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serenity/Libraries/LibC
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Ben Wiederhake aa36e9917c LibC: Prefer strlcpy over strcpy in getgrent(), fix overflow 
An overlong group name in /etc/groups would have caused getgrent() to overflow
the global __grdb_entry. Curiously, overflow *within* __grdb_entry seems to have
no detrimental effects.

However, it was possible for a malicious sysadmin(?!) to craft an /etc/group
that overflows outside of the page allocated for __grdb_entry thus crash the
calling process. This affected at least SystemServer and su.

Now, the group name will be simply truncated. For display purposes, this is
fine. In case there is an exceptionally long group, it will not be properly
recognized. Also, a malicious /etc/groups might cause the caller of getgrent()
to become confused, but that is unavoidable.
2020-08-24 00:45:03 +02:00
..
arpa LibC: Add inet_aton, based on inet_pton 2020-05-11 09:50:42 +02:00
bits Meta: Add a script check the presence of "#pragma once" in header files 2020-05-29 07:59:45 +02:00
net Meta: Add a script check the presence of "#pragma once" in header files 2020-05-29 07:59:45 +02:00
netinet LibC: Add sa_family_t and in_port_t types 2020-08-11 21:13:18 +02:00
sys LibC: Move C++ABI functions to cxxabi.cpp, typecheck cxa_atexit 2020-08-12 20:40:59 +02:00
alloca.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
assert.cpp LibC: Remove endless loop after abort() call 2020-05-26 14:35:10 +02:00
assert.h LibC: Make sure assert() expands to *something* in non-DEBUG builds 2020-08-11 20:29:14 +02:00
byteswap.h Meta: Add missing copyright headers 2020-04-06 11:09:01 +02:00
CMakeLists.txt Toolchain: Allow building using CMake on macOS 2020-07-13 08:46:44 +02:00
crt0.cpp LibC: Avoid ninja-imports of system functions 2020-08-12 20:40:59 +02:00
crti.S Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
crtn.S Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
ctype.cpp Revert "LibC: Implement isblank()" 2020-02-16 10:47:54 +01:00
ctype.h LibC: Don't let ctype isfoo() helpers access array out of bounds 2020-05-17 22:35:25 +02:00
cxxabi.cpp LibC: Move C++ABI functions to cxxabi.cpp, typecheck cxa_atexit 2020-08-12 20:40:59 +02:00
dirent.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
dirent.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
dlfcn.cpp AK: Rename FileSystemPath -> LexicalPath 2020-05-26 14:35:10 +02:00
dlfcn.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
endian.h LibC: Fix big endian definitions 2020-02-19 16:08:28 +01:00
errno.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
errno_numbers.h Kernel+LibC: Remove ESUCCESS 2020-04-10 13:09:35 +02:00
fcntl.cpp LibC: Missing varargs cleanup in fcntl 2020-08-17 09:17:57 +02:00
fcntl.h Kernel+LibC: Switch isatty() to use a fcntl() 2020-05-20 08:31:31 +02:00
fd_set.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
float.h Meta: Add a script check the presence of "#pragma once" in header files 2020-05-29 07:59:45 +02:00
getopt.cpp Meta: Scale back overly informal user-facing strings 2020-06-17 18:35:49 +02:00
getopt.h LibC: Rewrite getopt() 2020-05-30 15:01:18 +02:00
grp.cpp LibC: Prefer strlcpy over strcpy in getgrent(), fix overflow 2020-08-24 00:45:03 +02:00
grp.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
iconv.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
inttypes.h LibC: Add some missing macros to inttypes.h 2020-02-20 06:51:16 +01:00
ioctl.cpp LibC: Missing varargs cleanup in ioctl 2020-08-17 09:17:57 +02:00
libcinit.cpp LibC: Move C++ABI functions to cxxabi.cpp, typecheck cxa_atexit 2020-08-12 20:40:59 +02:00
libgen.cpp Meta: Claim copyright for files created by me 2020-01-24 15:15:16 +01:00
libgen.h Meta: Claim copyright for files created by me 2020-01-24 15:15:16 +01:00
limits.h LibC: Use more flexible digit parsing code, deduplicate 2020-05-11 10:52:24 +02:00
locale.cpp Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
locale.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
malloc.cpp malloc: Keep some stats and dump them at process exit if LIBC_DUMP_MALLOC_STATS is set 2020-08-17 09:43:23 +02:00
mallocdefs.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
memory.h Meta: Add a script check the presence of "#pragma once" in header files 2020-05-29 07:59:45 +02:00
mman.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
mman.h Kernel+LibC: Add minherit() and MAP_INHERIT_ZERO 2020-04-12 20:22:26 +02:00
mntent.cpp Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
mntent.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
netdb.cpp LibC+Userland: Prefer snprintf over sprintf 2020-08-22 20:55:10 +02:00
netdb.h LibC: getprotoent() family of functions 2020-04-18 10:11:55 +02:00
poll.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
poll.h LibC+Kernel: Implement ppoll 2020-06-23 14:12:20 +02:00
pwd.cpp LibC: Add passwords to putpwent 2020-07-28 17:07:22 +02:00
pwd.h LibC: Implement putpwent() 2020-02-02 10:58:45 +01:00
qsort.cpp LibC: Replace Berkley's qsort() with AK::dual_pivot_quick_sort() wrapper 2020-07-03 19:29:36 +02:00
scanf.cpp LibC: Mark compilation-unit-only functions as static 2020-08-12 20:40:59 +02:00
sched.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
sched.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
serenity.cpp Kernel: More PID/TID typing 2020-08-10 11:51:45 +02:00
serenity.h Kernel: More PID/TID typing 2020-08-10 11:51:45 +02:00
setjmp.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
setjmp.S Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
signal.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
signal.h LibC: Declare pthread_sigmask() in signal.h. 2020-06-16 09:34:00 +02:00
signal_numbers.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
spawn.cpp LibC: In posix_spawn(), use _exit instead of exit on child error 2020-06-20 14:43:27 +02:00
spawn.h Add manpages for posix_spawn 2020-07-06 10:01:14 +02:00
stat.cpp LibC: Move stat(), lstat() and fstat() to <sys/stat.h> 2020-08-11 20:29:14 +02:00
stdarg.h Kernel: Absorb LibBareMetal back into the kernel 2020-05-16 12:00:04 +02:00
stdbool.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
stddef.h LibC: Move ssize_t from <stddef.h> to <sys/types.h> 2020-05-23 17:03:41 +02:00
stdint.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
stdio.cpp LibC: Fix off-by-one in snprintf() 2020-08-22 20:55:10 +02:00
stdio.h Kernel+LibC: Fix various build issues introduced by ssize_t 2020-05-23 15:27:33 +02:00
stdlib.cpp malloc: Keep some stats and dump them at process exit if LIBC_DUMP_MALLOC_STATS is set 2020-08-17 09:43:23 +02:00
stdlib.h malloc: Keep some stats and dump them at process exit if LIBC_DUMP_MALLOC_STATS is set 2020-08-17 09:43:23 +02:00
string.cpp LibC: Implement strlcpy 2020-08-24 00:45:03 +02:00
string.h LibC: Stub and test strlcpy 2020-08-24 00:45:03 +02:00
strings.cpp Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
strings.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
syslog.cpp AK: Add a forward declaration header 2020-02-14 23:31:18 +01:00
syslog.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
termcap.cpp LibC: Mark compilation-unit-only functions as static 2020-08-12 20:40:59 +02:00
termcap.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
termios.cpp LibC: Implement tcflush(3) 2020-07-11 11:33:33 +02:00
termios.h LibC: Implement cf{g,s}et{i,o}speed 2020-07-04 10:49:36 +02:00
time.cpp LibC: Fix strftime() for max_size=0 2020-08-24 00:45:03 +02:00
time.h LibC: Add timegm() 2020-08-21 12:11:48 +02:00
times.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
ulimit.cpp LibC: Log calls to getrusage 2020-05-07 23:32:11 +02:00
ulimit.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
unistd.cpp Kernel+LibC+UserspaceEmulator: Bring back sys$dup2() 2020-08-15 11:11:34 +02:00
unistd.h LibC: Move stat(), lstat() and fstat() to <sys/stat.h> 2020-08-11 20:29:14 +02:00
utime.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
utime.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
utmp.h LibC: Add missing <sys/time.h> include in <utmp.h> 2020-05-11 09:50:42 +02:00
utsname.cpp Kernel: Move headers intended for userspace use into Kernel/API/ 2020-07-04 17:22:23 +02:00
wchar.cpp Meta: Add license header to source files 2020-01-18 09:45:54 +01:00
wchar.h Meta: Add license header to source files 2020-01-18 09:45:54 +01:00