From: Daniel Wagner <dwagner@suse.de>
Date: Fri, 11 Aug 2023 12:24:04 +0000 (+0200)
Subject: util: Set errno to 0 before strtol/stroul call
X-Git-Tag: v2.6~57
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0eda7a67c106e94f682101f2724136df206d8009;p=users%2Fsagi%2Fnvme-cli.git

util: Set errno to 0 before strtol/stroul call

In order to be able to distinguish between success/failure case when
calling strtol/stroul we set errno explicitly to 0.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
---

diff --git a/util/argconfig.c b/util/argconfig.c
index 78f3a6c3..91f49981 100644
--- a/util/argconfig.c
+++ b/util/argconfig.c
@@ -164,6 +164,8 @@ static int argconfig_parse_type(struct argconfig_commandline_options *s, struct
 	char *endptr;
 	int ret = 0;
 
+	errno = 0;    /* To distinguish success/failure after strtol/stroul call */
+
 	switch (s->config_type) {
 	case CFG_STRING:
 		*((char **)value) = optarg;