diff options
Diffstat (limited to 'source3/libsmb/asn1.c')
| -rw-r--r-- | source3/libsmb/asn1.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/source3/libsmb/asn1.c b/source3/libsmb/asn1.c index 333d157905..09d4fbb6c9 100644 --- a/source3/libsmb/asn1.c +++ b/source3/libsmb/asn1.c @@ -240,7 +240,9 @@ BOOL asn1_start_tag(ASN1_DATA *data, uint8 tag) uint8 b; struct nesting *nesting; - asn1_read_uint8(data, &b); + if (!asn1_read_uint8(data, &b)) + return False; + if (b != tag) { data->has_error = True; return False; @@ -251,13 +253,18 @@ BOOL asn1_start_tag(ASN1_DATA *data, uint8 tag) return False; } - asn1_read_uint8(data, &b); + if (!asn1_read_uint8(data, &b)) { + return False; + } + if (b & 0x80) { int n = b & 0x7f; - asn1_read_uint8(data, &b); + if (!asn1_read_uint8(data, &b)) + return False; nesting->taglen = b; while (n > 1) { - asn1_read_uint8(data, &b); + if (!asn1_read_uint8(data, &b)) + return False; nesting->taglen = (nesting->taglen << 8) | b; n--; } @@ -404,7 +411,11 @@ BOOL asn1_check_enumerated(ASN1_DATA *data, int v) if (!asn1_start_tag(data, ASN1_ENUMERATED)) return False; asn1_read_uint8(data, &b); asn1_end_tag(data); - return !data->has_error && (v == b); + + if (v != b) + data->has_error = False; + + return !data->has_error; } /* write an enumarted value to the stream */ |