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Don't ignore the return from tcsetattr() - moan about it instead.

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Suggested by: Andre Albsmeier <andre@akademie3000.de>
This commit is contained in:
Brian Somers 2000-10-31 23:27:35 +00:00
parent 47c27de5b5
commit fca09861d8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=68127
1 changed files with 16 additions and 7 deletions
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23
usr.sbin/ppp/tty.c
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@ -216,7 +216,9 @@ tty_Raw(struct physical *p)
if (p->type != PHYS_DEDICATED)
ios.c_cflag |= HUPCL;
tcsetattr(p->fd, TCSANOW, &ios);
if (tcsetattr(p->fd, TCSANOW, &ios) == -1)
log_Printf(LogWARN, "%s: tcsetattr: Failed configuring device\n",
p->link.name);
}
oldflag = fcntl(p->fd, F_GETFL, 0);
@ -239,11 +241,9 @@ tty_Offline(struct physical *p)
struct termios tio;
tcgetattr(p->fd, &tio);
if (cfsetspeed(&tio, B0) == -1)
if (cfsetspeed(&tio, B0) == -1 || tcsetattr(p->fd, TCSANOW, &tio) == -1)
log_Printf(LogWARN, "%s: Unable to set physical to speed 0\n",
p->link.name);
else
tcsetattr(p->fd, TCSANOW, &tio);
}
}
}
@ -258,8 +258,9 @@ tty_Cooked(struct physical *p)
tcflush(p->fd, TCIOFLUSH);
if (!physical_IsSync(p))
tcsetattr(p->fd, TCSAFLUSH, &dev->ios);
if (!physical_IsSync(p) && tcsetattr(p->fd, TCSAFLUSH, &dev->ios) == -1)
log_Printf(LogWARN, "%s: tcsetattr: Unable to restore device settings\n",
p->link.name);
if ((oldflag = fcntl(p->fd, F_GETFL, 0)) != -1)
fcntl(p->fd, F_SETFL, oldflag & ~O_NONBLOCK);
@ -436,7 +437,15 @@ tty_Create(struct physical *p)
log_Printf(LogWARN, "%s: %s: Unable to set speed to %d\n",
p->link.name, p->name.full, p->cfg.speed);
}
tcsetattr(p->fd, TCSADRAIN, &ios);
if (tcsetattr(p->fd, TCSADRAIN, &ios) == -1) {
log_Printf(LogWARN, "%s: tcsetattr: Failed configuring device\n",
p->link.name);
if (p->type != PHYS_DIRECT && p->cfg.speed > 115200)
log_Printf(LogWARN, "%.*s Perhaps the speed is unsupported\n",
(int)strlen(p->link.name), "");
}
log_Printf(LogDEBUG, "%s: physical (put): iflag = %lx, oflag = %lx, "
"cflag = %lx\n", p->link.name, (u_long)ios.c_iflag,
(u_long)ios.c_oflag, (u_long)ios.c_cflag);