-/*
- * Copyright (c) 1995, Index Data
- * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: dmalloc.c,v $
- * Revision 1.8 1995-09-29 17:12:33 quinn
- * Smallish
- *
- * Revision 1.7 1995/09/29 17:01:50 quinn
- * More Windows work
- *
- * Revision 1.6 1995/09/27 15:03:02 quinn
- * Modified function heads & prototypes.
- *
- * Revision 1.5 1995/05/16 08:51:10 quinn
- * License, documentation, and memory fixes
- *
- * Revision 1.4 1995/05/15 13:25:13 quinn
- * Fixed memory bug.
- *
- * Revision 1.3 1995/05/15 11:56:55 quinn
- * Debuggng & adjustments.
- *
- * Revision 1.2 1995/04/10 10:23:50 quinn
- * Fixes.
- *
- * Revision 1.1 1995/03/27 08:35:17 quinn
- * Created util library
- * Added memory debugging module. Imported options-manager
- *
- *
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <yconfig.h>
-
-static const unsigned char head[] = {44, 33, 22, 11};
-static const unsigned char tail[] = {11, 22, 33, 44};
-static const unsigned char freed[] = {99, 99, 99, 99};
-
-void *d_malloc(char *file, int line, int nbytes)
-{
- char *res;
- int long len;
-
- if (!(res = malloc(nbytes + 3 * sizeof(long))))
- return 0;
- fprintf(stderr, "---d_malloc, '%s':%d, %d->%p\n",
- file, line, nbytes, res + 2 * sizeof(long));
- len = nbytes;
- memcpy(res, &head, sizeof(long));
- memcpy(res + sizeof(long), &len, sizeof(long));
- res += 2 * sizeof(long);
- memcpy(res + nbytes, &tail, sizeof(long));
- return res;
-}
-
-void d_free(char *file, int line, char *ptr)
-{
- long len;
-
- if (memcmp(&head, ptr - 2 * sizeof(long), sizeof(long)))
- abort();
- memcpy(ptr - 2 * sizeof(long), &freed, sizeof(long));
- memcpy(&len, ptr - sizeof(long), sizeof(long));
- if (memcmp(ptr + len, &tail, sizeof(long)))
- abort();
- fprintf(stderr, "---d_free, '%s':%d, %p (%d)\n",
- file, line, ptr, len);
- free(ptr - 2 * sizeof(long));
- return;
-}
-
-void *d_realloc(char *file, int line, char *ptr, int nbytes)
-{
- long len, nlen = nbytes;
- char *p = ptr;
- char *r;
-
- if (memcmp(&head, ptr - 2 * sizeof(long), sizeof(long)))
- abort();
- memcpy(&len, ptr - sizeof(long), sizeof(long));
- if (memcmp(ptr + len, &tail, sizeof(long)))
- abort();
- if (!(r = realloc(ptr - 2 * sizeof(long), nbytes + 3 * sizeof(long))))
- return 0;
- fprintf(stderr, "---d_realloc, '%s':%d, %d->%d, %p->%p\n",
- file, line, len, nbytes, p, r + 2 * sizeof(long));
- memcpy(r, &head, sizeof(long));
- memcpy(r + sizeof(long), &nlen, sizeof(long));
- r += 2 * sizeof(long);
- memcpy(r + nbytes, &tail, sizeof(long));
- return r;
-}