1 /****************************************************************************** 2 * 3 * Module Name: utascii - Utility ascii functions 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2016, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 *****************************************************************************/ 115 116 #include "acpi.h" 117 #include "accommon.h" 118 119 120 /******************************************************************************* 121 * 122 * FUNCTION: AcpiUtValidNameseg 123 * 124 * PARAMETERS: Name - The name or table signature to be examined. 125 * Four characters, does not have to be a 126 * NULL terminated string. 127 * 128 * RETURN: TRUE if signature is has 4 valid ACPI characters 129 * 130 * DESCRIPTION: Validate an ACPI table signature. 131 * 132 ******************************************************************************/ 133 134 BOOLEAN 135 AcpiUtValidNameseg ( 136 char *Name) 137 { 138 UINT32 i; 139 140 141 /* Validate each character in the signature */ 142 143 for (i = 0; i < ACPI_NAME_SIZE; i++) 144 { 145 if (!AcpiUtValidNameChar (Name[i], i)) 146 { 147 return (FALSE); 148 } 149 } 150 151 return (TRUE); 152 } 153 154 155 /******************************************************************************* 156 * 157 * FUNCTION: AcpiUtValidNameChar 158 * 159 * PARAMETERS: Char - The character to be examined 160 * Position - Byte position (0-3) 161 * 162 * RETURN: TRUE if the character is valid, FALSE otherwise 163 * 164 * DESCRIPTION: Check for a valid ACPI character. Must be one of: 165 * 1) Upper case alpha 166 * 2) numeric 167 * 3) underscore 168 * 169 * We allow a '!' as the last character because of the ASF! table 170 * 171 ******************************************************************************/ 172 173 BOOLEAN 174 AcpiUtValidNameChar ( 175 char Character, 176 UINT32 Position) 177 { 178 179 if (!((Character >= 'A' && Character <= 'Z') || 180 (Character >= '0' && Character <= '9') || 181 (Character == '_'))) 182 { 183 /* Allow a '!' in the last position */ 184 185 if (Character == '!' && Position == 3) 186 { 187 return (TRUE); 188 } 189 190 return (FALSE); 191 } 192 193 return (TRUE); 194 } 195 196 197 /******************************************************************************* 198 * 199 * FUNCTION: AcpiUtCheckAndRepairAscii 200 * 201 * PARAMETERS: Name - Ascii string 202 * Count - Number of characters to check 203 * 204 * RETURN: None 205 * 206 * DESCRIPTION: Ensure that the requested number of characters are printable 207 * Ascii characters. Sets non-printable and null chars to <space>. 208 * 209 ******************************************************************************/ 210 211 void 212 AcpiUtCheckAndRepairAscii ( 213 UINT8 *Name, 214 char *RepairedName, 215 UINT32 Count) 216 { 217 UINT32 i; 218 219 220 for (i = 0; i < Count; i++) 221 { 222 RepairedName[i] = (char) Name[i]; 223 224 if (!Name[i]) 225 { 226 return; 227 } 228 if (!isprint (Name[i])) 229 { 230 RepairedName[i] = ' '; 231 } 232 } 233 } 234