1 files changed, 64 insertions, 0 deletions
diff --git a/common/membuf.h b/common/membuf.h
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+++ b/common/membuf.h
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+/* membuf.h - A simple implementation of a dynamic buffer
+ *	Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of either
+ *
+ *   - the GNU Lesser General Public License as published by the Free
+ *     Software Foundation; either version 3 of the License, or (at
+ *     your option) any later version.
+ *
+ * or
+ *
+ *   - the GNU General Public License as published by the Free
+ *     Software Foundation; either version 2 of the License, or (at
+ *     your option) any later version.
+ *
+ * or both in parallel, as here.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GNUPG_COMMON_MEMBUF_H
+#define GNUPG_COMMON_MEMBUF_H
+
+#include "mischelp.h"
+
+/* The definition of the structure is private, we only need it here,
+   so it can be allocated on the stack. */
+struct private_membuf_s
+{
+  size_t len;
+  size_t size;
+  char *buf;
+  int out_of_core;
+};
+
+typedef struct private_membuf_s membuf_t;
+
+/* Return the current length of the membuf.  */
+#define get_membuf_len(a)  ((a)->len)
+#define is_membuf_ready(a) ((a)->buf || (a)->out_of_core)
+#define MEMBUF_ZERO        { 0, 0, NULL, 0}
+
+void init_membuf (membuf_t *mb, int initiallen);
+void init_membuf_secure (membuf_t *mb, int initiallen);
+void clear_membuf (membuf_t *mb, size_t amount);
+void put_membuf  (membuf_t *mb, const void *buf, size_t len);
+gpg_error_t put_membuf_cb (void *opaque, const void *buf, size_t len);
+void put_membuf_str (membuf_t *mb, const char *string);
+void put_membuf_printf (membuf_t *mb, const char *format,
+                        ...) GPGRT_ATTR_PRINTF(2,3);
+void *get_membuf (membuf_t *mb, size_t *len);
+void *get_membuf_shrink (membuf_t *mb, size_t *len);
+const void *peek_membuf (membuf_t *mb, size_t *len);
+
+#endif /*GNUPG_COMMON_MEMBUF_H*/