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-rw-r--r--source3/libsmb/clireadwrite.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/source3/libsmb/clireadwrite.c b/source3/libsmb/clireadwrite.c
index c19151e5b8..e8baeba588 100644
--- a/source3/libsmb/clireadwrite.c
+++ b/source3/libsmb/clireadwrite.c
@@ -28,6 +28,11 @@
****************************************************************************/
static size_t cli_read_max_bufsize(struct cli_state *cli)
{
+ size_t data_offset = smb_size - 4;
+ size_t wct = 12;
+
+ size_t useable_space;
+
if (!client_is_signing_on(cli) && !cli_encryption_on(cli)
&& (cli->server_posix_capabilities & CIFS_UNIX_LARGE_READ_CAP)) {
return CLI_SAMBA_MAX_POSIX_LARGE_READX_SIZE;
@@ -37,7 +42,13 @@ static size_t cli_read_max_bufsize(struct cli_state *cli)
? CLI_SAMBA_MAX_LARGE_READX_SIZE
: CLI_WINDOWS_MAX_LARGE_READX_SIZE;
}
- return (cli->max_xmit - (smb_size+32)) & ~1023;
+
+ data_offset += wct * sizeof(uint16_t);
+ data_offset += 1; /* pad */
+
+ useable_space = cli->max_xmit - data_offset;
+
+ return useable_space;
}
/****************************************************************************