diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-09-07 14:13:58 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-14 18:00:06 -0300 |
| commit | 8dfb169c80b56cf25494d052ddf410dc55f2f5a3 (patch) | |
| tree | 47ef6107ecb9e9323c8703e5424b77676a27f743 /sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h | |
| parent | 5767b0ddcb592546fe8d978dd8f06904756373dd (diff) | |
| download | glibc-8dfb169c80b56cf25494d052ddf410dc55f2f5a3.tar glibc-8dfb169c80b56cf25494d052ddf410dc55f2f5a3.tar.gz glibc-8dfb169c80b56cf25494d052ddf410dc55f2f5a3.tar.bz2 glibc-8dfb169c80b56cf25494d052ddf410dc55f2f5a3.zip | |
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32-bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h new file mode 100644 index 0000000000..f4668db537 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h @@ -0,0 +1,30 @@ +/* Compat socket constants used in 64-bit compat code. + 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/>. */ + +#ifndef _SOCKET_CONSTANTS_TIME64_H +#define _SOCKET_CONSTANTS_TIME64_H + +/* The compat code requires the SO_* constants used for both 32 and 64-bit + time_t, however they were only added on v5.1 kernel. */ + +#define COMPAT_SO_RCVTIMEO_OLD 8192 +#define COMPAT_SO_SNDTIMEO_OLD 16384 +#define COMPAT_SO_RCVTIMEO_NEW 68 +#define COMPAT_SO_SNDTIMEO_NEW 69 + +#endif |