155495Sbostic /*- 255495Sbostic * Copyright (c) 1991 The Regents of the University of California. 355495Sbostic * All rights reserved. 455495Sbostic * 555495Sbostic * Redistribution and use in source and binary forms, with or without 655495Sbostic * modification, are permitted provided that the following conditions 755495Sbostic * are met: 855495Sbostic * 1. Redistributions of source code must retain the above copyright 955495Sbostic * notice, this list of conditions and the following disclaimer. 1055495Sbostic * 2. Redistributions in binary form must reproduce the above copyright 1155495Sbostic * notice, this list of conditions and the following disclaimer in the 1255495Sbostic * documentation and/or other materials provided with the distribution. 1355495Sbostic * 3. All advertising materials mentioning features or use of this software 1455495Sbostic * must display the following acknowledgement: 1555495Sbostic * This product includes software developed by the University of 1655495Sbostic * California, Berkeley and its contributors. 1755495Sbostic * 4. Neither the name of the University nor the names of its contributors 1855495Sbostic * may be used to endorse or promote products derived from this software 1955495Sbostic * without specific prior written permission. 2055495Sbostic * 2155495Sbostic * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2255495Sbostic * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355495Sbostic * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455495Sbostic * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2555495Sbostic * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655495Sbostic * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755495Sbostic * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855495Sbostic * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955495Sbostic * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055495Sbostic * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155495Sbostic * SUCH DAMAGE. 3255495Sbostic */ 3355495Sbostic 3455495Sbostic #ifndef lint 3555495Sbostic static char sccsid[] = "@(#)misc.c 5.1 (Berkeley) 9/19/91"; 3655495Sbostic #endif /* not lint */ 3755495Sbostic 3855495Sbostic #include <sys/types.h> 3955495Sbostic #include <unistd.h> 4055495Sbostic #include <errno.h> 4155495Sbostic #include <stdlib.h> 4255495Sbostic #include <stdio.h> 4355495Sbostic #include <string.h> 44*55858Sbostic extern char *special; 4555495Sbostic #if __STDC__ 4655495Sbostic #include <stdarg.h> 4755495Sbostic #else 4855495Sbostic #include <varargs.h> 4955495Sbostic #endif 5055495Sbostic 5155495Sbostic void 5255495Sbostic #if __STDC__ 53*55858Sbostic err(const int fatal, const char *fmt, ...) 5455495Sbostic #else 5555495Sbostic err(fmt, va_alist) 5655495Sbostic char *fmt; 5755495Sbostic va_dcl 5855495Sbostic #endif 5955495Sbostic { 6055495Sbostic va_list ap; 6155495Sbostic #if __STDC__ 6255495Sbostic va_start(ap, fmt); 6355495Sbostic #else 6455495Sbostic va_start(ap); 6555495Sbostic #endif 66*55858Sbostic (void)fprintf(stderr, "%s: ", special); 6755495Sbostic (void)vfprintf(stderr, fmt, ap); 6855495Sbostic va_end(ap); 69*55858Sbostic (void)fprintf(stderr, " %s\n", strerror(errno)); 70*55858Sbostic if (fatal) 71*55858Sbostic exit(1); 7255495Sbostic } 73*55858Sbostic 74*55858Sbostic void 75*55858Sbostic get(fd, off, p, len) 76*55858Sbostic int fd; 77*55858Sbostic off_t off; 78*55858Sbostic void *p; 79*55858Sbostic size_t len; 80*55858Sbostic { 81*55858Sbostic int rbytes; 82*55858Sbostic 83*55858Sbostic if (lseek(fd, off, SEEK_SET) < 0) 84*55858Sbostic err(1, "%s: %s", special, strerror(errno)); 85*55858Sbostic if ((rbytes = read(fd, p, len)) < 0) 86*55858Sbostic err(1, "%s: %s", special, strerror(errno)); 87*55858Sbostic if (rbytes != len) 88*55858Sbostic err(1, "%s: short read (%d, not %d)", special, rbytes, len); 89*55858Sbostic } 90*55858Sbostic 91