--- sysfsutils-2.1.0/lib/sysfs_utils.c	2008-11-05 18:23:41.000000000 +0000
+++ build-tree/sysfsutils-2.1.0/lib/sysfs_utils.c	2008-11-05 18:22:59.000000000 +0000
@@ -23,6 +23,10 @@
 #include "libsysfs.h"
 #include "sysfs.h"
 #include <mntent.h>
+#include <sys/stat.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
 
 /**
  * sysfs_remove_trailing_slash: Removes any trailing '/' in the given path
@@ -138,87 +142,31 @@
  */
 int sysfs_get_link(const char *path, char *target, size_t len)
 {
-	char devdir[SYSFS_PATH_MAX];
-	char linkpath[SYSFS_PATH_MAX];
-	char temp_path[SYSFS_PATH_MAX];
-	char *d = NULL, *s = NULL;
-	int slashes = 0, count = 0;
+	struct stat path_stat;
+	char *resolved_path;
 
 	if (!path || !target || len == 0) {
 		errno = EINVAL;
 		return -1;
 	}
 
-	memset(devdir, 0, SYSFS_PATH_MAX);
-	memset(linkpath, 0, SYSFS_PATH_MAX);
-	memset(temp_path, 0, SYSFS_PATH_MAX);
-	safestrcpy(devdir, path);
+	/* If path is not a symlink, fail */
+        if (stat(path, &path_stat) != 0 || (path_stat.st_mode & S_IFLNK))
+		return -1;
 
-	if ((readlink(path, linkpath, SYSFS_PATH_MAX)) < 0) {
+	/* Canonicalize the path */
+	resolved_path = canonicalize_file_name(path);
+        
+	/* We fail if we cannot find the canonical path, or it is too long to copy */
+	if (resolved_path == NULL || strlen(resolved_path) >= SYSFS_PATH_MAX) {
+                free(resolved_path);
 		return -1;
 	}
-	d = linkpath;
-	/*
-	 * Three cases here:
-	 * 1. relative path => format ../..
-	 * 2. absolute path => format /abcd/efgh
-	 * 3. relative path _from_ this dir => format abcd/efgh
-	 */
-	switch (*d) {
-		case '.':
-			/*
-			 * handle the case where link is of type ./abcd/xxx
-			 */
-			safestrcpy(temp_path, devdir);
-			if (*(d+1) == '/')
-				d += 2;
-			else if (*(d+1) == '.')
-				goto parse_path;
-			s = strrchr(temp_path, '/');
-			if (s != NULL) {
-				*(s+1) = '\0';
-				safestrcat(temp_path, d);
-			} else {
-				safestrcpy(temp_path, d);
-			}
-			safestrcpymax(target, temp_path, len);
-			break;
-			/*
-			 * relative path, getting rid of leading "../.."
-			 */
-parse_path:
-			while (*d == '/' || *d == '.') {
-				if (*d == '/')
-					slashes++;
-				d++;
-			}
-			d--;
-			s = &devdir[strlen(devdir)-1];
-			while (s != NULL && count != (slashes+1)) {
-				s--;
-				if (*s == '/')
-					count++;
-			}
-			safestrcpymax(s, d, (SYSFS_PATH_MAX-strlen(devdir)));
-			safestrcpymax(target, devdir, len);
-			break;
-		case '/':
-			/* absolute path - copy as is */
-			safestrcpymax(target, linkpath, len);
-			break;
-		default:
-			/* relative path from this directory */
-			safestrcpy(temp_path, devdir);
-			s = strrchr(temp_path, '/');
-			if (s != NULL) {
-				*(s+1) = '\0';
-				safestrcat(temp_path, linkpath);
-			} else {
-				safestrcpy(temp_path, linkpath);
-			}
-			safestrcpymax(target, temp_path, len);
+	else {
+		strncpy(target, resolved_path, SYSFS_PATH_MAX);
+                free(resolved_path);
+		return 0;
 	}
-	return 0;
 }
 
 /**