diff options
| -rw-r--r-- | console-tools/setconsole.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/console-tools/setconsole.c b/console-tools/setconsole.c index 9a8ca3821..8f4b7b7a6 100644 --- a/console-tools/setconsole.c +++ b/console-tools/setconsole.c @@ -12,8 +12,10 @@ //config: default y //config: select PLATFORM_LINUX //config: help -//config: This program redirects the system console to another device, +//config: Redirect writes to /dev/console to another device, //config: like the current tty while logged in via telnet. +//config: This does not redirect kernel log, only writes +//config: from user space. //config: //config:config FEATURE_SETCONSOLE_LONG_OPTIONS //config: bool "Enable long options" @@ -27,8 +29,10 @@ //usage:#define setconsole_trivial_usage //usage: "[-r] [DEVICE]" //usage:#define setconsole_full_usage "\n\n" -//usage: "Redirect system console output to DEVICE (default: /dev/tty)\n" -//usage: "\n -r Reset output to /dev/console" +//usage: "Make writes to /dev/console appear on DEVICE (default: /dev/tty)." +//usage: "\n""Does not redirect kernel log output or reads from /dev/console." +//usage: "\n" +//usage: "\n"" -r Reset: writes to /dev/console go to kernel log tty(s)" /* It was a bbox-specific invention, but SUSE does have a similar utility. * SUSE has no -r option, though. @@ -40,7 +44,7 @@ int setconsole_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int setconsole_main(int argc UNUSED_PARAM, char **argv) { const char *device = CURRENT_TTY; - bool reset; + int reset; /* at most one non-option argument */ opt_complementary = "?1"; @@ -54,6 +58,9 @@ int setconsole_main(int argc UNUSED_PARAM, char **argv) device = DEV_CONSOLE; } +//TODO: fails if TIOCCONS redir is already active to some tty. +//I think SUSE version first does TIOCCONS on /dev/console fd (iow: resets) +//then TIOCCONS to new tty? xioctl(xopen(device, O_WRONLY), TIOCCONS, NULL); return EXIT_SUCCESS; } |