linux: add missing SOL_* constants

SOL_SOCKET appears to be the only constant that is not the
same across architectures and it was already present in libc.
The constants provided match bionic and the Linux kernel but
are a supseret of those provided by musl and glibc.  They
are just constants, so it should be fine (and avoids upstream
from having to define/maintain them).

Signed-off-by: Paul Osborne <osbpau@gmail.com>

Author: posborne

libc-test/build.rs

@@ -154,6 +154,12 @@ fn main() {
         if !musl {
             cfg.header("linux/netlink.h");
             cfg.header("linux/magic.h");
+            cfg.header("netinet/udp.h");
+            cfg.header("netipx/ipx.h");
+            cfg.header("netax25/ax25.h");
+            cfg.header("netatalk/at.h");
+            cfg.header("netrose/rose.h");
+            cfg.header("netrom/netrom.h");
 
             if !mips {
                 cfg.header("linux/quota.h");
@@ -289,6 +295,24 @@ fn main() {
             "FILE_ATTRIBUTE_INTEGRITY_STREAM" |
             "ERROR_NOTHING_TO_TERMINATE" if mingw => true,
 
+            // these are not in musl
+            "SOL_NETLINK" |
+            "SOL_UDP" |
+            "SOL_AX25" |
+            "SOL_ATALK" |
+            "SOL_NETROM" |
+            "SOL_IPX" |
+            "SOL_ROSE" if musl => true,
+
+            // these are not in glibc or musl yet (but they are in android)
+            "SOL_SCTP" |
+            "SOL_UDPLITE" |
+            "SOL_NETBEUI" |
+            "SOL_LLC" |
+            "SOL_DCCP" |
+            "SOL_NETLINK" |
+            "SOL_TIPC" if linux => true,
+
             "SIG_IGN" => true, // sighandler_t weirdness
 
             // types on musl are defined a little differently

src/unix/notbsd/linux/mod.rs

@@ -308,6 +308,31 @@ pub const ST_IMMUTABLE: ::c_ulong = 512;
 pub const ST_NOATIME: ::c_ulong = 1024;
 pub const ST_NODIRATIME: ::c_ulong = 2048;
 
+pub const SOL_IP: ::c_int = 0;
+pub const SOL_TCP: ::c_int = 6;
+pub const SOL_UDP: ::c_int = 17;
+pub const SOL_IPV6: ::c_int = 41;
+pub const SOL_ICMPV6: ::c_int = 58;
+pub const SOL_SCTP: ::c_int = 132;
+pub const SOL_UDPLITE: ::c_int = 136;
+pub const SOL_RAW: ::c_int = 255;
+pub const SOL_IPX: ::c_int = 256;
+pub const SOL_AX25: ::c_int = 257;
+pub const SOL_ATALK: ::c_int = 258;
+pub const SOL_NETROM: ::c_int = 259;
+pub const SOL_ROSE: ::c_int = 260;
+pub const SOL_DECNET: ::c_int = 261;
+pub const SOL_X25: ::c_int = 262;
+pub const SOL_PACKET: ::c_int = 263;
+pub const SOL_ATM: ::c_int = 264;
+pub const SOL_AAL: ::c_int = 265;
+pub const SOL_IRDA: ::c_int = 266;
+pub const SOL_NETBEUI: ::c_int = 267;
+pub const SOL_LLC: ::c_int = 268;
+pub const SOL_DCCP: ::c_int = 269;
+pub const SOL_NETLINK: ::c_int = 270;
+pub const SOL_TIPC: ::c_int = 271;
+
 pub const RTLD_NEXT: *mut ::c_void = -1i64 as *mut ::c_void;
 pub const RTLD_DEFAULT: *mut ::c_void = 0i64 as *mut ::c_void;
 pub const RTLD_NODELETE: ::c_int = 0x1000;