namei: fix alone symlink evaluation

	$ mkdir aaa
	$ ln -s aaa mylink

old version:

	$ namei mylink
	namei: could not stat 'mylink/aaa': No such file or directory

new version:

        $ namei mylink
	f: mylink
	 l mylink -> aaa
	   d aaa

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/misc-utils/namei.c b/misc-utils/namei.c
index b8930cdf0..ebd82fdb8 100644
--- a/misc-utils/namei.c
+++ b/misc-utils/namei.c
@@ -190,14 +190,15 @@ readlink_to_namei(struct namei *nm, const char *path)
 	if (*sym != '/') {
 		char *p = strrchr(path, '/');
 
-		nm->relstart = p ? p - path : strlen(path);
-		sz += nm->relstart + 1;
+		nm->relstart = p ? p - path : 0;
+		if (nm->relstart)
+			sz += nm->relstart + 1;
 	}
 	nm->abslink = malloc(sz + 1);
 	if (!nm->abslink)
 		err(EXIT_FAILURE, _("out of memory?"));
 
-	if (*sym != '/') {
+	if (*sym != '/' && nm->relstart) {
 		/* create the absolute path from the relative symlink */
 		memcpy(nm->abslink, path, nm->relstart);
 		*(nm->abslink + nm->relstart) = '/';