cpfile.c

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#define _POSIX_SOURCE
#include "prototypes_new.h"
 
void cpfile(char *fromfile,char *tofile)
 
{
 
FILE *fr,*fw;
char kbuf[10000];
int ier;
 
fr=fopen(fromfile,"r");
 
if(fr==NULL) {
 
           printf("could not open %s for read\n",fromfile);
       exit(1);
       
       }
  
fw=fopen(tofile,"w");
 
if(fw==NULL) {
 
           printf("could not open %s for write\n",tofile);
       exit(1);
       
       }
  
for(;;) {
 
     ier=fread(kbuf,sizeof(char),10000,fr);
 
     if(ier==0)
             break;
         
     fwrite(kbuf,sizeof(char),ier,fw);
 
}
 
fclose(fr);
fclose(fw);
 
chmod(tofile,S_IRUSR | S_IWUSR | 
           S_IRGRP | S_IWGRP |
           S_IROTH | S_IWOTH);
 
 
 
}