The zic(8) man page describes the -v option as -v Complain if a year that appears in a data file is out- side the range of years representable by time(2) values. However this functionality appears to have been removed from the code. It is not clear whether this description should have been removed from the man page or whether the functionality was unintentionally removed from the code. If the general consensus is that the man page is correct then some code similar to the following could be added to implement it. I am open to issues and alternatives.
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*** 129,134 **** --- 263,269 ---- static void usage P((void)); static void writezone P((const char * name)); static int yearistype P((int year, const char * type)); + static void year_noise_check P((int year)); #if !(HAVE_STRERROR - 0) static char * strerror P((int)); *************** *** 141,148 **** --- 276,285 ---- static int linenum; static time_t max_time; static int max_year; + static int max_year_representable; static time_t min_time; static int min_year; + static int min_year_representable; static int noise; static const char * rfilename; static int rlinenum; *************** *** 649,654 **** --- 824,831 ---- } min_year = TM_YEAR_BASE + gmtime(&min_time)->tm_year; max_year = TM_YEAR_BASE + gmtime(&max_time)->tm_year; + min_year_representable = min_year; + max_year_representable = max_year; } *************** *** 1278,1288 **** rp->r_yrtype = NULL; else { if (rp->r_loyear == rp->r_hiyear) { ! error(_("typed single year")); return; } rp->r_yrtype = ecpyalloc(typep); } if (rp->r_loyear < min_year && rp->r_loyear > 0) min_year = rp->r_loyear; /* --- 1463,1478 ---- rp->r_yrtype = NULL; else { if (rp->r_loyear == rp->r_hiyear) { ! error(MSGSTR(ONEYEAR,"typed single year")); return; } rp->r_yrtype = ecpyalloc(typep); } + if (noise) + { + year_noise_check(rp->r_loyear); + year_noise_check(rp->r_hiyear); + } if (rp->r_loyear < min_year && rp->r_loyear > 0) min_year = rp->r_loyear; /* *************** *** 2169,2179 **** l = i; if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) { (void) fprintf(stderr, ! _("%s: %d did not sign extend correctly\n"), progname, i); (void) exit(EXIT_FAILURE); } return l; } /* --- 2365,2399 ---- l = i; if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) { (void) fprintf(stderr, ! MSGSTR(BADSIGN,"%s: %d did not sign extend correctly.\n"), progname, i); (void) exit(EXIT_FAILURE); } return l; + } + + static void + year_noise_check(year) + int year; + { + if ( ( (year < min_year_representable) || + (year > max_year_representable) ) && + ( (year != INT_MIN) && (year != INT_MAX) ) ) + { + static char *format; + static char *message; + + if (!format) + { + format = MSGSTR(UNREPYEAR, "unrepresentable year: %d"); + } + if (!message) + { + message = emalloc(strlen(format) + 32); + } + (void) sprintf(message, format, year); + warning(message); + } } /* <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Note that MSGSTR() is a simple macro that invokes catgets(3) on systems which support the X/Open interfaces. ---------------------------------------------------------------------- Timothy Patrick Murphy tpm@hi.com Voice: (617) 890-0444 Hitachi Computer Products Fax: (617) 890-4998 1601 Trapelo Rd., Waltham, MA 02154, USA ----------------------------------------------------------------------