[1108] | 1 | /* |
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| 2 | * Copyright (c) 1999-2003 Red Hat, Inc. All rights reserved. |
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| 3 | * |
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| 4 | * This program is free software; you can redistribute it and/or modify |
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| 5 | * it under the terms of the GNU General Public License, version 2, |
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| 6 | * as published by the Free Software Foundation. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | #include <fcntl.h> |
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| 20 | #include <stdio.h> |
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| 21 | #include <string.h> |
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| 22 | #include <unistd.h> |
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| 23 | #include <sys/ioctl.h> |
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| 24 | #include <sys/stat.h> |
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| 25 | #include <sys/sysmacros.h> |
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| 26 | |
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| 27 | int main(int argc, char **argv) |
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| 28 | { |
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| 29 | unsigned char twelve = 12; |
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| 30 | char *type; |
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| 31 | int maj, min, ret = 0, fg = -1; |
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| 32 | struct stat sb; |
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| 33 | |
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| 34 | fstat(0, &sb); |
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| 35 | maj = major(sb.st_rdev); |
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| 36 | min = minor(sb.st_rdev); |
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| 37 | if (maj != 3 && (maj < 136 || maj > 143)) { |
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| 38 | if ((fg = ioctl (0, TIOCLINUX, &twelve)) < 0) { |
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| 39 | type = "serial"; |
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| 40 | ret = 1; |
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| 41 | } else { |
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| 42 | #ifdef __powerpc__ |
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| 43 | int fd; |
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| 44 | char buf[65536]; |
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| 45 | |
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| 46 | fd = open("/proc/tty/drivers",O_RDONLY); |
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| 47 | read(fd, buf, 65535); |
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| 48 | if (strstr(buf,"vioconsole /dev/tty")) { |
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| 49 | type = "vio"; |
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| 50 | ret = 3; |
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| 51 | } else { |
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| 52 | type = "vt"; |
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| 53 | ret = 0; |
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| 54 | } |
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| 55 | #else |
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| 56 | type = "vt"; |
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| 57 | ret = 0; |
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| 58 | #endif |
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| 59 | } |
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| 60 | } else { |
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| 61 | type = "pty"; |
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| 62 | ret = 2; |
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| 63 | } |
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| 64 | if (argc > 1 && !strcmp(argv[1],"fg")) { |
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| 65 | if (fg < 0 || fg != (min-1)) |
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| 66 | return 1; |
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| 67 | return 0; |
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| 68 | } else { |
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| 69 | printf("%s\n",type); |
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| 70 | return ret; |
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| 71 | } |
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| 72 | } |
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