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buffer: Rewrite ssh_buffer_free()

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Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2018-08-31 16:52:33 +02:00
parent a1b57d3b94
commit c1c32bda14
1 changed files with 16 additions and 12 deletions
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28
src/buffer.c
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@@ -129,19 +129,23 @@ struct ssh_buffer_struct *ssh_buffer_new(void) {
*
* \param[in] buffer The buffer to free.
*/
void ssh_buffer_free(struct ssh_buffer_struct *buffer) {
if (buffer == NULL) {
return;
}
buffer_verify(buffer);
void ssh_buffer_free(struct ssh_buffer_struct *buffer)
{
if (buffer == NULL) {
return;
}
buffer_verify(buffer);
if (buffer->data) {
/* burn the data */
explicit_bzero(buffer->data, buffer->allocated);
SAFE_FREE(buffer->data);
}
explicit_bzero(buffer, sizeof(struct ssh_buffer_struct));
SAFE_FREE(buffer);
if (buffer->secure && buffer->allocated > 0) {
/* burn the data */
explicit_bzero(buffer->data, buffer->allocated);
SAFE_FREE(buffer->data);
explicit_bzero(buffer, sizeof(struct ssh_buffer_struct));
} else {
SAFE_FREE(buffer->data);
}
SAFE_FREE(buffer);
}
/**