Declare file local functions static

lib/nss.c

@@ -29,7 +29,7 @@ bool nss_is_initialized() {
 	return atomic_load(&nss_init_completed);
 }
 
-void nss_exit() {
+static void nss_exit() {
 	if (nss_is_initialized() && subid_nss) {
 		dlclose(subid_nss->handle);
 		free(subid_nss);

src/free_subid_range.c

@@ -11,7 +11,7 @@
 
 const char *Prog;
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, "Usage: %s [-g] user start count\n", Prog);
 	fprintf(stderr, "    Release a user's subuid (or with -g, subgid) range\n");

src/get_subid_owners.c

@@ -8,7 +8,7 @@
 
 const char *Prog;
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, "Usage: [-g] %s subuid\n", Prog);
 	fprintf(stderr, "    list uids who own the given subuid\n");

src/getsubids.c

@@ -9,7 +9,7 @@
 
 const char *Prog;
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, "Usage: %s [-g] user\n", Prog);
 	fprintf(stderr, "    list subuid ranges for user\n");

src/new_subid_range.c

@@ -11,7 +11,7 @@
 
 const char *Prog;
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, "Usage: %s [-g] [-n] user count\n", Prog);
 	fprintf(stderr, "    Find a subuid (or with -g, subgid) range for user\n");

src/newgidmap.c

@@ -73,7 +73,7 @@ static void usage(void)
 	exit(EXIT_FAILURE);
 }
 
-void write_setgroups(int proc_dir_fd, bool allow_setgroups)
+static void write_setgroups(int proc_dir_fd, bool allow_setgroups)
 {
 	int setgroups_fd;
 	char *policy, policy_buffer[4096];

src/newuidmap.c

@@ -62,7 +62,7 @@ static void verify_ranges(struct passwd *pw, int ranges,
 	}
 }
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, _("usage: %s <pid> <uid> <loweruid> <count> [ <uid> <loweruid> <count> ] ... \n"), Prog);
 	exit(EXIT_FAILURE);