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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
- * Arthur David Olson of the National Cancer Institute.
- *
- * 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.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)ialloc.c 5.3 (Berkeley) 4/20/91";
- #endif /* not lint */
-
- #ifdef notdef
- static char elsieid[] = "@(#)ialloc.c 8.18";
- #endif
-
- /*LINTLIBRARY*/
-
- #include <sys/cdefs.h>
- #include <sys/types.h>
- #include <string.h>
- #include <stdlib.h>
-
- #ifdef MAL
- #define NULLMAL(x) ((x) == NULL || (x) == MAL)
- #else /* !defined MAL */
- #define NULLMAL(x) ((x) == NULL)
- #endif /* !defined MAL */
-
- #define nonzero(n) (((n) == 0) ? 1 : (n))
-
- char * icalloc __P((int nelem, int elsize));
- char * icatalloc __P((char * old, const char * new));
- char * icpyalloc __P((const char * string));
- char * imalloc __P((int n));
- char * irealloc __P((char * pointer, int size));
- void ifree __P((char * pointer));
-
- char *
- imalloc(n)
- const int n;
- {
- #ifdef MAL
- register char * result;
-
- result = malloc((size_t) nonzero(n));
- return NULLMAL(result) ? NULL : result;
- #else /* !defined MAL */
- return malloc((size_t) nonzero(n));
- #endif /* !defined MAL */
- }
-
- char *
- icalloc(nelem, elsize)
- int nelem;
- int elsize;
- {
- if (nelem == 0 || elsize == 0)
- nelem = elsize = 1;
- return calloc((size_t) nelem, (size_t) elsize);
- }
-
- char *
- irealloc(pointer, size)
- char * const pointer;
- const int size;
- {
- if (NULLMAL(pointer))
- return imalloc(size);
- return realloc((void *) pointer, (size_t) nonzero(size));
- }
-
- char *
- icatalloc(old, new)
- char * const old;
- const char * const new;
- {
- register char * result;
- register oldsize, newsize;
-
- newsize = NULLMAL(new) ? 0 : strlen(new);
- if (NULLMAL(old))
- oldsize = 0;
- else if (newsize == 0)
- return old;
- else oldsize = strlen(old);
- if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
- if (!NULLMAL(new))
- (void) strcpy(result + oldsize, new);
- return result;
- }
-
- char *
- icpyalloc(string)
- const char * const string;
- {
- return icatalloc((char *) NULL, string);
- }
-
- void
- ifree(p)
- char * const p;
- {
- if (!NULLMAL(p))
- (void) free(p);
- }
-
- void
- icfree(p)
- char * const p;
- {
- if (!NULLMAL(p))
- (void) free(p);
- }
-