diff options
Diffstat (limited to 'perl-install/devices.pm')
-rw-r--r-- | perl-install/devices.pm | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/perl-install/devices.pm b/perl-install/devices.pm deleted file mode 100644 index b7f3a54d9..000000000 --- a/perl-install/devices.pm +++ /dev/null @@ -1,109 +0,0 @@ -package devices; - -use diagnostics; -use strict; - -use common qw(:system :file); -use run_program; -use log; -use c; - -1; - - -sub size($) { - local *F; - sysopen F, $_[0], 0 or log::l("open $_[0]: $!"), return 0; - - my $valid_offset = sub { sysseek(F, $_[0], 0) && sysread(F, my $a, 1) }; - - #- first try getting the size nicely - my $size = 0; - ioctl(F, c::BLKGETSIZE(), $size) and return unpack("i", $size) * $common::SECTORSIZE; - - #- sad it didn't work, well searching the size using the dichotomy algorithm! - my $low = 0; - my ($high, $mid); - - #- first find n where 2^n < size <= 2^n+1 - for ($high = 1; $high > 0 && &$valid_offset($high); $high *= 2) { $low = $high; } - - while ($low < $high - 1) { - $mid = int ($low + $high) / 2; - &$valid_offset($mid) ? $low : $high = $mid; - } - $low + 1; -} - -sub make($) { - local $_ = my $file = $_[0]; - my ($type, $major, $minor); - my $prefix = ''; - - if (m,^(.*/(?:dev|tmp))/(.*),) { - $_ = $2; - } else { - $file = "$prefix/dev/$_"; - -e $file or $file = "$prefix/tmp/$_"; - } - -e $file and return $file; #- assume nobody takes fun at creating files named as device - - if (/^sd(.)(\d{0,2})/) { - $type = c::S_IFBLK(); - $major = 8; - $minor = 16 * (ord($1) - ord('a')) + ($2 || 0); - } elsif (/^hd(.)(\d{0,2})/) { - $type = c::S_IFBLK(); - ($major, $minor) = - @{ $ {{'a' => [3, 0], 'b' => [3, 64], - 'c' => [22,0], 'd' => [22,64], - 'e' => [33,0], 'f' => [33,64], - 'g' => [34,0], 'h' => [34,64], - }}{$1} or die "unknown device $_" }; - $minor += $2 || 0; - } elsif (/^ram(.*)/) { - $type = c::S_IFBLK(); - $major = 1; - $minor = $1 eq '' ? 1 : $1; - } elsif (m|^rd/c(\d+)d(\d+)(p(\d+))?|) { - # dac 960 "/rd/cXdXXpX" - $type = c::S_IFBLK(); - $major = 48 + $1; - $minor = 8 * $2 + $4; - } elsif (m|ida/c(\d+)d(\d+)(p(\d+))?|) { - # Compaq Smart Array "ida/c0d0{p1}" - $type = c::S_IFBLK(); - $major = 72 + $1; - $minor = 16 * $2 + ($4 || 0); - } else { - ($type, $major, $minor) = - @{ $ {{"aztcd" => [ c::S_IFBLK(), 29, 0 ], - "bpcd" => [ c::S_IFBLK(), 41, 0 ], - "cdu31a" => [ c::S_IFBLK(), 15, 0 ], - "cdu535" => [ c::S_IFBLK(), 24, 0 ], - "cm206cd" => [ c::S_IFBLK(), 32, 0 ], - "tty" => [ c::S_IFCHR(), 5, 0 ], - "fd0" => [ c::S_IFBLK(), 2, 0 ], - "fd1" => [ c::S_IFBLK(), 2, 1 ], - "gscd" => [ c::S_IFBLK(), 16, 0 ], - "lp0" => [ c::S_IFCHR(), 6, 0 ], - "lp1" => [ c::S_IFCHR(), 6, 1 ], - "lp2" => [ c::S_IFCHR(), 6, 2 ], - "mcd" => [ c::S_IFBLK(), 23, 0 ], - "mcdx" => [ c::S_IFBLK(), 20, 0 ], - "nst0" => [ c::S_IFCHR(), 9, 128 ], - "optcd" => [ c::S_IFBLK(), 17, 0 ], - "sbpcd" => [ c::S_IFBLK(), 25, 0 ], - "scd0" => [ c::S_IFBLK(), 11, 0 ], - "scd1" => [ c::S_IFBLK(), 11, 1 ], - "sjcd" => [ c::S_IFBLK(), 18, 0 ], - }}{$_} or die "unknown device $_" }; - } - - #- make a directory for this inode if needed. - mkdir dirname($file), 0755; - - syscall_('mknod', $file, $type | 0600, makedev($major, $minor)) or die "mknod failed (dev $_): $!"; - - $file; -} |