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-rw-r--r--source4/libcli/smb_composite/fetchfile.c187
1 files changed, 187 insertions, 0 deletions
diff --git a/source4/libcli/smb_composite/fetchfile.c b/source4/libcli/smb_composite/fetchfile.c
new file mode 100644
index 0000000000..9e88fb669d
--- /dev/null
+++ b/source4/libcli/smb_composite/fetchfile.c
@@ -0,0 +1,187 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Volker Lendecke 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+ a composite API for loading a whole file into memory
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
+#include "libcli/smb_composite/smb_composite.h"
+
+enum fetchfile_stage {FETCHFILE_CONNECT,
+ FETCHFILE_READ};
+
+struct fetchfile_state {
+ enum fetchfile_stage stage;
+ struct smb_composite_fetchfile *io;
+ struct composite_context *creq;
+ struct smb_composite_connect *connect;
+ struct smb_composite_loadfile *loadfile;
+};
+
+static void fetchfile_composite_handler(struct composite_context *req);
+
+static NTSTATUS fetchfile_connect(struct composite_context *c,
+ struct smb_composite_fetchfile *io)
+{
+ NTSTATUS status;
+ struct fetchfile_state *state;
+ state = talloc_get_type(c->private_data, struct fetchfile_state);
+
+ status = smb_composite_connect_recv(state->creq, c);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ state->loadfile = talloc(state, struct smb_composite_loadfile);
+ NT_STATUS_HAVE_NO_MEMORY(state->loadfile);
+
+ state->loadfile->in.fname = io->in.filename;
+
+ state->creq = smb_composite_loadfile_send(state->connect->out.tree,
+ state->loadfile);
+ NT_STATUS_HAVE_NO_MEMORY(state->creq);
+
+ state->creq->async.private_data = c;
+ state->creq->async.fn = fetchfile_composite_handler;
+
+ state->stage = FETCHFILE_READ;
+ c->event_ctx = talloc_reference(c, state->creq->event_ctx);
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS fetchfile_read(struct composite_context *c,
+ struct smb_composite_fetchfile *io)
+{
+ NTSTATUS status;
+ struct fetchfile_state *state;
+ state = talloc_get_type(c->private_data, struct fetchfile_state);
+
+ status = smb_composite_loadfile_recv(state->creq, NULL);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ io->out.data = state->loadfile->out.data;
+ io->out.size = state->loadfile->out.size;
+
+ c->state = COMPOSITE_STATE_DONE;
+ if (c->async.fn)
+ c->async.fn(c);
+
+ return NT_STATUS_OK;
+}
+
+static void fetchfile_state_handler(struct composite_context *c)
+{
+ struct fetchfile_state *state;
+ NTSTATUS status;
+
+ state = talloc_get_type(c->private_data, struct fetchfile_state);
+
+ /* when this handler is called, the stage indicates what
+ call has just finished */
+ switch (state->stage) {
+ case FETCHFILE_CONNECT:
+ status = fetchfile_connect(c, state->io);
+ break;
+ case FETCHFILE_READ:
+ status = fetchfile_read(c, state->io);
+ break;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ c->status = status;
+ c->state = COMPOSITE_STATE_ERROR;
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+ }
+}
+
+static void fetchfile_composite_handler(struct composite_context *creq)
+{
+ struct composite_context *c = talloc_get_type(creq->async.private_data,
+ struct composite_context);
+ fetchfile_state_handler(c);
+}
+
+struct composite_context *smb_composite_fetchfile_send(struct smb_composite_fetchfile *io,
+ struct event_context *event_ctx)
+{
+ struct composite_context *c;
+ struct fetchfile_state *state;
+
+ c = talloc_zero(NULL, struct composite_context);
+ if (c == NULL) goto failed;
+
+ state = talloc(c, struct fetchfile_state);
+ if (state == NULL) goto failed;
+
+ state->connect = talloc(state, struct smb_composite_connect);
+ if (state->connect == NULL) goto failed;
+
+ state->io = io;
+
+ state->connect->in.dest_host = io->in.dest_host;
+ state->connect->in.port = io->in.port;
+ state->connect->in.called_name = io->in.called_name;
+ state->connect->in.service = io->in.service;
+ state->connect->in.service_type = io->in.service_type;
+ state->connect->in.credentials = io->in.credentials;
+ state->connect->in.workgroup = io->in.workgroup;
+
+ state->creq = smb_composite_connect_send(state->connect, event_ctx);
+ if (state->creq == NULL) goto failed;
+
+ state->creq->async.private_data = c;
+ state->creq->async.fn = fetchfile_composite_handler;
+
+ c->state = COMPOSITE_STATE_IN_PROGRESS;
+ state->stage = FETCHFILE_CONNECT;
+ c->event_ctx = talloc_reference(c, state->creq->event_ctx);
+ c->private_data = state;
+
+ return c;
+ failed:
+ talloc_free(c);
+ return NULL;
+}
+
+NTSTATUS smb_composite_fetchfile_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct fetchfile_state *state = talloc_get_type(c->private_data, struct fetchfile_state);
+ talloc_steal(mem_ctx, state->io->out.data);
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+NTSTATUS smb_composite_fetchfile(struct smb_composite_fetchfile *io,
+ TALLOC_CTX *mem_ctx)
+{
+ struct composite_context *c = smb_composite_fetchfile_send(io, NULL);
+ return smb_composite_fetchfile_recv(c, mem_ctx);
+}