mirror of
https://github.com/git/git
synced 2024-08-25 02:35:46 +00:00
![brian m. carlson](/assets/img/avatar_default.png)
Convert read_sha1_file to take a pointer to struct object_id and rename it read_object_file. Do the same for read_sha1_file_extended. Convert one use in grep.c to use the new function without any other code change, since the pointer being passed is a void pointer that is already initialized with a pointer to struct object_id. Update the declaration and definitions of the modified functions, and apply the following semantic patch to convert the remaining callers: @@ expression E1, E2, E3; @@ - read_sha1_file(E1.hash, E2, E3) + read_object_file(&E1, E2, E3) @@ expression E1, E2, E3; @@ - read_sha1_file(E1->hash, E2, E3) + read_object_file(E1, E2, E3) @@ expression E1, E2, E3, E4; @@ - read_sha1_file_extended(E1.hash, E2, E3, E4) + read_object_file_extended(&E1, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - read_sha1_file_extended(E1->hash, E2, E3, E4) + read_object_file_extended(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
198 lines
4.5 KiB
C
198 lines
4.5 KiB
C
#include "cache.h"
|
|
#include "tag.h"
|
|
#include "commit.h"
|
|
#include "tree.h"
|
|
#include "blob.h"
|
|
#include "gpg-interface.h"
|
|
|
|
const char *tag_type = "tag";
|
|
|
|
static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags)
|
|
{
|
|
struct signature_check sigc;
|
|
size_t payload_size;
|
|
int ret;
|
|
|
|
memset(&sigc, 0, sizeof(sigc));
|
|
|
|
payload_size = parse_signature(buf, size);
|
|
|
|
if (size == payload_size) {
|
|
if (flags & GPG_VERIFY_VERBOSE)
|
|
write_in_full(1, buf, payload_size);
|
|
return error("no signature found");
|
|
}
|
|
|
|
ret = check_signature(buf, payload_size, buf + payload_size,
|
|
size - payload_size, &sigc);
|
|
|
|
if (!(flags & GPG_VERIFY_OMIT_STATUS))
|
|
print_signature_buffer(&sigc, flags);
|
|
|
|
signature_check_clear(&sigc);
|
|
return ret;
|
|
}
|
|
|
|
int gpg_verify_tag(const struct object_id *oid, const char *name_to_report,
|
|
unsigned flags)
|
|
{
|
|
enum object_type type;
|
|
char *buf;
|
|
unsigned long size;
|
|
int ret;
|
|
|
|
type = oid_object_info(oid, NULL);
|
|
if (type != OBJ_TAG)
|
|
return error("%s: cannot verify a non-tag object of type %s.",
|
|
name_to_report ?
|
|
name_to_report :
|
|
find_unique_abbrev(oid, DEFAULT_ABBREV),
|
|
type_name(type));
|
|
|
|
buf = read_object_file(oid, &type, &size);
|
|
if (!buf)
|
|
return error("%s: unable to read file.",
|
|
name_to_report ?
|
|
name_to_report :
|
|
find_unique_abbrev(oid, DEFAULT_ABBREV));
|
|
|
|
ret = run_gpg_verify(buf, size, flags);
|
|
|
|
free(buf);
|
|
return ret;
|
|
}
|
|
|
|
struct object *deref_tag(struct object *o, const char *warn, int warnlen)
|
|
{
|
|
while (o && o->type == OBJ_TAG)
|
|
if (((struct tag *)o)->tagged)
|
|
o = parse_object(&((struct tag *)o)->tagged->oid);
|
|
else
|
|
o = NULL;
|
|
if (!o && warn) {
|
|
if (!warnlen)
|
|
warnlen = strlen(warn);
|
|
error("missing object referenced by '%.*s'", warnlen, warn);
|
|
}
|
|
return o;
|
|
}
|
|
|
|
struct object *deref_tag_noverify(struct object *o)
|
|
{
|
|
while (o && o->type == OBJ_TAG) {
|
|
o = parse_object(&o->oid);
|
|
if (o && o->type == OBJ_TAG && ((struct tag *)o)->tagged)
|
|
o = ((struct tag *)o)->tagged;
|
|
else
|
|
o = NULL;
|
|
}
|
|
return o;
|
|
}
|
|
|
|
struct tag *lookup_tag(const struct object_id *oid)
|
|
{
|
|
struct object *obj = lookup_object(oid->hash);
|
|
if (!obj)
|
|
return create_object(oid->hash, alloc_tag_node());
|
|
return object_as_type(obj, OBJ_TAG, 0);
|
|
}
|
|
|
|
static timestamp_t parse_tag_date(const char *buf, const char *tail)
|
|
{
|
|
const char *dateptr;
|
|
|
|
while (buf < tail && *buf++ != '>')
|
|
/* nada */;
|
|
if (buf >= tail)
|
|
return 0;
|
|
dateptr = buf;
|
|
while (buf < tail && *buf++ != '\n')
|
|
/* nada */;
|
|
if (buf >= tail)
|
|
return 0;
|
|
/* dateptr < buf && buf[-1] == '\n', so parsing will stop at buf-1 */
|
|
return parse_timestamp(dateptr, NULL, 10);
|
|
}
|
|
|
|
int parse_tag_buffer(struct tag *item, const void *data, unsigned long size)
|
|
{
|
|
struct object_id oid;
|
|
char type[20];
|
|
const char *bufptr = data;
|
|
const char *tail = bufptr + size;
|
|
const char *nl;
|
|
|
|
if (item->object.parsed)
|
|
return 0;
|
|
item->object.parsed = 1;
|
|
|
|
if (size < GIT_SHA1_HEXSZ + 24)
|
|
return -1;
|
|
if (memcmp("object ", bufptr, 7) || parse_oid_hex(bufptr + 7, &oid, &bufptr) || *bufptr++ != '\n')
|
|
return -1;
|
|
|
|
if (!starts_with(bufptr, "type "))
|
|
return -1;
|
|
bufptr += 5;
|
|
nl = memchr(bufptr, '\n', tail - bufptr);
|
|
if (!nl || sizeof(type) <= (nl - bufptr))
|
|
return -1;
|
|
memcpy(type, bufptr, nl - bufptr);
|
|
type[nl - bufptr] = '\0';
|
|
bufptr = nl + 1;
|
|
|
|
if (!strcmp(type, blob_type)) {
|
|
item->tagged = (struct object *)lookup_blob(&oid);
|
|
} else if (!strcmp(type, tree_type)) {
|
|
item->tagged = (struct object *)lookup_tree(&oid);
|
|
} else if (!strcmp(type, commit_type)) {
|
|
item->tagged = (struct object *)lookup_commit(&oid);
|
|
} else if (!strcmp(type, tag_type)) {
|
|
item->tagged = (struct object *)lookup_tag(&oid);
|
|
} else {
|
|
error("Unknown type %s", type);
|
|
item->tagged = NULL;
|
|
}
|
|
|
|
if (bufptr + 4 < tail && starts_with(bufptr, "tag "))
|
|
; /* good */
|
|
else
|
|
return -1;
|
|
bufptr += 4;
|
|
nl = memchr(bufptr, '\n', tail - bufptr);
|
|
if (!nl)
|
|
return -1;
|
|
item->tag = xmemdupz(bufptr, nl - bufptr);
|
|
bufptr = nl + 1;
|
|
|
|
if (bufptr + 7 < tail && starts_with(bufptr, "tagger "))
|
|
item->date = parse_tag_date(bufptr, tail);
|
|
else
|
|
item->date = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int parse_tag(struct tag *item)
|
|
{
|
|
enum object_type type;
|
|
void *data;
|
|
unsigned long size;
|
|
int ret;
|
|
|
|
if (item->object.parsed)
|
|
return 0;
|
|
data = read_object_file(&item->object.oid, &type, &size);
|
|
if (!data)
|
|
return error("Could not read %s",
|
|
oid_to_hex(&item->object.oid));
|
|
if (type != OBJ_TAG) {
|
|
free(data);
|
|
return error("Object %s not a tag",
|
|
oid_to_hex(&item->object.oid));
|
|
}
|
|
ret = parse_tag_buffer(item, data, size);
|
|
free(data);
|
|
return ret;
|
|
}
|