96 lines
2.0 KiB
C
96 lines
2.0 KiB
C
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* $Id$
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/diskslice.h>
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#include <sys/disklabel.h>
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#include <err.h>
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#include "libdisk.h"
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/*
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* Rule#0:
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* Chunks of type 'whole' can have max NDOSPART children.
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*/
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void
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Rule_000(struct disk *d, struct chunk *c, char *msg)
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{
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int i;
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struct chunk *c1;
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if (c->type != whole)
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return;
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for (i=0, c1=c->part; c1; c1=c1->next)
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if (c1->type != unused)
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i++;
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if (i <= NDOSPART)
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return;
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sprintf(msg+strlen(msg),
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"%d is too many children of the 'whole' chunk. Max is %d\n",
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i, NDOSPART);
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}
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/*
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* Rule#1:
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* All children of 'whole' must be track-aligned
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*/
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void
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Rule_001(struct disk *d, struct chunk *c, char *msg)
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{
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int i;
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struct chunk *c1;
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if (c->type != whole)
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return;
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for (i=0, c1=c->part; c1; c1=c1->next) {
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if (c1->type == reserved)
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continue;
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if (c1->type == unused)
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continue;
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if (!Aligned(d,c1->offset))
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sprintf(msg+strlen(msg),
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"chunk '%s' [%ld..%ld] does not start on a track boundary\n",
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c1->name,c1->offset,c1->end);
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if (!Aligned(d,c1->end+1))
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sprintf(msg+strlen(msg),
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"chunk '%s' [%ld..%ld] does not end on a track boundary\n",
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c1->name,c1->offset,c1->end);
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}
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}
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void
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Check_Chunk(struct disk *d, struct chunk *c, char *msg)
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{
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Rule_000(d,c,msg);
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Rule_001(d,c,msg);
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if (c->part)
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Check_Chunk(d,c->part,msg);
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if (c->next)
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Check_Chunk(d,c->next,msg);
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return;
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}
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char *
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CheckRules(struct disk *d)
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{
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char msg[BUFSIZ];
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*msg = '\0';
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Check_Chunk(d,d->chunks,msg);
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if (*msg)
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return strdup(msg);
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return 0;
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}
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