CGI program _cgi

1. header file

#include <fcgi_stdio.h>

2, while (Fcgi_accept () >=0)//Here into the cycle, the front desk every request once fcgi service, on the cycle once

In-loop processing:

Char *query_string=getenv ("query_string");

3, from the query_string to resolve the query field, for follow-up operations.

4, with printf return processing results to the Web server, and then the Web server will return the results to the client.

(The printf function here is redefined in fcgi_stdio.h)

Attached: fcgi_stdio.h

/*
* Fcgi_stdio.h--
*
* Fastcgi-stdio Compatibility Package
*
*
* Copyright (c) 1996 Open Market, Inc.
*
* The file "LICENSE." TERMS "For information on usage and redistribution
* of this file, with a disclaimer of all warranties.
*
* $Id: fcgi_stdio.h,v 1.5 2001/06/22 13:21:15 robs Exp $
*/

#ifndef _fcgi_stdio
#define _fcgi_stdio 1

#include <stdio.h>
#include <sys/types.h>
#include "Fcgiapp.h"

#if defined (c_plusplus) | | Defined (__cplusplus)
extern "C" {
#endif

#ifndef DLLAPI
#ifdef _WIN32
#define DLLAPI __declspec (dllimport)
#else
#define Dllapi
#endif
#endif

/*
* Wrapper type for FILE
*/

typedef struct {
FILE *stdio_stream;
Fcgx_stream *fcgx_stream;
} fcgi_file;

/*
* The four new functions and two new macros
*/

Dllapi int fcgi_accept (void);
Dllapi void fcgi_finish (void);
Dllapi int fcgi_startfilterdata (void);
DLLAPI void fcgi_setexitstatus (int status);

#define Fcgi_tofile (Fcgi_file) (Fcgi_file->stdio_stream)
#define Fcgi_tofcgistream (Fcgi_file) (Fcgi_file->fcgx_stream)

/*
* Wrapper stdin, stdout, and stderr variables, set up by Fcgi_accept ()
*/

DLLAPI extern fcgi_file _fcgi_sf[];
#define Fcgi_stdin (&_fcgi_sf[0])
#define FCGI_STDOUT (&_fcgi_sf[1])
#define FCGI_STDERR (&_fcgi_sf[2])

/*
* Wrapper function prototypes, grouped according to sections
* of Harbison & Steele, "C:a Reference Manual," fourth edition,
* Prentice-hall, 1995.
*/

DLLAPI void Fcgi_perror (const char *STR);

DLLAPI fcgi_file *fcgi_fopen (const char *path, const char *mode);
Dllapi int Fcgi_fclose (Fcgi_file *fp);
Dllapi int Fcgi_fflush (Fcgi_file *fp);
DLLAPI fcgi_file *fcgi_freopen (const char *path, const char *mode, Fcgi_file *FP);

Dllapi int Fcgi_setvbuf (fcgi_file *fp, char *buf, int bufmode, size_t size);
Dllapi void Fcgi_setbuf (Fcgi_file *fp, char *buf);

Dllapi int Fcgi_fseek (fcgi_file *fp, long offset, int whence);
Dllapi int Fcgi_ftell (Fcgi_file *fp);
Dllapi void Fcgi_rewind (Fcgi_file *fp);
#ifdef Have_fpos
Dllapi int Fcgi_fgetpos (fcgi_file *fp, fpos_t *pos);
Dllapi int Fcgi_fsetpos (fcgi_file *fp, const fpos_t *pos);
#endif
Dllapi int fcgi_fgetc (Fcgi_file *fp);
Dllapi int Fcgi_getchar (void);
DLLAPI int fcgi_ungetc (int c, fcgi_file *FP);

Dllapi Char *fcgi_fgets (char *str, int size, fcgi_file *FP);
Dllapi Char *fcgi_gets (char *str);

/*
* Not yet implemented
*
* int fcgi_fscanf (fcgi_file *fp, const char *format, ...);
* int fcgi_scanf (const char *format, ...);
*
*/

DLLAPI int FCGI_FPUTC (int c, fcgi_file *FP);
DLLAPI int Fcgi_putchar (int c);

DLLAPI int fcgi_fputs (const char *STR, Fcgi_file *FP);
DLLAPI int fcgi_puts (const char *STR);

Dllapi int fcgi_fprintf (fcgi_file *fp, const char *format, ...);
DLLAPI int fcgi_printf (const char *format, ...);

Dllapi int fcgi_vfprintf (fcgi_file *fp, const char *format, va_list AP);
DLLAPI int fcgi_vprintf (const char *format, va_list AP);

Dllapi size_t fcgi_fread (void *ptr, size_t size, size_t nmemb, Fcgi_file *FP);
Dllapi size_t fcgi_fwrite (void *ptr, size_t size, size_t nmemb, Fcgi_file *FP);

Dllapi int fcgi_feof (Fcgi_file *fp);
Dllapi int Fcgi_ferror (Fcgi_file *fp);
Dllapi void Fcgi_clearerr (Fcgi_file *fp);

Dllapi fcgi_file *fcgi_tmpfile (void);

Dllapi int Fcgi_fileno (Fcgi_file *fp);
Dllapi fcgi_file *fcgi_fdopen (int fd, const char *mode);
DLLAPI fcgi_file *fcgi_popen (const char *cmd, const char *type);
Dllapi int Fcgi_pclose (fcgi_file *);

/*
* The remaining definitions are for application programs,
* Not for FCGI_STDIO.C
*/

#ifndef No_fcgi_defines

/*
* Replace standard types, variables, and functions with FastCGI wrappers.
* Use undef in case a macro is already defined.
*/

#undef FILE
#define FILE Fcgi_file

#undef stdin
#define STDIN Fcgi_stdin
#undef stdout
#define STDOUT Fcgi_stdout
#undef stderr
#define STDERR Fcgi_stderr

#undef perror
#define PERROR Fcgi_perror

#undef fopen
#define FOPEN Fcgi_fopen
#undef fclose
#define Fclose Fcgi_fclose
#undef fflush
#define Fflush Fcgi_fflush
#undef Freopen
#define Freopen Fcgi_freopen

#undef SETVBUF
#define SETVBUF Fcgi_setvbuf
#undef SETBUF
#define SETBUF Fcgi_setbuf

#undef fseek
#define Fseek Fcgi_fseek
#undef Ftell
#define Ftell Fcgi_ftell
#undef Rewind
#define REWIND Fcgi_rewind
#undef Fgetpos
#define FGETPOS Fcgi_fgetpos
#undef Fsetpos
#define FSETPOS Fcgi_fsetpos

#undef fgetc
#define FGETC FCGI_FGETC
#undef GETC
#define GETC FCGI_FGETC
#undef GetChar
#define GETCHAR Fcgi_getchar
#undef UNGETC
#define UNGETC FCGI_UNGETC

#undef fgets
#define Fgets Fcgi_fgets
#undef gets
#define GETS Fcgi_gets

#undef FPUTC
#define FPUTC FCGI_FPUTC
#undef PUTC
#define PUTC FCGI_FPUTC
#undef Putchar
#define PUTCHAR Fcgi_putchar

#undef fputs
#define Fputs Fcgi_fputs
#undef puts
#define PUTS Fcgi_puts

#undef fprintf
#define FPRINTF fcgi_fprintf
#undef printf
#define PRINTF fcgi_printf

#undef vfprintf
#define VFPRINTF fcgi_vfprintf
#undef vprintf
#define VPRINTF fcgi_vprintf

#undef fread
#define Fread Fcgi_fread
#undef fwrite
#define Fwrite Fcgi_fwrite

#undef feof
#define FEOF fcgi_feof
#undef ferror
#define FERROR Fcgi_ferror
#undef Clearerr
#define CLEARERR Fcgi_clearerr

#undef tmpfile
#define Tmpfile Fcgi_tmpfile

#undef Fileno
#define Fileno Fcgi_fileno
#undef Fdopen
#define Fdopen Fcgi_fdopen
#undef Popen
#define Popen Fcgi_popen
#undef Pclose
#define Pclose Fcgi_pclose

#endif/* No_fcgi_defines * *

#if defined (__cplusplus) | | Defined (c_plusplus)
}/* terminate extern "C" {* * *
#endif

#endif/* _fcgi_stdio * *