2539acf77b
- Get all functions prototyped or at least defined before use.
- Make code compile (Mostly) clean with -Wall set
- Start to reduce the degree to which DES aka libdes is built in.
- get all functions to the same uniform standard of definition:
int
foo(a, b)
int a;
int *b;
{
:
}
- fix numerous bugs exposed by above processes.
Note - this replaces the previous work which used an unpopular function
definition style.
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
|
|
* Copyright 1990 by the Massachusetts Institute of Technology.
|
|
* For copying and distribution information, please see the file
|
|
* <Copyright.MIT>.
|
|
*
|
|
* Convert a struct tm * to a UNIX time.
|
|
*
|
|
* from: maketime.c,v 4.2 90/01/09 15:54:51 raeburn Exp $
|
|
* $Id: maketime.c,v 1.3 1995/07/18 16:37:29 mark Exp $
|
|
*/
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char rcsid[] =
|
|
"$Id: maketime.c,v 1.1 1994/03/21 16:23:54 piero Exp ";
|
|
#endif lint
|
|
#endif
|
|
|
|
#include <sys/time.h>
|
|
|
|
#define daysinyear(y) (((y) % 4) ? 365 : (((y) % 100) ? 366 : (((y) % 400) ? 365 : 366)))
|
|
|
|
#define SECSPERDAY 24*60*60
|
|
#define SECSPERHOUR 60*60
|
|
#define SECSPERMIN 60
|
|
|
|
static int cumdays[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334,
|
|
365};
|
|
|
|
static int leapyear[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
|
static int nonleapyear[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
|
|
|
|
long
|
|
maketime(tp, local)
|
|
register struct tm *tp;
|
|
int local;
|
|
{
|
|
register long retval;
|
|
int foo;
|
|
int *marray;
|
|
|
|
if (tp->tm_mon < 0 || tp->tm_mon > 11 ||
|
|
tp->tm_hour < 0 || tp->tm_hour > 23 ||
|
|
tp->tm_min < 0 || tp->tm_min > 59 ||
|
|
tp->tm_sec < 0 || tp->tm_sec > 59) /* out of range */
|
|
return 0;
|
|
|
|
retval = 0;
|
|
if (tp->tm_year < 1900)
|
|
foo = tp->tm_year + 1900;
|
|
else
|
|
foo = tp->tm_year;
|
|
|
|
if (foo < 1901 || foo > 2038) /* year is too small/large */
|
|
return 0;
|
|
|
|
if (daysinyear(foo) == 366) {
|
|
if (tp->tm_mon > 1)
|
|
retval+= SECSPERDAY; /* add leap day */
|
|
marray = leapyear;
|
|
} else
|
|
marray = nonleapyear;
|
|
|
|
if (tp->tm_mday < 0 || tp->tm_mday > marray[tp->tm_mon])
|
|
return 0; /* out of range */
|
|
|
|
while (--foo >= 1970)
|
|
retval += daysinyear(foo) * SECSPERDAY;
|
|
|
|
retval += cumdays[tp->tm_mon] * SECSPERDAY;
|
|
retval += (tp->tm_mday-1) * SECSPERDAY;
|
|
retval += tp->tm_hour * SECSPERHOUR + tp->tm_min * SECSPERMIN + tp->tm_sec;
|
|
|
|
if (local) {
|
|
/* need to use local time, so we retrieve timezone info */
|
|
struct timezone tz;
|
|
struct timeval tv;
|
|
if (gettimeofday(&tv, &tz) < 0) {
|
|
/* some error--give up? */
|
|
return(retval);
|
|
}
|
|
retval += tz.tz_minuteswest * SECSPERMIN;
|
|
}
|
|
return(retval);
|
|
}
|