL multi-threaded
persistant.c   - request two URLs with a persistent connection
pop3s.c        - POP3S transfer
pop3slist.c    - POP3S LIST
post-callback.c - send a HTTP POST using a callback
postit2.c      - send a HTTP multipart formpost
sampleconv.c   - showing how a program on a non-ASCII platform would invoke
                 callbacks to do its own codeset conversions instead of using
                 the built-in iconv functions in libcurl
sepheaders.c   - download headers to a separate file
simple.c       - the most simple download a URL source
simplepost.c   - HTTP POST
simplessl.c    - HTTPS example with certificates many options set
synctime.c     - Sync local time by extracting date from remote HTTP servers
url2file.c     - download a document and store it in a file
xmlstream.c    - Stream-parse a document using the streaming Expat parser
10-at-a-time.c - Download many files simultaneously, 10 at a time.