From c04dcc2e7d834218ef2d4194331e383402495ae1 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 10 Apr 2024 20:07:22 +0200
Subject: Adding upstream version 2:20.4+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 libdvdread-embedded/msvc/contrib/dirent/dirent.c | 135 +++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 libdvdread-embedded/msvc/contrib/dirent/dirent.c

(limited to 'libdvdread-embedded/msvc/contrib/dirent/dirent.c')

diff --git a/libdvdread-embedded/msvc/contrib/dirent/dirent.c b/libdvdread-embedded/msvc/contrib/dirent/dirent.c
new file mode 100644
index 0000000..0eddd90
--- /dev/null
+++ b/libdvdread-embedded/msvc/contrib/dirent/dirent.c
@@ -0,0 +1,135 @@
+/*
+
+    Implementation of POSIX directory browsing functions and types for Win32.
+
+    Kevlin Henney (mailto:kevlin@acm.org), March 1997.
+
+    Copyright Kevlin Henney, 1997. All rights reserved.
+
+    Permission to use, copy, modify, and distribute this software and its
+    documentation for any purpose is hereby granted without fee, provided
+    that this copyright and permissions notice appear in all copies and
+    derivatives, and that no charge may be made for the software and its
+    documentation except to cover cost of distribution.
+
+    This software is supplied "as is" without express or implied warranty.
+
+    But that said, if there are any problems please get in touch.
+
+*/
+
+#include <dirent.h>
+#include <errno.h>
+#include <io.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef DIR
+
+struct DIR
+{
+    long                handle; /* -1 for failed rewind */
+    struct _finddata_t  info;
+    struct dirent       result; /* d_name null iff first time */
+    char                *name;  /* NTBS */
+};
+
+#endif
+
+DIR *opendir(const char *name)
+{
+    DIR *dir = 0;
+
+    if(name && name[0])
+    {
+        size_t base_length = strlen(name);
+        const char *all = /* the root directory is a special case... */
+            strchr("/\\", name[base_length - 1]) ? "*" : "/*";
+
+        if((dir = malloc(sizeof *dir)) != 0 &&
+           (dir->name = malloc(base_length + strlen(all) + 1)) != 0)
+        {
+            strcat(strcpy(dir->name, name), all);
+
+            if((dir->handle = _findfirst(dir->name, &dir->info)) != -1)
+            {
+                dir->result.d_name = 0;
+            }
+            else /* rollback */
+            {
+                free(dir->name);
+                free(dir);
+                dir = 0;
+            }
+        }
+        else /* rollback */
+        {
+            free(dir);
+            dir   = 0;
+            errno = ENOMEM;
+        }
+    }
+    else
+    {
+        errno = EINVAL;
+    }
+
+    return dir;
+}
+
+int closedir(DIR *dir)
+{
+    int result = -1;
+
+    if(dir)
+    {
+        if(dir->handle != -1)
+        {
+            result = _findclose(dir->handle);
+        }
+
+        free(dir->name);
+        free(dir);
+    }
+
+    if(result == -1) /* map all errors to EBADF */
+    {
+        errno = EBADF;
+    }
+
+    return result;
+}
+
+struct dirent *readdir(DIR *dir)
+{
+    struct dirent *result = 0;
+
+    if(dir && dir->handle != -1)
+    {
+        if(!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1)
+        {
+            result         = &dir->result;
+            result->d_name = dir->info.name;
+        }
+    }
+    else
+    {
+        errno = EBADF;
+    }
+
+    return result;
+}
+
+void rewinddir(DIR *dir)
+{
+    if(dir && dir->handle != -1)
+    {
+        _findclose(dir->handle);
+        dir->handle = _findfirst(dir->name, &dir->info);
+        dir->result.d_name = 0;
+    }
+    else
+    {
+        errno = EBADF;
+    }
+}
-- 
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