diff options
author | Andreas Schneider <asn@cryptomilk.org> | 2017-04-13 16:19:28 +0200 |
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committer | Andreas Schneider <asn@cryptomilk.org> | 2017-04-13 16:19:28 +0200 |
commit | f21ddefedb1230536b67a80efaf333664a38b54c (patch) | |
tree | 3db63c63fef4b10f9884eb3a929e7f900dbcb885 /src | |
parent | 0cf1c8554296d999dec20d0175eb28d87433dbca (diff) | |
download | libssh-f21ddefedb1230536b67a80efaf333664a38b54c.tar.gz libssh-f21ddefedb1230536b67a80efaf333664a38b54c.tar.xz libssh-f21ddefedb1230536b67a80efaf333664a38b54c.zip |
Revert "buffer: Create ssh_buffer_validate_length()"
This reverts commit 34bdc1ca7871e8e9258077411edd516c8de55299.
Diffstat (limited to 'src')
-rw-r--r-- | src/buffer.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/src/buffer.c b/src/buffer.c index 0c776698..61b07e9a 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -526,8 +526,8 @@ uint32_t ssh_buffer_get_data(struct ssh_buffer_struct *buffer, void *data, uint3 * Check for a integer overflow first, then check if not enough data is in * the buffer. */ - if (!ssh_buffer_validate_length(buffer, len)) { - return 0; + if (buffer->pos + len < len || buffer->pos + len > buffer->used) { + return 0; } memcpy(data,buffer->data+buffer->pos,len); buffer->pos+=len; @@ -581,24 +581,6 @@ int ssh_buffer_get_u64(struct ssh_buffer_struct *buffer, uint64_t *data){ } /** - * @brief Valdiates that the given length can be obtained from the buffer. - * - * @param[in] buffer The buffer to read from. - * - * @param[in] len The length to be checked. - * - * @return SSH_OK if the length is valid, SSH_ERROR otherwise. - */ -int ssh_buffer_validate_length(struct ssh_buffer_struct *buffer, size_t len) -{ - if (buffer->pos + len < len || buffer->pos + len > buffer->used) { - return SSH_ERROR; - } - - return SSH_OK; -} - -/** * @internal * * @brief Get a SSH String out of the buffer and adjusts the read pointer. @@ -617,7 +599,7 @@ struct ssh_string_struct *ssh_buffer_get_ssh_string(struct ssh_buffer_struct *bu } hostlen = ntohl(stringlen); /* verify if there is enough space in buffer to get it */ - if (!ssh_buffer_validate_length(buffer, hostlen) { + if (buffer->pos + hostlen < hostlen || buffer->pos + hostlen > buffer->used) { return NULL; /* it is indeed */ } str = ssh_string_new(hostlen); |