1 /* 2 * Copyright (c) 1983, 1995 Eric P. Allman 3 * Copyright (c) 1988, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * %sccs.include.redist.c% 7 */ 8 9 #ifndef lint 10 static char sccsid[] = "@(#)convtime.c 8.3 (Berkeley) 04/21/95"; 11 #endif /* not lint */ 12 13 # include <ctype.h> 14 # include "useful.h" 15 16 /* 17 ** CONVTIME -- convert time 18 ** 19 ** Takes a time as an ascii string with a trailing character 20 ** giving units: 21 ** s -- seconds 22 ** m -- minutes 23 ** h -- hours 24 ** d -- days (default) 25 ** w -- weeks 26 ** For example, "3d12h" is three and a half days. 27 ** 28 ** Parameters: 29 ** p -- pointer to ascii time. 30 ** units -- default units if none specified. 31 ** 32 ** Returns: 33 ** time in seconds. 34 ** 35 ** Side Effects: 36 ** none. 37 */ 38 39 time_t 40 convtime(p, units) 41 char *p; 42 char units; 43 { 44 register time_t t, r; 45 register char c; 46 47 r = 0; 48 while (*p != '\0') 49 { 50 t = 0; 51 while ((c = *p++) != '\0' && isascii(c) && isdigit(c)) 52 t = t * 10 + (c - '0'); 53 if (c == '\0') 54 { 55 c = units; 56 p--; 57 } 58 else if (strchr("wdhms", c) == NULL) 59 { 60 usrerr("Invalid time unit `%c'", c); 61 c = units; 62 } 63 switch (c) 64 { 65 case 'w': /* weeks */ 66 t *= 7; 67 68 case 'd': /* days */ 69 default: 70 t *= 24; 71 72 case 'h': /* hours */ 73 t *= 60; 74 75 case 'm': /* minutes */ 76 t *= 60; 77 78 case 's': /* seconds */ 79 break; 80 } 81 r += t; 82 } 83 84 return (r); 85 } 86 /* 87 ** PINTVL -- produce printable version of a time interval 88 ** 89 ** Parameters: 90 ** intvl -- the interval to be converted 91 ** brief -- if TRUE, print this in an extremely compact form 92 ** (basically used for logging). 93 ** 94 ** Returns: 95 ** A pointer to a string version of intvl suitable for 96 ** printing or framing. 97 ** 98 ** Side Effects: 99 ** none. 100 ** 101 ** Warning: 102 ** The string returned is in a static buffer. 103 */ 104 105 # define PLURAL(n) ((n) == 1 ? "" : "s") 106 107 char * 108 pintvl(intvl, brief) 109 time_t intvl; 110 bool brief; 111 { 112 static char buf[256]; 113 register char *p; 114 int wk, dy, hr, mi, se; 115 116 if (intvl == 0 && !brief) 117 return ("zero seconds"); 118 119 /* decode the interval into weeks, days, hours, minutes, seconds */ 120 se = intvl % 60; 121 intvl /= 60; 122 mi = intvl % 60; 123 intvl /= 60; 124 hr = intvl % 24; 125 intvl /= 24; 126 if (brief) 127 dy = intvl; 128 else 129 { 130 dy = intvl % 7; 131 intvl /= 7; 132 wk = intvl; 133 } 134 135 /* now turn it into a sexy form */ 136 p = buf; 137 if (brief) 138 { 139 if (dy > 0) 140 { 141 (void) sprintf(p, "%d+", dy); 142 p += strlen(p); 143 } 144 (void) sprintf(p, "%02d:%02d:%02d", hr, mi, se); 145 return (buf); 146 } 147 148 /* use the verbose form */ 149 if (wk > 0) 150 { 151 (void) sprintf(p, ", %d week%s", wk, PLURAL(wk)); 152 p += strlen(p); 153 } 154 if (dy > 0) 155 { 156 (void) sprintf(p, ", %d day%s", dy, PLURAL(dy)); 157 p += strlen(p); 158 } 159 if (hr > 0) 160 { 161 (void) sprintf(p, ", %d hour%s", hr, PLURAL(hr)); 162 p += strlen(p); 163 } 164 if (mi > 0) 165 { 166 (void) sprintf(p, ", %d minute%s", mi, PLURAL(mi)); 167 p += strlen(p); 168 } 169 if (se > 0) 170 { 171 (void) sprintf(p, ", %d second%s", se, PLURAL(se)); 172 p += strlen(p); 173 } 174 175 return (buf + 2); 176 } 177