setconsole.c
上传用户:wudi5211
上传日期:2010-01-21
资源大小:607k
文件大小:1k
- /*
- * setconsole.c -- choose a console to receive kernel messages
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <errno.h>
- #include <unistd.h>
- #include <sys/ioctl.h>
- int main(int argc, char **argv)
- {
- char bytes[2] = {11,0}; /* 11 is the TIOCLINUX cmd number */
- if (argc==2) bytes[1] = atoi(argv[1]); /* the chosen console */
- else {
- fprintf(stderr, "%s: need a single argn",argv[0]); exit(1);
- }
- if (ioctl(STDIN_FILENO, TIOCLINUX, bytes)<0) { /* use stdin */
- fprintf(stderr,"%s: ioctl(stdin, TIOCLINUX): %sn",
- argv[0], strerror(errno));
- exit(1);
- }
- exit(0);
- }