Fix a bug that prevented exists() from finding "foo/", "foo/."

and "foo/.." when ".PATH: foo" was also given.

PR:		bin/34062

1 files changed, 8 insertions, 3 deletions

diff --git a/usr.bin/make/dir.c b/usr.bin/make/dir.c
index 57d1687..137a21e 100644
--- a/usr.bin/make/dir.c
+++ b/usr.bin/make/dir.c
@@ -680,7 +680,7 @@ Dir_FindFile (char *name, Lst path)
     LstNode       ln;	    /* a list element */
     char          *file;    /* the current filename to check */
     Path          *p;	    /* current path member */
-    char          *cp;	    /* index of first slash, if any */
+    char          *cp;	    /* final component of the name */
     Boolean	  hasSlash; /* true if 'name' contains a / */
     struct stat	  stb;	    /* Buffer for stat, if necessary */
     Hash_Entry	  *entry;   /* Entry for mtimes table */
@@ -767,9 +767,14 @@ Dir_FindFile (char *name, Lst path)
 		continue;
 	    }
 	    if (*p1 == '\0' && p2 == cp - 1) {
-		DEBUGF(DIR, ("must be here but isn't -- returing NULL\n"));
 		Lst_Close (path);
-		return ((char *) NULL);
+		if (*cp == '\0' || ISDOT(cp) || ISDOTDOT(cp)) {
+		    DEBUGF(DIR, ("returning %s\n", name));
+		    return (estrdup(name));
+		} else {
+		    DEBUGF(DIR, ("must be here but isn't -- returning NULL\n"));
+		    return ((char *) NULL);
+		}
 	    }
 	}
     }