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std.c: fix msghdr struct on big endian targets

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This commit is contained in:
Andrew Kelley 2025-10-27 21:49:45 -07:00
parent a28d3059e6
commit c0c2010535
1 changed files with 16 additions and 4 deletions
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20
lib/std/c.zig
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@ -1,12 +1,14 @@
const std = @import("std");
const builtin = @import("builtin"); const builtin = @import("builtin");
const native_abi = builtin.abi;
const native_arch = builtin.cpu.arch;
const native_os = builtin.os.tag;
const native_endian = builtin.cpu.arch.endian();
const std = @import("std");
const c = @This(); const c = @This();
const maxInt = std.math.maxInt; const maxInt = std.math.maxInt;
const assert = std.debug.assert; const assert = std.debug.assert;
const page_size = std.heap.page_size_min; const page_size = std.heap.page_size_min;
const native_abi = builtin.abi;
const native_arch = builtin.cpu.arch;
const native_os = builtin.os.tag;
const linux = std.os.linux; const linux = std.os.linux;
const emscripten = std.os.emscripten; const emscripten = std.os.emscripten;
const wasi = std.os.wasi; const wasi = std.os.wasi;
@ -4118,9 +4120,13 @@ const posix_msghdr = extern struct {
name: ?*sockaddr, name: ?*sockaddr,
namelen: socklen_t, namelen: socklen_t,
iov: [*]iovec, iov: [*]iovec,
pad0: if (@sizeOf(usize) == 8 and native_endian == .big) u32 else u0 = 0,
iovlen: u32, iovlen: u32,
pad1: if (@sizeOf(usize) == 8 and native_endian == .little) u32 else u0 = 0,
control: ?*anyopaque, control: ?*anyopaque,
pad2: if (@sizeOf(usize) == 8 and native_endian == .big) u32 else u0 = 0,
controllen: socklen_t, controllen: socklen_t,
pad3: if (@sizeOf(usize) == 8 and native_endian == .little) u32 else u0 = 0,
flags: u32, flags: u32,
}; };
@ -4148,9 +4154,13 @@ const posix_msghdr_const = extern struct {
name: ?*const sockaddr, name: ?*const sockaddr,
namelen: socklen_t, namelen: socklen_t,
iov: [*]const iovec_const, iov: [*]const iovec_const,
pad0: if (@sizeOf(usize) == 8 and native_endian == .big) u32 else u0 = 0,
iovlen: u32, iovlen: u32,
pad1: if (@sizeOf(usize) == 8 and native_endian == .little) u32 else u0 = 0,
control: ?*const anyopaque, control: ?*const anyopaque,
pad2: if (@sizeOf(usize) == 8 and native_endian == .big) u32 else u0 = 0,
controllen: socklen_t, controllen: socklen_t,
pad3: if (@sizeOf(usize) == 8 and native_endian == .little) u32 else u0 = 0,
flags: u32, flags: u32,
}; };
@ -4193,7 +4203,9 @@ pub const cmsghdr = switch (native_os) {
}; };
const posix_cmsghdr = extern struct { const posix_cmsghdr = extern struct {
pad0: if (@sizeOf(usize) == 8 and native_endian == .big) u32 else u0 = 0,
len: socklen_t, len: socklen_t,
pad1: if (@sizeOf(usize) == 8 and native_endian == .little) u32 else u0 = 0,
level: c_int, level: c_int,
type: c_int, type: c_int,
}; };