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authorMatheus Tavares <matheus.bernardino@usp.br>2020-01-30 20:32:23 (GMT)
committerJunio C Hamano <gitster@pobox.com>2020-01-31 18:45:39 (GMT)
commitb98d18858187eb926912d5199533a6d2a14d5007 (patch)
tree11390f92d70b5c1f1b185004e4c394203768a712
parent2dcde20e1c55fc2e3f9e9e6d48e93c39ec5661d2 (diff)
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sha1-file: allow check_object_signature() to handle any repo
Some callers of check_object_signature() can work on arbitrary repositories, but the repo does not get passed to this function. Instead, the_repository is always used internally. To fix possible inconsistencies, allow the function to receive a struct repository and make those callers pass on the repo being handled. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/fast-export.c3
-rw-r--r--builtin/index-pack.c5
-rw-r--r--builtin/mktag.c7
-rw-r--r--cache.h3
-rw-r--r--object.c5
-rw-r--r--pack-check.c2
-rw-r--r--sha1-file.c21
7 files changed, 27 insertions, 19 deletions
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index dbec4df..25386b3 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -293,7 +293,8 @@ static void export_blob(const struct object_id *oid)
buf = read_object_file(oid, &type, &size);
if (!buf)
die("could not read blob %s", oid_to_hex(oid));
- if (check_object_signature(oid, buf, size, type_name(type)) < 0)
+ if (check_object_signature(the_repository, oid, buf, size,
+ type_name(type)) < 0)
die("oid mismatch in blob %s", oid_to_hex(oid));
object = parse_object_buffer(the_repository, oid, type,
size, buf, &eaten);
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 0183610..acdda17 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1384,8 +1384,9 @@ static void fix_unresolved_deltas(struct hashfile *f)
if (!base_obj->data)
continue;
- if (check_object_signature(&d->oid, base_obj->data,
- base_obj->size, type_name(type)))
+ if (check_object_signature(the_repository, &d->oid,
+ base_obj->data, base_obj->size,
+ type_name(type)))
die(_("local object %s is corrupt"), oid_to_hex(&d->oid));
base_obj->obj = append_obj_to_pack(f, d->oid.hash,
base_obj->data, base_obj->size, type);
diff --git a/builtin/mktag.c b/builtin/mktag.c
index 6fb7dc8..4982d3a 100644
--- a/builtin/mktag.c
+++ b/builtin/mktag.c
@@ -29,8 +29,11 @@ static int verify_object(const struct object_id *oid, const char *expected_type)
const struct object_id *repl = lookup_replace_object(the_repository, oid);
if (buffer) {
- if (type == type_from_string(expected_type))
- ret = check_object_signature(repl, buffer, size, expected_type);
+ if (type == type_from_string(expected_type)) {
+ ret = check_object_signature(the_repository, repl,
+ buffer, size,
+ expected_type);
+ }
free(buffer);
}
return ret;
diff --git a/cache.h b/cache.h
index cbfaead..40ae160 100644
--- a/cache.h
+++ b/cache.h
@@ -1363,7 +1363,8 @@ int git_open_cloexec(const char *name, int flags);
int unpack_loose_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
int parse_loose_header(const char *hdr, unsigned long *sizep);
-int check_object_signature(const struct object_id *oid, void *buf, unsigned long size, const char *type);
+int check_object_signature(struct repository *r, const struct object_id *oid,
+ void *buf, unsigned long size, const char *type);
int finalize_object_file(const char *tmpfile, const char *filename);
diff --git a/object.c b/object.c
index 142ef69..81f5820 100644
--- a/object.c
+++ b/object.c
@@ -262,7 +262,7 @@ struct object *parse_object(struct repository *r, const struct object_id *oid)
if ((obj && obj->type == OBJ_BLOB && repo_has_object_file(r, oid)) ||
(!obj && repo_has_object_file(r, oid) &&
oid_object_info(r, oid, NULL) == OBJ_BLOB)) {
- if (check_object_signature(repl, NULL, 0, NULL) < 0) {
+ if (check_object_signature(r, repl, NULL, 0, NULL) < 0) {
error(_("hash mismatch %s"), oid_to_hex(oid));
return NULL;
}
@@ -272,7 +272,8 @@ struct object *parse_object(struct repository *r, const struct object_id *oid)
buffer = repo_read_object_file(r, oid, &type, &size);
if (buffer) {
- if (check_object_signature(repl, buffer, size, type_name(type)) < 0) {
+ if (check_object_signature(r, repl, buffer, size,
+ type_name(type)) < 0) {
free(buffer);
error(_("hash mismatch %s"), oid_to_hex(repl));
return NULL;
diff --git a/pack-check.c b/pack-check.c
index 0fb3b36..e4ef71c 100644
--- a/pack-check.c
+++ b/pack-check.c
@@ -144,7 +144,7 @@ static int verify_packfile(struct repository *r,
err = error("cannot unpack %s from %s at offset %"PRIuMAX"",
oid_to_hex(entries[i].oid.oid), p->pack_name,
(uintmax_t)entries[i].offset);
- else if (check_object_signature(entries[i].oid.oid, data, size, type_name(type)))
+ else if (check_object_signature(r, entries[i].oid.oid, data, size, type_name(type)))
err = error("packed %s from %s is corrupt",
oid_to_hex(entries[i].oid.oid), p->pack_name);
else if (fn) {
diff --git a/sha1-file.c b/sha1-file.c
index 46a79e7..fcedef9 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -971,8 +971,8 @@ void *xmmap(void *start, size_t length,
* With "map" == NULL, try reading the object named with "oid" using
* the streaming interface and rehash it to do the same.
*/
-int check_object_signature(const struct object_id *oid, void *map,
- unsigned long size, const char *type)
+int check_object_signature(struct repository *r, const struct object_id *oid,
+ void *map, unsigned long size, const char *type)
{
struct object_id real_oid;
enum object_type obj_type;
@@ -982,11 +982,11 @@ int check_object_signature(const struct object_id *oid, void *map,
int hdrlen;
if (map) {
- hash_object_file(the_hash_algo, map, size, type, &real_oid);
+ hash_object_file(r->hash_algo, map, size, type, &real_oid);
return !oideq(oid, &real_oid) ? -1 : 0;
}
- st = open_istream(the_repository, oid, &obj_type, &size, NULL);
+ st = open_istream(r, oid, &obj_type, &size, NULL);
if (!st)
return -1;
@@ -994,8 +994,8 @@ int check_object_signature(const struct object_id *oid, void *map,
hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX , type_name(obj_type), (uintmax_t)size) + 1;
/* Sha1.. */
- the_hash_algo->init_fn(&c);
- the_hash_algo->update_fn(&c, hdr, hdrlen);
+ r->hash_algo->init_fn(&c);
+ r->hash_algo->update_fn(&c, hdr, hdrlen);
for (;;) {
char buf[1024 * 16];
ssize_t readlen = read_istream(st, buf, sizeof(buf));
@@ -1006,9 +1006,9 @@ int check_object_signature(const struct object_id *oid, void *map,
}
if (!readlen)
break;
- the_hash_algo->update_fn(&c, buf, readlen);
+ r->hash_algo->update_fn(&c, buf, readlen);
}
- the_hash_algo->final_fn(real_oid.hash, &c);
+ r->hash_algo->final_fn(real_oid.hash, &c);
close_istream(st);
return !oideq(oid, &real_oid) ? -1 : 0;
}
@@ -2456,8 +2456,9 @@ int read_loose_object(const char *path,
git_inflate_end(&stream);
goto out;
}
- if (check_object_signature(expected_oid, *contents,
- *size, type_name(*type))) {
+ if (check_object_signature(the_repository, expected_oid,
+ *contents, *size,
+ type_name(*type))) {
error(_("hash mismatch for %s (expected %s)"), path,
oid_to_hex(expected_oid));
free(*contents);