#include <stdio.h>                                                              
#include <stdlib.h>                                                             
#include <string.h>                                                             
#include <fcntl.h>                                                              
                                                                                
#define TRUE         0                                                          
#define FALSE       -1                                                          
                                                                                
void main(void){                                                                
   char dir[] = "/QATMHSTOUT/HOME.HTM";                                         
   int fildes = FALSE;                                                          
   char buff[256];                                                              
   long len;                                                                    
                                                                                
   memset(buff, 0, sizeof(buff));                                               
   strcpy(buff, "MY TEST DATA");                                                
   len = strlen(buff);                                                          
   if((fildes = open(dir, O_WRONLY | O_CREAT | O_TRUNC))== -1){                 
      printf("%s  を作成できません。 \n", dir);                                 
      getchar(); return;                                                        
   }                                                                            
    write(fildes, buff, len);                                                   
    close(fildes);                                                              
    getchar();                                                                  
}