/*
* gettty returns the user's tty number or ? if none.
*/
static char *
gettty(psinfo_t *psinfo)
{
extern char *_ttyname_dev(dev_t, char *, size_t);
static zoneid_t zid = -1;
char devname[TTYNAME_MAX];
char *retval;
if (zid == -1)
zid = getzoneid();
if (psinfo->pr_ttydev == PRNODEV || psinfo->pr_zoneid != zid)
return ("?");
if ((retval = devlookup(psinfo->pr_ttydev)) != NULL)
return (retval);
retval = _ttyname_dev(psinfo->pr_ttydev, devname, sizeof (devname));
return (devadd(retval, psinfo->pr_ttydev));
}
/*
* Parse a device spec in one of two forms.
*
* dev(adapt, ctlr, unit, part)file
* [A-Za-z]*[0-9]*[A-Za-z]:file
* dev unit part
*/
int
devparse(const char *fname, int *dev, int *adapt, int *ctlr, int *unit,
int *part, char **file)
{
int i;
char *s, *args[4];
/* get device name and make lower case */
for (s = (char *)fname; *s && *s != '/' && *s != ':' && *s != '('; s++)
if (isupper(*s)) *s = tolower(*s);
/* first form */
if (*s == '(') {
/* lookup device and get index */
if ((*dev = devlookup(fname, s - fname)) < 0)
goto baddev;
/* tokenize device ident */
args[0] = ++s;
for (args[0] = s, i = 1; *s && *s != ')'; s++) {
if (*s == ',')
args[i++] = ++s;
}
switch(i) {
case 4:
*adapt = atoi(args[0]);
*ctlr = atoi(args[1]);
*unit = atoi(args[2]);
*part = atoi(args[3]);
break;
case 3:
*ctlr = atoi(args[0]);
*unit = atoi(args[1]);
*part = atoi(args[2]);
break;
case 2:
*unit = atoi(args[0]);
*part = atoi(args[1]);
break;
case 1:
*part = atoi(args[0]);
break;
case 0:
break;
}
*file = ++s;
}
/* second form */
else if (*s == ':') {
int temp;
/* isolate device */
for (s = (char *)fname; *s != ':' && !isdigit(*s); s++);
/* lookup device and get index */
if ((*dev = devlookup(fname, s - fname)) < 0)
goto baddev;
/* isolate unit */
if ((temp = atoi(s)) > 255)
goto bad;
*adapt = temp / 8;
*ctlr = temp % 8;
for (; isdigit(*s); s++);
/* translate partition */
if (!ispart(*s))
goto bad;
*part = *s++ - 'a';
if (*s != ':')
goto bad;
*file = ++s;
}
/* no device present */
else
*file = (char *)fname;
/* return the remaining unparsed part as the file to boot */
return(0);
bad:
usage();
baddev:
return(-1);
}