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upstream: remove legacy buffer API emulation layer; ok djm@ 

OpenBSD-Commit-ID: 2dd5dc17cbc23195be4299fa93be2707a0e08ad9
This commit is contained in:
markus@openbsd.org 2018-07-09 21:56:06 +00:00 committed by Damien Miller
parent 235c7c4e3b
commit cb30cd4704
9 changed files with 6 additions and 649 deletions
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4
Makefile.in
View File

@ -84,7 +84,7 @@ LIBOPENSSH_OBJS=\
${XMSS_OBJS}
LIBSSH_OBJS=${LIBOPENSSH_OBJS} \
authfd.o authfile.o bufaux.o bufbn.o bufec.o buffer.o \
authfd.o authfile.o \
canohost.o channels.o cipher.o cipher-aes.o cipher-aesctr.o \
cipher-ctr.o cleanup.o \
compat.o crc32.o fatal.o hostfile.o \
@ -175,7 +175,7 @@ sshd$(EXEEXT): libssh.a $(LIBCOMPAT) $(SSHDOBJS)
$(LD) -o $@ $(SSHDOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(SSHDLIBS) $(LIBS) $(GSSLIBS) $(K5LIBS)
scp$(EXEEXT): $(LIBCOMPAT) libssh.a scp.o progressmeter.o
$(LD) -o $@ scp.o progressmeter.o bufaux.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
$(LD) -o $@ scp.o progressmeter.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)
ssh-add$(EXEEXT): $(LIBCOMPAT) libssh.a ssh-add.o
$(LD) -o $@ ssh-add.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS)

259
bufaux.c
View File

@ -1,259 +0,0 @@
/* $OpenBSD: bufaux.c,v 1.60 2014/04/30 05:29:56 djm Exp $ */
/*
* Copyright (c) 2012 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
#include "includes.h"
#include <sys/types.h>
#include "buffer.h"
#include "log.h"
#include "ssherr.h"
int
buffer_get_short_ret(u_short *v, Buffer *buffer)
{
int ret;
if ((ret = sshbuf_get_u16(buffer, v)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
u_short
buffer_get_short(Buffer *buffer)
{
u_short ret;
if (buffer_get_short_ret(&ret, buffer) == -1)
fatal("%s: buffer error", __func__);
return (ret);
}
int
buffer_get_int_ret(u_int *v, Buffer *buffer)
{
int ret;
if ((ret = sshbuf_get_u32(buffer, v)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
u_int
buffer_get_int(Buffer *buffer)
{
u_int ret;
if (buffer_get_int_ret(&ret, buffer) == -1)
fatal("%s: buffer error", __func__);
return (ret);
}
int
buffer_get_int64_ret(u_int64_t *v, Buffer *buffer)
{
int ret;
if ((ret = sshbuf_get_u64(buffer, v)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
u_int64_t
buffer_get_int64(Buffer *buffer)
{
u_int64_t ret;
if (buffer_get_int64_ret(&ret, buffer) == -1)
fatal("%s: buffer error", __func__);
return (ret);
}
void
buffer_put_short(Buffer *buffer, u_short value)
{
int ret;
if ((ret = sshbuf_put_u16(buffer, value)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_put_int(Buffer *buffer, u_int value)
{
int ret;
if ((ret = sshbuf_put_u32(buffer, value)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_put_int64(Buffer *buffer, u_int64_t value)
{
int ret;
if ((ret = sshbuf_put_u64(buffer, value)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void *
buffer_get_string_ret(Buffer *buffer, u_int *length_ptr)
{
size_t len;
int ret;
u_char *value;
if ((ret = sshbuf_get_string(buffer, &value, &len)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return NULL;
}
if (length_ptr != NULL)
*length_ptr = len; /* Safe: sshbuf never stores len > 2^31 */
return value;
}
void *
buffer_get_string(Buffer *buffer, u_int *length_ptr)
{
void *ret;
if ((ret = buffer_get_string_ret(buffer, length_ptr)) == NULL)
fatal("%s: buffer error", __func__);
return (ret);
}
char *
buffer_get_cstring_ret(Buffer *buffer, u_int *length_ptr)
{
size_t len;
int ret;
char *value;
if ((ret = sshbuf_get_cstring(buffer, &value, &len)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return NULL;
}
if (length_ptr != NULL)
*length_ptr = len; /* Safe: sshbuf never stores len > 2^31 */
return value;
}
char *
buffer_get_cstring(Buffer *buffer, u_int *length_ptr)
{
char *ret;
if ((ret = buffer_get_cstring_ret(buffer, length_ptr)) == NULL)
fatal("%s: buffer error", __func__);
return ret;
}
const void *
buffer_get_string_ptr_ret(Buffer *buffer, u_int *length_ptr)
{
size_t len;
int ret;
const u_char *value;
if ((ret = sshbuf_get_string_direct(buffer, &value, &len)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return NULL;
}
if (length_ptr != NULL)
*length_ptr = len; /* Safe: sshbuf never stores len > 2^31 */
return value;
}
const void *
buffer_get_string_ptr(Buffer *buffer, u_int *length_ptr)
{
const void *ret;
if ((ret = buffer_get_string_ptr_ret(buffer, length_ptr)) == NULL)
fatal("%s: buffer error", __func__);
return (ret);
}
void
buffer_put_string(Buffer *buffer, const void *buf, u_int len)
{
int ret;
if ((ret = sshbuf_put_string(buffer, buf, len)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_put_cstring(Buffer *buffer, const char *s)
{
int ret;
if ((ret = sshbuf_put_cstring(buffer, s)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
int
buffer_get_char_ret(char *v, Buffer *buffer)
{
int ret;
if ((ret = sshbuf_get_u8(buffer, (u_char *)v)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
int
buffer_get_char(Buffer *buffer)
{
char ch;
if (buffer_get_char_ret(&ch, buffer) == -1)
fatal("%s: buffer error", __func__);
return (u_char) ch;
}
void
buffer_put_char(Buffer *buffer, int value)
{
int ret;
if ((ret = sshbuf_put_u8(buffer, value)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_put_bignum2_from_string(Buffer *buffer, const u_char *s, u_int l)
{
int ret;
if ((ret = sshbuf_put_bignum2_bytes(buffer, s, l)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}

69
bufbn.c
View File

@ -1,69 +0,0 @@
/* $OpenBSD: bufbn.c,v 1.13 2017/04/30 23:23:54 djm Exp $ */
/*
* Copyright (c) 2012 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
#include "includes.h"
#ifdef WITH_OPENSSL
#include <sys/types.h>
#include "buffer.h"
#include "log.h"
#include "ssherr.h"
int
buffer_put_bignum2_ret(Buffer *buffer, const BIGNUM *value)
{
int ret;
if ((ret = sshbuf_put_bignum2(buffer, value)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
void
buffer_put_bignum2(Buffer *buffer, const BIGNUM *value)
{
if (buffer_put_bignum2_ret(buffer, value) == -1)
fatal("%s: buffer error", __func__);
}
int
buffer_get_bignum2_ret(Buffer *buffer, BIGNUM *value)
{
int ret;
if ((ret = sshbuf_get_bignum2(buffer, value)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
void
buffer_get_bignum2(Buffer *buffer, BIGNUM *value)
{
if (buffer_get_bignum2_ret(buffer, value) == -1)
fatal("%s: buffer error", __func__);
}
#endif /* WITH_OPENSSL */

74
bufec.c
View File

@ -1,74 +0,0 @@
/* $OpenBSD: bufec.c,v 1.4 2014/04/30 05:29:56 djm Exp $ */
/*
* Copyright (c) 2012 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
#include "includes.h"
#include <sys/types.h>
#include "buffer.h"
#include "log.h"
#include "ssherr.h"
#ifdef OPENSSL_HAS_ECC
int
buffer_put_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve,
const EC_POINT *point)
{
int ret;
if ((ret = sshbuf_put_ec(buffer, point, curve)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
void
buffer_put_ecpoint(Buffer *buffer, const EC_GROUP *curve,
const EC_POINT *point)
{
if (buffer_put_ecpoint_ret(buffer, curve, point) == -1)
fatal("%s: buffer error", __func__);
}
int
buffer_get_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve,
EC_POINT *point)
{
int ret;
if ((ret = sshbuf_get_ec(buffer, point, curve)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
void
buffer_get_ecpoint(Buffer *buffer, const EC_GROUP *curve,
EC_POINT *point)
{
if (buffer_get_ecpoint_ret(buffer, curve, point) == -1)
fatal("%s: buffer error", __func__);
}
#endif /* OPENSSL_HAS_ECC */

118
buffer.c
View File

@ -1,118 +0,0 @@
/* $OpenBSD: buffer.c,v 1.36 2014/04/30 05:29:56 djm Exp $ */
/*
* Copyright (c) 2012 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
#include "includes.h"
#include <sys/types.h>
#include "buffer.h"
#include "log.h"
#include "ssherr.h"
void
buffer_append(Buffer *buffer, const void *data, u_int len)
{
int ret;
if ((ret = sshbuf_put(buffer, data, len)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
}
void *
buffer_append_space(Buffer *buffer, u_int len)
{
int ret;
u_char *p;
if ((ret = sshbuf_reserve(buffer, len, &p)) != 0)
fatal("%s: %s", __func__, ssh_err(ret));
return p;
}
int
buffer_check_alloc(Buffer *buffer, u_int len)
{
int ret = sshbuf_check_reserve(buffer, len);
if (ret == 0)
return 1;
if (ret == SSH_ERR_NO_BUFFER_SPACE)
return 0;
fatal("%s: %s", __func__, ssh_err(ret));
}
int
buffer_get_ret(Buffer *buffer, void *buf, u_int len)
{
int ret;
if ((ret = sshbuf_get(buffer, buf, len)) != 0) {
error("%s: %s", __func__, ssh_err(ret));
return -1;
}
return 0;
}
void
buffer_get(Buffer *buffer, void *buf, u_int len)
{
if (buffer_get_ret(buffer, buf, len) == -1)
fatal("%s: buffer error", __func__);
}
int
buffer_consume_ret(Buffer *buffer, u_int bytes)
{
int ret = sshbuf_consume(buffer, bytes);
if (ret == 0)
return 0;
if (ret == SSH_ERR_MESSAGE_INCOMPLETE)
return -1;
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_consume(Buffer *buffer, u_int bytes)
{
if (buffer_consume_ret(buffer, bytes) == -1)
fatal("%s: buffer error", __func__);
}
int
buffer_consume_end_ret(Buffer *buffer, u_int bytes)
{
int ret = sshbuf_consume_end(buffer, bytes);
if (ret == 0)
return 0;
if (ret == SSH_ERR_MESSAGE_INCOMPLETE)
return -1;
fatal("%s: %s", __func__, ssh_err(ret));
}
void
buffer_consume_end(Buffer *buffer, u_int bytes)
{
if (buffer_consume_end_ret(buffer, bytes) == -1)
fatal("%s: buffer error", __func__);
}

95
buffer.h
View File

@ -1,95 +0,0 @@
/* $OpenBSD: buffer.h,v 1.26 2017/04/30 23:23:54 djm Exp $ */
/*
* Copyright (c) 2012 Damien Miller <djm@mindrot.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
#ifndef BUFFER_H
#define BUFFER_H
#include "sshbuf.h"
typedef struct sshbuf Buffer;
#define buffer_init(b) sshbuf_init(b)
#define buffer_clear(b) sshbuf_reset(b)
#define buffer_free(b) sshbuf_free(b)
#define buffer_dump(b) sshbuf_dump(b, stderr)
/* XXX cast is safe: sshbuf never stores more than len 2^31 */
#define buffer_len(b) ((u_int) sshbuf_len(b))
#define buffer_ptr(b) sshbuf_mutable_ptr(b)
void buffer_append(Buffer *, const void *, u_int);
void *buffer_append_space(Buffer *, u_int);
int buffer_check_alloc(Buffer *, u_int);
void buffer_get(Buffer *, void *, u_int);
void buffer_consume(Buffer *, u_int);
void buffer_consume_end(Buffer *, u_int);
int buffer_get_ret(Buffer *, void *, u_int);
int buffer_consume_ret(Buffer *, u_int);
int buffer_consume_end_ret(Buffer *, u_int);
#include <openssl/objects.h>
#include <openssl/bn.h>
void buffer_put_bignum2(Buffer *, const BIGNUM *);
void buffer_get_bignum2(Buffer *, BIGNUM *);
void buffer_put_bignum2_from_string(Buffer *, const u_char *, u_int);
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 *);
const void *buffer_get_string_ptr(Buffer *, u_int *);
void buffer_put_string(Buffer *, const void *, u_int);
char *buffer_get_cstring(Buffer *, u_int *);
void buffer_put_cstring(Buffer *, const char *);
#define buffer_skip_string(b) (void)buffer_get_string_ptr(b, NULL);
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 *);
char *buffer_get_cstring_ret(Buffer *, u_int *);
const void *buffer_get_string_ptr_ret(Buffer *, u_int *);
int buffer_get_char_ret(char *, Buffer *);
#ifdef OPENSSL_HAS_ECC
#include <openssl/ec.h>
int buffer_put_ecpoint_ret(Buffer *, const EC_GROUP *, const EC_POINT *);
void buffer_put_ecpoint(Buffer *, const EC_GROUP *, const EC_POINT *);
int buffer_get_ecpoint_ret(Buffer *, const EC_GROUP *, EC_POINT *);
void buffer_get_ecpoint(Buffer *, const EC_GROUP *, EC_POINT *);
#endif
#endif /* BUFFER_H */

3
kex.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: kex.h,v 1.88 2018/07/09 13:37:10 sf Exp $ */
/* $OpenBSD: kex.h,v 1.89 2018/07/09 21:56:06 markus Exp $ */
/*
* Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
@ -27,7 +27,6 @@
#define KEX_H
#include "mac.h"
#include "buffer.h" /* XXX for typedef */
#include "key.h" /* XXX for typedef */
#ifdef WITH_LEAKMALLOC

22
sshbuf.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshbuf.c,v 1.11 2017/06/01 06:58:25 djm Exp $ */
/* $OpenBSD: sshbuf.c,v 1.12 2018/07/09 21:56:06 markus Exp $ */
/*
* Copyright (c) 2011 Damien Miller
*
@ -36,7 +36,6 @@ sshbuf_check_sanity(const struct sshbuf *buf)
(!buf->readonly && buf->d != buf->cd) ||
buf->refcount < 1 || buf->refcount > SSHBUF_REFS_MAX ||
buf->cd == NULL ||
(buf->dont_free && (buf->readonly || buf->parent != NULL)) ||
buf->max_size > SSHBUF_SIZE_MAX ||
buf->alloc > buf->max_size ||
buf->size > buf->alloc ||
@ -131,24 +130,9 @@ sshbuf_fromb(struct sshbuf *buf)
return ret;
}
void
sshbuf_init(struct sshbuf *ret)
{
explicit_bzero(ret, sizeof(*ret));
ret->alloc = SSHBUF_SIZE_INIT;
ret->max_size = SSHBUF_SIZE_MAX;
ret->readonly = 0;
ret->dont_free = 1;
ret->refcount = 1;
if ((ret->cd = ret->d = calloc(1, ret->alloc)) == NULL)
ret->alloc = 0;
}
void
sshbuf_free(struct sshbuf *buf)
{
int dont_free = 0;
if (buf == NULL)
return;
/*
@ -173,14 +157,12 @@ sshbuf_free(struct sshbuf *buf)
buf->refcount--;
if (buf->refcount > 0)
return;
dont_free = buf->dont_free;
if (!buf->readonly) {
explicit_bzero(buf->d, buf->alloc);
free(buf->d);
}
explicit_bzero(buf, sizeof(*buf));
if (!dont_free)
free(buf);
free(buf);
}
void

11
sshbuf.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshbuf.h,v 1.10 2018/04/10 00:10:49 djm Exp $ */
/* $OpenBSD: sshbuf.h,v 1.11 2018/07/09 21:56:06 markus Exp $ */
/*
* Copyright (c) 2011 Damien Miller
*
@ -50,15 +50,6 @@ struct sshbuf {
struct sshbuf *parent; /* If child, pointer to parent */
};
#ifndef SSHBUF_NO_DEPREACTED
/*
* NB. Please do not use sshbuf_init() in new code. Please use sshbuf_new()
* instead. sshbuf_init() is deprecated and will go away soon (it is
* only included to allow compat with buffer_* in OpenSSH)
*/
void sshbuf_init(struct sshbuf *buf);
#endif
/*
* Create a new sshbuf buffer.
* Returns pointer to buffer on success, or NULL on allocation failure.