/*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Kenneth Almquist. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)memalloc.h 8.2 (Berkeley) 5/4/95 * $FreeBSD$ */ #include <string.h> struct stackmark { struct stack_block *stackp; char *stacknxt; int stacknleft; }; extern char *stacknxt; extern int stacknleft; extern char *sstrend; pointer ckmalloc(size_t); pointer ckrealloc(pointer, int); void ckfree(pointer); char *savestr(const char *); pointer stalloc(int); void stunalloc(pointer); char *stsavestr(const char *); void setstackmark(struct stackmark *); void popstackmark(struct stackmark *); char *growstackstr(void); char *makestrspace(int, char *); char *stputbin(const char *data, size_t len, char *p); char *stputs(const char *data, char *p); #define stackblock() stacknxt #define stackblocksize() stacknleft #define grabstackblock(n) stalloc(n) #define STARTSTACKSTR(p) p = stackblock() #define STPUTC(c, p) do { if (p == sstrend) p = growstackstr(); *p++ = (c); } while(0) #define CHECKSTRSPACE(n, p) { if ((size_t)(sstrend - p) < n) p = makestrspace(n, p); } #define USTPUTC(c, p) (*p++ = (c)) /* * STACKSTRNUL's use is where we want to be able to turn a stack * (non-sentinel, character counting string) into a C string, * and later pretend the NUL is not there. * Note: Because of STACKSTRNUL's semantics, STACKSTRNUL cannot be used * on a stack that will grabstackstr()ed. */ #define STACKSTRNUL(p) (p == sstrend ? (p = growstackstr(), *p = '\0') : (*p = '\0')) #define STUNPUTC(p) (--p) #define STTOPC(p) p[-1] #define STADJUST(amount, p) (p += (amount)) #define grabstackstr(p) stalloc((char *)p - stackblock()) #define ungrabstackstr(s, p) stunalloc((s)) #define STPUTBIN(s, len, p) p = stputbin((s), (len), p) #define STPUTS(s, p) p = stputs((s), p)