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std.os.linux.accept/accept4: allow null for addr and len

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std.os.accept already wants to allow null, which matches `man 3p accept`:

>  address     Either a null pointer, or a pointer to a sockaddr structure
>              where the address of the connecting  socket  shall  be  re‐
>              turned.
>
>  address_len Either  a  null pointer, if address is a null pointer, or a
>              pointer to a socklen_t object which on input specifies  the
>              length  of  the  supplied sockaddr structure, and on output
>              specifies the length of the stored address.

Fixes ziglang#6832.
This commit is contained in:
johnLate 2020-10-27 08:00:35 +01:00 committed by LemonBoy
parent 8044ed4c66
commit 23c28c72b7
1 changed files with 2 additions and 2 deletions
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4
lib/std/os/linux.zig
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@ -1003,14 +1003,14 @@ pub fn socketpair(domain: i32, socket_type: i32, protocol: i32, fd: [2]i32) usiz
return syscall4(.socketpair, @intCast(usize, domain), @intCast(usize, socket_type), @intCast(usize, protocol), @ptrToInt(&fd[0]));
}
pub fn accept(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t) usize {
pub fn accept(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t) usize {
if (builtin.arch == .i386) {
return socketcall(SC_accept, &[4]usize{ fd, addr, len, 0 });
}
return accept4(fd, addr, len, 0);
}
pub fn accept4(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t, flags: u32) usize {
pub fn accept4(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t, flags: u32) usize {
if (builtin.arch == .i386) {
return socketcall(SC_accept4, &[4]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len), flags });
}