From 41bf0590cc89438f1d319465190b1c00809c78fe Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 5 Aug 2016 11:17:08 +0200
Subject: util-lib: unify parsing of nice level values

This adds parse_nice() that parses a nice level and ensures it is in the right
range, via a new nice_is_valid() helper. It then ports over a number of users
to this.

No functional changes.
---
 src/basic/parse-util.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'src/basic/parse-util.c')

diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 11849ade0b..c98815b9bc 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -29,6 +29,7 @@
 #include "extract-word.h"
 #include "macro.h"
 #include "parse-util.h"
+#include "process-util.h"
 #include "string-util.h"
 
 int parse_boolean(const char *v) {
@@ -551,10 +552,25 @@ int parse_percent_unbounded(const char *p) {
 }
 
 int parse_percent(const char *p) {
-        int v = parse_percent_unbounded(p);
+        int v;
 
+        v = parse_percent_unbounded(p);
         if (v > 100)
                 return -ERANGE;
 
         return v;
 }
+
+int parse_nice(const char *p, int *ret) {
+        int n, r;
+
+        r = safe_atoi(p, &n);
+        if (r < 0)
+                return r;
+
+        if (!nice_is_valid(n))
+                return -ERANGE;
+
+        *ret = n;
+        return 0;
+}
-- 
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