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diff --git a/docs/libcurl.3 b/docs/libcurl.3 deleted file mode 100644 index 16af69845..000000000 --- a/docs/libcurl.3 +++ /dev/null @@ -1,132 +0,0 @@ -.\" You can view this file with: -.\" nroff -man [file] -.\" $Id$ -.\" -.TH libcurl 5 "14 August 2001" "libcurl 7.8.1" "libcurl overview" -.SH NAME -libcurl \- client-side URL transfers -.SH DESCRIPTION -This is an overview on how to use libcurl in your C programs. There are -specific man pages for each function mentioned in here. There's also the -libcurl-the-guide document for a complete tutorial to programming with -libcurl. - -libcurl can also be used directly from within your Java, PHP, Perl, Ruby or -Tcl programs as well, look elsewhere for documentation on this! - -All applications that use libcurl should call \fIcurl_global_init()\fP exactly -once before any libcurl function can be used. After all usage of libcurl is -complete, it \fBmust\fP call \fIcurl_global_cleanup()\fP. In between those two -calls, you can use libcurl as described below. - -When using libcurl you init your session and get a handle, which you use as -input to the following interface functions you use. Use \fIcurl_easy_init()\fP -to get the handle. - -You continue by setting all the options you want in the upcoming transfer, -most important among them is the URL itself (you can't transfer anything -without a specified URL as you may have figured out yourself). You might want -to set some callbacks as well that will be called from the library when data -is available etc. \fIcurl_easy_setopt()\fP is there for this. - -When all is setup, you tell libcurl to perform the transfer using -\fIcurl_easy_perform()\fP. It will then do the entire operation and won't -return until it is done (successfully or not). - -After the transfer has been made, you can set new options and make another -transfer, or if you're done, cleanup the session by calling -\fIcurl_easy_cleanup()\fP. If you want persistant connections, you don't -cleanup immediately, but instead run ahead and perform other transfers using -the same handle. See the chapter below for Persistant Connections. - -There is also a series of other helpful functions to use. They are: - -.RS -.TP 10 -.B curl_version() -displays the libcurl version -.TP -.B curl_getdate() -converts a date string to time_t -.TP -.B curl_getenv() -portable environment variable reader -.TP -.B curl_easy_getinfo() -get information about a performed transfer -.TP -.B curl_formadd() -helps building a HTTP form POST -.TP -.B curl_formfree() -free a list built with curl_formparse()/curl_formadd() -.TP -.B curl_slist_append() -builds a linked list -.TP -.B curl_slist_free_all() -frees a whole curl_slist -.TP -.B curl_mprintf() -portable printf() functions -.TP -.B curl_strequal() -portable case insensitive string comparisons -.RE - -.SH "LINKING WITH LIBCURL" -Starting with 7.7.2 (on unix-like machines), there's a tool named curl-config -that gets installed with the rest of the curl stuff when 'make install' is -performed. - -curl-config is added to make it easier for applications to link with libcurl -and developers to learn about libcurl and how to use it. - -Run 'curl-config --libs' to get the (additional) linker options you need to -link with the particular version of libcurl you've installed. - -For details, see the curl-config.1 man page. -.SH "LIBCURL SYMBOL NAMES" -All public functions in the libcurl interface are prefixed with 'curl_' (with -a lowercase c). You can find other functions in the library source code, but -other prefixes indicate the functions are private and may change without -further notice in the next release. - -Only use documented functions and functionality! -.SH "PORTABILITY" -libcurl works -.B exactly -the same, on any of the platforms it compiles and builds on. - -There's only one caution, and that is the win32 platform that may(*) require -you to init the winsock stuff before you use the libcurl functions. Details on -this are noted on the curl_easy_init() man page. - -(*) = it appears as if users of the cygwin environment get this done -automatically, also libcurl 7.8.1 and later can handle this for you. -.SH "THREADS" -Never ever call curl-functions simultaneously using the same handle from -several threads. libcurl is thread-safe and can be used in any number of -threads, but you must use separate curl handles if you want to use libcurl in -more than one thread simultaneously. -.SH "PERSISTANT CONNECTIONS" -With libcurl 7.7, persistant connections were added. Persistant connections -means that libcurl can re-use the same connection for several transfers, if -the conditions are right. - -libcurl will *always* attempt to use persistant connections. Whenever you use -curl_easy_perform(), libcurl will attempt to use an existing connection to do -the transfer, and if none exists it'll open a new one that will be subject -for re-use on a possible following call to curl_easy_perform(). - -To allow libcurl to take full advantage of persistant connections, you should -do as many of your file transfers as possible using the same curl -handle. When you call curl_easy_cleanup(), all the possibly open connections -held by libcurl will be closed and forgotten. - -Note that the options set with curl_easy_setopt() will be used in on every -repeat curl_easy_perform() call -.SH "COMPATIBILITY WITH OLDER LIBCURLS" -Repeated curl_easy_perform() calls on the same handle were not supported in -pre-7.7 versions, and caused confusion and undefined behaviour. - |