diff options
Diffstat (limited to 'source4/libcli/util/asn1.c')
| -rw-r--r-- | source4/libcli/util/asn1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/source4/libcli/util/asn1.c b/source4/libcli/util/asn1.c index 943ce4d1c1..da51340774 100644 --- a/source4/libcli/util/asn1.c +++ b/source4/libcli/util/asn1.c @@ -239,6 +239,28 @@ BOOL asn1_read_uint8(ASN1_DATA *data, uint8_t *v) return asn1_read(data, v, 1); } +/* read from a ASN1 buffer, advancing the buffer pointer */ +BOOL asn1_peek(ASN1_DATA *data, void *p, int len) +{ + if (len < 0 || data->ofs + len < data->ofs || data->ofs + len < len) { + data->has_error = True; + return False; + } + + if (data->ofs + len > data->length) { + data->has_error = True; + return False; + } + memcpy(p, data->data + data->ofs, len); + return True; +} + +/* read a uint8_t from a ASN1 buffer */ +BOOL asn1_peek_uint8(ASN1_DATA *data, uint8_t *v) +{ + return asn1_peek(data, v, 1); +} + /* start reading a nested asn1 structure */ BOOL asn1_start_tag(ASN1_DATA *data, uint8_t tag) { |