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Move reading termios settings to before tty_open alters them, and expand the

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comment.
This commit is contained in:
Nicholas Marriott 2009-08-21 11:38:09 +00:00
parent 03f4ab4bd5
commit 27c5df22cf
1 changed files with 40 additions and 35 deletions
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75
cmd-new-session.c
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@ -1,4 +1,4 @@
/* $Id: cmd-new-session.c,v 1.59 2009-08-20 18:35:53 nicm Exp $ */
/* $Id: cmd-new-session.c,v 1.60 2009-08-21 11:38:09 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@ -147,6 +147,45 @@ cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
if (ctx->cmdclient == NULL && ctx->curclient == NULL)
detached = 1;
/*
* Fill in the termios settings used for new windows in this session;
* if there is a command client, use the control characters from it.
*
* This is read again with tcgetattr() rather than using tty.tio as if
* detached, tty_open won't be called. Because of this, it must be done
* before opening the terminal as that calls tcsetattr() to prepare for
* tmux taking over.
*/
if (ctx->cmdclient != NULL && ctx->cmdclient->tty.fd != -1) {
if (tcgetattr(ctx->cmdclient->tty.fd, &tio) != 0)
fatal("tcgetattr failed");
} else {
#ifdef HAVE_TTYDEFCHARS
memcpy(tio.c_cc, ttydefchars, sizeof tio.c_cc);
#else
memset(tio.c_cc, _POSIX_VDISABLE, sizeof tio.c_cc);
tio.c_cc[VINTR] = CINTR;
tio.c_cc[VQUIT] = CQUIT;
tio.c_cc[VERASE] = CERASE;
tio.c_cc[VKILL] = CKILL;
tio.c_cc[VEOF] = CEOF;
tio.c_cc[VSTART] = CSTART;
tio.c_cc[VSTOP] = CSTOP;
tio.c_cc[VSUSP] = CSUSP;
tio.c_cc[VEOL] = CEOL;
tio.c_cc[VREPRINT] = CREPRINT;
tio.c_cc[VDISCARD] = CDISCARD;
tio.c_cc[VWERASE] = CWERASE;
tio.c_cc[VLNEXT] = CLNEXT;
#endif
}
tio.c_iflag = TTYDEF_IFLAG;
tio.c_oflag = TTYDEF_OFLAG;
tio.c_lflag = TTYDEF_LFLAG;
tio.c_cflag = TTYDEF_CFLAG;
cfsetispeed(&tio, TTYDEF_SPEED);
cfsetospeed(&tio, TTYDEF_SPEED);
/* Open the terminal if necessary. */
if (!detached && ctx->cmdclient != NULL) {
if (!(ctx->cmdclient->flags & CLIENT_TERMINAL)) {
@ -197,40 +236,6 @@ cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
if (ctx->cmdclient != NULL)
environ_update(update, &ctx->cmdclient->environ, &env);
/*
* Fill in the termios settings used for new windows in this session;
* if there is a command client, use the control characters from it.
*/
if (ctx->cmdclient != NULL && ctx->cmdclient->tty.fd != -1) {
if (tcgetattr(ctx->cmdclient->tty.fd, &tio) != 0)
fatal("tcgetattr failed");
} else {
#ifdef HAVE_TTYDEFCHARS
memcpy(tio.c_cc, ttydefchars, sizeof tio.c_cc);
#else
memset(tio.c_cc, _POSIX_VDISABLE, sizeof tio.c_cc);
tio.c_cc[VINTR] = CINTR;
tio.c_cc[VQUIT] = CQUIT;
tio.c_cc[VERASE] = CERASE;
tio.c_cc[VKILL] = CKILL;
tio.c_cc[VEOF] = CEOF;
tio.c_cc[VSTART] = CSTART;
tio.c_cc[VSTOP] = CSTOP;
tio.c_cc[VSUSP] = CSUSP;
tio.c_cc[VEOL] = CEOL;
tio.c_cc[VREPRINT] = CREPRINT;
tio.c_cc[VDISCARD] = CDISCARD;
tio.c_cc[VWERASE] = CWERASE;
tio.c_cc[VLNEXT] = CLNEXT;
#endif
}
tio.c_iflag = TTYDEF_IFLAG;
tio.c_oflag = TTYDEF_OFLAG;
tio.c_lflag = TTYDEF_LFLAG;
tio.c_cflag = TTYDEF_CFLAG;
cfsetispeed(&tio, TTYDEF_SPEED);
cfsetospeed(&tio, TTYDEF_SPEED);
/* Create the new session. */
idx = -1 - options_get_number(&global_s_options, "base-index");
s = session_create(