Clarify OPOST bit meaning

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index d7647704e63e8124fed10f912edd9c895fc1aee5..0dfb3e2d981ece210db6b9219bd164caf0385269 100644 (file)
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -348,8 +348,8 @@ int FAST_FUNC get_termios_and_make_raw(int fd, struct termios *newterm, struct t
                newterm->c_iflag &= ~(IXON | ICRNL);
                /* dont convert NL to CR+NL on output */
                newterm->c_oflag &= ~(ONLCR);
-               /* Maybe clear more c_oflag bits? usually, only OPOST and ONLCR are set.
-                * OPOST  Enable implementation-defined output processing (is this reqd for all other bits to work?)
+               /* Maybe clear more c_oflag bits? Usually, only OPOST and ONLCR are set.
+                * OPOST  Enable output processing (reqd for OLCUC and *NL* bits to work)
                 * OLCUC  Map lowercase characters to uppercase on output.
                 * OCRNL  Map CR to NL on output.
                 * ONOCR  Don't output CR at column 0.
@@ -358,7 +358,7 @@ int FAST_FUNC get_termios_and_make_raw(int fd, struct termios *newterm, struct t
        }
        if (flags & TERMIOS_RAW_INPUT) {
                /* IXOFF=0: disable sending XON/XOFF if input buf is full */
-               /* IXON=0: XON/XOFF chars are treated as normal chars */
+               /* IXON=0: input XON/XOFF chars are not special */
                /* dont convert anything on input */
                newterm->c_iflag &= ~(IXOFF|IXON|IXANY|BRKINT|INLCR|ICRNL|IUCLC|IMAXBEL);
        }