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Revision 92 - (hide annotations) (download)
Wed May 11 23:59:50 2005 UTC (8 years, 11 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 21129 byte(s)
Fix paths limited to 255 chars.  Fix get_sandbox_dir() returning a string
with '(null)' in it if we did not call sandbox with absolute path.

1 ferringb 2 # ChangeLog for Path Sandbox
2 vapier 53 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 ferringb 2 # $Header$
4    
5 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
6     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
7     with '(null)' in it if we did not call sandbox with absolute path.
8    
9 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
10 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
11     for the child.
12    
13     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
14 azarah 90 Remove global preload_adaptable as it is no longer used.
15    
16     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
17 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
18     to try and avoid issues like bug #91541 that causes sandbox to crash if
19     we set LD_PRELOAD sandbox side already.
20    
21 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
22 azarah 88 Move print_sandbox_log() up to make things neater.
23    
24     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
25 azarah 87 Remove load_preload_libs(), as its not used anymore.
26    
27 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
28 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
29    
30     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
31 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
32    
33     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
34 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
35    
36 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
37     Fix typo in code that checks if we got valid group information, causing a
38     segmentation fault, bug #91637.
39    
40 azarah 79 * sandbox-1.2.6 (2005/05/10)
41    
42 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
43     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
44     for some odd reason, bug #91541.
45    
46 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
47     Fix typo (sizeof -> strlen).
48    
49 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
50     rewrote the sbcontext caching code so it accounts for env changes since lib
51     initialization.
52    
53 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
54     We create libctest.c via configure, so no need to keep it around. Do some
55     cleanup related to libctest.c and libctest during configure.
56    
57 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58     Add rename support of symlinks pointing to protected files/directories.
59    
60 azarah 72 * sandbox-1.2.5 (2005/05/04)
61    
62 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
63     sandbox.bashrc:
64     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
65     already set, init of the env vars fails for some reason, so do this later on,
66     and do not warn (bug #91431).
67    
68 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
69     sandbox.bashrc:
70     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
71    
72 azarah 68 * sandbox-1.2.4 (2005/05/03)
73    
74 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
75     Do not init the env entries with each call, as it creates too many calls to
76 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
77 azarah 66
78 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
79     Add /dev/pty to default write list. Noticed by Morfic.
80    
81 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
82     sandbox.h:
83     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
84     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
85    
86 azarah 59 * sandbox-1.2.3 (2005/04/29)
87    
88 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
89     Do not check for (*&#$(* CXX or F77.
90    
91 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
92     Do not append '/' to pathname in filter_path() if it already ends with it.
93    
94 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
95     With az's help, clean up autotools to work with cross-compiling.
96    
97 azarah 59 * sandbox-1.2.2 (2005/04/28)
98 azarah 48
99 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
100     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
101     have issues; bug #90592.
102    
103 azarah 59 * sandbox-1.2.1 (2005/04/23)
104 azarah 44
105 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
106     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
107     Make sure all functions used in libsandbox.c is declared static. Define
108     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
109     linking with its object. Hopefully this will fix bug #90153.
110    
111 azarah 59 * sandbox-1.2 (2005/04/23)
112 azarah 46
113 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
114     Allow lchown a symlink in write-allowed path pointing to write-denied
115     target.
116    
117 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
118     Also show resolved symlink names in the log.
119    
120 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
121     Seems -nostdlib was the problem with the constructor/destructor - remove it
122     from Makefile.am, and change the constructor/destructor names again.
123    
124 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
125     Also rename the _init() and _fini() declarations.
126    
127 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
128     Fixup the constructor/destructor function names again (they should be _init()
129     and _fini() it seems, and not being called caused sandbox_lib_path to be
130     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
131     Add both the path in given SANDBOX_x variable, as well as its symlink
132     resolved path in init_env_entries(). Modify filter_path() to be able to
133     resolve paths without resolving symlinks, as well as to be able to resolve
134     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
135     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
136     for bug #31019 cause access violations if we try to remove a symlink that is
137     not in protected path, but points to a protected path. Fix a memory leak in
138     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
139     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
140     (pid_string was uninitialized). General syntax cleanups.
141    
142 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
143     infamous "pids file is not a regular file" w/out newline bug.
144    
145 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
146     Correct libc_version path detection, since it was screwing up if libdir !=
147     "/lib/".
148    
149     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
150 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
151    
152 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
153 azarah 31 Fix symbols.in not added to dist.
154    
155 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
156 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
157     White space fixes.
158    
159 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
160 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
161 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
162     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
163     for glibc and other libc's that use this. Update libsandbox.c to use these
164     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
165     process unset it.
166    
167 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
168 ferringb 28 killed off _init and _fini in favor of
169     void __attribute__ ((constructor)) init_func and
170     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
171    
172 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
173     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
174     having the hick-ups.
175    
176 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
177     Makefile.am: Fixed compilation.
178    
179 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
180     Gutted the bugger so it stops checking for a c++ and fortran compiler.
181     Do *not* regenerate aclocal.m4 for making a release until a better
182     solution is created.
183    
184 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
185     Removal of more hardcoded paths.
186    
187 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
188     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
189    
190     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
191 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
192     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
193     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
194     To get to a point of testing, automake && autoconf; created requisite files w/
195     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
196     /lib and /usr/lib/portage/bin.
197    
198 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
199     closing out bug #70225, potential overflow of the sandbox_pids_file var.
200    
201     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
202     (think it was at least) allows intermixing of code and data segments. bug #70351
203     should be fixed by this.
204    
205     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
206     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
207    
208     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
209     Seth Robertson that tracked down all adjuct flags for read operations that
210     do not invoke a write operation.
211    
212     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
213     Another fix from jstubbs regarding a free() on a stack variable for the
214     environment -- tracking now prevents extraneous free()'s segfault.
215    
216     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
217     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
218     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
219     Also remove the errno = ESUCCESS settings as documentation points out that
220     a library isn't allowed to do that.
221    
222     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
223     file_security_check() function to check random potential exploits on files
224     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
225     the 'system-crippling' exploits (bug 21923) and catches a few other
226     potential problems.
227    
228     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
229     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
230    
231     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
232     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
233     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
234    
235     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
236     Fix permissions and group of pids file and logs. Permissions should be 0664
237     and group should be 'portage'. Bug #34260.
238    
239     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
240     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
241     to the real execve (in our execve wrapper). Seems that on some arches (sparc
242     among others) do not allow us to tamper with the readonly copy passed to
243     execve, so pass our own copy of the environment. Bug #42290.
244    
245     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
246     Changed tail to head and added a notice about duration of glibc check.
247    
248     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
249     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
250     as there isn't a guarentee that it is dynamic.
251    
252     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
253     If 'file' passed to before_syscall(const char *func, const char *file) is
254     invalid, we should set errno to ENOENT, and not EINVAL. This should
255     close bug #32238.
256    
257     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
258     Fix a bug that occurs mainly on 64bit arch, where the file passed to
259     the functions we wrap, is invalid, and then cause canonicalize to pass
260     garbage to before_syscall(), thanks to great detective work from
261     Andrea Luzzardi <al@sig11.org> (bug #29846).
262    
263     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
264     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
265    
266     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
267     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
268     only checked the destination patch, and not the source, so we could move
269     a protected file to a unprotected directory, and then delete/modify it.
270     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
271    
272     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
273     Added python2.3 to the predict section/variable.
274    
275     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
276     sandbox.h, sandbox_futils.c :
277     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
278     it is not set, it will revert to its old value.
279    
280     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
281     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
282     rather than failing with a violation, bug #29748.
283    
284     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
285     Fix canonicalize() to ignore calls with path = "".
286    
287     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
288     sandbox_futils.c, canonicalize.c :
289     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
290     call handled strings larger than PATH_MAX (bug #21766). It however does not
291     work the same on 2.4 kernels.
292    
293     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
294     do not need the system call. We use the default getcwd() function via a
295     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
296     means the current directory was removed, OR that the the system call for
297     getcwd failed (curious is that it do not fail and return NULL or set
298     errno, but rather just truncate the retured directory - usually from the
299     start), and if so, we use the generic getcwd() function (__egetcwd). Note
300     that we do not use the generic version all the time, as it calls lstat()
301     a great number of times, and performance degrade much.
302    
303     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
304     libsandbox.c :
305     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
306    
307     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
308     create-localdecls :
309     When checking path names of files accessed, we need to canonicalize it, else
310     it may be a symlink in a 'write allowed' directory pointing to a file in a
311     directory we should not have write access to.
312    
313     With something like coreutils-5.0, we have two problems:
314     1) One of the tests checks if getcwd() can return a path longer than
315     PATH_MAX. This test then tries to create a dir which even while
316     created local (mkdir("conftest2")), it ends up being resolved with
317     a name that is much larger than PATH_MAX. The problem now is that
318     canonicalize() have undefined behaviour when the path was too long
319     (returned wrongly truncated paths, etc), and pass the wrong path to
320     before_syscall() (causing the bogus sandbox violations).
321     2) The ecanonicalize() function we used, along with the canonicalize()
322     function did not support longer than PATH_MAX. This is partly a
323     cause for 1), but the error checking (rather lack of it) of calls
324     to erealpath() in canonicalize() was the prime reason for 1).
325    
326     As we do not use this canonicalized name to call the function, we resolve this
327     by fixing canonicalize() to do better error checking, and ecanonicalize() as
328     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
329     While they will resolve paths properly now, and can check if a write/read is
330     allowed, the functions called from the sandboxed environment will still work
331     as expected.
332    
333     This should resolve bug #21766.
334    
335     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
336     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
337     it (bug #16298).
338    
339     Problem is that for some reason locale fopen's locale.alias with mode "rm".
340    
341     -------------------------------------------------------
342     nosferatu root # grep fopen locale.log
343     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
344     nosferatu root #
345     --------------------------------------------------------
346    
347     I checked the source of locale, but it have fopen with mode 'r', so
348     not sure where the "rm" mode comes from. Anyhow, changed the check in
349     before_syscall_open_char() to also see mode "rm" as readonly.
350    
351     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
352    
353     Add glibc-2.3 support.
354    
355     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
356    
357     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
358     operations releated to preload, as well as only try to modify ld.so.preload
359     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
360     not using ld.so.preload. Fix to not write this instance of sandbox's pid
361     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
362    
363     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
364    
365     Changed the LD to CC for hppa.
366    
367     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
368    
369     Killed the previous changes I made.
370    
371     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
372    
373     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
374    
375     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
376    
377     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
378    
379     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
380    
381     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
382     for this fix.
383    
384     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
385    
386     sandbox_futils defined a dirname() function that was masking the same
387     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
388     '/usr/lib/portage/bi/'). Fixed function to return expected results and
389     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
390     11231.
391    
392     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
393    
394     Fix a segfault in libsandbox.c if canonicalize() was called with
395     first parameter = NULL.
396    
397     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
398    
399     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
400     cleanup() for this.
401    
402     Change cleanup() in sandbox.c not to exit with fail status if
403     the pidsfile is missing. We really should still display sandbox
404     violations if they occured.
405    
406     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
407    
408     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
409     the last sandbox running.
410    
411     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
412    
413     Major cleanups to mainly libsandbox.c again.
414    
415     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
416    
417     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
418     parties involved should please contact me so that we can fix it.
419    
420     Add opendir wrapper to libsandbox.c.
421    
422     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
423    
424     Do some more cleanups to ecanonicalize(), as it dropped filenames in
425     rare cases (after my symlink cleanups), and caused glibc to bork.
426     These fixes went into canonicalize.c.
427    
428     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
429    
430     Fix spawn_shell() and main() in sandbox.c to properly return fail
431     status.
432    
433     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
434    
435     The new canonicalize() function in libsandbox.c also resolved symlinks,
436     which caused on cleaning sandbox errors if the symlink pointed to a
437     file in the live root. Ripped out canonicalize() and realpath() from
438     glibc; removed the symlink stuff, and changed them to ecanonicalize()
439     and erealpath().
440    
441     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
442    
443     Ripped out all the wrappers, and implemented those of InstallWatch.
444     Losts of cleanups and bugfixes. Implement a execve that forces
445     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
446     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
447     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
448     parts; it now have an install target.
449    
450     Reformat the whole thing to look somewhat like the reworked sandbox.c
451     and new sandbox.h and sandbox_futils.c from:
452    
453     Brad House <brad@mainstreetsoftworks.com>.
454    
455     Additional Copyrights now due to the InstallWatch code:
456    
457     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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