1 /* $NetBSD: df.c,v 1.4 2005/12/24 21:14:50 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 2005 7 * Hubert Feyrer <hubert@feyrer.de> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 #ifndef lint 36 __RCSID("$NetBSD: df.c,v 1.4 2005/12/24 21:14:50 matt Exp $"); 37 #endif /* not lint */ 38 39 #include <sys/param.h> 40 #include <sys/stat.h> 41 #include <sys/mount.h> 42 43 #include <curses.h> 44 #include <math.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <util.h> 48 49 #include "systat.h" 50 #include "extern.h" 51 52 static int nfss; 53 static struct statvfs *fss; 54 static const char *nodisplay[] = {"procfs", "kernfs", "ptyfs", "null", NULL }; 55 static int displayall=0; 56 57 58 WINDOW * 59 opendf(void) 60 { 61 return (subwin(stdscr, -1, 0, 5, 0)); 62 } 63 64 void 65 closedf(WINDOW *w) 66 { 67 if (w == NULL) 68 return; 69 wclear(w); 70 wrefresh(w); 71 delwin(w); 72 } 73 74 75 void 76 showdf(void) 77 { 78 int i, j, skip; 79 char s[MNAMELEN]; 80 char s2[MNAMELEN]; 81 float pct; 82 int64_t used, bsize, bavail, availblks; 83 int y; 84 85 y=2; /* at what line to start displaying */ 86 for (i=0; i<nfss; i++) { 87 skip = 0; 88 for(j=0; nodisplay[j] != NULL; j++) { 89 if (strcmp(nodisplay[j], 90 fss[i].f_fstypename) == 0) { 91 skip=1; 92 break; 93 } 94 } 95 96 if (displayall || !skip) { 97 wmove(wnd, y, 0); 98 wclrtoeol(wnd); 99 100 snprintf(s, sizeof(s), "%s", fss[i].f_mntonname); 101 mvwaddstr(wnd, y, 0, s); 102 103 used = fss[i].f_blocks - fss[i].f_bfree; 104 bavail = fss[i].f_bavail; 105 availblks = bavail + used; 106 bsize = fss[i].f_frsize; 107 108 if (availblks == 0) { 109 pct = 1.0; /* full pseudo-disk */ 110 } else { 111 pct = (1.0 * used) / availblks; 112 } 113 114 #define FREELEN 7 115 humanize_number(s2, FREELEN, bavail*bsize, 116 " |", HN_AUTOSCALE, 117 HN_B | HN_NOSPACE | HN_DECIMAL); 118 snprintf(s, sizeof(s), "%*s", FREELEN, s2); 119 mvwaddstr(wnd, y, 25-FREELEN, s); 120 #undef FREELEN 121 122 mvwhline(wnd, y, 25, 'X', (int)(51*pct)); 123 124 y++; 125 } 126 } 127 wmove(wnd, y, 0); 128 wclrtobot(wnd); 129 } 130 131 int 132 initdf(void) 133 { 134 nfss = getmntinfo(&fss, MNT_NOWAIT); 135 if (nfss == 0) { 136 error("init: getmntinfo error"); 137 return(0); 138 } 139 140 mvwaddstr(wnd, 0, 0, "Disk free %age:"); 141 return(1); 142 } 143 144 void 145 fetchdf(void) 146 { 147 nfss = getmntinfo(&fss, MNT_NOWAIT); 148 if (nfss == 0) { 149 error("fetch: getmntinfo error"); 150 return; 151 } 152 } 153 154 void 155 labeldf(void) 156 { 157 wmove(wnd, 0, 0); 158 wclrtoeol(wnd); 159 mvwaddstr(wnd, 0, 0, "Filesystem"); 160 mvwaddstr(wnd, 0, 18, "Avail"); 161 mvwaddstr(wnd, 0, 26, "Capacity"); 162 mvwaddstr(wnd, 1, 25, "/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100%"); 163 } 164 165 void 166 df_all(char *args) 167 { 168 displayall=1; 169 } 170 171 void 172 df_some(char *args) 173 { 174 displayall=0; 175 } 176 177