1 2 /****************************************************************************** 3 * 4 * Module Name: getopt 5 * 6 *****************************************************************************/ 7 8 /* 9 * Copyright (C) 2000 - 2011, Intel Corp. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions, and the following disclaimer, 17 * without modification. 18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 19 * substantially similar to the "NO WARRANTY" disclaimer below 20 * ("Disclaimer") and any redistribution must be conditioned upon 21 * including a substantially similar Disclaimer requirement for further 22 * binary redistribution. 23 * 3. Neither the names of the above-listed copyright holders nor the names 24 * of any contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * Alternatively, this software may be distributed under the terms of the 28 * GNU General Public License ("GPL") version 2 as published by the Free 29 * Software Foundation. 30 * 31 * NO WARRANTY 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 42 * POSSIBILITY OF SUCH DAMAGES. 43 */ 44 45 46 #include <stdio.h> 47 #include <string.h> 48 #include <contrib/dev/acpica/include/acpi.h> 49 #include <contrib/dev/acpica/include/accommon.h> 50 #include <contrib/dev/acpica/include/acapps.h> 51 52 #define ERR(szz,czz) if(AcpiGbl_Opterr){fprintf(stderr,"%s%s%c\n",argv[0],szz,czz);} 53 54 55 int AcpiGbl_Opterr = 1; 56 int AcpiGbl_Optind = 1; 57 char *AcpiGbl_Optarg; 58 59 60 /******************************************************************************* 61 * 62 * FUNCTION: AcpiGetopt 63 * 64 * PARAMETERS: argc, argv - from main 65 * opts - options info list 66 * 67 * RETURN: Option character or EOF 68 * 69 * DESCRIPTION: Get the next option 70 * 71 ******************************************************************************/ 72 73 int 74 AcpiGetopt( 75 int argc, 76 char **argv, 77 char *opts) 78 { 79 static int CurrentCharPtr = 1; 80 int CurrentChar; 81 char *OptsPtr; 82 83 84 if (CurrentCharPtr == 1) 85 { 86 if (AcpiGbl_Optind >= argc || 87 argv[AcpiGbl_Optind][0] != '-' || 88 argv[AcpiGbl_Optind][1] == '\0') 89 { 90 return(EOF); 91 } 92 else if (strcmp (argv[AcpiGbl_Optind], "--") == 0) 93 { 94 AcpiGbl_Optind++; 95 return(EOF); 96 } 97 } 98 99 /* Get the option */ 100 101 CurrentChar = argv[AcpiGbl_Optind][CurrentCharPtr]; 102 103 /* Make sure that the option is legal */ 104 105 if (CurrentChar == ':' || 106 (OptsPtr = strchr (opts, CurrentChar)) == NULL) 107 { 108 ERR (": illegal option -- ", CurrentChar); 109 110 if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0') 111 { 112 AcpiGbl_Optind++; 113 CurrentCharPtr = 1; 114 } 115 116 return ('?'); 117 } 118 119 /* Option requires an argument? */ 120 121 if (*++OptsPtr == ':') 122 { 123 if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 124 { 125 AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)]; 126 } 127 else if (++AcpiGbl_Optind >= argc) 128 { 129 ERR (": option requires an argument -- ", CurrentChar); 130 131 CurrentCharPtr = 1; 132 return ('?'); 133 } 134 else 135 { 136 AcpiGbl_Optarg = argv[AcpiGbl_Optind++]; 137 } 138 139 CurrentCharPtr = 1; 140 } 141 142 /* Option has optional single-char arguments? */ 143 144 else if (*OptsPtr == '^') 145 { 146 if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 147 { 148 AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)]; 149 } 150 else 151 { 152 AcpiGbl_Optarg = "^"; 153 } 154 155 AcpiGbl_Optind++; 156 CurrentCharPtr = 1; 157 } 158 159 /* Option with no arguments */ 160 161 else 162 { 163 if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0') 164 { 165 CurrentCharPtr = 1; 166 AcpiGbl_Optind++; 167 } 168 169 AcpiGbl_Optarg = NULL; 170 } 171 172 return (CurrentChar); 173 } 174