/* * Copyright 1995, 1999, 2007 by the Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may * require a specific license from the United States Government. * It is the responsibility of any person or organization contemplating * export to obtain such a license before exporting. * * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and * distribute this software and its documentation for any purpose and * without fee is hereby granted, provided that the above copyright * notice appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, and that * the name of M.I.T. not be used in advertising or publicity pertaining * to distribution of the software without specific, written prior * permission. Furthermore if you modify this software you must label * your software as modified software and not distribute it in such a * fashion that it might be confused with the original M.I.T. software. * M.I.T. makes no representations about the suitability of * this software for any purpose. It is provided "as is" without express * or implied warranty. * */ #include "heim.h" #include <string.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <ctype.h> mit_krb5_error_code KRB5_CALLCONV krb5_string_to_timestamp(char *string, mit_krb5_timestamp *timestampp) { int i; struct tm timebuf, timebuf2; time_t now, ret_time; char *s; static const char * const atime_format_table[] = { "%Y%m%d%H%M%S", /* yyyymmddhhmmss */ "%Y.%m.%d.%H.%M.%S", /* yyyy.mm.dd.hh.mm.ss */ "%y%m%d%H%M%S", /* yymmddhhmmss */ "%y.%m.%d.%H.%M.%S", /* yy.mm.dd.hh.mm.ss */ "%y%m%d%H%M", /* yymmddhhmm */ "%H%M%S", /* hhmmss */ "%H%M", /* hhmm */ "%T", /* hh:mm:ss */ "%R", /* hh:mm */ /* The following not really supported unless native strptime present */ "%x:%X", /* locale-dependent short format */ "%d-%b-%Y:%T", /* dd-month-yyyy:hh:mm:ss */ "%d-%b-%Y:%R" /* dd-month-yyyy:hh:mm */ }; static const int atime_format_table_nents = sizeof(atime_format_table)/sizeof(atime_format_table[0]); now = time((time_t *) NULL); if (localtime_r(&now, &timebuf2) == NULL) return EINVAL; for (i=0; i<atime_format_table_nents; i++) { /* We reset every time throughout the loop as the manual page * indicated that no guarantees are made as to preserving timebuf * when parsing fails */ timebuf = timebuf2; if ((s = strptime(string, atime_format_table[i], &timebuf)) && (s != string)) { /* See if at end of buffer - otherwise partial processing */ while(*s != 0 && isspace((unsigned char) *s)) s++; if (*s != 0) continue; if (timebuf.tm_year <= 0) continue; /* clearly confused */ ret_time = mktime(&timebuf); if (ret_time == (time_t) -1) continue; /* clearly confused */ *timestampp = (mit_krb5_timestamp) ret_time; return 0; } } return(EINVAL); }