mirror of git://anongit.mindrot.org/openssh.git
upstream: revert previous; it was broken (spotted by Theo)
OpenBSD-Commit-ID: 457c79afaca2f89ec2606405c1059b98b30d8b0d
This commit is contained in:
djm@openbsd.org
Damien Miller
parent
9e0d02ef7c
commit
9d8c80f8a3
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@ -1,4 +1,4 @@
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/* $OpenBSD: sshbuf-getput-basic.c,v 1.12 2022/05/25 00:31:13 djm Exp $ */
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/* $OpenBSD: sshbuf-getput-basic.c,v 1.13 2022/05/25 06:03:44 djm Exp $ */
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/*
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* Copyright (c) 2011 Damien Miller
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*
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@ -198,7 +198,7 @@ sshbuf_get_string(struct sshbuf *buf, u_char **valp, size_t *lenp)
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return r;
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if (valp != NULL) {
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if ((*valp = malloc(len + 1)) == NULL) {
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SSHBUF_DBG("SSH_ERR_ALLOC_FAIL");
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SSHBUF_DBG(("SSH_ERR_ALLOC_FAIL"));
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return SSH_ERR_ALLOC_FAIL;
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}
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if (len != 0)
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@ -229,7 +229,7 @@ sshbuf_get_string_direct(struct sshbuf *buf, const u_char **valp, size_t *lenp)
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*lenp = len;
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if (sshbuf_consume(buf, len + 4) != 0) {
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/* Shouldn't happen */
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SSHBUF_DBG("SSH_ERR_INTERNAL_ERROR");
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SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
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SSHBUF_ABORT();
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return SSH_ERR_INTERNAL_ERROR;
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}
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@ -248,16 +248,16 @@ sshbuf_peek_string_direct(const struct sshbuf *buf, const u_char **valp,
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if (lenp != NULL)
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*lenp = 0;
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if (sshbuf_len(buf) < 4) {
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SSHBUF_DBG("SSH_ERR_MESSAGE_INCOMPLETE");
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SSHBUF_DBG(("SSH_ERR_MESSAGE_INCOMPLETE"));
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return SSH_ERR_MESSAGE_INCOMPLETE;
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}
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len = PEEK_U32(p);
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if (len > SSHBUF_SIZE_MAX - 4) {
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SSHBUF_DBG("SSH_ERR_STRING_TOO_LARGE");
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SSHBUF_DBG(("SSH_ERR_STRING_TOO_LARGE"));
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return SSH_ERR_STRING_TOO_LARGE;
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}
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if (sshbuf_len(buf) - 4 < len) {
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SSHBUF_DBG("SSH_ERR_MESSAGE_INCOMPLETE");
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SSHBUF_DBG(("SSH_ERR_MESSAGE_INCOMPLETE"));
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return SSH_ERR_MESSAGE_INCOMPLETE;
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}
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if (valp != NULL)
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@ -283,14 +283,14 @@ sshbuf_get_cstring(struct sshbuf *buf, char **valp, size_t *lenp)
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/* Allow a \0 only at the end of the string */
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if (len > 0 &&
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(z = memchr(p , '\0', len)) != NULL && z < p + len - 1) {
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SSHBUF_DBG("SSH_ERR_INVALID_FORMAT");
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SSHBUF_DBG(("SSH_ERR_INVALID_FORMAT"));
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return SSH_ERR_INVALID_FORMAT;
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}
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if ((r = sshbuf_skip_string(buf)) != 0)
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return -1;
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if (valp != NULL) {
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if ((*valp = malloc(len + 1)) == NULL) {
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SSHBUF_DBG("SSH_ERR_ALLOC_FAIL");
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SSHBUF_DBG(("SSH_ERR_ALLOC_FAIL"));
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return SSH_ERR_ALLOC_FAIL;
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}
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if (len != 0)
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@ -517,7 +517,7 @@ sshbuf_put_string(struct sshbuf *buf, const void *v, size_t len)
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int r;
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if (len > SSHBUF_SIZE_MAX - 4) {
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SSHBUF_DBG("SSH_ERR_NO_BUFFER_SPACE");
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SSHBUF_DBG(("SSH_ERR_NO_BUFFER_SPACE"));
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return SSH_ERR_NO_BUFFER_SPACE;
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}
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if ((r = sshbuf_reserve(buf, len + 4, &d)) < 0)
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@ -575,7 +575,7 @@ sshbuf_put_bignum2_bytes(struct sshbuf *buf, const void *v, size_t len)
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int r, prepend;
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if (len > SSHBUF_SIZE_MAX - 5) {
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SSHBUF_DBG("SSH_ERR_NO_BUFFER_SPACE");
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SSHBUF_DBG(("SSH_ERR_NO_BUFFER_SPACE"));
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return SSH_ERR_NO_BUFFER_SPACE;
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}
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/* Skip leading zero bytes */
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@ -625,7 +625,7 @@ sshbuf_get_bignum2_bytes_direct(struct sshbuf *buf,
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*lenp = len;
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if (sshbuf_consume(buf, olen + 4) != 0) {
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/* Shouldn't happen */
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SSHBUF_DBG("SSH_ERR_INTERNAL_ERROR");
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SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
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SSHBUF_ABORT();
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return SSH_ERR_INTERNAL_ERROR;
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}
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@ -1,4 +1,4 @@
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/* $OpenBSD: sshbuf-getput-crypto.c,v 1.9 2022/05/25 00:31:13 djm Exp $ */
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/* $OpenBSD: sshbuf-getput-crypto.c,v 1.10 2022/05/25 06:03:44 djm Exp $ */
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/*
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* Copyright (c) 2011 Damien Miller
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*
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@ -84,7 +84,7 @@ sshbuf_get_ec(struct sshbuf *buf, EC_POINT *v, const EC_GROUP *g)
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/* Skip string */
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if (sshbuf_get_string_direct(buf, NULL, NULL) != 0) {
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/* Shouldn't happen */
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SSHBUF_DBG("SSH_ERR_INTERNAL_ERROR");
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SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
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SSHBUF_ABORT();
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return SSH_ERR_INTERNAL_ERROR;
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}
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@ -100,7 +100,7 @@ sshbuf_get_eckey(struct sshbuf *buf, EC_KEY *v)
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size_t len;
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if (pt == NULL) {
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SSHBUF_DBG("SSH_ERR_ALLOC_FAIL");
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SSHBUF_DBG(("SSH_ERR_ALLOC_FAIL"));
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return SSH_ERR_ALLOC_FAIL;
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}
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if ((r = sshbuf_peek_string_direct(buf, &d, &len)) < 0) {
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@ -119,7 +119,7 @@ sshbuf_get_eckey(struct sshbuf *buf, EC_KEY *v)
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/* Skip string */
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if (sshbuf_get_string_direct(buf, NULL, NULL) != 0) {
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/* Shouldn't happen */
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SSHBUF_DBG("SSH_ERR_INTERNAL_ERROR");
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SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
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SSHBUF_ABORT();
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return SSH_ERR_INTERNAL_ERROR;
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}
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24
sshbuf.c
24
sshbuf.c
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@ -1,4 +1,4 @@
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/* $OpenBSD: sshbuf.c,v 1.17 2022/05/25 00:31:13 djm Exp $ */
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/* $OpenBSD: sshbuf.c,v 1.18 2022/05/25 06:03:44 djm Exp $ */
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/*
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* Copyright (c) 2011 Damien Miller
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*
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@ -41,7 +41,7 @@ sshbuf_check_sanity(const struct sshbuf *buf)
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buf->size > buf->alloc ||
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buf->off > buf->size)) {
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/* Do not try to recover from corrupted buffer internals */
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SSHBUF_DBG("SSH_ERR_INTERNAL_ERROR");
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SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
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ssh_signal(SIGSEGV, SIG_DFL);
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raise(SIGSEGV);
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return SSH_ERR_INTERNAL_ERROR;
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@ -52,7 +52,7 @@ sshbuf_check_sanity(const struct sshbuf *buf)
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static void
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sshbuf_maybe_pack(struct sshbuf *buf, int force)
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{
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SSHBUF_DBG("force %d", force);
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SSHBUF_DBG(("force %d", force));
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SSHBUF_TELL("pre-pack");
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if (buf->off == 0 || buf->readonly || buf->refcount > 1)
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return;
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@ -223,7 +223,7 @@ sshbuf_set_max_size(struct sshbuf *buf, size_t max_size)
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u_char *dp;
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int r;
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SSHBUF_DBG("set max buf = %p len = %zu", buf, max_size);
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SSHBUF_DBG(("set max buf = %p len = %zu", buf, max_size));
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if ((r = sshbuf_check_sanity(buf)) != 0)
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return r;
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if (max_size == buf->max_size)
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@ -241,7 +241,7 @@ sshbuf_set_max_size(struct sshbuf *buf, size_t max_size)
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rlen = ROUNDUP(buf->size, SSHBUF_SIZE_INC);
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if (rlen > max_size)
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rlen = max_size;
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SSHBUF_DBG("new alloc = %zu", rlen);
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SSHBUF_DBG(("new alloc = %zu", rlen));
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if ((dp = recallocarray(buf->d, buf->alloc, rlen, 1)) == NULL)
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return SSH_ERR_ALLOC_FAIL;
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buf->cd = buf->d = dp;
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@ -309,7 +309,7 @@ sshbuf_allocate(struct sshbuf *buf, size_t len)
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u_char *dp;
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int r;
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SSHBUF_DBG("allocate buf = %p len = %zu", buf, len);
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SSHBUF_DBG(("allocate buf = %p len = %zu", buf, len));
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if ((r = sshbuf_check_reserve(buf, len)) != 0)
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return r;
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/*
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@ -327,12 +327,12 @@ sshbuf_allocate(struct sshbuf *buf, size_t len)
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*/
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need = len + buf->size - buf->alloc;
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rlen = ROUNDUP(buf->alloc + need, SSHBUF_SIZE_INC);
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SSHBUF_DBG("need %zu initial rlen %zu", need, rlen);
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SSHBUF_DBG(("need %zu initial rlen %zu", need, rlen));
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if (rlen > buf->max_size)
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rlen = buf->alloc + need;
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SSHBUF_DBG("adjusted rlen %zu", rlen);
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SSHBUF_DBG(("adjusted rlen %zu", rlen));
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if ((dp = recallocarray(buf->d, buf->alloc, rlen, 1)) == NULL) {
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SSHBUF_DBG("realloc fail");
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SSHBUF_DBG(("realloc fail"));
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return SSH_ERR_ALLOC_FAIL;
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}
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buf->alloc = rlen;
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@ -354,7 +354,7 @@ sshbuf_reserve(struct sshbuf *buf, size_t len, u_char **dpp)
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if (dpp != NULL)
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*dpp = NULL;
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SSHBUF_DBG("reserve buf = %p len = %zu", buf, len);
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SSHBUF_DBG(("reserve buf = %p len = %zu", buf, len));
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if ((r = sshbuf_allocate(buf, len)) != 0)
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return r;
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@ -370,7 +370,7 @@ sshbuf_consume(struct sshbuf *buf, size_t len)
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{
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int r;
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SSHBUF_DBG("len = %zu", len);
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SSHBUF_DBG(("len = %zu", len));
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if ((r = sshbuf_check_sanity(buf)) != 0)
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return r;
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if (len == 0)
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@ -390,7 +390,7 @@ sshbuf_consume_end(struct sshbuf *buf, size_t len)
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{
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int r;
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SSHBUF_DBG("len = %zu", len);
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SSHBUF_DBG(("len = %zu", len));
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if ((r = sshbuf_check_sanity(buf)) != 0)
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return r;
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if (len == 0)
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17
sshbuf.h
17
sshbuf.h
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@ -1,4 +1,4 @@
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/* $OpenBSD: sshbuf.h,v 1.26 2022/05/25 00:31:13 djm Exp $ */
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/* $OpenBSD: sshbuf.h,v 1.27 2022/05/25 06:03:44 djm Exp $ */
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/*
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* Copyright (c) 2011 Damien Miller
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*
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@ -395,17 +395,16 @@ u_int sshbuf_refcount(const struct sshbuf *buf);
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# ifdef SSHBUF_DEBUG
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# define SSHBUF_TELL(what) do { \
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fprintf(stderr, \
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"%s:%d %s: %s size %zu alloc %zu off %zu max %zu\n", \
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printf("%s:%d %s: %s size %zu alloc %zu off %zu max %zu\n", \
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__FILE__, __LINE__, __func__, what, \
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buf->size, buf->alloc, buf->off, buf->max_size); \
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fflush(stderr); \
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fflush(stdout); \
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} while (0)
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# define SSHBUF_DBG(...) do { \
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fprintf(stderr, "%s:%d %s: ", __FILE__, __LINE__, __func__); \
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fprintf(stderr, __VA_ARGS__); \
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fprintf(stderr, "\n"); \
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fflush(stderr); \
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# define SSHBUF_DBG(x) do { \
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printf("%s:%d %s: ", __FILE__, __LINE__, __func__); \
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printf x; \
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printf("\n"); \
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fflush(stdout); \
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} while (0)
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# else
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# define SSHBUF_TELL(what)
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