diff options
| -rw-r--r-- | src/server/telnet_server.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c index 7507afea..06a9c7a6 100644 --- a/src/server/telnet_server.c +++ b/src/server/telnet_server.c @@ -303,6 +303,30 @@ static void telnet_history_down(struct connection *connection) telnet_history_go(connection, next_history); } +static void telnet_move_cursor(struct connection *connection, size_t pos) +{ + struct telnet_connection *tc; + size_t tmp; + + tc = connection->priv; + + if (pos < tc->line_cursor) { + tmp = tc->line_cursor - pos; + + for (size_t i = 0; i < tmp; i += 16) + telnet_write(connection, "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b", + MIN(tmp - i, 16)); + } else { + tmp = pos - tc->line_cursor; + + for (size_t i = 0; i < tmp; i += 16) + telnet_write(connection, tc->line + tc->line_cursor + i, + MIN(tmp - i, 16)); + } + + tc->line_cursor = pos; +} + static int telnet_input(struct connection *connection) { int bytes_read; @@ -482,6 +506,10 @@ static int telnet_input(struct connection *connection) telnet_history_up(connection); else if (*buf_p == CTRL('N')) /* cursor down */ telnet_history_down(connection); + else if (*buf_p == CTRL('A')) + telnet_move_cursor(connection, 0); + else if (*buf_p == CTRL('E')) + telnet_move_cursor(connection, t_con->line_size); else LOG_DEBUG("unhandled nonprintable: %2.2x", *buf_p); } |