/* $OpenBSD: error.c,v 1.1 1999/12/09 18:20:06 espie Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1993 * The Regents of the University of California. All rights reserved. * Copyright (c) 1989 by Berkeley Softworks * All rights reserved. * * This code is derived from software contributed to Berkeley by * Adam de Boor. * * 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. */ #include #include #include #include #include #include #include #include "error.h" static void enomem __P((size_t)); /* * emalloc -- * malloc, but die on error. */ void * emalloc(len) size_t len; { void *p; if ((p = malloc(len)) == NULL) enomem(len); return p; } /* * estrdup -- * strdup, but die on error. */ char * estrdup(str) const char *str; { char *p; size_t size; size = strlen(str) + 1; p = emalloc(size); memcpy(p, str, size); return p; } /* * erealloc -- * realloc, but die on error. */ void * erealloc(ptr, size) void *ptr; size_t size; { if ((ptr = realloc(ptr, size)) == NULL) enomem(size); return ptr; } void * ecalloc(s1, s2) size_t s1; size_t s2; { void *p; if ((p = calloc(s1, s2)) == NULL) enomem(s1 * s2); return p; } /* * enomem -- * die when out of memory. */ void enomem(size) size_t size; { int myerr = errno; fprintf(stderr, "make: %s (%d)\n", strerror(myerr), size); exit(2); } /* * enunlink -- * Remove a file carefully, avoiding directories. */ int eunlink(file) const char *file; { struct stat st; if (lstat(file, &st) == -1) return -1; if (S_ISDIR(st.st_mode)) { errno = EISDIR; return -1; } return unlink(file); }