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hellwig |
/*
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* dsklbl.c -- show or write a disklabel onto a NetBSD partition
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "types.h"
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#include "disklabel.h"
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/**************************************************************/
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#define SSIZE 512 /* disk sector size in bytes */
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#define BSIZE 8192 /* disk block size in bytes */
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/**************************************************************/
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void error(char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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printf("Error: ");
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vprintf(fmt, ap);
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printf("\n");
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va_end(ap);
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exit(1);
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}
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/**************************************************************/
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unsigned int read4FromEco(unsigned char *p) {
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return (unsigned int) p[0] << 24 |
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(unsigned int) p[1] << 16 |
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(unsigned int) p[2] << 8 |
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(unsigned int) p[3] << 0;
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}
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void write4ToEco(unsigned char *p, unsigned int data) {
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p[0] = data >> 24;
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p[1] = data >> 16;
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p[2] = data >> 8;
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p[3] = data >> 0;
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}
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unsigned short read2FromEco(unsigned char *p) {
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return (unsigned short) p[0] << 8 |
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(unsigned short) p[1] << 0;
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}
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void write2ToEco(unsigned char *p, unsigned short data) {
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p[0] = data >> 8;
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p[1] = data >> 0;
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}
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void conv4FromEcoToX86(unsigned char *p) {
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unsigned int data;
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data = read4FromEco(p);
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* (unsigned int *) p = data;
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}
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void conv4FromX86ToEco(unsigned char *p) {
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unsigned int data;
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data = * (unsigned int *) p;
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write4ToEco(p, data);
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}
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void conv2FromEcoToX86(unsigned char *p) {
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unsigned short data;
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data = read2FromEco(p);
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* (unsigned short *) p = data;
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}
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void conv2FromX86ToEco(unsigned char *p) {
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unsigned short data;
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data = * (unsigned short *) p;
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write2ToEco(p, data);
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}
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/**************************************************************/
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uint16_t chksum(DiskLabel *lp, int numParts) {
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uint16_t *start;
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uint16_t *end;
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uint16_t sum;
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start = (uint16_t *) lp;
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end = (uint16_t *) &lp->d_parts[numParts];
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sum = 0;
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while (start < end) {
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sum ^= *start++;
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}
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return sum;
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}
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/**************************************************************/
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void dlFromEcoToX86(DiskLabel *lp) {
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int i;
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int numParts;
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conv4FromEcoToX86((unsigned char *) &lp->d_magic);
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conv2FromEcoToX86((unsigned char *) &lp->d_type);
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conv2FromEcoToX86((unsigned char *) &lp->d_subtype);
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conv4FromEcoToX86((unsigned char *) &lp->d_secsize);
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conv4FromEcoToX86((unsigned char *) &lp->d_nsectors);
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conv4FromEcoToX86((unsigned char *) &lp->d_ntracks);
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conv4FromEcoToX86((unsigned char *) &lp->d_ncylinders);
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conv4FromEcoToX86((unsigned char *) &lp->d_secpercyl);
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conv4FromEcoToX86((unsigned char *) &lp->d_secperunit);
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conv2FromEcoToX86((unsigned char *) &lp->d_sparespertrack);
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conv2FromEcoToX86((unsigned char *) &lp->d_sparespercyl);
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conv4FromEcoToX86((unsigned char *) &lp->d_acylinders);
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conv2FromEcoToX86((unsigned char *) &lp->d_rpm);
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conv2FromEcoToX86((unsigned char *) &lp->d_interleave);
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conv2FromEcoToX86((unsigned char *) &lp->d_trackskew);
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conv2FromEcoToX86((unsigned char *) &lp->d_cylskew);
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conv4FromEcoToX86((unsigned char *) &lp->d_headswitch);
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conv4FromEcoToX86((unsigned char *) &lp->d_trkseek);
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conv4FromEcoToX86((unsigned char *) &lp->d_flags);
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for (i = 0; i < NDDATA; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_drivedata[i]);
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}
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for (i = 0; i < NSPARE; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_spare[i]);
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}
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conv4FromEcoToX86((unsigned char *) &lp->d_magic2);
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conv2FromEcoToX86((unsigned char *) &lp->d_checksum);
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conv2FromEcoToX86((unsigned char *) &lp->d_npartitions);
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numParts = lp->d_npartitions;
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if (numParts < 0 || numParts > MAXPARTS) {
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printf("Warning: number of partitions out of range!\n");
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numParts = MAXPARTS;
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}
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conv4FromEcoToX86((unsigned char *) &lp->d_bbsize);
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conv4FromEcoToX86((unsigned char *) &lp->d_sbsize);
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for (i = 0; i < MAXPARTS; i++) {
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_size);
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_offset);
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conv4FromEcoToX86((unsigned char *) &lp->d_parts[i].p_fsize);
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conv2FromEcoToX86((unsigned char *) &lp->d_parts[i].p_cpg);
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}
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/* after byte-swapping, the checksum must be calculated again */
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lp->d_checksum = 0;
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lp->d_checksum = chksum(lp, numParts);
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/* Attention: the new checksum must not be converted! */
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}
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void dlFromX86ToEco(DiskLabel *lp) {
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int i;
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int numParts;
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conv4FromX86ToEco((unsigned char *) &lp->d_magic);
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conv2FromX86ToEco((unsigned char *) &lp->d_type);
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conv2FromX86ToEco((unsigned char *) &lp->d_subtype);
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conv4FromX86ToEco((unsigned char *) &lp->d_secsize);
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conv4FromX86ToEco((unsigned char *) &lp->d_nsectors);
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conv4FromX86ToEco((unsigned char *) &lp->d_ntracks);
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conv4FromX86ToEco((unsigned char *) &lp->d_ncylinders);
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conv4FromX86ToEco((unsigned char *) &lp->d_secpercyl);
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conv4FromX86ToEco((unsigned char *) &lp->d_secperunit);
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conv2FromX86ToEco((unsigned char *) &lp->d_sparespertrack);
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conv2FromX86ToEco((unsigned char *) &lp->d_sparespercyl);
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conv4FromX86ToEco((unsigned char *) &lp->d_acylinders);
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conv2FromX86ToEco((unsigned char *) &lp->d_rpm);
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conv2FromX86ToEco((unsigned char *) &lp->d_interleave);
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conv2FromX86ToEco((unsigned char *) &lp->d_trackskew);
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conv2FromX86ToEco((unsigned char *) &lp->d_cylskew);
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conv4FromX86ToEco((unsigned char *) &lp->d_headswitch);
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conv4FromX86ToEco((unsigned char *) &lp->d_trkseek);
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conv4FromX86ToEco((unsigned char *) &lp->d_flags);
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for (i = 0; i < NDDATA; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_drivedata[i]);
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}
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for (i = 0; i < NSPARE; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_spare[i]);
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}
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conv4FromX86ToEco((unsigned char *) &lp->d_magic2);
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conv2FromX86ToEco((unsigned char *) &lp->d_checksum);
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numParts = lp->d_npartitions;
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if (numParts < 0 || numParts > MAXPARTS) {
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printf("Warning: number of partitions out of range!\n");
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numParts = MAXPARTS;
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}
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conv2FromX86ToEco((unsigned char *) &lp->d_npartitions);
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conv4FromX86ToEco((unsigned char *) &lp->d_bbsize);
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conv4FromX86ToEco((unsigned char *) &lp->d_sbsize);
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for (i = 0; i < MAXPARTS; i++) {
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_size);
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_offset);
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conv4FromX86ToEco((unsigned char *) &lp->d_parts[i].p_fsize);
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conv2FromX86ToEco((unsigned char *) &lp->d_parts[i].p_cpg);
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}
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/* after byte-swapping, the checksum must be calculated again */
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lp->d_checksum = 0;
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lp->d_checksum = chksum(lp, numParts);
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/* Attention: the new checksum must not be converted! */
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}
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/**************************************************************/
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FILE *diskFile;
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unsigned long sliceStart;
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unsigned long sliceSize;
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void readSector(unsigned int sno, unsigned char *buf) {
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int n;
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if (sno >= sliceSize) {
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error("illegal sector number %u in readSector()", sno);
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}
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fseek(diskFile, (sliceStart + sno) * SSIZE, SEEK_SET);
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n = fread(buf, 1, SSIZE, diskFile);
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if (n != SSIZE) {
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error("read error on sector %u", sno);
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}
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}
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void writeSector(unsigned int sno, unsigned char *buf) {
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int n;
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if (sno >= sliceSize) {
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error("illegal sector number %u in writeSector()", sno);
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}
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fseek(diskFile, (sliceStart + sno) * SSIZE, SEEK_SET);
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n = fwrite(buf, 1, SSIZE, diskFile);
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if (n != SSIZE) {
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error("write error on sector %u", sno);
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}
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}
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/**************************************************************/
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void showDiskLabel(DiskLabel *lp) {
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int i;
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int c;
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int numParts;
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printf("magic number : 0x%08X\n", lp->d_magic);
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if (lp->d_magic != DSKMAGIC) {
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printf("Warning: wrong magic number!\n");
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}
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printf("type : 0x%04X\n", lp->d_type);
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printf("subtype : 0x%04X\n", lp->d_subtype);
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printf("typename : '");
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for (i = 0; i < NTYPENAME; i++) {
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c = lp->d_typename[i];
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if (c == 0) {
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break;
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}
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if (c >= 0x20 && c < 0x7F) {
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printf("%c", c);
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} else {
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printf(".");
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}
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}
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printf("'\n");
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printf("packname : '");
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for (i = 0; i < NPACKNAME; i++) {
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c = lp->d_packname[i];
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if (c == 0) {
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break;
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}
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if (c >= 0x20 && c < 0x7F) {
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printf("%c", c);
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} else {
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printf(".");
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}
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}
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printf("'\n");
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printf("secsize : 0x%08X\n", lp->d_secsize);
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printf("nsectors : 0x%08X\n", lp->d_nsectors);
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printf("ntracks : 0x%08X\n", lp->d_ntracks);
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printf("ncylinders : 0x%08X\n", lp->d_ncylinders);
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printf("secpercyl : 0x%08X\n", lp->d_secpercyl);
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printf("secperunit : 0x%08X\n", lp->d_secperunit);
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printf("sparespertrack : 0x%04X\n", lp->d_sparespertrack);
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printf("sparespercyl : 0x%04X\n", lp->d_sparespercyl);
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printf("acylinders : 0x%08X\n", lp->d_acylinders);
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printf("rpm : 0x%04X\n", lp->d_rpm);
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311 |
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printf("interleave : 0x%04X\n", lp->d_interleave);
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printf("trackskew : 0x%04X\n", lp->d_trackskew);
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printf("cylskew : 0x%04X\n", lp->d_cylskew);
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printf("headswitch : 0x%08X\n", lp->d_headswitch);
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printf("trkseek : 0x%08X\n", lp->d_trkseek);
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printf("flags : 0x%08X\n", lp->d_flags);
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printf("magic2 : 0x%08X\n", lp->d_magic2);
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if (lp->d_magic2 != DSKMAGIC) {
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319 |
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printf("Warning: wrong magic number!\n");
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}
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printf("checksum : 0x%04X\n", lp->d_checksum);
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printf("bbsize : 0x%08X\n", lp->d_bbsize);
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printf("sbsize : 0x%08X\n", lp->d_sbsize);
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printf("npartitions : 0x%04X\n", lp->d_npartitions);
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numParts = lp->d_npartitions;
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if (numParts < 0 || numParts > MAXPARTS) {
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printf("Warning: number of partitions out of range!\n");
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328 |
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numParts = MAXPARTS;
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329 |
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}
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330 |
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for (i = 0; i < numParts; i++) {
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331 |
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if (lp->d_parts[i].p_size == 0) {
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332 |
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continue;
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333 |
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}
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334 |
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printf(" partition %c:\n", 'a' + i);
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335 |
|
|
printf(" size : 0x%08X\n", lp->d_parts[i].p_size);
|
336 |
|
|
printf(" offset : 0x%08X\n", lp->d_parts[i].p_offset);
|
337 |
|
|
printf(" fsize : 0x%08X\n", lp->d_parts[i].p_fsize);
|
338 |
|
|
printf(" fstype : 0x%02X\n", lp->d_parts[i].p_fstype);
|
339 |
|
|
printf(" frag : 0x%02X\n", lp->d_parts[i].p_frag);
|
340 |
|
|
printf(" cpg : 0x%04X\n", lp->d_parts[i].p_cpg);
|
341 |
|
|
}
|
342 |
|
|
}
|
343 |
|
|
|
344 |
|
|
|
345 |
|
|
/**************************************************************/
|
346 |
|
|
|
347 |
|
|
|
348 |
|
|
void initDiskLabel(DiskLabel *lp) {
|
349 |
|
|
int i;
|
350 |
|
|
|
351 |
|
|
lp->d_magic = 0;
|
352 |
|
|
lp->d_type = 0;
|
353 |
|
|
lp->d_subtype = 0;
|
354 |
|
|
for (i = 0; i < NTYPENAME; i++) {
|
355 |
|
|
lp->d_typename[i] = 0;
|
356 |
|
|
}
|
357 |
|
|
for (i = 0; i < NPACKNAME; i++) {
|
358 |
|
|
lp->d_packname[i] = 0;
|
359 |
|
|
}
|
360 |
|
|
lp->d_secsize = 0;
|
361 |
|
|
lp->d_nsectors = 0;
|
362 |
|
|
lp->d_ntracks = 0;
|
363 |
|
|
lp->d_ncylinders = 0;
|
364 |
|
|
lp->d_secpercyl = 0;
|
365 |
|
|
lp->d_secperunit = 0;
|
366 |
|
|
lp->d_sparespertrack = 0;
|
367 |
|
|
lp->d_sparespercyl = 0;
|
368 |
|
|
lp->d_acylinders = 0;
|
369 |
|
|
lp->d_rpm = 0;
|
370 |
|
|
lp->d_interleave = 0;
|
371 |
|
|
lp->d_trackskew = 0;
|
372 |
|
|
lp->d_cylskew = 0;
|
373 |
|
|
lp->d_headswitch = 0;
|
374 |
|
|
lp->d_trkseek = 0;
|
375 |
|
|
lp->d_flags = 0;
|
376 |
|
|
for (i = 0; i < NDDATA; i++) {
|
377 |
|
|
lp->d_drivedata[i] = 0;
|
378 |
|
|
}
|
379 |
|
|
for (i = 0; i < NSPARE; i++) {
|
380 |
|
|
lp->d_spare[i] = 0;
|
381 |
|
|
}
|
382 |
|
|
lp->d_magic2 = 0;
|
383 |
|
|
lp->d_checksum = 0;
|
384 |
|
|
lp->d_npartitions = 0;
|
385 |
|
|
lp->d_bbsize = 0;
|
386 |
|
|
lp->d_sbsize = 0;
|
387 |
|
|
for (i = 0; i < MAXPARTS; i++) {
|
388 |
|
|
lp->d_parts[i].p_size = 0;
|
389 |
|
|
lp->d_parts[i].p_offset = 0;
|
390 |
|
|
lp->d_parts[i].p_fsize = 0;
|
391 |
|
|
lp->d_parts[i].p_fstype = 0;
|
392 |
|
|
lp->d_parts[i].p_frag = 0;
|
393 |
|
|
lp->d_parts[i].p_cpg = 0;
|
394 |
|
|
}
|
395 |
|
|
for (i = 0; i < PADSIZE; i++) {
|
396 |
|
|
lp->d_pad[i] = 0;
|
397 |
|
|
}
|
398 |
|
|
}
|
399 |
|
|
|
400 |
|
|
|
401 |
|
|
void fillDiskLabelDefault1(DiskLabel *lp) {
|
402 |
|
|
/* the default disklabel for a non-partitioned disk */
|
403 |
|
|
lp->d_magic = DSKMAGIC;
|
404 |
|
|
strcpy(lp->d_typename, "ECO32 SD-100M");
|
405 |
|
|
lp->d_secsize = 512;
|
406 |
|
|
lp->d_nsectors = 128;
|
407 |
|
|
lp->d_ntracks = 16;
|
408 |
|
|
lp->d_ncylinders = 100;
|
409 |
|
|
lp->d_secpercyl = 2048;
|
410 |
|
|
lp->d_secperunit = 204800;
|
411 |
|
|
lp->d_sparespertrack = 0;
|
412 |
|
|
lp->d_sparespercyl = 0;
|
413 |
|
|
lp->d_acylinders = 0;
|
414 |
|
|
lp->d_rpm = 3600;
|
415 |
|
|
lp->d_interleave = 1;
|
416 |
|
|
lp->d_trackskew = 0;
|
417 |
|
|
lp->d_cylskew = 0;
|
418 |
|
|
lp->d_headswitch = 0;
|
419 |
|
|
lp->d_trkseek = 0;
|
420 |
|
|
lp->d_flags = 0;
|
421 |
|
|
lp->d_magic2 = DSKMAGIC;
|
422 |
|
|
lp->d_checksum = 0;
|
423 |
|
|
lp->d_npartitions = 16;
|
424 |
|
|
lp->d_bbsize = 8192;
|
425 |
|
|
lp->d_sbsize = 8192;
|
426 |
|
|
/*-------------------------------*/
|
427 |
|
|
lp->d_parts[0].p_size = 172032;
|
428 |
|
|
lp->d_parts[0].p_offset = 0;
|
429 |
|
|
lp->d_parts[0].p_fsize = 1024;
|
430 |
|
|
lp->d_parts[0].p_fstype = 7;
|
431 |
|
|
lp->d_parts[0].p_frag = 8;
|
432 |
|
|
/*-------------------------------*/
|
433 |
|
|
lp->d_parts[1].p_size = 32768;
|
434 |
|
|
lp->d_parts[1].p_offset = 172032;
|
435 |
|
|
lp->d_parts[1].p_fsize = 0;
|
436 |
|
|
lp->d_parts[1].p_fstype = 1;
|
437 |
|
|
lp->d_parts[1].p_frag = 0;
|
438 |
|
|
/*-------------------------------*/
|
439 |
|
|
lp->d_parts[2].p_size = 204800;
|
440 |
|
|
lp->d_parts[2].p_offset = 0;
|
441 |
|
|
lp->d_parts[2].p_fsize = 0;
|
442 |
|
|
lp->d_parts[2].p_fstype = 0;
|
443 |
|
|
lp->d_parts[2].p_frag = 0;
|
444 |
|
|
/*-------------------------------*/
|
445 |
|
|
lp->d_checksum = chksum(lp, lp->d_npartitions);
|
446 |
|
|
}
|
447 |
|
|
|
448 |
|
|
|
449 |
|
|
void fillDiskLabelDefault2(DiskLabel *lp) {
|
450 |
|
|
/* the default disklabel for a partitioned disk */
|
451 |
|
|
lp->d_magic = DSKMAGIC;
|
452 |
|
|
strcpy(lp->d_typename, "ECO32 SD-100M");
|
453 |
|
|
lp->d_secsize = 512;
|
454 |
|
|
lp->d_nsectors = 128;
|
455 |
|
|
lp->d_ntracks = 16;
|
456 |
|
|
lp->d_ncylinders = 100;
|
457 |
|
|
lp->d_secpercyl = 2048;
|
458 |
|
|
lp->d_secperunit = 204800;
|
459 |
|
|
lp->d_sparespertrack = 0;
|
460 |
|
|
lp->d_sparespercyl = 0;
|
461 |
|
|
lp->d_acylinders = 0;
|
462 |
|
|
lp->d_rpm = 3600;
|
463 |
|
|
lp->d_interleave = 1;
|
464 |
|
|
lp->d_trackskew = 0;
|
465 |
|
|
lp->d_cylskew = 0;
|
466 |
|
|
lp->d_headswitch = 0;
|
467 |
|
|
lp->d_trkseek = 0;
|
468 |
|
|
lp->d_flags = 0;
|
469 |
|
|
lp->d_magic2 = DSKMAGIC;
|
470 |
|
|
lp->d_checksum = 0;
|
471 |
|
|
lp->d_npartitions = 16;
|
472 |
|
|
lp->d_bbsize = 8192;
|
473 |
|
|
lp->d_sbsize = 8192;
|
474 |
|
|
/*-------------------------------*/
|
475 |
|
|
lp->d_parts[0].p_size = 106496;
|
476 |
|
|
lp->d_parts[0].p_offset = 81920;
|
477 |
|
|
lp->d_parts[0].p_fsize = 1024;
|
478 |
|
|
lp->d_parts[0].p_fstype = 7;
|
479 |
|
|
lp->d_parts[0].p_frag = 8;
|
480 |
|
|
/*-------------------------------*/
|
481 |
|
|
lp->d_parts[1].p_size = 16384;
|
482 |
|
|
lp->d_parts[1].p_offset = 188416;
|
483 |
|
|
lp->d_parts[1].p_fsize = 0;
|
484 |
|
|
lp->d_parts[1].p_fstype = 1;
|
485 |
|
|
lp->d_parts[1].p_frag = 0;
|
486 |
|
|
/*-------------------------------*/
|
487 |
|
|
lp->d_parts[2].p_size = 122880;
|
488 |
|
|
lp->d_parts[2].p_offset = 81920;
|
489 |
|
|
lp->d_parts[2].p_fsize = 0;
|
490 |
|
|
lp->d_parts[2].p_fstype = 0;
|
491 |
|
|
lp->d_parts[2].p_frag = 0;
|
492 |
|
|
/*-------------------------------*/
|
493 |
|
|
lp->d_parts[3].p_size = 204800;
|
494 |
|
|
lp->d_parts[3].p_offset = 0;
|
495 |
|
|
lp->d_parts[3].p_fsize = 0;
|
496 |
|
|
lp->d_parts[3].p_fstype = 0;
|
497 |
|
|
lp->d_parts[3].p_frag = 0;
|
498 |
|
|
/*-------------------------------*/
|
499 |
|
|
lp->d_checksum = chksum(lp, lp->d_npartitions);
|
500 |
|
|
}
|
501 |
|
|
|
502 |
|
|
|
503 |
|
|
void fillDiskLabelFromFile(DiskLabel *lp, char *fileName) {
|
504 |
|
|
error("configuration file not supported yet");
|
505 |
|
|
}
|
506 |
|
|
|
507 |
|
|
|
508 |
|
|
/**************************************************************/
|
509 |
|
|
|
510 |
|
|
|
511 |
|
|
int checkEndian(DiskLabel *lp) {
|
512 |
|
|
int endian;
|
513 |
|
|
uint32_t magic;
|
514 |
|
|
uint16_t numParts;
|
515 |
|
|
uint16_t sum;
|
516 |
|
|
|
517 |
|
|
magic = lp->d_magic;
|
518 |
|
|
if (magic != lp->d_magic2) {
|
519 |
|
|
printf("Warning: magic numbers differ!\n");
|
520 |
|
|
return -1;
|
521 |
|
|
}
|
522 |
|
|
if (magic == DSKMAGIC) {
|
523 |
|
|
/* little endian */
|
524 |
|
|
endian = 1;
|
525 |
|
|
} else {
|
526 |
|
|
/* assume big endian */
|
527 |
|
|
endian = 0;
|
528 |
|
|
/* and check */
|
529 |
|
|
conv4FromEcoToX86((unsigned char *) &magic);
|
530 |
|
|
if (magic != DSKMAGIC) {
|
531 |
|
|
/* neither little endian nor big endian */
|
532 |
|
|
printf("Warning: wrong magic number!\n");
|
533 |
|
|
return -2;
|
534 |
|
|
}
|
535 |
|
|
}
|
536 |
|
|
numParts = lp->d_npartitions;
|
537 |
|
|
if (endian == 0) {
|
538 |
|
|
conv2FromEcoToX86((unsigned char *) &numParts);
|
539 |
|
|
}
|
540 |
|
|
sum = chksum(lp, (int) numParts);
|
541 |
|
|
if (sum != 0) {
|
542 |
|
|
printf("Warning: wrong checksum!\n");
|
543 |
|
|
return -3;
|
544 |
|
|
}
|
545 |
|
|
return endian;
|
546 |
|
|
}
|
547 |
|
|
|
548 |
|
|
|
549 |
|
|
/**************************************************************/
|
550 |
|
|
|
551 |
|
|
|
552 |
|
|
void usage(char *myself) {
|
553 |
|
|
printf("Usage:\n");
|
554 |
|
|
printf(" %s -c <disk> <partition or '*'>\n", myself);
|
555 |
|
|
printf(" %s -t <disk> <partition or '*'>\n", myself);
|
556 |
|
|
printf(" %s -rb <disk> <partition or '*'>\n", myself);
|
557 |
|
|
printf(" %s -rl <disk> <partition or '*'>\n", myself);
|
558 |
|
|
printf(" %s -wb <disk> <partition or '*'> [<config file>]\n", myself);
|
559 |
|
|
printf(" %s -wl <disk> <partition or '*'> [<config file>]\n", myself);
|
560 |
|
|
printf("c: check, t: toggle endianness\n");
|
561 |
|
|
printf("r: read, w: write disklabel\n");
|
562 |
|
|
printf("b: big, l: little endian\n");
|
563 |
|
|
}
|
564 |
|
|
|
565 |
|
|
|
566 |
|
|
int main(int argc, char *argv[]) {
|
567 |
|
|
int optionCheck;
|
568 |
|
|
int optionToggle;
|
569 |
|
|
int optionRead;
|
570 |
|
|
int optionBig;
|
571 |
|
|
char *diskName;
|
572 |
|
|
int part;
|
573 |
|
|
char *endptr;
|
574 |
|
|
unsigned char partTable[SSIZE];
|
575 |
|
|
unsigned char *ptptr;
|
576 |
|
|
unsigned long partType;
|
577 |
|
|
DiskLabel dl;
|
578 |
|
|
int endian;
|
579 |
|
|
|
580 |
|
|
if (argc != 4 && argc != 5) {
|
581 |
|
|
usage(argv[0]);
|
582 |
|
|
exit(1);
|
583 |
|
|
}
|
584 |
|
|
if (strcmp(argv[1], "-c") != 0 &&
|
585 |
|
|
strcmp(argv[1], "-t") != 0 &&
|
586 |
|
|
strcmp(argv[1], "-rb") != 0 &&
|
587 |
|
|
strcmp(argv[1], "-rl") != 0 &&
|
588 |
|
|
strcmp(argv[1], "-wb") != 0 &&
|
589 |
|
|
strcmp(argv[1], "-wl") != 0) {
|
590 |
|
|
usage(argv[0]);
|
591 |
|
|
exit(1);
|
592 |
|
|
}
|
593 |
|
|
if (strcmp(argv[1], "-c") == 0) {
|
594 |
|
|
optionCheck = 1;
|
595 |
|
|
optionToggle = 0;
|
596 |
|
|
optionRead = 0;
|
597 |
|
|
optionBig = 0;
|
598 |
|
|
} else
|
599 |
|
|
if (strcmp(argv[1], "-t") == 0) {
|
600 |
|
|
optionCheck = 1;
|
601 |
|
|
optionToggle = 1;
|
602 |
|
|
optionRead = 0;
|
603 |
|
|
optionBig = 0;
|
604 |
|
|
} else {
|
605 |
|
|
optionCheck = 0;
|
606 |
|
|
optionToggle = 0;
|
607 |
|
|
optionRead = (argv[1][1] == 'r');
|
608 |
|
|
optionBig = (argv[1][2] == 'b');
|
609 |
|
|
}
|
610 |
|
|
diskName = argv[2];
|
611 |
|
|
diskFile = fopen(diskName, "r+b");
|
612 |
|
|
if (diskFile == NULL) {
|
613 |
|
|
error("cannot open disk image '%s'", diskName);
|
614 |
|
|
}
|
615 |
|
|
if (strcmp(argv[3], "*") == 0) {
|
616 |
|
|
/* whole disk contains one single slice */
|
617 |
|
|
sliceStart = 0;
|
618 |
|
|
fseek(diskFile, 0, SEEK_END);
|
619 |
|
|
sliceSize = ftell(diskFile) / SSIZE;
|
620 |
|
|
} else {
|
621 |
|
|
/* argv[3] is partition number of NetBSD slice */
|
622 |
|
|
part = strtoul(argv[3], &endptr, 10);
|
623 |
|
|
if (*endptr != '\0' || part < 0 || part > 15) {
|
624 |
|
|
error("illegal partition number '%s'", argv[3]);
|
625 |
|
|
}
|
626 |
|
|
fseek(diskFile, 1 * SSIZE, SEEK_SET);
|
627 |
|
|
if (fread(partTable, 1, SSIZE, diskFile) != SSIZE) {
|
628 |
|
|
error("cannot read partition table of disk '%s'", diskName);
|
629 |
|
|
}
|
630 |
|
|
ptptr = partTable + part * 32;
|
631 |
|
|
partType = read4FromEco(ptptr + 0);
|
632 |
|
|
if ((partType & 0x7FFFFFFF) != 0x000000A9) {
|
633 |
|
|
error("partition %d of disk '%s' is not a NetBSD slice",
|
634 |
|
|
part, diskName);
|
635 |
|
|
}
|
636 |
|
|
sliceStart = read4FromEco(ptptr + 4);
|
637 |
|
|
sliceSize = read4FromEco(ptptr + 8);
|
638 |
|
|
}
|
639 |
|
|
printf("Slice size is %lu (0x%lX) sectors of %d bytes each.\n",
|
640 |
|
|
sliceSize, sliceSize, SSIZE);
|
641 |
|
|
if (optionCheck) {
|
642 |
|
|
/* check endianness */
|
643 |
|
|
readSector(1, (unsigned char *) &dl);
|
644 |
|
|
endian = checkEndian(&dl);
|
645 |
|
|
if (endian < 0) {
|
646 |
|
|
error("the endiannes of the disklabel could not be determined");
|
647 |
|
|
}
|
648 |
|
|
printf("The disklabel appears to be %s-endian.\n",
|
649 |
|
|
endian == 0 ? "big" : "little");
|
650 |
|
|
if (optionToggle) {
|
651 |
|
|
/* toggle endianness */
|
652 |
|
|
if (endian == 0) {
|
653 |
|
|
/* big -> little */
|
654 |
|
|
dlFromEcoToX86(&dl);
|
655 |
|
|
} else {
|
656 |
|
|
/* little -> big */
|
657 |
|
|
dlFromX86ToEco(&dl);
|
658 |
|
|
}
|
659 |
|
|
endian = checkEndian(&dl);
|
660 |
|
|
if (endian < 0) {
|
661 |
|
|
error("this should never happen");
|
662 |
|
|
}
|
663 |
|
|
printf("The disklabel has been converted to %s-endian.\n",
|
664 |
|
|
endian == 0 ? "big" : "little");
|
665 |
|
|
writeSector(1, (unsigned char *) &dl);
|
666 |
|
|
}
|
667 |
|
|
} else
|
668 |
|
|
if (optionRead) {
|
669 |
|
|
/* read and show disklabel */
|
670 |
|
|
readSector(1, (unsigned char *) &dl);
|
671 |
|
|
if (optionBig) {
|
672 |
|
|
dlFromEcoToX86(&dl);
|
673 |
|
|
}
|
674 |
|
|
showDiskLabel(&dl);
|
675 |
|
|
} else {
|
676 |
|
|
/* write disklabel */
|
677 |
|
|
initDiskLabel(&dl);
|
678 |
|
|
if (argc == 4) {
|
679 |
|
|
fillDiskLabelDefault2(&dl);
|
680 |
|
|
} else {
|
681 |
|
|
fillDiskLabelFromFile(&dl, argv[4]);
|
682 |
|
|
}
|
683 |
|
|
if (optionBig) {
|
684 |
|
|
dlFromX86ToEco(&dl);
|
685 |
|
|
}
|
686 |
|
|
writeSector(1, (unsigned char *) &dl);
|
687 |
|
|
}
|
688 |
|
|
fclose(diskFile);
|
689 |
|
|
return 0;
|
690 |
|
|
}
|