utf8_scandir: Unicode wrapper for scandir()

include/charset.h

@@ -37,6 +37,7 @@ VLC_EXPORT( char *, ToLocale, ( const char * ) );
 VLC_EXPORT( FILE *, utf8_fopen, ( const char *filename, const char *mode ) );
 VLC_EXPORT( void *, utf8_opendir, ( const char *dirname ) );
 VLC_EXPORT( const char *, utf8_readdir, ( void *dir ) );
+VLC_EXPORT( int, utf8_scandir, ( const char *dirname, char ***namelist, int (*select)( const char * ), int (*compar)( const char **, const char ** ) ) );
 VLC_EXPORT( int, utf8_stat, ( const char *filename, void *buf ) );
 VLC_EXPORT( int, utf8_lstat, ( const char *filename, void *buf ) );
 VLC_EXPORT( int, utf8_mkdir, ( const char *filename ) );

include/vlc_symbols.h

@@ -487,6 +487,7 @@ struct module_symbols_t
     char * (*FromUTF16_inner) (const uint16_t *);
     const char * (*IsUTF8_inner) (const char *);
     const char * (*GetFallbackEncoding_inner) (void);
+    int (*utf8_scandir_inner) (const char *dirname, char ***namelist, int (*select)( const char * ), int (*compar)( const char **, const char ** ));
 };
 # if defined (__PLUGIN__)
 #  define aout_FiltersCreatePipeline (p_symbols)->aout_FiltersCreatePipeline_inner
@@ -954,6 +955,7 @@ struct module_symbols_t
 #  define FromUTF16 (p_symbols)->FromUTF16_inner
 #  define IsUTF8 (p_symbols)->IsUTF8_inner
 #  define GetFallbackEncoding (p_symbols)->GetFallbackEncoding_inner
+#  define utf8_scandir (p_symbols)->utf8_scandir_inner
 # elif defined (HAVE_DYNAMIC_PLUGINS) && !defined (__BUILTIN__)
 /******************************************************************
  * STORE_SYMBOLS: store VLC APIs into p_symbols for plugin access.
@@ -1424,6 +1426,7 @@ struct module_symbols_t
     ((p_symbols)->FromUTF16_inner) = FromUTF16; \
     ((p_symbols)->IsUTF8_inner) = IsUTF8; \
     ((p_symbols)->GetFallbackEncoding_inner) = GetFallbackEncoding; \
+    ((p_symbols)->utf8_scandir_inner) = utf8_scandir; \
     (p_symbols)->net_ConvertIPv4_deprecated = NULL; \
     (p_symbols)->__stats_CounterGet_deprecated = NULL; \
     (p_symbols)->__stats_TimerDumpAll_deprecated = NULL; \

src/misc/unicode.c

@@ -34,6 +34,7 @@
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <sys/types.h>
 #ifdef HAVE_DIRENT_H
@@ -420,6 +421,66 @@ const char *utf8_readdir( void *dir )
     return FromLocale( ent->d_name );
 }
 
+static int dummy_select( const char *str )
+{
+    (void)str;
+    return 1;
+}
+
+int utf8_scandir( const char *dirname, char ***namelist,
+                  int (*select)( const char * ),
+                  int (*compar)( const char **, const char ** ) )
+{
+    DIR *dir = utf8_opendir( dirname );
+
+    if( select == NULL )
+        select = dummy_select;
+
+    if( dir == NULL )
+        return -1;
+    else
+    {
+        char **tab = NULL;
+        const char *entry;
+        unsigned num = 0;
+
+        while( ( entry = utf8_readdir( dir ) ) != NULL )
+        {
+            char **newtab;
+            char *utf_entry = strdup( entry );
+            LocaleFree( entry );
+            if( utf_entry == NULL )
+                goto error;
+
+            if( !select( utf_entry ) )
+                continue;
+
+            newtab = realloc( tab, sizeof( char * ) * (num + 1) );
+            if( newtab == NULL )
+                goto error;
+            tab = newtab;
+            tab[num++] = utf_entry;
+        }
+        closedir( dir );
+
+        if( compar != NULL )
+            qsort( tab, num, sizeof( tab[0] ),
+                   (int (*)( const void *, const void *))compar );
+
+        *namelist = tab;
+        return num;
+
+    error:{
+        unsigned i;
+
+        for( i = 0; i < num; i++ )
+            free( tab[i] );
+        if( tab != NULL )
+            free( tab );
+        return -1;}
+    }
+}
+
 
 static int utf8_statEx( const char *filename, void *buf,
                         vlc_bool_t deref )