all: Remove unused longindex parameter to getopt_long()

All tools (except mausezahn) use getopt_long() and pass a pointer to a
local opt_index variable for the longindex parameter. However, this
variable is never read afterwards.

According to getopt(3) it's perfectly fine to pass NULL as the longindex
parameter instead, so do that.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 2 insertions, 2 deletions

diff --git a/ifpps.c b/ifpps.c
index df6fe42..55c247b 100644
--- a/ifpps.c
+++ b/ifpps.c
@@ -1338,7 +1338,7 @@ static int term_main(const char *ifname, uint64_t ms_interval,
 int main(int argc, char **argv)
 {
 	short ifflags = 0;
-	int c, opt_index, ret, promisc = 0;
+	int c, ret, promisc = 0;
 	unsigned int cpus, top_cpus = 5;
 	uint64_t interval = 1000;
 	char *ifname = NULL;
@@ -1354,7 +1354,7 @@ int main(int argc, char **argv)
 	setfsgid(getgid());
 
 	while ((c = getopt_long(argc, argv, short_options, long_options,
-	       &opt_index)) != EOF) {
+				NULL)) != EOF) {
 		switch (c) {
 		case 'h':
 			help();