X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/74fc9186bd338b4b69bb19eea19c1f6dabb4b813..ccd01778c21e2fc83d9b0da282862828d4832757:/buffer.h

diff --git a/buffer.h b/buffer.h
index a2b4efff..d0f354ee 100644
--- a/buffer.h
+++ b/buffer.h
@@ -1,68 +1,86 @@
+/* $OpenBSD: buffer.h,v 1.17 2008/05/08 06:59:01 markus Exp $ */
+
 /*
- *
- * buffer.h
- *
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
- *
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
  *                    All rights reserved
- *
- * Created: Sat Mar 18 04:12:25 1995 ylo
- *
  * Code for manipulating FIFO buffers.
  *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
  */
 
-/* RCSID("$OpenBSD: buffer.h,v 1.5 2000/06/20 01:39:39 markus Exp $"); */
-
 #ifndef BUFFER_H
 #define BUFFER_H
 
 typedef struct {
-	char   *buf;		/* Buffer for data. */
-	unsigned int alloc;	/* Number of bytes allocated for data. */
-	unsigned int offset;	/* Offset of first byte containing data. */
-	unsigned int end;	/* Offset of last byte containing data. */
+	u_char	*buf;		/* Buffer for data. */
+	u_int	 alloc;		/* Number of bytes allocated for data. */
+	u_int	 offset;	/* Offset of first byte containing data. */
+	u_int	 end;		/* Offset of last byte containing data. */
 }       Buffer;
-/* Initializes the buffer structure. */
-void    buffer_init(Buffer * buffer);
 
-/* Frees any memory used for the buffer. */
-void    buffer_free(Buffer * buffer);
+void	 buffer_init(Buffer *);
+void	 buffer_clear(Buffer *);
+void	 buffer_free(Buffer *);
 
-/* Clears any data from the buffer, making it empty.  This does not actually
-   zero the memory. */
-void    buffer_clear(Buffer * buffer);
+u_int	 buffer_len(Buffer *);
+void	*buffer_ptr(Buffer *);
 
-/* Appends data to the buffer, expanding it if necessary. */
-void    buffer_append(Buffer * buffer, const char *data, unsigned int len);
+void	 buffer_append(Buffer *, const void *, u_int);
+void	*buffer_append_space(Buffer *, u_int);
 
-/*
- * Appends space to the buffer, expanding the buffer if necessary. This does
- * not actually copy the data into the buffer, but instead returns a pointer
- * to the allocated region.
- */
-void    buffer_append_space(Buffer * buffer, char **datap, unsigned int len);
+int	 buffer_check_alloc(Buffer *, u_int);
 
-/* Returns the number of bytes of data in the buffer. */
-unsigned int buffer_len(Buffer * buffer);
+void	 buffer_get(Buffer *, void *, u_int);
 
-/* Gets data from the beginning of the buffer. */
-void    buffer_get(Buffer * buffer, char *buf, unsigned int len);
+void	 buffer_consume(Buffer *, u_int);
+void	 buffer_consume_end(Buffer *, u_int);
 
-/* Consumes the given number of bytes from the beginning of the buffer. */
-void    buffer_consume(Buffer * buffer, unsigned int bytes);
+void     buffer_dump(Buffer *);
 
-/* Consumes the given number of bytes from the end of the buffer. */
-void    buffer_consume_end(Buffer * buffer, unsigned int bytes);
+int	 buffer_get_ret(Buffer *, void *, u_int);
+int	 buffer_consume_ret(Buffer *, u_int);
+int	 buffer_consume_end_ret(Buffer *, u_int);
 
-/* Returns a pointer to the first used byte in the buffer. */
-char   *buffer_ptr(Buffer * buffer);
+#include <openssl/bn.h>
 
-/*
- * Dumps the contents of the buffer to stderr in hex.  This intended for
- * debugging purposes only.
- */
-void    buffer_dump(Buffer * buffer);
+void    buffer_put_bignum(Buffer *, const BIGNUM *);
+void    buffer_put_bignum2(Buffer *, const BIGNUM *);
+void	buffer_get_bignum(Buffer *, BIGNUM *);
+void	buffer_get_bignum2(Buffer *, BIGNUM *);
+
+u_short	buffer_get_short(Buffer *);
+void	buffer_put_short(Buffer *, u_short);
+
+u_int	buffer_get_int(Buffer *);
+void    buffer_put_int(Buffer *, u_int);
+
+u_int64_t buffer_get_int64(Buffer *);
+void	buffer_put_int64(Buffer *, u_int64_t);
+
+int     buffer_get_char(Buffer *);
+void    buffer_put_char(Buffer *, int);
+
+void   *buffer_get_string(Buffer *, u_int *);
+void   *buffer_get_string_ptr(Buffer *, u_int *);
+void    buffer_put_string(Buffer *, const void *, u_int);
+void	buffer_put_cstring(Buffer *, const char *);
+
+#define buffer_skip_string(b) \
+    do { u_int l = buffer_get_int(b); buffer_consume(b, l); } while (0)
+
+int	buffer_put_bignum_ret(Buffer *, const BIGNUM *);
+int	buffer_get_bignum_ret(Buffer *, BIGNUM *);
+int	buffer_put_bignum2_ret(Buffer *, const BIGNUM *);
+int	buffer_get_bignum2_ret(Buffer *, BIGNUM *);
+int	buffer_get_short_ret(u_short *, Buffer *);
+int	buffer_get_int_ret(u_int *, Buffer *);
+int	buffer_get_int64_ret(u_int64_t *, Buffer *);
+void	*buffer_get_string_ret(Buffer *, u_int *);
+int	buffer_get_char_ret(char *, Buffer *);
 
 #endif				/* BUFFER_H */