From 6cfbf2dee130cc36a72d57adea0e9c04bb31f620 Mon Sep 17 00:00:00 2001 From: Jonathan McCrohan Date: Wed, 12 Oct 2011 21:50:48 +0100 Subject: Initial commit --- tests/random-test-server.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 tests/random-test-server.c (limited to 'tests/random-test-server.c') diff --git a/tests/random-test-server.c b/tests/random-test-server.c new file mode 100644 index 0000000..9569fe4 --- /dev/null +++ b/tests/random-test-server.c @@ -0,0 +1,66 @@ +/* + * Copyright © 2008-2010 Stéphane Raimbault + * + * 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 3 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, see . + */ + +#include +#include +#include +#include + +#include + +int main(void) +{ + int socket; + modbus_t *ctx; + modbus_mapping_t *mb_mapping; + + ctx = modbus_new_tcp("127.0.0.1", 1502); + /* modbus_set_debug(ctx, TRUE); */ + + mb_mapping = modbus_mapping_new(500, 500, 500, 500); + if (mb_mapping == NULL) { + fprintf(stderr, "Failed to allocate the mapping: %s\n", + modbus_strerror(errno)); + modbus_free(ctx); + return -1; + } + + socket = modbus_tcp_listen(ctx, 1); + modbus_tcp_accept(ctx, &socket); + + for (;;) { + uint8_t query[MODBUS_TCP_MAX_ADU_LENGTH]; + int rc; + + rc = modbus_receive(ctx, query); + if (rc != -1) { + /* rc is the query size */ + modbus_reply(ctx, query, rc, mb_mapping); + } else { + /* Connection closed by the client or error */ + break; + } + } + + printf("Quit the loop: %s\n", modbus_strerror(errno)); + + modbus_mapping_free(mb_mapping); + modbus_close(ctx); + modbus_free(ctx); + + return 0; +} -- cgit v1.2.3