29 	struct cbb_buffer_st *base;  in cbb_init()  local
31 	if ((base = calloc(1, sizeof(struct cbb_buffer_st))) == NULL)  in cbb_init()
34 	base->buf = buf;  in cbb_init()
35 	base->len = 0;  in cbb_init()
36 	base->cap = cap;  in cbb_init()
37 	base->can_resize = 1;  in cbb_init()
39 	cbb->base = base;  in cbb_init()
74 	cbb->base->can_resize = 0;  in CBB_init_fixed()
82 	if (cbb->base) {  in CBB_cleanup()
83 		if (cbb->base->can_resize)  in CBB_cleanup()
84 			freezero(cbb->base->buf, cbb->base->cap);  in CBB_cleanup()
85 		free(cbb->base);  in CBB_cleanup()
87 	cbb->base = NULL;  in CBB_cleanup()
92 cbb_buffer_add(struct cbb_buffer_st *base, uint8_t **out, size_t len)  in cbb_buffer_add()  argument
96 	if (base == NULL)  in cbb_buffer_add()
99 	newlen = base->len + len;  in cbb_buffer_add()
100 	if (newlen < base->len)  in cbb_buffer_add()
104 	if (newlen > base->cap) {  in cbb_buffer_add()
105 		size_t newcap = base->cap * 2;  in cbb_buffer_add()
108 		if (!base->can_resize)  in cbb_buffer_add()
111 		if (newcap < base->cap || newcap < newlen)  in cbb_buffer_add()
114 		newbuf = recallocarray(base->buf, base->cap, newcap, 1);  in cbb_buffer_add()
118 		base->buf = newbuf;  in cbb_buffer_add()
119 		base->cap = newcap;  in cbb_buffer_add()
123 		*out = base->buf + base->len;  in cbb_buffer_add()
125 	base->len = newlen;  in cbb_buffer_add()
141 	if (!CBB_flush(cbb) || !cbb_buffer_add(cbb->base, &buf, len_len))  in cbb_add_u()
160 	if (cbb->base->can_resize && (out_data == NULL || out_len == NULL))  in CBB_finish()
171 		*out_data = cbb->base->buf;  in CBB_finish()
174 		*out_len = cbb->base->len;  in CBB_finish()
176 	cbb->base->buf = NULL;  in CBB_finish()
183  * length of the underlying base is taken to be the length of the
191 	if (cbb->base == NULL)  in CBB_flush()
200 	    cbb->base->len < child_start)  in CBB_flush()
203 	len = cbb->base->len - child_start;  in CBB_flush()
250 			if (!cbb_buffer_add(cbb->base, NULL, extra_bytes))  in CBB_flush()
253 			memmove(cbb->base->buf + child_start + extra_bytes,  in CBB_flush()
254 			    cbb->base->buf + child_start, len);  in CBB_flush()
256 		cbb->base->buf[cbb->offset++] = initial_length_byte;  in CBB_flush()
261 		cbb->base->buf[cbb->offset + i] = len;  in CBB_flush()
267 	cbb->child->base = NULL;  in CBB_flush()
282 	cbb->base->len = cbb->offset;  in CBB_discard_child()
284 	cbb->child->base = NULL;  in CBB_discard_child()
299 	cbb->offset = cbb->base->len;  in cbb_add_length_prefixed()
300 	if (!cbb_buffer_add(cbb->base, &prefix_bytes, len_len))  in cbb_add_length_prefixed()
305 	out_contents->base = cbb->base;  in cbb_add_length_prefixed()
355 	cbb->offset = cbb->base->len;  in CBB_add_asn1()
360 	out_contents->base = cbb->base;  in CBB_add_asn1()
373 	if (!CBB_flush(cbb) || !cbb_buffer_add(cbb->base, &dest, len))  in CBB_add_bytes()
383 	if (!CBB_flush(cbb) || !cbb_buffer_add(cbb->base, out_data, len))  in CBB_add_space()