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authorFlorian Weimer <fweimer@redhat.com>2021-07-21 11:42:31 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-07-21 11:58:16 +0200
commit8b2c706a9d0365793c88b044c69b78724b3078af (patch)
tree619ad3c12003afb223738e9334d9749d3b46aa95 /sysdeps
parentb39ffab860cd743a82c91946619f1b8158b0b65e (diff)
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socket: Add time64 alias for sendmmsg
Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/Makefile2
-rw-r--r--sysdeps/unix/sysv/linux/Versions1
-rw-r--r--sysdeps/unix/sysv/linux/arm/be/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/arm/le/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/csky/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/hppa/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/i386/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/be/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/microblaze/le/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/nios2/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/sendmmsg.c3
-rw-r--r--sysdeps/unix/sysv/linux/sh/be/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/sh/le/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist1
-rw-r--r--sysdeps/unix/sysv/linux/tst-scm_rights-time64.c1
-rw-r--r--sysdeps/unix/sysv/linux/tst-scm_rights.c186
24 files changed, 212 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 123f15c2e3..76ad06361c 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -122,6 +122,7 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
tst-ntp_gettimex tst-sigtimedwait tst-misalign-clone \
tst-close_range \
tst-prctl \
+ tst-scm_rights \
# tests
# Test for the symbol version of fcntl that was replaced in glibc 2.28.
@@ -141,6 +142,7 @@ tests-time64 += \
tst-sigtimedwait-time64 \
tst-timerfd-time64 \
tst-prctl-time64 \
+ tst-scm_rights-time64 \
# tests-time64
tests-clone-internal = \
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index cff3d476da..a8ec041371 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -265,6 +265,7 @@ libc {
__semctl64;
__semtimedop64;
__sem_timedwait64;
+ __sendmmsg64;
__setitimer64;
__settimeofday64;
__shmctl64;
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index a108dccfe9..740081f235 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -266,6 +266,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index 3511d35f5e..55f17e1ee3 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -263,6 +263,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index 40342891a5..610f59aad7 100644
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2422,6 +2422,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index 1502aaddd4..3c6ce135e2 100644
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -2373,6 +2373,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 70a0f7f1c3..2fae97c00c 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2557,6 +2557,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index 13ac607c49..c146c01b62 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -267,6 +267,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index 662a519095..dc23970913 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2500,6 +2500,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index fc0c6b6acc..63b86f4613 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2473,6 +2473,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index 56a52de049..4f2811c869 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2470,6 +2470,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 4aa9e33b7d..b3491fd1db 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -2465,6 +2465,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index 1c1227301b..7d56039df5 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -2463,6 +2463,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index 876893455e..0898b26a90 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -2471,6 +2471,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
index dc41e17487..19b42df933 100644
--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
@@ -2512,6 +2512,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index 9e3311a978..09179d2a48 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -2527,6 +2527,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index 2ac6aa068f..d45be8ab9e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -2560,6 +2560,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 644f6b734c..c290ae4948 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -2525,6 +2525,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/sendmmsg.c b/sysdeps/unix/sysv/linux/sendmmsg.c
index 6093e9ed70..10aaff4d1f 100644
--- a/sysdeps/unix/sysv/linux/sendmmsg.c
+++ b/sysdeps/unix/sysv/linux/sendmmsg.c
@@ -35,3 +35,6 @@ __sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
}
libc_hidden_def (__sendmmsg)
weak_alias (__sendmmsg, sendmmsg)
+#if __TIMESIZE != 64
+weak_alias (__sendmmsg, __sendmmsg64)
+#endif
diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index 369dccc4af..714f7d4f55 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -2380,6 +2380,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index 4254360898..9f858a4f68 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -2377,6 +2377,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 31f43ed414..2420775e21 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -2520,6 +2520,7 @@ GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
+GLIBC_2.34 __sendmmsg64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
diff --git a/sysdeps/unix/sysv/linux/tst-scm_rights-time64.c b/sysdeps/unix/sysv/linux/tst-scm_rights-time64.c
new file mode 100644
index 0000000000..302613cbfa
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-scm_rights-time64.c
@@ -0,0 +1 @@
+#include "tst-scm_rights.c"
diff --git a/sysdeps/unix/sysv/linux/tst-scm_rights.c b/sysdeps/unix/sysv/linux/tst-scm_rights.c
new file mode 100644
index 0000000000..c85b873125
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-scm_rights.c
@@ -0,0 +1,186 @@
+/* Smoke test for SCM_RIGHTS.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* This test passes a file descriptor from a subprocess to the parent
+ process, using recvmsg/sendmsg or recvmmsg/sendmmsg. */
+
+#include <fcntl.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <string.h>
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+/* String sent over the socket. */
+static char DATA[] = "descriptor";
+
+/* Path that is to be opened and sent over the socket. */
+#define PATH "/etc"
+
+/* True if sendmmsg/recvmmsg is to be used. */
+static bool use_multi_call;
+
+/* The pair of sockets used for coordination. The subprocess uses
+ sockets[1]. */
+static int sockets[2];
+
+/* Subprocess side of one send/receive test. */
+_Noreturn static void
+subprocess (void)
+{
+ /* The file descriptor to send. */
+ int fd = xopen (PATH, O_RDONLY, 0);
+
+ struct iovec iov = { .iov_base = DATA, .iov_len = sizeof (DATA) };
+ union
+ {
+ struct cmsghdr header;
+ char bytes[CMSG_SPACE (sizeof (int))];
+ } cmsg_storage;
+ struct mmsghdr mmhdr =
+ {
+ .msg_hdr =
+ {
+ .msg_iov = &iov,
+ .msg_iovlen = 1,
+ .msg_control = cmsg_storage.bytes,
+ .msg_controllen = sizeof (cmsg_storage),
+ },
+ };
+
+ /* Configure the file descriptor for sending. */
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR (&mmhdr.msg_hdr);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ cmsg->cmsg_len = CMSG_LEN (sizeof (int));
+ memcpy (CMSG_DATA (cmsg), &fd, sizeof (fd));
+ mmhdr.msg_hdr.msg_controllen = cmsg->cmsg_len;
+
+ /* Perform the send operation. */
+ int ret;
+ if (use_multi_call)
+ {
+ ret = sendmmsg (sockets[1], &mmhdr, 1, 0);
+ if (ret >= 0)
+ ret = mmhdr.msg_len;
+ }
+ else
+ ret = sendmsg (sockets[1], &mmhdr.msg_hdr, 0);
+ TEST_COMPARE (ret, sizeof (DATA));
+
+ xclose (fd);
+
+ /* Stop the process from exiting. */
+ while (true)
+ pause ();
+}
+
+/* Performs one send/receive test. */
+static void
+one_test (void)
+{
+ TEST_COMPARE (socketpair (AF_UNIX, SOCK_STREAM, 0, sockets), 0);
+
+ pid_t pid = xfork ();
+ if (pid == 0)
+ subprocess ();
+
+ char data_storage[sizeof (DATA) + 1];
+ struct iovec iov =
+ {
+ .iov_base = data_storage,
+ .iov_len = sizeof (data_storage)
+ };
+ union
+ {
+ struct cmsghdr header;
+ char bytes[CMSG_SPACE (sizeof (int))];
+ } cmsg_storage;
+ struct mmsghdr mmhdr =
+ {
+ .msg_hdr =
+ {
+ .msg_iov = &iov,
+ .msg_iovlen = 1,
+ .msg_control = cmsg_storage.bytes,
+ .msg_controllen = sizeof (cmsg_storage),
+ },
+ };
+
+ /* Set up the space for receiving the file descriptor. */
+ struct cmsghdr *cmsg = CMSG_FIRSTHDR (&mmhdr.msg_hdr);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ cmsg->cmsg_len = CMSG_LEN (sizeof (int));
+ mmhdr.msg_hdr.msg_controllen = cmsg->cmsg_len;
+
+ /* Perform the receive operation. */
+ int ret;
+ if (use_multi_call)
+ {
+ ret = recvmmsg (sockets[0], &mmhdr, 1, 0, NULL);
+ if (ret >= 0)
+ ret = mmhdr.msg_len;
+ }
+ else
+ ret = recvmsg (sockets[0], &mmhdr.msg_hdr, 0);
+ TEST_COMPARE (ret, sizeof (DATA));
+ TEST_COMPARE_BLOB (data_storage, sizeof (DATA), DATA, sizeof (DATA));
+
+ /* Extract the file descriptor. */
+ TEST_VERIFY (CMSG_FIRSTHDR (&mmhdr.msg_hdr) != NULL);
+ TEST_COMPARE (CMSG_FIRSTHDR (&mmhdr.msg_hdr)->cmsg_len,
+ CMSG_LEN (sizeof (int)));
+ TEST_VERIFY (&cmsg_storage.header == CMSG_FIRSTHDR (&mmhdr.msg_hdr));
+ int fd;
+ memcpy (&fd, CMSG_DATA (CMSG_FIRSTHDR (&mmhdr.msg_hdr)), sizeof (fd));
+
+ /* Verify the received file descriptor. */
+ TEST_VERIFY (fd > 2);
+ struct stat64 st_fd;
+ TEST_COMPARE (fstat64 (fd, &st_fd), 0);
+ struct stat64 st_path;
+ TEST_COMPARE (stat64 (PATH, &st_path), 0);
+ TEST_COMPARE (st_fd.st_ino, st_path.st_ino);
+ TEST_COMPARE (st_fd.st_dev, st_path.st_dev);
+ xclose (fd);
+
+ /* Terminate the subprocess. */
+ TEST_COMPARE (kill (pid, SIGUSR1), 0);
+ int status;
+ TEST_COMPARE (xwaitpid (pid, &status, 0), pid);
+ TEST_VERIFY (WIFSIGNALED (status));
+ TEST_COMPARE (WTERMSIG (status), SIGUSR1);
+
+ xclose (sockets[0]);
+ xclose (sockets[1]);
+}
+
+static int
+do_test (void)
+{
+ one_test ();
+ use_multi_call = true;
+ one_test ();
+ return 0;
+}
+
+#include <support/test-driver.c>