Annotation of embedaddon/dhcdrop/install-sh, revision 1.1.1.1
1.1 misho 1: #!/bin/sh
2: # install - install a program, script, or datafile
3:
4: scriptversion=2006-12-25.00
5:
6: # This originates from X11R5 (mit/util/scripts/install.sh), which was
7: # later released in X11R6 (xc/config/util/install.sh) with the
8: # following copyright and license.
9: #
10: # Copyright (C) 1994 X Consortium
11: #
12: # Permission is hereby granted, free of charge, to any person obtaining a copy
13: # of this software and associated documentation files (the "Software"), to
14: # deal in the Software without restriction, including without limitation the
15: # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
16: # sell copies of the Software, and to permit persons to whom the Software is
17: # furnished to do so, subject to the following conditions:
18: #
19: # The above copyright notice and this permission notice shall be included in
20: # all copies or substantial portions of the Software.
21: #
22: # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23: # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24: # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25: # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
26: # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
27: # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28: #
29: # Except as contained in this notice, the name of the X Consortium shall not
30: # be used in advertising or otherwise to promote the sale, use or other deal-
31: # ings in this Software without prior written authorization from the X Consor-
32: # tium.
33: #
34: #
35: # FSF changes to this file are in the public domain.
36: #
37: # Calling this script install-sh is preferred over install.sh, to prevent
38: # `make' implicit rules from creating a file called install from it
39: # when there is no Makefile.
40: #
41: # This script is compatible with the BSD install script, but was written
42: # from scratch.
43:
44: nl='
45: '
46: IFS=" "" $nl"
47:
48: # set DOITPROG to echo to test this script
49:
50: # Don't use :- since 4.3BSD and earlier shells don't like it.
51: doit=${DOITPROG-}
52: if test -z "$doit"; then
53: doit_exec=exec
54: else
55: doit_exec=$doit
56: fi
57:
58: # Put in absolute file names if you don't have them in your path;
59: # or use environment vars.
60:
61: chgrpprog=${CHGRPPROG-chgrp}
62: chmodprog=${CHMODPROG-chmod}
63: chownprog=${CHOWNPROG-chown}
64: cmpprog=${CMPPROG-cmp}
65: cpprog=${CPPROG-cp}
66: mkdirprog=${MKDIRPROG-mkdir}
67: mvprog=${MVPROG-mv}
68: rmprog=${RMPROG-rm}
69: stripprog=${STRIPPROG-strip}
70:
71: posix_glob='?'
72: initialize_posix_glob='
73: test "$posix_glob" != "?" || {
74: if (set -f) 2>/dev/null; then
75: posix_glob=
76: else
77: posix_glob=:
78: fi
79: }
80: '
81:
82: posix_mkdir=
83:
84: # Desired mode of installed file.
85: mode=0755
86:
87: chgrpcmd=
88: chmodcmd=$chmodprog
89: chowncmd=
90: mvcmd=$mvprog
91: rmcmd="$rmprog -f"
92: stripcmd=
93:
94: src=
95: dst=
96: dir_arg=
97: dst_arg=
98:
99: copy_on_change=false
100: no_target_directory=
101:
102: usage="\
103: Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
104: or: $0 [OPTION]... SRCFILES... DIRECTORY
105: or: $0 [OPTION]... -t DIRECTORY SRCFILES...
106: or: $0 [OPTION]... -d DIRECTORIES...
107:
108: In the 1st form, copy SRCFILE to DSTFILE.
109: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
110: In the 4th, create DIRECTORIES.
111:
112: Options:
113: --help display this help and exit.
114: --version display version info and exit.
115:
116: -c (ignored)
117: -C install only if different (preserve the last data modification time)
118: -d create directories instead of installing files.
119: -g GROUP $chgrpprog installed files to GROUP.
120: -m MODE $chmodprog installed files to MODE.
121: -o USER $chownprog installed files to USER.
122: -s $stripprog installed files.
123: -t DIRECTORY install into DIRECTORY.
124: -T report an error if DSTFILE is a directory.
125:
126: Environment variables override the default commands:
127: CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
128: RMPROG STRIPPROG
129: "
130:
131: while test $# -ne 0; do
132: case $1 in
133: -c) ;;
134:
135: -C) copy_on_change=true;;
136:
137: -d) dir_arg=true;;
138:
139: -g) chgrpcmd="$chgrpprog $2"
140: shift;;
141:
142: --help) echo "$usage"; exit $?;;
143:
144: -m) mode=$2
145: case $mode in
146: *' '* | *' '* | *'
147: '* | *'*'* | *'?'* | *'['*)
148: echo "$0: invalid mode: $mode" >&2
149: exit 1;;
150: esac
151: shift;;
152:
153: -o) chowncmd="$chownprog $2"
154: shift;;
155:
156: -s) stripcmd=$stripprog;;
157:
158: -t) dst_arg=$2
159: shift;;
160:
161: -T) no_target_directory=true;;
162:
163: --version) echo "$0 $scriptversion"; exit $?;;
164:
165: --) shift
166: break;;
167:
168: -*) echo "$0: invalid option: $1" >&2
169: exit 1;;
170:
171: *) break;;
172: esac
173: shift
174: done
175:
176: if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
177: # When -d is used, all remaining arguments are directories to create.
178: # When -t is used, the destination is already specified.
179: # Otherwise, the last argument is the destination. Remove it from $@.
180: for arg
181: do
182: if test -n "$dst_arg"; then
183: # $@ is not empty: it contains at least $arg.
184: set fnord "$@" "$dst_arg"
185: shift # fnord
186: fi
187: shift # arg
188: dst_arg=$arg
189: done
190: fi
191:
192: if test $# -eq 0; then
193: if test -z "$dir_arg"; then
194: echo "$0: no input file specified." >&2
195: exit 1
196: fi
197: # It's OK to call `install-sh -d' without argument.
198: # This can happen when creating conditional directories.
199: exit 0
200: fi
201:
202: if test -z "$dir_arg"; then
203: trap '(exit $?); exit' 1 2 13 15
204:
205: # Set umask so as not to create temps with too-generous modes.
206: # However, 'strip' requires both read and write access to temps.
207: case $mode in
208: # Optimize common cases.
209: *644) cp_umask=133;;
210: *755) cp_umask=22;;
211:
212: *[0-7])
213: if test -z "$stripcmd"; then
214: u_plus_rw=
215: else
216: u_plus_rw='% 200'
217: fi
218: cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
219: *)
220: if test -z "$stripcmd"; then
221: u_plus_rw=
222: else
223: u_plus_rw=,u+rw
224: fi
225: cp_umask=$mode$u_plus_rw;;
226: esac
227: fi
228:
229: for src
230: do
231: # Protect names starting with `-'.
232: case $src in
233: -*) src=./$src;;
234: esac
235:
236: if test -n "$dir_arg"; then
237: dst=$src
238: dstdir=$dst
239: test -d "$dstdir"
240: dstdir_status=$?
241: else
242:
243: # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
244: # might cause directories to be created, which would be especially bad
245: # if $src (and thus $dsttmp) contains '*'.
246: if test ! -f "$src" && test ! -d "$src"; then
247: echo "$0: $src does not exist." >&2
248: exit 1
249: fi
250:
251: if test -z "$dst_arg"; then
252: echo "$0: no destination specified." >&2
253: exit 1
254: fi
255:
256: dst=$dst_arg
257: # Protect names starting with `-'.
258: case $dst in
259: -*) dst=./$dst;;
260: esac
261:
262: # If destination is a directory, append the input filename; won't work
263: # if double slashes aren't ignored.
264: if test -d "$dst"; then
265: if test -n "$no_target_directory"; then
266: echo "$0: $dst_arg: Is a directory" >&2
267: exit 1
268: fi
269: dstdir=$dst
270: dst=$dstdir/`basename "$src"`
271: dstdir_status=0
272: else
273: # Prefer dirname, but fall back on a substitute if dirname fails.
274: dstdir=`
275: (dirname "$dst") 2>/dev/null ||
276: expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
277: X"$dst" : 'X\(//\)[^/]' \| \
278: X"$dst" : 'X\(//\)$' \| \
279: X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
280: echo X"$dst" |
281: sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
282: s//\1/
283: q
284: }
285: /^X\(\/\/\)[^/].*/{
286: s//\1/
287: q
288: }
289: /^X\(\/\/\)$/{
290: s//\1/
291: q
292: }
293: /^X\(\/\).*/{
294: s//\1/
295: q
296: }
297: s/.*/./; q'
298: `
299:
300: test -d "$dstdir"
301: dstdir_status=$?
302: fi
303: fi
304:
305: obsolete_mkdir_used=false
306:
307: if test $dstdir_status != 0; then
308: case $posix_mkdir in
309: '')
310: # Create intermediate dirs using mode 755 as modified by the umask.
311: # This is like FreeBSD 'install' as of 1997-10-28.
312: umask=`umask`
313: case $stripcmd.$umask in
314: # Optimize common cases.
315: *[2367][2367]) mkdir_umask=$umask;;
316: .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
317:
318: *[0-7])
319: mkdir_umask=`expr $umask + 22 \
320: - $umask % 100 % 40 + $umask % 20 \
321: - $umask % 10 % 4 + $umask % 2
322: `;;
323: *) mkdir_umask=$umask,go-w;;
324: esac
325:
326: # With -d, create the new directory with the user-specified mode.
327: # Otherwise, rely on $mkdir_umask.
328: if test -n "$dir_arg"; then
329: mkdir_mode=-m$mode
330: else
331: mkdir_mode=
332: fi
333:
334: posix_mkdir=false
335: case $umask in
336: *[123567][0-7][0-7])
337: # POSIX mkdir -p sets u+wx bits regardless of umask, which
338: # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
339: ;;
340: *)
341: tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
342: trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
343:
344: if (umask $mkdir_umask &&
345: exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
346: then
347: if test -z "$dir_arg" || {
348: # Check for POSIX incompatibilities with -m.
349: # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
350: # other-writeable bit of parent directory when it shouldn't.
351: # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
352: ls_ld_tmpdir=`ls -ld "$tmpdir"`
353: case $ls_ld_tmpdir in
354: d????-?r-*) different_mode=700;;
355: d????-?--*) different_mode=755;;
356: *) false;;
357: esac &&
358: $mkdirprog -m$different_mode -p -- "$tmpdir" && {
359: ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
360: test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
361: }
362: }
363: then posix_mkdir=:
364: fi
365: rmdir "$tmpdir/d" "$tmpdir"
366: else
367: # Remove any dirs left behind by ancient mkdir implementations.
368: rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
369: fi
370: trap '' 0;;
371: esac;;
372: esac
373:
374: if
375: $posix_mkdir && (
376: umask $mkdir_umask &&
377: $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
378: )
379: then :
380: else
381:
382: # The umask is ridiculous, or mkdir does not conform to POSIX,
383: # or it failed possibly due to a race condition. Create the
384: # directory the slow way, step by step, checking for races as we go.
385:
386: case $dstdir in
387: /*) prefix='/';;
388: -*) prefix='./';;
389: *) prefix='';;
390: esac
391:
392: eval "$initialize_posix_glob"
393:
394: oIFS=$IFS
395: IFS=/
396: $posix_glob set -f
397: set fnord $dstdir
398: shift
399: $posix_glob set +f
400: IFS=$oIFS
401:
402: prefixes=
403:
404: for d
405: do
406: test -z "$d" && continue
407:
408: prefix=$prefix$d
409: if test -d "$prefix"; then
410: prefixes=
411: else
412: if $posix_mkdir; then
413: (umask=$mkdir_umask &&
414: $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
415: # Don't fail if two instances are running concurrently.
416: test -d "$prefix" || exit 1
417: else
418: case $prefix in
419: *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
420: *) qprefix=$prefix;;
421: esac
422: prefixes="$prefixes '$qprefix'"
423: fi
424: fi
425: prefix=$prefix/
426: done
427:
428: if test -n "$prefixes"; then
429: # Don't fail if two instances are running concurrently.
430: (umask $mkdir_umask &&
431: eval "\$doit_exec \$mkdirprog $prefixes") ||
432: test -d "$dstdir" || exit 1
433: obsolete_mkdir_used=true
434: fi
435: fi
436: fi
437:
438: if test -n "$dir_arg"; then
439: { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
440: { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
441: { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
442: test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
443: else
444:
445: # Make a couple of temp file names in the proper directory.
446: dsttmp=$dstdir/_inst.$$_
447: rmtmp=$dstdir/_rm.$$_
448:
449: # Trap to clean up those temp files at exit.
450: trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
451:
452: # Copy the file name to the temp name.
453: (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
454:
455: # and set any options; do chmod last to preserve setuid bits.
456: #
457: # If any of these fail, we abort the whole thing. If we want to
458: # ignore errors from any of these, just make sure not to ignore
459: # errors from the above "$doit $cpprog $src $dsttmp" command.
460: #
461: { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
462: { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
463: { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
464: { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
465:
466: # If -C, don't bother to copy if it wouldn't change the file.
467: if $copy_on_change &&
468: old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
469: new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
470:
471: eval "$initialize_posix_glob" &&
472: $posix_glob set -f &&
473: set X $old && old=:$2:$4:$5:$6 &&
474: set X $new && new=:$2:$4:$5:$6 &&
475: $posix_glob set +f &&
476:
477: test "$old" = "$new" &&
478: $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
479: then
480: rm -f "$dsttmp"
481: else
482: # Rename the file to the real destination.
483: $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
484:
485: # The rename failed, perhaps because mv can't rename something else
486: # to itself, or perhaps because mv is so ancient that it does not
487: # support -f.
488: {
489: # Now remove or move aside any old file at destination location.
490: # We try this two ways since rm can't unlink itself on some
491: # systems and the destination file might be busy for other
492: # reasons. In this case, the final cleanup might fail but the new
493: # file should still install successfully.
494: {
495: test ! -f "$dst" ||
496: $doit $rmcmd -f "$dst" 2>/dev/null ||
497: { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
498: { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
499: } ||
500: { echo "$0: cannot unlink or rename $dst" >&2
501: (exit 1); exit 1
502: }
503: } &&
504:
505: # Now rename the file to the real destination.
506: $doit $mvcmd "$dsttmp" "$dst"
507: }
508: fi || exit 1
509:
510: trap '' 0
511: fi
512: done
513:
514: # Local variables:
515: # eval: (add-hook 'write-file-hooks 'time-stamp)
516: # time-stamp-start: "scriptversion="
517: # time-stamp-format: "%:y-%02m-%02d.%02H"
518: # time-stamp-end: "$"
519: # End:
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