app-cgi.c

#include <fcgiapp.h>
#include <stdlib.h>

const char * meta[] = {
    "AUTH_TYPE",
    "CONTENT_LENGTH",
    "CONTENT_TYPE",
    "GATEWAY_INTERFACE",
    "PATH_INFO",
    "PATH_TRANSLATED",
    "QUERY_STRING",
    "REMOTE_ADDR",
    "REMOTE_HOST",
    "REMOTE_IDENT",
    "REMOTE_USER",
    "REQUEST_METHOD",
    "SCRIPT_NAME",
    "SERVER_NAME",
    "SERVER_PORT",
    "SERVER_PROTOCOL",
    "SERVER_SOFTWARE",
    0
};

int main(void)
{
    FCGX_Request request;
    int count = 0;

    FCGX_Init();
    FCGX_InitRequest(&request, 0, 0);

    while(FCGX_Accept_r(&request) == 0) {
        const char **m;
        FCGX_FPrintF(request.out,
                     "Status: 200 OK\r\n"
                     "Content-type: text/html\r\n"
                     "\r\n"
                     "<title>FastCGI Hello App!</title>"
                     "<h1>FastCGI Hello App!</h1>"
                     "Request number %d running on host <i>%s</i><ul>",
                     ++count, FCGX_GetParam("SERVER_NAME", request.envp));
        for (m=meta;*m;++m) {
            const char *v = FCGX_GetParam(*m, request.envp);
            FCGX_FPrintF(request.out,
                         "<li>%s: %s</li>", *m,
                         v ? v : "not set");
        }
        FCGX_FPrintF(request.out, "</ui>");
    }
    return 0;
}