fsck: treat a NUL in a tag header as an error

diff --git a/archive.c b/archive.c
index 01b0899b3f9027c5a392bd58667ed0e216d082ed..4ac86c837384c45c33dae141c3ff53dd37eb0fd5 100644 (file)
--- a/archive.c
+++ b/archive.c
@@ -171,13 +171,14 @@ static void queue_directory(const unsigned char *sha1,
                unsigned mode, int stage, struct archiver_context *c)
 {
        struct directory *d;
-       d = xmallocz(sizeof(*d) + base->len + 1 + strlen(filename));
+       size_t len = base->len + 1 + strlen(filename) + 1;
+       d = xmalloc(sizeof(*d) + len);
        d->up      = c->bottom;
        d->baselen = base->len;
        d->mode    = mode;
        d->stage   = stage;
        c->bottom  = d;
-       d->len = sprintf(d->path, "%.*s%s/", (int)base->len, base->buf, filename);
+       d->len = xsnprintf(d->path, len, "%.*s%s/", (int)base->len, base->buf, filename);
        hashcpy(d->oid.hash, sha1);
 }