1 /* $NetBSD: swaplist.c,v 1.13 2005/02/09 05:51:38 xtraeme Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Matthew R. Green 5 * 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 #include <sys/cdefs.h> 31 32 #ifndef lint 33 __RCSID("$NetBSD: swaplist.c,v 1.13 2005/02/09 05:51:38 xtraeme Exp $"); 34 #endif 35 36 37 #include <sys/param.h> 38 #include <sys/stat.h> 39 #include <sys/swap.h> 40 41 #include <unistd.h> 42 #include <err.h> 43 #include <errno.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <inttypes.h> 48 #include <util.h> 49 50 #define dbtoqb(b) dbtob((int64_t)(b)) 51 52 /* 53 * NOTE: This file is separate from swapctl.c so that pstat can grab it. 54 */ 55 56 #include "swapctl.h" 57 58 void 59 list_swap(int pri, int kflag, int pflag, int tflag, int dolong, int hflag) 60 { 61 struct swapent *sep, *fsep; 62 long blocksize; 63 char szbuf[5], usbuf[5], avbuf[5]; /* size, used, avail */ 64 const char *header, *suff; 65 size_t l; 66 int hlen, totalsize, size, totalinuse, inuse, ncounted, pathmax; 67 int rnswap, nswap = swapctl(SWAP_NSWAP, 0, 0), i; 68 69 if (nswap < 1) { 70 puts("no swap devices configured"); 71 exit(0); 72 } 73 74 fsep = sep = (struct swapent *)malloc(nswap * sizeof(*sep)); 75 if (sep == NULL) 76 err(1, "malloc"); 77 rnswap = swapctl(SWAP_STATS, (void *)sep, nswap); 78 if (rnswap < 0) 79 err(1, "SWAP_STATS"); 80 if (nswap != rnswap) 81 warnx("SWAP_STATS different to SWAP_NSWAP (%d != %d)", 82 rnswap, nswap); 83 84 pathmax = 11; 85 switch(kflag) { 86 case 1: 87 header = "1K-blocks"; 88 blocksize = 1024; 89 suff = "KBytes"; 90 break; 91 case 2: 92 suff = "MBytes"; 93 header = "1M-blocks"; 94 blocksize = 1024 * 1024; 95 break; 96 case 3: 97 header = "1G-blocks"; 98 blocksize = 1024 * 1024 * 1024; 99 suff = "GBytes"; 100 break; 101 default: 102 suff = "blocks"; 103 if (!hflag) { 104 header = getbsize(&hlen, &blocksize); 105 } else { 106 header = "Size"; 107 blocksize = 1; suff = ""; /* unused */ 108 } 109 break; 110 } 111 if (hflag || kflag) 112 hlen = strlen(header); 113 114 if (dolong && tflag == 0) { 115 for (i = rnswap; i-- > 0; sep++) 116 if (pathmax < (l = strlen(sep->se_path))) 117 pathmax = l; 118 sep = fsep; 119 (void)printf("%-*s %*s %8s %8s %8s %s\n", 120 pathmax, "Device", hlen, header, 121 "Used", "Avail", "Capacity", "Priority"); 122 } 123 totalsize = totalinuse = ncounted = 0; 124 for (; rnswap-- > 0; sep++) { 125 if (pflag && sep->se_priority != pri) 126 continue; 127 ncounted++; 128 size = sep->se_nblks; 129 inuse = sep->se_inuse; 130 totalsize += size; 131 totalinuse += inuse; 132 133 if (dolong && tflag == 0) { 134 if (hflag == 0) { 135 (void)printf("%-*s %*ld ", pathmax, sep->se_path, hlen, 136 (long)(dbtoqb(size) / blocksize)); 137 138 (void)printf("%8ld %8ld %5.0f%% %d\n", 139 (long)(dbtoqb(inuse) / blocksize), 140 (long)(dbtoqb(size - inuse) / blocksize), 141 (double)inuse / (double)size * 100.0, 142 sep->se_priority); 143 } else { 144 if ((humanize_number(szbuf, sizeof(szbuf), (dbtoqb(size)), 145 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 146 err(1, "humanize_number"); 147 if ((humanize_number(usbuf, sizeof(usbuf), (dbtoqb(inuse)), 148 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 149 err(1, "humanize_number"); 150 if ((humanize_number(avbuf, sizeof(avbuf), (dbtoqb(size-inuse)), 151 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 152 err(1, "humanize_number"); 153 (void)printf("%-*s %*s ", pathmax, sep->se_path, hlen, szbuf); 154 155 (void)printf("%8s %8s %5.0f%% %d\n", 156 usbuf, avbuf, 157 (double)inuse / (double)size * 100.0, 158 sep->se_priority); 159 } 160 } 161 } 162 if (tflag) { 163 if (hflag) { 164 if ((humanize_number(usbuf, sizeof(usbuf), (dbtoqb(totalinuse)), 165 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 166 err(1, "humanize_number"); 167 if ((humanize_number(szbuf, sizeof(szbuf), (dbtoqb(totalsize)), 168 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 169 err(1, "humanize_number"); 170 (void)printf("%s/%s swap space\n", usbuf, szbuf); 171 } else { 172 (void)printf("%ld/%ld %s swap space\n", 173 (long)(dbtoqb(totalinuse) / blocksize), 174 (long)(dbtoqb(totalsize) / blocksize), 175 suff); 176 } 177 } 178 else if (dolong == 0) { 179 if (hflag) { 180 if ((humanize_number(szbuf, sizeof(szbuf), (dbtoqb(totalsize)), 181 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 182 err(1, "humanize_number"); 183 if ((humanize_number(usbuf, sizeof(usbuf), (dbtoqb(totalinuse)), 184 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 185 err(1, "humanize_number"); 186 if ((humanize_number(avbuf, sizeof(avbuf), (dbtoqb(totalsize-totalinuse)), 187 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 188 err(1, "humanize_number"); 189 (void)printf("total: %s allocated = %s used, %s available.\n", 190 szbuf, usbuf, avbuf); 191 } else { 192 printf("total: %ld %s allocated = %ld %s used, " 193 "%ld %s available\n", 194 (long)(dbtoqb(totalsize) / blocksize), suff, 195 (long)(dbtoqb(totalinuse) / blocksize), suff, 196 (long)(dbtoqb(totalsize - totalinuse) / blocksize), suff); 197 } 198 } else if (ncounted > 1) { 199 if (hflag) { 200 if ((humanize_number(szbuf, sizeof(szbuf), (dbtoqb(totalsize)), 201 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 202 err(1, "humanize_number"); 203 if ((humanize_number(usbuf, sizeof(usbuf), (dbtoqb(totalinuse)), 204 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 205 err(1, "humanize_number"); 206 if ((humanize_number(avbuf, sizeof(avbuf), (dbtoqb(totalsize-totalinuse)), 207 "", HN_AUTOSCALE, (HN_DECIMAL | HN_B | HN_NOSPACE))) == -1) 208 err(1, "humanize_number"); 209 (void)printf("%-*s %*s %8s %8s %5.0f%%\n", pathmax, "Total", 210 hlen, szbuf, usbuf, avbuf, 211 (double)(totalinuse) / (double)totalsize * 100.0); 212 } else { 213 (void)printf("%-*s %*ld %8ld %8ld %5.0f%%\n", pathmax, "Total", 214 hlen, 215 (long)(dbtoqb(totalsize) / blocksize), 216 (long)(dbtoqb(totalinuse) / blocksize), 217 (long)(dbtoqb(totalsize - totalinuse) / blocksize), 218 (double)(totalinuse) / (double)totalsize * 100.0); 219 } 220 } 221 if (fsep) 222 (void)free(fsep); 223 } 224