* The first three lines are guaranteed to be at least 63 bytes:
* "object <sha1>\n" is 48 bytes, "type tag\n" at 9 bytes is the
* shortest possible type-line, and "tag .\n" at 6 bytes is the
- * shortest single-character-tag line.
- *
- * We also artificially limit the size of the full object to 8kB.
- * Just because I'm a lazy bastard, and if you can't fit a signature
- * in that size, you're doing something wrong.
+ * shortest single-character-tag line.
*/
-/* Some random size */
-#define MAXSIZE (8192)
-
/*
* We refuse to tag something we can't verify. Just because.
*/
static int verify_object(unsigned char *sha1, const char *expected_type)
{
int ret = -1;
- char type[100];
+ enum object_type type;
unsigned long size;
- void *buffer = read_sha1_file(sha1, type, &size);
+ void *buffer = read_sha1_file(sha1, &type, &size);
if (buffer) {
- if (!strcmp(type, expected_type))
- ret = check_sha1_signature(sha1, buffer, size, type);
+ if (type == type_from_string(expected_type))
+ ret = check_sha1_signature(sha1, buffer, size, expected_type);
free(buffer);
}
return ret;
int main(int argc, char **argv)
{
- unsigned long size = 4096;
- char *buffer = xmalloc(size);
+ struct strbuf buf;
unsigned char result_sha1[20];
if (argc != 1)
setup_git_directory();
- if (read_pipe(0, &buffer, &size)) {
- free(buffer);
+ strbuf_init(&buf, 0);
+ if (strbuf_read(&buf, 0, 4096) < 0) {
die("could not read from stdin");
}
/* Verify it for some basic sanity: it needs to start with
"object <sha1>\ntype\ntagger " */
- if (verify_tag(buffer, size) < 0)
+ if (verify_tag(buf.buf, buf.len) < 0)
die("invalid tag signature file");
- if (write_sha1_file(buffer, size, tag_type, result_sha1) < 0)
+ if (write_sha1_file(buf.buf, buf.len, tag_type, result_sha1) < 0)
die("unable to write tag file");
- free(buffer);
-
+ strbuf_release(&buf);
printf("%s\n", sha1_to_hex(result_sha1));
return 0;
}