/* * This file is part of MXE. See LICENSE.md for licensing information. */ #include <string.h>#include <stdio.h>#include <fitsio.h> int main(int argc, char *argv[]){    (void)argc;     fitsfile *fptr;    char card[FLEN_CARD];    int status = 0,  nkeys, ii;  /* MUST initialize status */     fits_open_file(&fptr, argv[1], READONLY, &status);    fits_get_hdrspace(fptr, &nkeys, NULL, &status);     for (ii = 1; ii <= nkeys; ii++)  {      fits_read_record(fptr, ii, card, &status); /* read keyword */      printf("%s\n", card);    }    printf("END\n\n");  /* terminate listing with END */    fits_close_file(fptr, &status);     if (status)          /* print any error messages */        fits_report_error(stderr, status);    return(status);}