/* * Copyright (c) 1994 Powerdog Industries.  All rights reserved. * * Redistribution and use in source and binary forms, 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. */#ifndef lintstatic char copyright[] ="@(#) Copyright (c) 1994 Powerdog Industries.  All rights reserved.";static char sccsid[] = "@(#)strptime.c	1.1 (Powerdog) 95/10/25";#endif /* not lint */#include <time.h>#include <ctype.h>#include <locale.h>#include <string.h>#define strncasecmp strnicmp#define asizeof(a)	(sizeof (a) / sizeof ((a)[0]))#ifndef sunstruct dtconv {	char	*abbrev_month_names[12];	char	*month_names[12];	char	*abbrev_weekday_names[7];	char	*weekday_names[7];	char	*time_format;	char	*sdate_format;	char	*dtime_format;	char	*am_string;	char	*pm_string;	char	*ldate_format;};#endifstatic struct dtconv	En_US = {	{ "Jan", "Feb", "Mar", "Apr", "May", "Jun",	  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" },	{ "January", "February", "March", "April",	  "May", "June", "July", "August",	  "September", "October", "November", "December" },	{ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" },	{ "Sunday", "Monday", "Tuesday", "Wednesday",	  "Thursday", "Friday", "Saturday" },	"%H:%M:%S",	"%m/%d/%y",	"%a %b %e %T %Z %Y",	"AM",	"PM",	"%A, %B, %e, %Y"};#ifdef SUNOS4extern int	strncasecmp();#endifchar	*strptime(char *buf, char *fmt, struct tm *tm){	char	c,		*ptr;	int	i,		len;	ptr = fmt;	while (*ptr != 0) {		if (*buf == 0)			break;		c = *ptr++;		if (c != '%') {			if (isspace(c))				while (*buf != 0 && isspace(*buf))					buf++;			else if (c != *buf++)				return 0;			continue;		}		c = *ptr++;		switch (c) {		case 0:		case '%':			if (*buf++ != '%')				return 0;			break;		case 'C':			buf = strptime(buf, En_US.ldate_format, tm);			if (buf == 0)				return 0;			break;		case 'c':			buf = strptime(buf, "%x %X", tm);			if (buf == 0)				return 0;			break;		case 'D':			buf = strptime(buf, "%m/%d/%y", 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, En_US.time_format, tm);			if (buf == 0)				return 0;			break;		case 'x':			buf = strptime(buf, En_US.sdate_format, tm);			if (buf == 0)				return 0;			break;		case 'j':			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			/*			 * Maria Gagliardi (mariag@inforamp.net) wins			 * a cup o' java for finding my miscalculation.			 */			if (i < 1 || i > 366)				return 0;			tm->tm_yday = i - 1;			break;		case 'M':		case 'S':			if (*buf == 0 || isspace(*buf))				break;			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			if (i > 59)				return 0;			if (c == 'M')				tm->tm_min = i;			else				tm->tm_sec = i;			if (*buf != 0 && isspace(*buf))				while (*ptr != 0 && !isspace(*ptr))					ptr++;			break;		case 'H':		case 'I':		case 'k':		case 'l':			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			if (c == 'H' || c == 'k') {				if (i > 23)					return 0;			} else if (i > 11)				return 0;			tm->tm_hour = i;			if (*buf != 0 && isspace(*buf))				while (*ptr != 0 && !isspace(*ptr))					ptr++;			break;		case 'p':			len = strlen(En_US.am_string);			if (strncasecmp(buf, En_US.am_string, len) == 0) {				if (tm->tm_hour > 12)					return 0;				if (tm->tm_hour == 12)					tm->tm_hour = 0;				buf += len;				break;			}			len = strlen(En_US.pm_string);			if (strncasecmp(buf, En_US.pm_string, 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(En_US.weekday_names); i++) {				len = strlen(En_US.weekday_names[i]);				if (strncasecmp(buf,						En_US.weekday_names[i],						len) == 0)					break;				len = strlen(En_US.abbrev_weekday_names[i]);				if (strncasecmp(buf,						En_US.abbrev_weekday_names[i],						len) == 0)					break;			}			if (i == asizeof(En_US.weekday_names))				return 0;			tm->tm_wday = i;			buf += len;			break;		case 'd':		case 'e':			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			if (i > 31)				return 0;			tm->tm_mday = i;			if (*buf != 0 && isspace(*buf))				while (*ptr != 0 && !isspace(*ptr))					ptr++;			break;		case 'B':		case 'b':		case 'h':			for (i = 0; i < asizeof(En_US.month_names); i++) {				len = strlen(En_US.month_names[i]);				if (strncasecmp(buf,						En_US.month_names[i],						len) == 0)					break;				len = strlen(En_US.abbrev_month_names[i]);				if (strncasecmp(buf,						En_US.abbrev_month_names[i],						len) == 0)					break;			}			if (i == asizeof(En_US.month_names))				return 0;			tm->tm_mon = i;			buf += len;			break;		case 'm':			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			if (i < 1 || i > 12)				return 0;			tm->tm_mon = i - 1;			if (*buf != 0 && isspace(*buf))				while (*ptr != 0 && !isspace(*ptr))					ptr++;			break;		case 'Y':		case 'y':			if (*buf == 0 || isspace(*buf))				break;			if (!isdigit(*buf))				return 0;			for (i = 0; *buf != 0 && isdigit(*buf); buf++) {				i *= 10;				i += *buf - '0';			}			if (c == 'Y')				i -= 1900;			if (i < 0)				return 0;			tm->tm_year = i;			if (*buf != 0 && isspace(*buf))				while (*ptr != 0 && !isspace(*ptr))					ptr++;			break;		}	}	return buf;}