1 files changed, 107 insertions, 0 deletions
diff --git a/src/crypto/directory_posix.c b/src/crypto/directory_posix.c
new file mode 100644
index 0000000..c16701d
--- /dev/null
+++ b/src/crypto/directory_posix.c
@@ -0,0 +1,107 @@
+/* $LP: LPlib/source/LPdir_unix.c,v 1.11 2004/09/23 22:07:22 _cvs_levitte Exp $ */
+/*
+ * Copyright (c) 2004, Richard Levitte <richard@levitte.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
+
+#if !defined(_POSIX_C_SOURCE)
+#define _POSIX_C_SOURCE 201409  /* for readdir_r */
+#endif
+
+#include "directory.h"
+
+
+#if !defined(OPENSSL_WINDOWS)
+
+#include <dirent.h>
+#include <errno.h>
+#include <string.h>
+
+#if defined(OPENSSL_PNACL)
+/* pnacl doesn't include readdir_r! So we do the best we can. */
+int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result) {
+  errno = 0;
+  *result = readdir(dirp);
+  if (*result != NULL) {
+    return 0;
+  }
+  if (errno) {
+    return 1;
+  }
+  return 0;
+}
+#endif
+
+struct OPENSSL_dir_context_st {
+  DIR *dir;
+  struct dirent dirent;
+};
+
+const char *OPENSSL_DIR_read(OPENSSL_DIR_CTX **ctx, const char *directory) {
+  struct dirent *dirent;
+
+  if (ctx == NULL || directory == NULL) {
+    errno = EINVAL;
+    return NULL;
+  }
+
+  errno = 0;
+  if (*ctx == NULL) {
+    *ctx = malloc(sizeof(OPENSSL_DIR_CTX));
+    if (*ctx == NULL) {
+      errno = ENOMEM;
+      return 0;
+    }
+    memset(*ctx, 0, sizeof(OPENSSL_DIR_CTX));
+
+    (*ctx)->dir = opendir(directory);
+    if ((*ctx)->dir == NULL) {
+      int save_errno = errno; /* Probably not needed, but I'm paranoid */
+      free(*ctx);
+      *ctx = NULL;
+      errno = save_errno;
+      return 0;
+    }
+  }
+
+  if (readdir_r((*ctx)->dir, &(*ctx)->dirent, &dirent) != 0 ||
+      dirent == NULL) {
+    return 0;
+  }
+
+  return (*ctx)->dirent.d_name;
+}
+
+int OPENSSL_DIR_end(OPENSSL_DIR_CTX **ctx) {
+  if (ctx != NULL && *ctx != NULL) {
+    int r = closedir((*ctx)->dir);
+    free(*ctx);
+    *ctx = NULL;
+    return r == 0;
+  }
+
+  errno = EINVAL;
+  return 0;
+}
+
+#endif  /* !OPENSSL_WINDOWS */