diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/oldrecvmmsg.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/oldrecvmmsg.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/sysdeps/unix/sysv/linux/oldrecvmmsg.c b/sysdeps/unix/sysv/linux/oldrecvmmsg.c deleted file mode 100644 index 4bf849bb58..0000000000 --- a/sysdeps/unix/sysv/linux/oldrecvmmsg.c +++ /dev/null @@ -1,87 +0,0 @@ -/* Compatibility version of recvmsg. - Copyright (C) 2010-2016 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 - <http://www.gnu.org/licenses/>. */ - -#include <sys/socket.h> -#include <sysdep-cancel.h> -#include <socketcall.h> -#include <shlib-compat.h> - -#if __WORDSIZE == 64 -# if SHLIB_COMPAT (libc, GLIBC_2_12, GLIBC_2_24) - -/* Do not use the recvmmsg syscall on socketcall architectures unless - it was added at the same time as the socketcall support or can be - assumed to be present. */ -# if defined __ASSUME_SOCKETCALL \ - && !defined __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL \ - && !defined __ASSUME_RECVMMSG_SYSCALL -# undef __NR_recvmmsg -# endif - -int -__old_recvmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, - int flags, struct timespec *tmo) -{ -# ifdef __NR_recvmmsg - return SYSCALL_CANCEL (recvmmsg, fd, vmessages, vlen, flags, tmo); -# elif defined __NR_socketcall -# ifdef __ASSUME_RECVMMSG_SOCKETCALL - return SOCKETCALL_CANCEL (recvmmsg, fd, vmessages, vlen, flags, tmo); -# else - static int have_recvmmsg; - if (__glibc_likely (have_recvmmsg >= 0)) - { - int ret = SOCKETCALL_CANCEL (recvmmsg, fd, vmessages, vlen, flags, - tmo); - /* The kernel returns -EINVAL for unknown socket operations. - We need to convert that error to an ENOSYS error. */ - if (__builtin_expect (ret < 0, 0) - && have_recvmmsg == 0 - && errno == EINVAL) - { - /* Try another call, this time with an invalid file - descriptor and all other parameters cleared. This call - will not cause any harm and it will return - immediately. */ - ret = SOCKETCALL_CANCEL (invalid, -1); - if (errno == EINVAL) - { - have_recvmmsg = -1; - __set_errno (ENOSYS); - } - else - { - have_recvmmsg = 1; - __set_errno (EINVAL); - } - return -1; - } - return ret; - } - __set_errno (ENOSYS); - return -1; -# endif /* __ASSUME_RECVMMSG_SOCKETCALL */ -# else - __set_errno (ENOSYS); - return -1; -# endif -} -compat_symbol (libc, __old_recvmmsg, recvmmsg, GLIBC_2_12); - -# endif /* SHLIB_COMPAT (libc, GLIBC_2_12, GLIBC_2_24) */ -#endif /* __WORDSIZE == 64 */ |