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Emanuele
2019-10-21 11:37:31 +02:00
commit 44ac6e8802
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4
libmodbus-master/.dir-locals.el Normal file
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((nil . ((indent-tabs-mode . nil)
(c-basic-offset . 4)
(fill-column . 80))))

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libmodbus-master/.gitignore vendored Normal file
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*~
*.swp
*.o
*.la
*.lo
*.log
*.trs
.deps
.libs
GPATH
GRTAGS
GSYMS
GTAGS
INSTALL
Makefile
Makefile.in
/aclocal.m4
/autom4te.cache
/build-aux
/config.*
/configure
/configure.scan
/depcomp
/install-sh
/libtool
/ltmain.sh
/missing
/libmodbus.pc
/stamp-h1
/*.sublime-*
/.vscode
src/modbus-version.h
src/win32/modbus.dll.manifest
tests/bandwidth-client
tests/bandwidth-server-many-up
tests/bandwidth-server-one
tests/random-test-client
tests/random-test-server
tests/unit-test-client
tests/unit-test.h
tests/unit-test-server
tests/version
tests/stamp-h2
doc/*.html
doc/*.3
doc/*.7

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language: c
compiler:
- gcc
- clang
script: ./autogen.sh && ./configure && make && make check

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libmodbus-master/Makefile.am Normal file
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EXTRA_DIST =
lib_LTLIBRARIES = libmodbus.la
AM_CPPFLAGS = \
-include $(top_builddir)/config.h \
-DSYSCONFDIR=\""$(sysconfdir)"\" \
-DLIBEXECDIR=\""$(libexecdir)"\" \
-I${top_srcdir}/src
AM_CFLAGS = ${my_CFLAGS}
libmodbus_la_SOURCES = \
modbus.c \
modbus.h \
modbus-data.c \
modbus-private.h \
modbus-rtu.c \
modbus-rtu.h \
modbus-rtu-private.h \
modbus-tcp.c \
modbus-tcp.h \
modbus-tcp-private.h \
modbus-version.h
libmodbus_la_LDFLAGS = -no-undefined \
-version-info $(LIBMODBUS_LT_VERSION_INFO)
if OS_WIN32
libmodbus_la_LIBADD = -lwsock32
endif
if OS_QNX
libmodbus_la_LIBADD = -lsocket
endif
# Header files to install
libmodbusincludedir = $(includedir)/modbus
libmodbusinclude_HEADERS = modbus.h modbus-version.h modbus-rtu.h modbus-tcp.h
DISTCLEANFILES = modbus-version.h
EXTRA_DIST += modbus-version.h.in
CLEANFILES = *~

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/*
* Copyright © 2010-2014 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include <stdlib.h>
#ifndef _MSC_VER
# include <stdint.h>
#else
# include "stdint.h"
#endif
#include <string.h>
#include <assert.h>
#if defined(_WIN32)
# include <winsock2.h>
#else
# include <arpa/inet.h>
#endif
#include <config.h>
#include "modbus.h"
#if defined(HAVE_BYTESWAP_H)
# include <byteswap.h>
#endif
#if defined(__APPLE__)
# include <libkern/OSByteOrder.h>
# define bswap_16 OSSwapInt16
# define bswap_32 OSSwapInt32
# define bswap_64 OSSwapInt64
#endif
#if defined(__GNUC__)
# define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__ * 10)
# if GCC_VERSION >= 430
// Since GCC >= 4.30, GCC provides __builtin_bswapXX() alternatives so we switch to them
# undef bswap_32
# define bswap_32 __builtin_bswap32
# endif
# if GCC_VERSION >= 480
# undef bswap_16
# define bswap_16 __builtin_bswap16
# endif
#endif
#if defined(_MSC_VER) && (_MSC_VER >= 1400)
# define bswap_32 _byteswap_ulong
# define bswap_16 _byteswap_ushort
#endif
#if !defined(bswap_16)
# warning "Fallback on C functions for bswap_16"
static inline uint16_t bswap_16(uint16_t x)
{
return (x >> 8) | (x << 8);
}
#endif
#if !defined(bswap_32)
# warning "Fallback on C functions for bswap_32"
static inline uint32_t bswap_32(uint32_t x)
{
return (bswap_16(x & 0xffff) << 16) | (bswap_16(x >> 16));
}
#endif
/* Sets many bits from a single byte value (all 8 bits of the byte value are
set) */
void modbus_set_bits_from_byte(uint8_t *dest, int idx, const uint8_t value)
{
int i;
for (i=0; i < 8; i++) {
dest[idx+i] = (value & (1 << i)) ? 1 : 0;
}
}
/* Sets many bits from a table of bytes (only the bits between idx and
idx + nb_bits are set) */
void modbus_set_bits_from_bytes(uint8_t *dest, int idx, unsigned int nb_bits,
const uint8_t *tab_byte)
{
unsigned int i;
int shift = 0;
for (i = idx; i < idx + nb_bits; i++) {
dest[i] = tab_byte[(i - idx) / 8] & (1 << shift) ? 1 : 0;
/* gcc doesn't like: shift = (++shift) % 8; */
shift++;
shift %= 8;
}
}
/* Gets the byte value from many bits.
To obtain a full byte, set nb_bits to 8. */
uint8_t modbus_get_byte_from_bits(const uint8_t *src, int idx,
unsigned int nb_bits)
{
unsigned int i;
uint8_t value = 0;
if (nb_bits > 8) {
/* Assert is ignored if NDEBUG is set */
assert(nb_bits < 8);
nb_bits = 8;
}
for (i=0; i < nb_bits; i++) {
value |= (src[idx+i] << i);
}
return value;
}
/* Get a float from 4 bytes (Modbus) without any conversion (ABCD) */
float modbus_get_float_abcd(const uint16_t *src)
{
float f;
uint32_t i;
i = ntohl(((uint32_t)src[0] << 16) + src[1]);
memcpy(&f, &i, sizeof(float));
return f;
}
/* Get a float from 4 bytes (Modbus) in inversed format (DCBA) */
float modbus_get_float_dcba(const uint16_t *src)
{
float f;
uint32_t i;
i = ntohl(bswap_32((((uint32_t)src[0]) << 16) + src[1]));
memcpy(&f, &i, sizeof(float));
return f;
}
/* Get a float from 4 bytes (Modbus) with swapped bytes (BADC) */
float modbus_get_float_badc(const uint16_t *src)
{
float f;
uint32_t i;
i = ntohl((uint32_t)(bswap_16(src[0]) << 16) + bswap_16(src[1]));
memcpy(&f, &i, sizeof(float));
return f;
}
/* Get a float from 4 bytes (Modbus) with swapped words (CDAB) */
float modbus_get_float_cdab(const uint16_t *src)
{
float f;
uint32_t i;
i = ntohl((((uint32_t)src[1]) << 16) + src[0]);
memcpy(&f, &i, sizeof(float));
return f;
}
/* DEPRECATED - Get a float from 4 bytes in sort of Modbus format */
float modbus_get_float(const uint16_t *src)
{
float f;
uint32_t i;
i = (((uint32_t)src[1]) << 16) + src[0];
memcpy(&f, &i, sizeof(float));
return f;
}
/* Set a float to 4 bytes for Modbus w/o any conversion (ABCD) */
void modbus_set_float_abcd(float f, uint16_t *dest)
{
uint32_t i;
memcpy(&i, &f, sizeof(uint32_t));
i = htonl(i);
dest[0] = (uint16_t)(i >> 16);
dest[1] = (uint16_t)i;
}
/* Set a float to 4 bytes for Modbus with byte and word swap conversion (DCBA) */
void modbus_set_float_dcba(float f, uint16_t *dest)
{
uint32_t i;
memcpy(&i, &f, sizeof(uint32_t));
i = bswap_32(htonl(i));
dest[0] = (uint16_t)(i >> 16);
dest[1] = (uint16_t)i;
}
/* Set a float to 4 bytes for Modbus with byte swap conversion (BADC) */
void modbus_set_float_badc(float f, uint16_t *dest)
{
uint32_t i;
memcpy(&i, &f, sizeof(uint32_t));
i = htonl(i);
dest[0] = (uint16_t)bswap_16(i >> 16);
dest[1] = (uint16_t)bswap_16(i & 0xFFFF);
}
/* Set a float to 4 bytes for Modbus with word swap conversion (CDAB) */
void modbus_set_float_cdab(float f, uint16_t *dest)
{
uint32_t i;
memcpy(&i, &f, sizeof(uint32_t));
i = htonl(i);
dest[0] = (uint16_t)i;
dest[1] = (uint16_t)(i >> 16);
}
/* DEPRECATED - Set a float to 4 bytes in a sort of Modbus format! */
void modbus_set_float(float f, uint16_t *dest)
{
uint32_t i;
memcpy(&i, &f, sizeof(uint32_t));
dest[0] = (uint16_t)i;
dest[1] = (uint16_t)(i >> 16);
}

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/*
* Copyright © 2010-2012 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_PRIVATE_H
#define MODBUS_PRIVATE_H
#ifndef _MSC_VER
# include <stdint.h>
# include <sys/time.h>
#else
# include "stdint.h"
# include <time.h>
typedef int ssize_t;
#endif
#include <sys/types.h>
#include <config.h>
#include "modbus.h"
MODBUS_BEGIN_DECLS
/* It's not really the minimal length (the real one is report slave ID
* in RTU (4 bytes)) but it's a convenient size to use in RTU or TCP
* communications to read many values or write a single one.
* Maximum between :
* - HEADER_LENGTH_TCP (7) + function (1) + address (2) + number (2)
* - HEADER_LENGTH_RTU (1) + function (1) + address (2) + number (2) + CRC (2)
*/
#define _MIN_REQ_LENGTH 12
#define _REPORT_SLAVE_ID 180
#define _MODBUS_EXCEPTION_RSP_LENGTH 5
/* Timeouts in microsecond (0.5 s) */
#define _RESPONSE_TIMEOUT 500000
#define _BYTE_TIMEOUT 500000
typedef enum {
_MODBUS_BACKEND_TYPE_RTU=0,
_MODBUS_BACKEND_TYPE_TCP
} modbus_backend_type_t;
/*
* ---------- Request Indication ----------
* | Client | ---------------------->| Server |
* ---------- Confirmation Response ----------
*/
typedef enum {
/* Request message on the server side */
MSG_INDICATION,
/* Request message on the client side */
MSG_CONFIRMATION
} msg_type_t;
/* This structure reduces the number of params in functions and so
* optimizes the speed of execution (~ 37%). */
typedef struct _sft {
int slave;
int function;
int t_id;
} sft_t;
typedef struct _modbus_backend {
unsigned int backend_type;
unsigned int header_length;
unsigned int checksum_length;
unsigned int max_adu_length;
int (*set_slave) (modbus_t *ctx, int slave);
int (*build_request_basis) (modbus_t *ctx, int function, int addr,
int nb, uint8_t *req);
int (*build_response_basis) (sft_t *sft, uint8_t *rsp);
int (*prepare_response_tid) (const uint8_t *req, int *req_length);
int (*send_msg_pre) (uint8_t *req, int req_length);
ssize_t (*send) (modbus_t *ctx, const uint8_t *req, int req_length);
int (*receive) (modbus_t *ctx, uint8_t *req);
ssize_t (*recv) (modbus_t *ctx, uint8_t *rsp, int rsp_length);
int (*check_integrity) (modbus_t *ctx, uint8_t *msg,
const int msg_length);
int (*pre_check_confirmation) (modbus_t *ctx, const uint8_t *req,
const uint8_t *rsp, int rsp_length);
int (*connect) (modbus_t *ctx);
void (*close) (modbus_t *ctx);
int (*flush) (modbus_t *ctx);
int (*select) (modbus_t *ctx, fd_set *rset, struct timeval *tv, int msg_length);
void (*free) (modbus_t *ctx);
} modbus_backend_t;
struct _modbus {
/* Slave address */
int slave;
/* Socket or file descriptor */
int s;
int debug;
int error_recovery;
struct timeval response_timeout;
struct timeval byte_timeout;
struct timeval indication_timeout;
const modbus_backend_t *backend;
void *backend_data;
};
void _modbus_init_common(modbus_t *ctx);
void _error_print(modbus_t *ctx, const char *context);
int _modbus_receive_msg(modbus_t *ctx, uint8_t *msg, msg_type_t msg_type);
#ifndef HAVE_STRLCPY
size_t strlcpy(char *dest, const char *src, size_t dest_size);
#endif
MODBUS_END_DECLS
#endif /* MODBUS_PRIVATE_H */

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libmodbus-master/modbus-rtu-private.h Normal file
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/*
* Copyright © 2001-2011 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_RTU_PRIVATE_H
#define MODBUS_RTU_PRIVATE_H
#ifndef _MSC_VER
#include <stdint.h>
#else
#include "stdint.h"
#endif
#if defined(_WIN32)
#include <windows.h>
#else
#include <termios.h>
#endif
#define _MODBUS_RTU_HEADER_LENGTH 1
#define _MODBUS_RTU_PRESET_REQ_LENGTH 6
#define _MODBUS_RTU_PRESET_RSP_LENGTH 2
#define _MODBUS_RTU_CHECKSUM_LENGTH 2
#if defined(_WIN32)
#if !defined(ENOTSUP)
#define ENOTSUP WSAEOPNOTSUPP
#endif
/* WIN32: struct containing serial handle and a receive buffer */
#define PY_BUF_SIZE 512
struct win32_ser {
/* File handle */
HANDLE fd;
/* Receive buffer */
uint8_t buf[PY_BUF_SIZE];
/* Received chars */
DWORD n_bytes;
};
#endif /* _WIN32 */
typedef struct _modbus_rtu {
/* Device: "/dev/ttyS0", "/dev/ttyUSB0" or "/dev/tty.USA19*" on Mac OS X. */
char *device;
/* Bauds: 9600, 19200, 57600, 115200, etc */
int baud;
/* Data bit */
uint8_t data_bit;
/* Stop bit */
uint8_t stop_bit;
/* Parity: 'N', 'O', 'E' */
char parity;
#if defined(_WIN32)
struct win32_ser w_ser;
DCB old_dcb;
#else
/* Save old termios settings */
struct termios old_tios;
#endif
#if HAVE_DECL_TIOCSRS485
int serial_mode;
#endif
#if HAVE_DECL_TIOCM_RTS
int rts;
int rts_delay;
int onebyte_time;
void (*set_rts) (modbus_t *ctx, int on);
#endif
/* To handle many slaves on the same link */
int confirmation_to_ignore;
} modbus_rtu_t;
#endif /* MODBUS_RTU_PRIVATE_H */

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/*
* Copyright © 2001-2011 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_RTU_H
#define MODBUS_RTU_H
#include "modbus.h"
MODBUS_BEGIN_DECLS
/* Modbus_Application_Protocol_V1_1b.pdf Chapter 4 Section 1 Page 5
* RS232 / RS485 ADU = 253 bytes + slave (1 byte) + CRC (2 bytes) = 256 bytes
*/
#define MODBUS_RTU_MAX_ADU_LENGTH 256
MODBUS_API modbus_t* modbus_new_rtu(const char *device, int baud, char parity,
int data_bit, int stop_bit);
#define MODBUS_RTU_RS232 0
#define MODBUS_RTU_RS485 1
MODBUS_API int modbus_rtu_set_serial_mode(modbus_t *ctx, int mode);
MODBUS_API int modbus_rtu_get_serial_mode(modbus_t *ctx);
#define MODBUS_RTU_RTS_NONE 0
#define MODBUS_RTU_RTS_UP 1
#define MODBUS_RTU_RTS_DOWN 2
MODBUS_API int modbus_rtu_set_rts(modbus_t *ctx, int mode);
MODBUS_API int modbus_rtu_get_rts(modbus_t *ctx);
MODBUS_API int modbus_rtu_set_custom_rts(modbus_t *ctx, void (*set_rts) (modbus_t *ctx, int on));
MODBUS_API int modbus_rtu_set_rts_delay(modbus_t *ctx, int us);
MODBUS_API int modbus_rtu_get_rts_delay(modbus_t *ctx);
MODBUS_END_DECLS
#endif /* MODBUS_RTU_H */

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/*
* Copyright © 2001-2011 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_TCP_PRIVATE_H
#define MODBUS_TCP_PRIVATE_H
#define _MODBUS_TCP_HEADER_LENGTH 7
#define _MODBUS_TCP_PRESET_REQ_LENGTH 12
#define _MODBUS_TCP_PRESET_RSP_LENGTH 8
#define _MODBUS_TCP_CHECKSUM_LENGTH 0
/* In both structures, the transaction ID must be placed on first position
to have a quick access not dependant of the TCP backend */
typedef struct _modbus_tcp {
/* Extract from MODBUS Messaging on TCP/IP Implementation Guide V1.0b
(page 23/46):
The transaction identifier is used to associate the future response
with the request. This identifier is unique on each TCP connection. */
uint16_t t_id;
/* TCP port */
int port;
/* IP address */
char ip[16];
} modbus_tcp_t;
#define _MODBUS_TCP_PI_NODE_LENGTH 1025
#define _MODBUS_TCP_PI_SERVICE_LENGTH 32
typedef struct _modbus_tcp_pi {
/* Transaction ID */
uint16_t t_id;
/* TCP port */
int port;
/* Node */
char node[_MODBUS_TCP_PI_NODE_LENGTH];
/* Service */
char service[_MODBUS_TCP_PI_SERVICE_LENGTH];
} modbus_tcp_pi_t;
#endif /* MODBUS_TCP_PRIVATE_H */

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/*
* Copyright © 2001-2013 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#if defined(_WIN32)
# define OS_WIN32
/* ws2_32.dll has getaddrinfo and freeaddrinfo on Windows XP and later.
* minwg32 headers check WINVER before allowing the use of these */
# ifndef WINVER
# define WINVER 0x0501
# endif
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#include <signal.h>
#include <sys/types.h>
#if defined(_WIN32)
/* Already set in modbus-tcp.h but it seems order matters in VS2005 */
# include <winsock2.h>
# include <ws2tcpip.h>
# define SHUT_RDWR 2
# define close closesocket
#else
# include <sys/socket.h>
# include <sys/ioctl.h>
#if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ < 5)
# define OS_BSD
# include <netinet/in_systm.h>
#endif
# include <netinet/in.h>
# include <netinet/ip.h>
# include <netinet/tcp.h>
# include <arpa/inet.h>
# include <netdb.h>
#endif
#if !defined(MSG_NOSIGNAL)
#define MSG_NOSIGNAL 0
#endif
#if defined(_AIX) && !defined(MSG_DONTWAIT)
#define MSG_DONTWAIT MSG_NONBLOCK
#endif
#include "modbus-private.h"
#include "modbus-tcp.h"
#include "modbus-tcp-private.h"
#ifdef OS_WIN32
static int _modbus_tcp_init_win32(void)
{
/* Initialise Windows Socket API */
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
fprintf(stderr, "WSAStartup() returned error code %d\n",
(unsigned int)GetLastError());
errno = EIO;
return -1;
}
return 0;
}
#endif
static int _modbus_set_slave(modbus_t *ctx, int slave)
{
/* Broadcast address is 0 (MODBUS_BROADCAST_ADDRESS) */
if (slave >= 0 && slave <= 247) {
ctx->slave = slave;
} else if (slave == MODBUS_TCP_SLAVE) {
/* The special value MODBUS_TCP_SLAVE (0xFF) can be used in TCP mode to
* restore the default value. */
ctx->slave = slave;
} else {
errno = EINVAL;
return -1;
}
return 0;
}
/* Builds a TCP request header */
static int _modbus_tcp_build_request_basis(modbus_t *ctx, int function,
int addr, int nb,
uint8_t *req)
{
modbus_tcp_t *ctx_tcp = ctx->backend_data;
/* Increase transaction ID */
if (ctx_tcp->t_id < UINT16_MAX)
ctx_tcp->t_id++;
else
ctx_tcp->t_id = 0;
req[0] = ctx_tcp->t_id >> 8;
req[1] = ctx_tcp->t_id & 0x00ff;
/* Protocol Modbus */
req[2] = 0;
req[3] = 0;
/* Length will be defined later by set_req_length_tcp at offsets 4
and 5 */
req[6] = ctx->slave;
req[7] = function;
req[8] = addr >> 8;
req[9] = addr & 0x00ff;
req[10] = nb >> 8;
req[11] = nb & 0x00ff;
return _MODBUS_TCP_PRESET_REQ_LENGTH;
}
/* Builds a TCP response header */
static int _modbus_tcp_build_response_basis(sft_t *sft, uint8_t *rsp)
{
/* Extract from MODBUS Messaging on TCP/IP Implementation
Guide V1.0b (page 23/46):
The transaction identifier is used to associate the future
response with the request. */
rsp[0] = sft->t_id >> 8;
rsp[1] = sft->t_id & 0x00ff;
/* Protocol Modbus */
rsp[2] = 0;
rsp[3] = 0;
/* Length will be set later by send_msg (4 and 5) */
/* The slave ID is copied from the indication */
rsp[6] = sft->slave;
rsp[7] = sft->function;
return _MODBUS_TCP_PRESET_RSP_LENGTH;
}
static int _modbus_tcp_prepare_response_tid(const uint8_t *req, int *req_length)
{
return (req[0] << 8) + req[1];
}
static int _modbus_tcp_send_msg_pre(uint8_t *req, int req_length)
{
/* Substract the header length to the message length */
int mbap_length = req_length - 6;
req[4] = mbap_length >> 8;
req[5] = mbap_length & 0x00FF;
return req_length;
}
static ssize_t _modbus_tcp_send(modbus_t *ctx, const uint8_t *req, int req_length)
{
/* MSG_NOSIGNAL
Requests not to send SIGPIPE on errors on stream oriented
sockets when the other end breaks the connection. The EPIPE
error is still returned. */
return send(ctx->s, (const char *)req, req_length, MSG_NOSIGNAL);
}
static int _modbus_tcp_receive(modbus_t *ctx, uint8_t *req) {
return _modbus_receive_msg(ctx, req, MSG_INDICATION);
}
static ssize_t _modbus_tcp_recv(modbus_t *ctx, uint8_t *rsp, int rsp_length) {
return recv(ctx->s, (char *)rsp, rsp_length, 0);
}
static int _modbus_tcp_check_integrity(modbus_t *ctx, uint8_t *msg, const int msg_length)
{
return msg_length;
}
static int _modbus_tcp_pre_check_confirmation(modbus_t *ctx, const uint8_t *req,
const uint8_t *rsp, int rsp_length)
{
/* Check transaction ID */
if (req[0] != rsp[0] || req[1] != rsp[1]) {
if (ctx->debug) {
fprintf(stderr, "Invalid transaction ID received 0x%X (not 0x%X)\n",
(rsp[0] << 8) + rsp[1], (req[0] << 8) + req[1]);
}
errno = EMBBADDATA;
return -1;
}
/* Check protocol ID */
if (rsp[2] != 0x0 && rsp[3] != 0x0) {
if (ctx->debug) {
fprintf(stderr, "Invalid protocol ID received 0x%X (not 0x0)\n",
(rsp[2] << 8) + rsp[3]);
}
errno = EMBBADDATA;
return -1;
}
return 0;
}
static int _modbus_tcp_set_ipv4_options(int s)
{
int rc;
int option;
/* Set the TCP no delay flag */
/* SOL_TCP = IPPROTO_TCP */
option = 1;
rc = setsockopt(s, IPPROTO_TCP, TCP_NODELAY,
(const void *)&option, sizeof(int));
if (rc == -1) {
return -1;
}
/* If the OS does not offer SOCK_NONBLOCK, fall back to setting FIONBIO to
* make sockets non-blocking */
/* Do not care about the return value, this is optional */
#if !defined(SOCK_NONBLOCK) && defined(FIONBIO)
#ifdef OS_WIN32
{
/* Setting FIONBIO expects an unsigned long according to MSDN */
u_long loption = 1;
ioctlsocket(s, FIONBIO, &loption);
}
#else
option = 1;
ioctl(s, FIONBIO, &option);
#endif
#endif
#ifndef OS_WIN32
/**
* Cygwin defines IPTOS_LOWDELAY but can't handle that flag so it's
* necessary to workaround that problem.
**/
/* Set the IP low delay option */
option = IPTOS_LOWDELAY;
rc = setsockopt(s, IPPROTO_IP, IP_TOS,
(const void *)&option, sizeof(int));
if (rc == -1) {
return -1;
}
#endif
return 0;
}
static int _connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen,
const struct timeval *ro_tv)
{
int rc = connect(sockfd, addr, addrlen);
#ifdef OS_WIN32
int wsaError = 0;
if (rc == -1) {
wsaError = WSAGetLastError();
}
if (wsaError == WSAEWOULDBLOCK || wsaError == WSAEINPROGRESS) {
#else
if (rc == -1 && errno == EINPROGRESS) {
#endif
fd_set wset;
int optval;
socklen_t optlen = sizeof(optval);
struct timeval tv = *ro_tv;
/* Wait to be available in writing */
FD_ZERO(&wset);
FD_SET(sockfd, &wset);
rc = select(sockfd + 1, NULL, &wset, NULL, &tv);
if (rc <= 0) {
/* Timeout or fail */
return -1;
}
/* The connection is established if SO_ERROR and optval are set to 0 */
rc = getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (void *)&optval, &optlen);
if (rc == 0 && optval == 0) {
return 0;
} else {
errno = ECONNREFUSED;
return -1;
}
}
return rc;
}
/* Establishes a modbus TCP connection with a Modbus server. */
static int _modbus_tcp_connect(modbus_t *ctx)
{
int rc;
/* Specialized version of sockaddr for Internet socket address (same size) */
struct sockaddr_in addr;
modbus_tcp_t *ctx_tcp = ctx->backend_data;
int flags = SOCK_STREAM;
#ifdef OS_WIN32
if (_modbus_tcp_init_win32() == -1) {
return -1;
}
#endif
#ifdef SOCK_CLOEXEC
flags |= SOCK_CLOEXEC;
#endif
#ifdef SOCK_NONBLOCK
flags |= SOCK_NONBLOCK;
#endif
ctx->s = socket(PF_INET, flags, 0);
if (ctx->s == -1) {
return -1;
}
rc = _modbus_tcp_set_ipv4_options(ctx->s);
if (rc == -1) {
close(ctx->s);
ctx->s = -1;
return -1;
}
if (ctx->debug) {
printf("Connecting to %s:%d\n", ctx_tcp->ip, ctx_tcp->port);
}
addr.sin_family = AF_INET;
addr.sin_port = htons(ctx_tcp->port);
addr.sin_addr.s_addr = inet_addr(ctx_tcp->ip);
rc = _connect(ctx->s, (struct sockaddr *)&addr, sizeof(addr), &ctx->response_timeout);
if (rc == -1) {
close(ctx->s);
ctx->s = -1;
return -1;
}
return 0;
}
/* Establishes a modbus TCP PI connection with a Modbus server. */
static int _modbus_tcp_pi_connect(modbus_t *ctx)
{
int rc;
struct addrinfo *ai_list;
struct addrinfo *ai_ptr;
struct addrinfo ai_hints;
modbus_tcp_pi_t *ctx_tcp_pi = ctx->backend_data;
#ifdef OS_WIN32
if (_modbus_tcp_init_win32() == -1) {
return -1;
}
#endif
memset(&ai_hints, 0, sizeof(ai_hints));
#ifdef AI_ADDRCONFIG
ai_hints.ai_flags |= AI_ADDRCONFIG;
#endif
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_STREAM;
ai_hints.ai_addr = NULL;
ai_hints.ai_canonname = NULL;
ai_hints.ai_next = NULL;
ai_list = NULL;
rc = getaddrinfo(ctx_tcp_pi->node, ctx_tcp_pi->service,
&ai_hints, &ai_list);
if (rc != 0) {
if (ctx->debug) {
fprintf(stderr, "Error returned by getaddrinfo: %s\n", gai_strerror(rc));
}
errno = ECONNREFUSED;
return -1;
}
for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) {
int flags = ai_ptr->ai_socktype;
int s;
#ifdef SOCK_CLOEXEC
flags |= SOCK_CLOEXEC;
#endif
#ifdef SOCK_NONBLOCK
flags |= SOCK_NONBLOCK;
#endif
s = socket(ai_ptr->ai_family, flags, ai_ptr->ai_protocol);
if (s < 0)
continue;
if (ai_ptr->ai_family == AF_INET)
_modbus_tcp_set_ipv4_options(s);
if (ctx->debug) {
printf("Connecting to [%s]:%s\n", ctx_tcp_pi->node, ctx_tcp_pi->service);
}
rc = _connect(s, ai_ptr->ai_addr, ai_ptr->ai_addrlen, &ctx->response_timeout);
if (rc == -1) {
close(s);
continue;
}
ctx->s = s;
break;
}
freeaddrinfo(ai_list);
if (ctx->s < 0) {
return -1;
}
return 0;
}
/* Closes the network connection and socket in TCP mode */
static void _modbus_tcp_close(modbus_t *ctx)
{
if (ctx->s != -1) {
shutdown(ctx->s, SHUT_RDWR);
close(ctx->s);
ctx->s = -1;
}
}
static int _modbus_tcp_flush(modbus_t *ctx)
{
int rc;
int rc_sum = 0;
do {
/* Extract the garbage from the socket */
char devnull[MODBUS_TCP_MAX_ADU_LENGTH];
#ifndef OS_WIN32
rc = recv(ctx->s, devnull, MODBUS_TCP_MAX_ADU_LENGTH, MSG_DONTWAIT);
#else
/* On Win32, it's a bit more complicated to not wait */
fd_set rset;
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&rset);
FD_SET(ctx->s, &rset);
rc = select(ctx->s+1, &rset, NULL, NULL, &tv);
if (rc == -1) {
return -1;
}
if (rc == 1) {
/* There is data to flush */
rc = recv(ctx->s, devnull, MODBUS_TCP_MAX_ADU_LENGTH, 0);
}
#endif
if (rc > 0) {
rc_sum += rc;
}
} while (rc == MODBUS_TCP_MAX_ADU_LENGTH);
return rc_sum;
}
/* Listens for any request from one or many modbus masters in TCP */
int modbus_tcp_listen(modbus_t *ctx, int nb_connection)
{
int new_s;
int enable;
int flags;
struct sockaddr_in addr;
modbus_tcp_t *ctx_tcp;
if (ctx == NULL) {
errno = EINVAL;
return -1;
}
ctx_tcp = ctx->backend_data;
#ifdef OS_WIN32
if (_modbus_tcp_init_win32() == -1) {
return -1;
}
#endif
flags = SOCK_STREAM;
#ifdef SOCK_CLOEXEC
flags |= SOCK_CLOEXEC;
#endif
new_s = socket(PF_INET, flags, IPPROTO_TCP);
if (new_s == -1) {
return -1;
}
enable = 1;
if (setsockopt(new_s, SOL_SOCKET, SO_REUSEADDR,
(char *)&enable, sizeof(enable)) == -1) {
close(new_s);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
/* If the modbus port is < to 1024, we need the setuid root. */
addr.sin_port = htons(ctx_tcp->port);
if (ctx_tcp->ip[0] == '0') {
/* Listen any addresses */
addr.sin_addr.s_addr = htonl(INADDR_ANY);
} else {
/* Listen only specified IP address */
addr.sin_addr.s_addr = inet_addr(ctx_tcp->ip);
}
if (bind(new_s, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
close(new_s);
return -1;
}
if (listen(new_s, nb_connection) == -1) {
close(new_s);
return -1;
}
return new_s;
}
int modbus_tcp_pi_listen(modbus_t *ctx, int nb_connection)
{
int rc;
struct addrinfo *ai_list;
struct addrinfo *ai_ptr;
struct addrinfo ai_hints;
const char *node;
const char *service;
int new_s;
modbus_tcp_pi_t *ctx_tcp_pi;
if (ctx == NULL) {
errno = EINVAL;
return -1;
}
ctx_tcp_pi = ctx->backend_data;
#ifdef OS_WIN32
if (_modbus_tcp_init_win32() == -1) {
return -1;
}
#endif
if (ctx_tcp_pi->node[0] == 0) {
node = NULL; /* == any */
} else {
node = ctx_tcp_pi->node;
}
if (ctx_tcp_pi->service[0] == 0) {
service = "502";
} else {
service = ctx_tcp_pi->service;
}
memset(&ai_hints, 0, sizeof (ai_hints));
/* If node is not NULL, than the AI_PASSIVE flag is ignored. */
ai_hints.ai_flags |= AI_PASSIVE;
#ifdef AI_ADDRCONFIG
ai_hints.ai_flags |= AI_ADDRCONFIG;
#endif
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_STREAM;
ai_hints.ai_addr = NULL;
ai_hints.ai_canonname = NULL;
ai_hints.ai_next = NULL;
ai_list = NULL;
rc = getaddrinfo(node, service, &ai_hints, &ai_list);
if (rc != 0) {
if (ctx->debug) {
fprintf(stderr, "Error returned by getaddrinfo: %s\n", gai_strerror(rc));
}
errno = ECONNREFUSED;
return -1;
}
new_s = -1;
for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next) {
int flags = ai_ptr->ai_socktype;
int s;
#ifdef SOCK_CLOEXEC
flags |= SOCK_CLOEXEC;
#endif
s = socket(ai_ptr->ai_family, flags, ai_ptr->ai_protocol);
if (s < 0) {
if (ctx->debug) {
perror("socket");
}
continue;
} else {
int enable = 1;
rc = setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
(void *)&enable, sizeof (enable));
if (rc != 0) {
close(s);
if (ctx->debug) {
perror("setsockopt");
}
continue;
}
}
rc = bind(s, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
if (rc != 0) {
close(s);
if (ctx->debug) {
perror("bind");
}
continue;
}
rc = listen(s, nb_connection);
if (rc != 0) {
close(s);
if (ctx->debug) {
perror("listen");
}
continue;
}
new_s = s;
break;
}
freeaddrinfo(ai_list);
if (new_s < 0) {
return -1;
}
return new_s;
}
int modbus_tcp_accept(modbus_t *ctx, int *s)
{
struct sockaddr_in addr;
socklen_t addrlen;
if (ctx == NULL) {
errno = EINVAL;
return -1;
}
addrlen = sizeof(addr);
#ifdef HAVE_ACCEPT4
/* Inherit socket flags and use accept4 call */
ctx->s = accept4(*s, (struct sockaddr *)&addr, &addrlen, SOCK_CLOEXEC);
#else
ctx->s = accept(*s, (struct sockaddr *)&addr, &addrlen);
#endif
if (ctx->s == -1) {
return -1;
}
if (ctx->debug) {
printf("The client connection from %s is accepted\n",
inet_ntoa(addr.sin_addr));
}
return ctx->s;
}
int modbus_tcp_pi_accept(modbus_t *ctx, int *s)
{
struct sockaddr_storage addr;
socklen_t addrlen;
if (ctx == NULL) {
errno = EINVAL;
return -1;
}
addrlen = sizeof(addr);
#ifdef HAVE_ACCEPT4
/* Inherit socket flags and use accept4 call */
ctx->s = accept4(*s, (struct sockaddr *)&addr, &addrlen, SOCK_CLOEXEC);
#else
ctx->s = accept(*s, (struct sockaddr *)&addr, &addrlen);
#endif
if (ctx->s == -1) {
return -1;
}
if (ctx->debug) {
printf("The client connection is accepted.\n");
}
return ctx->s;
}
static int _modbus_tcp_select(modbus_t *ctx, fd_set *rset, struct timeval *tv, int length_to_read)
{
int s_rc;
while ((s_rc = select(ctx->s+1, rset, NULL, NULL, tv)) == -1) {
if (errno == EINTR) {
if (ctx->debug) {
fprintf(stderr, "A non blocked signal was caught\n");
}
/* Necessary after an error */
FD_ZERO(rset);
FD_SET(ctx->s, rset);
} else {
return -1;
}
}
if (s_rc == 0) {
errno = ETIMEDOUT;
return -1;
}
return s_rc;
}
static void _modbus_tcp_free(modbus_t *ctx) {
free(ctx->backend_data);
free(ctx);
}
const modbus_backend_t _modbus_tcp_backend = {
_MODBUS_BACKEND_TYPE_TCP,
_MODBUS_TCP_HEADER_LENGTH,
_MODBUS_TCP_CHECKSUM_LENGTH,
MODBUS_TCP_MAX_ADU_LENGTH,
_modbus_set_slave,
_modbus_tcp_build_request_basis,
_modbus_tcp_build_response_basis,
_modbus_tcp_prepare_response_tid,
_modbus_tcp_send_msg_pre,
_modbus_tcp_send,
_modbus_tcp_receive,
_modbus_tcp_recv,
_modbus_tcp_check_integrity,
_modbus_tcp_pre_check_confirmation,
_modbus_tcp_connect,
_modbus_tcp_close,
_modbus_tcp_flush,
_modbus_tcp_select,
_modbus_tcp_free
};
const modbus_backend_t _modbus_tcp_pi_backend = {
_MODBUS_BACKEND_TYPE_TCP,
_MODBUS_TCP_HEADER_LENGTH,
_MODBUS_TCP_CHECKSUM_LENGTH,
MODBUS_TCP_MAX_ADU_LENGTH,
_modbus_set_slave,
_modbus_tcp_build_request_basis,
_modbus_tcp_build_response_basis,
_modbus_tcp_prepare_response_tid,
_modbus_tcp_send_msg_pre,
_modbus_tcp_send,
_modbus_tcp_receive,
_modbus_tcp_recv,
_modbus_tcp_check_integrity,
_modbus_tcp_pre_check_confirmation,
_modbus_tcp_pi_connect,
_modbus_tcp_close,
_modbus_tcp_flush,
_modbus_tcp_select,
_modbus_tcp_free
};
modbus_t* modbus_new_tcp(const char *ip, int port)
{
modbus_t *ctx;
modbus_tcp_t *ctx_tcp;
size_t dest_size;
size_t ret_size;
#if defined(OS_BSD)
/* MSG_NOSIGNAL is unsupported on *BSD so we install an ignore
handler for SIGPIPE. */
struct sigaction sa;
sa.sa_handler = SIG_IGN;
if (sigaction(SIGPIPE, &sa, NULL) < 0) {
/* The debug flag can't be set here... */
fprintf(stderr, "Could not install SIGPIPE handler.\n");
return NULL;
}
#endif
ctx = (modbus_t *)malloc(sizeof(modbus_t));
if (ctx == NULL) {
return NULL;
}
_modbus_init_common(ctx);
/* Could be changed after to reach a remote serial Modbus device */
ctx->slave = MODBUS_TCP_SLAVE;
ctx->backend = &_modbus_tcp_backend;
ctx->backend_data = (modbus_tcp_t *)malloc(sizeof(modbus_tcp_t));
if (ctx->backend_data == NULL) {
modbus_free(ctx);
errno = ENOMEM;
return NULL;
}
ctx_tcp = (modbus_tcp_t *)ctx->backend_data;
if (ip != NULL) {
dest_size = sizeof(char) * 16;
ret_size = strlcpy(ctx_tcp->ip, ip, dest_size);
if (ret_size == 0) {
fprintf(stderr, "The IP string is empty\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
if (ret_size >= dest_size) {
fprintf(stderr, "The IP string has been truncated\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
} else {
ctx_tcp->ip[0] = '0';
}
ctx_tcp->port = port;
ctx_tcp->t_id = 0;
return ctx;
}
modbus_t* modbus_new_tcp_pi(const char *node, const char *service)
{
modbus_t *ctx;
modbus_tcp_pi_t *ctx_tcp_pi;
size_t dest_size;
size_t ret_size;
ctx = (modbus_t *)malloc(sizeof(modbus_t));
if (ctx == NULL) {
return NULL;
}
_modbus_init_common(ctx);
/* Could be changed after to reach a remote serial Modbus device */
ctx->slave = MODBUS_TCP_SLAVE;
ctx->backend = &_modbus_tcp_pi_backend;
ctx->backend_data = (modbus_tcp_pi_t *)malloc(sizeof(modbus_tcp_pi_t));
if (ctx->backend_data == NULL) {
modbus_free(ctx);
errno = ENOMEM;
return NULL;
}
ctx_tcp_pi = (modbus_tcp_pi_t *)ctx->backend_data;
if (node == NULL) {
/* The node argument can be empty to indicate any hosts */
ctx_tcp_pi->node[0] = 0;
} else {
dest_size = sizeof(char) * _MODBUS_TCP_PI_NODE_LENGTH;
ret_size = strlcpy(ctx_tcp_pi->node, node, dest_size);
if (ret_size == 0) {
fprintf(stderr, "The node string is empty\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
if (ret_size >= dest_size) {
fprintf(stderr, "The node string has been truncated\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
}
if (service != NULL) {
dest_size = sizeof(char) * _MODBUS_TCP_PI_SERVICE_LENGTH;
ret_size = strlcpy(ctx_tcp_pi->service, service, dest_size);
} else {
/* Empty service is not allowed, error catched below. */
ret_size = 0;
}
if (ret_size == 0) {
fprintf(stderr, "The service string is empty\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
if (ret_size >= dest_size) {
fprintf(stderr, "The service string has been truncated\n");
modbus_free(ctx);
errno = EINVAL;
return NULL;
}
ctx_tcp_pi->t_id = 0;
return ctx;
}

52
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/*
* Copyright © 2001-2010 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_TCP_H
#define MODBUS_TCP_H
#include "modbus.h"
MODBUS_BEGIN_DECLS
#if defined(_WIN32) && !defined(__CYGWIN__)
/* Win32 with MinGW, supplement to <errno.h> */
#include <winsock2.h>
#if !defined(ECONNRESET)
#define ECONNRESET WSAECONNRESET
#endif
#if !defined(ECONNREFUSED)
#define ECONNREFUSED WSAECONNREFUSED
#endif
#if !defined(ETIMEDOUT)
#define ETIMEDOUT WSAETIMEDOUT
#endif
#if !defined(ENOPROTOOPT)
#define ENOPROTOOPT WSAENOPROTOOPT
#endif
#if !defined(EINPROGRESS)
#define EINPROGRESS WSAEINPROGRESS
#endif
#endif
#define MODBUS_TCP_DEFAULT_PORT 502
#define MODBUS_TCP_SLAVE 0xFF
/* Modbus_Application_Protocol_V1_1b.pdf Chapter 4 Section 1 Page 5
* TCP MODBUS ADU = 253 bytes + MBAP (7 bytes) = 260 bytes
*/
#define MODBUS_TCP_MAX_ADU_LENGTH 260
MODBUS_API modbus_t* modbus_new_tcp(const char *ip_address, int port);
MODBUS_API int modbus_tcp_listen(modbus_t *ctx, int nb_connection);
MODBUS_API int modbus_tcp_accept(modbus_t *ctx, int *s);
MODBUS_API modbus_t* modbus_new_tcp_pi(const char *node, const char *service);
MODBUS_API int modbus_tcp_pi_listen(modbus_t *ctx, int nb_connection);
MODBUS_API int modbus_tcp_pi_accept(modbus_t *ctx, int *s);
MODBUS_END_DECLS
#endif /* MODBUS_TCP_H */

53
libmodbus-master/modbus-version.h Normal file
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/*
* Copyright © 2010-2014 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef MODBUS_VERSION_H
#define MODBUS_VERSION_H
/* The major version, (1, if %LIBMODBUS_VERSION is 1.2.3) */
#define LIBMODBUS_VERSION_MAJOR (@LIBMODBUS_VERSION_MAJOR@)
/* The minor version (2, if %LIBMODBUS_VERSION is 1.2.3) */
#define LIBMODBUS_VERSION_MINOR (@LIBMODBUS_VERSION_MINOR@)
/* The micro version (3, if %LIBMODBUS_VERSION is 1.2.3) */
#define LIBMODBUS_VERSION_MICRO (@LIBMODBUS_VERSION_MICRO@)
/* The full version, like 1.2.3 */
#define LIBMODBUS_VERSION @LIBMODBUS_VERSION@
/* The full version, in string form (suited for string concatenation)
*/
#define LIBMODBUS_VERSION_STRING "@LIBMODBUS_VERSION@"
/* Numerically encoded version, eg. v1.2.3 is 0x010203 */
#define LIBMODBUS_VERSION_HEX ((LIBMODBUS_VERSION_MAJOR << 16) | \
(LIBMODBUS_VERSION_MINOR << 8) | \
(LIBMODBUS_VERSION_MICRO << 0))
/* Evaluates to True if the version is greater than @major, @minor and @micro
*/
#define LIBMODBUS_VERSION_CHECK(major,minor,micro) \
(LIBMODBUS_VERSION_MAJOR > (major) || \
(LIBMODBUS_VERSION_MAJOR == (major) && \
LIBMODBUS_VERSION_MINOR > (minor)) || \
(LIBMODBUS_VERSION_MAJOR == (major) && \
LIBMODBUS_VERSION_MINOR == (minor) && \
LIBMODBUS_VERSION_MICRO >= (micro)))
#endif /* MODBUS_VERSION_H */

1909
libmodbus-master/modbus.c Normal file
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293
libmodbus-master/modbus.h Normal file
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/*
* Copyright © 2001-2013 Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#ifndef MODBUS_H
#define MODBUS_H
/* Add this for macros that defined unix flavor */
#if (defined(__unix__) || defined(unix)) && !defined(USG)
#include <sys/param.h>
#endif
#ifndef _MSC_VER
#include <stdint.h>
#else
#include "stdint.h"
#endif
#include "modbus-version.h"
#if defined(_MSC_VER)
# if defined(DLLBUILD)
/* define DLLBUILD when building the DLL */
# define MODBUS_API __declspec(dllexport)
# else
# define MODBUS_API __declspec(dllimport)
# endif
#else
# define MODBUS_API
#endif
#ifdef __cplusplus
# define MODBUS_BEGIN_DECLS extern "C" {
# define MODBUS_END_DECLS }
#else
# define MODBUS_BEGIN_DECLS
# define MODBUS_END_DECLS
#endif
MODBUS_BEGIN_DECLS
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef OFF
#define OFF 0
#endif
#ifndef ON
#define ON 1
#endif
/* Modbus function codes */
#define MODBUS_FC_READ_COILS 0x01
#define MODBUS_FC_READ_DISCRETE_INPUTS 0x02
#define MODBUS_FC_READ_HOLDING_REGISTERS 0x03
#define MODBUS_FC_READ_INPUT_REGISTERS 0x04
#define MODBUS_FC_WRITE_SINGLE_COIL 0x05
#define MODBUS_FC_WRITE_SINGLE_REGISTER 0x06
#define MODBUS_FC_READ_EXCEPTION_STATUS 0x07
#define MODBUS_FC_WRITE_MULTIPLE_COILS 0x0F
#define MODBUS_FC_WRITE_MULTIPLE_REGISTERS 0x10
#define MODBUS_FC_REPORT_SLAVE_ID 0x11
#define MODBUS_FC_MASK_WRITE_REGISTER 0x16
#define MODBUS_FC_WRITE_AND_READ_REGISTERS 0x17
#define MODBUS_BROADCAST_ADDRESS 0
/* Modbus_Application_Protocol_V1_1b.pdf (chapter 6 section 1 page 12)
* Quantity of Coils to read (2 bytes): 1 to 2000 (0x7D0)
* (chapter 6 section 11 page 29)
* Quantity of Coils to write (2 bytes): 1 to 1968 (0x7B0)
*/
#define MODBUS_MAX_READ_BITS 2000
#define MODBUS_MAX_WRITE_BITS 1968
/* Modbus_Application_Protocol_V1_1b.pdf (chapter 6 section 3 page 15)
* Quantity of Registers to read (2 bytes): 1 to 125 (0x7D)
* (chapter 6 section 12 page 31)
* Quantity of Registers to write (2 bytes) 1 to 123 (0x7B)
* (chapter 6 section 17 page 38)
* Quantity of Registers to write in R/W registers (2 bytes) 1 to 121 (0x79)
*/
#define MODBUS_MAX_READ_REGISTERS 125
#define MODBUS_MAX_WRITE_REGISTERS 123
#define MODBUS_MAX_WR_WRITE_REGISTERS 121
#define MODBUS_MAX_WR_READ_REGISTERS 125
/* The size of the MODBUS PDU is limited by the size constraint inherited from
* the first MODBUS implementation on Serial Line network (max. RS485 ADU = 256
* bytes). Therefore, MODBUS PDU for serial line communication = 256 - Server
* address (1 byte) - CRC (2 bytes) = 253 bytes.
*/
#define MODBUS_MAX_PDU_LENGTH 253
/* Consequently:
* - RTU MODBUS ADU = 253 bytes + Server address (1 byte) + CRC (2 bytes) = 256
* bytes.
* - TCP MODBUS ADU = 253 bytes + MBAP (7 bytes) = 260 bytes.
* so the maximum of both backend in 260 bytes. This size can used to allocate
* an array of bytes to store responses and it will be compatible with the two
* backends.
*/
#define MODBUS_MAX_ADU_LENGTH 260
/* Random number to avoid errno conflicts */
#define MODBUS_ENOBASE 112345678
/* Protocol exceptions */
enum {
MODBUS_EXCEPTION_ILLEGAL_FUNCTION = 0x01,
MODBUS_EXCEPTION_ILLEGAL_DATA_ADDRESS,
MODBUS_EXCEPTION_ILLEGAL_DATA_VALUE,
MODBUS_EXCEPTION_SLAVE_OR_SERVER_FAILURE,
MODBUS_EXCEPTION_ACKNOWLEDGE,
MODBUS_EXCEPTION_SLAVE_OR_SERVER_BUSY,
MODBUS_EXCEPTION_NEGATIVE_ACKNOWLEDGE,
MODBUS_EXCEPTION_MEMORY_PARITY,
MODBUS_EXCEPTION_NOT_DEFINED,
MODBUS_EXCEPTION_GATEWAY_PATH,
MODBUS_EXCEPTION_GATEWAY_TARGET,
MODBUS_EXCEPTION_MAX
};
#define EMBXILFUN (MODBUS_ENOBASE + MODBUS_EXCEPTION_ILLEGAL_FUNCTION)
#define EMBXILADD (MODBUS_ENOBASE + MODBUS_EXCEPTION_ILLEGAL_DATA_ADDRESS)
#define EMBXILVAL (MODBUS_ENOBASE + MODBUS_EXCEPTION_ILLEGAL_DATA_VALUE)
#define EMBXSFAIL (MODBUS_ENOBASE + MODBUS_EXCEPTION_SLAVE_OR_SERVER_FAILURE)
#define EMBXACK (MODBUS_ENOBASE + MODBUS_EXCEPTION_ACKNOWLEDGE)
#define EMBXSBUSY (MODBUS_ENOBASE + MODBUS_EXCEPTION_SLAVE_OR_SERVER_BUSY)
#define EMBXNACK (MODBUS_ENOBASE + MODBUS_EXCEPTION_NEGATIVE_ACKNOWLEDGE)
#define EMBXMEMPAR (MODBUS_ENOBASE + MODBUS_EXCEPTION_MEMORY_PARITY)
#define EMBXGPATH (MODBUS_ENOBASE + MODBUS_EXCEPTION_GATEWAY_PATH)
#define EMBXGTAR (MODBUS_ENOBASE + MODBUS_EXCEPTION_GATEWAY_TARGET)
/* Native libmodbus error codes */
#define EMBBADCRC (EMBXGTAR + 1)
#define EMBBADDATA (EMBXGTAR + 2)
#define EMBBADEXC (EMBXGTAR + 3)
#define EMBUNKEXC (EMBXGTAR + 4)
#define EMBMDATA (EMBXGTAR + 5)
#define EMBBADSLAVE (EMBXGTAR + 6)
extern const unsigned int libmodbus_version_major;
extern const unsigned int libmodbus_version_minor;
extern const unsigned int libmodbus_version_micro;
typedef struct _modbus modbus_t;
typedef struct _modbus_mapping_t {
int nb_bits;
int start_bits;
int nb_input_bits;
int start_input_bits;
int nb_input_registers;
int start_input_registers;
int nb_registers;
int start_registers;
uint8_t *tab_bits;
uint8_t *tab_input_bits;
uint16_t *tab_input_registers;
uint16_t *tab_registers;
} modbus_mapping_t;
typedef enum
{
MODBUS_ERROR_RECOVERY_NONE = 0,
MODBUS_ERROR_RECOVERY_LINK = (1<<1),
MODBUS_ERROR_RECOVERY_PROTOCOL = (1<<2)
} modbus_error_recovery_mode;
MODBUS_API int modbus_set_slave(modbus_t* ctx, int slave);
MODBUS_API int modbus_get_slave(modbus_t* ctx);
MODBUS_API int modbus_set_error_recovery(modbus_t *ctx, modbus_error_recovery_mode error_recovery);
MODBUS_API int modbus_set_socket(modbus_t *ctx, int s);
MODBUS_API int modbus_get_socket(modbus_t *ctx);
MODBUS_API int modbus_get_response_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec);
MODBUS_API int modbus_set_response_timeout(modbus_t *ctx, uint32_t to_sec, uint32_t to_usec);
MODBUS_API int modbus_get_byte_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec);
MODBUS_API int modbus_set_byte_timeout(modbus_t *ctx, uint32_t to_sec, uint32_t to_usec);
MODBUS_API int modbus_get_indication_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec);
MODBUS_API int modbus_set_indication_timeout(modbus_t *ctx, uint32_t to_sec, uint32_t to_usec);
MODBUS_API int modbus_get_header_length(modbus_t *ctx);
MODBUS_API int modbus_connect(modbus_t *ctx);
MODBUS_API void modbus_close(modbus_t *ctx);
MODBUS_API void modbus_free(modbus_t *ctx);
MODBUS_API int modbus_flush(modbus_t *ctx);
MODBUS_API int modbus_set_debug(modbus_t *ctx, int flag);
MODBUS_API const char *modbus_strerror(int errnum);
MODBUS_API int modbus_read_bits(modbus_t *ctx, int addr, int nb, uint8_t *dest);
MODBUS_API int modbus_read_input_bits(modbus_t *ctx, int addr, int nb, uint8_t *dest);
MODBUS_API int modbus_read_registers(modbus_t *ctx, int addr, int nb, uint16_t *dest);
MODBUS_API int modbus_read_input_registers(modbus_t *ctx, int addr, int nb, uint16_t *dest);
MODBUS_API int modbus_write_bit(modbus_t *ctx, int coil_addr, int status);
MODBUS_API int modbus_write_register(modbus_t *ctx, int reg_addr, int value);
MODBUS_API int modbus_write_bits(modbus_t *ctx, int addr, int nb, const uint8_t *data);
MODBUS_API int modbus_write_registers(modbus_t *ctx, int addr, int nb, const uint16_t *data);
MODBUS_API int modbus_mask_write_register(modbus_t *ctx, int addr, uint16_t and_mask, uint16_t or_mask);
MODBUS_API int modbus_write_and_read_registers(modbus_t *ctx, int write_addr, int write_nb,
const uint16_t *src, int read_addr, int read_nb,
uint16_t *dest);
MODBUS_API int modbus_report_slave_id(modbus_t *ctx, int max_dest, uint8_t *dest);
MODBUS_API modbus_mapping_t* modbus_mapping_new_start_address(
unsigned int start_bits, unsigned int nb_bits,
unsigned int start_input_bits, unsigned int nb_input_bits,
unsigned int start_registers, unsigned int nb_registers,
unsigned int start_input_registers, unsigned int nb_input_registers);
MODBUS_API modbus_mapping_t* modbus_mapping_new(int nb_bits, int nb_input_bits,
int nb_registers, int nb_input_registers);
MODBUS_API void modbus_mapping_free(modbus_mapping_t *mb_mapping);
MODBUS_API int modbus_send_raw_request(modbus_t *ctx, uint8_t *raw_req, int raw_req_length);
MODBUS_API int modbus_receive(modbus_t *ctx, uint8_t *req);
MODBUS_API int modbus_receive_confirmation(modbus_t *ctx, uint8_t *rsp);
MODBUS_API int modbus_reply(modbus_t *ctx, const uint8_t *req,
int req_length, modbus_mapping_t *mb_mapping);
MODBUS_API int modbus_reply_exception(modbus_t *ctx, const uint8_t *req,
unsigned int exception_code);
/**
* UTILS FUNCTIONS
**/
#define MODBUS_GET_HIGH_BYTE(data) (((data) >> 8) & 0xFF)
#define MODBUS_GET_LOW_BYTE(data) ((data) & 0xFF)
#define MODBUS_GET_INT64_FROM_INT16(tab_int16, index) \
(((int64_t)tab_int16[(index) ] << 48) + \
((int64_t)tab_int16[(index) + 1] << 32) + \
((int64_t)tab_int16[(index) + 2] << 16) + \
(int64_t)tab_int16[(index) + 3])
#define MODBUS_GET_INT32_FROM_INT16(tab_int16, index) ((tab_int16[(index)] << 16) + tab_int16[(index) + 1])
#define MODBUS_GET_INT16_FROM_INT8(tab_int8, index) ((tab_int8[(index)] << 8) + tab_int8[(index) + 1])
#define MODBUS_SET_INT16_TO_INT8(tab_int8, index, value) \
do { \
tab_int8[(index)] = (value) >> 8; \
tab_int8[(index) + 1] = (value) & 0xFF; \
} while (0)
#define MODBUS_SET_INT32_TO_INT16(tab_int16, index, value) \
do { \
tab_int16[(index) ] = (value) >> 16; \
tab_int16[(index) + 1] = (value); \
} while (0)
#define MODBUS_SET_INT64_TO_INT16(tab_int16, index, value) \
do { \
tab_int16[(index) ] = (value) >> 48; \
tab_int16[(index) + 1] = (value) >> 32; \
tab_int16[(index) + 2] = (value) >> 16; \
tab_int16[(index) + 3] = (value); \
} while (0)
MODBUS_API void modbus_set_bits_from_byte(uint8_t *dest, int idx, const uint8_t value);
MODBUS_API void modbus_set_bits_from_bytes(uint8_t *dest, int idx, unsigned int nb_bits,
const uint8_t *tab_byte);
MODBUS_API uint8_t modbus_get_byte_from_bits(const uint8_t *src, int idx, unsigned int nb_bits);
MODBUS_API float modbus_get_float(const uint16_t *src);
MODBUS_API float modbus_get_float_abcd(const uint16_t *src);
MODBUS_API float modbus_get_float_dcba(const uint16_t *src);
MODBUS_API float modbus_get_float_badc(const uint16_t *src);
MODBUS_API float modbus_get_float_cdab(const uint16_t *src);
MODBUS_API void modbus_set_float(float f, uint16_t *dest);
MODBUS_API void modbus_set_float_abcd(float f, uint16_t *dest);
MODBUS_API void modbus_set_float_dcba(float f, uint16_t *dest);
MODBUS_API void modbus_set_float_badc(float f, uint16_t *dest);
MODBUS_API void modbus_set_float_cdab(float f, uint16_t *dest);
#include "modbus-tcp.h"
#include "modbus-rtu.h"
MODBUS_END_DECLS
#endif /* MODBUS_H */

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# Windows makefile
# --
# use mingw make
# Get make-3.82-5-mingw32-bin.tar.lzma from
# http://sourceforge.net/projects/mingw/files/MinGW/Extension/make/make-3.82-mingw32/
# --
# Set CC=gcc or CC=cl for the pre-defined compilers
# before using this Makefile
# --
# Compile and link the bandwidth and random tests.
# Build modbus.dll and the import library before building the tests
# modbus.lib/libmodbus.a (the import library) should be in this directory
# modbus.dll should be in this directory or in path
INCLUDES:=-I../.. -I.. -I.
ifeq ($(CC),cl)
DEFS+=-D_CRT_SECURE_NO_DEPRECATE=1 -D_CRT_NONSTDC_NO_DEPRECATE=1
CFLAGS=-Zi -W3 -MT -ID:/include/msvc_std
LDOPTS=-link -incremental:NO
LDLIBS=-Fe$@ ws2_32.lib modbus.lib $(LDOPTS)
RES:=res
RCOUT=
endif
ifeq ($(CC),gcc)
CFLAGS=-g -Wall -O -static -static-libgcc
LDLIBS=-o$@ -lws2_32 -luser32 -L. -lmodbus
LDOPTS=
RES:=o
RCOUT=-o$@
endif
CFLAGS+=-DHAVE_CONFIG_H $(DEFS) $(INCLUDES)
.SUFFIXES:
.SUFFIXES: .c .rc .$(RES) .$(oo)
# pattern rule for resources
%.$(RES) : %.rc
$(RC) $< $(RCOUT)
vpath %.c ../../tests
vpath %.h ../src
all: random-test-client random-test-server bandwidth-client bandwidth-server-one
random-test-client: random-test-client.c
$(LINK.c) $^ $(LDLIBS)
random-test-server: random-test-server.c
$(LINK.c) $^ $(LDLIBS)
bandwidth-server-one: bandwidth-server-one.c
$(LINK.c) $^ $(LDLIBS)
bandwidth-client: bandwidth-client.c
$(LINK.c) $^ $(LDLIBS)
clean:
-@cmd "/c del /Q /S $(OBJS) *.o *.obj *.exe *.pdb *.ilk *.ncb *.res *.dll *.exp *.lib *.ncb *.a *.map *.asm" > NUL: 2>&1

20
libmodbus-master/win32/README.win32 Normal file
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Intro
-----
This directory contains the project file for Visual Studio 2008 to build
modbus.dll and the import library modbus.lib.
The project file looks for D:/include/msvc_std to find stdint.h.
See ../../README.md file.
config.h and ../modbus-version.h are generated using configure.js.
Run
cscript configure.js
or
wscript configure.js
or
double click configure.js to generate these files.
To get project file for Visual Studio 2005 open copy of file modbus.vcproj in
editor and change attribute `Version` of `VisualStudioProject` tag to "8,00".

167
libmodbus-master/win32/config.h.win32 Normal file
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/* config.h. Generated from config.h.in by configure. */
/* config.h.in. Generated from configure.ac by autoheader. */
/* Define to 1 if you have the <arpa/inet.h> header file. */
/* #undef HAVE_ARPA_INET_H */
/* Define to 1 if you have the declaration of `TIOCSRS485', and to 0 if you
don't. */
/* #undef HAVE_DECL_TIOCSRS485 */
/* Define to 1 if you have the declaration of `__CYGWIN__', and to 0 if you
don't. */
/* #undef HAVE_DECL___CYGWIN__ */
/* Define to 1 if you have the <dlfcn.h> header file. */
/* #undef HAVE_DLFCN_H */
/* Define to 1 if you have the <errno.h> header file. */
#define HAVE_ERRNO_H 1
/* Define to 1 if you have the <fcntl.h> header file. */
#define HAVE_FCNTL_H 1
/* Define to 1 if you have the `fork' function. */
/* #undef HAVE_FORK */
/* Define to 1 if you have the `getaddrinfo' function. */
/* #undef HAVE_GETADDRINFO */
/* Define to 1 if you have the `gettimeofday' function. */
/* #undef HAVE_GETTIMEOFDAY */
/* Define to 1 if you have the `inet_ntoa' function. */
/* #undef HAVE_INET_NTOA */
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the <limits.h> header file. */
#define HAVE_LIMITS_H 1
/* Define to 1 if you have the <linux/serial.h> header file. */
/* #undef HAVE_LINUX_SERIAL_H */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Define to 1 if you have the `memset' function. */
#define HAVE_MEMSET 1
/* Define to 1 if you have the <netdb.h> header file. */
/* #undef HAVE_NETDB_H */
/* Define to 1 if you have the <netinet/in.h> header file. */
/* #undef HAVE_NETINET_IN_H */
/* Define to 1 if you have the <netinet/tcp.h> header file. */
/* #undef HAVE_NETINET_TCP_H */
/* Define to 1 if you have the `select' function. */
/* #undef HAVE_SELECT */
/* Define to 1 if you have the `socket' function. */
/* #undef HAVE_SOCKET */
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the `strerror' function. */
#define HAVE_STRERROR 1
/* Define to 1 if you have the <strings.h> header file. */
/* #undef HAVE_STRINGS_H */
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the `strlcpy' function. */
/* #undef HAVE_STRLCPY */
/* Define to 1 if you have the <sys/ioctl.h> header file. */
/* #undef HAVE_SYS_IOCTL_H */
/* Define to 1 if you have the <sys/socket.h> header file. */
/* #undef HAVE_SYS_SOCKET_H */
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/time.h> header file. */
/* #undef HAVE_SYS_TIME_H */
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <termios.h> header file. */
/* #undef HAVE_TERMIOS_H */
/* Define to 1 if you have the <time.h> header file. */
#define HAVE_TIME_H 1
/* Define to 1 if you have the <unistd.h> header file. */
/* #undef HAVE_UNISTD_H */
/* Define to 1 if you have the `vfork' function. */
/* #undef HAVE_VFORK */
/* Define to 1 if you have the <vfork.h> header file. */
/* #undef HAVE_VFORK_H */
/* Define to 1 if you have the <winsock2.h> header file. */
#define HAVE_WINSOCK2_H 1
/* Define to 1 if `fork' works. */
/* #undef HAVE_WORKING_FORK */
/* Define to 1 if `vfork' works. */
/* #undef HAVE_WORKING_VFORK */
/* Define to the sub-directory in which libtool stores uninstalled libraries.
*/
/* #undef LT_OBJDIR */
/* Name of package */
#define PACKAGE "libmodbus"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT "https://github.com/stephane/libmodbus/issues"
/* Define to the full name of this package. */
#define PACKAGE_NAME "libmodbus"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "libmodbus @LIBMODBUS_VERSION@"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "libmodbus"
/* Define to the home page for this package. */
#define PACKAGE_URL ""
/* Define to the version of this package. */
#define PACKAGE_VERSION "@LIBMODBUS_VERSION@"
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
/* #undef TIME_WITH_SYS_TIME */
/* Version number of package */
#define VERSION "@LIBMODBUS_VERSION@"
/* Define to empty if `const' does not conform to ANSI C. */
/* #undef const */
/* Define to `int' if <sys/types.h> does not define. */
/* #undef pid_t */
/* Define to `unsigned int' if <sys/types.h> does not define. */
/* #undef size_t */
/* Define as `fork' if `vfork' does not work. */
#define vfork fork

163
libmodbus-master/win32/configure.js Normal file
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/* Configure script for modbus.dll, specific for Windows with Scripting Host.
*
* Inspired by configure.js from libxml2
*
* oldfaber < oldfaber _at_ gmail _dot_ com >
*
*/
/* The source directory, relative to the one where this file resides. */
var srcDir = "..";
/* Base name of what we are building. */
var baseName = "modbus";
/* Configure file template and output file */
var configFile = srcDir + "\\..\\configure.ac";
/* Input and output files for the modbus-version.h include */
var newfile;
/* Version strings for the binary distribution. Will be filled later in the code. */
var verMajor;
var verMinor;
var verMicro;
/* modbus features. */
var dryRun = false;
/* Win32 build options. NOT used yet */
var compiler = "msvc";
/* Local stuff */
var error = 0;
/* Filename */
var newFile;
/* Displays the details about how to use this script. */
function usage() {
var txt;
txt = "Usage:\n";
txt += " cscript " + WScript.ScriptName + " <options>\n";
txt += " cscript " + WScript.ScriptName + " help\n\n";
txt += "Options can be specified in the form <option>=<value>, where the value is\n";
txt += "either 'yes' or 'no', if not stated otherwise.\n\n";
txt += "\nModbus library configure options, default value given in parentheses:\n\n";
txt += " dry-run: Run configure without creating files (" + (dryRun ? "yes" : "no") + ")\n";
txt += "\nWin32 build options, default value given in parentheses:\n\n";
txt += " compiler: Compiler to be used [msvc|mingw] (" + compiler + ")\n";
WScript.Echo(txt);
}
/* read the version from the configuration file */
function readVersion() {
var fso, cf, ln, s;
fso = new ActiveXObject("Scripting.FileSystemObject");
cf = fso.OpenTextFile(configFile, 1);
while (cf.AtEndOfStream !== true) {
ln = cf.ReadLine();
s = new String(ln);
if (s.search(/^m4_define\(\[libmodbus_version_major/) != -1) {
verMajor = s.substr(s.indexOf(",") + 3, 1);
} else if (s.search(/^m4_define\(\[libmodbus_version_minor/) != -1) {
verMinor = s.substr(s.indexOf(",") + 3, 1);
} else if (s.search(/^m4_define\(\[libmodbus_version_micro/) != -1) {
verMicro = s.substr(s.indexOf(",") + 3, 1);
}
}
cf.Close();
}
/* create the versioned file */
function createVersionedFile(newfile, unversioned) {
var fso, ofi, of, ln, s;
fso = new ActiveXObject("Scripting.FileSystemObject");
ofi = fso.OpenTextFile(unversioned, 1);
if (!dryRun) {
of = fso.CreateTextFile(newfile, true);
}
while (ofi.AtEndOfStream !== true) {
ln = ofi.ReadLine();
s = new String(ln);
if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MAJOR\@/) != -1) {
of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MAJOR\@/, verMajor));
} else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MINOR\@/) != -1) {
of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MINOR\@/, verMinor));
} else if (!dryRun && s.search(/\@LIBMODBUS_VERSION_MICRO\@/) != -1) {
of.WriteLine(s.replace(/\@LIBMODBUS_VERSION_MICRO\@/, verMicro));
} else if (!dryRun && s.search(/\@LIBMODBUS_VERSION\@/) != -1) {
of.WriteLine(s.replace(/\@LIBMODBUS_VERSION\@/, verMajor + "." + verMinor + "." + verMicro));
} else {
if (!dryRun) {
of.WriteLine(ln);
}
}
}
ofi.Close();
if (!dryRun) {
of.Close();
}
}
/*
* main(),
* Execution begins here.
*/
// Parse the command-line arguments.
for (i = 0; (i < WScript.Arguments.length) && (error === 0); i++) {
var arg, opt;
arg = WScript.Arguments(i);
opt = arg.substring(0, arg.indexOf("="));
if (opt.length > 0) {
if (opt == "dry-run") {
var str = arg.substring(opt.length + 1, arg.length);
if (opt == 1 || opt == "yes") {
dryRun = true;
}
} else if (opt == "compiler") {
compiler = arg.substring(opt.length + 1, arg.length);
} else {
error = 1;
}
} else if (i === 0) {
if (arg == "help") {
usage();
WScript.Quit(0);
}
} else {
error = 1;
}
}
// If we fail here, it is because the user supplied an unrecognised argument.
if (error !== 0) {
usage();
WScript.Quit(error);
}
// Read the the version.
readVersion();
if (error !== 0) {
WScript.Echo("Version discovery failed, aborting.");
WScript.Quit(error);
}
newfile = srcDir + "\\modbus-version.h";
createVersionedFile(newfile, srcDir + "\\modbus-version.h.in");
if (error !== 0) {
WScript.Echo("Creation of " + newfile + " failed, aborting.");
WScript.Quit(error);
}
newfile = "modbus.dll.manifest";
createVersionedFile(newfile, "modbus.dll.manifest.in");
if (error !== 0) {
WScript.Echo("Creation of " + newfile + " failed, aborting.");
WScript.Quit(error);
}
newfile = "config.h";
createVersionedFile(newfile, "config.h.win32");
if (error !== 0) {
WScript.Echo("Creation of " + newfile + " failed, aborting.");
WScript.Quit(error);
}
WScript.Echo("\nLibmodbus configuration completed\n");

20
libmodbus-master/win32/modbus-9.sln Normal file
View File

@@ -0,0 +1,20 @@
Microsoft Visual Studio Solution File, Format Version 10.00
# Visual C++ Express 2008
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "modbus", "modbus.vcproj", "{498E0845-C7F4-438B-8EDE-EF7FC9A74430}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
Release|Win32 = Release|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{498E0845-C7F4-438B-8EDE-EF7FC9A74430}.Debug|Win32.ActiveCfg = Debug|Win32
{498E0845-C7F4-438B-8EDE-EF7FC9A74430}.Debug|Win32.Build.0 = Debug|Win32
{498E0845-C7F4-438B-8EDE-EF7FC9A74430}.Release|Win32.ActiveCfg = Release|Win32
{498E0845-C7F4-438B-8EDE-EF7FC9A74430}.Release|Win32.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

14
libmodbus-master/win32/modbus.dll.manifest.in Normal file
View File

@@ -0,0 +1,14 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<assemblyIdentity version="@LIBMODBUS_VERSION@" processorArchitecture="*" name="modbus"/>
<description>Zsh shell</description>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
<security>
<requestedPrivileges>
<requestedExecutionLevel level="asInvoker" uiAccess="false"/>
</requestedPrivileges>
</security>
</trustInfo>
<dependency>
</dependency>
</assembly>

55
libmodbus-master/win32/modbus.rc Normal file
View File

@@ -0,0 +1,55 @@
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "config.h"
#include "../modbus-version.h"
#define VERSTRING PACKAGE_VERSION
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
VS_VERSION_INFO VERSIONINFO
FILEVERSION LIBMODBUS_VERSION_MAJOR, LIBMODBUS_VERSION_MINOR, LIBMODBUS_VERSION_MICRO, 2
PRODUCTVERSION LIBMODBUS_VERSION_MAJOR, LIBMODBUS_VERSION_MINOR, LIBMODBUS_VERSION_MICRO, 2
#if defined(DEBUG) || defined(W32DEBUG)
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS VOS_NT_WINDOWS32
FILETYPE VFT_DLL
{
BLOCK "StringFileInfo"
{
BLOCK "000004E4"
{
VALUE "CompanyName", "\x0"
VALUE "FileDescription", "libmodbus DLL\x0"
#if defined(__MINGW32__) && !defined(__MINGW64__)
VALUE "FileVersion", VERSTRING " (gcc)"
#endif
#if defined(__MINGW64__)
VALUE "FileVersion", VERSTRING " (gcc64)"
#endif
#if defined(_MSC_VER)
# if defined(MSC64)
VALUE "FileVersion", VERSTRING " (cl64)"
# else
VALUE "FileVersion", VERSTRING " (cl)"
# endif
#endif
VALUE "InternalName", "modbus.dll"
VALUE "LegalCopyright", "© See libmodbus.org"
VALUE "OriginalFilename", "modbus.dll"
VALUE "ProductName", "libmodbus"
}
}
BLOCK "VarFileInfo"
{
VALUE "Translation", 0x0, 1252
}
}
// Manifest
#if (_MSC_VER >= 1400)
// CAVEAT: the manifest has a version string THAT MUST MATCH the DLL version
CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST "modbus.dll.manifest"
#endif

457
libmodbus-master/win32/modbus.vcproj Normal file
View File

@@ -0,0 +1,457 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="9,00"
Name="modbus"
ProjectGUID="{498E0845-C7F4-438B-8EDE-EF7FC9A74430}"
RootNamespace="modbus"
Keyword="Win32Proj"
TargetFrameworkVersion="131072"
>
<Platforms>
<Platform
Name="Win32"
/>
<Platform
Name="x64"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="$(SolutionDir)"
IntermediateDirectory="$(ConfigurationName)"
ConfigurationType="2"
CharacterSet="2"
EnableManagedIncrementalBuild="0"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine=""
/>
<Tool
Name="VCCustomBuildTool"
Description=""
CommandLine=""
AdditionalDependencies=""
Outputs=""
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
EnableIntrinsicFunctions="true"
WholeProgramOptimization="false"
AdditionalIncludeDirectories="..\src;..;.;D:/include/msvc_std"
PreprocessorDefinitions="W32DEBUG;HAVE_CONFIG_H;DLLBUILD;_CRT_SECURE_NO_DEPRECATE=1;_CRT_NONSTDC_NO_DEPRECATE=1"
MinimalRebuild="false"
ExceptionHandling="0"
BasicRuntimeChecks="2"
RuntimeLibrary="1"
FloatingPointModel="2"
UsePrecompiledHeader="0"
WarningLevel="3"
DebugInformationFormat="3"
CompileAs="1"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
PreprocessorDefinitions="_MSC_VER"
ResourceOutputFileName="$(SolutionDir)/modbus.res"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalDependencies="ws2_32.lib"
Version="1.0.0"
LinkIncremental="1"
AdditionalLibraryDirectories=""
GenerateManifest="true"
GenerateDebugInformation="true"
GenerateMapFile="true"
SubSystem="1"
RandomizedBaseAddress="0"
DataExecutionPrevention="0"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
SuppressStartupBanner="true"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="$(SolutionDir)"
IntermediateDirectory="$(ConfigurationName)"
ConfigurationType="2"
CharacterSet="2"
WholeProgramOptimization="1"
EnableManagedIncrementalBuild="0"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine=""
/>
<Tool
Name="VCCustomBuildTool"
Description=""
CommandLine=""
AdditionalDependencies=""
Outputs=""
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
EnableIntrinsicFunctions="true"
WholeProgramOptimization="false"
AdditionalIncludeDirectories="..\src;..;.;D:/include/msvc_std"
PreprocessorDefinitions="HAVE_CONFIG_H;DLLBUILD;_CRT_SECURE_NO_DEPRECATE=1;_CRT_NONSTDC_NO_DEPRECATE=1"
ExceptionHandling="0"
RuntimeLibrary="0"
EnableFunctionLevelLinking="false"
FloatingPointModel="2"
UsePrecompiledHeader="0"
WarningLevel="3"
DebugInformationFormat="0"
CompileAs="1"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
AdditionalOptions=""
AdditionalDependencies="ws2_32.lib"
LinkIncremental="0"
GenerateManifest="true"
GenerateDebugInformation="true"
SubSystem="1"
StackReserveSize="1048576"
StackCommitSize="524288"
OptimizeReferences="2"
EnableCOMDATFolding="2"
LinkTimeCodeGeneration="0"
EntryPointSymbol=""
RandomizedBaseAddress="1"
DataExecutionPrevention="0"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
SuppressStartupBanner="false"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Debug|x64"
OutputDirectory="$(SolutionDir)$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine=""
/>
<Tool
Name="VCCustomBuildTool"
Description=""
CommandLine=""
AdditionalDependencies=""
Outputs=""
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
WholeProgramOptimization="false"
AdditionalIncludeDirectories="$(SolutionDir)"
PreprocessorDefinitions=""
MinimalRebuild="false"
BasicRuntimeChecks="3"
RuntimeLibrary="0"
UsePrecompiledHeader="0"
WarningLevel="3"
DebugInformationFormat="3"
CompileAs="1"
DisableSpecificWarnings="4244;4267"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="2"
GenerateDebugInformation="true"
SubSystem="1"
StackReserveSize="1048576"
StackCommitSize="524288"
TargetMachine="17"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|x64"
OutputDirectory="$(SolutionDir)$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
CommandLine=""
/>
<Tool
Name="VCCustomBuildTool"
Description=""
CommandLine=""
AdditionalDependencies=""
Outputs=""
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
EnableIntrinsicFunctions="true"
WholeProgramOptimization="false"
AdditionalIncludeDirectories="$(SolutionDir)"
PreprocessorDefinitions=""
RuntimeLibrary="0"
EnableFunctionLevelLinking="true"
UsePrecompiledHeader="0"
WarningLevel="3"
DebugInformationFormat="3"
CompileAs="1"
DisableSpecificWarnings="4244;4267"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="1"
GenerateDebugInformation="true"
SubSystem="1"
StackReserveSize="1048576"
StackCommitSize="524288"
OptimizeReferences="2"
EnableCOMDATFolding="2"
LinkTimeCodeGeneration="0"
TargetMachine="17"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
>
<File
RelativePath="..\modbus-data.c"
>
</File>
<File
RelativePath="..\modbus-rtu.c"
>
</File>
<File
RelativePath="..\modbus-tcp.c"
>
</File>
<File
RelativePath="..\modbus.c"
>
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc;xsd"
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
>
<File
RelativePath="config.h"
>
</File>
<File
RelativePath="..\modbus-private.h"
>
</File>
<File
RelativePath="..\modbus-rtu-private.h"
>
</File>
<File
RelativePath="..\modbus-rtu.h"
>
</File>
<File
RelativePath="..\modbus-tcp-private.h"
>
</File>
<File
RelativePath="..\modbus-tcp.h"
>
</File>
<File
RelativePath="modbus-version.h"
>
</File>
<File
RelativePath="..\modbus.h"
>
</File>
</Filter>
<Filter
Name="Resource Files"
Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
>
<File
RelativePath=".\modbus.rc"
>
</File>
</Filter>
</Files>
<Globals>
</Globals>
</VisualStudioProject>