/* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * 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[] = "@(#)util.c 8.1 (Berkeley) 6/6/93"; #endif /* not lint */ #include <sys/types.h> #include <errno.h> #include <kvm.h> #include <nlist.h> #include <stdio.h> #include <stdlib.h> #if __STDC__ #include <stdarg.h> #else #include <varargs.h> #endif #include "extern.h" /* * kvm_nlist, but with error exits. */ void knlist(nl) struct nlist *nl; { int nmissing; if ((nmissing = kvm_nlist(kd, nl)) == 0) return; if (nmissing < 0) errexit("kvm_nlist: %s\n", kvm_geterr(kd)); (void)fprintf(stderr, "vmstat: undefined symbols:"); for (; nl->n_name && *nl->n_name; nl++) if (nl->n_type == 0) printf(" %s", nl->n_name); (void)fputc('\n', stderr); exit(1); } /* * kread reads something from the kernel, given its address. * It aborts on failure. */ void kread(addr, buf, size, err) u_long addr; void *buf; size_t size; char *err; { if (kvm_read(kd, addr, buf, size) != size) errexit("kvm_read(%s): %s\n", err, kvm_geterr(kd)); } void #if __STDC__ errexit(const char *fmt, ...) #else errexit(fmt, va_alist) char *fmt; va_dcl #endif { va_list ap; #if __STDC__ va_start(ap, fmt); #else va_start(ap); #endif (void)fprintf(stderr, "vmstat: "); (void)vfprintf(stderr, fmt, ap); va_end(ap); exit(1); /* NOTREACHED */ }