1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                  David Korn <dgk@research.att.com>                   *
19da2e3ebdSchin *                   Phong Vo <kpv@research.att.com>                    *
20da2e3ebdSchin *                                                                      *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin /*
24da2e3ebdSchin  * Glenn Fowler
25da2e3ebdSchin  * AT&T Bell Laboratories
26da2e3ebdSchin  *
27da2e3ebdSchin  * time conversion support
28da2e3ebdSchin  */
29da2e3ebdSchin 
30da2e3ebdSchin #include <ast.h>
31da2e3ebdSchin #include <tm.h>
32da2e3ebdSchin 
33da2e3ebdSchin /*
34da2e3ebdSchin  * n is minutes west of UTC
35da2e3ebdSchin  *
36da2e3ebdSchin  * append p and SHHMM part of n to s
37da2e3ebdSchin  * where S is + or -
38da2e3ebdSchin  *
39da2e3ebdSchin  * n ignored if n==d
40da2e3ebdSchin  * end of s is returned
41da2e3ebdSchin  */
42da2e3ebdSchin 
43da2e3ebdSchin char*
tmpoff(register char * s,size_t z,register const char * p,register int n,int d)44da2e3ebdSchin tmpoff(register char* s, size_t z, register const char* p, register int n, int d)
45da2e3ebdSchin {
46da2e3ebdSchin 	register char*	e = s + z;
47da2e3ebdSchin 
48da2e3ebdSchin 	while (s < e && (*s = *p++))
49da2e3ebdSchin 		s++;
50da2e3ebdSchin 	if (n != d && s < e)
51da2e3ebdSchin 	{
52da2e3ebdSchin 		if (n < 0)
53da2e3ebdSchin 		{
54da2e3ebdSchin 			n = -n;
55da2e3ebdSchin 			*s++ = '+';
56da2e3ebdSchin 		}
57da2e3ebdSchin 		else
58da2e3ebdSchin 			*s++ = '-';
59*b30d1939SAndy Fiddaman 		s += sfsprintf(s, e - s, "%02d%s%02d", n / 60, d == -24*60 ? ":" : "", n % 60);
60da2e3ebdSchin 	}
61da2e3ebdSchin 	return s;
62da2e3ebdSchin }
63