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author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
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committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 12:04:58 +0100 |
commit | 008d0be72b2f160382c6e880765e96b64a050c65 (patch) | |
tree | 36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/console-tools/deallocvt.c | |
parent | 611becfb8726c60cb060368541ad98191d4532f5 (diff) | |
download | tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2 |
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/console-tools/deallocvt.c')
-rw-r--r-- | release/src/router/busybox/console-tools/deallocvt.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/release/src/router/busybox/console-tools/deallocvt.c b/release/src/router/busybox/console-tools/deallocvt.c new file mode 100644 index 00000000..f641be8d --- /dev/null +++ b/release/src/router/busybox/console-tools/deallocvt.c @@ -0,0 +1,46 @@ +/* vi: set sw=4 ts=4: */ +/* + * disalloc.c - aeb - 940501 - Disallocate virtual terminal(s) + * Renamed deallocvt. + */ +#include <stdlib.h> +#include <stdio.h> +#include <fcntl.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include "busybox.h" + +/* From <linux/vt.h> */ +static const int VT_DISALLOCATE = 0x5608; /* free memory associated to vt */ + +int deallocvt_main(int argc, char *argv[]) +{ + int fd, num=0; + + if (argc > 2) + bb_show_usage(); + + fd = get_console_fd(); + + /* num=0 deallocate all unused consoles */ + if (argc == 1) + goto disallocate_all; + + num=bb_xgetlarg(argv[1], 10, 0, INT_MAX); + + switch(num) + { + case 0: + bb_error_msg("0: illegal VT number"); + break; + case 1: + bb_error_msg("VT 1 cannot be deallocated"); + break; + default: +disallocate_all: + if (ioctl(fd, VT_DISALLOCATE, num)) + bb_perror_msg_and_die("VT_DISALLOCATE"); + return EXIT_SUCCESS; + } + return EXIT_FAILURE; +} |