/* ** This file is in the public domain, so clarified as of ** Feb 14, 2003 by Arthur David Olson (arthur_david_olson@nih.gov). */ #if defined(LIBC_SCCS) && !defined(lint) && !defined(NOID) static char elsieid[] = "@(#)ialloc.c 8.29"; static char rcsid[] = "$OpenBSD: ialloc.c,v 1.8 2003/03/13 15:47:34 deraadt Exp $"; #endif /* LIBC_SCCS and not lint */ /*LINTLIBRARY*/ #include "private.h" #define nonzero(n) (((n) == 0) ? 1 : (n)) char * imalloc(n) const int n; { return malloc((size_t) nonzero(n)); } char * icalloc(nelem, elsize) int nelem; int elsize; { if (nelem == 0 || elsize == 0) nelem = elsize = 1; return calloc((size_t) nelem, (size_t) elsize); } void * irealloc(pointer, size) void * const pointer; const int size; { void *p; if (pointer == NULL) return imalloc(size); p = realloc((void *) pointer, (size_t) nonzero(size)); if (p == NULL && pointer) free(pointer); return p; } char * icatalloc(old, new) char * const old; const char * const new; { register char * result; register int oldsize, newsize; int size; newsize = (new == NULL) ? 0 : strlen(new); if (old == NULL) oldsize = 0; else if (newsize == 0) return old; else oldsize = strlen(old); size = oldsize + newsize + 1; if ((result = irealloc(old, size)) != NULL) if (new != NULL) (void) strlcpy(result + oldsize, new, newsize + 1); else free(old); return result; } char * icpyalloc(string) const char * const string; { return icatalloc((char *) NULL, string); } void ifree(p) char * const p; { if (p != NULL) (void) free(p); } void icfree(p) char * const p; { if (p != NULL) (void) free(p); }