1 /* $NetBSD: time.c,v 1.1.1.2 2012/01/31 21:27:45 kardel Exp $ */ 2 3 4 /** 5 * \file time.c 6 * 7 * Time-stamp: "2011-03-06 11:52:23 bkorb" 8 * 9 * This file is part of AutoOpts, a companion to AutoGen. 10 * AutoOpts is free software. 11 * AutoOpts is Copyright (c) 1992-2011 by Bruce Korb - all rights reserved 12 * 13 * AutoOpts is available under any one of two licenses. The license 14 * in use must be one of these two and the choice is under the control 15 * of the user of the license. 16 * 17 * The GNU Lesser General Public License, version 3 or later 18 * See the files "COPYING.lgplv3" and "COPYING.gplv3" 19 * 20 * The Modified Berkeley Software Distribution License 21 * See the file "COPYING.mbsd" 22 * 23 * These files have the following md5sums: 24 * 25 * 43b91e8ca915626ed3818ffb1b71248b pkg/libopts/COPYING.gplv3 26 * 06a1a2e4760c90ea5e1dad8dfaac4d39 pkg/libopts/COPYING.lgplv3 27 * 66a5cedaf62c4b2637025f049f9b826f pkg/libopts/COPYING.mbsd 28 */ 29 30 /*=export_func optionTimeVal 31 * private: 32 * 33 * what: process an option with a time duration. 34 * arg: + tOptions* + pOpts + program options descriptor + 35 * arg: + tOptDesc* + pOptDesc + the descriptor for this arg + 36 * 37 * doc: 38 * Decipher a time duration value. 39 =*/ 40 void 41 optionTimeVal(tOptions * pOpts, tOptDesc * pOD) 42 { 43 time_t val; 44 45 if ((pOD->fOptState & OPTST_RESET) != 0) 46 return; 47 48 val = parse_duration(pOD->optArg.argString); 49 if (val == BAD_TIME) { 50 fprintf(stderr, zNotDuration, pOpts->pzProgName, pOD->optArg.argString); 51 if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0) 52 (*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE); 53 } 54 55 if (pOD->fOptState & OPTST_ALLOC_ARG) { 56 AGFREE(pOD->optArg.argString); 57 pOD->fOptState &= ~OPTST_ALLOC_ARG; 58 } 59 60 pOD->optArg.argInt = val; 61 } 62 63 /*=export_func optionTimeDate 64 * private: 65 * 66 * what: process an option with a time and date. 67 * arg: + tOptions* + pOpts + program options descriptor + 68 * arg: + tOptDesc* + pOptDesc + the descriptor for this arg + 69 * 70 * doc: 71 * Decipher a time and date value. 72 =*/ 73 void 74 optionTimeDate(tOptions * pOpts, tOptDesc * pOD) 75 { 76 #if defined(HAVE_GETDATE_R) && defined(HAVE_PUTENV) 77 if ((! HAS_pzPkgDataDir(pOpts)) || (pOpts->pzPkgDataDir == NULL)) 78 goto default_action; 79 80 /* 81 * Export the DATEMSK environment variable. getdate_r() uses it to 82 * find the file with the strptime formats. If we cannot find the file 83 * we need ($PKGDATADIR/datemsk), then fall back to just a time duration. 84 */ 85 { 86 static char * envptr = NULL; 87 88 if (envptr == NULL) { 89 static char const fmt[] = "DATEMSK=%s/datemsk"; 90 envptr = AGALOC(sizeof(fmt) + strlen(pOpts->pzPkgDataDir), fmt); 91 sprintf(envptr, fmt, pOpts->pzPkgDataDir); 92 93 putenv(envptr); 94 } 95 96 if (access(envptr+8, R_OK) != 0) 97 goto default_action; 98 } 99 100 /* 101 * Convert the date to a time since the epoch and stash it in a long int. 102 */ 103 { 104 struct tm stm; 105 time_t tm; 106 107 if (getdate_r(pOD->optArg.argString, &stm) != 0) { 108 fprintf(stderr, zNotDate, pOpts->pzProgName, 109 pOD->optArg.argString); 110 if ((pOpts->fOptSet & OPTPROC_ERRSTOP) != 0) 111 (*(pOpts->pUsageProc))(pOpts, EXIT_FAILURE); 112 return; 113 } 114 115 tm = mktime(&stm); 116 117 if (pOD->fOptState & OPTST_ALLOC_ARG) { 118 AGFREE(pOD->optArg.argString); 119 pOD->fOptState &= ~OPTST_ALLOC_ARG; 120 } 121 122 pOD->optArg.argInt = tm; 123 } 124 return; 125 126 default_action: 127 128 #endif 129 optionTimeVal(pOpts, pOD); 130 if (pOD->optArg.argInt != BAD_TIME) 131 pOD->optArg.argInt += (unsigned long)time(NULL); 132 } 133 /* 134 * Local Variables: 135 * mode: C 136 * c-file-style: "stroustrup" 137 * indent-tabs-mode: nil 138 * End: 139 * end of autoopts/time.c */ 140