Differences From Artifact [0b76ffb19a]:
- File src/OFASN1BitString.m — part of check-in [0509d7a844] at 2019-01-03 19:13:03 on branch trunk — Update copyright (user: js, size: 2791) [annotate] [blame] [check-ins using]
To Artifact [12624c872e]:
- File
src/OFASN1BitString.m
— part of check-in
[c60933a59b]
at
2019-02-09 17:44:00
on branch trunk
— OFASN1*: Add designated initializer
This is in preparation for DER serialization support. (user: js, size: 3589) [annotate] [blame] [check-ins using]
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25 26 27 28 29 30 31 | #import "OFInvalidFormatException.h" #import "OFOutOfRangeException.h" @implementation OFASN1BitString @synthesize bitStringValue = _bitStringValue; @synthesize bitStringLength = _bitStringLength; | > > > > > > > > | > > | > > > > > > > > > > > > > > | > < | | < < > > > > > > > > > > | 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 |
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"
@implementation OFASN1BitString
@synthesize bitStringValue = _bitStringValue;
@synthesize bitStringLength = _bitStringLength;
+ (instancetype)bitStringWithBitStringValue: (OFData *)bitStringValue
bitStringLength: (size_t)bitStringLength
{
return [[[self alloc]
initWithBitStringValue: bitStringValue
bitStringLength: bitStringLength] autorelease];
}
- (instancetype)initWithBitStringValue: (OFData *)bitStringValue
bitStringLength: (size_t)bitStringLength
{
self = [super init];
@try {
if ([bitStringValue count] * [bitStringValue itemSize] !=
bitStringLength / 8)
@throw [OFInvalidFormatException exception];
_bitStringValue = [bitStringValue copy];
_bitStringLength = bitStringLength;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (instancetype)initWithTagClass: (of_asn1_tag_class_t)tagClass
tagNumber: (of_asn1_tag_number_t)tagNumber
constructed: (bool)constructed
DEREncodedContents: (OFData *)DEREncodedContents
{
void *pool = objc_autoreleasePoolPush();
OFData *bitStringValue;
size_t bitStringLength;
@try {
unsigned char lastByteBits;
size_t count = [DEREncodedContents count];
if (tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
tagNumber != OF_ASN1_TAG_NUMBER_BIT_STRING || constructed)
@throw [OFInvalidArgumentException exception];
if ([DEREncodedContents itemSize] != 1 || count == 0)
@throw [OFInvalidFormatException exception];
lastByteBits =
*(unsigned char *)[DEREncodedContents itemAtIndex: 0];
if (count == 1 && lastByteBits != 0)
@throw [OFInvalidFormatException exception];
if (SIZE_MAX / 8 < count - 1 ||
SIZE_MAX - (count - 1) * 8 < lastByteBits)
@throw [OFOutOfRangeException exception];
bitStringLength = (count - 1) * 8 + lastByteBits;
bitStringValue = [[DEREncodedContents
subdataWithRange: of_range(1, count - 1)] copy];
} @catch (id e) {
[self release];
@throw e;
}
self = [self initWithBitStringValue: bitStringValue
bitStringLength: bitStringLength];
objc_autoreleasePoolPop(pool);
return self;
}
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (void)dealloc
{
[_bitStringValue release];
[super dealloc];
}
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