1 /* $OpenBSD: swaplist.c,v 1.3 2000/02/26 04:06:23 hugh Exp $ */ 2 /* $NetBSD: swaplist.c,v 1.8 1998/10/08 10:00:31 mrg Exp $ */ 3 4 /* 5 * Copyright (c) 1997 Matthew R. Green 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/stat.h> 34 #include <sys/swap.h> 35 36 #include <unistd.h> 37 #include <err.h> 38 #include <errno.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <inttypes.h> 43 44 #define dbtoqb(b) dbtob((int64_t)(b)) 45 46 /* 47 * NOTE: This file is separate from swapctl.c so that pstat can grab it. 48 */ 49 50 #include "swapctl.h" 51 52 void 53 list_swap(pri, kflag, pflag, tflag, dolong) 54 int pri; 55 int kflag; 56 int pflag; 57 int tflag; 58 int dolong; 59 { 60 struct swapent *sep, *fsep; 61 long blocksize; 62 char *header; 63 size_t l; 64 int hlen, totalsize, size, totalinuse, inuse, ncounted, pathmax; 65 int rnswap, nswap = swapctl(SWAP_NSWAP, 0, 0), i; 66 67 if (nswap < 1) { 68 puts("no swap devices configured"); 69 exit(0); 70 } 71 72 fsep = sep = (struct swapent *)malloc(nswap * sizeof(*sep)); 73 if (sep == NULL) 74 err(1, "malloc"); 75 rnswap = swapctl(SWAP_STATS, (void *)sep, nswap); 76 if (rnswap < 0) 77 err(1, "SWAP_STATS"); 78 if (nswap != rnswap) 79 warnx("SWAP_STATS different to SWAP_NSWAP (%d != %d)", 80 rnswap, nswap); 81 82 pathmax = 11; 83 if (dolong && tflag == 0) { 84 if (kflag) { 85 header = "1K-blocks"; 86 blocksize = 1024; 87 hlen = strlen(header); 88 } else 89 header = getbsize(&hlen, &blocksize); 90 for (i = rnswap; i-- > 0; sep++) 91 if (pathmax < (l = strlen(sep->se_path))) 92 pathmax = l; 93 sep = fsep; 94 (void)printf("%-*s %*s %8s %8s %8s %s\n", 95 pathmax, "Device", hlen, header, 96 "Used", "Avail", "Capacity", "Priority"); 97 } 98 totalsize = totalinuse = ncounted = 0; 99 for (; rnswap-- > 0; sep++) { 100 if (pflag && sep->se_priority != pri) 101 continue; 102 ncounted++; 103 size = sep->se_nblks; 104 inuse = sep->se_inuse; 105 totalsize += size; 106 totalinuse += inuse; 107 108 if (dolong && tflag == 0) { 109 (void)printf("%-*s %*ld ", pathmax, sep->se_path, hlen, 110 (long)(dbtoqb(size) / blocksize)); 111 112 (void)printf("%8ld %8ld %5.0f%% %d\n", 113 (long)(dbtoqb(inuse) / blocksize), 114 (long)(dbtoqb(size - inuse) / blocksize), 115 (double)inuse / (double)size * 100.0, 116 sep->se_priority); 117 } 118 } 119 if (tflag) 120 (void)printf("%dM/%dM swap space\n", 121 (int)(dbtoqb(totalinuse) / (1024 * 1024)), 122 (int)(dbtoqb(totalsize) / (1024 * 1024))); 123 else if (dolong == 0) 124 printf("total: %ldk bytes allocated = %ldk used, " 125 "%ldk available\n", 126 (long)(dbtoqb(totalsize) / 1024), 127 (long)(dbtoqb(totalinuse) / 1024), 128 (long)(dbtoqb(totalsize - totalinuse) / 1024)); 129 else if (ncounted > 1) 130 (void)printf("%-*s %*ld %8ld %8ld %5.0f%%\n", pathmax, "Total", 131 hlen, 132 (long)(dbtoqb(totalsize) / blocksize), 133 (long)(dbtoqb(totalinuse) / blocksize), 134 (long)(dbtoqb(totalsize - totalinuse) / blocksize), 135 (double)(totalinuse) / (double)totalsize * 100.0); 136 if (fsep) 137 (void)free(fsep); 138 } 139