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| author | Jeremy Allison <jra@samba.org> | 2011-05-24 12:47:31 -0700 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2011-05-24 22:57:16 +0200 |
| commit | e719dfd4dc178f001a5f804fb1ac4e587574415f (patch) | |
| tree | 4c6b8b4da5ef102718c6ae633adec8089656b855 | |
| parent | ede98c0e5190bf59461703629d5a4742ad8e044f (diff) | |
| download | samba-e719dfd4dc178f001a5f804fb1ac4e587574415f.tar.gz samba-e719dfd4dc178f001a5f804fb1ac4e587574415f.tar.bz2 samba-e719dfd4dc178f001a5f804fb1ac4e587574415f.zip | |
Fix our asn.1 parser to handle negative numbers.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Tue May 24 22:57:16 CEST 2011 on sn-devel-104
| -rw-r--r-- | lib/util/asn1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/util/asn1.c b/lib/util/asn1.c index b716da63c0..c23bf65b8d 100644 --- a/lib/util/asn1.c +++ b/lib/util/asn1.c @@ -885,10 +885,19 @@ bool asn1_read_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *blo bool asn1_read_implicit_Integer(struct asn1_data *data, int *i) { uint8_t b; + bool first_byte = true; *i = 0; while (!data->has_error && asn1_tag_remaining(data)>0) { if (!asn1_read_uint8(data, &b)) return false; + if (first_byte) { + if (b & 0x80) { + /* Number is negative. + Set i to -1 for sign extend. */ + *i = -1; + } + first_byte = false; + } *i = (*i << 8) + b; } return !data->has_error; |