apache2/apache2-mod_example.c

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/* Include the required headers from httpd */
#include "httpd.h"
#include "http_core.h"
#include "http_protocol.h"
#include "http_request.h"
/* Define prototypes of our functions in this module */
static void register_hooks(apr_pool_t *pool);
static int example_handler(request_rec *r);
/* Define our module as an entity and assign a function for registering hooks */
module AP_MODULE_DECLARE_DATA example_module =
{
STANDARD20_MODULE_STUFF,
NULL, // Per-directory configuration handler
NULL, // Merge handler for per-directory configurations
NULL, // Per-server configuration handler
NULL, // Merge handler for per-server configurations
NULL, // Any directives we may have for httpd
register_hooks // Our hook registering function
};
/* register_hooks: Adds a hook to the httpd process */
static void register_hooks(apr_pool_t *pool)
{
/* Hook the request handler */
ap_hook_handler(example_handler, NULL, NULL, APR_HOOK_LAST);
}
/* The handler function for our module.
* This is where all the fun happens!
*/
static int example_handler(request_rec *r)
{
/* First off, we need to check if this is a call for the "example" handler.
* If it is, we accept it and do our things, it not, we simply return DECLINED,
* and Apache will try somewhere else.
*/
if (!r->handler || strcmp(r->handler, "example-handler")) return (DECLINED);
// The first thing we will do is write a simple "Hello, world!" back to the client.
ap_rputs("Hello, world!<br/>\n", r);
return OK;
}