Initial commit

3 files changed, 380 insertions, 0 deletions

diff --git a/tests/unit-test-server b/tests/unit-test-server
new file mode 100755
index 0000000..a8d1c0e
--- /dev/null
+++ b/tests/unit-test-server
@@ -0,0 +1,225 @@
+#! /bin/bash
+
+# unit-test-server - temporary wrapper script for .libs/unit-test-server
+# Generated by libtool (GNU libtool) 2.4 Debian-2.4-3
+#
+# The unit-test-server program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command="(cd /home/jmccrohan/bin/libmodbus/tests; { test -z \"\${LIBRARY_PATH+set}\" || unset LIBRARY_PATH || { LIBRARY_PATH=; export LIBRARY_PATH; }; }; { test -z \"\${COMPILER_PATH+set}\" || unset COMPILER_PATH || { COMPILER_PATH=; export COMPILER_PATH; }; }; { test -z \"\${GCC_EXEC_PREFIX+set}\" || unset GCC_EXEC_PREFIX || { GCC_EXEC_PREFIX=; export GCC_EXEC_PREFIX; }; }; { test -z \"\${LD_RUN_PATH+set}\" || unset LD_RUN_PATH || { LD_RUN_PATH=; export LD_RUN_PATH; }; }; { test -z \"\${LD_LIBRARY_PATH+set}\" || unset LD_LIBRARY_PATH || { LD_LIBRARY_PATH=; export LD_LIBRARY_PATH; }; }; PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11; export PATH; gcc -g -O2 -g -O2 -Wall -Werror -o \$progdir/\$file unit-test-server.o  ../src/.libs/libmodbus.so -Wl,-rpath -Wl,/home/jmccrohan/bin/libmodbus/src/.libs)"
+
+# This environment variable determines our operation mode.
+if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='2.4'
+  notinst_deplibs=' ../src/libmodbus.la'
+else
+  # When we are sourced in execute mode, $file and $ECHO are already set.
+  if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
+    file="$0"
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+    ECHO="printf %s\\n"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ which is used only on
+# windows platforms, and (c) all begin with the string --lt-
+# (application programs are unlikely to have options which match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's ../libtool value, followed by no.
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=$0
+  shift
+  for lt_opt
+  do
+    case "$lt_opt" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%/[^/]*$%%'`
+        test "X$lt_dump_D" = "X$lt_script_arg0" && lt_dump_D=.
+        lt_dump_F=`$ECHO "X$lt_script_arg0" | /bin/sed -e 's/^X//' -e 's%^.*/%%'`
+        cat "$lt_dump_D/$lt_dump_F"
+        exit 0
+      ;;
+    --lt-*)
+        $ECHO "Unrecognized --lt- option: '$lt_opt'" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n "$lt_option_debug"; then
+    echo "unit-test-server:unit-test-server:${LINENO}: libtool wrapper (GNU libtool) 2.4 Debian-2.4-3" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    $ECHO "unit-test-server:unit-test-server:${LINENO}: newargv[$lt_dump_args_N]: $lt_arg"
+    lt_dump_args_N=`expr $lt_dump_args_N + 1`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+
+      if test -n "$lt_option_debug"; then
+        $ECHO "unit-test-server:unit-test-server:${LINENO}: newargv[0]: $progdir/$program" 1>&2
+        func_lt_dump_args ${1+"$@"} 1>&2
+      fi
+      exec "$progdir/$program" ${1+"$@"}
+
+      $ECHO "$0: cannot exec $program $*" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from $@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  for lt_wr_arg
+  do
+    case $lt_wr_arg in
+    --lt-*) ;;
+    *) set x "$@" "$lt_wr_arg"; shift;;
+    esac
+    shift
+  done
+  func_exec_program_core ${1+"$@"}
+}
+
+  # Parse options
+  func_parse_lt_options "$0" ${1+"$@"}
+
+  # Find the directory that this script lives in.
+  thisdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
+  test "x$thisdir" = "x$file" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
+  while test -n "$file"; do
+    destdir=`$ECHO "$file" | /bin/sed 's%/[^/]*$%%'`
+
+    # If there was a directory component, then change thisdir.
+    if test "x$destdir" != "x$file"; then
+      case "$destdir" in
+      [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
+      *) thisdir="$thisdir/$destdir" ;;
+      esac
+    fi
+
+    file=`$ECHO "$file" | /bin/sed 's%^.*/%%'`
+    file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=no
+  if test "$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR" = "yes"; then
+    # special case for '.'
+    if test "$thisdir" = "."; then
+      thisdir=`pwd`
+    fi
+    # remove .libs from thisdir
+    case "$thisdir" in
+    *[\\/].libs ) thisdir=`$ECHO "$thisdir" | /bin/sed 's%[\\/][^\\/]*$%%'` ;;
+    .libs )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=`cd "$thisdir" && pwd`
+  test -n "$absdir" && thisdir="$absdir"
+
+  program=lt-'unit-test-server'
+  progdir="$thisdir/.libs"
+
+  if test ! -f "$progdir/$program" ||
+     { file=`ls -1dt "$progdir/$program" "$progdir/../$program" 2>/dev/null | /bin/sed 1q`; \
+       test "X$file" != "X$progdir/$program"; }; then
+
+    file="$$-$program"
+
+    if test ! -d "$progdir"; then
+      mkdir "$progdir"
+    else
+      rm -f "$progdir/$file"
+    fi
+
+    # relink executable if necessary
+    if test -n "$relink_command"; then
+      if relink_command_output=`eval $relink_command 2>&1`; then :
+      else
+	printf %s\n "$relink_command_output" >&2
+	rm -f "$progdir/$file"
+	exit 1
+      fi
+    fi
+
+    mv -f "$progdir/$file" "$progdir/$program" 2>/dev/null ||
+    { rm -f "$progdir/$program";
+      mv -f "$progdir/$file" "$progdir/$program"; }
+    rm -f "$progdir/$file"
+  fi
+
+  if test -f "$progdir/$program"; then
+    if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
+      # Run the actual program with our arguments.
+      func_exec_program ${1+"$@"}
+    fi
+  else
+    # The program doesn't exist.
+    $ECHO "$0: error: \`$progdir/$program' does not exist" 1>&2
+    $ECHO "This script is just a wrapper for $program." 1>&2
+    $ECHO "See the libtool documentation for more information." 1>&2
+    exit 1
+  fi
+fi
diff --git a/tests/unit-test-server.c b/tests/unit-test-server.c
new file mode 100644
index 0000000..9a986c5
--- /dev/null
+++ b/tests/unit-test-server.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright © 2008-2010 Stéphane Raimbault <stephane.raimbault@gmail.com>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <modbus.h>
+
+#include "unit-test.h"
+
+enum {
+    TCP,
+    TCP_PI,
+    RTU
+};
+
+int main(int argc, char*argv[])
+{
+    int socket;
+    modbus_t *ctx;
+    modbus_mapping_t *mb_mapping;
+    int rc;
+    int i;
+    int use_backend;
+    uint8_t *query;
+    int header_length;
+
+    if (argc > 1) {
+        if (strcmp(argv[1], "tcp") == 0) {
+            use_backend = TCP;
+        } else if (strcmp(argv[1], "tcppi") == 0) {
+            use_backend = TCP_PI;
+        } else if (strcmp(argv[1], "rtu") == 0) {
+            use_backend = RTU;
+        } else {
+            printf("Usage:\n  %s [tcp|tcppi|rtu] - Modbus server for unit testing\n\n", argv[0]);
+            return -1;
+        }
+    } else {
+        /* By default */
+        use_backend = TCP;
+    }
+
+    if (use_backend == TCP) {
+        ctx = modbus_new_tcp("127.0.0.1", 1502);
+        query = malloc(MODBUS_TCP_MAX_ADU_LENGTH);
+    } else if (use_backend == TCP_PI) {
+        ctx = modbus_new_tcp_pi("::0", "1502");
+        query = malloc(MODBUS_TCP_MAX_ADU_LENGTH);
+    } else {
+        ctx = modbus_new_rtu("/dev/ttyUSB0", 115200, 'N', 8, 1);
+        modbus_set_slave(ctx, SERVER_ID);
+        query = malloc(MODBUS_RTU_MAX_ADU_LENGTH);
+    }
+    header_length = modbus_get_header_length(ctx);
+
+    modbus_set_debug(ctx, TRUE);
+
+    mb_mapping = modbus_mapping_new(
+        UT_BITS_ADDRESS + UT_BITS_NB,
+        UT_INPUT_BITS_ADDRESS + UT_INPUT_BITS_NB,
+        UT_REGISTERS_ADDRESS + UT_REGISTERS_NB,
+        UT_INPUT_REGISTERS_ADDRESS + UT_INPUT_REGISTERS_NB);
+    if (mb_mapping == NULL) {
+        fprintf(stderr, "Failed to allocate the mapping: %s\n",
+                modbus_strerror(errno));
+        modbus_free(ctx);
+        return -1;
+    }
+
+    /* Examples from PI_MODBUS_300.pdf.
+       Only the read-only input values are assigned. */
+
+    /** INPUT STATUS **/
+    modbus_set_bits_from_bytes(mb_mapping->tab_input_bits,
+                               UT_INPUT_BITS_ADDRESS, UT_INPUT_BITS_NB,
+                               UT_INPUT_BITS_TAB);
+
+    /** INPUT REGISTERS **/
+    for (i=0; i < UT_INPUT_REGISTERS_NB; i++) {
+        mb_mapping->tab_input_registers[UT_INPUT_REGISTERS_ADDRESS+i] =
+            UT_INPUT_REGISTERS_TAB[i];;
+    }
+
+    if (use_backend == TCP) {
+        socket = modbus_tcp_listen(ctx, 1);
+        modbus_tcp_accept(ctx, &socket);
+    } else if (use_backend == TCP_PI) {
+        socket = modbus_tcp_pi_listen(ctx, 1);
+        modbus_tcp_pi_accept(ctx, &socket);
+    } else {
+        rc = modbus_connect(ctx);
+        if (rc == -1) {
+            fprintf(stderr, "Unable to connect %s\n", modbus_strerror(errno));
+            modbus_free(ctx);
+            return -1;
+        }
+    }
+
+    for (;;) {
+        rc = modbus_receive(ctx, query);
+        if (rc == -1) {
+            /* Connection closed by the client or error */
+            break;
+        }
+
+        /* Read holding registers */
+        if (query[header_length] == 0x03) {
+            if (MODBUS_GET_INT16_FROM_INT8(query, header_length + 3)
+                == UT_REGISTERS_NB_SPECIAL) {
+                printf("Set an incorrect number of values\n");
+                MODBUS_SET_INT16_TO_INT8(query, header_length + 3,
+                                         UT_REGISTERS_NB_SPECIAL - 1);
+            } else if (MODBUS_GET_INT16_FROM_INT8(query, header_length + 1)
+                == UT_REGISTERS_ADDRESS_SPECIAL) {
+                printf("Reply to this special register address by an exception\n");
+                modbus_reply_exception(ctx, query,
+                                       MODBUS_EXCEPTION_SLAVE_OR_SERVER_BUSY);
+                continue;
+            }
+        }
+
+        rc = modbus_reply(ctx, query, rc, mb_mapping);
+        if (rc == -1) {
+            break;
+        }
+    }
+
+    printf("Quit the loop: %s\n", modbus_strerror(errno));
+
+    if (use_backend == TCP) {
+        close(socket);
+    }
+    modbus_mapping_free(mb_mapping);
+    free(query);
+    modbus_free(ctx);
+
+    return 0;
+}
diff --git a/tests/unit-test-server.o b/tests/unit-test-server.o
new file mode 100644
index 0000000..7d3a2de
--- /dev/null
+++ b/tests/unit-test-server.o