selinux/*: -Wunused-parameter fixes

runsv: make it NOMMU-capable

function                                             old     new   delta
startservice                                         291     313     +22
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 22/0)               Total: 22 bytes

TODO_config_nommu

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Busybox version: 1.10.0.svn
-# Sat Mar 15 20:36:24 2008
+# Sat Mar 15 22:51:03 2008
 #
 CONFIG_HAVE_DOT_CONFIG=y
 
@@ -29,7 +29,7 @@ CONFIG_FEATURE_PIDFILE=y
 CONFIG_FEATURE_SUID=y
 CONFIG_FEATURE_SUID_CONFIG=y
 CONFIG_FEATURE_SUID_CONFIG_QUIET=y
-# CONFIG_SELINUX is not set
+CONFIG_SELINUX=y
 CONFIG_FEATURE_PREFER_APPLETS=y
 CONFIG_BUSYBOX_EXEC_PATH="/proc/self/exe"
 CONFIG_FEATURE_SYSLOG=y
@@ -356,7 +356,7 @@ CONFIG_FEATURE_FIND_PRUNE=y
 CONFIG_FEATURE_FIND_DELETE=y
 CONFIG_FEATURE_FIND_PATH=y
 CONFIG_FEATURE_FIND_REGEX=y
-# CONFIG_FEATURE_FIND_CONTEXT is not set
+CONFIG_FEATURE_FIND_CONTEXT=y
 CONFIG_GREP=y
 CONFIG_FEATURE_GREP_EGREP_ALIAS=y
 CONFIG_FEATURE_GREP_FGREP_ALIAS=y
@@ -474,8 +474,8 @@ CONFIG_MKFS_MINIX=y
 CONFIG_FEATURE_MINIX2=y
 CONFIG_GETOPT=y
 CONFIG_HEXDUMP=y
-CONFIG_HD=y
 CONFIG_FEATURE_HEXDUMP_REVERSE=y
+CONFIG_HD=y
 CONFIG_HWCLOCK=y
 CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS=y
 CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS=y
@@ -550,7 +550,7 @@ CONFIG_FEATURE_MOUNT_LOOP=y
 # Miscellaneous Utilities
 #
 CONFIG_ADJTIMEX=y
-# CONFIG_BBCONFIG is not set
+CONFIG_BBCONFIG=y
 CONFIG_CHAT=y
 CONFIG_FEATURE_CHAT_NOFAIL=y
 CONFIG_FEATURE_CHAT_TTY_HIFI=y
@@ -745,7 +745,7 @@ CONFIG_PKILL=y
 CONFIG_PS=y
 CONFIG_FEATURE_PS_WIDE=y
 CONFIG_FEATURE_PS_TIME=y
-# CONFIG_FEATURE_PS_UNUSUAL_SYSTEMS is not set
+CONFIG_FEATURE_PS_UNUSUAL_SYSTEMS=y
 CONFIG_RENICE=y
 CONFIG_BB_SYSCTL=y
 CONFIG_TOP=y
@@ -812,7 +812,7 @@ CONFIG_LOGGER=y
 #
 # Runit Utilities
 #
-# CONFIG_RUNSV is not set
+CONFIG_RUNSV=y
 CONFIG_RUNSVDIR=y
 CONFIG_SV=y
 CONFIG_SVLOGD=y
@@ -821,21 +821,25 @@ CONFIG_SETUIDGID=y
 CONFIG_ENVUIDGID=y
 CONFIG_ENVDIR=y
 CONFIG_SOFTLIMIT=y
-# CONFIG_CHCON is not set
-# CONFIG_FEATURE_CHCON_LONG_OPTIONS is not set
-# CONFIG_GETENFORCE is not set
-# CONFIG_GETSEBOOL is not set
-# CONFIG_LOAD_POLICY is not set
-# CONFIG_MATCHPATHCON is not set
-# CONFIG_RESTORECON is not set
-# CONFIG_RUNCON is not set
-# CONFIG_FEATURE_RUNCON_LONG_OPTIONS is not set
-# CONFIG_SELINUXENABLED is not set
-# CONFIG_SETENFORCE is not set
-# CONFIG_SETFILES is not set
-# CONFIG_FEATURE_SETFILES_CHECK_OPTION is not set
-# CONFIG_SETSEBOOL is not set
-# CONFIG_SESTATUS is not set
+
+#
+# Selinux Utilities
+#
+CONFIG_CHCON=y
+CONFIG_FEATURE_CHCON_LONG_OPTIONS=y
+CONFIG_GETENFORCE=y
+CONFIG_GETSEBOOL=y
+CONFIG_LOAD_POLICY=y
+CONFIG_MATCHPATHCON=y
+CONFIG_RESTORECON=y
+CONFIG_RUNCON=y
+CONFIG_FEATURE_RUNCON_LONG_OPTIONS=y
+CONFIG_SELINUXENABLED=y
+CONFIG_SETENFORCE=y
+CONFIG_SETFILES=y
+CONFIG_FEATURE_SETFILES_CHECK_OPTION=y
+CONFIG_SETSEBOOL=y
+CONFIG_SESTATUS=y
 
 #
 # Print Utilities

runit/runsv.c

@@ -256,15 +256,16 @@ static unsigned custom(struct svdir *s, char c)
 
 	if (s->islog) return 0;
 	strcpy(a, "control/?");
-	a[8] = c;
+	a[8] = c; /* replace '?' */
 	if (stat(a, &st) == 0) {
 		if (st.st_mode & S_IXUSR) {
-			pid = fork();
+			pid = vfork();
 			if (pid == -1) {
-				warn_cannot("fork for control/?");
+				warn_cannot("vfork for control/?");
 				return 0;
 			}
 			if (!pid) {
+				/* child */
 				if (haslog && dup2(logpipe.wr, 1) == -1)
 					warn_cannot("setup stdout for control/?");
 				prog[0] = a;
@@ -272,6 +273,7 @@ static unsigned custom(struct svdir *s, char c)
 				execv(a, prog);
 				fatal_cannot("run control/?");
 			}
+			/* parent */
 			while (safe_waitpid(pid, &w, 0) == -1) {
 				warn_cannot("wait for child control/?");
 				return 0;
@@ -318,8 +320,8 @@ static void startservice(struct svdir *s)
 
 	if (s->pid != 0)
 		stopservice(s); /* should never happen */
-	while ((p = fork()) == -1) {
-		warn_cannot("fork, sleeping");
+	while ((p = vfork()) == -1) {
+		warn_cannot("vfork, sleeping");
 		sleep(5);
 	}
 	if (p == 0) {
@@ -344,6 +346,7 @@ static void startservice(struct svdir *s)
 		execvp(*run, run);
 		fatal2_cannot(s->islog ? "start log/" : "start ", *run);
 	}
+	/* parent */
 	if (s->state != S_FINISH) {
 		gettimeofday_ns(&s->start);
 		s->state = S_RUN;

selinux/chcon.c

@@ -28,7 +28,11 @@ static char *type = NULL;
 static char *range = NULL;
 static char *specified_context = NULL;
 
-static int change_filedir_context(const char *fname, struct stat *stbuf, void *userData, int depth)
+static int change_filedir_context(
+		const char *fname,
+		struct stat *stbuf ATTRIBUTE_UNUSED,
+		void *userData ATTRIBUTE_UNUSED,
+		int depth ATTRIBUTE_UNUSED)
 {
 	context_t context = NULL;
 	security_context_t file_context = NULL;
@@ -121,7 +125,7 @@ static const char chcon_longopts[] ALIGN1 =
 #endif
 
 int chcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int chcon_main(int argc, char **argv)
+int chcon_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 	char *reference_file;
 	char *fname;

selinux/getenforce.c

@@ -9,7 +9,7 @@
 #include "libbb.h"
 
 int getenforce_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int getenforce_main(int argc, char **argv)
+int getenforce_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 {
 	int rc;
 

selinux/load_policy.c

@@ -5,7 +5,7 @@
 #include "libbb.h"
 
 int load_policy_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int load_policy_main(int argc, char **argv)
+int load_policy_main(int argc, char **argv ATTRIBUTE_UNUSED)
 {
 	int rc;
 

selinux/matchpathcon.c

@@ -30,7 +30,7 @@ static int print_matchpathcon(char *path, int noprint)
 #define OPT_VERIFY      (1<<4)  /* -V */
 
 int matchpathcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int matchpathcon_main(int argc, char **argv)
+int matchpathcon_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 	int error = 0;
 	unsigned opts;

selinux/runcon.c

@@ -88,7 +88,7 @@ static const char runcon_longopts[] ALIGN1 =
 #define OPTS_CONTEXT_COMPONENT		(OPTS_ROLE | OPTS_TYPE | OPTS_USER | OPTS_RANGE)
 
 int runcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int runcon_main(int argc, char **argv)
+int runcon_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 	char *role = NULL;
 	char *range = NULL;

selinux/selinuxenabled.c

@@ -8,7 +8,7 @@
 #include "libbb.h"
 
 int selinuxenabled_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int selinuxenabled_main(int argc, char **argv)
+int selinuxenabled_main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
 {
 	return !is_selinux_enabled();
 }

selinux/sestatus.c

@@ -159,7 +159,7 @@ static void display_verbose(void)
 }
 
 int sestatus_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int sestatus_main(int argc, char **argv)
+int sestatus_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 	unsigned opts;
 	const char *pol_path;

selinux/setfiles.c

@@ -99,7 +99,7 @@ enum {
 #define FLAG_R               (option_mask32 & OPT_R)
 
 
-static void qprintf(const char *fmt, ...)
+static void qprintf(const char *fmt ATTRIBUTE_UNUSED, ...)
 {
 	/* quiet, do nothing */
 }
@@ -391,8 +391,11 @@ static int restore(const char *file)
  * This function is called by recursive_action on each file during
  * the directory traversal.
  */
-static int apply_spec(const char *file,
-		      struct stat *sb, void *userData, int depth)
+static int apply_spec(
+		const char *file,
+		struct stat *sb,
+		void *userData ATTRIBUTE_UNUSED,
+		int depth ATTRIBUTE_UNUSED)
 {
 	if (!follow_mounts) {
 		/* setfiles does not process across different mount points */