67991cf824
done by Evin Robertson (bug#1105) and work from Manuel to make usage messages occupy less space and simplify how usage messages are displayed.
41 lines
821 B
C
41 lines
821 B
C
/* vi: set sw=4 ts=4: */
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/*
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* chvt.c - aeb - 940227 - Change virtual terminal
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*
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* busyboxed by Erik Andersen
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*/
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#include "busybox.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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/* From <linux/vt.h> */
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static const int VT_ACTIVATE = 0x5606; /* make vt active */
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static const int VT_WAITACTIVE = 0x5607; /* wait for vt active */
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int chvt_main(int argc, char **argv)
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{
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int fd, num;
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if ((argc != 2) || (**(argv + 1) == '-'))
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show_usage();
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fd = get_console_fd("/dev/console");
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num = atoi(argv[1]);
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if (ioctl(fd, VT_ACTIVATE, num))
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perror_msg_and_die("VT_ACTIVATE");
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if (ioctl(fd, VT_WAITACTIVE, num))
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perror_msg_and_die("VT_WAITACTIVE");
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return EXIT_SUCCESS;
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}
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/*
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Local Variables:
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c-file-style: "linux"
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c-basic-offset: 4
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tab-width: 4
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End:
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*/
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