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authorStefan Metzmacher <metze@samba.org>2009-03-10 21:12:31 +0100
committerStefan Metzmacher <metze@samba.org>2009-03-19 16:25:54 +0100
commit9ed7a45c88d9daeedf818b56ecefd6ce58fcce36 (patch)
tree3585a385439e0a78f02234a22bc394e5a92ba1d9 /lib
parentccfd6a6e39ab999df0eba0d9e94cc22f1aa6e000 (diff)
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lib/tsocket: add tsocket_sendto_send/recv()
metze
Diffstat (limited to 'lib')
-rw-r--r--lib/tsocket/config.mk3
-rw-r--r--lib/tsocket/tsocket.h7
-rw-r--r--lib/tsocket/tsocket_sendto.c136
3 files changed, 145 insertions, 1 deletions
diff --git a/lib/tsocket/config.mk b/lib/tsocket/config.mk
index 18cb8260e0..cd4225a1d3 100644
--- a/lib/tsocket/config.mk
+++ b/lib/tsocket/config.mk
@@ -5,7 +5,8 @@ LIBTSOCKET_OBJ_FILES = $(addprefix ../lib/tsocket/, \
tsocket.o \
tsocket_helpers.o \
tsocket_bsd.o \
- tsocket_recvfrom.o)
+ tsocket_recvfrom.o \
+ tsocket_sendto.o)
PUBLIC_HEADERS += $(addprefix ../lib/tsocket/, \
tsocket.h\
diff --git a/lib/tsocket/tsocket.h b/lib/tsocket/tsocket.h
index 8cabd4263f..7987571bc3 100644
--- a/lib/tsocket/tsocket.h
+++ b/lib/tsocket/tsocket.h
@@ -172,5 +172,12 @@ ssize_t tsocket_recvfrom_recv(struct tevent_req *req,
uint8_t **buf,
struct tsocket_address **src);
+struct tevent_req *tsocket_sendto_send(struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ const uint8_t *buf,
+ size_t len,
+ const struct tsocket_address *dst);
+ssize_t tsocket_sendto_recv(struct tevent_req *req, int *perrno);
+
#endif /* _TSOCKET_H */
diff --git a/lib/tsocket/tsocket_sendto.c b/lib/tsocket/tsocket_sendto.c
new file mode 100644
index 0000000000..9486374d26
--- /dev/null
+++ b/lib/tsocket/tsocket_sendto.c
@@ -0,0 +1,136 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Stefan Metzmacher 2009
+
+ ** NOTE! The following LGPL license applies to the tevent
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/network.h"
+#include "tsocket.h"
+#include "tsocket_internal.h"
+
+struct tsocket_sendto_state {
+ /* this structs are owned by the caller */
+ struct {
+ struct tsocket_context *sock;
+ const uint8_t *buf;
+ size_t len;
+ const struct tsocket_address *dst;
+ } caller;
+
+ ssize_t ret;
+};
+
+static int tsocket_sendto_state_destructor(struct tsocket_sendto_state *state)
+{
+ if (state->caller.sock) {
+ tsocket_set_writeable_handler(state->caller.sock, NULL, NULL);
+ }
+ ZERO_STRUCT(state->caller);
+
+ return 0;
+}
+
+static void tsocket_sendto_handler(struct tsocket_context *sock,
+ void *private_data);
+
+struct tevent_req *tsocket_sendto_send(struct tsocket_context *sock,
+ TALLOC_CTX *mem_ctx,
+ const uint8_t *buf,
+ size_t len,
+ const struct tsocket_address *dst)
+{
+ struct tevent_req *req;
+ struct tsocket_sendto_state *state;
+ int ret;
+ int err;
+ bool dummy;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct tsocket_sendto_state);
+ if (!req) {
+ return NULL;
+ }
+
+ state->caller.sock = sock;
+ state->caller.buf = buf;
+ state->caller.len = len;
+ state->caller.dst = dst;
+ state->ret = -1;
+
+ talloc_set_destructor(state, tsocket_sendto_state_destructor);
+
+ ret = tsocket_set_writeable_handler(sock,
+ tsocket_sendto_handler,
+ req);
+ err = tsocket_error_from_errno(ret, errno, &dummy);
+ if (tevent_req_error(req, err)) {
+ goto post;
+ }
+
+ return req;
+
+ post:
+ return tevent_req_post(req, sock->event.ctx);
+}
+
+static void tsocket_sendto_handler(struct tsocket_context *sock,
+ void *private_data)
+{
+ struct tevent_req *req = talloc_get_type(private_data,
+ struct tevent_req);
+ struct tsocket_sendto_state *state = tevent_req_data(req,
+ struct tsocket_sendto_state);
+ ssize_t ret;
+ int err;
+ bool retry;
+
+ ret = tsocket_sendto(state->caller.sock,
+ state->caller.buf,
+ state->caller.len,
+ state->caller.dst);
+ err = tsocket_error_from_errno(ret, errno, &retry);
+ if (retry) {
+ /* retry later */
+ return;
+ }
+ if (tevent_req_error(req, err)) {
+ return;
+ }
+
+ state->ret = ret;
+
+ tevent_req_done(req);
+}
+
+ssize_t tsocket_sendto_recv(struct tevent_req *req, int *perrno)
+{
+ struct tsocket_sendto_state *state = tevent_req_data(req,
+ struct tsocket_sendto_state);
+ ssize_t ret;
+
+ ret = tsocket_simple_int_recv(req, perrno);
+ if (ret == 0) {
+ ret = state->ret;
+ }
+
+ tevent_req_received(req);
+ return ret;
+}