/usr/include/plplot/qsastime.h is in libqsastime-dev 5.10.0+dfsg2-0.1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | #ifndef _QSASTIME_H_
#define _QSASTIME_H_
//
// This software originally contributed under the LGPL in January 2009 to
// PLplot by the
// Cluster Science Centre
// QSAS team,
// Imperial College, London
// Copyright (C) 2009 Imperial College, London
//
// This file is part of PLplot.
//
// PLplot is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published
// by the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// PLplot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with PLplot; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//
// MJD measures from the start of 17 Nov 1858
// These utilities use the Gregorian calendar after 4 Oct 1582 (Julian) i.e. from 15 Oct 1582 Gregorian
// Note C libraries use Gregorian only from 14 Sept 1752
// More detailed discussion can be found at http://aa.usno.navy.mil/data/docs/JulianDate.php
// These routines have been compared with the results of the US Naval Observatory online converter.
// Modified Julian Date (MJD) = Julian Date (JD) - 2400000.5
//
// In all routines, specifying a day, hour, minute or second field greater than would be valid is
// handled with modulo arithmetic and safe.
// Thus 2006-12-32 00:62:00.0 will safely, and correctly, be treated as 2007-01-01 01:02:00.0
//
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// include header file for dll definitions
#include "qsastimedll.h"
struct QSASConfigStruct;
typedef struct QSASConfigStruct QSASConfig;
// externally accessible functions
QSASTIMEDLLIMPEXP void configqsas( double scale, double offset1, double offset2, int ccontrol, int ifbtime_offset, int year, int month, int day, int hour, int min, double sec, QSASConfig **qsasconfig );
QSASTIMEDLLIMPEXP void closeqsas( QSASConfig **qsasconfig );
QSASTIMEDLLIMPEXP int ctimeqsas( int year, int month, int day, int hour, int min, double sec, double * ctime, QSASConfig *qsasconfig );
QSASTIMEDLLIMPEXP void btimeqsas( int *year, int *month, int *day, int *hour, int *min, double *sec, double ctime, QSASConfig *qsasconfig );
QSASTIMEDLLIMPEXP size_t strfqsas( char * buf, size_t len, const char *format, double ctime, QSASConfig *qsasconfig );
#endif
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