netcdf-c/nczarr_test/zhex.c
Dennis Heimbigner e7d5f24078 Add zip file support
The primary change is to support the use of a zip file as a
storage format. Simultaneously the .nz4 support is made obsolete

Use of zip requires the libzip support library, so a number of
changes to the build files (Makefile.am, CMakeLists.txt) are
necessary to locate and incorporate libzip.  The nczarr_tests
tests are also changed to add zip testing.

Other changes:
* Make sure distcheck leaves no files around.
* Add some functions to netcdf_aux to export some functions of libnetcdf.
* Add a new error NC_EFOUND as the complement of NC_EEMPTY.
* Add tracing support to nclog and use it in libnczarr.
* Modify the zmap interface to support the writeonce semantics of zip.
* Create a new s3util.c to support a variety of S3 auxilliary functions.
* EXTERNL'ize a number of functions so they can be used in s3util.
* Add support for the S3 ListObjects CommonPrefixes mechanism
  to improve search.
* Add experimental support for running nczarr X s3 tests against
  the actual Amazon S3 cloud.
2021-01-28 20:11:01 -07:00

46 lines
855 B
C

/*
* 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
#define 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;
}