You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
854 B
46 lines
854 B
2 years ago
|
/*
|
||
|
|
* Copyright 2018, University Corporation for Atmospheric Research
|
||
|
|
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include "stdlib.h"
|
||
|
|
#include "stdio.h"
|
||
|
|
|
||
|
|
#ifdef HAVE_UNISTD_H
|
||
|
|
#include <unistd.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#undef DEBUG
|
||
|
|
|
||
|
|
static char hex[16] = "0123456789abcdef";
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int argc, char** argv)
|
||
|
|
{
|
||
|
|
unsigned char c;
|
||
|
|
unsigned int c0,c1;
|
||
|
|
FILE* f = NULL;
|
||
|
|
|
||
|
|
if(argc > 1) {
|
||
|
|
/* use argv[1] as input */
|
||
|
|
f = fopen(argv[1],"r");
|
||
|
|
if(f == NULL) {fprintf(stderr,"No such file: %s\n",argv[1]); exit(1);}
|
||
|
|
} else
|
||
|
|
f = stdin;
|
||
|
|
|
||
|
|
for(;;) {
|
||
|
|
int ret = fread(&c, 1, 1, f);
|
||
|
|
if(ret != 1) break;
|
||
|
|
c1 = c;
|
||
|
|
c0 = c1 & 0xf;
|
||
|
|
c1 = (c1 >> 4);
|
||
|
|
c0 = hex[c0];
|
||
|
|
c1 = hex[c1];
|
||
|
|
printf("%c%c",(char)c1,(char)c0);
|
||
|
|
}
|
||
|
|
if(f != stdin) fclose(f);
|
||
|
|
return 0;
|
||
|
|
}
|