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Diffstat (limited to 'deps/openssl/openssl/crypto/asn1/asn1_lib.c')
-rw-r--r--deps/openssl/openssl/crypto/asn1/asn1_lib.c57
1 files changed, 32 insertions, 25 deletions
diff --git a/deps/openssl/openssl/crypto/asn1/asn1_lib.c b/deps/openssl/openssl/crypto/asn1/asn1_lib.c
index 8ca53b4ce4..88c4b53918 100644
--- a/deps/openssl/openssl/crypto/asn1/asn1_lib.c
+++ b/deps/openssl/openssl/crypto/asn1/asn1_lib.c
@@ -23,12 +23,12 @@ static int _asn1_check_infinite_end(const unsigned char **p, long len)
* If there is 0 or 1 byte left, the length check should pick things up
*/
if (len <= 0)
- return (1);
+ return 1;
else if ((len >= 2) && ((*p)[0] == 0) && ((*p)[1] == 0)) {
(*p) += 2;
- return (1);
+ return 1;
}
- return (0);
+ return 0;
}
int ASN1_check_infinite_end(unsigned char **p, long len)
@@ -96,47 +96,54 @@ int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
ret |= 0x80;
}
*pp = p;
- return (ret | inf);
+ return ret | inf;
err:
ASN1err(ASN1_F_ASN1_GET_OBJECT, ASN1_R_HEADER_TOO_LONG);
- return (0x80);
+ return 0x80;
}
+/*
+ * Decode a length field.
+ * The short form is a single byte defining a length 0 - 127.
+ * The long form is a byte 0 - 127 with the top bit set and this indicates
+ * the number of following octets that contain the length. These octets
+ * are stored most significant digit first.
+ */
static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
long max)
{
const unsigned char *p = *pp;
unsigned long ret = 0;
- unsigned long i;
+ int i;
if (max-- < 1)
return 0;
if (*p == 0x80) {
*inf = 1;
- ret = 0;
p++;
} else {
*inf = 0;
i = *p & 0x7f;
- if (*(p++) & 0x80) {
- if (max < (long)i + 1)
+ if (*p++ & 0x80) {
+ if (max < i + 1)
return 0;
/* Skip leading zeroes */
- while (i && *p == 0) {
+ while (i > 0 && *p == 0) {
p++;
i--;
}
- if (i > sizeof(long))
+ if (i > (int)sizeof(long))
return 0;
- while (i-- > 0) {
- ret <<= 8L;
- ret |= *(p++);
+ while (i > 0) {
+ ret <<= 8;
+ ret |= *p++;
+ i--;
}
+ if (ret > LONG_MAX)
+ return 0;
} else
ret = i;
}
- if (ret > LONG_MAX)
- return 0;
*pp = p;
*rl = (long)ret;
return 1;
@@ -268,7 +275,7 @@ int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
if (len < 0) {
if (data == NULL)
- return (0);
+ return 0;
else
len = strlen(data);
}
@@ -278,7 +285,7 @@ int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
if (str->data == NULL) {
ASN1err(ASN1_F_ASN1_STRING_SET, ERR_R_MALLOC_FAILURE);
str->data = c;
- return (0);
+ return 0;
}
}
str->length = len;
@@ -287,7 +294,7 @@ int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
/* an allowance for strings :-) */
str->data[len] = '\0';
}
- return (1);
+ return 1;
}
void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
@@ -299,7 +306,7 @@ void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
ASN1_STRING *ASN1_STRING_new(void)
{
- return (ASN1_STRING_type_new(V_ASN1_OCTET_STRING));
+ return ASN1_STRING_type_new(V_ASN1_OCTET_STRING);
}
ASN1_STRING *ASN1_STRING_type_new(int type)
@@ -309,10 +316,10 @@ ASN1_STRING *ASN1_STRING_type_new(int type)
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
ASN1err(ASN1_F_ASN1_STRING_TYPE_NEW, ERR_R_MALLOC_FAILURE);
- return (NULL);
+ return NULL;
}
ret->type = type;
- return (ret);
+ return ret;
}
void asn1_string_embed_free(ASN1_STRING *a, int embed)
@@ -349,11 +356,11 @@ int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
if (i == 0) {
i = memcmp(a->data, b->data, a->length);
if (i == 0)
- return (a->type - b->type);
+ return a->type - b->type;
else
- return (i);
+ return i;
} else
- return (i);
+ return i;
}
int ASN1_STRING_length(const ASN1_STRING *x)