PatchworkOS  19e446b
A non-POSIX operating system.
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dup2.c
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1#include <stdarg.h>
2#include <stdio.h>
3#include <stdlib.h>
4#include <sys/fs.h>
5
7
8fd_t dup2(fd_t oldFd, fd_t newFd)
9{
10 uint64_t result = _syscall_dup2(oldFd, newFd);
11 if (result == ERR)
12 {
14 }
15 return result;
16}
#define errno
Error number variable.
Definition errno.h:27
fd_t dup2(fd_t oldFd, fd_t newFd)
System call for duplicating file descriptors, with a destination.
Definition dup2.c:8
#define ERR
Integer error value.
Definition ERR.h:17
__UINT64_TYPE__ fd_t
File descriptor type.
Definition fd_t.h:10
__UINT64_TYPE__ uint64_t
Definition stdint.h:17
static fd_t _syscall_dup2(fd_t oldFd, fd_t newFd)
Definition syscalls.h:212
static errno_t _syscall_errno(void)
Definition syscalls.h:107