add todbcinst to help user install/uninstall taos odbc driver

cmake/install.inc

@@ -9,7 +9,7 @@ ELSEIF (TD_WINDOWS)
   ELSE ()
     SET(CMAKE_INSTALL_PREFIX C:/TDengine)
   ENDIF ()
-  
+
   INSTALL(DIRECTORY ${TD_COMMUNITY_DIR}/src/connector/go     DESTINATION connector)
   INSTALL(DIRECTORY ${TD_COMMUNITY_DIR}/src/connector/nodejs DESTINATION connector)
   INSTALL(DIRECTORY ${TD_COMMUNITY_DIR}/src/connector/python DESTINATION connector)
@@ -19,13 +19,17 @@ ELSEIF (TD_WINDOWS)
   INSTALL(FILES ${TD_COMMUNITY_DIR}/src/inc/taoserror.h DESTINATION include)
   INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.lib DESTINATION driver)
   INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.exp DESTINATION driver)
-  INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.dll DESTINATION driver) 
-   
+  INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.dll DESTINATION driver)
+  INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/todbc.lib DESTINATION driver)
+  INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/todbc.exp DESTINATION driver)
+  INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/todbc.dll DESTINATION driver)
+
   IF (TD_POWER)
     INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/power.exe DESTINATION .)
-  ELSE ()   
-    INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/taos.exe DESTINATION .)   
+  ELSE ()
+    INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/taos.exe DESTINATION .)
     INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/taosdemo.exe DESTINATION .)
+    INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/todbcinst.exe DESTINATION .)
   ENDIF ()
 
   #INSTALL(TARGETS taos RUNTIME DESTINATION driver)

src/connector/odbc/CMakeLists.txt

@@ -20,6 +20,7 @@ IF (TD_LINUX_64)
         SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wconversion")
         SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Wconversion")
         ADD_SUBDIRECTORY(src)
+        ADD_SUBDIRECTORY(tools)
         ADD_SUBDIRECTORY(tests)
       endif()
     endif()
@@ -42,6 +43,7 @@ IF (TD_WINDOWS_64)
     message(FATAL_ERROR "you need to install flex first")
   else ()
     ADD_SUBDIRECTORY(src)
+    ADD_SUBDIRECTORY(tools)
     ADD_SUBDIRECTORY(tests)
   endif()
 ENDIF ()

src/connector/odbc/tests/CMakeLists.txt

@@ -9,5 +9,5 @@ ENDIF ()
 IF (TD_WINDOWS_64)
   AUX_SOURCE_DIRECTORY(. SRC)
   ADD_EXECUTABLE(tcodbc main.c)
-  TARGET_LINK_LIBRARIES(tcodbc odbc32 os)
+  TARGET_LINK_LIBRARIES(tcodbc odbc32 odbccp32 user32 legacy_stdio_definitions os)
 ENDIF ()

src/connector/odbc/tests/main.c

@@ -7,6 +7,7 @@
 #endif
 #include <sql.h>
 #include <sqlext.h>
+#include <odbcinst.h>
 
 #include <stdio.h>
 #include <string.h>
@@ -496,6 +497,13 @@ int main(int argc, char *argv[]) {
     return 0;
   }
 
+  if (argc==2 && strcmp(argv[1], "uninstall")==0) {
+    DWORD usage = 0;
+    BOOL ok = SQLRemoveDriver("TAOS ODBC", TRUE, &usage);
+    D("ok/usage: %d/%d", ok, usage);
+    return ok ? 0 : 1;
+  }
+
   const char *dsn = (argc>1) ? argv[1] : NULL;
   const char *uid = (argc>2) ? argv[2] : NULL;
   const char *pwd = (argc>3) ? argv[3] : NULL;

src/connector/odbc/tools/CMakeLists.txt

+PROJECT(TDengine)
+
+IF (TD_LINUX)
+  ADD_EXECUTABLE(todbcinst main.c)
+  TARGET_LINK_LIBRARIES(todbcinst odbc)
+ENDIF ()
+
+IF (TD_WINDOWS_64)
+  ADD_EXECUTABLE(todbcinst main.c)
+  TARGET_LINK_LIBRARIES(todbcinst odbc32 odbccp32 user32 legacy_stdio_definitions os)
+ENDIF ()

src/connector/odbc/tools/main.c

+#include "../src/todbc_log.h"
+
+#ifdef _MSC_VER
+#include <winsock2.h>
+#include <windows.h>
+#include "os.h"
+#endif
+#include <odbcinst.h>
+
+#include <stdio.h>
+#include <string.h>
+
+static void usage(const char *arg0);
+static int do_install(int i, int argc, char *argv[]);
+static int do_uninstall(int i, int argc, char *argv[]);
+
+int main(int argc, char *argv[]) {
+  for (int i = 1; i < argc; i++) {
+    const char *arg = argv[i];
+    if (strcmp(arg, "-h") == 0) {
+      usage(argv[0]);
+      return 0;
+    } else if (strcmp(arg, "-i") == 0 ) {
+      i = do_install(i + 1, argc, argv);
+      if (i > 0) continue;
+      return i == 0 ? 0 : 1;
+    } else if (strcmp(arg, "-u") == 0 ) {
+      i = do_uninstall(i + 1, argc, argv);
+      if (i > 0) continue;
+      return i == 0 ? 0 : 1;
+    } else {
+      fprintf(stderr, "unknown argument: [%s]\n", arg);
+      return 1;
+    }
+  }
+}
+
+static void usage(const char *arg0) {
+  fprintf(stderr, "%s -h | -i -n [TaosDriverName] -p [TaosDriverPath] | -u [-f] [TaosDriverName]\n", arg0);
+  return;
+}
+
+static int do_install(int i, int argc, char *argv[]) {
+  int forceful = 0;
+  const char* driverName = NULL;
+  const char* driverFile = "todbc.dll";
+  const char* driverPath = NULL;
+  for (; i < argc; ++i) {
+    const char *arg = argv[i];
+    if (strcmp(arg, "-n") == 0) {
+      i += 1;
+      if (i >= argc) {
+        fprintf(stderr, "expecting TaosDriverName, but got nothing\n");
+        return -1;
+      }
+      arg = argv[i];
+      if (strstr(arg, "TAOS") != arg) {
+        fprintf(stderr, "TaosDriverName shall begin with 'TAOS': [%s]\n", arg);
+        return -1;
+      }
+      driverName = arg;
+    } else if (strcmp(arg, "-p") == 0) {
+      i += 1;
+      if (i >= argc) {
+        fprintf(stderr, "expecting TaosDriverPath, but got nothing\n");
+        return -1;
+      }
+      driverPath = argv[i];
+    } else {
+      fprintf(stderr, "unknown argument: [%s]\n", arg);
+      return -1;
+    }
+  }
+  if (!driverName) {
+    fprintf(stderr, "TaosDriverName not specified\n");
+    return -1;
+  }
+  if (!driverPath) {
+    fprintf(stderr, "TaosDriverPath not specified\n");
+    return -1;
+  }
+  char buf[8192];
+  snprintf(buf, sizeof(buf), "%s%cDriver=%s%cFileUage=0%cConnectFunctions=YYN%c",
+    driverName, 0, driverFile, 0, 0, 0);
+  BOOL ok = TRUE;
+  DWORD usageCount = 1;
+  char installed[PATH_MAX + 1];
+  WORD len = 0;
+  ok = SQLInstallDriverEx(buf, driverPath, installed, sizeof(installed), &len, ODBC_INSTALL_INQUIRY, &usageCount);
+  if (!ok) {
+    fprintf(stderr, "failed to query TaosDriverName: [%s]\n", driverName);
+    return -1;
+  }
+  if (stricmp(driverPath, installed)) {
+    fprintf(stderr, "previously installed TaosDriver [%s] has different target path [%s]\n"
+      "it shall be uninstalled before you can install it to different path [%s]\n",
+      driverName, installed, driverPath);
+    return -1;
+  }
+  ok = SQLInstallDriverEx(buf, driverPath, installed, sizeof(installed), &len, ODBC_INSTALL_COMPLETE, &usageCount);
+  if (!ok) {
+    fprintf(stderr, "failed to install TaosDriverName: [%s][%s]\n", driverName, driverPath);
+    return -1;
+  }
+
+  return argc;
+}
+
+static int do_uninstall(int i, int argc, char *argv[]) {
+  int forceful = 0;
+  const char* driverName = NULL;
+  for (; i < argc; ++i) {
+    const char *arg = argv[i];
+    if (strcmp(arg, "-f") == 0) {
+      forceful = 1;
+    } else if (strcmp(arg, "-n") == 0) {
+      i += 1;
+      if (i >= argc) {
+        fprintf(stderr, "expecting TaosDriverName, but got nothing\n");
+        return -1;
+      }
+      arg = argv[i];
+      if (strstr(arg, "TAOS") != arg) {
+        fprintf(stderr, "TaosDriverName shall begin with 'TAOS': [%s]\n", arg);
+        return -1;
+      }
+      driverName = arg;
+    } else {
+      fprintf(stderr, "unknown argument: [%s]\n", arg);
+      return -1;
+    }
+  }
+  if (!driverName) {
+    fprintf(stderr, "TaosDriverName not specified\n");
+    return -1;
+  }
+  BOOL ok = TRUE;
+  DWORD usageCount = 1;
+  do {
+    ok = SQLRemoveDriver(driverName, FALSE, &usageCount);
+    if (!ok) {
+      fprintf(stderr, "failed to remove driver [%s]\n", driverName);
+      return -1;
+    }
+    if (!forceful) return argc;
+  } while (usageCount > 0);
+  return argc;
+}
+