diff options
| -rw-r--r-- | lib/tsocket/config.mk | 3 | ||||
| -rw-r--r-- | lib/tsocket/tsocket.h | 7 | ||||
| -rw-r--r-- | lib/tsocket/tsocket_sendto.c | 136 |
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; +} |