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-rw-r--r--sshbuf.h23
1 files changed, 21 insertions, 2 deletions
diff --git a/sshbuf.h b/sshbuf.h
index 7900b82b..1d9d5bb2 100644
--- a/sshbuf.h
+++ b/sshbuf.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshbuf.h,v 1.13 2019/01/21 09:54:11 djm Exp $ */
+/* $OpenBSD: sshbuf.h,v 1.14 2019/07/14 23:32:27 djm Exp $ */
/*
* Copyright (c) 2011 Damien Miller
*
@@ -176,6 +176,26 @@ int sshbuf_put_u32(struct sshbuf *buf, u_int32_t val);
int sshbuf_put_u16(struct sshbuf *buf, u_int16_t val);
int sshbuf_put_u8(struct sshbuf *buf, u_char val);
+/* Functions to peek at the contents of a buffer without modifying it. */
+int sshbuf_peek_u64(const struct sshbuf *buf, size_t offset,
+ u_int64_t *valp);
+int sshbuf_peek_u32(const struct sshbuf *buf, size_t offset,
+ u_int32_t *valp);
+int sshbuf_peek_u16(const struct sshbuf *buf, size_t offset,
+ u_int16_t *valp);
+int sshbuf_peek_u8(const struct sshbuf *buf, size_t offset,
+ u_char *valp);
+
+/*
+ * Functions to poke values into an exisiting buffer (e.g. a length header
+ * to a packet). The destination bytes must already exist in the buffer.
+ */
+int sshbuf_poke_u64(struct sshbuf *buf, size_t offset, u_int64_t val);
+int sshbuf_poke_u32(struct sshbuf *buf, size_t offset, u_int32_t val);
+int sshbuf_poke_u16(struct sshbuf *buf, size_t offset, u_int16_t val);
+int sshbuf_poke_u8(struct sshbuf *buf, size_t offset, u_char val);
+int sshbuf_poke(struct sshbuf *buf, size_t offset, void *v, size_t len);
+
/*
* Functions to extract or store SSH wire encoded strings (u32 len || data)
* The "cstring" variants admit no \0 characters in the string contents.
@@ -202,7 +222,6 @@ int sshbuf_get_string_direct(struct sshbuf *buf, const u_char **valp,
/* Another variant: "peeks" into the buffer without modifying it */
int sshbuf_peek_string_direct(const struct sshbuf *buf, const u_char **valp,
size_t *lenp);
-/* XXX peek_u8 / peek_u32 */
/*
* Functions to extract or store SSH wire encoded bignums and elliptic