1/* 2 * DriverConnect.c 3 * 4 * $Id: DriverConnect.c,v 1.6 2006/01/20 15:58:35 source Exp $ 5 * 6 * SQLDriverConnect trace functions 7 * 8 * The iODBC driver manager. 9 * 10 * Copyright (C) 1996-2006 by OpenLink Software <iodbc@openlinksw.com> 11 * All Rights Reserved. 12 * 13 * This software is released under the terms of either of the following 14 * licenses: 15 * 16 * - GNU Library General Public License (see LICENSE.LGPL) 17 * - The BSD License (see LICENSE.BSD). 18 * 19 * Note that the only valid version of the LGPL license as far as this 20 * project is concerned is the original GNU Library General Public License 21 * Version 2, dated June 1991. 22 * 23 * While not mandated by the BSD license, any patches you make to the 24 * iODBC source code may be contributed back into the iODBC project 25 * at your discretion. Contributions will benefit the Open Source and 26 * Data Access community as a whole. Submissions may be made at: 27 * 28 * http://www.iodbc.org 29 * 30 * 31 * GNU Library Generic Public License Version 2 32 * ============================================ 33 * This library is free software; you can redistribute it and/or 34 * modify it under the terms of the GNU Library General Public 35 * License as published by the Free Software Foundation; only 36 * Version 2 of the License dated June 1991. 37 * 38 * This library is distributed in the hope that it will be useful, 39 * but WITHOUT ANY WARRANTY; without even the implied warranty of 40 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 41 * Library General Public License for more details. 42 * 43 * You should have received a copy of the GNU Library General Public 44 * License along with this library; if not, write to the Free 45 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 46 * 47 * 48 * The BSD License 49 * =============== 50 * Redistribution and use in source and binary forms, with or without 51 * modification, are permitted provided that the following conditions 52 * are met: 53 * 54 * 1. Redistributions of source code must retain the above copyright 55 * notice, this list of conditions and the following disclaimer. 56 * 2. Redistributions in binary form must reproduce the above copyright 57 * notice, this list of conditions and the following disclaimer in 58 * the documentation and/or other materials provided with the 59 * distribution. 60 * 3. Neither the name of OpenLink Software Inc. nor the names of its 61 * contributors may be used to endorse or promote products derived 62 * from this software without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 65 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 66 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 67 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL OPENLINK OR 68 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 69 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 70 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 71 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 72 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 73 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 74 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 75 */ 76 77#include "trace.h" 78 79 80/* 81 * Never print plaintext passwords 82 * 83 * NOTE: This function modifies the original string 84 * 85 */ 86static void 87_trace_connstr_hidepwd (SQLCHAR *str) 88{ 89 SQLCHAR *ptr; 90 int state = 0; 91 92 for (ptr = str; *ptr;) 93 { 94 switch (state) 95 { 96 case -1: 97 if (strchr ("\'\"}", *ptr)) 98 state = 0; 99 break; 100 101 case 0: 102 if (toupper(*ptr) == 'P') 103 state = 1; 104 else if (strchr ("\'\"{", *ptr)) 105 state = -1; /* in string */ 106 break; 107 108 case 1: 109 if (toupper(*ptr) == 'W') 110 state = 2; 111 else 112 state = 0; 113 break; 114 115 case 2: 116 if (toupper(*ptr) == 'D') 117 state = 3; 118 else 119 state = 0; 120 break; 121 122 case 3: 123 if (*ptr == '=') 124 state = 4; /* goto password mode */ 125 else 126 state = 0; 127 break; 128 129 case 4: 130 if (*ptr == ';') 131 { 132 state = 0; /* go back to normal mode */ 133 } 134 else 135 *ptr = '*'; 136 break; 137 } 138 ptr++; 139 } 140} 141 142 143static void 144_trace_connstr ( 145 SQLCHAR * str, 146 SQLSMALLINT len, 147 SQLSMALLINT * lenptr, 148 int output) 149{ 150 SQLCHAR *dup; 151 ssize_t length; 152 153 if (!str) 154 { 155 trace_emit ("\t\t%-15.15s * 0x0\n", "SQLCHAR"); 156 return; 157 } 158 159 trace_emit ("\t\t%-15.15s * %p\n", "SQLCHAR", str); 160 161 if (!output) 162 return; 163 164 /* 165 * Calculate string length 166 */ 167 if (lenptr ) 168 length = *lenptr; 169 else 170 length = len; 171 172 if (length == SQL_NTS) 173 length = STRLEN (str); 174 175 176 /* 177 * Make a copy of the string 178 */ 179 if ((dup = (SQLCHAR *) malloc (length + 1)) == NULL) 180 return; 181 memcpy (dup, str, length); 182 dup[length] = '\0'; 183 184 /* 185 * Emit the string 186 */ 187 _trace_connstr_hidepwd (dup); 188 trace_emit_string (dup, length, 0); 189 free (dup); 190} 191 192 193static void 194_trace_connstr_w ( 195 SQLWCHAR * str, 196 SQLSMALLINT len, 197 SQLSMALLINT * lenptr, 198 int output) 199{ 200 SQLCHAR *dup; 201 long length; 202 203 if (!str) 204 { 205 trace_emit ("\t\t%-15.15s * 0x0\n", "SQLWCHAR"); 206 return; 207 } 208 209 trace_emit ("\t\t%-15.15s * %p\n", "SQLWCHAR", str); 210 211 if (!output) 212 return; 213 214 /* 215 * Calculate string length 216 */ 217 if (lenptr) 218 length = *lenptr; 219 else 220 length = len; 221 222 /* 223 * Emit the string 224 */ 225 dup = dm_SQL_W2A (str, length); 226 _trace_connstr_hidepwd (dup); 227 trace_emit_string (dup, SQL_NTS, 1); 228 free (dup); 229} 230 231 232 233static void 234_trace_drvcn_completion(SQLUSMALLINT fDriverCompletion) 235{ 236 char *ptr = "invalid completion value"; 237 238 switch (fDriverCompletion) 239 { 240 _S (SQL_DRIVER_PROMPT); 241 _S (SQL_DRIVER_COMPLETE); 242 _S (SQL_DRIVER_COMPLETE_REQUIRED); 243 _S (SQL_DRIVER_NOPROMPT); 244 } 245 246 trace_emit ("\t\t%-15.15s %d (%s)\n", 247 "SQLUSMALLINT", (int) fDriverCompletion, ptr); 248} 249 250 251void 252trace_SQLDriverConnect (int trace_leave, int retcode, 253 SQLHDBC hdbc, 254 SQLHWND hwnd, 255 SQLCHAR * szConnStrIn, 256 SQLSMALLINT cbConnStrIn, 257 SQLCHAR * szConnStrOut, 258 SQLSMALLINT cbConnStrOutMax, 259 SQLSMALLINT * pcbConnStrOut, 260 SQLUSMALLINT fDriverCompletion) 261{ 262 /* Trace function */ 263 _trace_print_function (en_DriverConnect, trace_leave, retcode); 264 265 /* Trace Arguments */ 266 _trace_handle (SQL_HANDLE_DBC, hdbc); 267 _trace_pointer (hwnd); 268 _trace_connstr (szConnStrIn, cbConnStrIn, NULL, TRACE_INPUT); 269 _trace_stringlen ("SQLSMALLINT", cbConnStrIn); 270 _trace_connstr (szConnStrOut, cbConnStrOutMax, pcbConnStrOut, 271 TRACE_OUTPUT_SUCCESS); 272 _trace_stringlen ("SQLSMALLINT", cbConnStrOutMax); 273 _trace_smallint_p (pcbConnStrOut, TRACE_OUTPUT_SUCCESS); 274 _trace_drvcn_completion (fDriverCompletion); 275} 276 277 278#if ODBCVER >= 0x0300 279void 280trace_SQLDriverConnectW (int trace_leave, int retcode, 281 SQLHDBC hdbc, 282 SQLHWND hwnd, 283 SQLWCHAR * szConnStrIn, 284 SQLSMALLINT cbConnStrIn, 285 SQLWCHAR * szConnStrOut, 286 SQLSMALLINT cbConnStrOutMax, 287 SQLSMALLINT * pcbConnStrOut, 288 SQLUSMALLINT fDriverCompletion) 289{ 290 /* Trace function */ 291 _trace_print_function (en_DriverConnectW, trace_leave, retcode); 292 293 /* Trace Arguments */ 294 _trace_handle (SQL_HANDLE_DBC, hdbc); 295 _trace_pointer (hwnd); 296 _trace_connstr_w (szConnStrIn, cbConnStrIn, NULL, TRACE_INPUT); 297 _trace_stringlen ("SQLSMALLINT", cbConnStrIn); 298 _trace_connstr_w (szConnStrOut, cbConnStrOutMax, pcbConnStrOut, 299 TRACE_OUTPUT_SUCCESS); 300 _trace_stringlen ("SQLSMALLINT", cbConnStrOutMax); 301 _trace_smallint_p (pcbConnStrOut, TRACE_OUTPUT_SUCCESS); 302 _trace_drvcn_completion (fDriverCompletion); 303} 304#endif 305