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avoid echo on pty devices (David Decotigny) - fixes in the command line help

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1719 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-12-18 19:09:37 +00:00
parent 2c6cadd49e
commit 91fc211974
1 changed files with 11 additions and 1 deletions
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12
vl.c
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@ -1398,6 +1398,7 @@ CharDriverState *qemu_chr_open_stdio(void)
#if defined(__linux__)
CharDriverState *qemu_chr_open_pty(void)
{
struct termios tty;
char slave_name[1024];
int master_fd, slave_fd;
@ -1405,6 +1406,14 @@ CharDriverState *qemu_chr_open_pty(void)
if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
return NULL;
}
/* Disabling local echo and line-buffered output */
tcgetattr (master_fd, &tty);
tty.c_lflag &= ~(ECHO|ICANON|ISIG);
tty.c_cc[VMIN] = 1;
tty.c_cc[VTIME] = 0;
tcsetattr (master_fd, TCSAFLUSH, &tty);
fprintf(stderr, "char device redirected to %s\n", slave_name);
return qemu_chr_open_fd(master_fd, master_fd);
}
@ -3962,12 +3971,13 @@ void help(void)
"-boot [a|c|d] boot on floppy (a), hard disk (c) or CD-ROM (d)\n"
"-snapshot write to temporary files instead of disk image files\n"
"-m megs set virtual RAM size to megs MB [default=%d]\n"
"-smp n set the number of CPUs to 'n' [default=1]\n"
"-nographic disable graphical output and redirect serial I/Os to console\n"
#ifndef _WIN32
"-k language use keyboard layout (for example \"fr\" for French)\n"
#endif
#ifdef HAS_AUDIO
"-enable-audio enable audio support, and all the sound cars\n"
"-enable-audio enable audio support, and all the sound cards\n"
"-audio-help print list of audio drivers and their options\n"
"-soundhw c1,... enable audio support\n"
" and only specified sound cards (comma separated list)\n"