Annotation of src/etc/security, Revision 1.23
1.1 deraadt 1: #!/bin/sh -
2: #
1.23 ! deraadt 3: # $OpenBSD: security,v 1.22 1997/09/29 22:15:58 deraadt Exp $
1.13 millert 4: # from: @(#)security 8.1 (Berkeley) 6/9/93
1.1 deraadt 5: #
1.13 millert 6:
1.1 deraadt 7: PATH=/sbin:/usr/sbin:/bin:/usr/bin
8:
9: umask 077
10:
1.7 deraadt 11: DIR=/tmp/_secure$$
12: ERR=$DIR/_secure1
13: TMP1=$DIR/_secure2
14: TMP2=$DIR/_secure3
15: TMP3=$DIR/_secure4
16: LIST=$DIR/_secure5
17: OUTPUT=$DIR/_secure6
1.1 deraadt 18:
1.7 deraadt 19: if ! mkdir $DIR ; then
20: printf "tmp directory %s already exists, looks like:\n" $DIR
21: ls -alF $DIR
22: exit 1
23: fi
1.8 deraadt 24:
1.17 deraadt 25: trap 'rm -rf $DIR' 0 1 15
1.1 deraadt 26:
27: # Check the master password file syntax.
28: MP=/etc/master.passwd
29: awk -F: '{
30: if ($0 ~ /^[ ]*$/) {
31: printf("Line %d is a blank line.\n", NR);
32: next;
33: }
34: if (NF != 10)
35: printf("Line %d has the wrong number of fields.\n", NR);
1.15 millert 36: if ($1 ~ /^[+-]/)
1.2 deraadt 37: next;
38: if ($1 == "")
1.13 millert 39: printf("Line %d has an empty login field.\n", NR);
1.2 deraadt 40: else if ($1 !~ /^[A-Za-z0-9][A-Za-z0-9_-]*$/)
1.1 deraadt 41: printf("Login %s has non-alphanumeric characters.\n", $1);
42: if (length($1) > 8)
43: printf("Login %s has more than 8 characters.\n", $1);
44: if ($2 == "")
45: printf("Login %s has no password.\n", $1);
1.23 ! deraadt 46: if ($2 != "" && length($2) != 13 && ($10 ~ /.*sh$/ || $10 == "") &&
! 47: ($2 !~ /^\$[0-9a-f]+\$/) && ($2 != "skey")) {
! 48: if (system("grep -q \"^"$1" \" /etc/skeykeys") == 0)
! 49: printf("Login %s is off but still has a valid shell and an entry in /etc/skeykeys.\n", $1);
! 50: if (system("test -d "$9" -a ! -r "$9"") == 0)
! 51: printf("Login %s if off but still has valid shell and home directory is unreadable\n\t by root; cannot check for existance of alternate access files.\n", $1);
! 52: else if (system("for file in .ssh .rhosts .shosts .klogin; do if test -e "$9"/$file; then if ((ls -ld "$9"/$file | cut -b 2-10 | grep -q r) && (test ! -O "$9"/$file)) ; then exit 1; fi; fi; done"))
! 53: printf("Login %s is off but still has a valid shell and alternate access files in\n\t home directory are still readable.\n",$1);
! 54: }
1.9 deraadt 55: if ($3 == 0 && $1 != "root")
1.1 deraadt 56: printf("Login %s has a user id of 0.\n", $1);
57: if ($3 < 0)
58: printf("Login %s has a negative user id.\n", $1);
59: if ($4 < 0)
60: printf("Login %s has a negative group id.\n", $1);
61: }' < $MP > $OUTPUT
62: if [ -s $OUTPUT ] ; then
63: printf "\nChecking the $MP file:\n"
64: cat $OUTPUT
65: fi
66:
67: awk -F: '{ print $1 }' $MP | sort | uniq -d > $OUTPUT
68: if [ -s $OUTPUT ] ; then
69: printf "\n$MP has duplicate user names.\n"
70: column $OUTPUT
71: fi
72:
1.9 deraadt 73: awk -F: '{ print $1 " " $3 }' $MP | sort -n +1 | tee $TMP1 |
1.1 deraadt 74: uniq -d -f 1 | awk '{ print $2 }' > $TMP2
75: if [ -s $TMP2 ] ; then
76: printf "\n$MP has duplicate user id's.\n"
77: while read uid; do
78: grep -w $uid $TMP1
79: done < $TMP2 | column
80: fi
81:
82: # Backup the master password file; a special case, the normal backup
83: # mechanisms also print out file differences and we don't want to do
84: # that because this file has encrypted passwords in it.
1.2 deraadt 85: if [ ! -d /var/backups ] ; then
86: mkdir /var/backups
87: chmod 755 /var/backups
88: fi
1.1 deraadt 89: CUR=/var/backups/`basename $MP`.current
90: BACK=/var/backups/`basename $MP`.backup
91: if [ -s $CUR ] ; then
92: if cmp -s $CUR $MP; then
93: :
94: else
95: cp -p $CUR $BACK
96: cp -p $MP $CUR
97: chown root.wheel $CUR
98: fi
99: else
100: cp -p $MP $CUR
101: chown root.wheel $CUR
102: fi
103:
104: # Check the group file syntax.
105: GRP=/etc/group
106: awk -F: '{
107: if ($0 ~ /^[ ]*$/) {
108: printf("Line %d is a blank line.\n", NR);
109: next;
110: }
1.2 deraadt 111: if ($1 ~ /^[+-].*$/)
112: next;
1.1 deraadt 113: if (NF != 4)
114: printf("Line %d has the wrong number of fields.\n", NR);
1.13 millert 115: if ($1 !~ /^[A-za-z0-9][A-za-z0-9_-]*$/)
1.1 deraadt 116: printf("Group %s has non-alphanumeric characters.\n", $1);
117: if (length($1) > 8)
118: printf("Group %s has more than 8 characters.\n", $1);
119: if ($3 !~ /[0-9]*/)
120: printf("Login %s has a negative group id.\n", $1);
121: }' < $GRP > $OUTPUT
122: if [ -s $OUTPUT ] ; then
123: printf "\nChecking the $GRP file:\n"
124: cat $OUTPUT
125: fi
126:
127: awk -F: '{ print $1 }' $GRP | sort | uniq -d > $OUTPUT
128: if [ -s $OUTPUT ] ; then
129: printf "\n$GRP has duplicate group names.\n"
130: column $OUTPUT
131: fi
132:
133: # Check for root paths, umask values in startup files.
134: # The check for the root paths is problematical -- it's likely to fail
135: # in other environments. Once the shells have been modified to warn
136: # of '.' in the path, the path tests should go away.
137: > $OUTPUT
138: rhome=/root
139: umaskset=no
140: list="/etc/csh.cshrc /etc/csh.login ${rhome}/.cshrc ${rhome}/.login"
141: for i in $list ; do
1.15 millert 142: if [ -s $i ] ; then
1.1 deraadt 143: if egrep umask $i > /dev/null ; then
144: umaskset=yes
145: fi
146: egrep umask $i |
147: awk '$2 % 100 < 20 \
148: { print "Root umask is group writeable" }
149: $2 % 10 < 2 \
150: { print "Root umask is other writeable" }' >> $OUTPUT
1.21 deraadt 151: SAVE_PATH=$PATH
152: unset PATH
1.1 deraadt 153: /bin/csh -f -s << end-of-csh > /dev/null 2>&1
154: source $i
155: /bin/ls -ldgT \$path > $TMP1
156: end-of-csh
1.21 deraadt 157: PATH=$SAVE_PATH
1.1 deraadt 158: awk '{
159: if ($10 ~ /^\.$/) {
160: print "The root path includes .";
161: next;
162: }
163: }
164: $1 ~ /^d....w/ \
165: { print "Root path directory " $10 " is group writeable." } \
166: $1 ~ /^d.......w/ \
167: { print "Root path directory " $10 " is other writeable." }' \
168: < $TMP1 >> $OUTPUT
169: fi
170: done
171: if [ $umaskset = "no" -o -s $OUTPUT ] ; then
172: printf "\nChecking root csh paths, umask values:\n$list\n"
1.13 millert 173: if [ -s $OUTPUT ] ; then
1.1 deraadt 174: cat $OUTPUT
175: fi
176: if [ $umaskset = "no" ] ; then
177: printf "\nRoot csh startup files do not set the umask.\n"
178: fi
179: fi
180:
181: > $OUTPUT
182: rhome=/root
183: umaskset=no
1.20 millert 184: list="/etc/profile ${rhome}/.profile"
1.1 deraadt 185: for i in $list; do
1.15 millert 186: if [ -s $i ] ; then
1.1 deraadt 187: if egrep umask $i > /dev/null ; then
188: umaskset=yes
189: fi
190: egrep umask $i |
191: awk '$2 % 100 < 20 \
192: { print "Root umask is group writeable" } \
193: $2 % 10 < 2 \
194: { print "Root umask is other writeable" }' >> $OUTPUT
1.21 deraadt 195: SAVE_PATH=$PATH
196: unset PATH
1.1 deraadt 197: /bin/sh << end-of-sh > /dev/null 2>&1
198: . $i
199: list=\`echo \$PATH | /usr/bin/sed -e 's/:/ /g'\`
200: /bin/ls -ldgT \$list > $TMP1
201: end-of-sh
1.21 deraadt 202: PATH=$SAVE_PATH
1.1 deraadt 203: awk '{
204: if ($10 ~ /^\.$/) {
205: print "The root path includes .";
206: next;
207: }
208: }
209: $1 ~ /^d....w/ \
210: { print "Root path directory " $10 " is group writeable." } \
211: $1 ~ /^d.......w/ \
212: { print "Root path directory " $10 " is other writeable." }' \
213: < $TMP1 >> $OUTPUT
214:
215: fi
216: done
217: if [ $umaskset = "no" -o -s $OUTPUT ] ; then
218: printf "\nChecking root sh paths, umask values:\n$list\n"
1.13 millert 219: if [ -s $OUTPUT ] ; then
1.1 deraadt 220: cat $OUTPUT
221: fi
222: if [ $umaskset = "no" ] ; then
223: printf "\nRoot sh startup files do not set the umask.\n"
224: fi
225: fi
226:
227: # Root and uucp should both be in /etc/ftpusers.
228: if egrep root /etc/ftpusers > /dev/null ; then
229: :
230: else
231: printf "\nRoot not listed in /etc/ftpusers file.\n"
232: fi
233: if egrep uucp /etc/ftpusers > /dev/null ; then
234: :
235: else
236: printf "\nUucp not listed in /etc/ftpusers file.\n"
237: fi
238:
239: # Uudecode should not be in the /etc/aliases file.
240: if egrep 'uudecode|decode' /etc/aliases; then
241: printf "\nThere is an entry for uudecode in the /etc/aliases file.\n"
242: fi
243:
244: # Files that should not have + signs.
1.2 deraadt 245: list="/etc/hosts.equiv /etc/shosts.equiv /etc/hosts.lpd"
1.1 deraadt 246: for f in $list ; do
1.6 millert 247: if [ -s $f ] ; then
1.2 deraadt 248: awk '{
1.13 millert 249: if ($0 ~ /^\+@.*$/)
1.2 deraadt 250: next;
1.13 millert 251: if ($0 ~ /^\+.*$/)
1.2 deraadt 252: printf("\nPlus sign in %s file.\n", FILENAME);
253: }' $f
1.1 deraadt 254: fi
255: done
256:
1.13 millert 257: # Check for special users with .rhosts/.shosts files. Only root
258: # should have .rhosts/.shosts files. Also, .rhosts/.shosts
259: # files should not have plus signs.
1.14 millert 260: awk -F: '$1 != "root" && $1 !~ /^[+-]/ && \
1.1 deraadt 261: ($3 < 100 || $1 == "ftp" || $1 == "uucp") \
262: { print $1 " " $6 }' /etc/passwd |
263: while read uid homedir; do
1.2 deraadt 264: for j in .rhosts .shosts; do
1.14 millert 265: # Root owned .rhosts/.shosts files are ok.
1.15 millert 266: if [ -s ${homedir}/$j -a ! -O ${homedir}/$j ] ; then
1.2 deraadt 267: rhost=`ls -ldgT ${homedir}/$j`
268: printf "$uid: $rhost\n"
269: fi
270: done
1.1 deraadt 271: done > $OUTPUT
272: if [ -s $OUTPUT ] ; then
1.2 deraadt 273: printf "\nChecking for special users with .rhosts/.shosts files.\n"
1.1 deraadt 274: cat $OUTPUT
275: fi
276:
1.14 millert 277: awk -F: '/^[^+-]/ { print $1 " " $6 }' /etc/passwd | \
1.1 deraadt 278: while read uid homedir; do
1.2 deraadt 279: for j in .rhosts .shosts; do
1.13 millert 280: if [ -s ${homedir}/$j ] ; then
1.2 deraadt 281: awk '{
282: if ($0 ~ /^+@.*$/ )
283: next;
1.4 deraadt 284: if ($0 ~ /^\+[ ]*$/ )
1.2 deraadt 285: printf("%s has + sign in it.\n",
1.13 millert 286: FILENAME);
1.2 deraadt 287: }' ${homedir}/$j
288: fi
289: done
1.1 deraadt 290: done > $OUTPUT
291: if [ -s $OUTPUT ] ; then
1.2 deraadt 292: printf "\nChecking .rhosts/.shosts files syntax.\n"
1.1 deraadt 293: cat $OUTPUT
294: fi
295:
296: # Check home directories. Directories should not be owned by someone else
297: # or writeable.
1.14 millert 298: awk -F: '/^[^+-]/ { print $1 " " $6 }' /etc/passwd | \
1.1 deraadt 299: while read uid homedir; do
300: if [ -d ${homedir}/ ] ; then
301: file=`ls -ldgT ${homedir}`
302: printf "$uid $file\n"
303: fi
304: done |
305: awk '$1 != $4 && $4 != "root" \
306: { print "user " $1 " home directory is owned by " $4 }
307: $2 ~ /^-....w/ \
308: { print "user " $1 " home directory is group writeable" }
309: $2 ~ /^-.......w/ \
310: { print "user " $1 " home directory is other writeable" }' > $OUTPUT
311: if [ -s $OUTPUT ] ; then
312: printf "\nChecking home directories.\n"
313: cat $OUTPUT
314: fi
315:
316: # Files that should not be owned by someone else or readable.
1.2 deraadt 317: list=".netrc .rhosts .shosts"
1.14 millert 318: awk -F: '/^[^+-]/ { print $1 " " $6 }' /etc/passwd | \
1.1 deraadt 319: while read uid homedir; do
320: for f in $list ; do
321: file=${homedir}/${f}
322: if [ -f $file ] ; then
323: printf "$uid $f `ls -ldgT $file`\n"
324: fi
325: done
326: done |
327: awk '$1 != $5 && $5 != "root" \
328: { print "user " $1 " " $2 " file is owned by " $5 }
1.13 millert 329: $3 ~ /^-...r/ \
330: { print "user " $1 " " $2 " file is group readable" }
1.1 deraadt 331: $3 ~ /^-......r/ \
332: { print "user " $1 " " $2 " file is other readable" }
333: $3 ~ /^-....w/ \
334: { print "user " $1 " " $2 " file is group writeable" }
335: $3 ~ /^-.......w/ \
336: { print "user " $1 " " $2 " file is other writeable" }' > $OUTPUT
337:
338: # Files that should not be owned by someone else or writeable.
339: list=".bashrc .cshrc .emacs .exrc .forward .klogin .login .logout \
340: .profile .tcshrc"
1.14 millert 341: awk -F: '/^[^+-]/ { print $1 " " $6 }' /etc/passwd | \
1.1 deraadt 342: while read uid homedir; do
343: for f in $list ; do
344: file=${homedir}/${f}
345: if [ -f $file ] ; then
346: printf "$uid $f `ls -ldgT $file`\n"
347: fi
348: done
349: done |
350: awk '$1 != $5 && $5 != "root" \
351: { print "user " $1 " " $2 " file is owned by " $5 }
352: $3 ~ /^-....w/ \
353: { print "user " $1 " " $2 " file is group writeable" }
354: $3 ~ /^-.......w/ \
355: { print "user " $1 " " $2 " file is other writeable" }' >> $OUTPUT
356: if [ -s $OUTPUT ] ; then
357: printf "\nChecking dot files.\n"
358: cat $OUTPUT
359: fi
360:
361: # Mailboxes should be owned by user and unreadable.
362: ls -l /var/mail | sed 1d | \
363: awk '$3 != $9 \
364: { print "user " $9 " mailbox is owned by " $3 }
365: $1 != "-rw-------" \
366: { print "user " $9 " mailbox is " $1 ", group " $4 }' > $OUTPUT
367: if [ -s $OUTPUT ] ; then
368: printf "\nChecking mailbox ownership.\n"
369: cat $OUTPUT
370: fi
371:
1.13 millert 372: # File systems should not be globally exported.
373: if [ -s /etc/exports ] ; then
374: awk '{
1.19 flipk 375: if (($1 ~ /^#/) || ($1 ~ /^$/))
1.1 deraadt 376: next;
1.13 millert 377: readonly = 0;
378: for (i = 2; i <= NF; ++i) {
1.19 flipk 379: if ($i ~ /^-ro$/)
1.13 millert 380: readonly = 1;
381: else if ($i !~ /^-/)
382: next;
383: }
384: if (readonly)
385: print "File system " $1 " globally exported, read-only."
386: else
387: print "File system " $1 " globally exported, read-write."
388: }' < /etc/exports > $OUTPUT
389: if [ -s $OUTPUT ] ; then
390: printf "\nChecking for globally exported file systems.\n"
391: cat $OUTPUT
392: fi
1.1 deraadt 393: fi
394:
1.5 deraadt 395: # Display any changes in setuid/setgid files and devices.
396: pending="\nChecking setuid/setgid files and devices:\n"
1.1 deraadt 397: (find / \( ! -fstype local -o -fstype fdesc -o -fstype kernfs \
1.13 millert 398: -o -fstype procfs \) -a -prune -o \
399: -type f -a \( -perm -u+s -o -perm -g+s \) -print0 -o \
400: ! -type d -a ! -type f -a ! -type l -a ! -type s -print0 | \
401: xargs -0 ls -ldgT | sort +9 > $LIST) 2> $OUTPUT
1.1 deraadt 402:
403: # Display any errors that occurred during system file walk.
404: if [ -s $OUTPUT ] ; then
1.2 deraadt 405: printf "${pending}Setuid/device find errors:\n"
406: pending=
1.1 deraadt 407: cat $OUTPUT
408: printf "\n"
409: fi
410:
1.12 millert 411: # Display any changes in the setuid/setgid file list.
1.13 millert 412: egrep -v '^[bc]' $LIST > $TMP1
1.1 deraadt 413: if [ -s $TMP1 ] ; then
414: # Check to make sure uudecode isn't setuid.
415: if grep -w uudecode $TMP1 > /dev/null ; then
1.2 deraadt 416: printf "${pending}\nUudecode is setuid.\n"
417: pending=
1.1 deraadt 418: fi
419:
420: CUR=/var/backups/setuid.current
421: BACK=/var/backups/setuid.backup
422:
423: if [ -s $CUR ] ; then
424: if cmp -s $CUR $TMP1 ; then
425: :
426: else
427: > $TMP2
1.13 millert 428: join -110 -210 -v2 $CUR $TMP1 > $OUTPUT
1.1 deraadt 429: if [ -s $OUTPUT ] ; then
1.2 deraadt 430: printf "${pending}Setuid additions:\n"
431: pending=
1.1 deraadt 432: tee -a $TMP2 < $OUTPUT
433: printf "\n"
434: fi
435:
1.13 millert 436: join -110 -210 -v1 $CUR $TMP1 > $OUTPUT
1.1 deraadt 437: if [ -s $OUTPUT ] ; then
1.2 deraadt 438: printf "${pending}Setuid deletions:\n"
439: pending=
1.1 deraadt 440: tee -a $TMP2 < $OUTPUT
441: printf "\n"
442: fi
443:
1.13 millert 444: sort +9 $TMP2 $CUR $TMP1 | \
1.1 deraadt 445: sed -e 's/[ ][ ]*/ /g' | uniq -u > $OUTPUT
446: if [ -s $OUTPUT ] ; then
1.2 deraadt 447: printf "${pending}Setuid changes:\n"
448: pending=
1.1 deraadt 449: column -t $OUTPUT
450: printf "\n"
451: fi
452:
453: cp $CUR $BACK
454: cp $TMP1 $CUR
455: fi
456: else
1.2 deraadt 457: printf "${pending}Setuid additions:\n"
458: pending=
1.1 deraadt 459: column -t $TMP1
460: printf "\n"
461: cp $TMP1 $CUR
462: fi
463: fi
464:
465: # Check for block and character disk devices that are readable or writeable
466: # or not owned by root.operator.
467: >$TMP1
1.13 millert 468: DISKLIST="ccd dk fd hd hk hp jb kra ra rb rd rl rx rz sd up vnd wd xd"
1.1 deraadt 469: for i in $DISKLIST; do
1.11 tholo 470: egrep "^b.*/${i}[0-9][0-9]*[a-p]$" $LIST >> $TMP1
471: egrep "^c.*/r${i}[0-9][0-9]*[a-p]$" $LIST >> $TMP1
1.1 deraadt 472: done
473:
474: awk '$3 != "root" || $4 != "operator" || $1 !~ /.rw-r-----/ \
475: { printf("Disk %s is user %s, group %s, permissions %s.\n", \
476: $11, $3, $4, $1); }' < $TMP1 > $OUTPUT
477: if [ -s $OUTPUT ] ; then
478: printf "\nChecking disk ownership and permissions.\n"
479: cat $OUTPUT
480: printf "\n"
481: fi
482:
483: # Display any changes in the device file list.
484: egrep '^[bc]' $LIST | sort +10 > $TMP1
485: if [ -s $TMP1 ] ; then
486: CUR=/var/backups/device.current
487: BACK=/var/backups/device.backup
488:
489: if [ -s $CUR ] ; then
490: if cmp -s $CUR $TMP1 ; then
491: :
492: else
493: > $TMP2
494: join -111 -211 -v2 $CUR $TMP1 > $OUTPUT
495: if [ -s $OUTPUT ] ; then
496: printf "Device additions:\n"
497: tee -a $TMP2 < $OUTPUT
498: printf "\n"
499: fi
500:
501: join -111 -211 -v1 $CUR $TMP1 > $OUTPUT
502: if [ -s $OUTPUT ] ; then
503: printf "Device deletions:\n"
504: tee -a $TMP2 < $OUTPUT
505: printf "\n"
506: fi
507:
508: # Report any block device change. Ignore character
509: # devices, only the name is significant.
510: cat $TMP2 $CUR $TMP1 | \
511: sed -e '/^c/d' | \
512: sort +10 | \
513: sed -e 's/[ ][ ]*/ /g' | \
514: uniq -u > $OUTPUT
515: if [ -s $OUTPUT ] ; then
516: printf "Block device changes:\n"
517: column -t $OUTPUT
518: printf "\n"
519: fi
520:
521: cp $CUR $BACK
522: cp $TMP1 $CUR
523: fi
524: else
525: printf "Device additions:\n"
526: column -t $TMP1
527: printf "\n"
528: cp $TMP1 $CUR
529: fi
530: fi
531:
532: # Check special files.
533: # Check system binaries.
534: #
535: # Create the mtree tree specifications using:
536: #
537: # mtree -cx -pDIR -kcksum,gid,mode,nlink,size,link,time,uid > DIR.secure
1.2 deraadt 538: # chown root.wheel DIR.secure
539: # chmod 600 DIR.secure
1.1 deraadt 540: #
541: # Note, this is not complete protection against Trojan horsed binaries, as
542: # the hacker can modify the tree specification to match the replaced binary.
543: # For details on really protecting yourself against modified binaries, see
544: # the mtree(8) manual page.
1.13 millert 545: if [ -d /etc/mtree ] ; then
1.2 deraadt 546: cd /etc/mtree
1.1 deraadt 547: mtree -e -p / -f /etc/mtree/special > $OUTPUT
548: if [ -s $OUTPUT ] ; then
549: printf "\nChecking special files and directories.\n"
550: cat $OUTPUT
551: fi
552:
553: > $OUTPUT
554: for file in *.secure; do
1.2 deraadt 555: [ $file = '*.secure' ] && continue
1.1 deraadt 556: tree=`sed -n -e '3s/.* //p' -e 3q $file`
557: mtree -f $file -p $tree > $TMP1
1.13 millert 558: if [ -s $TMP1 ] ; then
1.1 deraadt 559: printf "\nChecking $tree:\n" >> $OUTPUT
560: cat $TMP1 >> $OUTPUT
561: fi
562: done
563: if [ -s $OUTPUT ] ; then
564: printf "\nChecking system binaries:\n"
565: cat $OUTPUT
566: fi
1.2 deraadt 567: else
568: echo /etc/mtree is missing
1.1 deraadt 569: fi
570:
571: # List of files that get backed up and checked for any modifications. Each
572: # file is expected to have two backups, /var/backups/file.{current,backup}.
573: # Any changes cause the files to rotate.
574: if [ -s /etc/changelist ] ; then
575: for file in `cat /etc/changelist`; do
576: CUR=/var/backups/`basename $file`.current
577: BACK=/var/backups/`basename $file`.backup
1.13 millert 578: if [ -s $file ] ; then
1.1 deraadt 579: if [ -s $CUR ] ; then
580: diff $CUR $file > $OUTPUT
581: if [ -s $OUTPUT ] ; then
582: printf "\n======\n%s diffs (OLD < > NEW)\n======\n" $file
583: cat $OUTPUT
584: cp -p $CUR $BACK
585: cp -p $file $CUR
586: chown root.wheel $CUR $BACK
587: fi
588: else
589: cp -p $file $CUR
590: chown root.wheel $CUR
591: fi
592: fi
593: done
594: fi
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