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authorAndreas Baumann <mail@andreasbaumann.cc>2015-01-03 12:04:58 +0100
committerAndreas Baumann <mail@andreasbaumann.cc>2015-01-03 12:04:58 +0100
commit008d0be72b2f160382c6e880765e96b64a050c65 (patch)
tree36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/deallocvt.c
parent611becfb8726c60cb060368541ad98191d4532f5 (diff)
downloadtomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz
tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/deallocvt.c')
-rw-r--r--release/src/router/busybox/deallocvt.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/release/src/router/busybox/deallocvt.c b/release/src/router/busybox/deallocvt.c
new file mode 100644
index 00000000..15cd0c9b
--- /dev/null
+++ b/release/src/router/busybox/deallocvt.c
@@ -0,0 +1,43 @@
+/* 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, i;
+
+ //if ((argc > 2) || ((argv == 2) && (**(argv + 1) == '-')))
+ if (argc > 2)
+ show_usage();
+
+ fd = get_console_fd("/dev/console");
+
+ if (argc == 1) {
+ /* deallocate all unused consoles */
+ if (ioctl(fd, VT_DISALLOCATE, 0))
+ perror_msg_and_die("VT_DISALLOCATE");
+ } else {
+ for (i = 1; i < argc; i++) {
+ num = atoi(argv[i]);
+ if (num == 0)
+ error_msg("0: illegal VT number");
+ else if (num == 1)
+ error_msg("VT 1 cannot be deallocated");
+ else if (ioctl(fd, VT_DISALLOCATE, num))
+ perror_msg_and_die("VT_DISALLOCATE");
+ }
+ }
+
+ return EXIT_SUCCESS;
+}