1*7b1019a6SJerry Jelinek /****************************************************************************** 2*7b1019a6SJerry Jelinek * 3*7b1019a6SJerry Jelinek * Module Name: getopt 4*7b1019a6SJerry Jelinek * 5*7b1019a6SJerry Jelinek *****************************************************************************/ 6*7b1019a6SJerry Jelinek 7*7b1019a6SJerry Jelinek /* 8*7b1019a6SJerry Jelinek * Copyright (C) 2000 - 2016, Intel Corp. 9*7b1019a6SJerry Jelinek * All rights reserved. 10*7b1019a6SJerry Jelinek * 11*7b1019a6SJerry Jelinek * Redistribution and use in source and binary forms, with or without 12*7b1019a6SJerry Jelinek * modification, are permitted provided that the following conditions 13*7b1019a6SJerry Jelinek * are met: 14*7b1019a6SJerry Jelinek * 1. Redistributions of source code must retain the above copyright 15*7b1019a6SJerry Jelinek * notice, this list of conditions, and the following disclaimer, 16*7b1019a6SJerry Jelinek * without modification. 17*7b1019a6SJerry Jelinek * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18*7b1019a6SJerry Jelinek * substantially similar to the "NO WARRANTY" disclaimer below 19*7b1019a6SJerry Jelinek * ("Disclaimer") and any redistribution must be conditioned upon 20*7b1019a6SJerry Jelinek * including a substantially similar Disclaimer requirement for further 21*7b1019a6SJerry Jelinek * binary redistribution. 22*7b1019a6SJerry Jelinek * 3. Neither the names of the above-listed copyright holders nor the names 23*7b1019a6SJerry Jelinek * of any contributors may be used to endorse or promote products derived 24*7b1019a6SJerry Jelinek * from this software without specific prior written permission. 25*7b1019a6SJerry Jelinek * 26*7b1019a6SJerry Jelinek * Alternatively, this software may be distributed under the terms of the 27*7b1019a6SJerry Jelinek * GNU General Public License ("GPL") version 2 as published by the Free 28*7b1019a6SJerry Jelinek * Software Foundation. 29*7b1019a6SJerry Jelinek * 30*7b1019a6SJerry Jelinek * NO WARRANTY 31*7b1019a6SJerry Jelinek * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32*7b1019a6SJerry Jelinek * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33*7b1019a6SJerry Jelinek * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34*7b1019a6SJerry Jelinek * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35*7b1019a6SJerry Jelinek * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36*7b1019a6SJerry Jelinek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37*7b1019a6SJerry Jelinek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38*7b1019a6SJerry Jelinek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39*7b1019a6SJerry Jelinek * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40*7b1019a6SJerry Jelinek * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41*7b1019a6SJerry Jelinek * POSSIBILITY OF SUCH DAMAGES. 42*7b1019a6SJerry Jelinek */ 43*7b1019a6SJerry Jelinek 44*7b1019a6SJerry Jelinek /* 45*7b1019a6SJerry Jelinek * ACPICA getopt() implementation 46*7b1019a6SJerry Jelinek * 47*7b1019a6SJerry Jelinek * Option strings: 48*7b1019a6SJerry Jelinek * "f" - Option has no arguments 49*7b1019a6SJerry Jelinek * "f:" - Option requires an argument 50*7b1019a6SJerry Jelinek * "f+" - Option has an optional argument 51*7b1019a6SJerry Jelinek * "f^" - Option has optional single-char sub-options 52*7b1019a6SJerry Jelinek * "f|" - Option has required single-char sub-options 53*7b1019a6SJerry Jelinek */ 54*7b1019a6SJerry Jelinek 55*7b1019a6SJerry Jelinek #include "acpi.h" 56*7b1019a6SJerry Jelinek #include "accommon.h" 57*7b1019a6SJerry Jelinek #include "acapps.h" 58*7b1019a6SJerry Jelinek 59*7b1019a6SJerry Jelinek #define ACPI_OPTION_ERROR(msg, badchar) \ 60*7b1019a6SJerry Jelinek if (AcpiGbl_Opterr) {AcpiLogError ("%s%c\n", msg, badchar);} 61*7b1019a6SJerry Jelinek 62*7b1019a6SJerry Jelinek 63*7b1019a6SJerry Jelinek int AcpiGbl_Opterr = 1; 64*7b1019a6SJerry Jelinek int AcpiGbl_Optind = 1; 65*7b1019a6SJerry Jelinek int AcpiGbl_SubOptChar = 0; 66*7b1019a6SJerry Jelinek char *AcpiGbl_Optarg; 67*7b1019a6SJerry Jelinek 68*7b1019a6SJerry Jelinek static int CurrentCharPtr = 1; 69*7b1019a6SJerry Jelinek 70*7b1019a6SJerry Jelinek 71*7b1019a6SJerry Jelinek /******************************************************************************* 72*7b1019a6SJerry Jelinek * 73*7b1019a6SJerry Jelinek * FUNCTION: AcpiGetoptArgument 74*7b1019a6SJerry Jelinek * 75*7b1019a6SJerry Jelinek * PARAMETERS: argc, argv - from main 76*7b1019a6SJerry Jelinek * 77*7b1019a6SJerry Jelinek * RETURN: 0 if an argument was found, -1 otherwise. Sets AcpiGbl_Optarg 78*7b1019a6SJerry Jelinek * to point to the next argument. 79*7b1019a6SJerry Jelinek * 80*7b1019a6SJerry Jelinek * DESCRIPTION: Get the next argument. Used to obtain arguments for the 81*7b1019a6SJerry Jelinek * two-character options after the original call to AcpiGetopt. 82*7b1019a6SJerry Jelinek * Note: Either the argument starts at the next character after 83*7b1019a6SJerry Jelinek * the option, or it is pointed to by the next argv entry. 84*7b1019a6SJerry Jelinek * (After call to AcpiGetopt, we need to backup to the previous 85*7b1019a6SJerry Jelinek * argv entry). 86*7b1019a6SJerry Jelinek * 87*7b1019a6SJerry Jelinek ******************************************************************************/ 88*7b1019a6SJerry Jelinek 89*7b1019a6SJerry Jelinek int 90*7b1019a6SJerry Jelinek AcpiGetoptArgument ( 91*7b1019a6SJerry Jelinek int argc, 92*7b1019a6SJerry Jelinek char **argv) 93*7b1019a6SJerry Jelinek { 94*7b1019a6SJerry Jelinek 95*7b1019a6SJerry Jelinek AcpiGbl_Optind--; 96*7b1019a6SJerry Jelinek CurrentCharPtr++; 97*7b1019a6SJerry Jelinek 98*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 99*7b1019a6SJerry Jelinek { 100*7b1019a6SJerry Jelinek AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)]; 101*7b1019a6SJerry Jelinek } 102*7b1019a6SJerry Jelinek else if (++AcpiGbl_Optind >= argc) 103*7b1019a6SJerry Jelinek { 104*7b1019a6SJerry Jelinek ACPI_OPTION_ERROR ("Option requires an argument: -", 'v'); 105*7b1019a6SJerry Jelinek 106*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 107*7b1019a6SJerry Jelinek return (-1); 108*7b1019a6SJerry Jelinek } 109*7b1019a6SJerry Jelinek else 110*7b1019a6SJerry Jelinek { 111*7b1019a6SJerry Jelinek AcpiGbl_Optarg = argv[AcpiGbl_Optind++]; 112*7b1019a6SJerry Jelinek } 113*7b1019a6SJerry Jelinek 114*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 115*7b1019a6SJerry Jelinek return (0); 116*7b1019a6SJerry Jelinek } 117*7b1019a6SJerry Jelinek 118*7b1019a6SJerry Jelinek 119*7b1019a6SJerry Jelinek /******************************************************************************* 120*7b1019a6SJerry Jelinek * 121*7b1019a6SJerry Jelinek * FUNCTION: AcpiGetopt 122*7b1019a6SJerry Jelinek * 123*7b1019a6SJerry Jelinek * PARAMETERS: argc, argv - from main 124*7b1019a6SJerry Jelinek * opts - options info list 125*7b1019a6SJerry Jelinek * 126*7b1019a6SJerry Jelinek * RETURN: Option character or ACPI_OPT_END 127*7b1019a6SJerry Jelinek * 128*7b1019a6SJerry Jelinek * DESCRIPTION: Get the next option 129*7b1019a6SJerry Jelinek * 130*7b1019a6SJerry Jelinek ******************************************************************************/ 131*7b1019a6SJerry Jelinek 132*7b1019a6SJerry Jelinek int 133*7b1019a6SJerry Jelinek AcpiGetopt( 134*7b1019a6SJerry Jelinek int argc, 135*7b1019a6SJerry Jelinek char **argv, 136*7b1019a6SJerry Jelinek char *opts) 137*7b1019a6SJerry Jelinek { 138*7b1019a6SJerry Jelinek int CurrentChar; 139*7b1019a6SJerry Jelinek char *OptsPtr; 140*7b1019a6SJerry Jelinek 141*7b1019a6SJerry Jelinek 142*7b1019a6SJerry Jelinek if (CurrentCharPtr == 1) 143*7b1019a6SJerry Jelinek { 144*7b1019a6SJerry Jelinek if (AcpiGbl_Optind >= argc || 145*7b1019a6SJerry Jelinek argv[AcpiGbl_Optind][0] != '-' || 146*7b1019a6SJerry Jelinek argv[AcpiGbl_Optind][1] == '\0') 147*7b1019a6SJerry Jelinek { 148*7b1019a6SJerry Jelinek return (ACPI_OPT_END); 149*7b1019a6SJerry Jelinek } 150*7b1019a6SJerry Jelinek else if (strcmp (argv[AcpiGbl_Optind], "--") == 0) 151*7b1019a6SJerry Jelinek { 152*7b1019a6SJerry Jelinek AcpiGbl_Optind++; 153*7b1019a6SJerry Jelinek return (ACPI_OPT_END); 154*7b1019a6SJerry Jelinek } 155*7b1019a6SJerry Jelinek } 156*7b1019a6SJerry Jelinek 157*7b1019a6SJerry Jelinek /* Get the option */ 158*7b1019a6SJerry Jelinek 159*7b1019a6SJerry Jelinek CurrentChar = argv[AcpiGbl_Optind][CurrentCharPtr]; 160*7b1019a6SJerry Jelinek 161*7b1019a6SJerry Jelinek /* Make sure that the option is legal */ 162*7b1019a6SJerry Jelinek 163*7b1019a6SJerry Jelinek if (CurrentChar == ':' || 164*7b1019a6SJerry Jelinek (OptsPtr = strchr (opts, CurrentChar)) == NULL) 165*7b1019a6SJerry Jelinek { 166*7b1019a6SJerry Jelinek ACPI_OPTION_ERROR ("Illegal option: -", CurrentChar); 167*7b1019a6SJerry Jelinek 168*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0') 169*7b1019a6SJerry Jelinek { 170*7b1019a6SJerry Jelinek AcpiGbl_Optind++; 171*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 172*7b1019a6SJerry Jelinek } 173*7b1019a6SJerry Jelinek 174*7b1019a6SJerry Jelinek return ('?'); 175*7b1019a6SJerry Jelinek } 176*7b1019a6SJerry Jelinek 177*7b1019a6SJerry Jelinek /* Option requires an argument? */ 178*7b1019a6SJerry Jelinek 179*7b1019a6SJerry Jelinek if (*++OptsPtr == ':') 180*7b1019a6SJerry Jelinek { 181*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 182*7b1019a6SJerry Jelinek { 183*7b1019a6SJerry Jelinek AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)]; 184*7b1019a6SJerry Jelinek } 185*7b1019a6SJerry Jelinek else if (++AcpiGbl_Optind >= argc) 186*7b1019a6SJerry Jelinek { 187*7b1019a6SJerry Jelinek ACPI_OPTION_ERROR ( 188*7b1019a6SJerry Jelinek "Option requires an argument: -", CurrentChar); 189*7b1019a6SJerry Jelinek 190*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 191*7b1019a6SJerry Jelinek return ('?'); 192*7b1019a6SJerry Jelinek } 193*7b1019a6SJerry Jelinek else 194*7b1019a6SJerry Jelinek { 195*7b1019a6SJerry Jelinek AcpiGbl_Optarg = argv[AcpiGbl_Optind++]; 196*7b1019a6SJerry Jelinek } 197*7b1019a6SJerry Jelinek 198*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 199*7b1019a6SJerry Jelinek } 200*7b1019a6SJerry Jelinek 201*7b1019a6SJerry Jelinek /* Option has an optional argument? */ 202*7b1019a6SJerry Jelinek 203*7b1019a6SJerry Jelinek else if (*OptsPtr == '+') 204*7b1019a6SJerry Jelinek { 205*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 206*7b1019a6SJerry Jelinek { 207*7b1019a6SJerry Jelinek AcpiGbl_Optarg = &argv[AcpiGbl_Optind++][(int) (CurrentCharPtr+1)]; 208*7b1019a6SJerry Jelinek } 209*7b1019a6SJerry Jelinek else if (++AcpiGbl_Optind >= argc) 210*7b1019a6SJerry Jelinek { 211*7b1019a6SJerry Jelinek AcpiGbl_Optarg = NULL; 212*7b1019a6SJerry Jelinek } 213*7b1019a6SJerry Jelinek else 214*7b1019a6SJerry Jelinek { 215*7b1019a6SJerry Jelinek AcpiGbl_Optarg = argv[AcpiGbl_Optind++]; 216*7b1019a6SJerry Jelinek } 217*7b1019a6SJerry Jelinek 218*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 219*7b1019a6SJerry Jelinek } 220*7b1019a6SJerry Jelinek 221*7b1019a6SJerry Jelinek /* Option has optional single-char arguments? */ 222*7b1019a6SJerry Jelinek 223*7b1019a6SJerry Jelinek else if (*OptsPtr == '^') 224*7b1019a6SJerry Jelinek { 225*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 226*7b1019a6SJerry Jelinek { 227*7b1019a6SJerry Jelinek AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)]; 228*7b1019a6SJerry Jelinek } 229*7b1019a6SJerry Jelinek else 230*7b1019a6SJerry Jelinek { 231*7b1019a6SJerry Jelinek AcpiGbl_Optarg = "^"; 232*7b1019a6SJerry Jelinek } 233*7b1019a6SJerry Jelinek 234*7b1019a6SJerry Jelinek AcpiGbl_SubOptChar = AcpiGbl_Optarg[0]; 235*7b1019a6SJerry Jelinek AcpiGbl_Optind++; 236*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 237*7b1019a6SJerry Jelinek } 238*7b1019a6SJerry Jelinek 239*7b1019a6SJerry Jelinek /* Option has a required single-char argument? */ 240*7b1019a6SJerry Jelinek 241*7b1019a6SJerry Jelinek else if (*OptsPtr == '|') 242*7b1019a6SJerry Jelinek { 243*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)] != '\0') 244*7b1019a6SJerry Jelinek { 245*7b1019a6SJerry Jelinek AcpiGbl_Optarg = &argv[AcpiGbl_Optind][(int) (CurrentCharPtr+1)]; 246*7b1019a6SJerry Jelinek } 247*7b1019a6SJerry Jelinek else 248*7b1019a6SJerry Jelinek { 249*7b1019a6SJerry Jelinek ACPI_OPTION_ERROR ( 250*7b1019a6SJerry Jelinek "Option requires a single-character suboption: -", 251*7b1019a6SJerry Jelinek CurrentChar); 252*7b1019a6SJerry Jelinek 253*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 254*7b1019a6SJerry Jelinek return ('?'); 255*7b1019a6SJerry Jelinek } 256*7b1019a6SJerry Jelinek 257*7b1019a6SJerry Jelinek AcpiGbl_SubOptChar = AcpiGbl_Optarg[0]; 258*7b1019a6SJerry Jelinek AcpiGbl_Optind++; 259*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 260*7b1019a6SJerry Jelinek } 261*7b1019a6SJerry Jelinek 262*7b1019a6SJerry Jelinek /* Option with no arguments */ 263*7b1019a6SJerry Jelinek 264*7b1019a6SJerry Jelinek else 265*7b1019a6SJerry Jelinek { 266*7b1019a6SJerry Jelinek if (argv[AcpiGbl_Optind][++CurrentCharPtr] == '\0') 267*7b1019a6SJerry Jelinek { 268*7b1019a6SJerry Jelinek CurrentCharPtr = 1; 269*7b1019a6SJerry Jelinek AcpiGbl_Optind++; 270*7b1019a6SJerry Jelinek } 271*7b1019a6SJerry Jelinek 272*7b1019a6SJerry Jelinek AcpiGbl_Optarg = NULL; 273*7b1019a6SJerry Jelinek } 274*7b1019a6SJerry Jelinek 275*7b1019a6SJerry Jelinek return (CurrentChar); 276*7b1019a6SJerry Jelinek } 277