From 8a3ebab50de301cb294dc75a255eaace72149010 Mon Sep 17 00:00:00 2001
From: "Constantine A. Murenin" <cnst+dfly@bugmail.mojo.ru>
Date: Wed, 10 Feb 2010 20:06:53 -0500
Subject: [PATCH] sysctl(8): support setting acpi temperature in K, C and F

Obtained-from: FreeBSD (sysctl.c#rev1.94)
---
 sbin/sysctl/sysctl.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/sbin/sysctl/sysctl.c b/sbin/sysctl/sysctl.c
index 3e1fdbb94b..f26613f4d9 100644
--- a/sbin/sysctl/sysctl.c
+++ b/sbin/sysctl/sysctl.c
@@ -64,6 +64,7 @@ static void	parse(const char *);
 static int	show_var(int *, size_t);
 static int	sysctl_all(int *, size_t);
 static void	set_T_dev_t(const char *, void **, size_t *);
+static int	set_IK(const char *, int *);
 
 static void
 usage(void)
@@ -206,7 +207,12 @@ parse(const char *string)
 	
 		switch (kind & CTLTYPE) {
 			case CTLTYPE_INT:
-				intval = (int) strtol(newval, NULL, 0);
+				if (!strcmp(fmt, "IK") == 0) {
+					if (!set_IK(newval, &intval))
+						errx(1, "invalid value '%s'",
+						    (char *)newval);
+				} else
+					intval = (int) strtol(newval, NULL, 0);
 				newval = &intval;
 				newsize = sizeof(intval);
 				break;
@@ -528,6 +534,33 @@ set_T_dev_t(const char *path, void **val, size_t *size)
 	*size = sizeof statb.st_rdev;
 }
 
+static int
+set_IK(const char *str, int *val)
+{
+	float temp;
+	int len, kelv;
+	const char *p;
+	char *endptr;
+
+	if ((len = strlen(str)) == 0)
+		return (0);
+	p = &str[len - 1];
+	if (*p == 'C' || *p == 'F') {
+		temp = strtof(str, &endptr);
+		if (endptr == str || endptr != p)
+			return 0;
+		if (*p == 'F')
+			temp = (temp - 32) * 5 / 9;
+		kelv = temp * 10 + 2732;
+	} else {
+		kelv = (int)strtol(str, &endptr, 10);
+		if (endptr == str || *endptr != '\0')
+			return 0;
+	}
+	*val = kelv;
+	return 1;
+}
+
 /*
  * These functions uses a presently undocumented interface to the kernel
  * to walk the tree and get the type so it can print the value.
-- 
2.11.4.GIT