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/* $OpenBSD: uthread_dup2.c,v 1.7 2003/02/05 05:51:51 marc Exp $ */
/* PUBLIC DOMAIN <marc@snafu.org> */
#include <errno.h>
#include <unistd.h>
#ifdef _THREAD_SAFE
#include <pthread.h>
#include "pthread_private.h"
int
dup2(int fd, int newfd)
{
int ret;
if (newfd >= 0 && newfd < _thread_dtablesize &&
newfd != _thread_kern_pipe[0] && newfd != _thread_kern_pipe[1]) {
ret = _FD_LOCK(fd, FD_RDWR, NULL);
if (ret == 0) {
ret = _thread_sys_dup2(fd, newfd);
if (ret != -1)
if (_thread_fd_table_dup(fd, newfd) == -1) {
close(newfd);
ret = -1;
}
_FD_UNLOCK(fd, FD_RDWR);
}
} else {
errno = EBADF;
ret = -1;
}
return (ret);
}
#endif
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