From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
"Jeff King" <peff@peff.net>, "Taylor Blau" <me@ttaylorr.com>,
"Elijah Newren" <newren@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH v2 07/10] hash-object: pass along type length to object.c
Date: Tue, 20 Apr 2021 15:00:13 +0200 [thread overview]
Message-ID: <patch-07.10-a5ac9f1dd8-20210420T125416Z-avarab@gmail.com> (raw)
In-Reply-To: <cover-00.10-0000000000-20210420T125415Z-avarab@gmail.com>
Change the functions to do with passing the type down to
hash_object_file_literally() to pass the length of the type as well as
the "const char *" type name.
The immediate motivation for this is to move hash-object.c over to
type_from_string_gently() to emit a better error message, but it will
also allow us in the future to craft an invalid object with a "\0" in
the type name.
We'd need to learn a --type-file=* option or similar (we can't of
course, pass a string with "\0" on the command-line). Right now such
an object can be manually crafted, but we can't test for it with
--literally.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
builtin/hash-object.c | 31 +++++++++++++++++--------------
object-file.c | 26 +++++++++++++++-----------
object-store.h | 4 ++--
3 files changed, 34 insertions(+), 27 deletions(-)
diff --git a/builtin/hash-object.c b/builtin/hash-object.c
index 640ef4ded5..4d3b8c49d2 100644
--- a/builtin/hash-object.c
+++ b/builtin/hash-object.c
@@ -25,14 +25,14 @@ static int hash_literally(struct object_id *oid, int fd, const char *type, unsig
if (strbuf_read(&buf, fd, 4096) < 0)
ret = -1;
else
- ret = hash_object_file_literally(buf.buf, buf.len, type, oid,
- flags);
+ ret = hash_object_file_literally(buf.buf, buf.len, type,
+ strlen(type), oid, flags);
strbuf_release(&buf);
return ret;
}
-static void hash_fd(int fd, const char *type, const char *path, unsigned flags,
- int literally)
+static void hash_fd(int fd, const char *type, size_t type_len,
+ const char *path, unsigned flags, int literally)
{
struct stat st;
struct object_id oid;
@@ -49,31 +49,32 @@ static void hash_fd(int fd, const char *type, const char *path, unsigned flags,
maybe_flush_or_die(stdout, "hash to stdout");
}
-static void hash_object(const char *path, const char *type, const char *vpath,
- unsigned flags, int literally)
+static void hash_object(const char *path, const char *type, size_t type_len,
+ const char *vpath, unsigned flags, int literally)
{
int fd;
fd = open(path, O_RDONLY);
if (fd < 0)
die_errno("Cannot open '%s'", path);
- hash_fd(fd, type, vpath, flags, literally);
+ hash_fd(fd, type, type_len, vpath, flags, literally);
}
-static void hash_stdin_paths(const char *type, int no_filters, unsigned flags,
- int literally)
+static void hash_stdin_paths(const char *type, size_t type_len, int no_filters,
+ unsigned flags, int literally)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf unquoted = STRBUF_INIT;
while (strbuf_getline(&buf, stdin) != EOF) {
+ const char *vpath;
if (buf.buf[0] == '"') {
strbuf_reset(&unquoted);
if (unquote_c_style(&unquoted, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &unquoted);
}
- hash_object(buf.buf, type, no_filters ? NULL : buf.buf, flags,
- literally);
+ vpath = no_filters ? NULL : buf.buf;
+ hash_object(buf.buf, type, type_len, vpath , flags, literally);
}
strbuf_release(&buf);
strbuf_release(&unquoted);
@@ -87,6 +88,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
NULL
};
const char *type = blob_type;
+ size_t type_len;
int hashstdin = 0;
int stdin_paths = 0;
int no_filters = 0;
@@ -141,8 +143,9 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
usage_with_options(hash_object_usage, hash_object_options);
}
+ type_len = strlen(type);
if (hashstdin)
- hash_fd(0, type, vpath, flags, literally);
+ hash_fd(0, type, type_len, vpath, flags, literally);
for (i = 0 ; i < argc; i++) {
const char *arg = argv[i];
@@ -150,13 +153,13 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
if (prefix)
arg = to_free = prefix_filename(prefix, arg);
- hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg,
+ hash_object(arg, type, type_len, no_filters ? NULL : vpath ? vpath : arg,
flags, literally);
free(to_free);
}
if (stdin_paths)
- hash_stdin_paths(type, no_filters, flags, literally);
+ hash_stdin_paths(type, type_len, no_filters, flags, literally);
return 0;
}
diff --git a/object-file.c b/object-file.c
index 398f2b60f9..b27ed57e0b 100644
--- a/object-file.c
+++ b/object-file.c
@@ -1715,13 +1715,15 @@ void *read_object_with_reference(struct repository *r,
static void write_object_file_prepare(const struct git_hash_algo *algo,
const void *buf, unsigned long len,
- const char *type, struct object_id *oid,
- char *hdr, int *hdrlen)
+ const char *type, size_t type_len,
+ struct object_id *oid, char *hdr,
+ int *hdrlen)
{
git_hash_ctx c;
/* Generate the header */
- *hdrlen = xsnprintf(hdr, *hdrlen, "%s %"PRIuMAX , type, (uintmax_t)len)+1;
+ *hdrlen = xsnprintf(hdr, *hdrlen, "%.*s %"PRIuMAX,
+ (int)type_len, type, (uintmax_t)len) + 1;
/* Sha1.. */
algo->init_fn(&c);
@@ -1786,7 +1788,8 @@ int hash_object_file(const struct git_hash_algo *algo, const void *buf,
{
char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
- write_object_file_prepare(algo, buf, len, type, oid, hdr, &hdrlen);
+ write_object_file_prepare(algo, buf, len, type, strlen(type), oid, hdr,
+ &hdrlen);
return 0;
}
@@ -1940,29 +1943,30 @@ int write_object_file(const void *buf, unsigned long len, const char *type,
{
char hdr[MAX_HEADER_LEN];
int hdrlen = sizeof(hdr);
+ size_t type_len = strlen(type);
/* Normally if we have it in the pack then we do not bother writing
* it out into .git/objects/??/?{38} file.
*/
- write_object_file_prepare(the_hash_algo, buf, len, type, oid, hdr,
- &hdrlen);
+ write_object_file_prepare(the_hash_algo, buf, len, type, type_len, oid,
+ hdr, &hdrlen);
if (freshen_packed_object(oid) || freshen_loose_object(oid))
return 0;
return write_loose_object(oid, hdr, hdrlen, buf, len, 0);
}
int hash_object_file_literally(const void *buf, unsigned long len,
- const char *type, struct object_id *oid,
- unsigned flags)
+ const char *type, size_t type_len,
+ struct object_id *oid, unsigned flags)
{
char *header;
int hdrlen, status = 0;
/* type string, SP, %lu of the length plus NUL must fit this */
- hdrlen = strlen(type) + MAX_HEADER_LEN;
+ hdrlen = type_len + MAX_HEADER_LEN;
header = xmalloc(hdrlen);
- write_object_file_prepare(the_hash_algo, buf, len, type, oid, header,
- &hdrlen);
+ write_object_file_prepare(the_hash_algo, buf, len, type, type_len, oid,
+ header, &hdrlen);
if (!(flags & HASH_WRITE_OBJECT))
goto cleanup;
diff --git a/object-store.h b/object-store.h
index eab9674d08..8f043a6069 100644
--- a/object-store.h
+++ b/object-store.h
@@ -220,8 +220,8 @@ int write_object_file(const void *buf, unsigned long len,
const char *type, struct object_id *oid);
int hash_object_file_literally(const void *buf, unsigned long len,
- const char *type, struct object_id *oid,
- unsigned flags);
+ const char *type, size_t type_len,
+ struct object_id *oid, unsigned flags);
/*
* Add an object file to the in-memory object store, without writing it
--
2.31.1.723.ga5d7868e4a
next prev parent reply other threads:[~2021-04-20 13:00 UTC|newest]
Thread overview: 142+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-22 0:33 [PATCH 0/2] Pull objects of various types Daniel Barkalow
2005-06-22 0:35 ` [PATCH 1/2] Parse tags for absent objects Daniel Barkalow
2021-03-08 20:04 ` [PATCH 0/7] improve reporting of unexpected objects Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 00/10] " Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 01/10] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-28 5:35 ` Junio C Hamano
2021-03-28 15:46 ` Ævar Arnfjörð Bjarmason
2021-03-28 18:25 ` Junio C Hamano
2021-04-22 18:09 ` Felipe Contreras
2021-03-28 2:13 ` [PATCH v2 02/10] object.c: refactor type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 03/10] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 04/10] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 05/10] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 06/10] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 07/10] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 08/10] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 09/10] object tests: add test for unexpected objects in tags Ævar Arnfjörð Bjarmason
2021-03-28 2:13 ` [PATCH v2 10/10] tag: don't misreport type of tagged objects in errors Ævar Arnfjörð Bjarmason
2021-03-30 5:50 ` Junio C Hamano
2021-03-31 11:02 ` Jeff King
2021-03-31 18:05 ` Junio C Hamano
2021-03-31 18:31 ` Ævar Arnfjörð Bjarmason
2021-03-31 18:59 ` Jeff King
2021-03-31 20:46 ` Ævar Arnfjörð Bjarmason
2021-04-01 7:54 ` Jeff King
2021-04-01 8:32 ` [PATCH] ref-filter: fix NULL check for parse object failure Jeff King
2021-04-01 13:56 ` [PATCH v2 0/5] mktag tests & fix for-each-ref segfault Ævar Arnfjörð Bjarmason
2021-04-01 13:56 ` [PATCH v2 1/5] mktag tests: parse out options in helper Ævar Arnfjörð Bjarmason
2021-04-01 13:56 ` [PATCH v2 2/5] mktag tests: invert --no-strict test Ævar Arnfjörð Bjarmason
2021-04-01 13:56 ` [PATCH v2 3/5] mktag tests: do fsck on failure Ævar Arnfjörð Bjarmason
2021-04-01 13:56 ` [PATCH v2 4/5] mktag tests: test for maybe segfaulting for-each-ref Ævar Arnfjörð Bjarmason
2021-04-01 13:56 ` [PATCH v2 5/5] ref-filter: fix NULL check for parse object failure Ævar Arnfjörð Bjarmason
2021-04-01 19:19 ` Ramsay Jones
2021-04-01 19:56 ` [PATCH v2 0/5] mktag tests & fix for-each-ref segfault Junio C Hamano
2021-04-02 11:37 ` Ævar Arnfjörð Bjarmason
2021-04-02 20:51 ` Junio C Hamano
2021-04-01 19:52 ` [PATCH] ref-filter: fix NULL check for parse object failure Junio C Hamano
2021-03-31 18:41 ` [PATCH v2 10/10] tag: don't misreport type of tagged objects in errors Junio C Hamano
2021-03-31 19:00 ` Jeff King
2021-03-28 9:27 ` [PATCH v2 00/10] improve reporting of unexpected objects Jeff King
2021-03-29 13:34 ` Ævar Arnfjörð Bjarmason
2021-03-31 10:43 ` Jeff King
2021-04-09 8:07 ` [PATCH 0/2] blob/object.c: trivial readability improvements Ævar Arnfjörð Bjarmason
2021-04-09 8:07 ` [PATCH 1/2] blob.c: remove buffer & size arguments to parse_blob_buffer() Ævar Arnfjörð Bjarmason
2021-04-09 17:51 ` Jeff King
2021-04-09 22:31 ` Junio C Hamano
2021-04-10 12:57 ` Ævar Arnfjörð Bjarmason
2021-04-10 13:01 ` Ævar Arnfjörð Bjarmason
2021-04-13 8:25 ` Jeff King
2021-04-09 8:07 ` [PATCH 2/2] object.c: initialize automatic variable in lookup_object() Ævar Arnfjörð Bjarmason
2021-04-09 17:53 ` Jeff King
2021-04-09 22:32 ` Junio C Hamano
2021-04-09 8:32 ` [PATCH 0/6] {tag,object}*.c: refactorings + prep for a larger change Ævar Arnfjörð Bjarmason
2021-04-09 8:32 ` [PATCH 1/6] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-09 18:06 ` Jeff King
2021-04-09 18:10 ` Jeff King
2021-04-09 8:32 ` [PATCH 2/6] object.c: remove "gently" argument to type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-09 18:10 ` Jeff King
2021-04-09 8:32 ` [PATCH 3/6] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-04-09 18:14 ` Jeff King
2021-04-09 19:42 ` Ævar Arnfjörð Bjarmason
2021-04-09 21:29 ` Jeff King
2021-04-09 8:32 ` [PATCH 4/6] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-04-09 18:24 ` Jeff King
2021-04-09 8:32 ` [PATCH 5/6] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-04-09 18:36 ` Jeff King
2021-04-09 8:32 ` [PATCH 6/6] tag.c: use type_from_string_gently() when parsing tags Ævar Arnfjörð Bjarmason
2021-04-09 18:42 ` Jeff King
2021-04-09 8:49 ` [PATCH 0/7] object.c: add and use "is expected" utility function + object_as_type() use Ævar Arnfjörð Bjarmason
2021-04-09 8:49 ` [PATCH 1/7] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-04-09 8:49 ` [PATCH 2/7] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-04-09 8:49 ` [PATCH 3/7] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-04-09 8:49 ` [PATCH 4/7] commit-graph: use obj->type, not object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09 8:50 ` [PATCH 5/7] commit.c: don't use deref_tag() -> object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09 8:50 ` [PATCH 6/7] object.c: normalize brace style in object_as_type() Ævar Arnfjörð Bjarmason
2021-04-09 8:50 ` [PATCH 7/7] object.c: remove "quiet" parameter from object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 0/8] object.c: add and use "is expected" utility function + object_as_type() use Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 1/8] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 2/8] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-04-21 22:02 ` Jonathan Tan
2021-04-22 6:10 ` Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 3/8] object.c: add and use oid_is_type_or_die_msg() function Ævar Arnfjörð Bjarmason
2021-04-21 22:07 ` Jonathan Tan
2021-04-21 23:28 ` Josh Steadmon
2021-04-28 4:12 ` Junio C Hamano
2021-04-20 13:36 ` [PATCH v2 4/8] commit-graph: use obj->type, not object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 5/8] branch tests: assert lookup_commit_reference_gently() error Ævar Arnfjörð Bjarmason
2021-04-20 13:36 ` [PATCH v2 6/8] commit.c: don't use deref_tag() -> object_as_type() Ævar Arnfjörð Bjarmason
2021-04-21 22:26 ` Jonathan Tan
2021-04-20 13:36 ` [PATCH v2 7/8] object.c: normalize brace style in object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:37 ` [PATCH v2 8/8] object.c: remove "quiet" parameter from object_as_type() Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 00/10] {tag,object}*.c: refactorings + prep for a larger change Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 01/10] object.c: stop supporting len == -1 in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 02/10] object.c: remove "gently" argument to type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 03/10] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 04/10] object-file.c: make oid_object_info() " Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 05/10] object-name.c: make dependency on object_type order more obvious Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 06/10] tag.c: use type_from_string_gently() when parsing tags Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` Ævar Arnfjörð Bjarmason [this message]
2021-04-20 13:00 ` [PATCH v2 08/10] hash-object: refactor nested else/if/if into else if/else if Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 09/10] hash-object: show usage on invalid --type Ævar Arnfjörð Bjarmason
2021-04-20 13:00 ` [PATCH v2 10/10] object.c: move type_from_string() code to its last user Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 00/10] object.c et al: tests, small bug fixes etc Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 01/10] cat-file tests: test for bogus type name handling Ævar Arnfjörð Bjarmason
2021-04-29 4:15 ` Junio C Hamano
2021-04-20 12:50 ` [PATCH v2 02/10] hash-object tests: more detailed test for invalid type Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 03/10] mktree tests: add test for invalid object type Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 04/10] object-file.c: take type id, not string, in read_object_with_reference() Ævar Arnfjörð Bjarmason
2021-04-29 4:37 ` Junio C Hamano
2021-04-20 12:50 ` [PATCH v2 05/10] {commit,tree,blob,tag}.c: add a create_{commit,tree,blob,tag}() Ævar Arnfjörð Bjarmason
2021-04-29 4:45 ` Junio C Hamano
2021-04-29 12:01 ` Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 06/10] blob.c: remove parse_blob_buffer() Ævar Arnfjörð Bjarmason
2021-04-29 4:51 ` Junio C Hamano
2021-04-20 12:50 ` [PATCH v2 07/10] object.c: simplify return semantic of parse_object_buffer() Ævar Arnfjörð Bjarmason
2021-04-20 12:50 ` [PATCH v2 08/10] object.c: don't go past "len" under die() in type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-04-29 4:55 ` Junio C Hamano
2021-04-20 12:50 ` [PATCH v2 09/10] mktree: stop setting *ntr++ to NIL Ævar Arnfjörð Bjarmason
2021-04-29 5:01 ` Junio C Hamano
2021-04-20 12:50 ` [PATCH v2 10/10] mktree: emit a more detailed error when the <type> is invalid Ævar Arnfjörð Bjarmason
2021-03-08 20:04 ` [PATCH 1/7] object.c: refactor type_from_string_gently() Ævar Arnfjörð Bjarmason
2021-03-08 20:52 ` Taylor Blau
2021-03-09 10:46 ` Jeff King
2021-03-08 20:04 ` [PATCH 2/7] object.c: make type_from_string() return "enum object_type" Ævar Arnfjörð Bjarmason
2021-03-08 20:56 ` Taylor Blau
2021-03-08 21:48 ` Junio C Hamano
2021-03-08 20:04 ` [PATCH 3/7] oid_object_info(): " Ævar Arnfjörð Bjarmason
2021-03-08 21:54 ` Junio C Hamano
2021-03-08 22:32 ` Junio C Hamano
2021-03-09 10:34 ` Jeff King
2021-03-08 20:04 ` [PATCH 4/7] tree.c: fix misindentation in parse_tree_gently() Ævar Arnfjörð Bjarmason
2021-03-08 20:04 ` [PATCH 5/7] object.c: add a utility function for "expected type X, got Y" Ævar Arnfjörð Bjarmason
2021-03-08 20:59 ` Taylor Blau
2021-03-08 22:15 ` Junio C Hamano
2021-03-08 20:04 ` [PATCH 6/7] object tests: add test for unexpected objects in tags Ævar Arnfjörð Bjarmason
2021-03-09 10:44 ` Jeff King
2021-03-28 1:35 ` Ævar Arnfjörð Bjarmason
2021-03-28 9:06 ` Jeff King
2021-03-28 15:39 ` Ævar Arnfjörð Bjarmason
2021-03-29 9:16 ` Jeff King
2021-03-08 20:04 ` [PATCH 7/7] tag: don't misreport type of tagged objects in errors Ævar Arnfjörð Bjarmason
2005-06-22 0:35 ` [PATCH 2/2] Pull misc objects Daniel Barkalow
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