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authorBjörn Gustavsson <[email protected]>2013-02-04 11:06:43 +0100
committerBjörn Gustavsson <[email protected]>2013-02-04 16:25:42 +0100
commit0fd671609f7b31a9313d1575434e7273f3f2cd09 (patch)
treeffab0e500bc4aed6cf36aecc25d8987864b954db /lib
parent10c73156d654bc1ada7afbc3cd7f81b2091057f0 (diff)
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asn1_erl_nif: Correct broken length encoding
The ber_bin_v2 backend calls a NIF function to decode all tags and lengths. Even open types that should not be decoded will also be decoded, which makes it necessary to later re-encode the data using a NIF function. The NIF function incorrectly encoded lengths.
Diffstat (limited to 'lib')
-rw-r--r--lib/asn1/c_src/asn1_erl_nif.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/asn1/c_src/asn1_erl_nif.c b/lib/asn1/c_src/asn1_erl_nif.c
index dbff14f9b3..26803a25a4 100644
--- a/lib/asn1/c_src/asn1_erl_nif.c
+++ b/lib/asn1/c_src/asn1_erl_nif.c
@@ -1134,8 +1134,8 @@ int ber_encode_length(size_t size, mem_chunk_t **curr, unsigned int *count) {
(*curr)->curr -= 1;
(*count)++;
} else {
- int chunks = size / 256 + 1;
- if (ber_check_memory(curr, chunks + 1))
+ int chunks = 0;
+ if (ber_check_memory(curr, 8))
return ASN1_ERROR;
while (size > 0)
@@ -1144,6 +1144,7 @@ int ber_encode_length(size_t size, mem_chunk_t **curr, unsigned int *count) {
size >>= 8;
(*curr)->curr -= 1;
(*count)++;
+ chunks++;
}
*(*curr)->curr = chunks | 0x80;