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https://github.com/moparisthebest/spdylay
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Updated doc
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@ -62,6 +62,21 @@ static void spdylay_frame_unpack_ctrl_hd(spdylay_ctrl_hd *hd,
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hd->length = spdylay_get_uint32(&buf[4]) & SPDYLAY_LENGTH_MASK;
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}
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/*
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* Packs name/value pairs in |nv| in |*buf_ptr| with offset
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* |nv_offset|. It means first byte of packed name/value pairs is
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* stored in |*buf_ptr|+|nv_offset|. |*buf_ptr| and |*nvbuf_ptr| are
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* expanded as necessary.
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*
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* This function returns the number of the bytes for the frame
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* containing this name/value pairs if it succeeds, or one of the
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* following negative error codes:
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*
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* SPDYLAY_ERR_ZLIB
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* The deflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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static ssize_t spdylay_frame_alloc_pack_nv(uint8_t **buf_ptr,
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size_t *buflen_ptr,
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uint8_t **nvbuf_ptr,
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@ -196,6 +211,21 @@ int spdylay_frame_unpack_nv(char ***nv_ptr, const uint8_t *in, size_t inlen)
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return 0;
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}
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/*
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* Unpacks name/value pairs from buffer |in| with length |inlen|. The
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* necessary memory area required for output is allocated and its
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* pointer is assigned to |nv_ptr|. |inflatebuf| is used for inflate
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* operation. |*nvbuf_ptr| is used for temporarily stored inflated
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* name/value pair in wire format. It is expanded as necessary.
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*
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* This function returns 0 if it succeeds, or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_ZLIB
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* The inflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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static int spdylay_frame_alloc_unpack_nv(char ***nv_ptr,
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spdylay_buffer *inflatebuf,
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uint8_t **nvbuf_ptr,
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@ -54,10 +54,16 @@
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* |*buf_ptr|, |*buflen_ptr|, |*nvbuf_ptr| and |*nvbuflen_ptr| are
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* updated accordingly.
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*
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* This function returns the size of
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* packed frame if it succeeds, or returns negative error
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* code. frame->hd.length is assigned after length is determined
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* during packing process.
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* frame->hd.length is assigned after length is determined during
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* packing process.
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*
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* This function returns the size of packed frame if it succeeds, or
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* returns one of the following negative error codes:
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*
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* SPDYLAY_ERR_ZLIB
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* The deflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_syn_stream(uint8_t **buf_ptr,
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size_t *buflen_ptr,
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@ -77,7 +83,15 @@ ssize_t spdylay_frame_pack_syn_stream(uint8_t **buf_ptr,
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* inflated name/value pairs. This function expands |*nvbuf_ptr| as
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* necessary and updates these variables.
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*
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* This function returns 0 if it succeeds or negative error code.
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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* SPDYLAY_ERR_ZLIB
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* The inflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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int spdylay_frame_unpack_syn_stream(spdylay_syn_stream *frame,
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spdylay_buffer *inflatebuf,
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@ -96,10 +110,18 @@ int spdylay_frame_unpack_syn_stream(spdylay_syn_stream *frame,
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* frame and name/value pairs. When expansion occurred, memory
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* previously pointed by |*buf_ptr| and |*nvbuf_ptr| is freed.
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* |*buf_ptr|, |*buflen_ptr|, |*nvbuf_ptr| and |*nvbuflen_ptr| are
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* updated accordingly. This function returns the size of packed
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* frame it it succeeds, or returns negative error
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* code. frame->hd.length is assigned after length is determined
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* during packing process.
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* updated accordingly.
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*
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* frame->hd.length is assigned after length is determined during
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* packing process.
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*
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* This function returns the size of packed frame if it succeeds, or
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* returns one of the following negative error codes:
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*
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* SPDYLAY_ERR_ZLIB
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* The deflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_syn_reply(uint8_t **buf_ptr,
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size_t *buflen_ptr,
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@ -117,7 +139,15 @@ ssize_t spdylay_frame_pack_syn_reply(uint8_t **buf_ptr,
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* inflated name/value pairs. This function expands |*nvbuf_ptr| as
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* necessary and updates these variables.
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*
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* This function returns 0 if it succeeds or negative error code.
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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* SPDYLAY_ERR_ZLIB
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* The inflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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int spdylay_frame_unpack_syn_reply(spdylay_syn_reply *frame,
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spdylay_buffer *inflatebuf,
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@ -131,15 +161,25 @@ int spdylay_frame_unpack_syn_reply(spdylay_syn_reply *frame,
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* Packs PING frame |frame| in wire format and store it in
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* |*buf_ptr|. The capacity of |*buf_ptr| is |*buflen_ptr|
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* length. This function expands |*buf_ptr| as necessary to store
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* given |frame|. This function returns the size of packed frame if it
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* succeeds, or negative error code.
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* given |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_ping(uint8_t **buf_ptr, size_t *buflen_ptr,
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spdylay_ping *frame);
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/*
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* Unpacks PING wire format into |frame|. This function returns 0 if
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* it succeeds, or negative error code.
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* Unpacks PING wire format into |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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*/
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int spdylay_frame_unpack_ping(spdylay_ping *frame,
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const uint8_t *head, size_t headlen,
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@ -149,15 +189,25 @@ int spdylay_frame_unpack_ping(spdylay_ping *frame,
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* Packs GOAWAY frame |frame | in wire format and store it in
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* |*buf_ptr|. The capacity of |*buf_ptr| is |*buflen_ptr|
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* length. This function expands |*buf_ptr| as necessary to store
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* given |frame|. This function returns the size of packed frame if it
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* succeeds, or negative error code.
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* given |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_goaway(uint8_t **buf_ptr, size_t *buflen_ptr,
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spdylay_goaway *frame);
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/*
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* Unpacks GOAWAY wire format into |frame|. This function returns 0 if
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* it succeeds, or negative error code.
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* Unpacks GOAWAY wire format into |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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*/
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int spdylay_frame_unpack_goaway(spdylay_goaway *frame,
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const uint8_t *head, size_t headlen,
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@ -172,10 +222,18 @@ int spdylay_frame_unpack_goaway(spdylay_goaway *frame,
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* frame and name/value pairs. When expansion occurred, memory
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* previously pointed by |*buf_ptr| and |*nvbuf_ptr| is freed.
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* |*buf_ptr|, |*buflen_ptr|, |*nvbuf_ptr| and |*nvbuflen_ptr| are
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* updated accordingly. This function returns the size of packed
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* frame it it succeeds, or returns negative error
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* code. frame->hd.length is assigned after length is determined
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* during packing process.
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* updated accordingly.
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*
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* frame->hd.length is assigned after length is determined during
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* packing process.
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*
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* This function returns the size of packed frame if it succeeds, or
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* returns one of the following negative error codes:
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*
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* SPDYLAY_ERR_ZLIB
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* The deflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_headers(uint8_t **buf_ptr, size_t *buflen_ptr,
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uint8_t **nvbuf_ptr, size_t *nvbuflen_ptr,
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@ -191,7 +249,15 @@ ssize_t spdylay_frame_pack_headers(uint8_t **buf_ptr, size_t *buflen_ptr,
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* inflated name/value pairs. This function expands |*nvbuf_ptr| as
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* necessary and updates these variables.
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*
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* This function returns 0 if it succeeds or negative error code.
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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* SPDYLAY_ERR_ZLIB
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* The inflate operation failed.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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int spdylay_frame_unpack_headers(spdylay_headers *frame,
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spdylay_buffer *inflatebuf,
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@ -206,15 +272,25 @@ int spdylay_frame_unpack_headers(spdylay_headers *frame,
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* |*buf_ptr|. The capacity of |*buf_ptr| is |*buflen_ptr|
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* length. This function expands |*buf_ptr| as necessary to store
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* given |frame|. In spdy/2 spc, RST_STREAM wire format is always 16
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* bytes long. This function returns the size of packed frame if it
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* succeeds, or negative error code.
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* bytes long.
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*
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* This function returns the size of packed frame if it succeeds, or
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* returns one of the following negative error codes:
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*
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_rst_stream(uint8_t **buf_ptr, size_t *buflen_ptr,
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spdylay_rst_stream *frame);
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/*
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* Unpacks RST_STREAM frame byte sequence into |frame|. This function
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* returns 0 if it succeeds, or negative error code.
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* Unpacks RST_STREAM frame byte sequence into |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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*/
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int spdylay_frame_unpack_rst_stream(spdylay_rst_stream *frame,
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const uint8_t *head, size_t headlen,
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@ -224,15 +300,27 @@ int spdylay_frame_unpack_rst_stream(spdylay_rst_stream *frame,
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* Packs SETTINGS frame |frame| in wire format and store it in
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* |*buf_ptr|. The capacity of |*buf_ptr| is |*buflen_ptr|
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* length. This function expands |*buf_ptr| as necessary to store
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* given |frame|. This function returns the size of packed frame if it
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* succeeds, or negative error code.
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* given |frame|.
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*
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* This function returns the size of packed frame if it succeeds, or
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* returns one of the following negative error codes:
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*
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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ssize_t spdylay_frame_pack_settings(uint8_t **buf_ptr, size_t *buflen_ptr,
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spdylay_settings *frame);
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/*
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* Unpacks SETTINGS wire format into |frame|. This function returns 0
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* if it succeeds, or negative error code.
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* Unpacks SETTINGS wire format into |frame|.
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*
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* This function returns 0 if it succeeds or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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int spdylay_frame_unpack_settings(spdylay_settings *frame,
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const uint8_t *head, size_t headlen,
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@ -242,8 +330,7 @@ int spdylay_frame_unpack_settings(spdylay_settings *frame,
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* Returns number of bytes to pack name/value pairs |nv|. This
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* function expects |nv| is sorted in ascending order of key. This
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* function can handles duplicate keys and concatenation of thier
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* values with '\0'. This function returns 0 if it succeeds, or
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* negative error code.
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* values with '\0'.
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*/
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size_t spdylay_frame_count_nv_space(char **nv);
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@ -275,7 +362,11 @@ ssize_t spdylay_frame_pack_nv(uint8_t *buf, char **nv);
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* (N*2+1)*sizeof(char*)+sum(strlen(name)+1+strlen(value)+1){for each
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* name/value pair}.
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*
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* This function returns 0 if it succeeds, or negative error code.
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* This function returns 0 if it succeeds, or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_INVALID_FRAME
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* The input data are invalid.
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*/
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int spdylay_frame_count_unpack_nv_space
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(size_t *num_nv_ptr, size_t *buf_size_ptr, const uint8_t *in, size_t inlen);
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@ -283,8 +374,13 @@ int spdylay_frame_count_unpack_nv_space
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/*
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* Unpacks name/value pairs in wire format |in| with length |inlen|
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* and stores them in |*nv_ptr|. Thif function allocates enough
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* memory to store name/value pairs in |*nv_ptr|. This function
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* returns 0 if it succeeds, or negative error code.
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* memory to store name/value pairs in |*nv_ptr|.
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*
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* This function returns 0 if it succeeds, or one of the following
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* negative error codes:
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*
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* SPDYLAY_ERR_NOMEM
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* Out of memory.
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*/
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int spdylay_frame_unpack_nv(char ***nv_ptr, const uint8_t *in, size_t inlen);
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