Supports scandir()

CMakeLists.txt

@@ -1,8 +1,18 @@
 cmake_minimum_required (VERSION 2.8.11)
 project (dirent LANGUAGES C)
 
+# Initialize C compiler only (don't require C++ compiler)
 enable_language (C)
 
+# Compile in debug mode by default
+if (NOT CMAKE_BUILD_TYPE)
+    set (CMAKE_BUILD_TYPE Debug
+        CACHE STRING
+        "Type of build: None Debug Release RelWithDebInfo MinSizeRel."
+        FORCE
+    )
+endif (NOT CMAKE_BUILD_TYPE)
+
 # Only use the dirent file on windows systems
 if (WIN32)
     include_directories (${CMAKE_SOURCE_DIR}/include)
@@ -23,6 +33,7 @@ add_executable (find examples/find.c)
 add_executable (ls examples/ls.c)
 add_executable (locate examples/locate.c)
 add_executable (updatedb examples/updatedb.c)
+add_executable (scandir examples/scandir.c)
 
 # Build test programs
 include (CTest)
@@ -35,4 +46,5 @@ endfunction (add_test_executable)
 
 add_test_executable (t-compile tests/t-compile.c)
 add_test_executable (t-dirent tests/t-dirent.c)
+add_test_executable (t-scandir tests/t-scandir.c)
 

examples/locate.c

@@ -104,7 +104,7 @@ db_locate(
 
     /* Open locate.db for read */
     db_open ();
-    
+
     /* Read one directory and file name at a time from database file */
     while (db_read (buffer, PATH_MAX)) {
         /* See if file name in buffer matches the search pattern */

examples/ls.c

@@ -1,4 +1,4 @@
-/* 
+/*
  * An example demonstrating basic directory listing.
  *
  * Compile this file with Visual Studio and run the produced command in
@@ -62,7 +62,7 @@ list_directory(
 {
     DIR *dir;
     struct dirent *ent;
-                
+
     /* Open directory stream */
     dir = opendir (dirname);
     if (dir != NULL) {

examples/scandir.c

@@ -0,0 +1,105 @@
+/*
+ * Example program demonstrating the use of scandir function.
+ *
+ * Compile this file with Visual Studio and run the produced command in
+ * console with a directory name argument.  For example, command
+ *
+ *     scandir "c:\Program Files"
+ *
+ * might output something like
+ *
+ *     ./
+ *     ../
+ *     7-Zip/
+ *     Internet Explorer/
+ *     Microsoft Visual Studio 9.0/
+ *     Microsoft.NET/
+ *     Mozilla Firefox/
+ *
+ * Copyright (C) 2006-2012 Toni Ronkko
+ * This file is part of dirent.  Dirent may be freely distributed
+ * under the MIT license.  For all details and documentation, see
+ * https://github.com/tronkko/dirent
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+
+static void list_directory (const char *dirname);
+
+
+int
+main(
+    int argc, char *argv[]) 
+{
+    int i;
+
+    /* For each directory in command line */
+    i = 1;
+    while (i < argc) {
+        list_directory (argv[i]);
+        i++;
+    }
+
+    /* List current working directory if no arguments on command line */
+    if (argc == 1) {
+        list_directory (".");
+    }
+    return EXIT_SUCCESS;
+}
+
+/*
+ * List files and directories within a directory.
+ */
+static void
+list_directory(
+    const char *dirname)
+{
+    struct dirent **files;
+    int i;
+    int n;
+
+    /* Scan files in directory */
+    n = scandir (dirname, &files, NULL, alphasort);
+    if (n >= 0) {
+
+        /* Loop through file names */
+        for (i = 0; i < n; i++) {
+            struct dirent *ent;
+
+            /* Get pointer to file entry */
+            ent = files[i];
+
+            /* Output file name */
+            switch (ent->d_type) {
+            case DT_REG:
+                printf ("%s\n", ent->d_name);
+                break;
+
+            case DT_DIR:
+                printf ("%s/\n", ent->d_name);
+                break;
+
+            case DT_LNK:
+                printf ("%s@\n", ent->d_name);
+                break;
+
+            default:
+                printf ("%s*\n", ent->d_name);
+            }
+
+        }
+
+        /* Release file names */
+        for (i = 0; i < n; i++) {
+            free (files[i]);
+        }
+        free (files);
+
+    } else {
+        printf ("Cannot open directory %s\n", dirname);
+    }
+}
+
+