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| author | Glenn L McGrath <bug1@ihug.co.nz> | 2002-09-16 03:16:06 +0000 |
|---|---|---|
| committer | Glenn L McGrath <bug1@ihug.co.nz> | 2002-09-16 03:16:06 +0000 |
| commit | ec0c48cb296185c5af585c9f9a7213cd4177dbb5 (patch) | |
| tree | 49aee82f58bf99c33065595d20efc1ed08a03e3c /console-tools/openvt.c | |
| parent | 6714862bdd2ee83d0e0f42cdbf4752629376b81e (diff) | |
| download | busybox-w32-ec0c48cb296185c5af585c9f9a7213cd4177dbb5.tar.gz busybox-w32-ec0c48cb296185c5af585c9f9a7213cd4177dbb5.tar.bz2 busybox-w32-ec0c48cb296185c5af585c9f9a7213cd4177dbb5.zip | |
openvt applet by Quy Tonthat
Diffstat (limited to 'console-tools/openvt.c')
| -rw-r--r-- | console-tools/openvt.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/console-tools/openvt.c b/console-tools/openvt.c new file mode 100644 index 000000000..3373edd29 --- /dev/null +++ b/console-tools/openvt.c | |||
| @@ -0,0 +1,84 @@ | |||
| 1 | /* vi: set sw=4 ts=4: */ | ||
| 2 | |||
| 3 | /* | ||
| 4 | * openvt.c - open a vt to run a command. | ||
| 5 | * | ||
| 6 | * busyboxed by Quy Tonthat <quy@signal3.com> | ||
| 7 | */ | ||
| 8 | |||
| 9 | /* getopt not needed */ | ||
| 10 | |||
| 11 | #include <stdio.h> | ||
| 12 | #include <stdlib.h> | ||
| 13 | #include <unistd.h> | ||
| 14 | #include <fcntl.h> | ||
| 15 | #include <string.h> | ||
| 16 | #include <sys/types.h> | ||
| 17 | #include "busybox.h" | ||
| 18 | |||
| 19 | #define VTNAME "/dev/tty%d" | ||
| 20 | |||
| 21 | int openvt_main(int argc, char **argv) | ||
| 22 | { | ||
| 23 | int pid; | ||
| 24 | int fd; | ||
| 25 | int vtno; | ||
| 26 | char vtname[sizeof VTNAME + 2]; | ||
| 27 | char * cmd = NULL; | ||
| 28 | char * cmd_args = NULL; | ||
| 29 | |||
| 30 | if (argc < 3) | ||
| 31 | show_usage(); | ||
| 32 | |||
| 33 | if (!isdigit(argv[1][0])) | ||
| 34 | show_usage(); | ||
| 35 | |||
| 36 | vtno = (int) atol(argv[1]); | ||
| 37 | |||
| 38 | /* if (vtno <= 0 || vtno > 63) */ | ||
| 39 | if (vtno <= 0 || vtno > 12) | ||
| 40 | error_msg_and_die("Illegal vt number (%d)", vtno); | ||
| 41 | |||
| 42 | sprintf(vtname, VTNAME, vtno); | ||
| 43 | |||
| 44 | cmd = argv[2]; | ||
| 45 | cmd_args = xmalloc(80); | ||
| 46 | cmd_args[0] = '\0'; | ||
| 47 | |||
| 48 | if((pid = fork()) == 0) { | ||
| 49 | /* leave current vt */ | ||
| 50 | |||
| 51 | #ifdef ESIX_5_3_2_D | ||
| 52 | if (setpgrp() < 0) { | ||
| 53 | #else | ||
| 54 | if (setsid() < 0) { | ||
| 55 | #endif | ||
| 56 | |||
| 57 | perror_msg_and_die("Unable to set new session"); | ||
| 58 | } | ||
| 59 | close(0); /* so that new vt becomes stdin */ | ||
| 60 | |||
| 61 | /* and grab new one */ | ||
| 62 | if ((fd = open(vtname, O_RDWR)) == -1) | ||
| 63 | perror_msg_and_die("could not open %s", vtname); | ||
| 64 | |||
| 65 | /* Reassign stdout and sterr */ | ||
| 66 | close(1); | ||
| 67 | close(2); | ||
| 68 | dup(fd); | ||
| 69 | dup(fd); | ||
| 70 | |||
| 71 | execvp(cmd, &argv[2]); | ||
| 72 | /*execlp(cmd, cmd_args);*/ | ||
| 73 | _exit(1); | ||
| 74 | } | ||
| 75 | return EXIT_SUCCESS; | ||
| 76 | } | ||
| 77 | |||
| 78 | /* | ||
| 79 | Local Variables: | ||
| 80 | c-file-style: "linux" | ||
| 81 | c-basic-offset: 4 | ||
| 82 | tab-width: 4 | ||
| 83 | End: | ||
| 84 | */ | ||