1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Bell Laboratories 26 * 27 * time conversion support 28 */ 29 30 #include <ast.h> 31 #include <tm.h> 32 33 /* 34 * n is minutes west of UTC 35 * 36 * append p and SHHMM part of n to s 37 * where S is + or - 38 * 39 * n ignored if n==d 40 * end of s is returned 41 */ 42 43 char* 44 tmpoff(register char* s, size_t z, register const char* p, register int n, int d) 45 { 46 register char* e = s + z; 47 48 while (s < e && (*s = *p++)) 49 s++; 50 if (n != d && s < e) 51 { 52 if (n < 0) 53 { 54 n = -n; 55 *s++ = '+'; 56 } 57 else 58 *s++ = '-'; 59 s += sfsprintf(s, e - s, "%02d%02d", n / 60, n % 60); 60 } 61 return s; 62 } 63