/* $Id: RdOffFile.c,v 1.1 2004/05/05 21:44:46 tl Exp $ */

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stddef.h>

int
RdOffFile(char *fn, int *offset)
{
  /* process time alignment cal files */

  /* declarations */

  FILE           *fp;
  int             i1, i2, nn;
  char           *st, str[64];

  /* open file */

  fp = fopen(fn, "r");
  if (fp == NULL)
  {
    printf("could not open \"%s\"\n", fn);
    exit(1);
  };
  printf("\"%s\" open \n", fn);

  /* read values */

  nn = 0;
  st = fgets(str, 64, fp);
  while (st != NULL)
  {
    if (str[0] == 35)
    {
      /* '#' comment line, do nothing */

    } else if (str[0] == 59)
    {
      /* ';' comment line, do nothing */

    } else if (str[0] == 10)
    {
      /* empty line, do nothing */

    } else
    {
      sscanf(str, "%i %i", &i1, &i2);
      printf("det %3.3i: time offset=%5i\n", i1, i2);
      fflush(stdout);
      offset[i1] = i2;
      nn++;
    };

    /* attempt to read next line */

    st = fgets(str, 64, fp);
  };
  printf("read %i time offsets\n", nn);

  /* done */

  fclose(fp);
  return (0);

};