1/* 2 * layout_dump.c - 3 * 4 * Written by Eryk Vershen 5 */ 6 7/* 8 * Copyright 1996,1997 by Apple Computer, Inc. 9 * All Rights Reserved 10 * 11 * Permission to use, copy, modify, and distribute this software and 12 * its documentation for any purpose and without fee is hereby granted, 13 * provided that the above copyright notice appears in all copies and 14 * that both the copyright notice and this permission notice appear in 15 * supporting documentation. 16 * 17 * APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 18 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 19 * FOR A PARTICULAR PURPOSE. 20 * 21 * IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 22 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 23 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 24 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 25 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 26 */ 27 28// for printf() 29#include <stdio.h> 30// for strlen() 31#include <string.h> 32#include <inttypes.h> 33#include "layout_dump.h" 34 35 36/* 37 * Defines 38 */ 39 40 41/* 42 * Types 43 */ 44 45 46/* 47 * Global Constants 48 */ 49uint8_t bitmasks[] = { 50 0x01, 0x03, 0x07, 0x0F, 51 0x1F, 0x3F, 0x7F, 0xFF 52}; 53 54 55/* 56 * Global Variables 57 */ 58 59 60/* 61 * Forward declarations 62 */ 63 64 65/* 66 * Routines 67 */ 68void 69dump_using_layout(void *buffer, layout *desc) 70{ 71 layout *entry; 72 int byte_length; 73 long value; 74 int max_name; 75 int i; 76 77 max_name = 0; 78 for (entry = desc; entry->format != kEnd; entry++) { 79 value = strlen(entry->name); 80 if (value > max_name) { 81 max_name = value; 82 } 83 } 84 85 86 for (entry = desc; entry->format != kEnd; entry++) { 87 88 if (entry->format != kBit) { 89 printf("%*s: ", max_name, entry->name); 90 91 byte_length = entry->bit_length / 8; 92 93 if (entry->bit_offset != 0 || (entry->bit_length % 8) != 0) { 94 printf("entry %d, can't handle bitfields yet.\n", (int)(entry - desc)); 95 continue; 96 } 97 98 value = 0; 99 for (i = entry->byte_offset; byte_length > 0;i++) { 100 value = value << 8; 101 value |= ((uint8_t *)buffer)[i]; 102 byte_length--; 103 } 104 } else { 105 if (entry->bit_offset < 0 || entry->bit_offset > 8) { 106 printf("entry %d, bad bit offset (%d).\n", (int)(entry - desc), entry->bit_offset); 107 continue; 108 } else if (entry->bit_length <= 0 109 || entry->bit_length > (entry->bit_offset + 1)) { 110 printf("entry %d, bad bit length (%d,%d).\n", (int)(entry - desc), 111 entry->bit_offset, entry->bit_length); 112 continue; 113 } 114 value = (((uint8_t *)buffer)[entry->byte_offset] 115 & bitmasks[entry->bit_offset]) 116 >> ((entry->bit_offset + 1) - entry->bit_length); 117 } 118 119 switch (entry->format) { 120 case kHex: 121 printf("0x%x\n", (uint32_t) value); 122 break; 123 case kDec: 124 byte_length = entry->bit_length / 8; 125 switch (byte_length) { 126 case 4: printf("%"PRId32"\n", (int32_t)value); break; 127 case 2: printf("%"PRId16"\n", (int16_t)value); break; 128 case 1: printf("%"PRId8"\n", (int8_t)value); break; 129 } 130 break; 131 case kUns: 132 byte_length = entry->bit_length / 8; 133 switch (byte_length) { 134 case 4: printf("%"PRIu32"\n", (uint32_t)value); break; 135 case 2: printf("%"PRIu16"\n", (uint16_t)value); break; 136 case 1: printf("%"PRIu8"\n", (uint8_t)value); break; 137 } 138 break; 139 case kBit: 140 if (value) { 141 printf("%*s %s\n", max_name, "", entry->name); 142 } 143 break; 144 default: 145 printf("entry %d, unknown format (%d).\n", (int)(entry - desc), entry->format); 146 break; 147 } 148 } 149} 150 151 152void 153DumpRawBuffer(uint8_t *bufferPtr, int length ) 154{ 155 register int i; 156 int lineStart; 157 int lineLength; 158 short c; 159 160#define kLineSize 16 161 for (lineStart = 0; lineStart < length; lineStart += lineLength) { 162 lineLength = kLineSize; 163 if (lineStart + lineLength > length) 164 lineLength = length - lineStart; 165 printf("%03x %3d:", lineStart, lineStart); 166 for (i = 0; i < lineLength; i++) 167 printf(" %02x", bufferPtr[lineStart + i] & 0xFF); 168 for (; i < kLineSize; i++) 169 printf(" "); 170 printf(" "); 171 for (i = 0; i < lineLength; i++) { 172 c = bufferPtr[lineStart + i] & 0xFF; 173 if (c > ' ' && c < '~') 174 printf("%c", c); 175 else { 176 printf("."); 177 } 178 } 179 printf("\n"); 180 } 181} 182