1*c9945492SAndroid Build Coastguard Worker #define _GNU_SOURCE
2*c9945492SAndroid Build Coastguard Worker #include <unistd.h>
3*c9945492SAndroid Build Coastguard Worker #include <sys/uio.h>
4*c9945492SAndroid Build Coastguard Worker #include <fcntl.h>
5*c9945492SAndroid Build Coastguard Worker #include "syscall.h"
6*c9945492SAndroid Build Coastguard Worker
pwrite(int fd,const void * buf,size_t size,off_t ofs)7*c9945492SAndroid Build Coastguard Worker ssize_t pwrite(int fd, const void *buf, size_t size, off_t ofs)
8*c9945492SAndroid Build Coastguard Worker {
9*c9945492SAndroid Build Coastguard Worker if (ofs == -1) ofs--;
10*c9945492SAndroid Build Coastguard Worker int r = __syscall_cp(SYS_pwritev2, fd,
11*c9945492SAndroid Build Coastguard Worker (&(struct iovec){ .iov_base = (void *)buf, .iov_len = size }),
12*c9945492SAndroid Build Coastguard Worker 1, (long)(ofs), (long)(ofs>>32), RWF_NOAPPEND);
13*c9945492SAndroid Build Coastguard Worker if (r != -EOPNOTSUPP && r != -ENOSYS)
14*c9945492SAndroid Build Coastguard Worker return __syscall_ret(r);
15*c9945492SAndroid Build Coastguard Worker if (fcntl(fd, F_GETFL) & O_APPEND)
16*c9945492SAndroid Build Coastguard Worker return __syscall_ret(-EOPNOTSUPP);
17*c9945492SAndroid Build Coastguard Worker return syscall_cp(SYS_pwrite, fd, buf, size, __SYSCALL_LL_PRW(ofs));
18*c9945492SAndroid Build Coastguard Worker }
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