commit 06b5347948ff2d675ebbeb943941e2b7610082f3
author Mark Adler <madler@alumni.caltech.edu> Sat Oct 01 21:20:32 2016 -0700
committer Mark Adler <madler@alumni.caltech.edu> Sat Oct 01 21:20:32 2016 -0700
tree 45db2c4f6dffdcb14680977b04844addc95cc778
parent 1a4c40416f35f838a1b9071eedfe9d4bed215699

Fix bug in directory traversal.

This off-by-one error resulted in useless reexamination of the
same files by descending twice into each directory.

pigz.c

diff --git a/pigz.c b/pigz.c
index d7694ea..dd96534 100644
--- a/pigz.c
+++ b/pigz.c
@@ -3542,7 +3542,7 @@
 
             /* run process() for each entry in the directory */
             base = len && g.inf[len - 1] != (unsigned char)'/' ?
-                   vstrcpy(&g.inf, &g.inz, len, "/") : len;
+                   vstrcpy(&g.inf, &g.inz, len, "/") - 1 : len;
             for (off = 0; roll[off]; off += strlen(roll + off) + 1) {
                 vstrcpy(&g.inf, &g.inz, base, roll + off);
                 process(g.inf);