* https://www.openssl.org/source/license.html
*/
+#include <limits.h>
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/asn1.h>
unsigned char *p, *d;
if (a == NULL)
- return (0);
+ return 0;
len = a->length;
ret = 1 + len;
if (pp == NULL)
- return (ret);
+ return ret;
p = *pp;
*(p++) = (unsigned char)bits;
d = a->data;
- memcpy(p, d, len);
- p += len;
- if (len > 0)
+ if (len > 0) {
+ memcpy(p, d, len);
+ p += len;
p[-1] &= (0xff << bits);
+ }
*pp = p;
- return (ret);
+ return ret;
}
ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
goto err;
}
+ if (len > INT_MAX) {
+ i = ASN1_R_STRING_TOO_LONG;
+ goto err;
+ }
+
if ((a == NULL) || ((*a) == NULL)) {
if ((ret = ASN1_BIT_STRING_new()) == NULL)
- return (NULL);
+ return NULL;
} else
ret = (*a);
if (a != NULL)
(*a) = ret;
*pp = p;
- return (ret);
+ return ret;
err:
ASN1err(ASN1_F_C2I_ASN1_BIT_STRING, i);
if ((a == NULL) || (*a != ret))
ASN1_BIT_STRING_free(ret);
- return (NULL);
+ return NULL;
}
/*
- * These next 2 functions from Goetz Babin-Ebell <babinebell@trustcenter.de>
+ * These next 2 functions from Goetz Babin-Ebell.
*/
int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value)
{
if ((a->length < (w + 1)) || (a->data == NULL)) {
if (!value)
- return (1); /* Don't need to set */
+ return 1; /* Don't need to set */
c = OPENSSL_clear_realloc(a->data, a->length, w + 1);
if (c == NULL) {
ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT, ERR_R_MALLOC_FAILURE);
a->data[w] = ((a->data[w]) & iv) | v;
while ((a->length > 0) && (a->data[a->length - 1] == 0))
a->length--;
- return (1);
+ return 1;
}
int ASN1_BIT_STRING_get_bit(const ASN1_BIT_STRING *a, int n)
w = n / 8;
v = 1 << (7 - (n & 0x07));
if ((a == NULL) || (a->length < (w + 1)) || (a->data == NULL))
- return (0);
+ return 0;
return ((a->data[w] & v) != 0);
}