disks.c revision 1.2
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 } 205
Indexes created Mon Sep 29 21:09:56 GMT 2025