1*55495Sbostic /*- 2*55495Sbostic * Copyright (c) 1991 The Regents of the University of California. 3*55495Sbostic * All rights reserved. 4*55495Sbostic * 5*55495Sbostic * Redistribution and use in source and binary forms, with or without 6*55495Sbostic * modification, are permitted provided that the following conditions 7*55495Sbostic * are met: 8*55495Sbostic * 1. Redistributions of source code must retain the above copyright 9*55495Sbostic * notice, this list of conditions and the following disclaimer. 10*55495Sbostic * 2. Redistributions in binary form must reproduce the above copyright 11*55495Sbostic * notice, this list of conditions and the following disclaimer in the 12*55495Sbostic * documentation and/or other materials provided with the distribution. 13*55495Sbostic * 3. All advertising materials mentioning features or use of this software 14*55495Sbostic * must display the following acknowledgement: 15*55495Sbostic * This product includes software developed by the University of 16*55495Sbostic * California, Berkeley and its contributors. 17*55495Sbostic * 4. Neither the name of the University nor the names of its contributors 18*55495Sbostic * may be used to endorse or promote products derived from this software 19*55495Sbostic * without specific prior written permission. 20*55495Sbostic * 21*55495Sbostic * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22*55495Sbostic * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23*55495Sbostic * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24*55495Sbostic * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25*55495Sbostic * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26*55495Sbostic * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27*55495Sbostic * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28*55495Sbostic * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29*55495Sbostic * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30*55495Sbostic * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31*55495Sbostic * SUCH DAMAGE. 32*55495Sbostic */ 33*55495Sbostic 34*55495Sbostic #ifndef lint 35*55495Sbostic static char sccsid[] = "@(#)misc.c 5.1 (Berkeley) 9/19/91"; 36*55495Sbostic #endif /* not lint */ 37*55495Sbostic 38*55495Sbostic #include <sys/types.h> 39*55495Sbostic #include <unistd.h> 40*55495Sbostic #include <errno.h> 41*55495Sbostic #include <stdlib.h> 42*55495Sbostic #include <stdio.h> 43*55495Sbostic #include <string.h> 44*55495Sbostic #include "extern.h" 45*55495Sbostic 46*55495Sbostic void 47*55495Sbostic get(fd, off, p, len) 48*55495Sbostic int fd; 49*55495Sbostic off_t off; 50*55495Sbostic void *p; 51*55495Sbostic size_t len; 52*55495Sbostic { 53*55495Sbostic int rbytes; 54*55495Sbostic 55*55495Sbostic if (lseek(fd, off, SEEK_SET) < 0) 56*55495Sbostic err("%s: %s", special, strerror(errno)); 57*55495Sbostic if ((rbytes = read(fd, p, len)) < 0) 58*55495Sbostic err("%s: %s", special, strerror(errno)); 59*55495Sbostic if (rbytes != len) 60*55495Sbostic err("%s: short read (%d, not %d)", special, rbytes, len); 61*55495Sbostic } 62*55495Sbostic 63*55495Sbostic #if __STDC__ 64*55495Sbostic #include <stdarg.h> 65*55495Sbostic #else 66*55495Sbostic #include <varargs.h> 67*55495Sbostic #endif 68*55495Sbostic 69*55495Sbostic void 70*55495Sbostic #if __STDC__ 71*55495Sbostic err(const char *fmt, ...) 72*55495Sbostic #else 73*55495Sbostic err(fmt, va_alist) 74*55495Sbostic char *fmt; 75*55495Sbostic va_dcl 76*55495Sbostic #endif 77*55495Sbostic { 78*55495Sbostic va_list ap; 79*55495Sbostic #if __STDC__ 80*55495Sbostic va_start(ap, fmt); 81*55495Sbostic #else 82*55495Sbostic va_start(ap); 83*55495Sbostic #endif 84*55495Sbostic (void)fprintf(stderr, "dumplfs: "); 85*55495Sbostic (void)vfprintf(stderr, fmt, ap); 86*55495Sbostic va_end(ap); 87*55495Sbostic (void)fprintf(stderr, "\n"); 88*55495Sbostic exit(1); 89*55495Sbostic /* NOTREACHED */ 90*55495Sbostic } 91