Imported Upstream version 93u+upstream

1 files changed, 62 insertions, 0 deletions

diff --git a/src/lib/libast/tm/tmpoff.c b/src/lib/libast/tm/tmpoff.c
new file mode 100644
index 0000000..0a25704
--- /dev/null
+++ b/src/lib/libast/tm/tmpoff.c
@@ -0,0 +1,62 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              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%s%02d", n / 60, d == -24*60 ? ":" : "", n % 60);
+	}
+	return s;
+}