hash-object: fix buffer reuse with --path in a subdirectory

diff --git a/builtin/hash-object.c b/builtin/hash-object.c
index 9028e1fdccea2ad44a76792adc6e335fb44cfb5c..56df77b0c2a299fcba56a2542f7adb34869ced9f 100644 (file)
--- a/builtin/hash-object.c
+++ b/builtin/hash-object.c
@@ -115,7 +115,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
 
        prefix_length = prefix ? strlen(prefix) : 0;
        if (vpath && prefix)
-               vpath = prefix_filename(prefix, prefix_length, vpath);
+               vpath = xstrdup(prefix_filename(prefix, prefix_length, vpath));
 
        git_config(git_default_config, NULL);
 
@@ -144,11 +144,14 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
 
        for (i = 0 ; i < argc; i++) {
                const char *arg = argv[i];
+               char *to_free = NULL;
 
                if (0 <= prefix_length)
-                       arg = prefix_filename(prefix, prefix_length, arg);
+                       arg = to_free =
+                               xstrdup(prefix_filename(prefix, prefix_length, arg));
                hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg,
                            flags, literally);
+               free(to_free);
        }
 
        if (stdin_paths)