[PATCH iproute2] ifstat: handle unlink return value

[Denis Kirjanov <kirjanov@gmail.com>]

Print an error message if we can't remove the history file

Signed-off-by: Denis Kirjanov <dkirjanov@suse.de>
---
 misc/ifstat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/misc/ifstat.c b/misc/ifstat.c
index 18171a2c..5dede111 100644
--- a/misc/ifstat.c
+++ b/misc/ifstat.c
@@ -938,7 +938,9 @@ int main(int argc, char *argv[])
 				 getuid());
 
 	if (reset_history)
-		unlink(hist_name);
+		if (unlink(hist_name) < 0)
+			fprintf(stderr, "Cannot remove history file \"%s\": %s\n",
+				hist_name, strerror(errno));
 
 	if (!ignore_history || !no_update) {
 		struct stat stb;
-- 
2.30.2