*/
bool smb2_oob(struct smb2_request_buffer *buf, const uint8_t *ptr, size_t size)
{
+ if (size == 0) {
+ /* zero bytes is never out of range */
+ return false;
+ }
/* be careful with wraparound! */
if (ptr < buf->body ||
ptr >= buf->body + buf->body_size ||
}
ofs = SVAL(ptr, 0);
size = SVAL(ptr, 2);
- if (ofs == 0 || size == 0) {
+ if (ofs == 0) {
*blob = data_blob(NULL, 0);
return NT_STATUS_OK;
}
return NT_STATUS_BUFFER_TOO_SMALL;
}
- if (blob.length == 0) {
+ if (blob.data == NULL) {
+ if (blob.length != 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
SSVAL(ptr, 0, 0);
SSVAL(ptr, 2, 0);
return NT_STATUS_OK;
return NT_STATUS_BUFFER_TOO_SMALL;
}
- if (blob.length == 0) {
+ if (blob.data == NULL) {
+ if (blob.length != 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
SSVAL(ptr, 0, 0);
SIVAL(ptr, 2, 0);
return NT_STATUS_OK;
return NT_STATUS_BUFFER_TOO_SMALL;
}
- if (blob.length == 0) {
+ if (blob.data == NULL) {
+ if (blob.length != 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
SIVAL(ptr, 0, 0);
SIVAL(ptr, 4, 0);
return NT_STATUS_OK;
return NT_STATUS_BUFFER_TOO_SMALL;
}
- if (blob.length == 0) {
+ if (blob.data == NULL) {
+ if (blob.length != 0) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
SIVAL(ptr, 0, 0);
SIVAL(ptr, 4, 0);
return NT_STATUS_OK;
}
ofs = SVAL(ptr, 0);
size = IVAL(ptr, 2);
- if (ofs == 0 || size == 0) {
+ if (ofs == 0) {
*blob = data_blob(NULL, 0);
return NT_STATUS_OK;
}
}
ofs = IVAL(ptr, 0);
size = IVAL(ptr, 4);
- if (ofs == 0 || size == 0) {
+ if (ofs == 0) {
*blob = data_blob(NULL, 0);
return NT_STATUS_OK;
}
}
ofs = SVAL(ptr, 0);
size = IVAL(ptr, 4);
- if (ofs == 0 || size == 0) {
+ if (ofs == 0) {
*blob = data_blob(NULL, 0);
return NT_STATUS_OK;
}
}
size = IVAL(ptr, 0);
ofs = IVAL(ptr, 4);
- if (ofs == 0 || size == 0) {
+ if (ofs == 0) {
*blob = data_blob(NULL, 0);
return NT_STATUS_OK;
}
status = smb2_pull_o16s16_blob(buf, mem_ctx, ptr, &blob);
NT_STATUS_NOT_OK_RETURN(status);
+ if (blob.data == NULL) {
+ *str = NULL;
+ return NT_STATUS_OK;
+ }
+
if (blob.length == 0) {
char *s;
s = talloc_strdup(mem_ctx, "");
NTSTATUS status;
ssize_t size;
- if (strcmp("", str) == 0) {
+ if (str == NULL) {
return smb2_push_o16s16_blob(buf, ofs, data_blob(NULL, 0));
}