diff --git a/src/includes/helpers.h b/src/includes/helpers.h
index 1a3e2cfe..44d76552 100644
--- a/src/includes/helpers.h
+++ b/src/includes/helpers.h
@@ -38,7 +38,7 @@
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
 
 #ifdef __GLIBC__
-#  if ! defined (__UCLIBC__) && ! defined (__dietlibc__)
+#  if !defined (__UCLIBC__) && !defined (__dietlibc__)
 #    define strlcpy(dst, src, size) snprintf(dst, size, "%s", src)
 #  endif
 #endif
@@ -85,7 +85,7 @@ _unused static char *xstrdup(const char *str)
 {
 	char *value;
 
-	if (! str)
+	if (!str)
 		return (NULL);
 
 	value = strdup(str);
diff --git a/src/libeinfo/libeinfo.c b/src/libeinfo/libeinfo.c
index cde2ea8e..aa49e0d0 100644
--- a/src/libeinfo/libeinfo.c
+++ b/src/libeinfo/libeinfo.c
@@ -152,7 +152,7 @@ static const char *const color_terms[] = {
 
 /* strlcat and strlcpy are nice, shame glibc does not define them */
 #ifdef __GLIBC__
-#  if ! defined (__UCLIBC__) && ! defined (__dietlibc__)
+#  if !defined (__UCLIBC__) && !defined (__dietlibc__)
 static size_t
 strlcat(char *dst, const char *src, size_t size)
 {
diff --git a/src/librc/librc-daemon.c b/src/librc/librc-daemon.c
index 4abe02fb..ec02e8b7 100644
--- a/src/librc/librc-daemon.c
+++ b/src/librc/librc-daemon.c
@@ -129,7 +129,7 @@ rc_find_pids(const char *exec, const char *const *argv, uid_t uid, pid_t pid)
 	if (exists("/proc/self/status")) {
 		fp = fopen("/proc/self/status", "r");
 		if (fp) {
-			while (! feof(fp)) {
+			while (!feof(fp)) {
 				rc_getline(&line, &len, fp);
 				if (strncmp(line, "envID:\t0", 8) == 0) {
 					openvz_host = true;
@@ -183,12 +183,12 @@ rc_find_pids(const char *exec, const char *const *argv, uid_t uid, pid_t pid)
 			if (exists(buffer)) {
 				fp = fopen(buffer, "r");
 				free(buffer);
-				if (! fp)
+				if (!fp)
 					continue;
-				while (! feof(fp)) {
+				while (!feof(fp)) {
 					rc_getline(&line, &len, fp);
 					if (strncmp(line, "envID:", 6) == 0) {
-						container_pid = ! (strncmp(line, "envID:\t0", 8) == 0);
+						container_pid = !(strncmp(line, "envID:\t0", 8) == 0);
 						break;
 					}
 				}
diff --git a/src/librc/librc-depend.c b/src/librc/librc-depend.c
index f91c2a8b..e240cba0 100644
--- a/src/librc/librc-depend.c
+++ b/src/librc/librc-depend.c
@@ -32,7 +32,7 @@ get_shell_value(char *string)
 	char *p = string;
 	char *e;
 
-	if (! string)
+	if (!string)
 		return NULL;
 
 	if (*p == '\'')
@@ -142,7 +142,7 @@ rc_deptree_load_file(const char *deptree_file)
 		if (strcmp(type, "service") == 0) {
 			/* Sanity */
 			e = get_shell_value(p);
-			if (! e || *e == '\0')
+			if (!e || *e == '\0')
 				continue;
 			depinfo = xmalloc(sizeof(*depinfo));
 			TAILQ_INIT(&depinfo->depends);
@@ -493,7 +493,7 @@ rc_deptree_order(const RC_DEPTREE *deptree, const char *runlevel, int options)
 	RC_STRINGLIST *services;
 
 	bootlevel = getenv("RC_BOOTLEVEL");
-	if (! bootlevel)
+	if (!bootlevel)
 		bootlevel = RC_LEVEL_BOOT;
 
 	/* When shutting down, list all running services */
diff --git a/src/librc/librc-misc.c b/src/librc/librc-misc.c
index c625a379..b0edb942 100644
--- a/src/librc/librc-misc.c
+++ b/src/librc/librc-misc.c
@@ -210,11 +210,11 @@ static void rc_config_set_value(RC_STRINGLIST *config, char *value)
 	bool replaced;
 	char *token;
 
-	if (! p)
+	if (!p)
 		return;
 	if (strncmp(p, "export ", 7) == 0)
 		p += 7;
-	if (! (token = strsep(&p, "=")))
+	if (!(token = strsep(&p, "=")))
 		return;
 
 	entry = xstrdup(token);
@@ -338,7 +338,7 @@ static RC_STRINGLIST * rc_config_directory(RC_STRINGLIST *config)
 		if (rc_conf_d_files) {
 			rc_stringlist_sort(&rc_conf_d_files);
 			TAILQ_FOREACH(fname, rc_conf_d_files, entries) {
-				if (! fname->value)
+				if (!fname->value)
 					continue;
 				sprintf(path, "%s/%s", RC_CONF_D, fname->value);
 				rc_conf_d_list = rc_config_list(path);
@@ -405,7 +405,7 @@ rc_conf_value(const char *setting)
 	RC_STRING *s;
 	char *p;
 
-	if (! rc_conf) {
+	if (!rc_conf) {
 		rc_conf = rc_config_load(RC_CONF);
 		atexit(_free_rc_conf);
 
diff --git a/src/librc/librc.c b/src/librc/librc.c
index 453bd005..8fad0fa7 100644
--- a/src/librc/librc.c
+++ b/src/librc/librc.c
@@ -538,10 +538,10 @@ rc_service_resolve(const char *service)
 
 	/* First check started services */
 	snprintf(file, sizeof(file), RC_SVCDIR "/%s/%s", "started", service);
-	if (lstat(file, &buf) || ! S_ISLNK(buf.st_mode)) {
+	if (lstat(file, &buf) || !S_ISLNK(buf.st_mode)) {
 		snprintf(file, sizeof(file), RC_SVCDIR "/%s/%s",
 		    "inactive", service);
-		if (lstat(file, &buf) || ! S_ISLNK(buf.st_mode))
+		if (lstat(file, &buf) || !S_ISLNK(buf.st_mode))
 			*file = '\0';
 	}
 
@@ -742,7 +742,7 @@ rc_service_mark(const char *service, const RC_SERVICE state)
 			s != RC_SERVICE_STOPPED &&
 			s != RC_SERVICE_HOTPLUGGED &&
 			s != RC_SERVICE_SCHEDULED) &&
-		    (! skip_wasinactive || s != RC_SERVICE_WASINACTIVE))
+		    (!skip_wasinactive || s != RC_SERVICE_WASINACTIVE))
 		{
 			snprintf(file, sizeof(file), RC_SVCDIR "/%s/%s",
 			    rc_service_state_names[i].name, base);
@@ -901,7 +901,7 @@ rc_service_schedule_start(const char *service, const char *service_to_start)
 	bool retval;
 
 	/* service may be a provided service, like net */
-	if (! service || ! rc_service_exists(service_to_start))
+	if (!service || !rc_service_exists(service_to_start))
 		return false;
 
 	p += snprintf(file, sizeof(file), RC_SVCDIR "/scheduled/%s",
@@ -1000,7 +1000,7 @@ rc_services_in_state(RC_SERVICE state)
 
 	dirs = ls_dir(dir, 0);
 	list = rc_stringlist_new();
-	if (! dirs)
+	if (!dirs)
 		return list;
 
 	TAILQ_FOREACH(d, dirs, entries) {
diff --git a/src/rc/do_e.c b/src/rc/do_e.c
index fb109501..1778efe4 100644
--- a/src/rc/do_e.c
+++ b/src/rc/do_e.c
@@ -43,7 +43,7 @@ static int syslog_decode(char *name, const CODE *codetab)
 		return atoi(name);
 
 	for (c = codetab; c->c_name; c++)
-		if (! strcasecmp(name, c->c_name))
+		if (!strcasecmp(name, c->c_name))
 			return c->c_val;
 
 	return -1;
diff --git a/src/rc/do_value.c b/src/rc/do_value.c
index 2758b8e8..9ec5facf 100644
--- a/src/rc/do_value.c
+++ b/src/rc/do_value.c
@@ -43,7 +43,7 @@ int main(int argc, char **argv)
 	if (service == NULL)
 		eerrorx("%s: no service specified", applet);
 
-	if (argc < 2 || ! argv[1] || *argv[1] == '\0')
+	if (argc < 2 || !argv[1] || *argv[1] == '\0')
 		eerrorx("%s: no option specified", applet);
 
 	if (strcmp(applet, "service_get_value") == 0 ||
diff --git a/src/rc/kill_all.c b/src/rc/kill_all.c
index d80df19e..551572b7 100644
--- a/src/rc/kill_all.c
+++ b/src/rc/kill_all.c
@@ -78,7 +78,7 @@ static int mount_proc(void)
 				syslog(LOG_ERR, "mount returned non-zero exit status");
 			break;
 	}
-	if (! exists("/proc/version")) {
+	if (!exists("/proc/version")) {
 		syslog(LOG_ERR, "Could not mount /proc");
 		return -1;
 	}
@@ -113,7 +113,7 @@ static bool is_user_process(pid_t pid)
 			continue;
 		}
 		temp_pid = -1;
-		while (! feof(fp)) {
+		while (!feof(fp)) {
 			buf = NULL;
 			if (getline(&buf, &size, fp) != -1) {
 				sscanf(buf, "PPid: %d", &temp_pid);
diff --git a/src/rc/mountinfo.c b/src/rc/mountinfo.c
index 8cb2945f..6652760d 100644
--- a/src/rc/mountinfo.c
+++ b/src/rc/mountinfo.c
@@ -161,7 +161,7 @@ process_mount(RC_STRINGLIST *list, struct args *args,
 		TAILQ_FOREACH(s, args->mounts, entries)
 		    if (strcmp(s->value, to) == 0)
 			    break;
-		if (! s)
+		if (!s)
 			return -1;
 	}
 
@@ -260,7 +260,7 @@ find_mounts(struct args *args)
 			if (flags & o->o_opt) {
 				if (o->o_opt == MNT_LOCAL)
 					netdev = 1;
-				if (! options)
+				if (!options)
 					options = xstrdup(o->o_name);
 				else {
 					xasprintf(&tmp, "%s,%s", options, o->o_name);
@@ -475,7 +475,7 @@ int main(int argc, char **argv)
 		if (skip_point_regex &&
 		    regexec(skip_point_regex, s->value, 0, NULL, 0) == 0)
 			continue;
-		if (! rc_yesno(getenv("EINFO_QUIET")))
+		if (!rc_yesno(getenv("EINFO_QUIET")))
 			printf("%s\n", s->value);
 		result = EXIT_SUCCESS;
 	}
diff --git a/src/rc/openrc-init.c b/src/rc/openrc-init.c
index 7e82c44c..5bc53434 100644
--- a/src/rc/openrc-init.c
+++ b/src/rc/openrc-init.c
@@ -295,7 +295,7 @@ int main(int argc, char **argv)
 	/* set default path */
 	setenv("PATH", path_default, 1);
 
-	if (! reexec)
+	if (!reexec)
 		init(default_runlevel);
 
 	if (mkfifo(RC_INIT_FIFO, 0600) == -1 && errno != EEXIST)
diff --git a/src/rc/rc-logger.c b/src/rc/rc-logger.c
index 1db60959..4b1b9189 100644
--- a/src/rc/rc-logger.c
+++ b/src/rc/rc-logger.c
@@ -94,7 +94,7 @@ write_log(int logfd, const char *buffer, size_t bytes)
 			continue;
 		}
 
-		if (! in_term || isalpha((unsigned char)*p))
+		if (!in_term || isalpha((unsigned char)*p))
 			in_escape = in_term = false;
 cont:
 		p++;
diff --git a/src/rc/rc-misc.c b/src/rc/rc-misc.c
index a252a6c0..99a60fe4 100644
--- a/src/rc/rc-misc.c
+++ b/src/rc/rc-misc.c
@@ -138,7 +138,7 @@ env_config(void)
 	/* Ensure our PATH is prefixed with the system locations first
 	   for a little extra security */
 	path = getenv("PATH");
-	if (! path)
+	if (!path)
 		setenv("PATH", RC_PATH_PREFIX, 1);
 	else if (strncmp (RC_PATH_PREFIX, path, pplen) != 0) {
 		l = strlen(path) + pplen + 3;
@@ -152,7 +152,7 @@ env_config(void)
 			while ((tok = strsep(&npp, ":")))
 				if (strcmp(tok, token) == 0)
 					break;
-			if (! tok)
+			if (!tok)
 				p += snprintf(p, l - (p - e), ":%s", token);
 			free (np);
 		}
@@ -203,7 +203,7 @@ env_config(void)
 		setenv("EINFO_VERBOSE", "YES", 1);
 
 	errno = 0;
-	if ((! rc_conf_yesno("rc_color") && errno == 0) ||
+	if ((!rc_conf_yesno("rc_color") && errno == 0) ||
 	    rc_conf_yesno("rc_nocolor"))
 		setenv("EINFO_COLOR", "NO", 1);
 }
@@ -472,7 +472,7 @@ pid_t get_pid(const char *applet,const char *pidfile)
 	FILE *fp;
 	pid_t pid;
 
-	if (! pidfile)
+	if (!pidfile)
 		return -1;
 
 	if ((fp = fopen(pidfile, "r")) == NULL) {
diff --git a/src/rc/rc-schedules.c b/src/rc/rc-schedules.c
index fdf52f19..5938086d 100644
--- a/src/rc/rc-schedules.c
+++ b/src/rc/rc-schedules.c
@@ -279,7 +279,7 @@ int do_stop(const char *applet, const char *exec, const char *const *argv,
 			errno = 0;
 			killed = (kill(pi->pid, sig) == 0 ||
 			    errno == ESRCH ? true : false);
-			if (! quiet)
+			if (!quiet)
 				eendv(killed ? 0 : 1,
 				"%s: failed to send signal %d to PID %d: %s",
 				applet, sig, pi->pid, strerror(errno));
@@ -422,7 +422,7 @@ int run_stop_schedule(const char *applet,
 
 	if (progressed)
 		printf("\n");
-	if (! quiet) {
+	if (!quiet) {
 		if (nrunning == 1)
 			eerror("%s: %d process refused to stop", applet, nrunning);
 		else
diff --git a/src/rc/rc-service.c b/src/rc/rc-service.c
index 85bccd17..44651cc6 100644
--- a/src/rc/rc-service.c
+++ b/src/rc/rc-service.c
@@ -154,15 +154,15 @@ int main(int argc, char **argv)
 		eerrorx("%s: service `%s' does not exist", applet, *argv);
 	}
 	state = rc_service_state(*argv);
-	if (if_crashed &&  ! (rc_service_daemons_crashed(*argv) && errno != EACCES))
+	if (if_crashed &&  !(rc_service_daemons_crashed(*argv) && errno != EACCES))
 		return 0;
-	if (if_inactive && ! (state & RC_SERVICE_INACTIVE))
+	if (if_inactive && !(state & RC_SERVICE_INACTIVE))
 		return 0;
 	if (if_notstarted && (state & RC_SERVICE_STARTED))
 		return 0;
-	if (if_started && ! (state & RC_SERVICE_STARTED))
+	if (if_started && !(state & RC_SERVICE_STARTED))
 		return 0;
-	if (if_stopped && ! (state & RC_SERVICE_STOPPED))
+	if (if_stopped && !(state & RC_SERVICE_STOPPED))
 		return 0;
 	*argv = service;
 	execv(*argv, argv);
diff --git a/src/rc/rc-status.c b/src/rc/rc-status.c
index 5f80f242..7eb152ec 100644
--- a/src/rc/rc-status.c
+++ b/src/rc/rc-status.c
@@ -412,7 +412,7 @@ int main(int argc, char **argv)
 			state = rc_service_state(s->value);
 			if ((rc_stringlist_find(sservices, s->value) ||
 			    (state & ( RC_SERVICE_STOPPED | RC_SERVICE_HOTPLUGGED)))) {
-				if (! (state & RC_SERVICE_FAILED)) {
+				if (!(state & RC_SERVICE_FAILED)) {
 					TAILQ_REMOVE(services, s, entries);
 					free(s->value);
 					free(s);
diff --git a/src/rc/shell_var.c b/src/rc/shell_var.c
index 218a2faf..70750245 100644
--- a/src/rc/shell_var.c
+++ b/src/rc/shell_var.c
@@ -31,7 +31,7 @@ int main(int argc, char **argv)
 			putchar(' ');
 		while (*p) {
 			c = (unsigned char)*p++;
-			if (! isalnum(c))
+			if (!isalnum(c))
 				c = '_';
 			putchar(c);
 		}
diff --git a/src/rc/start-stop-daemon.c b/src/rc/start-stop-daemon.c
index 47ecea10..656ae9fa 100644
--- a/src/rc/start-stop-daemon.c
+++ b/src/rc/start-stop-daemon.c
@@ -800,7 +800,7 @@ int main(int argc, char **argv)
 
 		if (makepidfile && pidfile) {
 			fp = fopen(pidfile, "w");
-			if (! fp)
+			if (!fp)
 				eerrorx("%s: fopen `%s': %s", applet, pidfile,
 				    strerror(errno));
 			fprintf(fp, "%d\n", mypid);
diff --git a/src/rc/supervise-daemon.c b/src/rc/supervise-daemon.c
index 9a3d5111..49b09c04 100644
--- a/src/rc/supervise-daemon.c
+++ b/src/rc/supervise-daemon.c
@@ -1037,7 +1037,7 @@ int main(int argc, char **argv)
 
 		/* Make sure we can write a pid file */
 		fp = fopen(pidfile, "w");
-		if (! fp)
+		if (!fp)
 			eerrorx("%s: fopen `%s': %s", applet, pidfile, strerror(errno));
 		fclose(fp);