mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 10:52:30 +00:00
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
|
#define _GNU_SOURCE
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdarg.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <syscall.h>
|
||
|
|
#include "syscall.h"
|
||
|
|
|
||
|
|
#include <features.h>
|
||
|
|
#if defined(__GLIBC__) && __GLIBC__ >= 2
|
||
|
|
# define GLIBC_MINOR __GLIBC_MINOR__
|
||
|
|
#elif defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ >= 2
|
||
|
|
# define GLIBC_MINOR __GNU_LIBRARY_MINOR__
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(GLIBC_MINOR) && GLIBC_MINOR >= 28
|
||
|
|
|
||
|
|
int fcntl64(int fd, int cmd, ...)
|
||
|
|
{
|
||
|
|
unsigned long arg;
|
||
|
|
va_list ap;
|
||
|
|
va_start(ap, cmd);
|
||
|
|
arg = va_arg(ap, unsigned long);
|
||
|
|
va_end(ap);
|
||
|
|
if (cmd == F_SETFL) arg |= O_LARGEFILE;
|
||
|
|
if (cmd == F_SETLKW) return syscall(SYS_fcntl, fd, cmd, (void *)arg);
|
||
|
|
if (cmd == F_GETOWN) {
|
||
|
|
struct f_owner_ex ex;
|
||
|
|
int ret = __syscall(SYS_fcntl, fd, F_GETOWN_EX, &ex);
|
||
|
|
if (ret == -EINVAL) return __syscall(SYS_fcntl, fd, cmd, (void *)arg);
|
||
|
|
if (ret) return __syscall_ret(ret);
|
||
|
|
return ex.type == F_OWNER_PGRP ? -ex.pid : ex.pid;
|
||
|
|
}
|
||
|
|
if (cmd == F_DUPFD_CLOEXEC) {
|
||
|
|
int ret = __syscall(SYS_fcntl, fd, F_DUPFD_CLOEXEC, arg);
|
||
|
|
if (ret != -EINVAL) {
|
||
|
|
if (ret >= 0)
|
||
|
|
__syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
|
||
|
|
return __syscall_ret(ret);
|
||
|
|
}
|
||
|
|
ret = __syscall(SYS_fcntl, fd, F_DUPFD_CLOEXEC, 0);
|
||
|
|
if (ret != -EINVAL) {
|
||
|
|
if (ret >= 0) __syscall(SYS_close, ret);
|
||
|
|
return __syscall_ret(-EINVAL);
|
||
|
|
}
|
||
|
|
ret = __syscall(SYS_fcntl, fd, F_DUPFD, arg);
|
||
|
|
if (ret >= 0) __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
|
||
|
|
return __syscall_ret(ret);
|
||
|
|
}
|
||
|
|
switch (cmd) {
|
||
|
|
case F_SETLK:
|
||
|
|
case F_GETLK:
|
||
|
|
case F_GETOWN_EX:
|
||
|
|
case F_SETOWN_EX:
|
||
|
|
return syscall(SYS_fcntl, fd, cmd, (void *)arg);
|
||
|
|
default:
|
||
|
|
return syscall(SYS_fcntl, fd, cmd, arg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|