diff options
Diffstat (limited to 'crypto/kerberosIV/lib/roken/strftime.c')
| -rw-r--r-- | crypto/kerberosIV/lib/roken/strftime.c | 627 |
1 files changed, 361 insertions, 266 deletions
diff --git a/crypto/kerberosIV/lib/roken/strftime.c b/crypto/kerberosIV/lib/roken/strftime.c index 673d448..b90614b 100644 --- a/crypto/kerberosIV/lib/roken/strftime.c +++ b/crypto/kerberosIV/lib/roken/strftime.c @@ -1,301 +1,396 @@ /* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. + * Copyright (c) 1999 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of KTH nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif -#ifdef TIME_WITH_SYS_TIME -#include <sys/time.h> -#include <time.h> -#elif defined(HAVE_SYS_TIME_H) -#include <sys/time.h> -#else -#include <time.h> -#endif -#define TM_YEAR_BASE 1900 /* from <tzfile.h> */ -#include <string.h> +#include "roken.h" + +RCSID("$Id: strftime.c,v 1.10 1999/11/13 04:18:33 assar Exp $"); -static char *afmt[] = { - "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", +static const char *abb_weekdays[] = { + "Sun", + "Mon", + "Tue", + "Wed", + "Thu", + "Fri", + "Sat", }; -static char *Afmt[] = { - "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", - "Saturday", + +static const char *full_weekdays[] = { + "Sunday", + "Monday", + "Tuesday", + "Wednesday", + "Thursday", + "Friday", + "Saturday", }; -static char *bfmt[] = { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", - "Oct", "Nov", "Dec", + +static const char *abb_month[] = { + "Jan", + "Feb", + "Mar", + "Apr", + "May", + "Jun", + "Jul", + "Aug", + "Sep", + "Oct", + "Nov", + "Dec" }; -static char *Bfmt[] = { - "January", "February", "March", "April", "May", "June", "July", - "August", "September", "October", "November", "December", + +static const char *full_month[] = { + "January", + "February", + "Mars", + "April", + "May", + "June", + "July", + "August", + "September", + "October", + "November", + "December" }; -static size_t gsize; -static char *pt; +static const char *ampm[] = { + "AM", + "PM" +}; -static int _add (char *); -static int _conv (int, int, int); -#ifdef HAVE_MKTIME -static int _secs (const struct tm *); -#endif /* HAVE_MKTIME */ -static size_t _fmt (const char *, const struct tm *); +/* + * Convert hour in [0, 24] to [12 1 - 11 12 1 - 11 12] + */ -size_t -strftime(char *s, size_t maxsize, const char *format, const struct tm *t) +static int +hour_24to12 (int hour) { + int ret = hour % 12; - pt = s; - if ((gsize = maxsize) < 1) - return(0); - if (_fmt(format, t)) { - *pt = '\0'; - return(maxsize - gsize); - } - return(0); + if (ret == 0) + ret = 12; + return ret; } -static size_t -_fmt(const char *format, const struct tm *t) +/* + * Return AM or PM for `hour' + */ + +static const char * +hour_to_ampm (int hour) { - for (; *format; ++format) { - if (*format == '%') - switch(*++format) { - case '\0': - --format; - break; - case 'A': - if (t->tm_wday < 0 || t->tm_wday > 6) - return(0); - if (!_add(Afmt[t->tm_wday])) - return(0); - continue; - case 'a': - if (t->tm_wday < 0 || t->tm_wday > 6) - return(0); - if (!_add(afmt[t->tm_wday])) - return(0); - continue; - case 'B': - if (t->tm_mon < 0 || t->tm_mon > 11) - return(0); - if (!_add(Bfmt[t->tm_mon])) - return(0); - continue; - case 'b': - case 'h': - if (t->tm_mon < 0 || t->tm_mon > 11) - return(0); - if (!_add(bfmt[t->tm_mon])) - return(0); - continue; - case 'C': - if (!_fmt("%a %b %e %H:%M:%S %Y", t)) - return(0); - continue; - case 'c': - if (!_fmt("%m/%d/%y %H:%M:%S", t)) - return(0); - continue; - case 'D': - if (!_fmt("%m/%d/%y", t)) - return(0); - continue; - case 'd': - if (!_conv(t->tm_mday, 2, '0')) - return(0); - continue; - case 'e': - if (!_conv(t->tm_mday, 2, ' ')) - return(0); - continue; - case 'H': - if (!_conv(t->tm_hour, 2, '0')) - return(0); - continue; - case 'I': - if (!_conv(t->tm_hour % 12 ? - t->tm_hour % 12 : 12, 2, '0')) - return(0); - continue; - case 'j': - if (!_conv(t->tm_yday + 1, 3, '0')) - return(0); - continue; - case 'k': - if (!_conv(t->tm_hour, 2, ' ')) - return(0); - continue; - case 'l': - if (!_conv(t->tm_hour % 12 ? - t->tm_hour % 12 : 12, 2, ' ')) - return(0); - continue; - case 'M': - if (!_conv(t->tm_min, 2, '0')) - return(0); - continue; - case 'm': - if (!_conv(t->tm_mon + 1, 2, '0')) - return(0); - continue; - case 'n': - if (!_add("\n")) - return(0); - continue; - case 'p': - if (!_add(t->tm_hour >= 12 ? "PM" : "AM")) - return(0); - continue; - case 'R': - if (!_fmt("%H:%M", t)) - return(0); - continue; - case 'r': - if (!_fmt("%I:%M:%S %p", t)) - return(0); - continue; - case 'S': - if (!_conv(t->tm_sec, 2, '0')) - return(0); - continue; -#ifdef HAVE_MKTIME - case 's': - if (!_secs(t)) - return(0); - continue; -#endif /* HAVE_MKTIME */ - case 'T': - case 'X': - if (!_fmt("%H:%M:%S", t)) - return(0); - continue; - case 't': - if (!_add("\t")) - return(0); - continue; - case 'U': - if (!_conv((t->tm_yday + 7 - t->tm_wday) / 7, - 2, '0')) - return(0); - continue; - case 'W': - if (!_conv((t->tm_yday + 7 - - (t->tm_wday ? (t->tm_wday - 1) : 6)) - / 7, 2, '0')) - return(0); - continue; - case 'w': - if (!_conv(t->tm_wday, 1, '0')) - return(0); - continue; - case 'x': - if (!_fmt("%m/%d/%y", t)) - return(0); - continue; - case 'y': - if (!_conv((t->tm_year + TM_YEAR_BASE) - % 100, 2, '0')) - return(0); - continue; - case 'Y': - if (!_conv(t->tm_year + TM_YEAR_BASE, 4, '0')) - return(0); - continue; -#ifdef notdef - case 'Z': - if (!t->tm_zone || !_add(t->tm_zone)) - return(0); - continue; -#endif - case '%': - /* - * X311J/88-090 (4.12.3.5): if conversion char is - * undefined, behavior is undefined. Print out the - * character itself as printf(3) does. - */ - default: - break; - } - if (!gsize--) - return(0); - *pt++ = *format; - } - return(gsize); + return ampm[hour / 12]; } -#ifdef HAVE_MKTIME +/* + * Return the week number of `tm' (Sunday being the first day of the week) + * as [0, 53] + */ + static int -_secs(const struct tm *t) +week_number_sun (const struct tm *tm) { - static char buf[15]; - time_t s; - char *p; - struct tm tmp; - - /* Make a copy, mktime(3) modifies the tm struct. */ - tmp = *t; - s = mktime(&tmp); - for (p = buf + sizeof(buf) - 2; s > 0 && p > buf; s /= 10) - *p-- = s % 10 + '0'; - return(_add(++p)); + return (tm->tm_yday + 7 - (tm->tm_yday % 7 - tm->tm_wday + 7) % 7) / 7; } -#endif /* HAVE_MKTIME */ + +/* + * Return the week number of `tm' (Monday being the first day of the week) + * as [0, 53] + */ static int -_conv(int n, int digits, int pad) +week_number_mon (const struct tm *tm) { - static char buf[10]; - char *p; + int wday = (tm->tm_wday + 6) % 7; - for (p = buf + sizeof(buf) - 2; n > 0 && p > buf; n /= 10, --digits) - *p-- = n % 10 + '0'; - while (p > buf && digits-- > 0) - *p-- = pad; - return(_add(++p)); + return (tm->tm_yday + 7 - (tm->tm_yday % 7 - wday + 7) % 7) / 7; } +/* + * Return the week number of `tm' (Monday being the first day of the + * week) as [01, 53]. Week number one is the one that has four or more + * days in that year. + */ + static int -_add(str) - char *str; +week_number_mon4 (const struct tm *tm) +{ + int wday = (tm->tm_wday + 6) % 7; + int w1day = (wday - tm->tm_yday % 7 + 7) % 7; + int ret; + + ret = (tm->tm_yday + w1day) / 7; + if (w1day >= 4) + --ret; + if (ret == -1) + ret = 53; + else + ++ret; + return ret; +} + +/* + * + */ + +size_t +strftime (char *buf, size_t maxsize, const char *format, + const struct tm *tm) { - for (;; ++pt, --gsize) { - if (!gsize) - return(0); - if (!(*pt = *str++)) - return(1); + size_t n = 0; + size_t ret; + + while (*format != '\0' && n < maxsize) { + if (*format == '%') { + ++format; + if(*format == 'E' || *format == 'O') + ++format; + switch (*format) { + case 'a' : + ret = snprintf (buf, maxsize - n, + "%s", abb_weekdays[tm->tm_wday]); + break; + case 'A' : + ret = snprintf (buf, maxsize - n, + "%s", full_weekdays[tm->tm_wday]); + break; + case 'h' : + case 'b' : + ret = snprintf (buf, maxsize - n, + "%s", abb_month[tm->tm_mon]); + break; + case 'B' : + ret = snprintf (buf, maxsize - n, + "%s", full_month[tm->tm_mon]); + break; + case 'c' : + ret = snprintf (buf, maxsize - n, + "%d:%02d:%02d %02d:%02d:%02d", + tm->tm_year, + tm->tm_mon + 1, + tm->tm_mday, + tm->tm_hour, + tm->tm_min, + tm->tm_sec); + break; + case 'C' : + ret = snprintf (buf, maxsize - n, + "%02d", (tm->tm_year + 1900) / 100); + break; + case 'd' : + ret = snprintf (buf, maxsize - n, + "%02d", tm->tm_mday); + break; + case 'D' : + ret = snprintf (buf, maxsize - n, + "%02d/%02d/%02d", + tm->tm_mon + 1, + tm->tm_mday, + (tm->tm_year + 1900) % 100); + break; + case 'e' : + ret = snprintf (buf, maxsize - n, + "%2d", tm->tm_mday); + break; + case 'F': + ret = snprintf (buf, maxsize - n, + "%04d-%02d-%02d", tm->tm_year + 1900, + tm->tm_mon + 1, tm->tm_mday); + break; + case 'g': + /* last two digits of week-based year */ + abort(); + case 'G': + /* week-based year */ + abort(); + case 'H' : + ret = snprintf (buf, maxsize - n, + "%02d", tm->tm_hour); + break; + case 'I' : + ret = snprintf (buf, maxsize - n, + "%02d", + hour_24to12 (tm->tm_hour)); + break; + case 'j' : + ret = snprintf (buf, maxsize - n, + "%03d", tm->tm_yday + 1); + break; + case 'k' : + ret = snprintf (buf, maxsize - n, + "%2d", tm->tm_hour); + break; + case 'l' : + ret = snprintf (buf, maxsize - n, + "%2d", + hour_24to12 (tm->tm_hour)); + break; + case 'm' : + ret = snprintf (buf, maxsize - n, + "%02d", tm->tm_mon + 1); + break; + case 'M' : + ret = snprintf (buf, maxsize - n, + "%02d", tm->tm_min); + break; + case 'n' : + ret = snprintf (buf, maxsize - n, "\n"); + break; + case 'p' : + ret = snprintf (buf, maxsize - n, "%s", + hour_to_ampm (tm->tm_hour)); + break; + case 'r' : + ret = snprintf (buf, maxsize - n, + "%02d:%02d:%02d %s", + hour_24to12 (tm->tm_hour), + tm->tm_min, + tm->tm_sec, + hour_to_ampm (tm->tm_hour)); + break; + case 'R' : + ret = snprintf (buf, maxsize - n, + "%02d:%02d", + tm->tm_hour, + tm->tm_min); + + case 's' : + ret = snprintf (buf, maxsize - n, + "%d", (int)mktime((struct tm *)tm)); + break; + case 'S' : + ret = snprintf (buf, maxsize - n, + "%02d", tm->tm_sec); + break; + case 't' : + ret = snprintf (buf, maxsize - n, "\t"); + break; + case 'T' : + case 'X' : + ret = snprintf (buf, maxsize - n, + "%02d:%02d:%02d", + tm->tm_hour, + tm->tm_min, + tm->tm_sec); + break; + case 'u' : + ret = snprintf (buf, maxsize - n, + "%d", (tm->tm_wday == 0) ? 7 : tm->tm_wday); + break; + case 'U' : + ret = snprintf (buf, maxsize - n, + "%02d", week_number_sun (tm)); + break; + case 'V' : + ret = snprintf (buf, maxsize - n, + "%02d", week_number_mon4 (tm)); + break; + case 'w' : + ret = snprintf (buf, maxsize - n, + "%d", tm->tm_wday); + break; + case 'W' : + ret = snprintf (buf, maxsize - n, + "%02d", week_number_mon (tm)); + break; + case 'x' : + ret = snprintf (buf, maxsize - n, + "%d:%02d:%02d", + tm->tm_year, + tm->tm_mon + 1, + tm->tm_mday); + break; + case 'y' : + ret = snprintf (buf, maxsize - n, + "%02d", (tm->tm_year + 1900) % 100); + break; + case 'Y' : + ret = snprintf (buf, maxsize - n, + "%d", tm->tm_year + 1900); + break; + case 'z': + ret = snprintf (buf, maxsize - n, + "%ld", +#if defined(HAVE_STRUCT_TM_TM_GMTOFF) + (long)tm->tm_gmtoff +#elif defined(HAVE_TIMEZONE) + tm->tm_isdst ? + (long)altzone : + (long)timezone +#else +#error Where in timezone chaos are you? +#endif + ); + break; + case 'Z' : + ret = snprintf (buf, maxsize - n, + "%s", + +#if defined(HAVE_STRUCT_TM_TM_ZONE) + tm->tm_zone +#elif defined(HAVE_TIMEZONE) + tzname[tm->tm_isdst] +#else +#error what? +#endif + ); + break; + case '\0' : + --format; + /* FALLTHROUGH */ + case '%' : + ret = snprintf (buf, maxsize - n, + "%%"); + break; + default : + ret = snprintf (buf, maxsize - n, + "%%%c", *format); + break; + } + if (ret >= maxsize - n) + return 0; + n += ret; + buf += ret; + ++format; + } else { + *buf++ = *format++; + ++n; } + } + *buf++ = '\0'; + return n; } |
