OS-3280 need a way to specify the root of a native system in the lx brand
OS-3279 lx brand should allow delegated datasets
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

@@ -35,10 +35,11 @@
 #include <sys/mkdev.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 
 #include "pmap_common.h"
+#include "ptools_common.h"
 
 /*
  * We compare the high memory addresses since stacks are faulted in from
  * high memory addresses to low memory addresses, and our prmap_t
  * structures identify only the range of addresses that have been faulted

@@ -86,20 +87,20 @@
 
         if (Pstate(Pr) == PS_DEAD || *mapname == '\0')
                 return (NULL);
 
         /* first see if we can find a path via /proc */
-        (void) snprintf(path, sizeof (path), "/proc/%d/path/%s",
+        (void) proc_snprintf(path, sizeof (path), "/proc/%d/path/%s",
             (int)Psp->pr_pid, mapname);
         len = readlink(path, buf, bufsz - 1);
         if (len >= 0) {
                 buf[len] = '\0';
                 return (buf);
         }
 
         /* fall back to object information reported by /proc */
-        (void) snprintf(path, sizeof (path),
+        (void) proc_snprintf(path, sizeof (path),
             "/proc/%d/object/%s", (int)Psp->pr_pid, mapname);
         if (stat(path, &statb) == 0) {
                 dev_t dev = statb.st_dev;
                 ino_t ino = statb.st_ino;
                 (void) snprintf(buf, bufsz, "dev:%lu,%lu ino:%lu",