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The timestamps created by __convert_scm_timestamps only make sense for 64 bit time_t programs, 32 bit time_t programs will ignore 64 bit time_t timestamps since SO_TIMESTAMP will be defined to old values (either by glibc or kernel headers). Worse, if the buffer is not suffice MSG_CTRUNC is set to indicate it (which breaks some programs [1]). This patch makes only 64 bit time_t recvmsg and recvmmsg to call __convert_scm_timestamps. Also, the assumption to called it is changed from __ASSUME_TIME64_SYSCALLS to __TIMESIZE != 64 since the setsockopt might be called by libraries built without __TIME_BITS=64. The MSG_CTRUNC is only set for the 64 bit symbols, it should happen only if 64 bit time_t programs run older kernels. Checked on x86_64-linux-gnu and i686-linux-gnu. [1] https://github.com/systemd/systemd/pull/20567 Reviewed-by: Florian Weimer <fweimer@redhat.com> |
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| .. | ||
| auxv.h | ||
| bitypes.h | ||
| cdefs.h | ||
| dir.h | ||
| epoll.h | ||
| errno.h | ||
| fcntl.h | ||
| file.h | ||
| gmon_out.h | ||
| gmon.h | ||
| ioctl.h | ||
| ipc.h | ||
| mman.h | ||
| msg.h | ||
| param.h | ||
| poll.h | ||
| prctl.h | ||
| profil.h | ||
| queue.h | ||
| random.h | ||
| resource.h | ||
| select.h | ||
| sem.h | ||
| sendfile.h | ||
| shm.h | ||
| signal.h | ||
| single_threaded.h | ||
| socket.h | ||
| stat.h | ||
| statfs.h | ||
| statvfs.h | ||
| sysinfo.h | ||
| syslog.h | ||
| sysmacros.h | ||
| termios.h | ||
| time.h | ||
| timeb.h | ||
| times.h | ||
| ttychars.h | ||
| types.h | ||
| uio.h | ||
| un.h | ||
| unistd.h | ||
| utsname.h | ||
| vfs.h | ||
| vlimit.h | ||
| wait.h | ||
| xattr.h | ||