Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Also find swap partitions in a (possibly embedded in AHDI) NetBSD label on 

the disk.
This commit is contained in:
leo 2002-03-22 21:29:23 +00:00
parent 7b23fbe29a
commit 7c8d16d63f
1 changed files with 84 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

105
sys/arch/atari/stand/tostools/file2swp/file2swp.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: file2swp.c,v 1.1.1.1 2002/02/27 20:21:16 leo Exp $ */
/* $NetBSD: file2swp.c,v 1.2 2002/03/22 21:29:23 leo Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -41,15 +41,18 @@
#include "libtos.h"
#include "diskio.h"
#include "ahdilbl.h"
#include "disklbl.h"
#include "cread.h"
char *Infile = "minifs.gz";
const char version[] = "$Revision: 1.1.1.1 $";
const char version[] = "$Revision: 1.2 $";
extern const char *program_name;
int main PROTO((int, char **));
static void usage PROTO((void)) NORETURN;
static int check_bsdlabel PROTO((disk_t *,u_int32_t,u_int32_t *,u_int32_t *));
static int readdisklabel PROTO((disk_t *, u_int32_t *, u_int32_t *));
static void usage PROTO((void)) NORETURN;
static void
usage()
@ -82,9 +85,9 @@ main(argc, argv)
extern char *optarg;
disk_t *dd;
ptable_t pt;
int rv, c, i, fd;
u_int32_t currblk;
u_int32_t start, end;
char buf[AHDI_BSIZE];
i = rv = 0;
@ -119,37 +122,25 @@ main(argc, argv)
/* NOT REACHED */
}
dd = disk_open(*argv);
pt.nparts = 0;
pt.parts = NULL;
if (!ahdi_getparts(dd, &pt, AHDI_BBLOCK, AHDI_BBLOCK)) {
for (i = 0; i < pt.nparts; i++) {
if (!strncmp(pt.parts[i].id, "SWP", 3))
break;
}
if (i == pt.nparts) {
eprintf("No swap ('SWP') partition found!\n");
xexit(1);
}
}
else xexit(1);
if (readdisklabel(dd, &start, &end) != 0)
xexit(1);
if ((fd = open(Infile, O_RDONLY)) < 0) {
eprintf("Unable to open <%s>\n", Infile);
xexit(1);
}
eprintf("Found Swap ('SWP') partition start: %d, end: %d.\n",
pt.parts[i].start, pt.parts[i].end);
switch(key_wait("Are you sure (y/n)? ")) {
case 'y':
case 'Y':
currblk = pt.parts[i].start;
currblk = start;
while(c = read(fd, buf, sizeof(buf)) > 0) {
if (disk_write(dd, currblk, 1, buf) < 0) {
eprintf("Error writing to swap partition\n");
xexit(1);
}
if (++currblk >= pt.parts[i].end) {
if (++currblk >= end) {
eprintf("Error: filesize exceeds swap "
"partition size\n");
xexit(1);
@ -166,3 +157,75 @@ main(argc, argv)
rv = EXIT_FAILURE;
return(rv);
}
static int
check_bsdlabel(dd, offset, start, end)
disk_t *dd;
u_int32_t offset, *start, *end;
{
struct disklabel dl;
int err;
err = bsd_getlabel(dd, &dl, offset);
if (err < 0) {
eprintf("Device I/O error (hardware problem?)\n\n");
return (-1);
}
if (!err) {
if (dl.d_partitions[1].p_size > 0) {
*start = dl.d_partitions[1].p_offset;
*end = *start + dl.d_partitions[1].p_size-1;
eprintf("NetBSD/Atari format%s, Swap partition start:%d, end:%d\n",
offset != 0 ? " (embedded)" : "", *start, *end);
return (0);
}
eprintf("NetBSD/Atari format: no swap defined\n");
}
return 1;
}
static int
readdisklabel(dd, start, end)
disk_t *dd;
u_int32_t *start, *end;
{
ptable_t pt;
int err, i;
err = check_bsdlabel(dd, LABELSECTOR, start, end);
if (err != 1)
return (err);
memset(&pt, 0, sizeof(pt));
err = ahdi_getparts(dd, &pt, AHDI_BBLOCK, AHDI_BBLOCK);
if (err < 0) {
eprintf("Device I/O error (hardware problem?)\n\n");
return (-1);
}
if (!err) {
/*
* Check for hidden BSD labels
*/
for (i = 0; i < pt.nparts; i++) {
if (!strncmp(pt.parts[i].id, "NBD", 3)) {
err = check_bsdlabel(dd, pt.parts[i].start, start, end);
if (err != 1)
return (err);
}
}
for (i = 0; i < pt.nparts; i++) {
if (!strncmp(pt.parts[i].id, "SWP", 3))
break;
}
if (i < pt.nparts) {
*start = pt.parts[i].start;
*end = pt.parts[i].end;
eprintf("AHDI format, SWP partition: start:%d,end: %d\n",
*start, *end);
return (0);
}
eprintf("AHDI format, no swap ('SWP') partition found!\n");
}
eprintf("Unknown label format.\n\n");
return(-1);
}