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1 /*
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2 * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include <ctype.h>
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26 #include <string.h>
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27 #include "ioUtils.hpp"
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28 #include "IOBuf.hpp"
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29
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30 bool
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31 scanInt(char** data, int* num) {
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32 *num = 0;
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33
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34 // Skip whitespace
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35 while ((**data != 0) && (isspace(**data))) {
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36 ++*data;
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37 }
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38
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39 if (**data == 0) {
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40 return false;
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41 }
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42
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43 while ((**data != 0) && (!isspace(**data))) {
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44 char cur = **data;
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45 if ((cur < '0') || (cur > '9')) {
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46 return false;
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47 }
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48 *num *= 10;
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49 *num += cur - '0';
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50 ++*data;
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51 }
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52
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53 return true;
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54 }
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55
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56 bool
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57 scanUnsignedLong(char** data, unsigned long* num) {
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58 *num = 0;
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59
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60 // Skip whitespace
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61 while ((**data != 0) && (isspace(**data))) {
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62 ++*data;
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63 }
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64
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65 if (**data == 0) {
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66 return false;
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67 }
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68
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69 while ((**data != 0) && (!isspace(**data))) {
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70 char cur = **data;
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71 if ((cur < '0') || (cur > '9')) {
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72 return false;
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73 }
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74 *num *= 10;
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75 *num += cur - '0';
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76 ++*data;
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77 }
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78
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79 return true;
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80 }
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81
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82 bool
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83 charToNibble(char ascii, int* value) {
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84 if (ascii >= '0' && ascii <= '9') {
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85 *value = ascii - '0';
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86 return true;
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87 } else if (ascii >= 'A' && ascii <= 'F') {
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88 *value = 10 + ascii - 'A';
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89 return true;
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90 } else if (ascii >= 'a' && ascii <= 'f') {
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91 *value = 10 + ascii - 'a';
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92 return true;
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93 }
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94
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95 return false;
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96 }
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97
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98 bool
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99 scanAddress(char** data, unsigned long* addr) {
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100 *addr = 0;
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101
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102 // Skip whitespace
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103 while ((**data != 0) && (isspace(**data))) {
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104 ++*data;
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105 }
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106
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107 if (**data == 0) {
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108 return false;
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109 }
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110
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111 if (strncmp(*data, "0x", 2) != 0) {
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112 return false;
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113 }
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114
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115 *data += 2;
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116
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117 while ((**data != 0) && (!isspace(**data))) {
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118 int val;
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119 bool res = charToNibble(**data, &val);
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120 if (!res) {
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121 return false;
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122 }
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123 *addr <<= 4;
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124 *addr |= val;
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125 ++*data;
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126 }
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127
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128 return true;
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129 }
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130
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131 bool
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132 scanAndSkipBinEscapeChar(char** data) {
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133 // Skip whitespace
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134 while ((**data != 0) && (isspace(**data))) {
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135 ++*data;
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136 }
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137
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138 if (!IOBuf::isBinEscapeChar(**data)) {
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139 return false;
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140 }
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141
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142 ++*data;
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143
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144 return true;
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145 }
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146
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147 bool
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148 scanBinUnsignedLong(char** data, unsigned long* num) {
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149 *num = 0;
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150 for (int i = 0; i < 4; i++) {
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151 unsigned char val = (unsigned char) **data;
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152 *num = (*num << 8) | val;
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153 ++*data;
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154 }
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155 return true;
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156 }
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