Move sys/boot to stand. Fix all references to new location

Sponsored by:	Netflix

1 files changed, 206 insertions, 0 deletions

diff --git a/stand/i386/libi386/devicename.c b/stand/i386/libi386/devicename.c
new file mode 100644
index 000000000000..c7705d71386f
--- /dev/null
+++ b/stand/i386/libi386/devicename.c
@@ -0,0 +1,206 @@
+/*-
+ * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stand.h>
+#include <string.h>
+#include "bootstrap.h"
+#include "disk.h"
+#include "libi386.h"
+#include "../zfs/libzfs.h"
+
+static int	i386_parsedev(struct i386_devdesc **dev, const char *devspec, const char **path);
+
+/* 
+ * Point (dev) at an allocated device specifier for the device matching the
+ * path in (devspec). If it contains an explicit device specification,
+ * use that.  If not, use the default device.
+ */
+int
+i386_getdev(void **vdev, const char *devspec, const char **path)
+{
+    struct i386_devdesc **dev = (struct i386_devdesc **)vdev;
+    int				rv;
+    
+    /*
+     * If it looks like this is just a path and no
+     * device, go with the current device.
+     */
+    if ((devspec == NULL) || 
+	(devspec[0] == '/') || 
+	(strchr(devspec, ':') == NULL)) {
+
+	if (((rv = i386_parsedev(dev, getenv("currdev"), NULL)) == 0) &&
+	    (path != NULL))
+		*path = devspec;
+	return(rv);
+    }
+    
+    /*
+     * Try to parse the device name off the beginning of the devspec
+     */
+    return(i386_parsedev(dev, devspec, path));
+}
+
+/*
+ * Point (dev) at an allocated device specifier matching the string version
+ * at the beginning of (devspec).  Return a pointer to the remaining
+ * text in (path).
+ *
+ * In all cases, the beginning of (devspec) is compared to the names
+ * of known devices in the device switch, and then any following text
+ * is parsed according to the rules applied to the device type.
+ *
+ * For disk-type devices, the syntax is:
+ *
+ * disk<unit>[s<slice>][<partition>]:
+ * 
+ */
+static int
+i386_parsedev(struct i386_devdesc **dev, const char *devspec, const char **path)
+{
+    struct i386_devdesc *idev;
+    struct devsw	*dv;
+    int			i, unit, err;
+    char		*cp;
+    const char		*np;
+
+    /* minimum length check */
+    if (strlen(devspec) < 2)
+	return(EINVAL);
+
+    /* look for a device that matches */
+    for (i = 0, dv = NULL; devsw[i] != NULL; i++) {
+	if (!strncmp(devspec, devsw[i]->dv_name, strlen(devsw[i]->dv_name))) {
+	    dv = devsw[i];
+	    break;
+	}
+    }
+    if (dv == NULL)
+	return(ENOENT);
+    idev = malloc(sizeof(struct i386_devdesc));
+    err = 0;
+    np = (devspec + strlen(dv->dv_name));
+        
+    switch(dv->dv_type) {
+    case DEVT_NONE:			/* XXX what to do here?  Do we care? */
+	break;
+
+    case DEVT_DISK:
+	err = disk_parsedev((struct disk_devdesc *)idev, np, path);
+	if (err != 0)
+	    goto fail;
+	break;
+
+    case DEVT_CD:
+    case DEVT_NET:
+	unit = 0;
+
+	if (*np && (*np != ':')) {
+	    unit = strtol(np, &cp, 0);	/* get unit number if present */
+	    if (cp == np) {
+		err = EUNIT;
+		goto fail;
+	    }
+	} else {
+		cp = (char *)np;
+	}
+	if (*cp && (*cp != ':')) {
+	    err = EINVAL;
+	    goto fail;
+	}
+
+	idev->d_unit = unit;
+	if (path != NULL)
+	    *path = (*cp == 0) ? cp : cp + 1;
+	break;
+    case DEVT_ZFS:
+	err = zfs_parsedev((struct zfs_devdesc *)idev, np, path);
+	if (err != 0)
+	    goto fail;
+	break;
+    default:
+	err = EINVAL;
+	goto fail;
+    }
+    idev->d_dev = dv;
+    idev->d_type = dv->dv_type;
+    if (dev == NULL) {
+	free(idev);
+    } else {
+	*dev = idev;
+    }
+    return(0);
+
+ fail:
+    free(idev);
+    return(err);
+}
+
+
+char *
+i386_fmtdev(void *vdev)
+{
+    struct i386_devdesc	*dev = (struct i386_devdesc *)vdev;
+    static char		buf[128];	/* XXX device length constant? */
+
+    switch(dev->d_type) {
+    case DEVT_NONE:
+	strcpy(buf, "(no device)");
+	break;
+
+    case DEVT_CD:
+    case DEVT_NET:
+	sprintf(buf, "%s%d:", dev->d_dev->dv_name, dev->d_unit);
+	break;
+
+    case DEVT_DISK:
+	return (disk_fmtdev(vdev));
+
+    case DEVT_ZFS:
+	return(zfs_fmtdev(vdev));
+    }
+    return(buf);
+}
+
+
+/*
+ * Set currdev to suit the value being supplied in (value)
+ */
+int
+i386_setcurrdev(struct env_var *ev, int flags, const void *value)
+{
+    struct i386_devdesc	*ncurr;
+    int			rv;
+
+    if ((rv = i386_parsedev(&ncurr, value, NULL)) != 0)
+	return(rv);
+    free(ncurr);
+    env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
+    return(0);
+}