1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
102 	size_t len;  in savestr()  local
104 	len = strlen(s);  in savestr()
105 	p = ckmalloc(len + 1);  in savestr()
106 	memcpy(p, s, len + 1);  in savestr()
116  * The size 496 was chosen because with 16-byte alignment the total size
148 	sp->prev = stackp;  in stnewblock()
150 	stacknleft = allocsize - (stacknxt - (char*)sp);  in stnewblock()
167 	stacknleft -= nbytes;  in stalloc()
179 	stacknleft += stacknxt - (char *)p;  in stunalloc()
188 	size_t len;  in stsavestr()  local
190 	len = strlen(s);  in stsavestr()
191 	p = stalloc(len + 1);  in stsavestr()
192 	memcpy(p, s, len + 1);  in stsavestr()
200 	mark->stackp = stackp;  in setstackmark()
201 	mark->stacknxt = stacknxt;  in setstackmark()
202 	mark->stacknleft = stacknleft;  in setstackmark()
215 	while (stackp != mark->stackp) {  in popstackmark()
217 		stackp = sp->prev;  in popstackmark()
220 	stacknxt = mark->stacknxt;  in popstackmark()
221 	stacknleft = mark->stacknleft;  in popstackmark()
241 growstackblock(int min)  in growstackblock()  argument
250 	if (min < stacknleft)  in growstackblock()
251 		min = stacknleft;  in growstackblock()
252 	if ((unsigned int)min >=  in growstackblock()
253 	    INT_MAX / 2 - ALIGN(sizeof(struct stack_block)))  in growstackblock()
255 	min += stacknleft;  in growstackblock()
256 	min += ALIGN(sizeof(struct stack_block));  in growstackblock()
258 	while (newlen < min)  in growstackblock()
266 		stackp = oldstackp->prev;  in growstackblock()
268 		sp->prev = stackp;  in growstackblock()
271 		stacknleft = newlen - (stacknxt - (char*)sp);  in growstackblock()
275 		newlen -= ALIGN(sizeof(struct stack_block));  in growstackblock()
304 growstrstackblock(int n, int min)  in growstrstackblock()  argument
306 	growstackblock(min);  in growstrstackblock()
313 	int len;  in growstackstr()  local
315 	len = stackblocksize();  in growstackstr()
316 	return (growstrstackblock(len, 0));  in growstackstr()
325 makestrspace(int min, char *p)  in makestrspace()  argument
327 	int len;  in makestrspace()  local
329 	len = p - stackblock();  in makestrspace()
330 	return (growstrstackblock(len, min));  in makestrspace()
335 stputbin(const char *data, size_t len, char *p)  in stputbin()  argument
337 	CHECKSTRSPACE(len, p);  in stputbin()
338 	memcpy(p, data, len);  in stputbin()
339 	return (p + len);  in stputbin()