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authorLennart Poettering <lennart@poettering.net>2018-07-02 18:50:25 +0200
committerLennart Poettering <lennart@poettering.net>2018-07-25 16:14:45 +0200
commit8cbc92d5975b603002c3141364a7709a9c66e23a (patch)
tree9feb74f8ed02c860e40d223f504ce321d3e66558 /src/basic/parse-util.c
parentman: document CPUAffinity= in system.conf in more detail (diff)
downloadsystemd-8cbc92d5975b603002c3141364a7709a9c66e23a.tar.xz
systemd-8cbc92d5975b603002c3141364a7709a9c66e23a.zip
parse-util: in parse_permille() check negative earlier
If 'v' is negative, it's wrong to add the decimal to it, as we'd actually need to subtract it in this case. But given that we don't want to allow negative vaues anyway, simply check earlier whether what we have parsed so far was negative, and react to that before adding the decimal to it.
Diffstat (limited to 'src/basic/parse-util.c')
-rw-r--r--src/basic/parse-util.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 6becf85878..db38f91c83 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -637,6 +637,8 @@ int parse_permille_unbounded(const char *p) {
r = safe_atoi(n, &v);
if (r < 0)
return r;
+ if (v < 0)
+ return -ERANGE;
} else {
pc = endswith(p, "%");
if (!pc)
@@ -657,15 +659,14 @@ int parse_permille_unbounded(const char *p) {
r = safe_atoi(n, &v);
if (r < 0)
return r;
+ if (v < 0)
+ return -ERANGE;
if (v > (INT_MAX - q) / 10)
return -ERANGE;
v = v * 10 + q;
}
- if (v < 0)
- return -ERANGE;
-
return v;
}