gecko-dev/db/clib/getlong.c

49 строки
1009 B
C

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996, 1997, 1998
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)getlong.c 10.3 (Sleepycat) 4/10/98";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#endif
#include "db.h"
#include "clib_ext.h"
/*
* get_long --
* Return a long value inside of basic parameters.
*
* PUBLIC: void get_long __P((char *, long, long, long *));
*/
void
get_long(p, min, max, storep)
char *p;
long min, max, *storep;
{
long val;
char *end;
errno = 0;
val = strtol(p, &end, 10);
if ((val == LONG_MIN || val == LONG_MAX) && errno == ERANGE)
err(1, "%s", p);
if (p[0] == '\0' || end[0] != '\0')
errx(1, "%s: Invalid numeric argument", p);
if (val < min)
errx(1, "%s: Less than minimum value (%ld)", p, min);
if (val > max)
errx(1, "%s: Greater than maximum value (%ld)", p, max);
*storep = val;
}