#define NOCCARGC
#include stdio.h
/*
** Get command line argument.
** Entry: n     = Number of the argument.
**        s     = Destination string pointer.
**        size  = Size of the destination string.
**        argc  = Argument count from main().
**        argv  = Argument vector(s) from main().
** Returns number of characters moved on success,
** else EOF.
*/
getarg(n,s,size,argc,argv)
  int n; char *s; int size, argc, argv[]; {
  char *str;
  int i;
  if(n < 0 | n >= argc) {
    *s = NULL;
    return (EOF);
    }
  i = 0;
  str=argv[n];
  while(i<size) {
    if((s[i]=str[i])==NULL) break;
    ++i;
    }
  s[i]=NULL;
  return (i);
  }