Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/util/dersubr.c @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
parents
children
rev   line source
0
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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4
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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5 #include "secder.h"
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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6 #include <limits.h>
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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7 #include "secerr.h"
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8
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9 int
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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10 DER_LengthLength(PRUint32 len)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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11 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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12 if (len > 127) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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13 if (len > 255) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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14 if (len > 65535L) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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15 if (len > 16777215L) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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16 return 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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17 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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18 return 4;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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19 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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20 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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21 return 3;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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22 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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23 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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24 return 2;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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25 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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26 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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27 return 1;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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28 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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29 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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30
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31 unsigned char *
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32 DER_StoreHeader(unsigned char *buf, unsigned int code, PRUint32 len)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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33 {
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34 unsigned char b[4];
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35
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36 b[0] = (unsigned char)(len >> 24);
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37 b[1] = (unsigned char)(len >> 16);
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38 b[2] = (unsigned char)(len >> 8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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39 b[3] = (unsigned char)len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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40 if ((code & DER_TAGNUM_MASK) == DER_SET
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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41 || (code & DER_TAGNUM_MASK) == DER_SEQUENCE)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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42 code |= DER_CONSTRUCTED;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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43 *buf++ = code;
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44 if (len > 127) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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45 if (len > 255) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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46 if (len > 65535) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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47 if (len > 16777215) {
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Andre Heinecke <andre.heinecke@intevation.de>
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48 *buf++ = 0x84;
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49 *buf++ = b[0];
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50 *buf++ = b[1];
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51 *buf++ = b[2];
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52 *buf++ = b[3];
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53 } else {
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54 *buf++ = 0x83;
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55 *buf++ = b[1];
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56 *buf++ = b[2];
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57 *buf++ = b[3];
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58 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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59 } else {
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60 *buf++ = 0x82;
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61 *buf++ = b[2];
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62 *buf++ = b[3];
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63 }
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64 } else {
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65 *buf++ = 0x81;
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66 *buf++ = b[3];
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67 }
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68 } else {
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69 *buf++ = b[3];
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70 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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71 return buf;
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72 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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73
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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74 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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75 * XXX This should be rewritten, generalized, to take a long instead
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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76 * of a PRInt32.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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77 */
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78 SECStatus
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79 DER_SetInteger(PLArenaPool *arena, SECItem *it, PRInt32 i)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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80 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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81 unsigned char bb[4];
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82 unsigned len;
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83
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84 bb[0] = (unsigned char) (i >> 24);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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85 bb[1] = (unsigned char) (i >> 16);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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86 bb[2] = (unsigned char) (i >> 8);
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87 bb[3] = (unsigned char) (i);
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88
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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89 /*
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90 ** Small integers are encoded in a single byte. Larger integers
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91 ** require progressively more space.
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92 */
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93 if (i < -128) {
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94 if (i < -32768L) {
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95 if (i < -8388608L) {
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96 len = 4;
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97 } else {
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98 len = 3;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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99 }
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100 } else {
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101 len = 2;
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102 }
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103 } else if (i > 127) {
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104 if (i > 32767L) {
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105 if (i > 8388607L) {
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106 len = 4;
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107 } else {
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108 len = 3;
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109 }
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110 } else {
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111 len = 2;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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112 }
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113 } else {
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114 len = 1;
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115 }
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116 it->data = (unsigned char*) PORT_ArenaAlloc(arena, len);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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117 if (!it->data) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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118 return SECFailure;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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119 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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120 it->len = len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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121 PORT_Memcpy(it->data, bb + (4 - len), len);
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122 return SECSuccess;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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123 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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124
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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125 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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126 * XXX This should be rewritten, generalized, to take an unsigned long instead
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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127 * of a PRUint32.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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128 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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129 SECStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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130 DER_SetUInteger(PLArenaPool *arena, SECItem *it, PRUint32 ui)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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131 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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132 unsigned char bb[5];
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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133 int len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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134
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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135 bb[0] = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
136 bb[1] = (unsigned char) (ui >> 24);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
137 bb[2] = (unsigned char) (ui >> 16);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
138 bb[3] = (unsigned char) (ui >> 8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
139 bb[4] = (unsigned char) (ui);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
140
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
141 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
142 ** Small integers are encoded in a single byte. Larger integers
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
143 ** require progressively more space.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
144 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
145 if (ui > 0x7f) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
146 if (ui > 0x7fff) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
147 if (ui > 0x7fffffL) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
148 if (ui >= 0x80000000L) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
149 len = 5;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
150 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
151 len = 4;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
152 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
153 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
154 len = 3;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
155 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
156 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
157 len = 2;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
158 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
159 } else {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
160 len = 1;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
161 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
162
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
163 it->data = (unsigned char *)PORT_ArenaAlloc(arena, len);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
164 if (it->data == NULL) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
165 return SECFailure;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
166 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
167
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
168 it->len = len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
169 PORT_Memcpy(it->data, bb + (sizeof(bb) - len), len);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
170
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
171 return SECSuccess;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
172 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
173
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
174 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
175 ** Convert a der encoded *signed* integer into a machine integral value.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
176 ** If an underflow/overflow occurs, sets error code and returns min/max.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
177 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
178 long
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
179 DER_GetInteger(const SECItem *it)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
180 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
181 long ival = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
182 unsigned len = it->len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
183 unsigned char *cp = it->data;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
184 unsigned long overflow = 0x1ffUL << (((sizeof(ival) - 1) * 8) - 1);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
185 unsigned long ofloinit;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
186
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
187 PORT_Assert(len);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
188 if (!len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
189 PORT_SetError(SEC_ERROR_INPUT_LEN);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
190 return 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
191 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
192
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
193 if (*cp & 0x80)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
194 ival = -1L;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
195 ofloinit = ival & overflow;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
196
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
197 while (len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
198 if ((ival & overflow) != ofloinit) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
199 PORT_SetError(SEC_ERROR_BAD_DER);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
200 if (ival < 0) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
201 return LONG_MIN;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
202 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
203 return LONG_MAX;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
204 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
205 ival = ival << 8;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
206 ival |= *cp++;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
207 --len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
208 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
209 return ival;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
210 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
211
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
212 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
213 ** Convert a der encoded *unsigned* integer into a machine integral value.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
214 ** If an overflow occurs, sets error code and returns max.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
215 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
216 unsigned long
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
217 DER_GetUInteger(SECItem *it)
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
218 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
219 unsigned long ival = 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
220 unsigned len = it->len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
221 unsigned char *cp = it->data;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
222 unsigned long overflow = 0xffUL << ((sizeof(ival) - 1) * 8);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
223
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
224 PORT_Assert(len);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
225 if (!len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
226 PORT_SetError(SEC_ERROR_INPUT_LEN);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
227 return 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
228 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
229
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
230 /* Cannot put a negative value into an unsigned container. */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
231 if (*cp & 0x80) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
232 PORT_SetError(SEC_ERROR_BAD_DER);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
233 return 0;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
234 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236 while (len) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237 if (ival & overflow) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 PORT_SetError(SEC_ERROR_BAD_DER);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 return ULONG_MAX;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
241 ival = ival << 8;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
242 ival |= *cp++;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 --len;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
245 return ival;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
246 }
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