Adhemerval Zanella 222c2d7f43 network: recvmmsg and sendmmsg standard compliance (BZ#16919) ... POSIX specifies that both msghdr::msg_iovlen and msghdr::msg_controllen to be of size int and socklen_t respectively, however Linux implements it as a size_t. So for 64-bits architecture where sizeof of size_t is larger than socklen_t, both sendmmsg and recvmmsg need to adjust the mmsghdr::msg_hdr internal fields before issuing the syscall itself. This patch fixes it by operating on the padding if it the case. For recvmmsg, the most straightfoward case, only zero padding the fields is suffice. However, for sendmmsg, where adjusting the buffer is out of the contract (since it may point to a read-only data), the function is rewritten to use sendmsg instead (which from previous patch allocates a temporary msghdr to operate on). Also for 64-bit ports that requires it, a new recvmmsg and sendmmsg compat version is created (which uses size_t for both cmsghdr::cmsg_len and internal Tested on x86_64, i686, aarch64, armhf, and powerpc64le. * sysdeps/unix/sysv/linux/Makefile [$(subdir) = socket] (sysdep_routines): Add oldrecvmmsg and oldsendmmsg. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Add recvmmsg and sendmmsg. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/oldrecvmmsg.c: New file. * sysdeps/unix/sysv/linux/oldsendmmsg.c: Likewise. * sysdeps/unix/sysv/linux/recvmmsg.c (__recvmmsg): Adjust msghdr iovlen and controllen fields to adjust to POSIX specification. * sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Likewise.		2016-05-25 17:39:07 -03:00
..
aarch64	This is an optimized memset for AArch64. Memset is split into 4 main cases:	2016-05-12 16:44:53 +01:00
alpha	Update Alpha libm-test-ulps	2016-01-25 10:43:41 -08:00
arm	Fix building glibc master with NDEBUG and --with-cpu.	2016-03-15 23:23:24 -04:00
generic	Fix crash on getauxval call without HAVE_AUX_VECTOR	2016-04-10 23:58:43 +02:00
gnu	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
hppa	hppa: fix dladdr [BZ #19415]	2016-01-08 02:19:26 -05:00
i386	Call init_cpu_features only if SHARED is defined	2016-05-13 08:29:33 -07:00
ia64	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
ieee754	Do not raise "inexact" from generic round (bug 15479).	2016-05-24 17:46:55 +00:00
init_array	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
m68k	m68k: use large PIC model for gcrt1.o	2016-04-30 18:51:43 +02:00
mach	Make padding in struct sockaddr_storage explicit [BZ #20111]	2016-05-23 19:43:09 +02:00
microblaze	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
mips	Fix MIPS64 memcpy regression.	2016-01-28 01:52:05 +00:00
nacl	Fix build with HAVE_AUX_VECTOR	2016-04-11 10:27:25 +02:00
nios2	Maintainence patch for nios2: update ULPS file and localplt.data changes.	2016-01-21 22:58:03 -08:00
nptl	Increase fork signal safety for single-threaded processes [BZ #19703]	2016-05-12 15:26:55 +02:00
posix	getaddrinfo: Convert from extend_alloca to struct scratch_buffer	2016-05-12 14:07:56 +02:00
powerpc	Do not raise "inexact" from powerpc64 ceil, floor, trunc (bug 15479).	2016-05-25 17:42:22 +00:00
pthread	Revert "aio: fix newp->running data race"	2016-05-04 15:52:30 +02:00
s390	S390: Fix utf32 to utf16 handling of low surrogates (disable cu42).	2016-05-25 17:18:06 +02:00
sh	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
sparc	Add _STRING_INLINE_unaligned and string_private.h	2016-02-18 14:55:29 -02:00
tile	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
unix	network: recvmmsg and sendmmsg standard compliance (BZ#16919)	2016-05-25 17:39:07 -03:00
wordsize-32	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
wordsize-64	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
x86	Remove special L2 cache case for Knights Landing	2016-05-20 14:42:00 -07:00
x86_64	Do not raise "inexact" from x86_64 SSE4.1 ceil, floor (bug 15479).	2016-05-24 21:11:18 +00:00