Annotation of suX/install-sh, revision 1.1.1.1
1.1 misho 1: #!/bin/sh
2: #
3: # install - install a program, script, or datafile
4: # This comes from X11R5 (mit/util/scripts/install.sh).
5: #
6: # Copyright 1991 by the Massachusetts Institute of Technology
7: #
8: # Permission to use, copy, modify, distribute, and sell this software and its
9: # documentation for any purpose is hereby granted without fee, provided that
10: # the above copyright notice appear in all copies and that both that
11: # copyright notice and this permission notice appear in supporting
12: # documentation, and that the name of M.I.T. not be used in advertising or
13: # publicity pertaining to distribution of the software without specific,
14: # written prior permission. M.I.T. makes no representations about the
15: # suitability of this software for any purpose. It is provided "as is"
16: # without express or implied warranty.
17: #
18: # Calling this script install-sh is preferred over install.sh, to prevent
19: # `make' implicit rules from creating a file called install from it
20: # when there is no Makefile.
21: #
22: # This script is compatible with the BSD install script, but was written
23: # from scratch. It can only install one file at a time, a restriction
24: # shared with many OS's install programs.
25:
26:
27: # set DOITPROG to echo to test this script
28:
29: # Don't use :- since 4.3BSD and earlier shells don't like it.
30: doit="${DOITPROG-}"
31:
32:
33: # put in absolute paths if you don't have them in your path; or use env. vars.
34:
35: mvprog="${MVPROG-mv}"
36: cpprog="${CPPROG-cp}"
37: chmodprog="${CHMODPROG-chmod}"
38: chownprog="${CHOWNPROG-chown}"
39: chgrpprog="${CHGRPPROG-chgrp}"
40: stripprog="${STRIPPROG-strip}"
41: rmprog="${RMPROG-rm}"
42: mkdirprog="${MKDIRPROG-mkdir}"
43:
44: transformbasename=""
45: transform_arg=""
46: instcmd="$mvprog"
47: chmodcmd="$chmodprog 0755"
48: chowncmd=""
49: chgrpcmd=""
50: stripcmd=""
51: rmcmd="$rmprog -f"
52: mvcmd="$mvprog"
53: src=""
54: dst=""
55: dir_arg=""
56:
57: while [ x"$1" != x ]; do
58: case $1 in
59: -c) instcmd="$cpprog"
60: shift
61: continue;;
62:
63: -d) dir_arg=true
64: shift
65: continue;;
66:
67: -m) chmodcmd="$chmodprog $2"
68: shift
69: shift
70: continue;;
71:
72: -o) chowncmd="$chownprog $2"
73: shift
74: shift
75: continue;;
76:
77: -g) chgrpcmd="$chgrpprog $2"
78: shift
79: shift
80: continue;;
81:
82: -s) stripcmd="$stripprog"
83: shift
84: continue;;
85:
86: -t=*) transformarg=`echo $1 | sed 's/-t=//'`
87: shift
88: continue;;
89:
90: -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
91: shift
92: continue;;
93:
94: *) if [ x"$src" = x ]
95: then
96: src=$1
97: else
98: # this colon is to work around a 386BSD /bin/sh bug
99: :
100: dst=$1
101: fi
102: shift
103: continue;;
104: esac
105: done
106:
107: if [ x"$src" = x ]
108: then
109: echo "install: no input file specified"
110: exit 1
111: else
112: true
113: fi
114:
115: if [ x"$dir_arg" != x ]; then
116: dst=$src
117: src=""
118:
119: if [ -d $dst ]; then
120: instcmd=:
121: chmodcmd=""
122: else
123: instcmd=mkdir
124: fi
125: else
126:
127: # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
128: # might cause directories to be created, which would be especially bad
129: # if $src (and thus $dsttmp) contains '*'.
130:
131: if [ -f $src -o -d $src ]
132: then
133: true
134: else
135: echo "install: $src does not exist"
136: exit 1
137: fi
138:
139: if [ x"$dst" = x ]
140: then
141: echo "install: no destination specified"
142: exit 1
143: else
144: true
145: fi
146:
147: # If destination is a directory, append the input filename; if your system
148: # does not like double slashes in filenames, you may need to add some logic
149:
150: if [ -d $dst ]
151: then
152: dst="$dst"/`basename $src`
153: else
154: true
155: fi
156: fi
157:
158: ## this sed command emulates the dirname command
159: dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
160:
161: # Make sure that the destination directory exists.
162: # this part is taken from Noah Friedman's mkinstalldirs script
163:
164: # Skip lots of stat calls in the usual case.
165: if [ ! -d "$dstdir" ]; then
166: defaultIFS='
167: '
168: IFS="${IFS-${defaultIFS}}"
169:
170: oIFS="${IFS}"
171: # Some sh's can't handle IFS=/ for some reason.
172: IFS='%'
173: set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
174: IFS="${oIFS}"
175:
176: pathcomp=''
177:
178: while [ $# -ne 0 ] ; do
179: pathcomp="${pathcomp}${1}"
180: shift
181:
182: if [ ! -d "${pathcomp}" ] ;
183: then
184: $mkdirprog "${pathcomp}"
185: else
186: true
187: fi
188:
189: pathcomp="${pathcomp}/"
190: done
191: fi
192:
193: if [ x"$dir_arg" != x ]
194: then
195: $doit $instcmd $dst &&
196:
197: if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
198: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
199: if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
200: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
201: else
202:
203: # If we're going to rename the final executable, determine the name now.
204:
205: if [ x"$transformarg" = x ]
206: then
207: dstfile=`basename $dst`
208: else
209: dstfile=`basename $dst $transformbasename |
210: sed $transformarg`$transformbasename
211: fi
212:
213: # don't allow the sed command to completely eliminate the filename
214:
215: if [ x"$dstfile" = x ]
216: then
217: dstfile=`basename $dst`
218: else
219: true
220: fi
221:
222: # Make a temp file name in the proper directory.
223:
224: dsttmp=$dstdir/#inst.$$#
225:
226: # Move or copy the file name to the temp name
227:
228: $doit $instcmd $src $dsttmp &&
229:
230: trap "rm -f ${dsttmp}" 0 &&
231:
232: # and set any options; do chmod last to preserve setuid bits
233:
234: # If any of these fail, we abort the whole thing. If we want to
235: # ignore errors from any of these, just make sure not to ignore
236: # errors from the above "$doit $instcmd $src $dsttmp" command.
237:
238: if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
239: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
240: if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
241: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
242:
243: # Now rename the file to the real destination.
244:
245: $doit $rmcmd -f $dstdir/$dstfile &&
246: $doit $mvcmd $dsttmp $dstdir/$dstfile
247:
248: fi &&
249:
250:
251: exit 0
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