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, 3 insertions, 3 deletions

diff --git a/bpfc.c b/bpfc.c
index a45bc98..bf14147 100644
--- a/bpfc.c
+++ b/bpfc.c
@@ -82,7 +82,7 @@ static void __noreturn version(void)
 
 int main(int argc, char **argv)
 {
-	int ret, verbose = 0, c, opt_index, bypass = 0, format = 0;
+	int ret, verbose = 0, c, bypass = 0, format = 0;
 	bool invoke_cpp = false;
 	char **cpp_argv = NULL;
 	size_t cpp_argc = 0;
@@ -94,8 +94,8 @@ int main(int argc, char **argv)
 	if (argc == 1)
 		help();
 
-	while ((c = getopt_long(argc, argv, short_options,
-			        long_options, &opt_index)) != EOF) {
+	while ((c = getopt_long(argc, argv, short_options, long_options,
+				NULL)) != EOF) {
 		switch (c) {
 		case 'h':
 			help();