Aren/NetBSD
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default to something reasonable (like the interactive mode does) instead

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of 0 when -1 is specified for the start or size.
This commit is contained in:
christos 2014-04-01 19:08:48 +00:00
parent 0345241f46
commit 6449a2097b
1 changed files with 11 additions and 5 deletions
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16
sbin/fdisk/fdisk.c
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@ -1,4 +1,4 @@
/* $NetBSD: fdisk.c,v 1.147 2014/03/30 22:18:13 christos Exp $ */
/* $NetBSD: fdisk.c,v 1.148 2014/04/01 19:08:48 christos Exp $ */
/*
* Mach Operating System
@ -39,7 +39,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: fdisk.c,v 1.147 2014/03/30 22:18:13 christos Exp $");
__RCSID("$NetBSD: fdisk.c,v 1.148 2014/04/01 19:08:48 christos Exp $");
#endif /* not lint */
#define MBRPTYPENAMES
@ -1817,7 +1817,7 @@ check_overlap(int part, int sysid, daddr_t start, daddr_t size, int fix)
/* This is just a convention, not a requirement */
return "Track zero is reserved for the BIOS";
#endif
if (start + size > disksectors)
if (start + size > disksectors)
return "Partition exceeds size of disk";
for (p = 0; p < MBR_PART_COUNT; p++) {
if (p == part || mboot.mbr_parts[p].mbrp_type == 0)
@ -2036,10 +2036,16 @@ change_part(int extended, int part, int sysid, daddr_t start, daddr_t size,
} else {
if (sysid == -1)
sysid = partp->mbrp_type;
if (start == (daddr_t)0xffffffff)
if (start == (daddr_t)0xffffffff) {
start = offset + le32toh(partp->mbrp_start);
if (size == (daddr_t)0xffffffff)
if (start == 0)
start = offset = ptn_0_offset;
}
if (size == (daddr_t)0xffffffff) {
size = le32toh(partp->mbrp_size);
if (size == 0)
size = disksectors - start;
}
}
}