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std: add in_pktinfo and in6_pktinfo structs defs

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in_pktinfo is only used on a few targets for the IP_PKTINFO
sockopt, as many BSDs use an alternate mechanism (IP_RECVDSTADDR)
that doesn't require a special struct.  in6_pktinfo is more
universal.
This commit is contained in:
Brandon Black 2025-09-09 16:43:12 -05:00
parent c449a30213
commit 3e372f1994
3 changed files with 44 additions and 0 deletions
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29
lib/std/c.zig
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@ -4087,6 +4087,35 @@ pub const ifreq = switch (native_os) {
},
else => void,
};
pub const in_pktinfo = switch (native_os) {
.linux => linux.in_pktinfo,
// https://github.com/kofemann/opensolaris/blob/80192cd83bf665e708269dae856f9145f7190f74/usr/src/uts/common/netinet/in.h#L1084
// https://github.com/illumos/illumos-gate/blob/608eb926e14f4ba4736b2d59e891335f1cba9e1e/usr/src/uts/common/netinet/in.h#L1132
// https://github.com/apple/darwin-xnu/blob/2ff845c2e033bd0ff64b5b6aa6063a1f8f65aa32/bsd/netinet/in.h#L696
.solaris, .illumos, .driverkit, .ios, .macos, .tvos, .watchos, .visionos => extern struct {
ifindex: u32,
spec_dst: u32,
addr: u32,
},
else => void,
};
pub const in6_pktinfo = switch (native_os) {
.linux => linux.in6_pktinfo,
// https://github.com/freebsd/freebsd-src/blob/9bfbc6826f72eb385bf52f4cde8080bccf7e3ebd/sys/netinet6/in6.h#L547
// https://github.com/DragonFlyBSD/DragonFlyBSD/blob/6098912863ed4c7b3f70d7483910ce2956cf4ed3/sys/netinet6/in6.h#L575
// https://github.com/NetBSD/src/blob/80bf25a5691072d4755e84567ccbdf0729370dea/sys/netinet6/in6.h#L468
// https://github.com/openbsd/src/blob/718a31b40d39fc6064de6355eb144e74633133fc/sys/netinet6/in6.h#L365
// https://github.com/kofemann/opensolaris/blob/80192cd83bf665e708269dae856f9145f7190f74/usr/src/uts/common/netinet/in.h#L1093
// https://github.com/illumos/illumos-gate/blob/608eb926e14f4ba4736b2d59e891335f1cba9e1e/usr/src/uts/common/netinet/in.h#L114IP1
// https://github.com/apple/darwin-xnu/blob/2ff845c2e033bd0ff64b5b6aa6063a1f8f65aa32/bsd/netinet6/in6.h#L737
// https://github.com/haiku/haiku/blob/2aab5f5f14aeb3f34c3a3d9a9064cc3c0d914bea/headers/posix/netinet6/in6.h#L63
// https://github.com/SerenityOS/serenity/blob/5bd8af99be0bc4b2e14f361fd7d7590e6bcfa4d6/Kernel/API/POSIX/sys/socket.h#L122
.freebsd, .dragonfly, .netbsd, .openbsd, .solaris, .illumos, .driverkit, .ios, .macos, .tvos, .watchos, .visionos, .haiku, .serenity => extern struct {
addr: [16]u8,
ifindex: u32,
},
else => void,
};
pub const itimerspec = switch (native_os) {
.linux => linux.itimerspec,
.haiku => extern struct {

13
lib/std/os/linux.zig
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@ -4524,6 +4524,19 @@ pub const IPV6 = struct {
pub const FREEBIND = 78;
};
// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/in.h?id=64e844505bc08cde3f346f193cbbbab0096fef54#n250
pub const in_pktinfo = extern struct {
ifindex: i32,
spec_dst: u32,
addr: u32,
};
// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/ipv6.h?id=f24987ef6959a7efaf79bffd265522c3df18d431#n22
pub const in6_pktinfo = extern struct {
addr: [16]u8,
ifindex: i32,
};
/// IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
/// and FCS/CRC (frame check sequence).
pub const ETH = struct {

2
lib/std/posix.zig
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@ -134,6 +134,8 @@ pub const fd_t = system.fd_t;
pub const file_obj = system.file_obj;
pub const gid_t = system.gid_t;
pub const ifreq = system.ifreq;
pub const in_pktinfo = system.in_pktinfo;
pub const in6_pktinfo = system.in6_pktinfo;
pub const ino_t = system.ino_t;
pub const mcontext_t = system.mcontext_t;
pub const mode_t = system.mode_t;