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PDP11/VAX: Use semi-unique drive serial numbers when writing BAD144 bad block info to newly created disk images

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The 32 bit drive serial number is determined by hashing the newly create filename.
This commit is contained in:
Mark Pizzolato
2013-09-09 03:39:00 -07:00
parent e18d7e86e4
commit 786cda7c1b
2 changed files with 31 additions and 2 deletions
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16
sim_disk.c
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@@ -74,6 +74,7 @@ Internal routines:
#include "sim_defs.h"
#include "sim_disk.h"
#include "sim_ether.h"
#include <ctype.h>
#include <sys/stat.h>
@@ -1404,7 +1405,8 @@ t_addr da;
int32 wds = ctx->sector_size/sizeof (uint16);
uint16 *buf;
DEVICE *dptr;
uint32 packid = (uint32)time(NULL);
char *namebuf, *c;
uint32 packid;
if ((sec < 2) || (wds < 16))
return SCPE_ARG;
@@ -1420,6 +1422,18 @@ if (!get_yn ("Overwrite last track? [N]", FALSE))
return SCPE_OK;
if ((buf = (uint16 *) malloc (wds * sizeof (uint16))) == NULL)
return SCPE_MEM;
if ((namebuf = (char *) malloc (1 + strlen (uptr->filename))) == NULL) {
free (buf);
return SCPE_MEM;
}
strcpy (namebuf, uptr->filename);
if ((c = strrchr (namebuf, '/')))
strcpy (namebuf, c+1);
if ((c = strrchr (namebuf, '\\')))
strcpy (namebuf, c+1);
if ((c = strrchr (namebuf, ']')))
strcpy (namebuf, c+1);
packid = eth_crc32(0, namebuf, strlen (namebuf));
buf[0] = (uint16)packid;
buf[1] = (uint16)(packid >> 16);
buf[2] = buf[3] = 0;