1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * strftime implementation 25 */ 26 27 #define strftime ______strftime 28 29 #include <ast.h> 30 #include <tm.h> 31 32 #undef strftime 33 34 #undef _def_map_ast 35 #include <ast_map.h> 36 37 #undef _lib_strftime /* we can pass X/Open */ 38 39 #if _lib_strftime 40 41 NoN(strftime) 42 43 #else 44 45 #if defined(__EXPORT__) 46 #define extern __EXPORT__ 47 #endif 48 49 extern size_t 50 strftime(char* buf, size_t len, const char* format, const struct tm* tm) 51 { 52 register char* s; 53 time_t t; 54 Tm_t tl; 55 56 memset(&tl, 0, sizeof(tl)); 57 58 /* 59 * nl_langinfo() may call strftime() with bogus tm except for 60 * one value -- what a way to go 61 */ 62 63 if (tm->tm_sec < 0 || tm->tm_sec > 60 || 64 tm->tm_min < 0 || tm->tm_min > 59 || 65 tm->tm_hour < 0 || tm->tm_hour > 23 || 66 tm->tm_wday < 0 || tm->tm_wday > 6 || 67 tm->tm_mday < 1 || tm->tm_mday > 31 || 68 tm->tm_mon < 0 || tm->tm_mon > 11 || 69 tm->tm_year < 0 || tm->tm_year > (2138 - 1900)) 70 { 71 if (tm->tm_sec >= 0 && tm->tm_sec <= 60) 72 tl.tm_sec = tm->tm_sec; 73 if (tm->tm_min >= 0 && tm->tm_min <= 59) 74 tl.tm_min = tm->tm_min; 75 if (tm->tm_hour >= 0 && tm->tm_hour <= 23) 76 tl.tm_hour = tm->tm_hour; 77 if (tm->tm_wday >= 0 && tm->tm_wday <= 6) 78 tl.tm_wday = tm->tm_wday; 79 if (tm->tm_mday >= 0 && tm->tm_mday <= 31) 80 tl.tm_mday = tm->tm_mday; 81 if (tm->tm_mon >= 0 && tm->tm_mon <= 11) 82 tl.tm_mon = tm->tm_mon; 83 if (tm->tm_year >= 0 && tm->tm_year <= (2138 - 1900)) 84 tl.tm_year = tm->tm_year; 85 } 86 else 87 { 88 tl.tm_sec = tm->tm_sec; 89 tl.tm_min = tm->tm_min; 90 tl.tm_hour = tm->tm_hour; 91 tl.tm_mday = tm->tm_mday; 92 tl.tm_mon = tm->tm_mon; 93 tl.tm_year = tm->tm_year; 94 tl.tm_wday = tm->tm_wday; 95 tl.tm_yday = tm->tm_yday; 96 tl.tm_isdst = tm->tm_isdst; 97 } 98 t = tmtime(&tl, TM_LOCALZONE); 99 if (!(s = tmfmt(buf, len, format, &t))) 100 return 0; 101 return s - buf; 102 } 103 104 #endif 105