mirror of
https://github.com/inspec/inspec
synced 2024-12-20 10:03:28 +00:00
91 lines
2.7 KiB
Ruby
91 lines
2.7 KiB
Ruby
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# encoding: utf-8
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class Vulcano::Plugins::Backend
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class Stat
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TYPES = {
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socket: 00140000,
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symlink: 00120000,
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file: 00100000,
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block_device: 00060000,
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directory: 00040000,
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character_device: 00020000,
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pipe: 00010000,
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}
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def self.stat(shell_escaped_path, backend)
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return bsd_stat(shell_escaped_path, backend) if backend.os.bsd?
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return linux_stat(shell_escaped_path, backend) if backend.os.unix?
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# all other cases we don't handle
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# TODO: print an error if we get here, as it shouldn't be invoked
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# on non-unix
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{}
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end
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def self.linux_stat(shell_escaped_path, backend)
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res = backend.run_command("stat #{shell_escaped_path} 2>/dev/null --printf '%s\n%f\n%U\n%u\n%G\n%g\n%X\n%Y\n%C'")
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# ignore the exit_code: it is != 0 if selinux labels are not supported
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# on the system.
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fields = res.stdout.split("\n")
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return {} if fields.length != 9
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tmask = fields[1].to_i(16)
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type = TYPES.find { |_, mask| mask & tmask == mask }
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type ||= [:unknown]
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selinux = fields[8]
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selinux = nil if selinux == '?' or selinux == '(null)'
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{
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type: type[0],
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mode: tmask & 00777,
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owner: fields[2],
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group: fields[4],
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mtime: fields[7].to_i,
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size: fields[0].to_i,
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selinux_label: selinux,
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}
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end
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def self.bsd_stat(shell_escaped_path, backend)
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# From stat man page on FreeBSD:
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# z The size of file in bytes (st_size).
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# p File type and permissions (st_mode).
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# u, g User ID and group ID of file's owner (st_uid, st_gid).
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# a, m, c, B
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# The time file was last accessed or modified, or when the
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# inode was last changed, or the birth time of the inode
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# (st_atime, st_mtime, st_ctime, st_birthtime).
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#
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# The special output specifier S may be used to indicate that the
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# output, if applicable, should be in string format. May be used
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# in combination with:
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# ...
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# gu Display group or user name.
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res = backend.run_command(
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"stat -f '%z\n%p\n%Su\n%u\n%Sg\n%g\n%a\n%m' "\
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"#{shell_escaped_path}")
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return {} if res.exit_status != 0
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fields = res.stdout.split("\n")
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return {} if fields.length != 8
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tmask = fields[1].to_i(8)
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type = TYPES.find { |_, mask| mask & tmask == mask }
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type ||= [:unknown]
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{
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type: type[0],
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mode: tmask & 00777,
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owner: fields[2],
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group: fields[4],
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mtime: fields[7].to_i,
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size: fields[0].to_i,
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selinux_label: fields[8],
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}
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end
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end
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end
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