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- /*-
- * Copyright (c) 1991 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 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 5.1 (Berkeley) 3/7/91
- */
-
- struct stackmark {
- struct stack_block *stackp;
- char *stacknxt;
- int stacknleft;
- };
-
-
- extern char *stacknxt;
- extern int stacknleft;
- extern int sstrnleft;
- extern int herefd;
-
- #ifdef __STDC__
- pointer ckmalloc(int);
- pointer ckrealloc(pointer, int);
- void free(pointer); /* defined in C library */
- char *savestr(char *);
- pointer stalloc(int);
- void stunalloc(pointer);
- void setstackmark(struct stackmark *);
- void popstackmark(struct stackmark *);
- void growstackblock(void);
- void grabstackblock(int);
- char *growstackstr(void);
- char *makestrspace(void);
- void ungrabstackstr(char *, char *);
- #else
- pointer ckmalloc();
- pointer ckrealloc();
- void free(); /* defined in C library */
- char *savestr();
- pointer stalloc();
- void stunalloc();
- void setstackmark();
- void popstackmark();
- void growstackblock();
- void grabstackblock();
- char *growstackstr();
- char *makestrspace();
- void ungrabstackstr();
- #endif
-
-
-
- #define stackblock() stacknxt
- #define stackblocksize() stacknleft
- #define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
- #define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
- #define CHECKSTRSPACE(n, p) if (sstrnleft < n) p = makestrspace(); else
- #define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
- #define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
- #define STUNPUTC(p) (++sstrnleft, --p)
- #define STTOPC(p) p[-1]
- #define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
- #define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)
-
- #define ckfree(p) free((pointer)(p))
-