filetest.c

cgi分析

/*
  filetest.cgi
  
  As simple example of a CGI written in C, using cgi-util 2.0
  
  by Bill Kendrick
  [e-mail]
  http://www.newbreedsoftware.com/cgi-util/
  
  January 8, 2000 - January 8, 2000
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "cgi-util.h"


/* --- MAIN --- */

int main(int argc, char * argv[])
{
  int res;
  
  
  /* Initialize the CGI and send out an HTTP header: */
  
  res = cgi_init();
  
  printf("Content-type: text/html\n\n");
  
  
  /* Was there an error initializing the CGI??? */
  
  if (res != CGIERR_NONE)
    {
      printf("Error # %d: %s<p>\n", res, cgi_strerror(res));
      exit(0);
    }
  
  
  /* Display some text: */
  
  printf("Hello.<p>\n");
  
  
  /* Grab some fields from an HTML form and display them: */
  
  if (cgi_getentrystr("name") != NULL)
    printf("name=%s<p>\n", cgi_getentrystr("name"));
  
  if (cgi_getentrystr("filename") != NULL)
    {
      FILE * fi;
      
      printf("The file you sent was %s and is %d bytes long.<p>\n",
	     cgi_getentrytype("filename"),
	     strlen(cgi_getentrystr("filename")));
      
      fi = fopen("out.txt", "w");
      if (fi != NULL)
	{
	  fprintf(fi, "%s", cgi_getentrystr("filename"));
	  fclose(fi);
	}
    }
  
  
  /* Close up the CGI: */
  
  printf("Goodbye!<p>\n");
  
  cgi_quit();
  
  return(0);
}