Annotation of src/usr.bin/systat/disks.c, Revision 1.1
1.1 ! deraadt 1: /* $NetBSD: disks.c,v 1.2 1995/01/20 08:51:53 jtc Exp $ */
! 2:
! 3: /*-
! 4: * Copyright (c) 1980, 1992, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: #if 0
! 38: static char sccsid[] = "@(#)disks.c 8.1 (Berkeley) 6/6/93";
! 39: #endif
! 40: static char rcsid[] = "$NetBSD: disks.c,v 1.2 1995/01/20 08:51:53 jtc Exp $";
! 41: #endif /* not lint */
! 42:
! 43: #include <sys/types.h>
! 44: #include <sys/buf.h>
! 45:
! 46: #include <nlist.h>
! 47: #include <ctype.h>
! 48: #include <paths.h>
! 49: #include <string.h>
! 50: #include <stdlib.h>
! 51: #include "systat.h"
! 52: #include "extern.h"
! 53:
! 54: static void dkselect __P((char *, int, int []));
! 55: static int read_names __P((void));
! 56:
! 57: static struct nlist namelist[] = {
! 58: #define X_DK_NDRIVE 0
! 59: { "_dk_ndrive" },
! 60: #define X_DK_WPMS 1
! 61: { "_dk_wpms" },
! 62: #ifdef vax
! 63: #define X_MBDINIT (X_DK_WPMS+1)
! 64: { "_mbdinit" },
! 65: #define X_UBDINIT (X_DK_WPMS+2)
! 66: { "_ubdinit" },
! 67: #endif
! 68: #ifdef sun
! 69: #define X_MBDINIT (X_DK_WPMS+1)
! 70: { "_mbdinit" },
! 71: #endif
! 72: #ifdef tahoe
! 73: #define X_VBDINIT (X_DK_WPMS+1)
! 74: { "_vbdinit" },
! 75: #endif
! 76: #if defined(hp300) || defined(luna68k)
! 77: #define X_HPDINIT (X_DK_WPMS+1)
! 78: { "_hp_dinit" },
! 79: #endif
! 80: #ifdef mips
! 81: #define X_SCSI_DINIT (X_DK_WPMS+1)
! 82: { "_scsi_dinit" },
! 83: #endif
! 84: { "" },
! 85: };
! 86:
! 87: float *dk_mspw;
! 88: int dk_ndrive, *dk_select;
! 89: char **dr_name;
! 90:
! 91: #include "names.c" /* XXX */
! 92:
! 93: int
! 94: dkinit()
! 95: {
! 96: register int i;
! 97: register char *cp;
! 98: static int once = 0;
! 99: static char buf[1024];
! 100:
! 101: if (once)
! 102: return(1);
! 103:
! 104: if (kvm_nlist(kd, namelist)) {
! 105: nlisterr(namelist);
! 106: return(0);
! 107: }
! 108: if (namelist[X_DK_NDRIVE].n_value == 0) {
! 109: error("dk_ndrive undefined in kernel");
! 110: return(0);
! 111: }
! 112: NREAD(X_DK_NDRIVE, &dk_ndrive, LONG);
! 113: if (dk_ndrive <= 0) {
! 114: error("dk_ndrive=%d according to %s", dk_ndrive, _PATH_UNIX);
! 115: return(0);
! 116: }
! 117: dk_mspw = (float *)calloc(dk_ndrive, sizeof (float));
! 118: {
! 119: long *wpms = (long *)calloc(dk_ndrive, sizeof(long));
! 120: KREAD(NPTR(X_DK_WPMS), wpms, dk_ndrive * sizeof (long));
! 121: for (i = 0; i < dk_ndrive; i++)
! 122: *(dk_mspw + i) = (*(wpms + i) == 0)? 0.0:
! 123: (float) 1.0 / *(wpms + i);
! 124: free(wpms);
! 125: }
! 126: dr_name = (char **)calloc(dk_ndrive, sizeof (char *));
! 127: dk_select = (int *)calloc(dk_ndrive, sizeof (int));
! 128: for (cp = buf, i = 0; i < dk_ndrive; i++) {
! 129: dr_name[i] = cp;
! 130: sprintf(dr_name[i], "dk%d", i);
! 131: cp += strlen(dr_name[i]) + 1;
! 132: if (dk_mspw[i] != 0.0)
! 133: dk_select[i] = 1;
! 134: }
! 135: if (!read_names()) {
! 136: free(dr_name);
! 137: free(dk_select);
! 138: free(dk_mspw);
! 139: return(0);
! 140: }
! 141: once = 1;
! 142: return(1);
! 143: }
! 144:
! 145: int
! 146: dkcmd(cmd, args)
! 147: char *cmd, *args;
! 148: {
! 149: if (prefix(cmd, "display") || prefix(cmd, "add")) {
! 150: dkselect(args, 1, dk_select);
! 151: return (1);
! 152: }
! 153: if (prefix(cmd, "ignore") || prefix(cmd, "delete")) {
! 154: dkselect(args, 0, dk_select);
! 155: return (1);
! 156: }
! 157: if (prefix(cmd, "drives")) {
! 158: register int i;
! 159:
! 160: move(CMDLINE, 0); clrtoeol();
! 161: for (i = 0; i < dk_ndrive; i++)
! 162: if (dk_mspw[i] != 0.0)
! 163: printw("%s ", dr_name[i]);
! 164: return (1);
! 165: }
! 166: return (0);
! 167: }
! 168:
! 169: static void
! 170: dkselect(args, truefalse, selections)
! 171: char *args;
! 172: int truefalse, selections[];
! 173: {
! 174: register char *cp;
! 175: register int i;
! 176: char *index();
! 177:
! 178: cp = index(args, '\n');
! 179: if (cp)
! 180: *cp = '\0';
! 181: for (;;) {
! 182: for (cp = args; *cp && isspace(*cp); cp++)
! 183: ;
! 184: args = cp;
! 185: for (; *cp && !isspace(*cp); cp++)
! 186: ;
! 187: if (*cp)
! 188: *cp++ = '\0';
! 189: if (cp - args == 0)
! 190: break;
! 191: for (i = 0; i < dk_ndrive; i++)
! 192: if (strcmp(args, dr_name[i]) == 0) {
! 193: if (dk_mspw[i] != 0.0)
! 194: selections[i] = truefalse;
! 195: else
! 196: error("%s: drive not configured",
! 197: dr_name[i]);
! 198: break;
! 199: }
! 200: if (i >= dk_ndrive)
! 201: error("%s: unknown drive", args);
! 202: args = cp;
! 203: }
! 204: }
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