diff options
Diffstat (limited to 'toolbox/setconsole.c')
| -rw-r--r-- | toolbox/setconsole.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/toolbox/setconsole.c b/toolbox/setconsole.c deleted file mode 100644 index 85ea7c2..0000000 --- a/toolbox/setconsole.c +++ /dev/null @@ -1,161 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <fcntl.h> -#include <string.h> -#include <linux/kd.h> -#include <linux/vt.h> -#include <errno.h> -#include <pthread.h> -#include <unistd.h> -#include <sys/ioctl.h> - -static int activate_thread_switch_vc; -static void *activate_thread(void *arg) -{ - int fd = (int) (uintptr_t) arg; - while(activate_thread_switch_vc >= 0) { - int res = TEMP_FAILURE_RETRY(ioctl(fd, VT_ACTIVATE, activate_thread_switch_vc)); - if (res < 0) { - fprintf(stderr, "ioctl( vcfd, VT_ACTIVATE, vtnum) failed, %d %d %s for %d\n", res, errno, strerror(errno), activate_thread_switch_vc); - } - if(activate_thread_switch_vc >= 0) - sleep(1); - } - return NULL; -} - - -int setconsole_main(int argc, char *argv[]) -{ - int c; - int fd; - int res; - - int mode = -1; - int new_vc = 0; - int close_vc = 0; - int switch_vc = -1; - int printvc = 0; - char *ttydev = "/dev/tty0"; - - do { - c = getopt(argc, argv, "d:gtncv:poh"); - if (c == EOF) - break; - switch (c) { - case 'd': - ttydev = optarg; - break; - case 'g': - if(mode == KD_TEXT) { - fprintf(stderr, "%s: cannot specify both -g and -t\n", argv[0]); - exit(1); - } - mode = KD_GRAPHICS; - break; - case 't': - if(mode == KD_GRAPHICS) { - fprintf(stderr, "%s: cannot specify both -g and -t\n", argv[0]); - exit(1); - } - mode = KD_TEXT; - break; - case 'n': - new_vc = 1; - break; - case 'c': - close_vc = 1; - break; - case 'v': - switch_vc = atoi(optarg); - break; - case 'p': - printvc |= 1; - break; - case 'o': - printvc |= 2; - break; - case 'h': - fprintf(stderr, "%s [-d <dev>] [-v <vc>] [-gtncpoh]\n" - " -d <dev> Use <dev> instead of /dev/tty0\n" - " -v <vc> Switch to virtual console <vc>\n" - " -g Switch to graphics mode\n" - " -t Switch to text mode\n" - " -n Create and switch to new virtual console\n" - " -c Close unused virtual consoles\n" - " -p Print new virtual console\n" - " -o Print old virtual console\n" - " -h Print help\n", argv[0]); - return -1; - case '?': - fprintf(stderr, "%s: invalid option -%c\n", - argv[0], optopt); - exit(1); - } - } while (1); - if(mode == -1 && new_vc == 0 && close_vc == 0 && switch_vc == -1 && printvc == 0) { - fprintf(stderr,"%s [-d <dev>] [-v <vc>] [-gtncpoh]\n", argv[0]); - return -1; - } - - fd = open(ttydev, O_RDWR | O_SYNC); - if (fd < 0) { - fprintf(stderr, "cannot open %s\n", ttydev); - return -1; - } - - if ((printvc && !new_vc) || (printvc & 2)) { - struct vt_stat vs; - - res = ioctl(fd, VT_GETSTATE, &vs); - if (res < 0) { - fprintf(stderr, "ioctl(vcfd, VT_GETSTATE, &vs) failed, %d\n", res); - } - printf("%d\n", vs.v_active); - } - - if (new_vc) { - int vtnum; - res = ioctl(fd, VT_OPENQRY, &vtnum); - if (res < 0 || vtnum == -1) { - fprintf(stderr, "ioctl(vcfd, VT_OPENQRY, &vtnum) failed, res %d, vtnum %d\n", res, vtnum); - } - switch_vc = vtnum; - } - if (switch_vc != -1) { - pthread_t thread; - pthread_attr_t attr; - activate_thread_switch_vc = switch_vc; - pthread_attr_init(&attr); - pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); - pthread_create(&thread, &attr, activate_thread, (void*) (uintptr_t) fd); - - res = TEMP_FAILURE_RETRY(ioctl(fd, VT_WAITACTIVE, switch_vc)); - activate_thread_switch_vc = -1; - if (res < 0) { - fprintf(stderr, "ioctl( vcfd, VT_WAITACTIVE, vtnum) failed, %d %d %s for %d\n", res, errno, strerror(errno), switch_vc); - } - if(printvc & 1) - printf("%d\n", switch_vc); - - close(fd); - fd = open(ttydev, O_RDWR | O_SYNC); - if (fd < 0) { - fprintf(stderr, "cannot open %s\n", ttydev); - return -1; - } - } - if (close_vc) { - res = ioctl(fd, VT_DISALLOCATE, 0); - if (res < 0) { - fprintf(stderr, "ioctl(vcfd, VT_DISALLOCATE, 0) failed, %d\n", res); - } - } - if (mode != -1) { - if (ioctl(fd, KDSETMODE, mode) < 0) { - fprintf(stderr, "KDSETMODE %d failed\n", mode); - return -1; - } - } - return 0; -} |