16 int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)  in WPACKET_allocate_bytes()  argument
18     if (!WPACKET_reserve_bytes(pkt, len, allocbytes))  in WPACKET_allocate_bytes()
21     pkt->written += len;  in WPACKET_allocate_bytes()
22     pkt->curr += len;  in WPACKET_allocate_bytes()
26 int WPACKET_sub_allocate_bytes__(WPACKET *pkt, size_t len,  in WPACKET_sub_allocate_bytes__()  argument
29     if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)  in WPACKET_sub_allocate_bytes__()
30             || !WPACKET_allocate_bytes(pkt, len, allocbytes)  in WPACKET_sub_allocate_bytes__()
31             || !WPACKET_close(pkt))  in WPACKET_sub_allocate_bytes__()
40 int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)  in WPACKET_reserve_bytes()  argument
43     if (!ossl_assert(pkt->subs != NULL && len != 0))  in WPACKET_reserve_bytes()
46     if (pkt->maxsize - pkt->written < len)  in WPACKET_reserve_bytes()
49     if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {  in WPACKET_reserve_bytes()
53         reflen = (len > pkt->buf->length) ? len : pkt->buf->length;  in WPACKET_reserve_bytes()
62         if (BUF_MEM_grow(pkt->buf, newlen) == 0)  in WPACKET_reserve_bytes()
66         *allocbytes = WPACKET_get_curr(pkt);  in WPACKET_reserve_bytes()
71 int WPACKET_sub_reserve_bytes__(WPACKET *pkt, size_t len,  in WPACKET_sub_reserve_bytes__()  argument
74     if (!WPACKET_reserve_bytes(pkt, lenbytes + len, allocbytes))  in WPACKET_sub_reserve_bytes__()
90 static int wpacket_intern_init_len(WPACKET *pkt, size_t lenbytes)  in wpacket_intern_init_len()  argument
94     pkt->curr = 0;  in wpacket_intern_init_len()
95     pkt->written = 0;  in wpacket_intern_init_len()
97     if ((pkt->subs = OPENSSL_zalloc(sizeof(*pkt->subs))) == NULL) {  in wpacket_intern_init_len()
105     pkt->subs->pwritten = lenbytes;  in wpacket_intern_init_len()
106     pkt->subs->lenbytes = lenbytes;  in wpacket_intern_init_len()
108     if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars)) {  in wpacket_intern_init_len()
109         OPENSSL_free(pkt->subs);  in wpacket_intern_init_len()
110         pkt->subs = NULL;  in wpacket_intern_init_len()
113     pkt->subs->packet_len = lenchars - GETBUF(pkt);  in wpacket_intern_init_len()
118 int WPACKET_init_static_len(WPACKET *pkt, unsigned char *buf, size_t len,  in WPACKET_init_static_len()  argument
127     pkt->staticbuf = buf;  in WPACKET_init_static_len()
128     pkt->buf = NULL;  in WPACKET_init_static_len()
129     pkt->maxsize = (max < len) ? max : len;  in WPACKET_init_static_len()
131     return wpacket_intern_init_len(pkt, lenbytes);  in WPACKET_init_static_len()
134 int WPACKET_init_len(WPACKET *pkt, BUF_MEM *buf, size_t lenbytes)  in WPACKET_init_len()  argument
140     pkt->staticbuf = NULL;  in WPACKET_init_len()
141     pkt->buf = buf;  in WPACKET_init_len()
142     pkt->maxsize = maxmaxsize(lenbytes);  in WPACKET_init_len()
144     return wpacket_intern_init_len(pkt, lenbytes);  in WPACKET_init_len()
147 int WPACKET_init(WPACKET *pkt, BUF_MEM *buf)  in WPACKET_init()  argument
149     return WPACKET_init_len(pkt, buf, 0);  in WPACKET_init()
152 int WPACKET_set_flags(WPACKET *pkt, unsigned int flags)  in WPACKET_set_flags()  argument
155     if (!ossl_assert(pkt->subs != NULL))  in WPACKET_set_flags()
158     pkt->subs->flags = flags;  in WPACKET_set_flags()
186 static int wpacket_intern_close(WPACKET *pkt, WPACKET_SUB *sub, int doclose)  in wpacket_intern_close()  argument
188     size_t packlen = pkt->written - sub->pwritten;  in wpacket_intern_close()
201         if ((pkt->curr - sub->lenbytes) == sub->packet_len) {  in wpacket_intern_close()
202             pkt->written -= sub->lenbytes;  in wpacket_intern_close()
203             pkt->curr -= sub->lenbytes;  in wpacket_intern_close()
213                 && !put_value(&GETBUF(pkt)[sub->packet_len], packlen,  in wpacket_intern_close()
218         pkt->subs = sub->parent;  in wpacket_intern_close()
225 int WPACKET_fill_lengths(WPACKET *pkt)  in WPACKET_fill_lengths()  argument
229     if (!ossl_assert(pkt->subs != NULL))  in WPACKET_fill_lengths()
232     for (sub = pkt->subs; sub != NULL; sub = sub->parent) {  in WPACKET_fill_lengths()
233         if (!wpacket_intern_close(pkt, sub, 0))  in WPACKET_fill_lengths()
240 int WPACKET_close(WPACKET *pkt)  in WPACKET_close()  argument
246     if (pkt->subs == NULL || pkt->subs->parent == NULL)  in WPACKET_close()
249     return wpacket_intern_close(pkt, pkt->subs, 1);  in WPACKET_close()
252 int WPACKET_finish(WPACKET *pkt)  in WPACKET_finish()  argument
260     if (pkt->subs == NULL || pkt->subs->parent != NULL)  in WPACKET_finish()
263     ret = wpacket_intern_close(pkt, pkt->subs, 1);  in WPACKET_finish()
265         OPENSSL_free(pkt->subs);  in WPACKET_finish()
266         pkt->subs = NULL;  in WPACKET_finish()
272 int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)  in WPACKET_start_sub_packet_len__()  argument
278     if (!ossl_assert(pkt->subs != NULL))  in WPACKET_start_sub_packet_len__()
286     sub->parent = pkt->subs;  in WPACKET_start_sub_packet_len__()
287     pkt->subs = sub;  in WPACKET_start_sub_packet_len__()
288     sub->pwritten = pkt->written + lenbytes;  in WPACKET_start_sub_packet_len__()
296     if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))  in WPACKET_start_sub_packet_len__()
299     sub->packet_len = lenchars - GETBUF(pkt);  in WPACKET_start_sub_packet_len__()
304 int WPACKET_start_sub_packet(WPACKET *pkt)  in WPACKET_start_sub_packet()  argument
306     return WPACKET_start_sub_packet_len__(pkt, 0);  in WPACKET_start_sub_packet()
309 int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)  in WPACKET_put_bytes__()  argument
315             || !WPACKET_allocate_bytes(pkt, size, &data)  in WPACKET_put_bytes__()
322 int WPACKET_set_max_size(WPACKET *pkt, size_t maxsize)  in WPACKET_set_max_size()  argument
328     if (!ossl_assert(pkt->subs != NULL))  in WPACKET_set_max_size()
332     for (sub = pkt->subs; sub->parent != NULL; sub = sub->parent)  in WPACKET_set_max_size()
337         lenbytes = sizeof(pkt->maxsize);  in WPACKET_set_max_size()
339     if (maxmaxsize(lenbytes) < maxsize || maxsize < pkt->written)  in WPACKET_set_max_size()
342     pkt->maxsize = maxsize;  in WPACKET_set_max_size()
347 int WPACKET_memset(WPACKET *pkt, int ch, size_t len)  in WPACKET_memset()  argument
354     if (!WPACKET_allocate_bytes(pkt, len, &dest))  in WPACKET_memset()
362 int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)  in WPACKET_memcpy()  argument
369     if (!WPACKET_allocate_bytes(pkt, len, &dest))  in WPACKET_memcpy()
377 int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,  in WPACKET_sub_memcpy__()  argument
380     if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)  in WPACKET_sub_memcpy__()
381             || !WPACKET_memcpy(pkt, src, len)  in WPACKET_sub_memcpy__()
382             || !WPACKET_close(pkt))  in WPACKET_sub_memcpy__()
388 int WPACKET_get_total_written(WPACKET *pkt, size_t *written)  in WPACKET_get_total_written()  argument
394     *written = pkt->written;  in WPACKET_get_total_written()
399 int WPACKET_get_length(WPACKET *pkt, size_t *len)  in WPACKET_get_length()  argument
402     if (!ossl_assert(pkt->subs != NULL && len != NULL))  in WPACKET_get_length()
405     *len = pkt->written - pkt->subs->pwritten;  in WPACKET_get_length()
410 unsigned char *WPACKET_get_curr(WPACKET *pkt)  in WPACKET_get_curr()  argument
412     return GETBUF(pkt) + pkt->curr;  in WPACKET_get_curr()
415 void WPACKET_cleanup(WPACKET *pkt)  in WPACKET_cleanup()  argument
419     for (sub = pkt->subs; sub != NULL; sub = parent) {  in WPACKET_cleanup()
423     pkt->subs = NULL;  in WPACKET_cleanup()