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mirror of https://github.com/samba-team/samba.git synced 2025-01-05 09:18:06 +03:00
samba-mirror/lib/replace
Andrew Walker eddd14cedb lib/replace - add extra check to bsd_attr_list
The FreeBSD extattr API may return success and truncated
namelist. We need to check for this in bsd_attr_list to
ensure that we don't accidentally read off the end of the
buffer. In the case of a truncated value, the pascal
strings for attr names will reflect the lengths as if
the value were not truncated. For example:
`58DosStrea`

In case of short read we now set error to ERANGE and
fail.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15271

Signed-off-by: Andrew Walker <awalker@ixsystems.com>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Jan  2 14:27:23 UTC 2023 on sn-devel-184

(cherry picked from commit 01cdc5e00b)

Autobuild-User(v4-16-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-16-test): Mon Jan 23 10:59:28 UTC 2023 on sn-devel-184
2023-01-23 10:59:28 +00:00
..
system lib:replace: Only include <sys/mount.h> on non-Linux systems 2022-08-23 08:53:41 +00:00
tests testsuite: Fix build with gcc >= 11.1.1 2021-08-16 17:20:37 +00:00
.checker_innocent
closefrom.c libreplace: Compare a pointer against NULL, not 0 2020-11-04 18:55:39 +00:00
configure build: Move python detection back into waf (instead of in configure and Makefile) 2018-12-14 14:40:19 +01:00
dlfcn.c
getaddrinfo.c libreplace: free() deals fine with NULL pointers 2014-01-24 13:55:47 -08:00
getaddrinfo.h
getifaddrs.c replace: Use #ifdef instead of #if for config.h definitions 2018-11-28 23:19:21 +01:00
hdr_replace.h
inet_aton.c
inet_ntoa.c
inet_ntop.c
inet_pton.c
Makefile build: Move python detection back into waf (instead of in configure and Makefile) 2018-12-14 14:40:19 +01:00
poll.c replace: fix 520c9b0b0a 2012-09-18 16:06:18 +02:00
README replace: Add memset_s to replacement functions 2018-12-20 12:16:39 +01:00
replace-test.h lib/replace: Try to fix build on HP-UX for os2_delete test 2012-09-23 14:31:01 +10:00
replace-testsuite.h lib/replace: Try to fix build on HP-UX for os2_delete test 2012-09-23 14:31:01 +10:00
replace.c replace: copy_file_range() 2021-06-30 16:51:29 +00:00
replace.h lib:replace: Add macro BURN_STR() to zero memory of a string 2022-09-18 16:46:09 +00:00
snprintf.c lib/replace: fix memory leak in snprintf replacements 2022-11-23 12:43:15 +00:00
socket.c Bug 8997: change libreplace GPL source to LGPL 2013-06-03 18:06:18 +02:00
socketpair.c
strptime.c lib:replace: Add FALL_THROUGH statements in strptime.c 2018-03-01 04:37:41 +01:00
timegm.c lib/replace/timegm: use utf-8 2021-11-17 05:27:39 +00:00
win32_replace.h
wscript lib:replace: Only include <sys/mount.h> on non-Linux systems 2022-08-23 08:53:41 +00:00
xattr.c lib/replace - add extra check to bsd_attr_list 2023-01-23 10:59:28 +00:00

This subsystem ensures that we can always use a certain core set of 
functions and types, that are either provided by the OS or by replacement 
functions / definitions in this subsystem. The aim is to try to stick 
to POSIX functions in here as much as possible. Convenience functions 
that are available on no platform at all belong in other subsystems
(such as LIBUTIL).

The following functions are guaranteed:

ftruncate
strlcpy
strlcat
mktime
rename
initgroups
memmove
strdup
setlinebuf
vsyslog
timegm
setenv
unsetenv
strndup
strnlen
waitpid
seteuid
setegid
asprintf
snprintf
vasprintf
vsnprintf
opendir
readdir
telldir
seekdir
clock_gettime
closedir
dlopen
dlclose
dlsym
dlerror
chroot
bzero
strerror
errno
mkdtemp
mkstemp (a secure one!)
pread
pwrite
chown
lchown
readline (the library)
inet_ntoa
inet_ntop
inet_pton
inet_aton
strtoll
strtoull
socketpair
strptime
getaddrinfo
freeaddrinfo
getnameinfo
gai_strerror
getifaddrs
freeifaddrs
utime
utimes
dup2
link
readlink
symlink
realpath
poll
setproctitle
memset_s

Types:
bool
socklen_t
uint{8,16,32,64}_t
int{8,16,32,64}_t
intptr_t
sig_atomic_t
blksize_t
blkcnt_t

Constants:
PATH_NAME_MAX
UINT{16,32,64}_MAX
INT32_MAX
RTLD_LAZY
HOST_NAME_MAX
UINT16_MAX
UINT32_MAX
UINT64_MAX
CHAR_BIT

Macros:
va_copy
__FUNCTION__
__FILE__
__LINE__
__LINESTR__
__location__
__STRING
__STRINGSTRING
MIN
MAX
QSORT_CAST
ZERO_STRUCT
ZERO_STRUCTP
ZERO_STRUCTPN
ZERO_ARRAY
ARRAY_SIZE
PTR_DIFF

Headers:
stdint.h
stdbool.h

Optional C keywords:
volatile

Prerequisites:
memset (for bzero)
syslog (for vsyslog)
mktemp (for mkstemp and mkdtemp)