add: refuse to add working tree items beyond symlinks

This is the same fix for the issue of adding "sym/path" when "sym" is a
symblic link that points at a directory "dir" with "path" in it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-add.c b/builtin-add.c
index fc3f96eaefff91e4e85adb92162716939f0ecd72..81b64d7b9d69f06fff70870e8a55fc4ad506133e 100644 (file)
--- a/builtin-add.c
+++ b/builtin-add.c
@@ -153,6 +153,16 @@ static const char **validate_pathspec(int argc, const char **argv, const char *p
 {
        const char **pathspec = get_pathspec(prefix, argv);
 
+       if (pathspec) {
+               const char **p;
+               for (p = pathspec; *p; p++) {
+                       if (has_symlink_leading_path(strlen(*p), *p)) {
+                               int len = prefix ? strlen(prefix) : 0;
+                               die("'%s' is beyond a symbolic link", *p + len);
+                       }
+               }
+       }
+
        return pathspec;
 }
 
@@ -278,7 +288,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
                fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
                return 0;
        }
-       pathspec = get_pathspec(prefix, argv);
+       pathspec = validate_pathspec(argc, argv, prefix);
 
        /*
         * If we are adding new files, we need to scan the working

diff --git a/dir.c b/dir.c
index 29d1d5ba31def46ba8b55905dc60773cc6cc167e..ae7046fd034ab828aa7e867ad9cbaa553d5edc0d 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -727,8 +727,12 @@ static void free_simplify(struct path_simplify *simplify)
 
 int read_directory(struct dir_struct *dir, const char *path, const char *base, int baselen, const char **pathspec)
 {
-       struct path_simplify *simplify = create_simplify(pathspec);
+       struct path_simplify *simplify;
 
+       if (has_symlink_leading_path(strlen(path), path))
+               return dir->nr;
+
+       simplify = create_simplify(pathspec);
        read_directory_recursive(dir, path, base, baselen, 0, simplify);
        free_simplify(simplify);
        qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);

diff --git a/t/t0055-beyond-symlinks.sh b/t/t0055-beyond-symlinks.sh
index eb11dd7821cfab0162751d2684aa7098f851e322..b29c37a5a4de42239474c4fdf87c86c6f27b6ade 100755 (executable)
--- a/t/t0055-beyond-symlinks.sh
+++ b/t/t0055-beyond-symlinks.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-test_description='update-index refuses to add beyond symlinks'
+test_description='update-index and add refuse to add beyond symlinks'
 
 . ./test-lib.sh
 
@@ -17,4 +17,9 @@ test_expect_success 'update-index --add beyond symlinks' '
        ! ( git ls-files | grep c/d )
 '
 
+test_expect_success 'add beyond symlinks' '
+       test_must_fail git add c/d &&
+       ! ( git ls-files | grep c/d )
+'
+
 test_done