user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/options/bsd/generic/arpa-nameser.cpp

@@ -0,0 +1,41 @@
+#include <errno.h>
+#include <arpa/nameser.h>
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+
+// The ns_get* and ns_put* functions are taken from musl.
+unsigned ns_get16(const unsigned char *cp) {
+	return cp[0] << 8 | cp[1];
+}
+
+unsigned long ns_get32(const unsigned char *cp) {
+	return (unsigned)cp[0] << 24 | cp[1] << 16 | cp[2] << 8 | cp[3];
+}
+
+void ns_put16(unsigned s, unsigned char *cp) {
+	*cp++ = s >> 8;
+	*cp++ = s;
+}
+
+void ns_put32(unsigned long l, unsigned char *cp) {
+	*cp++ = l >> 24;
+	*cp++ = l >> 16;
+	*cp++ = l >> 8;
+	*cp++ = l;
+}
+
+int ns_initparse(const unsigned char *, int, ns_msg *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+int ns_parserr(ns_msg *, ns_sect, int, ns_rr *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}
+
+int ns_name_uncompress(const unsigned char *, const unsigned char *,
+				    const unsigned char *, char *, size_t) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}

user/include/mlibc/options/bsd/generic/bsd_stdlib.cpp

@@ -0,0 +1,27 @@
+
+#include <errno.h>
+#include <bits/ensure.h>
+
+#include <stdlib.h>
+
+#include <mlibc/bsd-sysdeps.hpp>
+
+int getloadavg(double *samples, int nsample) {
+	auto sysdep = MLIBC_CHECK_OR_ENOSYS(mlibc::sys_getloadavg, -1);
+	if (nsample < 0) {
+		errno = EINVAL;
+		return -1;
+	}
+	if (nsample > 3) {
+		nsample = 3;
+	}
+	double s[3];
+	if (int e = sysdep(s); e) {
+		errno = e;
+		return -1;
+	}
+	for (int i = 0; i < nsample; i++) {
+		samples[i] = s[i];
+	}
+	return nsample;
+}

user/include/mlibc/options/bsd/generic/ether.cpp

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <bits/ensure.h>
+#include <netinet/ether.h>
+
+char *ether_ntoa(const struct ether_addr *addr) {
+	static char x[18];
+	return ether_ntoa_r (addr, x);
+}
+
+char *ether_ntoa_r(const struct ether_addr *addr, char *buf) {
+	char *orig_ptr = buf;
+
+	for(int i = 0; i < ETH_ALEN; i++) {
+		buf += sprintf(buf, i == 0 ? "%.2X" : ":%.2X", addr->ether_addr_octet[i]);
+	}
+
+	return orig_ptr;
+}
+
+struct ether_addr *ether_aton(const char *) {
+	__ensure(!"Not implemented");
+	__builtin_unreachable();
+}

user/include/mlibc/options/bsd/generic/getopt.cpp

@@ -0,0 +1,8 @@
+#include <getopt.h>
+
+#if __MLIBC_GLIBC_OPTION
+
+int __optreset = 0;
+extern int optreset __attribute__((__weak__, __alias__("__optreset")));
+
+#endif //__MLIBC_GLIBC_OPTION

user/include/mlibc/options/bsd/generic/pty.cpp

@@ -0,0 +1,110 @@
+
+#include <bits/ensure.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pty.h>
+#include <utmp.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <mlibc/debug.hpp>
+#include <mlibc/posix-sysdeps.hpp>
+#include <mlibc/bsd-sysdeps.hpp>
+
+int openpty(int *mfd, int *sfd, char *name, const struct termios *ios, const struct winsize *win) {
+	if(mlibc::sys_openpty) {
+		if(int e = mlibc::sys_openpty(mfd, sfd, name, ios, win); e) {
+			errno = e;
+			return -1;
+		}
+		return 0;
+	}
+
+	int ptmx_fd;
+	if(int e = mlibc::sys_open("/dev/ptmx", O_RDWR | O_NOCTTY, 0, &ptmx_fd); e) {
+		errno = e;
+		goto fail;
+	}
+
+	char spath[32];
+	if(!name)
+		name = spath;
+	if(ptsname_r(ptmx_fd, name, 32))
+		goto fail;
+
+	int pts_fd;
+	unlockpt(ptmx_fd);
+	if(int e = mlibc::sys_open(name, O_RDWR | O_NOCTTY, 0, &pts_fd); e) {
+		errno = e;
+		goto fail;
+	}
+
+	if(ios)
+		tcsetattr(ptmx_fd, TCSAFLUSH, ios);
+
+	if(win)
+		ioctl(ptmx_fd, TIOCSWINSZ, (void*)win);
+
+	*mfd = ptmx_fd;
+	*sfd = pts_fd;
+	return 0;
+
+fail:
+	mlibc::sys_close(ptmx_fd);
+	return -1;
+}
+
+int login_tty(int fd) {
+	if(setsid() == -1)
+		return -1;
+	if(ioctl(fd, TIOCSCTTY, 0))
+		return -1;
+
+	MLIBC_CHECK_OR_ENOSYS(mlibc::sys_dup2, -1);
+	if(int e = mlibc::sys_dup2(fd, 0, STDIN_FILENO); e) {
+		errno = e;
+		return -1;
+	}
+	if(int e = mlibc::sys_dup2(fd, 0, STDOUT_FILENO); e) {
+		errno = e;
+		return -1;
+	}
+	if(int e = mlibc::sys_dup2(fd, 0, STDERR_FILENO); e) {
+		errno = e;
+		return -1;
+	}
+
+	if(int e = mlibc::sys_close(fd); e) {
+		errno = e;
+		return -1;
+	}
+	return 0;
+}
+
+int forkpty(int *mfd, char *name, const struct termios *ios, const struct winsize *win) {
+	int sfd;
+	if(openpty(mfd, &sfd, name, ios, win))
+		return -1;
+
+	pid_t child;
+	MLIBC_CHECK_OR_ENOSYS(mlibc::sys_fork, -1);
+	if(int e = mlibc::sys_fork(&child); e) {
+		errno = e;
+		return -1;
+	}
+
+	if(!child) {
+		if(login_tty(sfd))
+			mlibc::panicLogger() << "mlibc: TTY login fail in forkpty() child" << frg::endlog;
+	}else{
+		if(int e = mlibc::sys_close(sfd); e) {
+			errno = e;
+			return -1;
+		}
+	}
+
+	return child;
+}
+

user/include/mlibc/options/bsd/include/arpa/nameser.h

@@ -0,0 +1,266 @@
+#ifndef _ARPA_NAMESER_H
+#define _ARPA_NAMESER_H
+
+#include <stdint.h>
+#include <bits/size_t.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NS_PACKETSZ 512
+#define NS_MAXDNAME 1025
+#define NS_MAXLABEL 63
+
+typedef	enum __ns_rcode {
+	ns_r_noerror = 0,
+	ns_r_formerr = 1,
+	ns_r_servfail = 2,
+	ns_r_nxdomain = 3,
+	ns_r_notimpl = 4,
+	ns_r_refused = 5,
+	ns_r_yxdomain = 6,
+	ns_r_yxrrset = 7,
+	ns_r_nxrrset = 8,
+	ns_r_notauth = 9,
+	ns_r_notzone = 10,
+	ns_r_max = 11,
+	ns_r_badvers = 16,
+	ns_r_badsig = 16,
+	ns_r_badkey = 17,
+	ns_r_badtime = 18
+} ns_rcode;
+
+typedef enum __ns_type {
+	ns_t_invalid = 0,
+	ns_t_a = 1,
+	ns_t_ns = 2,
+	ns_t_md = 3,
+	ns_t_mf = 4,
+	ns_t_cname = 5,
+	ns_t_soa = 6,
+	ns_t_mb = 7,
+	ns_t_mg = 8,
+	ns_t_mr = 9,
+	ns_t_null = 10,
+	ns_t_wks = 11,
+	ns_t_ptr = 12,
+	ns_t_hinfo = 13,
+	ns_t_minfo = 14,
+	ns_t_mx = 15,
+	ns_t_txt = 16,
+	ns_t_rp = 17,
+	ns_t_afsdb = 18,
+	ns_t_x25 = 19,
+	ns_t_isdn = 20,
+	ns_t_rt = 21,
+	ns_t_nsap = 22,
+	ns_t_nsap_ptr = 23,
+	ns_t_sig = 24,
+	ns_t_key = 25,
+	ns_t_px = 26,
+	ns_t_gpos = 27,
+	ns_t_aaaa = 28,
+	ns_t_loc = 29,
+	ns_t_nxt = 30,
+	ns_t_eid = 31,
+	ns_t_nimloc = 32,
+	ns_t_srv = 33,
+	ns_t_atma = 34,
+	ns_t_naptr = 35,
+	ns_t_kx = 36,
+	ns_t_cert = 37,
+	ns_t_a6 = 38,
+	ns_t_dname = 39,
+	ns_t_sink = 40,
+	ns_t_opt = 41,
+	ns_t_apl = 42,
+	ns_t_tkey = 249,
+	ns_t_tsig = 250,
+	ns_t_ixfr = 251,
+	ns_t_axfr = 252,
+	ns_t_mailb = 253,
+	ns_t_maila = 254,
+	ns_t_any = 255,
+	ns_t_zxfr = 256,
+	ns_t_max = 65536
+} ns_type;
+
+typedef enum __ns_class {
+	ns_c_invalid = 0,
+	ns_c_in = 1,
+	ns_c_2 = 2,
+	ns_c_chaos = 3,
+	ns_c_hs = 4,
+	ns_c_none = 254,
+	ns_c_any = 255,
+	ns_c_max = 65536
+} ns_class;
+
+typedef enum __ns_sect {
+	ns_s_qd = 0,
+	ns_s_zn = 0,
+	ns_s_an = 1,
+	ns_s_pr = 1,
+	ns_s_ns = 2,
+	ns_s_ud = 2,
+	ns_s_ar = 3,
+	ns_s_max = 4
+} ns_sect;
+
+typedef struct __ns_msg {
+	const unsigned char	*_msg, *_eom;
+	uint16_t _id, _flags, _counts[ns_s_max];
+	const unsigned char	*_sections[ns_s_max];
+	ns_sect _sect;
+	int _rrnum;
+	const unsigned char	*_msg_ptr;
+} ns_msg;
+
+#define ns_msg_id(handle) ((handle)._id + 0)
+#define ns_msg_base(handle) ((handle)._msg + 0)
+#define ns_msg_end(handle) ((handle)._eom + 0)
+#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
+#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
+
+typedef	struct __ns_rr {
+	char name[NS_MAXDNAME];
+	uint16_t type;
+	uint16_t rr_class;
+	uint32_t ttl;
+	uint16_t rdlength;
+	const unsigned char *rdata;
+} ns_rr;
+
+#define ns_rr_name(rr)	(((rr).name[0] != '\0') ? (rr).name : ".")
+#define ns_rr_type(rr)	((ns_type)((rr).type + 0))
+#define ns_rr_class(rr)	((ns_class)((rr).rr_class + 0))
+#define ns_rr_ttl(rr)	((rr).ttl + 0)
+#define ns_rr_rdlen(rr)	((rr).rdlength + 0)
+#define ns_rr_rdata(rr)	((rr).rdata + 0)
+
+#ifndef __MLIBC_ABI_ONLY
+
+#define NS_GET16(s, cp) (void)((s) = ns_get16(((cp) += 2) - 2))
+#define NS_GET32(l, cp) (void)((l) = ns_get32(((cp) += 4) - 4))
+#define NS_PUT16(s, cp) ns_put16((s), ((cp) += 2) - 2)
+#define NS_PUT32(l, cp) ns_put32((l), ((cp) += 4) - 4)
+
+unsigned ns_get16(const unsigned char *__src);
+unsigned long ns_get32(const unsigned char *__src);
+void ns_put16(unsigned int __value, unsigned char *__src);
+void ns_put32(unsigned long __value, unsigned char *__src);
+
+int ns_initparse(const unsigned char *__msg, int __msglen, ns_msg *__handle);
+int ns_parserr(ns_msg *__msg, ns_sect __section, int __rrnum, ns_rr *__rr);
+int ns_name_uncompress(const unsigned char *__msg, const unsigned char *__eom,
+				    const unsigned char *__src, char *__dst, size_t __dstsize);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+typedef struct {
+	unsigned	id :16;
+#if __BYTE_ORDER == __BIG_ENDIAN
+	unsigned	qr: 1;
+	unsigned	opcode: 4;
+	unsigned	aa: 1;
+	unsigned	tc: 1;
+	unsigned	rd: 1;
+	unsigned	ra: 1;
+	unsigned	unused :1;
+	unsigned	ad: 1;
+	unsigned	cd: 1;
+	unsigned	rcode :4;
+#else
+	unsigned	rd :1;
+	unsigned	tc :1;
+	unsigned	aa :1;
+	unsigned	opcode :4;
+	unsigned	qr :1;
+	unsigned	rcode :4;
+	unsigned	cd: 1;
+	unsigned	ad: 1;
+	unsigned	unused :1;
+	unsigned	ra :1;
+#endif
+	unsigned	qdcount :16;
+	unsigned	ancount :16;
+	unsigned	nscount :16;
+	unsigned	arcount :16;
+} HEADER;
+
+#define PACKETSZ	NS_PACKETSZ
+#define MAXDNAME	NS_MAXDNAME
+
+#define NOERROR		ns_r_noerror
+#define FORMERR		ns_r_formerr
+#define SERVFAIL	ns_r_servfail
+#define NXDOMAIN	ns_r_nxdomain
+#define NOTIMP		ns_r_notimpl
+#define REFUSED		ns_r_refused
+#define YXDOMAIN	ns_r_yxdomain
+#define YXRRSET		ns_r_yxrrset
+#define NXRRSET		ns_r_nxrrset
+#define NOTAUTH		ns_r_notauth
+#define NOTZONE		ns_r_notzone
+
+#define T_A			ns_t_a
+#define T_NS		ns_t_ns
+#define T_MD		ns_t_md
+#define T_MF		ns_t_mf
+#define T_CNAME		ns_t_cname
+#define T_SOA		ns_t_soa
+#define T_MB		ns_t_mb
+#define T_MG		ns_t_mg
+#define T_MR		ns_t_mr
+#define T_NULL		ns_t_null
+#define T_WKS		ns_t_wks
+#define T_PTR		ns_t_ptr
+#define T_HINFO		ns_t_hinfo
+#define T_MINFO		ns_t_minfo
+#define T_MX		ns_t_mx
+#define T_TXT		ns_t_txt
+#define	T_RP		ns_t_rp
+#define T_AFSDB		ns_t_afsdb
+#define T_X25		ns_t_x25
+#define T_ISDN		ns_t_isdn
+#define T_RT		ns_t_rt
+#define T_NSAP		ns_t_nsap
+#define T_NSAP_PTR	ns_t_nsap_ptr
+#define	T_SIG		ns_t_sig
+#define	T_KEY		ns_t_key
+#define	T_PX		ns_t_px
+#define	T_GPOS		ns_t_gpos
+#define	T_AAAA		ns_t_aaaa
+#define	T_LOC		ns_t_loc
+#define	T_NXT		ns_t_nxt
+#define	T_EID		ns_t_eid
+#define	T_NIMLOC	ns_t_nimloc
+#define	T_SRV		ns_t_srv
+#define T_ATMA		ns_t_atma
+#define T_NAPTR		ns_t_naptr
+#define T_A6		ns_t_a6
+#define T_DNAME		ns_t_dname
+#define	T_TSIG		ns_t_tsig
+#define	T_IXFR		ns_t_ixfr
+#define T_AXFR		ns_t_axfr
+#define T_MAILB		ns_t_mailb
+#define T_MAILA		ns_t_maila
+#define T_ANY		ns_t_any
+
+#define C_IN		ns_c_in
+#define C_CHAOS		ns_c_chaos
+#define C_HS		ns_c_hs
+#define C_NONE		ns_c_none
+#define C_ANY		ns_c_any
+
+#define	GETSHORT	NS_GET16
+#define	GETLONG		NS_GET32
+#define	PUTSHORT	NS_PUT16
+#define	PUTLONG		NS_PUT32
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ARPA_NAMESER_H */

user/include/mlibc/options/bsd/include/arpa/nameser_compat.h

@@ -0,0 +1 @@
+#include <arpa/nameser.h>

user/include/mlibc/options/bsd/include/bits/bsd/bsd_stdlib.h

@@ -0,0 +1,20 @@
+
+#ifndef MLIBC_BSD_STDLIB_H
+#define MLIBC_BSD_STDLIB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __MLIBC_ABI_ONLY
+
+int getloadavg(double *__loadavg, int __count);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MLIBC_BSD_STDLIB_H */
+

user/include/mlibc/options/bsd/include/bits/bsd/bsd_unistd.h

@@ -0,0 +1,20 @@
+#ifndef _BSD_UNISTD_H
+#define _BSD_UNISTD_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#ifndef __MLIBC_ABI_ONLY
+
+void *sbrk(intptr_t __increment);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _BSD_UNISTD_H */

user/include/mlibc/options/bsd/include/fstab.h

@@ -0,0 +1,23 @@
+#ifndef _FSTAB_H
+#define _FSTAB_H
+
+#define _PATH_FSTAB "/etc/fstab"
+#define FSTAB "/etc/fstab"
+
+#define FSTAB_RW "rw"
+#define FSTAB_RQ "rq"
+#define FSTAB_RO "ro"
+#define FSTAB_SW "sw"
+#define FSTAB_XX "xx"
+
+struct fstab {
+	char *fs_spec;
+	char *fs_file;
+	char *fs_vfstype;
+	char *fs_mntops;
+	const char *fs_type;
+	int fs_freq;
+	int fs_passno;
+};
+
+#endif /* _FSTAB_H */

user/include/mlibc/options/bsd/include/mlibc/bsd-sysdeps.hpp

@@ -0,0 +1,16 @@
+#ifndef MLIBC_BSD_SYSDEPS
+#define MLIBC_BSD_SYSDEPS
+
+#include <termios.h>
+
+namespace [[gnu::visibility("hidden")]] mlibc {
+
+[[gnu::weak]] int sys_brk(void **out);
+
+[[gnu::weak]] int sys_getloadavg(double *samples);
+
+[[gnu::weak]] int sys_openpty(int *mfd, int *sfd, char *name, const struct termios *ios, const struct winsize *win);
+
+} // namespace mlibc
+
+#endif // MLIBC_BSD_SYSDEPS

user/include/mlibc/options/bsd/include/netinet/ether.h

@@ -0,0 +1,24 @@
+#ifndef _NETINET_ETHER_H
+#define _NETINET_ETHER_H
+
+#include <bits/ether_addr.h>
+#include <netinet/if_ether.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __MLIBC_ABI_ONLY
+
+char *ether_ntoa(const struct ether_addr *__addr);
+char *ether_ntoa_r(const struct ether_addr *__p_a, char *__x);
+
+struct ether_addr *ether_aton(const char *__asc);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_NETINET_ETHER_H */

user/include/mlibc/options/bsd/include/pty.h

@@ -0,0 +1,23 @@
+
+#ifndef  _PTY_H
+#define  _PTY_H
+
+#include <termios.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __MLIBC_ABI_ONLY
+
+int openpty(int *__mfd, int *__sfd, char *__name, const struct termios *__ios, const struct winsize *__win);
+int forkpty(int *__mfd, char *__name, const struct termios *__ios, const struct winsize *__win);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PTY_H */
+

user/include/mlibc/options/bsd/include/sys/queue.h

@@ -0,0 +1,574 @@
+/*
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)queue.h	8.5 (Berkeley) 8/20/94
+ */
+
+#ifndef	_SYS_QUEUE_H_
+#define	_SYS_QUEUE_H_
+
+/*
+ * This file defines five types of data structures: singly-linked lists,
+ * lists, simple queues, tail queues, and circular queues.
+ *
+ * A singly-linked list is headed by a single forward pointer. The
+ * elements are singly linked for minimum space and pointer manipulation
+ * overhead at the expense of O(n) removal for arbitrary elements. New
+ * elements can be added to the list after an existing element or at the
+ * head of the list.  Elements being removed from the head of the list
+ * should use the explicit macro for this purpose for optimum
+ * efficiency. A singly-linked list may only be traversed in the forward
+ * direction.  Singly-linked lists are ideal for applications with large
+ * datasets and few or no removals or for implementing a LIFO queue.
+ *
+ * A list is headed by a single forward pointer (or an array of forward
+ * pointers for a hash table header). The elements are doubly linked
+ * so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before
+ * or after an existing element or at the head of the list. A list
+ * may only be traversed in the forward direction.
+ *
+ * A simple queue is headed by a pair of pointers, one the head of the
+ * list and the other to the tail of the list. The elements are singly
+ * linked to save space, so elements can only be removed from the
+ * head of the list. New elements can be added to the list after
+ * an existing element, at the head of the list, or at the end of the
+ * list. A simple queue may only be traversed in the forward direction.
+ *
+ * A tail queue is headed by a pair of pointers, one to the head of the
+ * list and the other to the tail of the list. The elements are doubly
+ * linked so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before or
+ * after an existing element, at the head of the list, or at the end of
+ * the list. A tail queue may be traversed in either direction.
+ *
+ * A circle queue is headed by a pair of pointers, one to the head of the
+ * list and the other to the tail of the list. The elements are doubly
+ * linked so that an arbitrary element can be removed without a need to
+ * traverse the list. New elements can be added to the list before or after
+ * an existing element, at the head of the list, or at the end of the list.
+ * A circle queue may be traversed in either direction, but has a more
+ * complex end of list detection.
+ *
+ * For details on the use of these macros, see the queue(3) manual page.
+ */
+
+/*
+ * List definitions.
+ */
+#define	LIST_HEAD(name, type)						\
+struct name {								\
+	struct type *lh_first;	/* first element */			\
+}
+
+#define	LIST_HEAD_INITIALIZER(head)					\
+	{ NULL }
+
+#define	LIST_ENTRY(type)						\
+struct {								\
+	struct type *le_next;	/* next element */			\
+	struct type **le_prev;	/* address of previous next element */	\
+}
+
+/*
+ * List functions.
+ */
+#define	LIST_INIT(head) do {						\
+	(head)->lh_first = NULL;					\
+} while (0)
+
+#define	LIST_INSERT_AFTER(listelm, elm, field) do {			\
+	if (((elm)->field.le_next = (listelm)->field.le_next) != NULL)	\
+		(listelm)->field.le_next->field.le_prev =		\
+		    &(elm)->field.le_next;				\
+	(listelm)->field.le_next = (elm);				\
+	(elm)->field.le_prev = &(listelm)->field.le_next;		\
+} while (0)
+
+#define	LIST_INSERT_BEFORE(listelm, elm, field) do {			\
+	(elm)->field.le_prev = (listelm)->field.le_prev;		\
+	(elm)->field.le_next = (listelm);				\
+	*(listelm)->field.le_prev = (elm);				\
+	(listelm)->field.le_prev = &(elm)->field.le_next;		\
+} while (0)
+
+#define	LIST_INSERT_HEAD(head, elm, field) do {				\
+	if (((elm)->field.le_next = (head)->lh_first) != NULL)		\
+		(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
+	(head)->lh_first = (elm);					\
+	(elm)->field.le_prev = &(head)->lh_first;			\
+} while (0)
+
+#define	LIST_REMOVE(elm, field) do {					\
+	if ((elm)->field.le_next != NULL)				\
+		(elm)->field.le_next->field.le_prev = 			\
+		    (elm)->field.le_prev;				\
+	*(elm)->field.le_prev = (elm)->field.le_next;			\
+} while (0)
+
+#define	LIST_FOREACH(var, head, field)					\
+	for ((var) = ((head)->lh_first);				\
+		(var);							\
+		(var) = ((var)->field.le_next))
+
+/*
+ * List access methods.
+ */
+#define	LIST_EMPTY(head)		((head)->lh_first == NULL)
+#define	LIST_FIRST(head)		((head)->lh_first)
+#define	LIST_NEXT(elm, field)		((elm)->field.le_next)
+
+
+/*
+ * Singly-linked List definitions.
+ */
+#define	SLIST_HEAD(name, type)						\
+struct name {								\
+	struct type *slh_first;	/* first element */			\
+}
+
+#define	SLIST_HEAD_INITIALIZER(head)					\
+	{ NULL }
+
+#define	SLIST_ENTRY(type)						\
+struct {								\
+	struct type *sle_next;	/* next element */			\
+}
+
+/*
+ * Singly-linked List functions.
+ */
+#define	SLIST_INIT(head) do {						\
+	(head)->slh_first = NULL;					\
+} while (0)
+
+#define	SLIST_INSERT_AFTER(slistelm, elm, field) do {			\
+	(elm)->field.sle_next = (slistelm)->field.sle_next;		\
+	(slistelm)->field.sle_next = (elm);				\
+} while (0)
+
+#define	SLIST_INSERT_HEAD(head, elm, field) do {			\
+	(elm)->field.sle_next = (head)->slh_first;			\
+	(head)->slh_first = (elm);					\
+} while (0)
+
+#define	SLIST_REMOVE_HEAD(head, field) do {				\
+	(head)->slh_first = (head)->slh_first->field.sle_next;		\
+} while (0)
+
+#define	SLIST_REMOVE(head, elm, type, field) do {			\
+	if ((head)->slh_first == (elm)) {				\
+		SLIST_REMOVE_HEAD((head), field);			\
+	}								\
+	else {								\
+		struct type *curelm = (head)->slh_first;		\
+		while(curelm->field.sle_next != (elm))			\
+			curelm = curelm->field.sle_next;		\
+		curelm->field.sle_next =				\
+		    curelm->field.sle_next->field.sle_next;		\
+	}								\
+} while (0)
+
+#define	SLIST_FOREACH(var, head, field)					\
+	for((var) = (head)->slh_first; (var); (var) = (var)->field.sle_next)
+
+/*
+ * Singly-linked List access methods.
+ */
+#define	SLIST_EMPTY(head)	((head)->slh_first == NULL)
+#define	SLIST_FIRST(head)	((head)->slh_first)
+#define	SLIST_NEXT(elm, field)	((elm)->field.sle_next)
+
+
+/*
+ * Singly-linked Tail queue declarations.
+ */
+#define	STAILQ_HEAD(name, type)					\
+struct name {								\
+	struct type *stqh_first;	/* first element */			\
+	struct type **stqh_last;	/* addr of last next element */		\
+}
+
+#define	STAILQ_HEAD_INITIALIZER(head)					\
+	{ NULL, &(head).stqh_first }
+
+#define	STAILQ_ENTRY(type)						\
+struct {								\
+	struct type *stqe_next;	/* next element */			\
+}
+
+/*
+ * Singly-linked Tail queue functions.
+ */
+#define	STAILQ_INIT(head) do {						\
+	(head)->stqh_first = NULL;					\
+	(head)->stqh_last = &(head)->stqh_first;				\
+} while (0)
+
+#define	STAILQ_INSERT_HEAD(head, elm, field) do {			\
+	if (((elm)->field.stqe_next = (head)->stqh_first) == NULL)	\
+		(head)->stqh_last = &(elm)->field.stqe_next;		\
+	(head)->stqh_first = (elm);					\
+} while (0)
+
+#define	STAILQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.stqe_next = NULL;					\
+	*(head)->stqh_last = (elm);					\
+	(head)->stqh_last = &(elm)->field.stqe_next;			\
+} while (0)
+
+#define	STAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\
+		(head)->stqh_last = &(elm)->field.stqe_next;		\
+	(listelm)->field.stqe_next = (elm);				\
+} while (0)
+
+#define	STAILQ_REMOVE_HEAD(head, field) do {				\
+	if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == NULL) \
+		(head)->stqh_last = &(head)->stqh_first;			\
+} while (0)
+
+#define	STAILQ_REMOVE(head, elm, type, field) do {			\
+	if ((head)->stqh_first == (elm)) {				\
+		STAILQ_REMOVE_HEAD((head), field);			\
+	} else {							\
+		struct type *curelm = (head)->stqh_first;		\
+		while (curelm->field.stqe_next != (elm))			\
+			curelm = curelm->field.stqe_next;		\
+		if ((curelm->field.stqe_next =				\
+			curelm->field.stqe_next->field.stqe_next) == NULL) \
+			    (head)->stqh_last = &(curelm)->field.stqe_next; \
+	}								\
+} while (0)
+
+#define	STAILQ_FOREACH(var, head, field)				\
+	for ((var) = ((head)->stqh_first);				\
+		(var);							\
+		(var) = ((var)->field.stqe_next))
+
+#define	STAILQ_CONCAT(head1, head2) do {				\
+	if (!STAILQ_EMPTY((head2))) {					\
+		*(head1)->stqh_last = (head2)->stqh_first;		\
+		(head1)->stqh_last = (head2)->stqh_last;		\
+		STAILQ_INIT((head2));					\
+	}								\
+} while (0)
+
+/*
+ * Singly-linked Tail queue access methods.
+ */
+#define	STAILQ_EMPTY(head)	((head)->stqh_first == NULL)
+#define	STAILQ_FIRST(head)	((head)->stqh_first)
+#define	STAILQ_NEXT(elm, field)	((elm)->field.stqe_next)
+
+
+/*
+ * Simple queue definitions.
+ */
+#define	SIMPLEQ_HEAD(name, type)					\
+struct name {								\
+	struct type *sqh_first;	/* first element */			\
+	struct type **sqh_last;	/* addr of last next element */		\
+}
+
+#define	SIMPLEQ_HEAD_INITIALIZER(head)					\
+	{ NULL, &(head).sqh_first }
+
+#define	SIMPLEQ_ENTRY(type)						\
+struct {								\
+	struct type *sqe_next;	/* next element */			\
+}
+
+/*
+ * Simple queue functions.
+ */
+#define	SIMPLEQ_INIT(head) do {						\
+	(head)->sqh_first = NULL;					\
+	(head)->sqh_last = &(head)->sqh_first;				\
+} while (0)
+
+#define	SIMPLEQ_INSERT_HEAD(head, elm, field) do {			\
+	if (((elm)->field.sqe_next = (head)->sqh_first) == NULL)	\
+		(head)->sqh_last = &(elm)->field.sqe_next;		\
+	(head)->sqh_first = (elm);					\
+} while (0)
+
+#define	SIMPLEQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.sqe_next = NULL;					\
+	*(head)->sqh_last = (elm);					\
+	(head)->sqh_last = &(elm)->field.sqe_next;			\
+} while (0)
+
+#define	SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
+		(head)->sqh_last = &(elm)->field.sqe_next;		\
+	(listelm)->field.sqe_next = (elm);				\
+} while (0)
+
+#define	SIMPLEQ_REMOVE_HEAD(head, field) do {				\
+	if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
+		(head)->sqh_last = &(head)->sqh_first;			\
+} while (0)
+
+#define	SIMPLEQ_REMOVE(head, elm, type, field) do {			\
+	if ((head)->sqh_first == (elm)) {				\
+		SIMPLEQ_REMOVE_HEAD((head), field);			\
+	} else {							\
+		struct type *curelm = (head)->sqh_first;		\
+		while (curelm->field.sqe_next != (elm))			\
+			curelm = curelm->field.sqe_next;		\
+		if ((curelm->field.sqe_next =				\
+			curelm->field.sqe_next->field.sqe_next) == NULL) \
+			    (head)->sqh_last = &(curelm)->field.sqe_next; \
+	}								\
+} while (0)
+
+#define	SIMPLEQ_FOREACH(var, head, field)				\
+	for ((var) = ((head)->sqh_first);				\
+		(var);							\
+		(var) = ((var)->field.sqe_next))
+
+/*
+ * Simple queue access methods.
+ */
+#define	SIMPLEQ_EMPTY(head)		((head)->sqh_first == NULL)
+#define	SIMPLEQ_FIRST(head)		((head)->sqh_first)
+#define	SIMPLEQ_NEXT(elm, field)	((elm)->field.sqe_next)
+
+
+/*
+ * Tail queue definitions.
+ */
+#define	_TAILQ_HEAD(name, type, qual)					\
+struct name {								\
+	qual type *tqh_first;		/* first element */		\
+	qual type *qual *tqh_last;	/* addr of last next element */	\
+}
+#define TAILQ_HEAD(name, type)	_TAILQ_HEAD(name, struct type,)
+
+#define	TAILQ_HEAD_INITIALIZER(head)					\
+	{ NULL, &(head).tqh_first }
+
+#define	_TAILQ_ENTRY(type, qual)					\
+struct {								\
+	qual type *tqe_next;		/* next element */		\
+	qual type *qual *tqe_prev;	/* address of previous next element */\
+}
+#define TAILQ_ENTRY(type)	_TAILQ_ENTRY(struct type,)
+
+/*
+ * Tail queue functions.
+ */
+#define	TAILQ_INIT(head) do {						\
+	(head)->tqh_first = NULL;					\
+	(head)->tqh_last = &(head)->tqh_first;				\
+} while (0)
+
+#define	TAILQ_INSERT_HEAD(head, elm, field) do {			\
+	if (((elm)->field.tqe_next = (head)->tqh_first) != NULL)	\
+		(head)->tqh_first->field.tqe_prev =			\
+		    &(elm)->field.tqe_next;				\
+	else								\
+		(head)->tqh_last = &(elm)->field.tqe_next;		\
+	(head)->tqh_first = (elm);					\
+	(elm)->field.tqe_prev = &(head)->tqh_first;			\
+} while (0)
+
+#define	TAILQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.tqe_next = NULL;					\
+	(elm)->field.tqe_prev = (head)->tqh_last;			\
+	*(head)->tqh_last = (elm);					\
+	(head)->tqh_last = &(elm)->field.tqe_next;			\
+} while (0)
+
+#define	TAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
+		(elm)->field.tqe_next->field.tqe_prev = 		\
+		    &(elm)->field.tqe_next;				\
+	else								\
+		(head)->tqh_last = &(elm)->field.tqe_next;		\
+	(listelm)->field.tqe_next = (elm);				\
+	(elm)->field.tqe_prev = &(listelm)->field.tqe_next;		\
+} while (0)
+
+#define	TAILQ_INSERT_BEFORE(listelm, elm, field) do {			\
+	(elm)->field.tqe_prev = (listelm)->field.tqe_prev;		\
+	(elm)->field.tqe_next = (listelm);				\
+	*(listelm)->field.tqe_prev = (elm);				\
+	(listelm)->field.tqe_prev = &(elm)->field.tqe_next;		\
+} while (0)
+
+#define	TAILQ_REMOVE(head, elm, field) do {				\
+	if (((elm)->field.tqe_next) != NULL)				\
+		(elm)->field.tqe_next->field.tqe_prev = 		\
+		    (elm)->field.tqe_prev;				\
+	else								\
+		(head)->tqh_last = (elm)->field.tqe_prev;		\
+	*(elm)->field.tqe_prev = (elm)->field.tqe_next;			\
+} while (0)
+
+#define	TAILQ_FOREACH(var, head, field)					\
+	for ((var) = ((head)->tqh_first);				\
+		(var);							\
+		(var) = ((var)->field.tqe_next))
+
+#define	TAILQ_FOREACH_REVERSE(var, head, headname, field)		\
+	for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last));	\
+		(var);							\
+		(var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
+
+#define	TAILQ_CONCAT(head1, head2, field) do {				\
+	if (!TAILQ_EMPTY(head2)) {					\
+		*(head1)->tqh_last = (head2)->tqh_first;		\
+		(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last;	\
+		(head1)->tqh_last = (head2)->tqh_last;			\
+		TAILQ_INIT((head2));					\
+	}								\
+} while (0)
+
+/*
+ * Tail queue access methods.
+ */
+#define	TAILQ_EMPTY(head)		((head)->tqh_first == NULL)
+#define	TAILQ_FIRST(head)		((head)->tqh_first)
+#define	TAILQ_NEXT(elm, field)		((elm)->field.tqe_next)
+
+#define	TAILQ_LAST(head, headname) \
+	(*(((struct headname *)((head)->tqh_last))->tqh_last))
+#define	TAILQ_PREV(elm, headname, field) \
+	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
+
+
+/*
+ * Circular queue definitions.
+ */
+#define	CIRCLEQ_HEAD(name, type)					\
+struct name {								\
+	struct type *cqh_first;		/* first element */		\
+	struct type *cqh_last;		/* last element */		\
+}
+
+#define	CIRCLEQ_HEAD_INITIALIZER(head)					\
+	{ (void *)&head, (void *)&head }
+
+#define	CIRCLEQ_ENTRY(type)						\
+struct {								\
+	struct type *cqe_next;		/* next element */		\
+	struct type *cqe_prev;		/* previous element */		\
+}
+
+/*
+ * Circular queue functions.
+ */
+#define	CIRCLEQ_INIT(head) do {						\
+	(head)->cqh_first = (void *)(head);				\
+	(head)->cqh_last = (void *)(head);				\
+} while (0)
+
+#define	CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+	(elm)->field.cqe_next = (listelm)->field.cqe_next;		\
+	(elm)->field.cqe_prev = (listelm);				\
+	if ((listelm)->field.cqe_next == (void *)(head))		\
+		(head)->cqh_last = (elm);				\
+	else								\
+		(listelm)->field.cqe_next->field.cqe_prev = (elm);	\
+	(listelm)->field.cqe_next = (elm);				\
+} while (0)
+
+#define	CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do {		\
+	(elm)->field.cqe_next = (listelm);				\
+	(elm)->field.cqe_prev = (listelm)->field.cqe_prev;		\
+	if ((listelm)->field.cqe_prev == (void *)(head))		\
+		(head)->cqh_first = (elm);				\
+	else								\
+		(listelm)->field.cqe_prev->field.cqe_next = (elm);	\
+	(listelm)->field.cqe_prev = (elm);				\
+} while (0)
+
+#define	CIRCLEQ_INSERT_HEAD(head, elm, field) do {			\
+	(elm)->field.cqe_next = (head)->cqh_first;			\
+	(elm)->field.cqe_prev = (void *)(head);				\
+	if ((head)->cqh_last == (void *)(head))				\
+		(head)->cqh_last = (elm);				\
+	else								\
+		(head)->cqh_first->field.cqe_prev = (elm);		\
+	(head)->cqh_first = (elm);					\
+} while (0)
+
+#define	CIRCLEQ_INSERT_TAIL(head, elm, field) do {			\
+	(elm)->field.cqe_next = (void *)(head);				\
+	(elm)->field.cqe_prev = (head)->cqh_last;			\
+	if ((head)->cqh_first == (void *)(head))			\
+		(head)->cqh_first = (elm);				\
+	else								\
+		(head)->cqh_last->field.cqe_next = (elm);		\
+	(head)->cqh_last = (elm);					\
+} while (0)
+
+#define	CIRCLEQ_REMOVE(head, elm, field) do {				\
+	if ((elm)->field.cqe_next == (void *)(head))			\
+		(head)->cqh_last = (elm)->field.cqe_prev;		\
+	else								\
+		(elm)->field.cqe_next->field.cqe_prev =			\
+		    (elm)->field.cqe_prev;				\
+	if ((elm)->field.cqe_prev == (void *)(head))			\
+		(head)->cqh_first = (elm)->field.cqe_next;		\
+	else								\
+		(elm)->field.cqe_prev->field.cqe_next =			\
+		    (elm)->field.cqe_next;				\
+} while (0)
+
+#define	CIRCLEQ_FOREACH(var, head, field)				\
+	for ((var) = ((head)->cqh_first);				\
+		(var) != (const void *)(head);				\
+		(var) = ((var)->field.cqe_next))
+
+#define	CIRCLEQ_FOREACH_REVERSE(var, head, field)			\
+	for ((var) = ((head)->cqh_last);				\
+		(var) != (const void *)(head);				\
+		(var) = ((var)->field.cqe_prev))
+
+/*
+ * Circular queue access methods.
+ */
+#define	CIRCLEQ_EMPTY(head)		((head)->cqh_first == (void *)(head))
+#define	CIRCLEQ_FIRST(head)		((head)->cqh_first)
+#define	CIRCLEQ_LAST(head)		((head)->cqh_last)
+#define	CIRCLEQ_NEXT(elm, field)	((elm)->field.cqe_next)
+#define	CIRCLEQ_PREV(elm, field)	((elm)->field.cqe_prev)
+
+#define CIRCLEQ_LOOP_NEXT(head, elm, field)				\
+	(((elm)->field.cqe_next == (void *)(head))			\
+	    ? ((head)->cqh_first)					\
+	    : (elm->field.cqe_next))
+#define CIRCLEQ_LOOP_PREV(head, elm, field)				\
+	(((elm)->field.cqe_prev == (void *)(head))			\
+	    ? ((head)->cqh_last)					\
+	    : (elm->field.cqe_prev))
+
+#endif /* _SYS_QUEUE_H_ */

user/include/mlibc/options/bsd/include/utmp.h

@@ -0,0 +1,24 @@
+#ifndef  _UTMP_H
+#define  _UTMP_H
+
+#include <mlibc-config.h>
+
+#if __MLIBC_LINUX_OPTION
+#   include <bits/linux/linux_utmp.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef __MLIBC_ABI_ONLY
+
+int login_tty(int __fd);
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _UTMP_H */

user/include/mlibc/options/bsd/meson.build

@@ -0,0 +1,37 @@
+if not bsd_option
+	subdir_done()
+endif
+
+libc_sources += files(
+	'generic/arpa-nameser.cpp',
+	'generic/ether.cpp',
+	'generic/getopt.cpp',
+	'generic/bsd_stdlib.cpp',
+	'generic/pty.cpp',
+)
+
+if not no_headers
+	install_headers(
+		'include/fstab.h',
+		'include/pty.h',
+		'include/utmp.h',
+	)
+	install_headers(
+		'include/arpa/nameser.h',
+		'include/arpa/nameser_compat.h',
+		subdir: 'arpa'
+	)
+	install_headers(
+		'include/sys/queue.h',
+		subdir: 'sys'
+	)
+	install_headers(
+		'include/netinet/ether.h',
+		subdir: 'netinet'
+	)
+	install_headers(
+		'include/bits/bsd/bsd_stdlib.h',
+		'include/bits/bsd/bsd_unistd.h',
+		subdir: 'bits/bsd'
+	)
+endif