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Add and enable COMPAT_DKWEDGE which let's us autoconfigure wedges and boot 

with a non-wedge aware fstab.
This commit is contained in:
christos 2012-04-07 17:10:02 +00:00
parent fcef2dcd59
commit f3cbb49f84
1 changed files with 30 additions and 4 deletions
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34
lib/libutil/getfsspecname.c
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@ -1,4 +1,4 @@
/* $NetBSD: getfsspecname.c,v 1.1 2012/04/07 04:04:45 christos Exp $ */
/* $NetBSD: getfsspecname.c,v 1.2 2012/04/07 17:10:02 christos Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@ -29,7 +29,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: getfsspecname.c,v 1.1 2012/04/07 04:04:45 christos Exp $");
__RCSID("$NetBSD: getfsspecname.c,v 1.2 2012/04/07 17:10:02 christos Exp $");
#include <sys/types.h>
#include <sys/sysctl.h>
@ -45,6 +45,8 @@ __RCSID("$NetBSD: getfsspecname.c,v 1.1 2012/04/07 04:04:45 christos Exp $");
#include <unistd.h>
#include <util.h>
#define COMPAT_DKWEDGE /* To be removed */
const char *
getfsspecname(char *buf, size_t bufsiz, const char *name)
{
@ -58,11 +60,35 @@ getfsspecname(char *buf, size_t bufsiz, const char *name)
drives = NULL;
vname = NULL;
if (strncasecmp(name, "NAME=", 5) != 0) {
#ifdef COMPAT_DKWEDGE
/*
* We try to open the disk name, and if we fail with EBUSY
* we use the name as the label to find the wedge.
*/
char rbuf[MAXPATHLEN];
if (name[0] == '/') {
if (getdiskrawname(rbuf, sizeof(rbuf), name) == NULL) {
savee = errno;
strlcpy(buf, "makeraw failed", bufsiz);
goto out;
}
if ((fd = open(rbuf, O_RDONLY)) == -1) {
if (errno == EBUSY) {
name = strrchr(name, '/') + 1;
goto search;
}
} else
close(fd);
}
#endif
strlcpy(buf, name, bufsiz);
return buf;
}
} else
name += 5;
#ifdef COMPAT_DKWEDGE
search:
#endif
vname = malloc(strlen(name) * 4 + 1);
if (vname == NULL) {
savee = errno;