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authorHarald Welte <laforge@gnumonks.org>2010-07-20 00:03:44 +0200
committerHarald Welte <laforge@gnumonks.org>2010-07-20 00:03:44 +0200
commitec0e217b0647eb798576a7d3366b39c159c00624 (patch)
tree88404309798e2fac2844b4e76224b6ad1d7c5375 /include/asn1c/per_encoder.h
parentb1e3ee75318536dac0a91817c5e4d35d61893ba6 (diff)
Update to asn1c official repository svn trunk r1409
Diffstat (limited to 'include/asn1c/per_encoder.h')
-rw-r--r--include/asn1c/per_encoder.h24
1 files changed, 22 insertions, 2 deletions
diff --git a/include/asn1c/per_encoder.h b/include/asn1c/per_encoder.h
index 9ac130b..95a6506 100644
--- a/include/asn1c/per_encoder.h
+++ b/include/asn1c/per_encoder.h
@@ -1,5 +1,5 @@
/*-
- * Copyright (c) 2006 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Copyright (c) 2006, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#ifndef _PER_ENCODER_H_
@@ -16,6 +16,9 @@ struct asn_TYPE_descriptor_s; /* Forward declaration */
/*
* Unaligned PER encoder of any ASN.1 type. May be invoked by the application.
+ * WARNING: This function returns the number of encoded bits in the .encoded
+ * field of the return value. Use the following formula to convert to bytes:
+ * bytes = ((.encoded + 7) / 8)
*/
asn_enc_rval_t uper_encode(struct asn_TYPE_descriptor_s *type_descriptor,
void *struct_ptr, /* Structure to be encoded */
@@ -23,7 +26,11 @@ asn_enc_rval_t uper_encode(struct asn_TYPE_descriptor_s *type_descriptor,
void *app_key /* Arbitrary callback argument */
);
-/* A variant of uper_encode() which encodes data into the existing buffer */
+/*
+ * A variant of uper_encode() which encodes data into the existing buffer
+ * WARNING: This function returns the number of encoded bits in the .encoded
+ * field of the return value.
+ */
asn_enc_rval_t uper_encode_to_buffer(
struct asn_TYPE_descriptor_s *type_descriptor,
void *struct_ptr, /* Structure to be encoded */
@@ -31,6 +38,19 @@ asn_enc_rval_t uper_encode_to_buffer(
size_t buffer_size /* Initial buffer size (max) */
);
+/*
+ * A variant of uper_encode_to_buffer() which allocates buffer itself.
+ * Returns the number of bytes in the buffer or -1 in case of failure.
+ * WARNING: This function produces a "Production of the complete encoding",
+ * with length of at least one octet. Contrast this to precise bit-packing
+ * encoding of uper_encode() and uper_encode_to_buffer().
+ */
+ssize_t uper_encode_to_new_buffer(
+ struct asn_TYPE_descriptor_s *type_descriptor,
+ asn_per_constraints_t *constraints,
+ void *struct_ptr, /* Structure to be encoded */
+ void **buffer_r /* Buffer allocated and returned */
+);
/*
* Type of the generic PER encoder function.