lsx: detect read errors

1 files changed, 9 insertions, 7 deletions

diff --git a/lsx.c b/lsx.c
index 57c03bf..cb016cf 100644
--- a/lsx.c
+++ b/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>
@@ -28,14 +29,15 @@ lsx(const char *dir) {
         struct stat st;
         DIR *dp;
 
-        if(!(dp = opendir(dir))) {
+        for(dp = opendir(dir); dp && (d = readdir(dp)); errno = 0)
+                if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf
+                && access(buf, X_OK) == 0 && stat(buf, &st) == 0 && S_ISREG(st.st_mode))
+                        puts(d->d_name);
+
+        if(errno != 0) {
                 status = EXIT_FAILURE;
                 perror(dir);
-                return;
         }
-        while((d = readdir(dp)))
-                if(snprintf(buf, sizeof buf, "%s/%s", dir, d->d_name) < (int)sizeof buf
-                && stat(buf, &st) == 0 && S_ISREG(st.st_mode) && access(buf, X_OK) == 0)
-                        puts(d->d_name);
-        closedir(dp);
+        if(dp)
+                closedir(dp);
 }