db_getlong.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: db_getlong.c,v 11.18 2002/03/28 20:13:33 bostic Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <limits.h>
- #include <stdlib.h>
- #include <string.h>
- #endif
- #include "db_int.h"
- /*
- * __db_getlong --
- * Return a long value inside of basic parameters.
- *
- * PUBLIC: int __db_getlong
- * PUBLIC: __P((DB *, const char *, char *, long, long, long *));
- */
- int
- __db_getlong(dbp, progname, p, min, max, storep)
- DB *dbp;
- const char *progname;
- char *p;
- long min, max, *storep;
- {
- long val;
- char *end;
- __os_set_errno(0);
- val = strtol(p, &end, 10);
- if ((val == LONG_MIN || val == LONG_MAX) &&
- __os_get_errno() == ERANGE) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: %sn", progname, p, strerror(ERANGE));
- else
- dbp->err(dbp, ERANGE, "%s", p);
- return (1);
- }
- if (p[0] == ' ' || (end[0] != ' ' && end[0] != 'n')) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Invalid numeric argumentn", progname, p);
- else
- dbp->errx(dbp, "%s: Invalid numeric argument", p);
- return (1);
- }
- if (val < min) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Less than minimum value (%ld)n",
- progname, p, min);
- else
- dbp->errx(dbp,
- "%s: Less than minimum value (%ld)", p, min);
- return (1);
- }
- if (val > max) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Greater than maximum value (%ld)n",
- progname, p, max);
- else
- dbp->errx(dbp,
- "%s: Greater than maximum value (%ld)", p, max);
- return (1);
- }
- *storep = val;
- return (0);
- }
- /*
- * __db_getulong --
- * Return an unsigned long value inside of basic parameters.
- *
- * PUBLIC: int __db_getulong
- * PUBLIC: __P((DB *, const char *, char *, u_long, u_long, u_long *));
- */
- int
- __db_getulong(dbp, progname, p, min, max, storep)
- DB *dbp;
- const char *progname;
- char *p;
- u_long min, max, *storep;
- {
- #if !defined(HAVE_STRTOUL)
- COMPQUIET(min, 0);
- return (__db_getlong(dbp, progname, p, 0, max, (long *)storep));
- #else
- u_long val;
- char *end;
- __os_set_errno(0);
- val = strtoul(p, &end, 10);
- if (val == ULONG_MAX && __os_get_errno() == ERANGE) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: %sn", progname, p, strerror(ERANGE));
- else
- dbp->err(dbp, ERANGE, "%s", p);
- return (1);
- }
- if (p[0] == ' ' || (end[0] != ' ' && end[0] != 'n')) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Invalid numeric argumentn", progname, p);
- else
- dbp->errx(dbp, "%s: Invalid numeric argument", p);
- return (1);
- }
- if (val < min) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Less than minimum value (%lu)n",
- progname, p, min);
- else
- dbp->errx(dbp,
- "%s: Less than minimum value (%lu)", p, min);
- return (1);
- }
- /*
- * We allow a 0 to substitute as a max value for ULONG_MAX because
- * 1) accepting only a 0 value is unlikely to be necessary, and 2)
- * we don't want callers to have to use ULONG_MAX explicitly, as it
- * may not exist on all platforms.
- */
- if (max != 0 && val > max) {
- if (dbp == NULL)
- fprintf(stderr,
- "%s: %s: Greater than maximum value (%lu)n",
- progname, p, max);
- else
- dbp->errx(dbp,
- "%s: Greater than maximum value (%lu)", p, max);
- return (1);
- }
- *storep = val;
- return (0);
- #endif /* !defined(HAVE_STRTOUL) */
- }