Documentation: use brackets for optional arguments

diff --git a/fsck.c b/fsck.c
index ca4c68537788496dea803b559e2ffd4cf1dbeea7..3366b3fb620fddaf542d7c23e1f6c1c564f8fbe8 100644 (file)
--- a/fsck.c
+++ b/fsck.c
@@ -59,6 +59,7 @@
        FUNC(HAS_DOTGIT, WARN) \
        FUNC(NULL_SHA1, WARN) \
        FUNC(ZERO_PADDED_FILEMODE, WARN) \
+       FUNC(NUL_IN_COMMIT, WARN) \
        /* infos (reported as warnings, but ignored by default) */ \
        FUNC(BAD_TAG_NAME, INFO) \
        FUNC(MISSING_TAGGER_ENTRY, INFO)
@@ -610,6 +611,7 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
        struct commit_graft *graft;
        unsigned parent_count, parent_line_count = 0, author_count;
        int err;
+       const char *buffer_begin = buffer;
 
        if (verify_headers(buffer, size, &commit->object, options))
                return -1;
@@ -666,9 +668,17 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
        err = fsck_ident(&buffer, &commit->object, options);
        if (err)
                return err;
-       if (!commit->tree)
-               return report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
-
+       if (!commit->tree) {
+               err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", sha1_to_hex(tree_sha1));
+               if (err)
+                       return err;
+       }
+       if (memchr(buffer_begin, '\0', size)) {
+               err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
+                            "NUL byte in the commit object body");
+               if (err)
+                       return err;
+       }
        return 0;
 }