diff options
| -rw-r--r-- | Documentation/fsck-msgids.txt | 7 | ||||
| -rw-r--r-- | fsck.c | 24 | ||||
| -rw-r--r-- | fsck.h | 1 | ||||
| -rwxr-xr-x | t/t1450-fsck.sh | 10 |
4 files changed, 41 insertions, 1 deletions
diff --git a/Documentation/fsck-msgids.txt b/Documentation/fsck-msgids.txt index 12eae8a222..09b0aecbf8 100644 --- a/Documentation/fsck-msgids.txt +++ b/Documentation/fsck-msgids.txt @@ -103,6 +103,13 @@ `hasDotgit`:: (WARN) A tree contains an entry named `.git`. +`largePathname`:: + (WARN) A tree contains an entry with a very long path name. If + the value of `fsck.largePathname` contains a colon, that value + is used as the maximum allowable length (e.g., "warn:10" would + complain about any path component of 11 or more bytes). The + default value is 4096. + `mailmapSymlink`:: (INFO) `.mailmap` is a symlink. @@ -24,6 +24,8 @@ #include "credential.h" #include "help.h" +static ssize_t max_tree_entry_len = 4096; + #define STR(x) #x #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type }, static struct { @@ -154,15 +156,29 @@ void fsck_set_msg_type(struct fsck_options *options, const char *msg_id_str, const char *msg_type_str) { int msg_id = parse_msg_id(msg_id_str); - enum fsck_msg_type msg_type = parse_msg_type(msg_type_str); + char *to_free = NULL; + enum fsck_msg_type msg_type; if (msg_id < 0) die("Unhandled message id: %s", msg_id_str); + if (msg_id == FSCK_MSG_LARGE_PATHNAME) { + const char *colon = strchr(msg_type_str, ':'); + if (colon) { + msg_type_str = to_free = + xmemdupz(msg_type_str, colon - msg_type_str); + colon++; + if (!git_parse_ssize_t(colon, &max_tree_entry_len)) + die("unable to parse max tree entry len: %s", colon); + } + } + msg_type = parse_msg_type(msg_type_str); + if (msg_type != FSCK_ERROR && msg_id_info[msg_id].msg_type == FSCK_FATAL) die("Cannot demote %s to %s", msg_id_str, msg_type_str); fsck_set_msg_type_from_ids(options, msg_id, msg_type); + free(to_free); } void fsck_set_msg_types(struct fsck_options *options, const char *values) @@ -578,6 +594,7 @@ static int fsck_tree(const struct object_id *tree_oid, int has_bad_modes = 0; int has_dup_entries = 0; int not_properly_sorted = 0; + int has_large_name = 0; struct tree_desc desc; unsigned o_mode; const char *o_name; @@ -607,6 +624,7 @@ static int fsck_tree(const struct object_id *tree_oid, has_dotdot |= !strcmp(name, ".."); has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name); has_zero_pad |= *(char *)desc.buffer == '0'; + has_large_name |= tree_entry_len(&desc.entry) > max_tree_entry_len; if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) { if (!S_ISLNK(mode)) @@ -749,6 +767,10 @@ static int fsck_tree(const struct object_id *tree_oid, retval += report(options, tree_oid, OBJ_TREE, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted"); + if (has_large_name) + retval += report(options, tree_oid, OBJ_TREE, + FSCK_MSG_LARGE_PATHNAME, + "contains excessively large pathname"); return retval; } @@ -73,6 +73,7 @@ enum fsck_msg_type { FUNC(NULL_SHA1, WARN) \ FUNC(ZERO_PADDED_FILEMODE, WARN) \ FUNC(NUL_IN_COMMIT, WARN) \ + FUNC(LARGE_PATHNAME, WARN) \ /* infos (reported as warnings, but ignored by default) */ \ FUNC(BAD_FILEMODE, INFO) \ FUNC(GITMODULES_PARSE, INFO) \ diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh index 5805d47eb9..10a539158c 100755 --- a/t/t1450-fsck.sh +++ b/t/t1450-fsck.sh @@ -589,6 +589,16 @@ test_expect_success 'fsck notices submodule entry pointing to null sha1' ' ) ' +test_expect_success 'fsck notices excessively large tree entry name' ' + git init large-name && + ( + cd large-name && + test_commit a-long-name && + git -c fsck.largePathname=warn:10 fsck 2>out && + grep "warning.*large pathname" out + ) +' + while read name path pretty; do while read mode type; do : ${pretty:=$path} |