Commit Graph

525 Commits

Author SHA1 Message Date
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Pavel Simerda
639a0ef8ab Remove redundant GAIH_OKIFUNSPEC and GAIH_EAI.
Only gaih_inet() and gaih_inet_serv() use a special bit flag denoted
by the GAIH_OKIFUNSPEC macro. Only the return value of
gaih_inet_serv() is actively checked for the bit flag which is
redundant because it just copies the nonzero property of the value
otherwise returned. The return value of gaih_inet() is only checked
for being zero and then the bit flag is filtered out. As the bit flag
is set only for otherwise nonzero return values, it doesn't affect the
zero comparison. GAIH_EAI just an alias to ~GAIH_OKIFUNSPEC.
2013-12-02 20:23:13 +05:30
Pavel Simerda
f524d6a8e4 getaddrinfo: remove dead code 2013-12-02 20:17:17 +05:30
Siddhesh Poyarekar
7cbcdb3699 Fix stack overflow due to large AF_INET6 requests
Resolves #16072 (CVE-2013-4458).

This patch fixes another stack overflow in getaddrinfo when it is
called with AF_INET6.  The AF_UNSPEC case was fixed as CVE-2013-1914,
but the AF_INET6 case went undetected back then.
2013-10-25 10:22:12 +05:30
Allan McRae
894f3f1049 Fix incorrect getaddrinfo assertion trigger
[BZ #9954]

With the following /etc/hosts:
127.0.0.1       www.my-domain.es
127.0.1.1       www.my-domain.es
192.168.0.1     www.my-domain.es

Using getaddrinfo() on www.my-domain.es, trigger the following assertion:
../sysdeps/posix/getaddrinfo.c:1473: rfc3484_sort: Assertion
`src->results[i].native == -1 || src->results[i].native == a1_native' failed.

This is due to two different bugs:
- In rfc3484_sort() rule 7, src->results[i].native is assigned even if
src->results[i].index is -1, meaning that no interface is associated.
- In getaddrinfo() the source IP address used with the lo interface needs a
special case, as it can be any IP within 127.X.Y.Z.
2013-10-25 14:28:32 +10:00
Andreas Schwab
b957ced889 Don't use gethostbyaddr to determine canonical name 2013-10-17 16:34:27 +02:00
David S. Miller
75b4202ab0 Fix readdir regressions on sparc 32-bit.
* sysdeps/posix/dirstream.h (struct __dirstream): Fix alignment of
	directory block.
2013-10-10 22:32:36 -07:00
Andreas Schwab
b2179107f3 Properly cache the result from looking up the nss database config 2013-09-30 10:29:13 +02:00
Siddhesh Poyarekar
3a30923983 Use __glibc_unlikely instead of __builtin_expect (..., 0) 2013-08-28 09:44:19 +05:30
Florian Weimer
91ce40854d CVE-2013-4237, BZ #14699: Buffer overflow in readdir_r
* sysdeps/posix/dirstream.h (struct __dirstream): Add errcode
	member.
	* sysdeps/posix/opendir.c (__alloc_dir): Initialize errcode
	member.
	* sysdeps/posix/rewinddir.c (rewinddir): Reset errcode member.
	* sysdeps/posix/readdir_r.c (__READDIR_R): Enforce NAME_MAX limit.
	Return delayed error code.  Remove GETDENTS_64BIT_ALIGNED
	conditional.
	* sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c: Do not define
	GETDENTS_64BIT_ALIGNED.
	* sysdeps/unix/sysv/linux/i386/readdir64_r.c: Likewise.
	* manual/filesys.texi (Reading/Closing Directory): Document
	ENAMETOOLONG return value of readdir_r.  Recommend readdir more
	strongly.
	* manual/conf.texi (Limits for Files): Add portability note to
	NAME_MAX, PATH_MAX.
	(Pathconf): Add portability note for _PC_NAME_MAX, _PC_PATH_MAX.
2013-08-16 09:40:34 +02:00
Siddhesh Poyarekar
89fb683558 Fix symbol definitions for __clock_* functions
__clock_gettime and other __clock_* functions could result in an extra
PLT reference within libc.so if it actually gets used.  None of the
code currently uses them, which is why this probably went unnoticed.
2013-06-11 11:11:11 +05:30
Joseph Myers
60d2f8f3c7 Use (void) in no-arguments function definitions. 2013-06-08 00:22:23 +00:00
Siddhesh Poyarekar
3d04f5db20 Set EAI_SYSTEM only when h_errno is NETDB_INTERNAL
Fixes BZ #15339.

NSS_STATUS_UNAVAIL may mean that a necessary input resource is not
available.  This could occur in a number of cases including when the
network is down, system runs out of file descriptors, etc.  The
correct differentiator in such a case is the h_errno, which gives the
nature of failure.  In case of failures other than a simple 'not
found', we set h_errno as NETDB_INTERNAL and let errno be the
identifier for the exact error.
2013-05-21 21:54:41 +05:30
Ryan S. Arnold
e054f49430 Add #include <stdint.h> for uint[32|64]_t usage (except installed headers). 2013-05-16 11:32:54 -05:00
Roland McGrath
c74058300c Clean up POSIX.1 implementation of truncate. 2013-05-06 14:56:13 -07:00
Roland McGrath
1324e37f2e Add missing #include in sysdeps/posix/opendir.c. 2013-05-01 09:27:09 -07:00
Roland McGrath
d6f9bc519d Fix name space use in last commit. 2013-04-23 15:57:25 -07:00
Roland McGrath
87f51853ce Add generic POSIX implementation of C11 timespec_get. 2013-04-23 15:28:59 -07:00
Siddhesh Poyarekar
2169712d9c Minor cleanup in getaddrinfo
Replace repeated computations of alloca size with a local variable
that stores the computed value.
2013-04-22 10:24:00 +05:30
Andreas Schwab
1cef1b1908 Fix stack overflow in getaddrinfo with many results 2013-04-03 17:39:15 +02:00
Roland McGrath
356b348023 Never call syslog in __libc_message. 2013-03-28 10:38:37 -07:00
Roland McGrath
a600e5cef5 Consolidate Linux and POSIX libc_fatal code. 2013-03-19 17:07:15 -07:00
Joseph Myers
e97ed6ddbe Remove bp-sym.h and BP_SYM uses from C code. 2013-02-14 13:12:02 +00:00
Pino Toscano
92a601b883 ulimit: include <limits.h> 2013-01-23 17:27:45 +01:00
Pino Toscano
9cbbc4aebe ulimit: move linux implementation as posix
The linux implementation of ulimit works correctly and has nothing specific
to Linux, so move it as general posix implementation.
2013-01-23 17:25:53 +01:00
Joseph Myers
0e2f956295 Fix copyright notice corruption from update-copyright bug. 2013-01-02 19:28:45 +00:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
f4cf5f2d8b Add script to update copyright notices and reformat some to facilitate its use. 2013-01-01 16:29:10 +00:00
Siddhesh Poyarekar
cfde9b463d Return EAI_SYSTEM if we're out of file descriptors
Resolves BZ #14719.
2012-11-19 13:02:48 +05:30
Joseph Myers
531f1ae0a7 Generate /usr/libexec/getconf files when cross-compiling. 2012-11-17 01:49:19 +00:00
Chris Metcalf
017678433c Suppress incorrect link warnings for NSS symbols
When glibc is built with --enable-static-nss, the warning that
using NSS symbols requires the nss shared objects to be present
is no longer true, as those symbols are built into libc.  Suppress
the warning for those symbols by providing a new macro
(nss_interface_function) for the NSS functions that is defined as
static_link_warning in the normal case, and empty for static NSS.
2012-10-30 14:14:33 -04:00
Roland McGrath
6e6249d0b4 BZ#14743: Move clock_* symbols from librt to libc. 2012-10-24 14:50:46 -07:00
Florian Weimer
172a631a1f __alloc_dir: avoid integer overflow in malloc argument 2012-10-16 10:33:50 +02:00
Pino Toscano
5bb0c10a8f sysconf/posix: handle _SC_LEVEL4_CACHE_LINESIZE 2012-10-03 22:57:38 +02:00
Roland McGrath
ea4d37b316 Implement POSIX-generic sleep via nanosleep rather than SIGARLM. 2012-09-28 16:26:33 -07:00
Jeff Law
115411772b [BZ #11438]
* sysdeps/posix/getaddrinfo.c (default_scopes): Map RFC 1918
        * addresses
        to global scope.
        * posix/tst-rfc3484.c: Verify 10/8, 172.16/12 and 196.128/16
        addresses are in the same scope as 192.0.2/24.
        * posix/gai.conf: Document new scope table defaults.
2012-09-28 10:15:05 -06:00
Jeff Law
8479f23aa1 * sysdeps/posix/getaddrinfo.c (gaih_inet): Only use gethostbyname4_r
if the family is PF_UNSPEC.
2012-08-22 11:41:40 -06:00
Roland McGrath
7c6f9d53c1 Move some things from sysdeps/unix to sysdeps/posix. 2012-08-17 13:52:32 -07:00
Roland McGrath
fbc723bb37 Fix typo in last change. 2012-08-17 11:49:00 -07:00
Roland McGrath
a084405777 Fix getaddrinfo for [!_STATBUF_ST_NSEC] case. 2012-08-17 11:47:06 -07:00
Roland McGrath
a3f95dcc57 Add casts to suppress warnings in system.c under [!_LIBC_REENTRANT]. 2012-08-15 10:08:32 -07:00
Roland McGrath
a2433aac7e Add a missing #include. 2012-08-08 10:39:28 -07:00
Roland McGrath
a281decc87 Move common dirent implementation from sysdeps/unix to sysdeps/posix. 2012-08-07 14:47:34 -07:00
Roland McGrath
bea9b19322 Fix lots of bitrot for stub configurations. 2012-07-30 16:34:33 -07:00
Florian Weimer
84b3fd8407 Rename __secure_getenv to secure_getenv 2012-07-25 19:46:22 +02:00
Jeroen van Bemmel
7b6e99be77 Avoid duplicate DNS requests if answer is longer than a implementation
limit

        [BZ #14307]
        * sysdeps/posix/getaddrinfo.c (gaih_inet): Increase the size of
        the temporary buffer used to invoke __gethostbyname2_r,
        __gethostbyaddr_r and gethostbyname4_r to make room for struct
        host_data / struct gaih_addrtuple.
        * resolv/nss_dns/dns-host.c (global scope): Move definition of
        implementation constants MAX_NR_ALIASES and MAX_NR_ADDRS to
        header file nss/nsswitch.h.
        * nss/nsswitch.h (global scope): Add definition of implementation
        constants MAX_NR_ALIASES and MAX_NR_ADDRS (moved from
        resolv/nss_dns/dns-host.c).
2012-07-12 11:31:48 +05:30
Roland McGrath
d6c33fda03 Switch gettimeofday from INTUSE to libc_hidden_proto. 2012-05-24 13:12:34 -07:00
Thomas Schwinge
be971a2b1c Hurd: libc_once_get 2012-05-10 15:57:24 -07:00
Thomas Schwinge
37233df9d1 Hurd: #include <kernel-features.h> 2012-05-10 15:57:24 -07:00
Joseph Myers
4ad451e281 Move sysdeps/unix/sysv/gethostname.c to sysdeps/posix/. 2012-04-23 18:53:47 +00:00