From 0718aa00f172e3a90bf09ebeba2e1239d830b8cc Mon Sep 17 00:00:00 2001 From: Hummer12007 Date: Sat, 7 Jan 2017 19:55:19 +0200 Subject: Support delta sign in prefix --- brightnessctl.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'brightnessctl.c') diff --git a/brightnessctl.c b/brightnessctl.c index 3810267..095bfe6 100644 --- a/brightnessctl.c +++ b/brightnessctl.c @@ -210,6 +210,13 @@ int parse_value(struct value *val, char *str) { char c; char *buf; errno = 0; + if (!str || !*str) + return -1; + if (*str == '+' || *str == '-') { + val->sign = *str == '+' ? PLUS : MINUS; + val->d_type = DELTA; + str++; + } n = strtol(str, &buf, 10); if (errno || buf == str) return -1; -- cgit v1.2.3