@@ -15,11 +15,11 @@
 command,proc exec_get {delim args} {return [split [exec openssl {*}$args] $delim]},,,,,,,,,
 command,"proc exec_get_ciphers {} {set list [list];set data [exec openssl list -cipher-algorithms];foreach line [split $data ""\n""] {foreach {cipher null alias} [split [string trim $line]] {lappend list [string tolower $cipher]}};return [lsort -unique $list]}",,,,,,,,,
 command,"proc exec_get_digests {} {set list [list];set data [exec openssl dgst -list];foreach line [split $data ""\n""] {foreach digest $line {if {[string match ""-*"" $digest]} {lappend list [string trimleft $digest ""-""]}}};return [lsort $list]}",,,,,,,,,
 command,proc exec_get_macs {} {return [list cmac hmac]},,,,,,,,,
 command,proc list_tolower {list} {set result [list];foreach element $list {lappend result [string tolower $element]};return $result},,,,,,,,,
-command,proc read_chan {md filename args} {set ch [open $filename rb];fconfigure $ch -translation binary;set new [tls::digest $md {*}$args -chan $ch];while {![eof $new]} {set result [read $new]};close $new;return $result},,,,,,,,,
+command,proc read_chan {md filename args} {set ch [open $filename rb];fconfigure $ch -translation binary;set bsize [fconfigure $ch -buffersize];set new [tls::digest $md {*}$args -chan $ch];while {![eof $new]} {set result [read $new $bsize]};close $new;return $result},,,,,,,,,
 ,,,,,,,,,,
 command,# Test list ciphers,,,,,,,,,
 Ciphers List,All,,,lcompare [lsort [exec_get_ciphers]] [list_tolower [lsort [::tls::ciphers]]],,,missing {rc5 rc5-cbc rc5-cfb rc5-ecb rc5-ofb} unexpected {aes-128-ccm aes-128-gcm aes-192-ccm aes-192-gcm aes-256-ccm aes-256-gcm},,,
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 command,# Test list ciphers for protocols,,,,,,,,,