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208. [func] Added ISC_OFFSET_MAXIMUM for the maximum value

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of an isc_offset_t.
This commit is contained in:
David Lawrence 2000-05-25 03:34:34 +00:00
parent db9628e897
commit 6deb631b20
2 changed files with 11 additions and 2 deletions
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3
CHANGES
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@ -1,3 +1,6 @@
208. [func] Added ISC_OFFSET_MAXIMUM for the maximum value
of an isc_offset_t.
207. [func] The dnssec tools properly use the logging subsystem.
206. [cleanup] dst now stores the key name as a dns_name_t, not

10
lib/isc/unix/include/isc/offset.h
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@ -15,7 +15,7 @@
* SOFTWARE.
*/
/* $Id: offset.h,v 1.3 2000/04/28 22:13:15 tale Exp $ */
/* $Id: offset.h,v 1.4 2000/05/25 03:34:34 tale Exp $ */
#ifndef ISC_OFFSET_H
#define ISC_OFFSET_H 1
@ -23,9 +23,15 @@
/*
* File offsets are operating-system dependent.
*/
#include <limits.h>
#include <sys/types.h>
typedef off_t isc_offset_t;
/*
* POSIX says "Additionally, blkcnt_t and off_t are extended signed integral
* types", so the maximum value is all 1s except for the high bit.
*/
#define ISC_OFFSET_MAXIMUM (~((off_t)1 << (sizeof(off_t) * CHAR_BIT - 1)))
#endif /* ISC_OFFSET_H */