diff options
Diffstat (limited to 'source4/heimdal/lib/asn1/der_get.c')
-rw-r--r-- | source4/heimdal/lib/asn1/der_get.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/source4/heimdal/lib/asn1/der_get.c b/source4/heimdal/lib/asn1/der_get.c index aee565040f..5a062fb339 100644 --- a/source4/heimdal/lib/asn1/der_get.c +++ b/source4/heimdal/lib/asn1/der_get.c @@ -305,7 +305,7 @@ der_get_octet_string_ber (const unsigned char *p, size_t len, void *ptr; ptr = realloc(data->data, data->length + datalen); - if (ptr == NULL) { + if (ptr == NULL && data->length + datalen != 0) { e = ENOMEM; goto out; } @@ -354,21 +354,23 @@ der_get_heim_integer (const unsigned char *p, size_t len, p++; data->length--; } - data->data = malloc(data->length); - if (data->data == NULL) { - data->length = 0; - if (size) - *size = 0; - return ENOMEM; - } - q = &((unsigned char*)data->data)[data->length - 1]; - p += data->length - 1; - while (q >= (unsigned char*)data->data) { - *q = *p ^ 0xff; - if (carry) - carry = !++*q; - p--; - q--; + if (data->length) { + data->data = malloc(data->length); + if (data->data == NULL) { + data->length = 0; + if (size) + *size = 0; + return ENOMEM; + } + q = &((unsigned char*)data->data)[data->length - 1]; + p += data->length - 1; + while (q >= (unsigned char*)data->data) { + *q = *p ^ 0xff; + if (carry) + carry = !++*q; + p--; + q--; + } } } else { data->negative = 0; |