head     1.3;
access   ;
symbols  ;
locks    oasisa:1.3; strict;
comment  @ * @;


1.3
date     2001.06.20.18.16.18;  author oasisa;  state Exp;
branches ;
next     1.2;

1.2
date     2001.06.19.13.23.52;  author oasisa;  state Exp;
branches ;
next     1.1;

1.1
date     2001.06.19.13.03.15;  author oasisa;  state Exp;
branches ;
next     ;


desc
@Periodic Update w/ changes to utils   
plus new utils 6/19/2001 (klh)
@


1.3
log
@Cleanup version; added day of week, let time() do calcs
@
text
@/*									    */
/* $Header: jday.c,v 1.2 2001/06/19 13:23:52 oasisa Exp $ */
/* Copyright 2001 MBARI                                                     */
/* Author: Kent Headley                                                     */
/* $Revision: 1.2 $ */
/* Summary: Compute day of year                                             */
/* Input: 0 or more dates mm/dd/yyyy; Default is current day                */
/* Output: Day of year                                                      */
/* Notes: Compile with -I /usr/include                                      */
/*									    */
/* MBARI provides this documentation and code "as is", with no warranty,    */
/* express or implied, of its quality or consistency. It is provided without*/
/* support and without obligation on the part of the Monterey Bay Aquarium  */
/* Research Institute to assist in its use, correction, modification, or    */
/* enhancement. This information should not be published or distributed to  */
/* third parties without specific written permission from MBARI.            */
/*									    */
/* $Log:	jday.c,v $
 * Revision 1.2  2001/06/19  13:23:52  13:23:52  oasisa (Oasis users)
 * Added header, logs, revision
 * 
*/

#include <stdio.h>
#include <math.h>
#include <time.h>


main(argc,argv)
int argc;
char *argv[];
{
 unsigned IsLeapYear=0;
 int year,month,day;
 int i;
 char *wdays[]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
 int mo_days[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
 enum Months{JAN=1,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV,DEC};
 struct tm *tp,when;
 time_t wtime;
 
 if (argc<2){
      time(&wtime);
      tp = localtime( &wtime );
 }else
 for(i=1;i<argc;i++){
  time(&wtime);
  when= *localtime(&wtime);
  if (sscanf(argv[i],"%d/%d/%d",&month,&day,&year)==3){
      when.tm_mon = month-1;
      when.tm_mday = day;
      when.tm_year = year-1900;
      when.tm_isdst = (-1);
	  tp = &when;
      if(mktime(tp) == (time_t)-1){
         printf("\nInvalid date\n");
         printf("Usage: %s mm/dd/yyyy\n\n",argv[0]);
		 return(0);
	  }
  }
 }
printf("\n%s %02d/%02d/%04d is day %d\n",wdays[tp->tm_wday],tp->tm_mon+1,tp->tm_mday,tp->tm_year+1900,tp->tm_yday+1);
printf("Usage: %s mm/dd/yyyy\n\n",argv[0]);
return(0);
}
@


1.2
log
@Added header, logs, revision
@
text
@d2 1
a2 1
/* $Header$ */
d5 5
a9 1
/* $Revision$ */
d18 4
a21 2
/* $Log$

d26 3
a28 3
#include <time.h>


d35 2
a36 1
 int i,j,jday;
d39 21
a59 25
 struct tm *today;
 time_t ltime;

 if (argc<2){
	 time(&ltime);
	today = localtime( &ltime );
	printf("%d\n",today->tm_yday+1);
	return(0);	
 }
 
 for(i=1;i<argc;i++){
  if (sscanf(argv[i],"%d/%d/%d",&month,&day,&year)==3){
    if(year%4==0)
		IsLeapYear=1;
	if(year%100==0 && year%400!=0)
		IsLeapYear=0;

	if(day>mo_days[month])
		if(!(day==29 && month==FEB && IsLeapYear)){
			printf("Invalid date");
			return(0);
		}
    for(j=0,jday=0;j<month;jday+=mo_days[j++]);
    jday+=(day+((IsLeapYear && month>FEB)?1:0));
    printf("%d\n",jday);
d61 3
a63 1
 }
@


1.1
log
@Initial revision
@
text
@d2 1
d5 1
d14 4
@