From 878307e96099b0b4373635bf4e4a519c8c9da162 Mon Sep 17 00:00:00 2001 From: Karel Zak Date: Tue, 22 Jun 2021 16:16:38 +0200 Subject: [PATCH] swapon: do not use atoi() Addresses: https://github.com/karelzak/util-linux/issues/1358 Signed-off-by: Karel Zak --- sys-utils/swapon.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sys-utils/swapon.c b/sys-utils/swapon.c index da836c47e..ed6be244e 100644 --- a/sys-utils/swapon.c +++ b/sys-utils/swapon.c @@ -722,9 +722,15 @@ static int parse_options(struct swap_prop *props, const char *options) } arg = NULL; - if (mnt_optstr_get_option(options, "pri", &arg, NULL) == 0 && arg) - props->priority = atoi(arg); + if (mnt_optstr_get_option(options, "pri", &arg, &argsz) == 0 && arg) { + char *end = NULL; + int n; + errno = 0; + n = (int) strtol(arg, &end, 10); + if (errno == 0 && end && end > arg) + props->priority = n; + } return 0; }