static git_filter *create_reverse_filter(const char *attrs)
{
git_filter *filter = git__calloc(1, sizeof(git_filter));
cl_assert(filter);
filter->version = GIT_FILTER_VERSION;
filter->attributes = attrs;
filter->shutdown = reverse_filter_free;
filter->apply = reverse_filter_apply;
return filter;
}
static git_pack *alloc_pack(const char *pack_name)
{
git_pack *p = git__calloc(1, sizeof(*p));
if (!p)
return NULL;
gitlck_init(&p->lock);
strcpy(p->pack_name, pack_name);
p->refcnt = 1;
p->pack_fd = -1;
return p;
}
static git_filter *create_bitflip_filter(void)
{
git_filter *filter = git__calloc(1, sizeof(git_filter));
cl_assert(filter);
filter->version = GIT_FILTER_VERSION;
filter->attributes = "+bitflip";
filter->shutdown = bitflip_filter_free;
filter->apply = bitflip_filter_apply;
return filter;
}
int git_indexer_new(
git_indexer **out,
const char *prefix,
unsigned int mode,
git_odb *odb,
git_transfer_progress_cb progress_cb,
void *progress_payload)
{
git_indexer *idx;
git_buf path = GIT_BUF_INIT, tmp_path = GIT_BUF_INIT;
static const char suff[] = "/pack";
int error, fd = -1;
idx = (git_indexer *) git__calloc(1, sizeof(git_indexer));
GITERR_CHECK_ALLOC(idx);
idx->odb = odb;
idx->progress_cb = progress_cb;
idx->progress_payload = progress_payload;
idx->mode = mode ? mode : GIT_PACK_FILE_MODE;
git_hash_ctx_init(&idx->hash_ctx);
git_hash_ctx_init(&idx->trailer);
error = git_buf_joinpath(&path, prefix, suff);
if (error < 0)
goto cleanup;
fd = git_futils_mktmp(&tmp_path, git_buf_cstr(&path), idx->mode);
git_buf_free(&path);
if (fd < 0)
goto cleanup;
error = git_packfile_alloc(&idx->pack, git_buf_cstr(&tmp_path));
git_buf_free(&tmp_path);
if (error < 0)
goto cleanup;
idx->pack->mwf.fd = fd;
if ((error = git_mwindow_file_register(&idx->pack->mwf)) < 0)
goto cleanup;
*out = idx;
return 0;
cleanup:
if (fd != -1)
p_close(fd);
git_buf_free(&path);
git_buf_free(&tmp_path);
git__free(idx);
return -1;
}
static git_hashsig *hashsig_alloc(git_hashsig_option_t opts)
{
git_hashsig *sig = git__calloc(1, sizeof(git_hashsig));
if (!sig)
return NULL;
hashsig_heap_init(&sig->mins, hashsig_cmp_min);
hashsig_heap_init(&sig->maxs, hashsig_cmp_max);
sig->opt = opts;
return sig;
}
static git_reference *alloc_ref(const char *name)
{
git_reference *ref;
size_t namelen = strlen(name);
if ((ref = git__calloc(1, sizeof(git_reference) + namelen + 1)) == NULL)
return NULL;
memcpy(ref->name, name, namelen + 1);
return ref;
}
static git_reference *alloc_ref(const char *name)
{
git_reference *ref = NULL;
size_t namelen = strlen(name), reflen;
if (!GIT_ADD_SIZET_OVERFLOW(&reflen, sizeof(git_reference), namelen) &&
!GIT_ADD_SIZET_OVERFLOW(&reflen, reflen, 1) &&
(ref = git__calloc(1, reflen)) != NULL)
memcpy(ref->name, name, namelen + 1);
return ref;
}
static BIO_METHOD* BIO_meth_new(int type, const char *name)
{
BIO_METHOD *meth = git__calloc(1, sizeof(BIO_METHOD));
if (!meth) {
return NULL;
}
meth->type = type;
meth->name = name;
return meth;
}
int git_stransport_stream_new(git_stream **out, const char *host, const char *port)
{
stransport_stream *st;
int error;
OSStatus ret;
assert(out && host);
st = git__calloc(1, sizeof(stransport_stream));
GITERR_CHECK_ALLOC(st);
#ifdef GIT_CURL
error = git_curl_stream_new(&st->io, host, port);
#else
error = git_socket_stream_new(&st->io, host, port);
#endif
if (error < 0){
git__free(st);
return error;
}
st->ctx = SSLCreateContext(NULL, kSSLClientSide, kSSLStreamType);
if (!st->ctx) {
giterr_set(GITERR_NET, "failed to create SSL context");
return -1;
}
if ((ret = SSLSetIOFuncs(st->ctx, read_cb, write_cb)) != noErr ||
(ret = SSLSetConnection(st->ctx, st->io)) != noErr ||
(ret = SSLSetSessionOption(st->ctx, kSSLSessionOptionBreakOnServerAuth, true)) != noErr ||
(ret = SSLSetProtocolVersionMin(st->ctx, kTLSProtocol1)) != noErr ||
(ret = SSLSetProtocolVersionMax(st->ctx, kTLSProtocol12)) != noErr ||
(ret = SSLSetPeerDomainName(st->ctx, host, strlen(host))) != noErr) {
git_stream_free((git_stream *)st);
return stransport_error(ret);
}
st->parent.version = GIT_STREAM_VERSION;
st->parent.encrypted = 1;
st->parent.proxy_support = git_stream_supports_proxy(st->io);
st->parent.connect = stransport_connect;
st->parent.certificate = stransport_certificate;
st->parent.set_proxy = stransport_set_proxy;
st->parent.read = stransport_read;
st->parent.write = stransport_write;
st->parent.close = stransport_close;
st->parent.free = stransport_free;
*out = (git_stream *) st;
return 0;
}
static int git_diff_driver_builtin(
git_diff_driver **out,
git_diff_driver_registry *reg,
const char *driver_name)
{
int error = 0;
git_diff_driver_definition *ddef = NULL;
git_diff_driver *drv = NULL;
size_t namelen, idx;
for (idx = 0; idx < ARRAY_SIZE(builtin_defs); ++idx) {
if (!strcasecmp(driver_name, builtin_defs[idx].name)) {
ddef = &builtin_defs[idx];
break;
}
}
if (!ddef)
goto done;
namelen = strlen(ddef->name);
drv = git__calloc(1, sizeof(git_diff_driver) + namelen + 1);
GITERR_CHECK_ALLOC(drv);
drv->type = DIFF_DRIVER_PATTERNLIST;
memcpy(drv->name, ddef->name, namelen);
if (ddef->fns &&
(error = diff_driver_add_patterns(
drv, ddef->fns, ddef->flags | REG_EXTENDED)) < 0)
goto done;
if (ddef->words &&
(error = regcomp(
&drv->word_pattern, ddef->words, ddef->flags | REG_EXTENDED)))
{
error = giterr_set_regex(&drv->word_pattern, error);
goto done;
}
git_strmap_insert(reg->drivers, drv->name, drv, error);
if (error > 0)
error = 0;
done:
if (error && drv)
git_diff_driver_free(drv);
else
*out = drv;
return error;
}
/* Try to store the delta so we can try to resolve it later */
static int store_delta(git_indexer *idx)
{
struct delta_info *delta;
delta = (delta_info*) git__calloc(1, sizeof(struct delta_info));
GITERR_CHECK_ALLOC(delta);
delta->delta_off = idx->entry_start;
if (git_vector_insert(&idx->deltas, delta) < 0)
return -1;
return 0;
}
int git_transaction_config_new(git_transaction **out, git_config *cfg)
{
git_transaction *tx;
assert(out && cfg);
tx = git__calloc(1, sizeof(git_transaction));
GITERR_CHECK_ALLOC(tx);
tx->type = TRANSACTION_CONFIG;
tx->cfg = cfg;
*out = tx;
return 0;
}
static git_odb_object *odb_object__alloc(const git_oid *oid, git_rawobj *source)
{
git_odb_object *object = (git_odb_object *) git__calloc(1, sizeof(git_odb_object));
if (object != NULL) {
git_oid_cpy(&object->cached.oid, oid);
object->cached.type = source->type;
object->cached.size = source->len;
object->buffer = source->data;
}
return object;
}
static git_odb_backend *new_backend(size_t position)
{
fake_backend *b;
b = git__calloc(1, sizeof(fake_backend));
if (b == NULL)
return NULL;
b->base.free = (void (*)(git_odb_backend *)) git__free;
b->base.version = GIT_ODB_BACKEND_VERSION;
b->position = position;
return (git_odb_backend *)b;
}
static void init_ssl(void)
{
#ifdef GIT_SSL
SSL_load_error_strings();
OpenSSL_add_ssl_algorithms();
/*
* Load SSLv{2,3} and TLSv1 so that we can talk with servers
* which use the SSL hellos, which are often used for
* compatibility. We then disable SSL so we only allow OpenSSL
* to speak TLSv1 to perform the encryption itself.
*/
git__ssl_ctx = SSL_CTX_new(SSLv23_method());
SSL_CTX_set_options(git__ssl_ctx,
SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3
/* Older OpenSSL and MacOS OpenSSL doesn't have this */
# ifdef SSL_OP_NO_COMPRESSION
| SSL_OP_NO_COMPRESSION
# endif
);
SSL_CTX_set_mode(git__ssl_ctx, SSL_MODE_AUTO_RETRY);
SSL_CTX_set_verify(git__ssl_ctx, SSL_VERIFY_NONE, NULL);
if (!SSL_CTX_set_default_verify_paths(git__ssl_ctx)) {
SSL_CTX_free(git__ssl_ctx);
git__ssl_ctx = NULL;
}
# ifdef GIT_THREADS
{
int num_locks, i;
num_locks = CRYPTO_num_locks();
openssl_locks = git__calloc(num_locks, sizeof(git_mutex));
if (openssl_locks == NULL) {
SSL_CTX_free(git__ssl_ctx);
git__ssl_ctx = NULL;
}
for (i = 0; i < num_locks; i++) {
if (git_mutex_init(&openssl_locks[i]) != 0) {
SSL_CTX_free(git__ssl_ctx);
git__ssl_ctx = NULL;
}
}
CRYPTO_set_locking_callback(openssl_locking_function);
}
git__on_shutdown(shutdown_ssl);
# endif
#endif
}
static git_filter *create_wildcard_filter(void)
{
git_filter *filter = git__calloc(1, sizeof(git_filter));
cl_assert(filter);
filter->version = GIT_FILTER_VERSION;
filter->attributes = "filter=*";
filter->check = wildcard_filter_check;
filter->apply = wildcard_filter_apply;
filter->cleanup = wildcard_filter_cleanup;
filter->shutdown = wildcard_filter_free;
return filter;
}
git_filter *git_crlf_filter_new(void)
{
struct crlf_filter *f = git__calloc(1, sizeof(struct crlf_filter));
f->f.version = GIT_FILTER_VERSION;
f->f.attributes = "crlf eol text";
f->f.initialize = NULL;
f->f.shutdown = git_filter_free;
f->f.check = crlf_check;
f->f.apply = crlf_apply;
f->f.cleanup = crlf_cleanup;
return (git_filter *)f;
}
static int tree_parse_buffer(git_tree *tree, const char *buffer, const char *buffer_end)
{
int error = GIT_SUCCESS;
if (git_vector_init(&tree->entries, DEFAULT_TREE_SIZE, entry_sort_cmp) < GIT_SUCCESS)
return GIT_ENOMEM;
while (buffer < buffer_end) {
git_tree_entry *entry;
int tmp;
entry = git__calloc(1, sizeof(git_tree_entry));
if (entry == NULL) {
error = GIT_ENOMEM;
break;
}
if (git_vector_insert(&tree->entries, entry) < GIT_SUCCESS)
return GIT_ENOMEM;
if (git__strtol32(&tmp, buffer, &buffer, 8) < GIT_SUCCESS ||
!buffer || !valid_attributes(tmp))
return git__throw(GIT_EOBJCORRUPTED, "Failed to parse tree. Can't parse attributes");
entry->attr = tmp;
if (*buffer++ != ' ') {
error = git__throw(GIT_EOBJCORRUPTED, "Failed to parse tree. Object it corrupted");
break;
}
if (memchr(buffer, 0, buffer_end - buffer) == NULL) {
error = git__throw(GIT_EOBJCORRUPTED, "Failed to parse tree. Object it corrupted");
break;
}
entry->filename = git__strdup(buffer);
entry->filename_len = strlen(buffer);
while (buffer < buffer_end && *buffer != 0)
buffer++;
buffer++;
git_oid_fromraw(&entry->oid, (const unsigned char *)buffer);
buffer += GIT_OID_RAWSZ;
}
return error == GIT_SUCCESS ? GIT_SUCCESS : git__rethrow(error, "Failed to parse buffer");
}
git_diff_driver_registry *git_diff_driver_registry_new()
{
git_diff_driver_registry *reg =
git__calloc(1, sizeof(git_diff_driver_registry));
if (!reg)
return NULL;
if (git_strmap_alloc(®->drivers) < 0) {
git_diff_driver_registry_free(reg);
return NULL;
}
return reg;
}
int git_odb_new(git_odb **out)
{
git_odb *db = git__calloc(1, sizeof(*db));
if (!db)
return GIT_ENOMEM;
if (git_vector_init(&db->backends, 4, backend_sort_cmp, NULL) < 0) {
free(db);
return GIT_ENOMEM;
}
*out = db;
return GIT_SUCCESS;
}
int git_reader_for_tree(git_reader **out, git_tree *tree)
{
tree_reader *reader;
assert(out && tree);
reader = git__calloc(1, sizeof(tree_reader));
GITERR_CHECK_ALLOC(reader);
reader->reader.read = tree_reader_read;
reader->tree = tree;
*out = (git_reader *)reader;
return 0;
}
int git_odb_new(git_odb **out)
{
git_odb *db = (git_odb*) git__calloc(1, sizeof(*db));
GITERR_CHECK_ALLOC(db);
if (git_cache_init(&db->own_cache) < 0 ||
git_vector_init(&db->backends, 4, backend_sort_cmp) < 0) {
git__free(db);
return -1;
}
*out = db;
GIT_REFCOUNT_INC(db);
return 0;
}
int git_cred_default_new(git_cred **cred)
{
git_cred_default *c;
assert(cred);
c = git__calloc(1, sizeof(git_cred_default));
GITERR_CHECK_ALLOC(c);
c->credtype = GIT_CREDTYPE_DEFAULT;
c->free = default_free;
*cred = c;
return 0;
}
int git_refdb_new(git_refdb **out, git_repository *repo)
{
git_refdb *db;
assert(out && repo);
db = git__calloc(1, sizeof(*db));
GITERR_CHECK_ALLOC(db);
db->repo = repo;
*out = db;
GIT_REFCOUNT_INC(db);
return 0;
}
int git_openssl_stream_new(git_stream **out, const char *host, const char *port)
{
int error;
openssl_stream *st;
st = git__calloc(1, sizeof(openssl_stream));
GITERR_CHECK_ALLOC(st);
st->io = NULL;
#ifdef GIT_CURL
error = git_curl_stream_new(&st->io, host, port);
#else
error = git_socket_stream_new(&st->io, host, port);
#endif
if (error < 0)
goto out_err;
st->ssl = SSL_new(git__ssl_ctx);
if (st->ssl == NULL) {
giterr_set(GITERR_SSL, "failed to create ssl object");
error = -1;
goto out_err;
}
st->host = git__strdup(host);
GITERR_CHECK_ALLOC(st->host);
st->parent.version = GIT_STREAM_VERSION;
st->parent.encrypted = 1;
st->parent.proxy_support = git_stream_supports_proxy(st->io);
st->parent.connect = openssl_connect;
st->parent.certificate = openssl_certificate;
st->parent.set_proxy = openssl_set_proxy;
st->parent.read = openssl_read;
st->parent.write = openssl_write;
st->parent.close = openssl_close;
st->parent.free = openssl_free;
*out = (git_stream *) st;
return 0;
out_err:
git_stream_free(st->io);
git__free(st);
return error;
}
int git_reflog_append(git_reflog *reflog, const git_oid *new_oid, const git_signature *committer, const char *msg)
{
git_reflog_entry *entry;
const git_reflog_entry *previous;
const char *newline;
assert(reflog && new_oid && committer);
entry = git__calloc(1, sizeof(git_reflog_entry));
GITERR_CHECK_ALLOC(entry);
if ((git_signature_dup(&entry->committer, committer)) < 0)
goto cleanup;
if (msg != NULL) {
if ((entry->msg = git__strdup(msg)) == NULL)
goto cleanup;
newline = strchr(msg, '\n');
if (newline) {
if (newline[1] != '\0') {
giterr_set(GITERR_INVALID, "Reflog message cannot contain newline");
goto cleanup;
}
entry->msg[newline - msg] = '\0';
}
}
previous = git_reflog_entry_byindex(reflog, 0);
if (previous == NULL)
git_oid_fromstr(&entry->oid_old, GIT_OID_HEX_ZERO);
else
git_oid_cpy(&entry->oid_old, &previous->oid_cur);
git_oid_cpy(&entry->oid_cur, new_oid);
if (git_vector_insert(&reflog->entries, entry) < 0)
goto cleanup;
return 0;
cleanup:
git_reflog_entry__free(entry);
return -1;
}
git_filter *git_filter_filter_new(LPCWSTR shexepath, LPWSTR pEnv)
{
struct filter_filter *f = git__calloc(1, sizeof(struct filter_filter));
f->f.version = GIT_FILTER_VERSION;
f->f.attributes = "filter";
f->f.initialize = NULL;
f->f.shutdown = filter_free;
f->f.check = filter_check;
f->f.apply = filter_apply;
f->f.cleanup = filter_cleanup;
f->shexepath = wcsdup(shexepath);
f->pEnv = pEnv;
return (git_filter *)f;
}
/**
* git_push_status_foreach callback that records status entries.
*/
static int record_push_status_cb(const char *ref, const char *msg, void *payload)
{
record_callbacks_data *data = (record_callbacks_data *) payload;
push_status *s;
cl_assert(s = git__calloc(1, sizeof(*s)));
if (ref)
cl_assert(s->ref = git__strdup(ref));
s->success = (msg == NULL);
if (msg)
cl_assert(s->msg = git__strdup(msg));
git_vector_insert(&data->statuses, s);
return 0;
}
static git_repository *repository_alloc(void)
{
git_repository *repo = (git_repository *) git__calloc(1, sizeof(git_repository));
if (!repo)
return NULL;
if (git_cache_init(&repo->objects) < 0) {
git__free(repo);
return NULL;
}
/* set all the entries in the cvar cache to `unset` */
git_repository__cvar_cache_clear(repo);
return repo;
}
int git_curl_stream_new(git_stream **out, const char *host, const char *port)
{
curl_stream *st;
CURL *handle;
int iport = 0, error;
st = git__calloc(1, sizeof(curl_stream));
GITERR_CHECK_ALLOC(st);
handle = curl_easy_init();
if (handle == NULL) {
giterr_set(GITERR_NET, "failed to create curl handle");
git__free(st);
return -1;
}
if ((error = git__strtol32(&iport, port, NULL, 10)) < 0) {
git__free(st);
return error;
}
curl_easy_setopt(handle, CURLOPT_URL, host);
curl_easy_setopt(handle, CURLOPT_ERRORBUFFER, st->curl_error);
curl_easy_setopt(handle, CURLOPT_PORT, iport);
curl_easy_setopt(handle, CURLOPT_CONNECT_ONLY, 1);
curl_easy_setopt(handle, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(handle, CURLOPT_CERTINFO, 1);
curl_easy_setopt(handle, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_easy_setopt(handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
/* curl_easy_setopt(handle, CURLOPT_VERBOSE, 1); */
st->parent.version = GIT_STREAM_VERSION;
st->parent.encrypted = 0; /* we don't encrypt ourselves */
st->parent.proxy_support = 1;
st->parent.connect = curls_connect;
st->parent.certificate = curls_certificate;
st->parent.set_proxy = curls_set_proxy;
st->parent.read = curls_read;
st->parent.write = curls_write;
st->parent.close = curls_close;
st->parent.free = curls_free;
st->handle = handle;
*out = (git_stream *) st;
return 0;
}
