diff options
Diffstat (limited to 'lib/libc/stdtime/strptime.c')
-rw-r--r-- | lib/libc/stdtime/strptime.c | 543 |
1 files changed, 0 insertions, 543 deletions
diff --git a/lib/libc/stdtime/strptime.c b/lib/libc/stdtime/strptime.c deleted file mode 100644 index ef1e09d..0000000 --- a/lib/libc/stdtime/strptime.c +++ /dev/null @@ -1,543 +0,0 @@ -/* - * Powerdog Industries kindly requests feedback from anyone modifying - * this function: - * - * Date: Thu, 05 Jun 1997 23:17:17 -0400 - * From: Kevin Ruddy <kevin.ruddy@powerdog.com> - * To: James FitzGibbon <james@nexis.net> - * Subject: Re: Use of your strptime(3) code (fwd) - * - * The reason for the "no mod" clause was so that modifications would - * come back and we could integrate them and reissue so that a wider - * audience could use it (thereby spreading the wealth). This has - * made it possible to get strptime to work on many operating systems. - * I'm not sure why that's "plain unacceptable" to the FreeBSD team. - * - * Anyway, you can change it to "with or without modification" as - * you see fit. Enjoy. - * - * Kevin Ruddy - * Powerdog Industries, Inc. - */ -/* - * Copyright (c) 1994 Powerdog Industries. 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 Powerdog Industries. - * 4. The name of Powerdog Industries may not be used to endorse or - * promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY POWERDOG INDUSTRIES ``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 POWERDOG INDUSTRIES 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 LIBC_RCS -static const char rcsid[] = - "$FreeBSD$"; -#endif - -#ifndef lint -#ifndef NOID -static char copyright[] = -"@(#) Copyright (c) 1994 Powerdog Industries. All rights reserved."; -static char sccsid[] = "@(#)strptime.c 0.1 (Powerdog) 94/03/27"; -#endif /* !defined NOID */ -#endif /* not lint */ - -#include <time.h> -#include <ctype.h> -#include <string.h> -#ifdef _THREAD_SAFE -#include <pthread.h> -#include "pthread_private.h" -#endif -#include "timelocal.h" - -static char * _strptime(const char *, const char *, struct tm *); - -#ifdef _THREAD_SAFE -static struct pthread_mutex _gotgmt_mutexd = PTHREAD_MUTEX_STATIC_INITIALIZER; -static pthread_mutex_t gotgmt_mutex = &_gotgmt_mutexd; -#endif -static int got_GMT; - -#define asizeof(a) (sizeof (a) / sizeof ((a)[0])) - -static char * -_strptime(const char *buf, const char *fmt, struct tm *tm) -{ - char c; - const char *ptr; - int i, - len; - int Ealternative, Oalternative; - - ptr = fmt; - while (*ptr != 0) { - if (*buf == 0) - break; - - c = *ptr++; - - if (c != '%') { - if (isspace((unsigned char)c)) - while (*buf != 0 && isspace((unsigned char)*buf)) - buf++; - else if (c != *buf++) - return 0; - continue; - } - - Ealternative = 0; - Oalternative = 0; -label: - c = *ptr++; - switch (c) { - case 0: - case '%': - if (*buf++ != '%') - return 0; - break; - - case '+': - buf = _strptime(buf, Locale->date_fmt, tm); - if (buf == 0) - return 0; - break; - - case 'C': - if (!isdigit((unsigned char)*buf)) - return 0; - - /* XXX This will break for 3-digit centuries. */ - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (i < 19) - return 0; - - tm->tm_year = i * 100 - 1900; - break; - - case 'c': - buf = _strptime(buf, Locale->c_fmt, tm); - if (buf == 0) - return 0; - break; - - case 'D': - buf = _strptime(buf, "%m/%d/%y", tm); - if (buf == 0) - return 0; - break; - - case 'E': - if (Ealternative || Oalternative) - break; - Ealternative++; - goto label; - - case 'O': - if (Ealternative || Oalternative) - break; - Oalternative++; - goto label; - - case 'F': - case 'f': - if (!Ealternative) - break; - buf = _strptime(buf, (c == 'f') ? Locale->Ef_fmt : Locale->EF_fmt, tm); - if (buf == 0) - return 0; - break; - - case 'R': - buf = _strptime(buf, "%H:%M", tm); - if (buf == 0) - return 0; - break; - - case 'r': - buf = _strptime(buf, "%I:%M:%S %p", tm); - if (buf == 0) - return 0; - break; - - case 'T': - buf = _strptime(buf, "%H:%M:%S", tm); - if (buf == 0) - return 0; - break; - - case 'X': - buf = _strptime(buf, Locale->X_fmt, tm); - if (buf == 0) - return 0; - break; - - case 'x': - buf = _strptime(buf, Locale->x_fmt, tm); - if (buf == 0) - return 0; - break; - - case 'j': - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 3; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (i < 1 || i > 366) - return 0; - - tm->tm_yday = i - 1; - break; - - case 'M': - case 'S': - if (*buf == 0 || isspace((unsigned char)*buf)) - break; - - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - - if (c == 'M') { - if (i > 59) - return 0; - tm->tm_min = i; - } else { - if (i > 60) - return 0; - tm->tm_sec = i; - } - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'H': - case 'I': - case 'k': - case 'l': - /* - * Of these, %l is the only specifier explicitly - * documented as not being zero-padded. However, - * there is no harm in allowing zero-padding. - * - * XXX The %l specifier may gobble one too many - * digits if used incorrectly. - */ - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (c == 'H' || c == 'k') { - if (i > 23) - return 0; - } else if (i > 12) - return 0; - - tm->tm_hour = i; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'p': - /* - * XXX This is bogus if parsed before hour-related - * specifiers. - */ - len = strlen(Locale->am); - if (strncasecmp(buf, Locale->am, len) == 0) { - if (tm->tm_hour > 12) - return 0; - if (tm->tm_hour == 12) - tm->tm_hour = 0; - buf += len; - break; - } - - len = strlen(Locale->pm); - if (strncasecmp(buf, Locale->pm, len) == 0) { - if (tm->tm_hour > 12) - return 0; - if (tm->tm_hour != 12) - tm->tm_hour += 12; - buf += len; - break; - } - - return 0; - - case 'A': - case 'a': - for (i = 0; i < asizeof(Locale->weekday); i++) { - if (c == 'A') { - len = strlen(Locale->weekday[i]); - if (strncasecmp(buf, - Locale->weekday[i], - len) == 0) - break; - } else { - len = strlen(Locale->wday[i]); - if (strncasecmp(buf, - Locale->wday[i], - len) == 0) - break; - } - } - if (i == asizeof(Locale->weekday)) - return 0; - - tm->tm_wday = i; - buf += len; - break; - - case 'U': - case 'W': - /* - * XXX This is bogus, as we can not assume any valid - * information present in the tm structure at this - * point to calculate a real value, so just check the - * range for now. - */ - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (i > 53) - return 0; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'w': - if (!isdigit((unsigned char)*buf)) - return 0; - - i = *buf - '0'; - if (i > 6) - return 0; - - tm->tm_wday = i; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'd': - case 'e': - /* - * The %e specifier is explicitly documented as not - * being zero-padded but there is no harm in allowing - * such padding. - * - * XXX The %e specifier may gobble one too many - * digits if used incorrectly. - */ - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (i > 31) - return 0; - - tm->tm_mday = i; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'B': - case 'b': - case 'h': - for (i = 0; i < asizeof(Locale->month); i++) { - if (Oalternative) { - if (c == 'B') { - len = strlen(Locale->alt_month[i]); - if (strncasecmp(buf, - Locale->alt_month[i], - len) == 0) - break; - } - } else { - if (c == 'B') { - len = strlen(Locale->month[i]); - if (strncasecmp(buf, - Locale->month[i], - len) == 0) - break; - } else { - len = strlen(Locale->mon[i]); - if (strncasecmp(buf, - Locale->mon[i], - len) == 0) - break; - } - } - } - if (i == asizeof(Locale->month)) - return 0; - - tm->tm_mon = i; - buf += len; - break; - - case 'm': - if (!isdigit((unsigned char)*buf)) - return 0; - - len = 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (i < 1 || i > 12) - return 0; - - tm->tm_mon = i - 1; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'Y': - case 'y': - if (*buf == 0 || isspace((unsigned char)*buf)) - break; - - if (!isdigit((unsigned char)*buf)) - return 0; - - len = (c == 'Y') ? 4 : 2; - for (i = 0; len && *buf != 0 && isdigit((unsigned char)*buf); buf++) { - i *= 10; - i += *buf - '0'; - len--; - } - if (c == 'Y') - i -= 1900; - if (c == 'y' && i < 69) - i += 100; - if (i < 0) - return 0; - - tm->tm_year = i; - - if (*buf != 0 && isspace((unsigned char)*buf)) - while (*ptr != 0 && !isspace((unsigned char)*ptr)) - ptr++; - break; - - case 'Z': - { - const char *cp; - char *zonestr; - - for (cp = buf; *cp && isupper((unsigned char)*cp); ++cp) {/*empty*/} - if (cp - buf) { - zonestr = alloca(cp - buf + 1); - strncpy(zonestr, buf, cp - buf); - zonestr[cp - buf] = '\0'; - tzset(); - if (0 == strcmp(zonestr, "GMT")) { - got_GMT = 1; - } else if (0 == strcmp(zonestr, tzname[0])) { - tm->tm_isdst = 0; - } else if (0 == strcmp(zonestr, tzname[1])) { - tm->tm_isdst = 1; - } else { - return 0; - } - buf += cp - buf; - } - } - break; - } - } - return (char *)buf; -} - - -char * -strptime(const char *buf, const char *fmt, struct tm *tm) -{ - char *ret; - -#ifdef _THREAD_SAFE - pthread_mutex_lock(&gotgmt_mutex); -#endif - - got_GMT = 0; - ret = _strptime(buf, fmt, tm); - if (ret && got_GMT) { - time_t t = timegm(tm); - localtime_r(&t, tm); - got_GMT = 0; - } - -#ifdef _THREAD_SAFE - pthread_mutex_unlock(&gotgmt_mutex); -#endif - - return ret; -} |