diff options
Diffstat (limited to 'usr/src/lib/libast/common/tm/tmpoff.c')
| -rw-r--r-- | usr/src/lib/libast/common/tm/tmpoff.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/tm/tmpoff.c b/usr/src/lib/libast/common/tm/tmpoff.c new file mode 100644 index 0000000000..442568574a --- /dev/null +++ b/usr/src/lib/libast/common/tm/tmpoff.c @@ -0,0 +1,62 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped +/* + * Glenn Fowler + * AT&T Bell Laboratories + * + * time conversion support + */ + +#include <ast.h> +#include <tm.h> + +/* + * n is minutes west of UTC + * + * append p and SHHMM part of n to s + * where S is + or - + * + * n ignored if n==d + * end of s is returned + */ + +char* +tmpoff(register char* s, size_t z, register const char* p, register int n, int d) +{ + register char* e = s + z; + + while (s < e && (*s = *p++)) + s++; + if (n != d && s < e) + { + if (n < 0) + { + n = -n; + *s++ = '+'; + } + else + *s++ = '-'; + s += sfsprintf(s, e - s, "%02d%02d", n / 60, n % 60); + } + return s; +} |