1 files changed, 95 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/tm/tmzone.c b/usr/src/lib/libast/common/tm/tmzone.c
new file mode 100644
index 0000000000..784668d589
--- /dev/null
+++ b/usr/src/lib/libast/common/tm/tmzone.c
@@ -0,0 +1,95 @@
+/***********************************************************************
+*                                                                      *
+*               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 Research
+ *
+ * time conversion support
+ */
+
+#include <ast.h>
+#include <tm.h>
+
+/*
+ * return timezone pointer given name and type
+ *
+ * if type==0 then all time zone types match
+ * otherwise type must be one of tm_info.zone[].type
+ *
+ * if end is non-null then it will point to the next
+ * unmatched char in name
+ *
+ * if dst!=0 then it will point to 0 for standard zones
+ * and the offset for daylight zones
+ *
+ * 0 returned for no match
+ */
+
+Tm_zone_t*
+tmzone(register const char* name, char** end, const char* type, int* dst)
+{
+	register Tm_zone_t*	zp;
+	register char*		prev;
+	char*			e;
+
+	static Tm_zone_t	fixed;
+	static char		off[16];
+
+	tmset(tm_info.zone);
+	if ((*name == '+' || *name == '-') && (fixed.west = tmgoff(name, &e, TM_LOCALZONE)) != TM_LOCALZONE && !*e)
+	{
+		fixed.standard = fixed.daylight = strncpy(off, name, sizeof(off) - 1);
+		if (end)
+			*end = e;
+		if (dst)
+			*dst = 0;
+		return &fixed;
+	}
+	zp = tm_info.local;
+	prev = 0;
+	do
+	{
+		if (zp->type)
+			prev = zp->type;
+		if (!type || type == prev || !prev)
+		{
+			if (tmword(name, end, zp->standard, NiL, 0))
+			{
+				if (dst)
+					*dst = 0;
+				return zp;
+			}
+			if (zp->dst && zp->daylight && tmword(name, end, zp->daylight, NiL, 0))
+			{
+				if (dst)
+					*dst = zp->dst;
+				return zp;
+			}
+		}
+		if (zp == tm_info.local)
+			zp = tm_data.zone;
+		else
+			zp++;
+	} while (zp->standard);
+	return 0;
+}