From eb999b3295b22680a41c0d807a8b442407b1b19f Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:17 -0300 Subject: diff: make diff_populate_filespec() honor its repo argument diff_populate_filespec() takes a struct repository argument but it doesn't get passed down to read_object_file(). Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- diff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/diff.c b/diff.c index 8e2914c031..0f333c27d6 100644 --- a/diff.c +++ b/diff.c @@ -4024,7 +4024,7 @@ int diff_populate_filespec(struct repository *r, return 0; } } - s->data = read_object_file(&s->oid, &type, &s->size); + s->data = repo_read_object_file(r, &s->oid, &type, &s->size); if (!s->data) die("unable to read %s", oid_to_hex(&s->oid)); s->should_free = 1; -- cgit v1.2.3 From a6519467304dacb356da8a6c471d735ee6e846a4 Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:18 -0300 Subject: cache-tree: use given repo's hash_algo at verify_one() verify_one() takes a struct repository argument but uses the_hash_algo internally. Replace it with the provided repo's git_hash_algo, for consistency. For now, this is mainly a cosmetic change, as all callers of this function currently only pass the_repository to it. Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- cache-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cache-tree.c b/cache-tree.c index 1bd1b23d38..8c51a15751 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -826,7 +826,7 @@ static void verify_one(struct repository *r, i++; } strbuf_addf(&tree_buf, "%o %.*s%c", mode, entlen, name, '\0'); - strbuf_add(&tree_buf, oid->hash, the_hash_algo->rawsz); + strbuf_add(&tree_buf, oid->hash, r->hash_algo->rawsz); } hash_object_file(tree_buf.buf, tree_buf.len, tree_type, &new_oid); if (!oideq(&new_oid, &it->oid)) -- cgit v1.2.3 From 5ec9b8accd6591641115d692fe2e9c4b88019d97 Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:19 -0300 Subject: pack-check: use given repo's hash_algo at verify_packfile() At verify_packfile(), use the git_hash_algo from the provided repository instead of the_hash_algo, for consistency. Like the previous patch, this shouldn't bring any behavior changes, since this function is currently only receiving the_repository. Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- pack-check.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/pack-check.c b/pack-check.c index 2cc3603189..0fb3b365c7 100644 --- a/pack-check.c +++ b/pack-check.c @@ -67,23 +67,23 @@ static int verify_packfile(struct repository *r, if (!is_pack_valid(p)) return error("packfile %s cannot be accessed", p->pack_name); - the_hash_algo->init_fn(&ctx); + r->hash_algo->init_fn(&ctx); do { unsigned long remaining; unsigned char *in = use_pack(p, w_curs, offset, &remaining); offset += remaining; if (!pack_sig_ofs) - pack_sig_ofs = p->pack_size - the_hash_algo->rawsz; + pack_sig_ofs = p->pack_size - r->hash_algo->rawsz; if (offset > pack_sig_ofs) remaining -= (unsigned int)(offset - pack_sig_ofs); - the_hash_algo->update_fn(&ctx, in, remaining); + r->hash_algo->update_fn(&ctx, in, remaining); } while (offset < pack_sig_ofs); - the_hash_algo->final_fn(hash, &ctx); + r->hash_algo->final_fn(hash, &ctx); pack_sig = use_pack(p, w_curs, pack_sig_ofs, NULL); if (!hasheq(hash, pack_sig)) err = error("%s pack checksum mismatch", p->pack_name); - if (!hasheq(index_base + index_size - the_hash_algo->hexsz, pack_sig)) + if (!hasheq(index_base + index_size - r->hash_algo->hexsz, pack_sig)) err = error("%s pack checksum does not match its index", p->pack_name); unuse_pack(w_curs); -- cgit v1.2.3 From c8123e72f6d8bc4106afdd172895a28b0c30fb3b Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:20 -0300 Subject: streaming: allow open_istream() to handle any repo Some callers of open_istream() at archive-tar.c and archive-zip.c are capable of working on arbitrary repositories but the repo struct is not passed down to open_istream(), which uses the_repository internally. For now, that's not a problem since the said callers are only being called with the_repository. But to be consistent and avoid future problems, let's allow open_istream() to receive a struct repository and use that instead of the_repository. This parameter addition will also be used in a future patch to make sha1-file.c:check_object_signature() be able to work on arbitrary repos. Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- archive-tar.c | 6 +++--- archive-zip.c | 3 ++- builtin/index-pack.c | 3 ++- builtin/pack-objects.c | 3 ++- sha1-file.c | 2 +- streaming.c | 28 +++++++++++++++------------- streaming.h | 4 +++- 7 files changed, 28 insertions(+), 21 deletions(-) diff --git a/archive-tar.c b/archive-tar.c index e16d3f756d..5a77701a15 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -112,7 +112,7 @@ static void write_trailer(void) * queues up writes, so that all our write(2) calls write exactly one * full block; pads writes to RECORDSIZE */ -static int stream_blocked(const struct object_id *oid) +static int stream_blocked(struct repository *r, const struct object_id *oid) { struct git_istream *st; enum object_type type; @@ -120,7 +120,7 @@ static int stream_blocked(const struct object_id *oid) char buf[BLOCKSIZE]; ssize_t readlen; - st = open_istream(oid, &type, &sz, NULL); + st = open_istream(r, oid, &type, &sz, NULL); if (!st) return error(_("cannot stream blob %s"), oid_to_hex(oid)); for (;;) { @@ -324,7 +324,7 @@ static int write_tar_entry(struct archiver_args *args, if (buffer) write_blocked(buffer, size); else - err = stream_blocked(oid); + err = stream_blocked(args->repo, oid); } free(buffer); return err; diff --git a/archive-zip.c b/archive-zip.c index 11f5b1974b..e9f426298b 100644 --- a/archive-zip.c +++ b/archive-zip.c @@ -345,7 +345,8 @@ static int write_zip_entry(struct archiver_args *args, if (S_ISREG(mode) && type == OBJ_BLOB && !args->convert && size > big_file_threshold) { - stream = open_istream(oid, &type, &size, NULL); + stream = open_istream(args->repo, oid, &type, &size, + NULL); if (!stream) return error(_("cannot stream blob %s"), oid_to_hex(oid)); diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 60a5591039..7a08da8401 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -757,7 +757,8 @@ static int check_collison(struct object_entry *entry) memset(&data, 0, sizeof(data)); data.entry = entry; - data.st = open_istream(&entry->idx.oid, &type, &size, NULL); + data.st = open_istream(the_repository, &entry->idx.oid, &type, &size, + NULL); if (!data.st) return -1; if (size != entry->size || type != entry->type) diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 393c20a2d7..ef17efd94e 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -303,7 +303,8 @@ static unsigned long write_no_reuse_object(struct hashfile *f, struct object_ent if (!usable_delta) { if (oe_type(entry) == OBJ_BLOB && oe_size_greater_than(&to_pack, entry, big_file_threshold) && - (st = open_istream(&entry->idx.oid, &type, &size, NULL)) != NULL) + (st = open_istream(the_repository, &entry->idx.oid, &type, + &size, NULL)) != NULL) buf = NULL; else { buf = read_object_file(&entry->idx.oid, &type, &size); diff --git a/sha1-file.c b/sha1-file.c index 188de57634..89ab986205 100644 --- a/sha1-file.c +++ b/sha1-file.c @@ -986,7 +986,7 @@ int check_object_signature(const struct object_id *oid, void *map, return !oideq(oid, &real_oid) ? -1 : 0; } - st = open_istream(oid, &obj_type, &size, NULL); + st = open_istream(the_repository, oid, &obj_type, &size, NULL); if (!st) return -1; diff --git a/streaming.c b/streaming.c index fcd6303219..800f07a52c 100644 --- a/streaming.c +++ b/streaming.c @@ -16,6 +16,7 @@ enum input_source { }; typedef int (*open_istream_fn)(struct git_istream *, + struct repository *, struct object_info *, const struct object_id *, enum object_type *); @@ -29,8 +30,8 @@ struct stream_vtbl { #define open_method_decl(name) \ int open_istream_ ##name \ - (struct git_istream *st, struct object_info *oi, \ - const struct object_id *oid, \ + (struct git_istream *st, struct repository *r, \ + struct object_info *oi, const struct object_id *oid, \ enum object_type *type) #define close_method_decl(name) \ @@ -108,7 +109,8 @@ ssize_t read_istream(struct git_istream *st, void *buf, size_t sz) return st->vtbl->read(st, buf, sz); } -static enum input_source istream_source(const struct object_id *oid, +static enum input_source istream_source(struct repository *r, + const struct object_id *oid, enum object_type *type, struct object_info *oi) { @@ -117,7 +119,7 @@ static enum input_source istream_source(const struct object_id *oid, oi->typep = type; oi->sizep = &size; - status = oid_object_info_extended(the_repository, oid, oi, 0); + status = oid_object_info_extended(r, oid, oi, 0); if (status < 0) return stream_error; @@ -133,22 +135,23 @@ static enum input_source istream_source(const struct object_id *oid, } } -struct git_istream *open_istream(const struct object_id *oid, +struct git_istream *open_istream(struct repository *r, + const struct object_id *oid, enum object_type *type, unsigned long *size, struct stream_filter *filter) { struct git_istream *st; struct object_info oi = OBJECT_INFO_INIT; - const struct object_id *real = lookup_replace_object(the_repository, oid); - enum input_source src = istream_source(real, type, &oi); + const struct object_id *real = lookup_replace_object(r, oid); + enum input_source src = istream_source(r, real, type, &oi); if (src < 0) return NULL; st = xmalloc(sizeof(*st)); - if (open_istream_tbl[src](st, &oi, real, type)) { - if (open_istream_incore(st, &oi, real, type)) { + if (open_istream_tbl[src](st, r, &oi, real, type)) { + if (open_istream_incore(st, r, &oi, real, type)) { free(st); return NULL; } @@ -338,8 +341,7 @@ static struct stream_vtbl loose_vtbl = { static open_method_decl(loose) { - st->u.loose.mapped = map_loose_object(the_repository, - oid, &st->u.loose.mapsize); + st->u.loose.mapped = map_loose_object(r, oid, &st->u.loose.mapsize); if (!st->u.loose.mapped) return -1; if ((unpack_loose_header(&st->z, @@ -499,7 +501,7 @@ static struct stream_vtbl incore_vtbl = { static open_method_decl(incore) { - st->u.incore.buf = read_object_file_extended(the_repository, oid, type, &st->size, 0); + st->u.incore.buf = read_object_file_extended(r, oid, type, &st->size, 0); st->u.incore.read_ptr = 0; st->vtbl = &incore_vtbl; @@ -520,7 +522,7 @@ int stream_blob_to_fd(int fd, const struct object_id *oid, struct stream_filter ssize_t kept = 0; int result = -1; - st = open_istream(oid, &type, &sz, filter); + st = open_istream(the_repository, oid, &type, &sz, filter); if (!st) { if (filter) free_stream_filter(filter); diff --git a/streaming.h b/streaming.h index f465a3cd31..5e4e6acfd0 100644 --- a/streaming.h +++ b/streaming.h @@ -8,7 +8,9 @@ /* opaque */ struct git_istream; -struct git_istream *open_istream(const struct object_id *, enum object_type *, unsigned long *, struct stream_filter *); +struct git_istream *open_istream(struct repository *, const struct object_id *, + enum object_type *, unsigned long *, + struct stream_filter *); int close_istream(struct git_istream *); ssize_t read_istream(struct git_istream *, void *, size_t); -- cgit v1.2.3 From 7ad5c44d9ce559703245d389aa71c4445dc9359c Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:21 -0300 Subject: sha1-file: pass git_hash_algo to write_object_file_prepare() Allow write_object_file_prepare() to receive arbitrary 'struct git_hash_algo's instead of always using the_hash_algo. The added parameter will be used in the next commit to make hash_object_file() be able to work with arbitrary git_hash_algo's, as well. Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- sha1-file.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/sha1-file.c b/sha1-file.c index 89ab986205..1ca3f9f2b0 100644 --- a/sha1-file.c +++ b/sha1-file.c @@ -1648,7 +1648,8 @@ void *read_object_with_reference(struct repository *r, } } -static void write_object_file_prepare(const void *buf, unsigned long len, +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) { @@ -1658,10 +1659,10 @@ static void write_object_file_prepare(const void *buf, unsigned long len, *hdrlen = xsnprintf(hdr, *hdrlen, "%s %"PRIuMAX , type, (uintmax_t)len)+1; /* Sha1.. */ - the_hash_algo->init_fn(&c); - the_hash_algo->update_fn(&c, hdr, *hdrlen); - the_hash_algo->update_fn(&c, buf, len); - the_hash_algo->final_fn(oid->hash, &c); + algo->init_fn(&c); + algo->update_fn(&c, hdr, *hdrlen); + algo->update_fn(&c, buf, len); + algo->final_fn(oid->hash, &c); } /* @@ -1719,7 +1720,8 @@ int hash_object_file(const void *buf, unsigned long len, const char *type, { char hdr[MAX_HEADER_LEN]; int hdrlen = sizeof(hdr); - write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen); + write_object_file_prepare(the_hash_algo, buf, len, type, oid, hdr, + &hdrlen); return 0; } @@ -1877,7 +1879,8 @@ int write_object_file(const void *buf, unsigned long len, const char *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(buf, len, type, oid, hdr, &hdrlen); + write_object_file_prepare(the_hash_algo, buf, len, type, oid, hdr, + &hdrlen); if (freshen_packed_object(oid) || freshen_loose_object(oid)) return 0; return write_loose_object(oid, hdr, hdrlen, buf, len, 0); @@ -1893,7 +1896,8 @@ int hash_object_file_literally(const void *buf, unsigned long len, /* type string, SP, %lu of the length plus NUL must fit this */ hdrlen = strlen(type) + MAX_HEADER_LEN; header = xmalloc(hdrlen); - write_object_file_prepare(buf, len, type, oid, header, &hdrlen); + write_object_file_prepare(the_hash_algo, buf, len, type, oid, header, + &hdrlen); if (!(flags & HASH_WRITE_OBJECT)) goto cleanup; -- cgit v1.2.3 From 2dcde20e1c55fc2e3f9e9e6d48e93c39ec5661d2 Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:22 -0300 Subject: sha1-file: pass git_hash_algo to hash_object_file() Allow hash_object_file() to work on arbitrary repos by introducing a git_hash_algo parameter. Change callers which have a struct repository pointer in their scope to pass on the git_hash_algo from the said repo. For all other callers, pass on the_hash_algo, which was already being used internally at hash_object_file(). This functionality will be used in the following patch to make check_object_signature() be able to work on arbitrary repos (which, in turn, will be used to fix an inconsistency at object.c:parse_object()). Signed-off-by: Matheus Tavares Signed-off-by: Junio C Hamano --- apply.c | 6 ++++-- builtin/index-pack.c | 2 +- builtin/replace.c | 3 ++- builtin/unpack-objects.c | 3 ++- cache-tree.c | 9 ++++++--- convert.c | 2 +- diffcore-rename.c | 4 ++-- dir.c | 4 ++-- log-tree.c | 3 ++- object-store.h | 5 +++-- sha1-file.c | 20 +++++++++++--------- 11 files changed, 36 insertions(+), 25 deletions(-) diff --git a/apply.c b/apply.c index fab44322c5..bdc008fae2 100644 --- a/apply.c +++ b/apply.c @@ -3157,7 +3157,8 @@ static int apply_binary(struct apply_state *state, * See if the old one matches what the patch * applies to. */ - hash_object_file(img->buf, img->len, blob_type, &oid); + hash_object_file(the_hash_algo, img->buf, img->len, blob_type, + &oid); if (strcmp(oid_to_hex(&oid), patch->old_oid_prefix)) return error(_("the patch applies to '%s' (%s), " "which does not match the " @@ -3202,7 +3203,8 @@ static int apply_binary(struct apply_state *state, name); /* verify that the result matches */ - hash_object_file(img->buf, img->len, blob_type, &oid); + hash_object_file(the_hash_algo, img->buf, img->len, blob_type, + &oid); if (strcmp(oid_to_hex(&oid), patch->new_oid_prefix)) return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"), name, patch->new_oid_prefix, oid_to_hex(&oid)); diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 7a08da8401..0183610a76 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -949,7 +949,7 @@ static void resolve_delta(struct object_entry *delta_obj, free(delta_data); if (!result->data) bad_object(delta_obj->idx.offset, _("failed to apply delta")); - hash_object_file(result->data, result->size, + hash_object_file(the_hash_algo, result->data, result->size, type_name(delta_obj->real_type), &delta_obj->idx.oid); sha1_object(result->data, NULL, result->size, delta_obj->real_type, &delta_obj->idx.oid); diff --git a/builtin/replace.c b/builtin/replace.c index bd92dc63b9..b36d17a657 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -409,7 +409,8 @@ static int check_one_mergetag(struct commit *commit, struct tag *tag; int i; - hash_object_file(extra->value, extra->len, type_name(OBJ_TAG), &tag_oid); + hash_object_file(the_hash_algo, extra->value, extra->len, + type_name(OBJ_TAG), &tag_oid); tag = lookup_tag(the_repository, &tag_oid); if (!tag) return error(_("bad mergetag in commit '%s'"), ref); diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 9100964667..dd4a75e030 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -265,7 +265,8 @@ static void write_object(unsigned nr, enum object_type type, } else { struct object *obj; int eaten; - hash_object_file(buf, size, type_name(type), &obj_list[nr].oid); + hash_object_file(the_hash_algo, buf, size, type_name(type), + &obj_list[nr].oid); added_object(nr, type, buf, size); obj = parse_object_buffer(the_repository, &obj_list[nr].oid, type, size, buf, diff --git a/cache-tree.c b/cache-tree.c index 8c51a15751..a537a806c1 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -407,13 +407,15 @@ static int update_one(struct cache_tree *it, if (repair) { struct object_id oid; - hash_object_file(buffer.buf, buffer.len, tree_type, &oid); + hash_object_file(the_hash_algo, buffer.buf, buffer.len, + tree_type, &oid); if (has_object_file_with_flags(&oid, OBJECT_INFO_SKIP_FETCH_OBJECT)) oidcpy(&it->oid, &oid); else to_invalidate = 1; } else if (dryrun) { - hash_object_file(buffer.buf, buffer.len, tree_type, &it->oid); + hash_object_file(the_hash_algo, buffer.buf, buffer.len, + tree_type, &it->oid); } else if (write_object_file(buffer.buf, buffer.len, tree_type, &it->oid)) { strbuf_release(&buffer); @@ -828,7 +830,8 @@ static void verify_one(struct repository *r, strbuf_addf(&tree_buf, "%o %.*s%c", mode, entlen, name, '\0'); strbuf_add(&tree_buf, oid->hash, r->hash_algo->rawsz); } - hash_object_file(tree_buf.buf, tree_buf.len, tree_type, &new_oid); + hash_object_file(r->hash_algo, tree_buf.buf, tree_buf.len, tree_type, + &new_oid); if (!oideq(&new_oid, &it->oid)) BUG("cache-tree for path %.*s does not match. " "Expected %s got %s", len, path->buf, diff --git a/convert.c b/convert.c index 797e0bd0b1..33507ee0a9 100644 --- a/convert.c +++ b/convert.c @@ -1146,7 +1146,7 @@ static int ident_to_worktree(const char *src, size_t len, /* are we "faking" in place editing ? */ if (src == buf->buf) to_free = strbuf_detach(buf, NULL); - hash_object_file(src, len, "blob", &oid); + hash_object_file(the_hash_algo, src, len, "blob", &oid); strbuf_grow(buf, len + cnt * (the_hash_algo->hexsz + 3)); for (;;) { diff --git a/diffcore-rename.c b/diffcore-rename.c index 531d7adeaf..e189f407af 100644 --- a/diffcore-rename.c +++ b/diffcore-rename.c @@ -263,8 +263,8 @@ static unsigned int hash_filespec(struct repository *r, if (!filespec->oid_valid) { if (diff_populate_filespec(r, filespec, 0)) return 0; - hash_object_file(filespec->data, filespec->size, "blob", - &filespec->oid); + hash_object_file(r->hash_algo, filespec->data, filespec->size, + "blob", &filespec->oid); } return oidhash(&filespec->oid); } diff --git a/dir.c b/dir.c index 7d255227b1..512c5d7ea6 100644 --- a/dir.c +++ b/dir.c @@ -1002,8 +1002,8 @@ static int add_patterns(const char *fname, const char *base, int baselen, oidcpy(&oid_stat->oid, &istate->cache[pos]->oid); else - hash_object_file(buf, size, "blob", - &oid_stat->oid); + hash_object_file(the_hash_algo, buf, size, + "blob", &oid_stat->oid); fill_stat_data(&oid_stat->stat, &st); oid_stat->valid = 1; } diff --git a/log-tree.c b/log-tree.c index 4e32638de8..cae38dcc66 100644 --- a/log-tree.c +++ b/log-tree.c @@ -501,7 +501,8 @@ static int show_one_mergetag(struct commit *commit, int status, nth; size_t payload_size, gpg_message_offset; - hash_object_file(extra->value, extra->len, type_name(OBJ_TAG), &oid); + hash_object_file(the_hash_algo, extra->value, extra->len, + type_name(OBJ_TAG), &oid); tag = lookup_tag(the_repository, &oid); if (!tag) return -1; /* error message already given */ diff --git a/object-store.h b/object-store.h index 55ee639350..bb19f4aa99 100644 --- a/object-store.h +++ b/object-store.h @@ -198,8 +198,9 @@ static inline void *repo_read_object_file(struct repository *r, /* Read and unpack an object file into memory, write memory to an object file */ int oid_object_info(struct repository *r, const struct object_id *, unsigned long *); -int hash_object_file(const void *buf, unsigned long len, - const char *type, struct object_id *oid); +int hash_object_file(const struct git_hash_algo *algo, const void *buf, + unsigned long len, const char *type, + struct object_id *oid); int write_object_file(const void *buf, unsigned long len, const char *type, struct object_id *oid); diff --git a/sha1-file.c b/sha1-file.c index 1ca3f9f2b0..46a79e7614 100644 --- a/sha1-file.c +++ b/sha1-file.c @@ -982,7 +982,7 @@ int check_object_signature(const struct object_id *oid, void *map, int hdrlen; if (map) { - hash_object_file(map, size, type, &real_oid); + hash_object_file(the_hash_algo, map, size, type, &real_oid); return !oideq(oid, &real_oid) ? -1 : 0; } @@ -1544,7 +1544,7 @@ int pretend_object_file(void *buf, unsigned long len, enum object_type type, { struct cached_object *co; - hash_object_file(buf, len, type_name(type), oid); + hash_object_file(the_hash_algo, buf, len, type_name(type), oid); if (has_object_file(oid) || find_cached_object(oid)) return 0; ALLOC_GROW(cached_objects, cached_object_nr + 1, cached_object_alloc); @@ -1715,13 +1715,13 @@ static int write_buffer(int fd, const void *buf, size_t len) return 0; } -int hash_object_file(const void *buf, unsigned long len, const char *type, +int hash_object_file(const struct git_hash_algo *algo, const void *buf, + unsigned long len, const char *type, struct object_id *oid) { char hdr[MAX_HEADER_LEN]; int hdrlen = sizeof(hdr); - write_object_file_prepare(the_hash_algo, buf, len, type, oid, hdr, - &hdrlen); + write_object_file_prepare(algo, buf, len, type, oid, hdr, &hdrlen); return 0; } @@ -2008,7 +2008,8 @@ static int index_mem(struct index_state *istate, if (write_object) ret = write_object_file(buf, size, type_name(type), oid); else - ret = hash_object_file(buf, size, type_name(type), oid); + ret = hash_object_file(the_hash_algo, buf, size, + type_name(type), oid); if (re_allocated) free(buf); return ret; @@ -2034,8 +2035,8 @@ static int index_stream_convert_blob(struct index_state *istate, ret = write_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB), oid); else - ret = hash_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB), - oid); + ret = hash_object_file(the_hash_algo, sbuf.buf, sbuf.len, + type_name(OBJ_BLOB), oid); strbuf_release(&sbuf); return ret; } @@ -2153,7 +2154,8 @@ int index_path(struct index_state *istate, struct object_id *oid, if (strbuf_readlink(&sb, path, st->st_size)) return error_errno("readlink(\"%s\")", path); if (!(flags & HASH_WRITE_OBJECT)) - hash_object_file(sb.buf, sb.len, blob_type, oid); + hash_object_file(the_hash_algo, sb.buf, sb.len, + blob_type, oid); else if (write_object_file(sb.buf, sb.len, blob_type, oid)) rc = error(_("%s: failed to insert into database"), path); strbuf_release(&sb); -- cgit v1.2.3 From b98d18858187eb926912d5199533a6d2a14d5007 Mon Sep 17 00:00:00 2001 From: Matheus Tavares Date: Thu, 30 Jan 2020 17:32:23 -0300 Subject: 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 Signed-off-by: Junio C Hamano --- builtin/fast-export.c | 3 ++- builtin/index-pack.c | 5 +++-- builtin/mktag.c | 7 +++++-- cache.h | 3 ++- object.c | 5 +++-- pack-check.c | 2 +- sha1-file.c | 21 +++++++++++---------- 7 files changed, 27 insertions(+), 19 deletions(-) diff --git a/builtin/fast-export.c b/builtin/fast-export.c index dbec4df92b..25386b34d3 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 0183610a76..acdda17d84 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 6fb7dc8578..4982d3a93e 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 cbfaead23a..40ae160991 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 142ef69399..81f5820fc3 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 0fb3b365c7..e4ef71c673 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 46a79e7614..fcedef97d4 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); -- cgit v1.2.3