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#compdef mount umount

# This is table-driven: the tables for the values for the different
# file system types are directly below. The tables describing the
# arguments for the `mount' command for different operating systems
# are below these table.

local curcontext="$curcontext" state line ret=1
local args fss deffs=iso9660 descr tmp typeops=-t _nfs_access _nfs_ufs

typeset -A opt_args

if (( ! $+_fs_any )); then

  # These are tables describing the possible values and their
  # arguments for the `-o' option. There is one array per 
  # file system type (only for those that accept more values
  # than those in the `_fs_any' array). The elements of the
  # array are used as arguments to `_values'. The first tables
  # are used by several systems while system specific tables are  
  # (re)defined in a "$OSTYPE" case.

  _fs_any=(
    '(rw)ro[mount file system read-only]'
    '(ro)rw[mount file system read-write]'
  )
  _nfs_access=(
    'acregmin[specify cached file attributes minimum hold time]:cached file attributes minimum hold time:'
    'acregmax[specify cached file attributes maximum hold time]:cached file attributes maximum hold time:'
    'acdirmin[specify cached directory attributes minimum hold time]:cached directory attributes minimum hold time:'
    'acdirmax[specify cached directory attributes maximum hold time]:cached directory attributes maximum hold time:'
    'actimeo[set all attributes'"'"' cache timeout]:set all attributes'"'"' cache timeout:'
  )
  _fs_nfs=(
    'rsize[specify read buffer size]:read buffer size:(8192)'
    'wsize[specify write buffer size]:write buffer size:(8192)'
    '(soft)hard[hang process on server crash (so to say)]'
    '(hard)soft[allow time out on server crash]'
    '(nolock)lock[use locking]'
    '(lock)nolock[don'"'"'t use locking]'
    'timeo[specify initial timeout for UDP]:initial timeout for UDP:'
    'retrans[set number of NFS retransmissions]:number of NFS retransmissions:'
    'retry[specify number of mount failure retries]:mount failure retries:'
    '(fg)bg[retry in the background]'
    '(bg)fg[retry in the foreground]'
    '(nintr)intr[allow operations to be interrupted]'
    '(intr)nintr[prevent operations from being interrupted]'
    '(nfsv3)nfsv2[use NFS version 2]'
    '(nfsv2)nfsv3[use NFS version 3]'
    'proto[specify protocol]:protocol:(udp tcp)'
    'port[specify server port number]:server port number:'
    'proplist[allow property lists]'
    "$_nfs_access[@]"
    'nocto[don'"'"'t get fresh attributes on open]'
    'noac[don'"'"'t set attribute caching]'
  )
  _nfs_ufs=(
    '(nodev)dev[interpret devices]'
    '(dev)nodev[don'"'"'t interpret devices]'
    '(nosuid)suid[use suid and sgib bits]'
    '(suid)nosuid[ignore suid and sgid bits]'
    '(nosync)sync[do I/O synchronously]'
    '(sync)nosync[do all I/O asynchronously]'
    '(noexec)exec[permit execution of binaries]'
    '(exec)noexec[don'"'"'t allow execution of binaries]'
    '(nogrpid)grpid[new file gets group ID of directory]'
    '(grpid)nogrpid[new file gets fsgid of current process]'
  )
  _fs_ufs=(
    'dirty[allow mount even if not cleanly unmounted]'
    "$_nfs_ufs[@]"
  )

  case "$OSTYPE" in
  aix*)
    _fs_any=(
      'bsy[prevent mount over cwd of process]'
      'log[logical volume to log operations]:logical volume name'
      'nodev[cannot open devices from mount]'
      'nosuid[prevent running setuid/setgid from mount]'
      "$_fs_any[@]"
    )
    
    _fs_nfs=(
      '(fg)bg[mount in background]'
      '(bg)fg[mount in foreground]'
      'vers[NFS version]:NFS version:(2 3)'
      'proto[specify transport protocol]'
      'retry[number of retries]:no. of retries'
      'rsize[read buffer size]:read buffer size'
      'wsize[write buffer size]:write buffer size'
      'llock[local locking]'
      'timeo[time-out period]:time-out period'
      'retrans[NFS transmissions]:no. of NFS transmissions'
      'port[IP port no]:IP port no'
      '(hard)soft[error on no server response]'
      '(soft)hard[retry pending server response]'
      '(nointr)intr[allow keyboard interrupts on hard mount]'
      '(intr)nointr[disallow keyboard interrupts on hard mount]'
      'posix[exchange pathconf info on NFS version 2 mount]'
      'secure[use DES encryption]'
      'grpid[inherit group id of parent directory]'
      '(acl)noacl[don'"'"'t use access control lists]'
      '(noacl)acl[Use acces control lists for this mount]'
      'noac[no attribute or directory caching]'
      'shortdev[server lack support for 32-bit device special files]'
      "$_nfs_access[@]"
    )
    ;;
  irix*)
    _fs_any=(
      'nodev[cannot open devices from mount]'
      'nosuid[prevent running setuid/setgid from mount]'
      'grpid[inherit group id of parent directory]'
      "$_fs_any[@]"
    )
    
    _fs_efs=(
      'raw[raw device pathname to filesystem]:raw device pathname:->devordir'
      '(nofsck)fsck[fsck should check this filesystem by default]'
      '(fsck)nofsck[fsck should not check this filesystem by default]'
      '(noquota)quota[turn on quotas]'
      '(quota)noquota[turn off quotas]'
      'lbsize[no of bytes transferred in each operation]:bytes'
    )
    
    _fs_iso9660=(
      'setx[set execute permissions on every file]'
      'notranslate[don'\''t translate filenames]'
      'cache[no of 2048 blocks for directory cache]:cache size'
      'noext[ignore rock ridge extensions]'
      '(nosusp)susp[enable system use sharing protocol]'
      '(susp)nosusp[disable system use sharing protocol]'
      '(norrip)rrip[enable rock ridge extensions]'
      '(rrip)norrip[disable rock ridge extensions]'
      'nmconv[specify filename translation]:filename translation:(c l m)'
    )
      
    _fs_nfs=(
      '(fg)bg[mount in background]'
      '(bg)fg[mount in foreground]'
      'retry[number of retries]:no. of retries'
      'rsize[read buffer size]:read buffer size'
      'wsize[write buffer size]:write buffer size'
      'timeo[time-out period]:time-out period'
      'retrans[NFS transmissions]:no. of NFS transmissions'
      'port[IP port no]:IP port no'
      '(hard)soft[error on no server response]'
      '(soft)hard[retry pending server response]'
      'intr[allow keyboard interrupts on hard mount]'
      'noac[no attribute caching]'
      'private[use local locking and do not flush on last close]'
      'symttl[time-to-live of cached symbolic links]:seconds'
      "$_nfs_access[@]"
    )
    
    _fs_cachefs=(
      'backfstype[type of the back file system]:back file system type:(efs nfs iso9660 dos hfs cachefs)'
      'backpath[specify back file system location]:back file system location:_files -/'
      'cachedir[name of the cache directory]:name of cache directory:_files -/'
      'cacheid[cache ID]:cache ID'
      '(write-around)non-shared[cache not shared]'
      '(non-shared)write-around[cache shared]'
      'noconst[disable consistency checking]'
      'local-access[check permissions locally]'
      'purge[purge any cached information]'
      "$_nfs_access[@]"
    ) 
    
    ;;  
  solaris*)
    _fs_s5fs=(
      'remount[remount file system]'
      '(suid)nosuid[ignore suid and sgid bits]'
      '(nosuid)suid[use suid and sgib bits]'
    )
    _fs_ufs=(
      '(atime)noatime[don'"'"'t update access time]'
      'f[fake an /etc/mnttab entry]'
      'm[don'"'"'t make an /etc/mnttab entry]'
      '(noforcedirectio)forcedirectio[do I/O synchronously]'
      '(forcedirectio)noforcedirectio[do all I/O asynchronously]'
      '(nointr)intr[allow operations to be interrupted]'
      '(intr)nointr[prevent operations from being interrupted]'
      '(nolargefiles)largefiles[don'"'"' restrict file size]'
      '(largefiles)nolargefiles[restrict file size]'
      '(nologging)logging[log transactions]'
      '(logging)nologging[log transactions]'
      'onerror[action to recover from error]:action(panic lock umout)'
      'quota[turn on quotas]'
      '(ro rw)rq[mount file system read-write with quotas]'
      "$_fs_s5fs[@]"
    )
    _fs_tmpfs=(
      'size[set file system size]:size:'
    )
    _fs_pcfs=(
      '(nofoldcase)foldcase[force filenames to lowercase]'
      '(foldcase)nofoldcase[don'"'"'t force filenames to lowercase]'
    )
    _fs_hsfs=(
      'nrr[no rock ridge]'
      'notraildot[no trail dot when no extension]'
      'nomaplcase[don'"'"'t force lowercase]'
      'nosiud[ignore suid and sgid bits]'
    )
    _fs_nfs=(
      '(fg)bg[retry in the background]'
      '(bg)fg[retry in the foreground]'
      '(nogrpid)grpid[new file gets group ID of directory]'
      '(grpid)nogrpid[new file gets fsgid of current process]'
      '(nointr)intr[allow operations to be interrupted]'
      '(intr)nointr[prevent operations from being interrupted]'
      '(sec secure)kerberos[use kerberos authentication]'
      'noac[no attribute caching]'
      'port[server IP port number]:port:'
      'posix[posix sematics]'
      'proto[specify protocol]:protocol:'\("$(grep -v '^#' /etc/netconfig 2> /dev/null | cut -d ' ' -f 1)"\)
      'public[force public file handle]'
      '(noquota)quota[enable quotas]'
      '(quota)noquota[disable quotas]'
      'timeo[specify initial timeout for UDP]:initial timeout for UDP:'
      'retrans[set number of NFS retransmissions]:number of NFS retransmissions:(5)'
      'retry[specify number of mount failure retries]:mount failure retries:(10000)'
      'rsize[specify read buffer size]:read buffer size:(8192)'
      'wsize[specify write buffer size]:write buffer size:(8192)'
      '(kerberos secure)sec[set the security mode]:security mode:(sys dh krb4 none)'
      '(kerberos sec)secure[use Diffie-Hellman public key system]'
      'vers[set NFS vesion number]:NFS version number:(2 3)'
      "$_nfs_access[@]"
      "$_fs_s5fs[@]"
    ) 
    _fs_cachefs=(
      'backfstype[type of the back file system]:back file system type:(nfs hsfs)'
      'backpath[specify back file system location]:back file system location:_files -/'
      'cacheid[specify a cache ID]:cache ID:'
      'local-access[check permissions locally]'
      'noconst[disable cache consistency checking]'
      'purge[purge any cached information]'
      '(suid)nosuid[ignore setuid and setgid bits]'
      '(nosuid)suid[use setuid and setgid bits]'
      '(write-around)non-shared[purge cache on writes]'
      '(non-shared)write-around[keep file in cache on writes]'
      "$_nfs_access[@]"
    )
    ;;
  osf*)
    _fs_advfs=(
      '(ro rw)rq[mount file system read-write]'
      'dual[allow mount even if same domain ID as already mounted domain]'
      'sync[do I/O synchronously]'
    )
    _fs_cdfs=(
      '(nodefperm)defperm[ignore permission bits]'
      '(defperm)defperm[use permission bits]'
      'noversion[strip off version extension]'
      'rrip[use RRIP extensions]'
    )
    _fs_nfs=(
      "$_nfs_ufs[@]"
      "$_fs_nfs[@]"
    )
    ;;
  linux*)
    _fs_any=(
      '(sync)async[do all I/O asynchronously]'
      '(noatime)atime[update access time]'
      '(noauto)auto[can be mounted with -a]'
      '(rw suid dev exec auto nouser async)defaults[use default options]'
      '(nodev)dev[interpret devices]'
      '(noexec)exec[permit execution of binaries]'
      '(atime)noatime[don'"'"'t update access time]'
      '(auto)noauto[can only be mounted explicitly]'
      '(dev)nodev[don'"'"'t interpret devices]'
      '(exec)noexec[don'"'"'t allow execution of binaries]'
      '(suid)nosuid[ignore suid and sgid bits]'
      '(user)nouser[can only be mounted by root]'
      'remount[mount already mounted file system]'
      '(rw)ro[mount file system read-only]'
      '(ro)rw[mount file system read-write]'
      '(nosuid)suid[use suid and sgib bits]'
      '(async)sync[do I/O synchronously]'
      '(nouser noexec nosuid nodev)user[allow normal users to mount]'
    )
    _fs_affs=(
      'uid[set owner of root]:user ID:'
      'gid[set group of root]:group ID:'
      'setuid[set owner of all files]:user ID:'
      'setgid[set group of all files]:group ID:'
      'mode[set file permissions]:file permission bits:'
      'protect[don'"'"'t allow changes to permissions]'
      'usemp[set owner of root to owner of mount point]'
      'verbose[print message per mount]'
      'prefix[prefix before volume name (link)]:prefix string:'
      'volume[prefix before '"'"'/'"'"' (symlink)]:prefix string:'
      'reserved[set number of unused blocks at start of device]:number of unused blocks:'
      'root[specify location of the root block]:root block location:'
      'bs[specify block size]:block size:(512 1024 2048 4192)'
    )
    _fs_ext2=(
      '(minixdf)bsddf[select bsddf behavior]'
      '(bsddf)minixdf[select bsddf behavior]'
      '(nocheck)check[set checking level]::checking level:((normal\:check\ inode\ and\ block\ bitmaps\ on\ mount strict\:check\ on block\ deallocation none\:no\ checking))'
      'errors[specify behavior on error]:error behavior:((continue\:ignore\ errors remount-ro\:remount\ file\ system\ read-only panic\:panic\ and\ halt\ system))'
      '(nogrpid bsdgroups sysvgroups)grpid[new file gets group ID of directory]'
      '(grpid nogrpid sysvgroups)bsdgroups[new file gets group ID of directory]'
      '(grpid bsdgroups sysvgroups)nogrpid[new file gets fsgid of current process]'
      '(grpid bsdgroups nogrpid)sysvgroups[new file gets fsgid of current process]'
      'resgid[specify access to reserved space (group ID)]:group ID:'
      'resuid[specify access to reserved space (user ID)]:user ID:'
      'sb[specify super block number]:super block number:'
    )
    _fs_fat=(
      'blocksize[specify block size]:block size:(512 1024)'
      'uid[specify user ID of all files]:user ID:'
      'gid[specify group ID of all files]:group ID:'
      'umask[specify umask]:umask value (octal):'
      'check[specify checking level]:checking level:((relaxed\:accept\ upper\ and\ lower\ case,\ truncate\ long\ name normal\:like\ '"'\`'"'relaxed'"\\'"',\ but\ reject\ special\ characters strict\:like\ '"'\`'"'normal'"\\'"',\ but\ no\ long\ parts))'
      'conf[specify CR/NL conversion]:CR/NL conversion mode:((binary\:no\ translation text\:conversion\ on\ all\ files auto\:perform\ translation\ on\ file\ without\ binary\ extension))'
      'debug[debug mode]'
      'fat[specify fat type]:fat type (bit):(12 16)'
      'quiet[quiet mode]'
    )
    _fs_msdos=( "$_fs_fat[@]" )
    _fs_umsdos=( "$_fs_fat[@]" )
    _fs_vfat=( "$_fs_fat[@]"
      'uni_xlate[translate unicode to escaped sequences]'
      'posix[allow file names only differing in case]'
      'nonumtail[try short name before number extension]'
    )
    _fs_hpfs=(
      'uid[specify user ID of all files]:user ID:'
      'gid[specify group ID of all files]:group ID:'
      'umask[specify umask]:umask value (octal):'
      'case[specify file name conversion]:file name conversion:((lower\:convert\ to\ lower\ case asis\:no\ conversion))'
      'conv[specify CR elimination]:CR elimination:((binary\:no\ elimination test\:delete\ CRs\ \(e.g.\ before\ NL\) auto\:sometimes\ yes,\ sometimes\ not))'
      'nocheck[don'"'"'t abort mount on consistency check failure]'
    )
    _fs_iso9660=(
      'norock[disable Rock Ridge extensions]'
      'check[specify file name conversion]:file name conversion:((relaxed\:convert\ to\ lower\ case\ before\ lookup strict\:no\ conversion))'
      'uid[specify user ID of all files]:user ID:'
      'gid[specify group ID of all files]:group ID:'
      'map[specify non-Rock Ridge name conversion]:file name conversion:((normal\:map\ upper\ to\ lower,\ ignore\ \;1,\ map\ \;\ to\ . off\:no\ conversion))'
      'mode[specify permissions]:file access permissions:'
      'unhide[show hidden and associated files]'
      'block[specify block size]:block size:(512 1024 2048)'
      'cruft[ignore high bits of file length]'
    )
    _fs_smbfs=( "$_fs_nfs[@]" )
    _fs_udf=(
      'uid[specify user ID of all files]:user ID:'
      'gid[specify group ID of all files]:group ID:'
      'umask[specify umask]:umask value (octal):'
      'unhide[show hidden and associated files]'
      'undelete[show deleted files]'
      'bs[set the block size]:block size:2048'
      'novrs[skip volume sequence recognition]'
      'session[set the CDROM session]:session:'
      'anchor[override standard anchor location]:anchor location:256'
      'lastblock[set the last block of the file system]:last block:'
    )
    _fs_ufs=(
      'ufstype[set ufs type]:ufs type:(old 44bsd sun sunx86 nextstep nextstep-cd openstep)'
      'onerror[set behaviour on error]:behaviour on error:(panic lock umount repair)'
    )
    ;;
  esac
fi

if [[ "${words[1]:t}" = mount ]]; then

  # Here are the tests and tables for the arguments and options for
  # the `mount' program. The `fss' array has to be set to the names
  # of the file system types understood on this system.
  # This should also set the `deffs' parameter if the default file
  # system type is not `iso9660' (it should be set to the name of
  # the default file system type), and set 'typeops' to the mount 
  # option for file system type selection when it is not '-t'.

  case "$OSTYPE" in
  aix*)
    args=( -s
      '-a[mount all filesystems in /etc/fstab]'
      '-f[forced mount]'
      '-n[remote node]:remote node:_hosts'
      '-p[mount as removable file system]'
      '-r[mount read-only]'
      '-t[specify file system type]:file system type:->fstype'
      '-o[specify file system options]:file system option:->fsopt'
      '-v[filesystem defined by /etc/vfs]:VfsName'
      ':dev or dir:->devordir'
      ':mount point:_files -/'
    )
    fss=( jfs nfs cdrfs )
    deffs=jfs
    ;;
  irix*)
    args=( -s
      '-a[mount all filesystems in /etc/fstab]'
      '-b[mount all filesystems in /etc/fstab except those listed]:list of directories:_files -/ -S,'
      '-c[check any dirty filesystems before mounting]'
      '-f[fake a new /etc/mtab entry, but don'\''t mount any filesystems]'
      '-h[mount all filesystems associated with host]:hostnames:_hosts'
      '-n[mount filesystem without making entry in /etc/mtab]'
      '-o[specify file system options]:file system option:->fsopt'
      '-p[print list of mounted filesystems in format suitable for /etc/fstab]'
      '-r[mount read-only]'
      '-t[specify file system type]:file system type:->fstype'
      '-v[verbose]'
      '-M[use alternate mtab]:alternate mtab:_files'
      '-P[with -p, prepend prefix to paths]:prefix'
    )
    fss=( efs proc fd nfs iso9660 dos hfs cachefs )
    deffs=efs
    ;;
  linux*)
    args=( -s
      '-h[show help]'
      '-V[show version]'
      '-v[verbose mode]'
      '(-o)-a[mount all filesystems in fstab]'
      '-F[fork off one child per device]'
      '-f[fake mount]'
      '-n[don'"'"'t write /etc/mtab]'
      '-s[tolerate sloppy mount options]'
      '-r[mount read-only]'
      '-w[mount read/write]'
      '-t[specify file system type]:file system type:->fstype'
      '-o[specify file system options]:file system option:->fsopt'
      ':dev or dir:->devordir'
      ':mount point:_files -/'
    )
    fss=( minix ext ext2 xiafs hpfs msdos umsdos vfat proc nfs iso9660
          smbfs ncpfs affs ufs romfs sysv adfs autofs coda devpts efs
          hfs ntfs qnx4 smbfs udf )
    [[ -r /proc/filesystems ]] &&
        fss=( ${$(</proc/filesystems)#nodev} )
    ;;
  osf*)
    args=( -s
      '(-o)-a[mount all filesystems in fstab]'
      '-d[mount even if not unmounted]'
      '-e[list all mount points]'
      '-f[fake mount]'
      '-l[display values of all file system options]'
      '-t[specify file system type]:file system type:->fstype'
      '-o[specify file system options]:file system option:->fsopt'
      '-u[remount file system]'
      '-r[mount read-only]'
      '-w[mount read/write]'
      '-v[verbose]'
      ':dev or dir:->devordir'
      ':mount point:_files -/'
    )
    fss=( advfs ufs nfs mfs cdfs )
    deffs=cdfs
    ;;
  solaris*)
    args=( -s
      '(-p -v)-a[mount all filesystems in fstab]'
      '(-p -v)-F[specify file system type]:file system type:->fstype'
      '(-a -v)-p[print mounted file systems]'
      '(-p -a)-v[print mounted file systems verbosely]'
      '(-p -v)-V[fake mount]'
      '(-p -v)-m[don'"'"'t write /etc/mnttab]'
      '(-p -v)-g[mount globally]'
      '(-p -v)-o[specify file system options]:file system option:->fsopt'
      '(-p -v)-O[overlay mount]'
      '(-p -v)-r[mount read-only]'
      ':dev or dir:->devordir'
      ':mount point:_files -/'
    )
    fss=( ufs nfs hsfs s5fs pcfs cachefs tmpfs )
    deffs=hsfs
    typeops=-F
    ;;
  *)
    # Default for all other systems. Dunno.

    args=( -s
      '(-o)-a[mount all filesystems in fstab]'
      '-t[specify file system type]:file system type:->fstype'
      '-o[specify file system options]:file system option:->fsopt'
      '-f[fake mount]'
      ':dev or dir:->devordir'
      ':mount point:_files -/'
    )
    fss=( ufs )
    deffs=ufs
    ;;
  esac

  _arguments -C "$args[@]" && ret=0

else

  # Completion for umount.

  case "$OSTYPE" in
    aix*)
      args=(
	'-a[unmount all mounted file systems]'
	'-f[force unmount]'
	'-n[remote node]:remote node:_hosts'
	'-t[specify file system type]:file system type:->fstype'
	'*:dev or dir:->udevordir'
      )
    ;;
    irix*)
      args=(
	'-a[unmount all mounted file systems]'
	'-b[unmount all filesystems in /etc/fstab except those listed]:list of directories:_files -/ -S,'
	'-h[unmount all filesystems associated with host]:hostnames:_hosts'
	'-k[kill all processes with files open on filesystems before unmounting]'
	'-t[unmount all filesystems of specified type]:file system type:->fstype'
	'-v[verbose]'
      )
    ;;  
    *)
      args=( \
	'-h[show help]'
	'-V[show version]'
	'-v[verbose mode]'
	'-n[don'"'"'t write /etc/mtab]'
	'-r[remount read-only on failure]'
	'-a[unmount all file systems from /etc/mtab]'
	'-t[specify file system type]:file system type:->fstype'
	'*:dev or dir:->udevordir'
      )
    ;;
  esac

  _arguments -C -s "$args[@]" && ret=0

fi

case "$state" in
fstype)
  compset -P '*,'

  _wanted types expl 'file system type' \
      compadd "$expl[@]" -qS, -M 'L:|no=' - "$fss[@]" && ret=0
  ;;
fsopt)
  _tags options || return 1

  eval 'tmp=(' '"$_fs_'${(s:,:)^${opt_args[$typeops]:-${deffs}}}'[@]"' ')'
  tmp=( "$_fs_any[@]" "${(@)tmp:#}" )
  _values -s , 'file system options' "$tmp[@]" && ret=0
  ;;
devordir)
  if (( $+opt_args[-a] )); then
    _message "no device or directory with option \`-a'"
  else
    _alternative \
        'devices:device:compadd /dev/\*' \
	'directories:mount point:_files -/' && ret=0
  fi
  ;;
udevordir)
  if (( $+opt_args[-a] )); then
    _message "no device or directory with option \`-a'"
  else
    local dev_tmp mp_tmp

    tmp=( "${(@f)$(< /etc/mtab)}" )
    dev_tmp=( "${(@)${(@)tmp%% *}:#none}" )
    mp_tmp=( "${(@)${(@)tmp#* }%% *}" )

    _alternative \
        'devices:device:compadd - $dev_tmp[@]' \
	'directories:mount point:compadd - $mp_tmp[@]' && ret=0
  fi
  ;;
esac

return ret