merge lsx -> default

lsx.c

@@ -1,5 +1,6 @@
 /* See LICENSE file for copyright and license details. */
 #include <dirent.h>
+#include <errno.h>
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -8,6 +9,8 @@
 
 static void lsx(const char *dir);
 
+static int status = EXIT_SUCCESS;
+
 int
 main(int argc, char *argv[]) {
 	int i;
@@ -16,7 +19,7 @@ main(int argc, char *argv[]) {
 		lsx(".");
 	else for(i = 1; i < argc; i++)
 		lsx(argv[i]);
-	return EXIT_SUCCESS;
+	return status;
 }
 
 void
@@ -26,13 +29,15 @@ lsx(const char *dir) {
 	struct stat st;
 	DIR *dp;
 
-	if(!(dp = opendir(dir))) {
-		perror(dir);
-		return;
-	}
-	while((d = readdir(dp)))
+	for(dp = opendir(dir); dp && (d = readdir(dp)); errno = 0)
 		if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf
-		&& !stat(buf, &st) && S_ISREG(st.st_mode) && access(buf, X_OK) == 0)
+		&& access(buf, X_OK) == 0 && stat(buf, &st) == 0 && S_ISREG(st.st_mode))
 			puts(d->d_name);
-	closedir(dp);
+
+	if(errno != 0) {
+		status = EXIT_FAILURE;
+		perror(dir);
+	}
+	if(dp)
+		closedir(dp);
 }