Add dependencies/vendor (whatsapp)

1 files changed, 994 insertions, 0 deletions

diff --git a/vendor/modernc.org/libc/libc_unix.go b/vendor/modernc.org/libc/libc_unix.go
new file mode 100644
index 00000000..eb31f1d3
--- /dev/null
+++ b/vendor/modernc.org/libc/libc_unix.go
@@ -0,0 +1,994 @@
+// Copyright 2020 The Libc Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux || darwin || freebsd || netbsd || openbsd
+// +build linux darwin freebsd netbsd openbsd
+
+package libc // import "modernc.org/libc"
+
+import (
+	"bufio"
+	"io/ioutil"
+	"math"
+	"math/rand"
+	"os"
+	gosignal "os/signal"
+	"reflect"
+	"strconv"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+	"unsafe"
+
+	guuid "github.com/google/uuid"
+	"golang.org/x/sys/unix"
+	"modernc.org/libc/errno"
+	"modernc.org/libc/grp"
+	"modernc.org/libc/poll"
+	"modernc.org/libc/pwd"
+	"modernc.org/libc/signal"
+	"modernc.org/libc/stdio"
+	"modernc.org/libc/stdlib"
+	"modernc.org/libc/sys/types"
+	ctime "modernc.org/libc/time"
+)
+
+var staticGetpwnam pwd.Passwd
+
+func init() {
+	atExit = append(atExit, func() { closePasswd(&staticGetpwnam) })
+}
+
+// sighandler_t signal(int signum, sighandler_t handler);
+func Xsignal(t *TLS, signum int32, handler uintptr) uintptr { //TODO use sigaction?
+	signalsMu.Lock()
+
+	defer signalsMu.Unlock()
+
+	r := signals[signum]
+	signals[signum] = handler
+	switch handler {
+	case signal.SIG_DFL:
+		panic(todo("%v %#x", syscall.Signal(signum), handler))
+	case signal.SIG_IGN:
+		switch r {
+		case signal.SIG_DFL:
+			gosignal.Ignore(syscall.Signal(signum)) //TODO
+		case signal.SIG_IGN:
+			gosignal.Ignore(syscall.Signal(signum))
+		default:
+			panic(todo("%v %#x", syscall.Signal(signum), handler))
+		}
+	default:
+		switch r {
+		case signal.SIG_DFL:
+			c := make(chan os.Signal, 1)
+			gosignal.Notify(c, syscall.Signal(signum))
+			go func() { //TODO mechanism to stop/cancel
+				for {
+					<-c
+					var f func(*TLS, int32)
+					*(*uintptr)(unsafe.Pointer(&f)) = handler
+					tls := NewTLS()
+					f(tls, signum)
+					tls.Close()
+				}
+			}()
+		case signal.SIG_IGN:
+			panic(todo("%v %#x", syscall.Signal(signum), handler))
+		default:
+			panic(todo("%v %#x", syscall.Signal(signum), handler))
+		}
+	}
+	return r
+}
+
+// void rewind(FILE *stream);
+func Xrewind(t *TLS, stream uintptr) {
+	Xfseek(t, stream, 0, stdio.SEEK_SET)
+}
+
+// int putchar(int c);
+func Xputchar(t *TLS, c int32) int32 {
+	if _, err := write([]byte{byte(c)}); err != nil {
+		return stdio.EOF
+	}
+
+	return int32(c)
+}
+
+// int gethostname(char *name, size_t len);
+func Xgethostname(t *TLS, name uintptr, slen types.Size_t) int32 {
+	if slen < 0 {
+		t.setErrno(errno.EINVAL)
+		return -1
+	}
+
+	if slen == 0 {
+		return 0
+	}
+
+	s, err := os.Hostname()
+	if err != nil {
+		panic(todo(""))
+	}
+
+	n := len(s)
+	if len(s) >= int(slen) {
+		n = int(slen) - 1
+	}
+	sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
+	copy((*RawMem)(unsafe.Pointer(name))[:n:n], (*RawMem)(unsafe.Pointer(sh.Data))[:n:n])
+	*(*byte)(unsafe.Pointer(name + uintptr(n))) = 0
+	return 0
+}
+
+// int remove(const char *pathname);
+func Xremove(t *TLS, pathname uintptr) int32 {
+	panic(todo(""))
+}
+
+// long pathconf(const char *path, int name);
+func Xpathconf(t *TLS, path uintptr, name int32) long {
+	panic(todo(""))
+}
+
+// ssize_t recvfrom(int sockfd, void *buf, size_t len, int flags, struct sockaddr *src_addr, socklen_t *addrlen);
+func Xrecvfrom(t *TLS, sockfd int32, buf uintptr, len types.Size_t, flags int32, src_addr, addrlen uintptr) types.Ssize_t {
+	panic(todo(""))
+}
+
+// ssize_t sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen);
+func Xsendto(t *TLS, sockfd int32, buf uintptr, len types.Size_t, flags int32, src_addr uintptr, addrlen socklen_t) types.Ssize_t {
+	panic(todo(""))
+}
+
+// void srand48(long int seedval);
+func Xsrand48(t *TLS, seedval long) {
+	panic(todo(""))
+}
+
+// long int lrand48(void);
+func Xlrand48(t *TLS) long {
+	panic(todo(""))
+}
+
+// ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags);
+func Xsendmsg(t *TLS, sockfd int32, msg uintptr, flags int32) types.Ssize_t {
+	panic(todo(""))
+}
+
+// int poll(struct pollfd *fds, nfds_t nfds, int timeout);
+func Xpoll(t *TLS, fds uintptr, nfds poll.Nfds_t, timeout int32) int32 {
+	if nfds == 0 {
+		panic(todo(""))
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %#x %v %v, %+v", origin(1), fds, nfds, timeout, (*[1000]unix.PollFd)(unsafe.Pointer(fds))[:nfds:nfds])
+	// }
+	n, err := unix.Poll((*[1000]unix.PollFd)(unsafe.Pointer(fds))[:nfds:nfds], int(timeout))
+	// if dmesgs {
+	// 	dmesg("%v: %v %v", origin(1), n, err)
+	// }
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags);
+func Xrecvmsg(t *TLS, sockfd int32, msg uintptr, flags int32) types.Ssize_t {
+	n, _, err := unix.Syscall(unix.SYS_RECVMSG, uintptr(sockfd), msg, uintptr(flags))
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return types.Ssize_t(n)
+}
+
+// struct cmsghdr *CMSG_NXTHDR(struct msghdr *msgh, struct cmsghdr *cmsg);
+func X__cmsg_nxthdr(t *TLS, msgh, cmsg uintptr) uintptr {
+	panic(todo(""))
+}
+
+// wchar_t *wcschr(const wchar_t *wcs, wchar_t wc);
+func Xwcschr(t *TLS, wcs uintptr, wc wchar_t) wchar_t {
+	panic(todo(""))
+}
+
+// gid_t getegid(void);
+func Xgetegid(t *TLS) types.Gid_t {
+	panic(todo(""))
+}
+
+// gid_t getgid(void);
+func Xgetgid(t *TLS) types.Gid_t {
+	panic(todo(""))
+}
+
+// void *shmat(int shmid, const void *shmaddr, int shmflg);
+func Xshmat(t *TLS, shmid int32, shmaddr uintptr, shmflg int32) uintptr {
+	panic(todo(""))
+}
+
+// int shmctl(int shmid, int cmd, struct shmid_ds *buf);
+func Xshmctl(t *TLS, shmid, cmd int32, buf uintptr) int32 {
+	panic(todo(""))
+}
+
+// int shmdt(const void *shmaddr);
+func Xshmdt(t *TLS, shmaddr uintptr) int32 {
+	panic(todo(""))
+}
+
+// int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
+func Xgetresuid(t *TLS, ruid, euid, suid uintptr) int32 {
+	panic(todo(""))
+}
+
+// int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
+func Xgetresgid(t *TLS, rgid, egid, sgid uintptr) int32 {
+	panic(todo(""))
+}
+
+// FILE *tmpfile(void);
+func Xtmpfile(t *TLS) uintptr {
+	f, err := ioutil.TempFile("", "tmpfile-")
+	if err != nil {
+		t.setErrno(err)
+		return 0
+	}
+
+	cf := newFile(t, int32(f.Fd()))
+	AtExit(func() {
+		nm := f.Name()
+		file(cf).close(t)
+		os.Remove(nm)
+	})
+
+	return cf
+}
+
+// FILE *fdopen(int fd, const char *mode);
+func Xfdopen(t *TLS, fd int32, mode uintptr) uintptr {
+	m := strings.ReplaceAll(GoString(mode), "b", "")
+	switch m {
+	case
+		"a",
+		"a+",
+		"r",
+		"r+",
+		"w",
+		"w+":
+	default:
+		t.setErrno(errno.EINVAL)
+		return 0
+	}
+
+	if p := newFile(t, fd); p != 0 {
+		return p
+	}
+
+	t.setErrno(errno.EINVAL)
+	return 0
+}
+
+// struct passwd *getpwnam(const char *name);
+func Xgetpwnam(t *TLS, name uintptr) uintptr {
+	f, err := os.Open("/etc/passwd")
+	if err != nil {
+		panic(todo("", err))
+	}
+
+	defer f.Close()
+
+	sname := GoString(name)
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if s == "" || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:0:root:/root:/bin/bash"
+		a := strings.Split(s, ":")
+		if len(a) < 7 {
+			panic(todo(""))
+		}
+
+		if a[0] == sname {
+			uid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gid, err := strconv.Atoi(a[3])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			closePasswd(&staticGetpwnam)
+			gecos := a[4]
+			if strings.Contains(gecos, ",") {
+				a := strings.Split(gecos, ",")
+				gecos = a[0]
+			}
+			initPasswd(t, &staticGetpwnam, a[0], a[1], uint32(uid), uint32(gid), gecos, a[5], a[6])
+			return uintptr(unsafe.Pointer(&staticGetpwnam))
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	return 0
+}
+
+// int getpwnam_r(char *name, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result);
+func Xgetpwnam_r(t *TLS, name, cpwd, buf uintptr, buflen types.Size_t, result uintptr) int32 {
+	f, err := os.Open("/etc/passwd")
+	if err != nil {
+		panic(todo("", err))
+	}
+
+	defer f.Close()
+
+	sname := GoString(name)
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if s == "" || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:0:root:/root:/bin/bash"
+		a := strings.Split(s, ":")
+		if len(a) < 7 {
+			panic(todo("%q", s))
+		}
+
+		if a[0] == sname {
+			uid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gid, err := strconv.Atoi(a[3])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gecos := a[4]
+			if strings.Contains(gecos, ",") {
+				a := strings.Split(gecos, ",")
+				gecos = a[0]
+			}
+			var v pwd.Passwd
+			if initPasswd2(t, buf, buflen, &v, a[0], a[1], uint32(uid), uint32(gid), gecos, a[5], a[6]) {
+				*(*pwd.Passwd)(unsafe.Pointer(cpwd)) = v
+				*(*uintptr)(unsafe.Pointer(result)) = cpwd
+				return 0
+			}
+
+			*(*uintptr)(unsafe.Pointer(result)) = 0
+			return errno.ERANGE
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	*(*uintptr)(unsafe.Pointer(result)) = 0
+	return 0
+}
+
+func init() {
+	atExit = append(atExit, func() { closeGroup(&staticGetgrgid) })
+}
+
+var staticGetgrgid grp.Group
+
+// struct group *getgrgid(gid_t gid);
+func Xgetgrgid(t *TLS, gid uint32) uintptr {
+	f, err := os.Open("/etc/group")
+	if err != nil {
+		panic(todo(""))
+	}
+
+	defer f.Close()
+
+	sid := strconv.Itoa(int(gid))
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if s == "" || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:"
+		a := strings.Split(s, ":")
+		if len(a) < 4 {
+			panic(todo("%q", s))
+		}
+
+		if a[2] == sid {
+			closeGroup(&staticGetgrgid)
+			var names []string
+			if a[3] != "" {
+				names = strings.Split(a[3], ",")
+			}
+			initGroup(t, &staticGetgrgid, a[0], a[1], gid, names)
+			return uintptr(unsafe.Pointer(&staticGetgrgid))
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	return 0
+}
+
+// int getgrgid_r(gid_t gid, struct group *grp, char *buf, size_t buflen, struct group **result);
+func Xgetgrgid_r(t *TLS, gid uint32, pGrp, buf uintptr, buflen types.Size_t, result uintptr) int32 {
+	f, err := os.Open("/etc/group")
+	if err != nil {
+		panic(todo(""))
+	}
+
+	defer f.Close()
+
+	sid := strconv.Itoa(int(gid))
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if s == "" || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:"
+		a := strings.Split(s, ":")
+		if len(a) < 4 {
+			panic(todo("%q", s))
+		}
+
+		if a[2] == sid {
+			var names []string
+			if a[3] != "" {
+				names = strings.Split(a[3], ",")
+			}
+			var x grp.Group
+			if initGroup2(buf, buflen, &x, a[0], a[1], gid, names) {
+				*(*grp.Group)(unsafe.Pointer(pGrp)) = x
+				*(*uintptr)(unsafe.Pointer(result)) = pGrp
+				return 0
+			}
+
+			*(*uintptr)(unsafe.Pointer(result)) = 0
+			return 0
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	*(*uintptr)(unsafe.Pointer(result)) = 0
+	return 0
+}
+
+func initPasswd2(t *TLS, buf uintptr, buflen types.Size_t, p *pwd.Passwd, name, pwd string, uid, gid uint32, gecos, dir, shell string) bool {
+	p.Fpw_name, buf, buflen = bufString(buf, buflen, name)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fpw_passwd, buf, buflen = bufString(buf, buflen, pwd)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fpw_uid = uid
+	p.Fpw_gid = gid
+	if buf == 0 {
+		return false
+	}
+
+	p.Fpw_gecos, buf, buflen = bufString(buf, buflen, gecos)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fpw_dir, buf, buflen = bufString(buf, buflen, dir)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fpw_shell, buf, buflen = bufString(buf, buflen, shell)
+	if buf == 0 {
+		return false
+	}
+
+	return true
+}
+
+func bufString(buf uintptr, buflen types.Size_t, s string) (uintptr, uintptr, types.Size_t) {
+	buf0 := buf
+	rq := len(s) + 1
+	if rq > int(buflen) {
+		return 0, 0, 0
+	}
+
+	copy((*RawMem)(unsafe.Pointer(buf))[:len(s):len(s)], s)
+	buf += uintptr(len(s))
+	*(*byte)(unsafe.Pointer(buf)) = 0
+	return buf0, buf + 1, buflen - types.Size_t(rq)
+}
+
+func closeGroup(p *grp.Group) {
+	Xfree(nil, p.Fgr_name)
+	Xfree(nil, p.Fgr_passwd)
+	if p := p.Fgr_mem; p != 0 {
+		for {
+			q := *(*uintptr)(unsafe.Pointer(p))
+			if q == 0 {
+				break
+			}
+
+			Xfree(nil, q)
+			p += unsafe.Sizeof(uintptr(0))
+		}
+	}
+	*p = grp.Group{}
+}
+
+func initGroup(t *TLS, p *grp.Group, name, pwd string, gid uint32, names []string) {
+	p.Fgr_name = cString(t, name)
+	p.Fgr_passwd = cString(t, pwd)
+	p.Fgr_gid = gid
+	a := Xcalloc(t, 1, types.Size_t(unsafe.Sizeof(uintptr(0)))*types.Size_t((len(names)+1)))
+	if a == 0 {
+		panic("OOM")
+	}
+
+	for p := a; len(names) != 0; p += unsafe.Sizeof(uintptr(0)) {
+		*(*uintptr)(unsafe.Pointer(p)) = cString(t, names[0])
+		names = names[1:]
+	}
+	p.Fgr_mem = a
+}
+
+func initGroup2(buf uintptr, buflen types.Size_t, p *grp.Group, name, pwd string, gid uint32, names []string) bool {
+	p.Fgr_name, buf, buflen = bufString(buf, buflen, name)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fgr_passwd, buf, buflen = bufString(buf, buflen, pwd)
+	if buf == 0 {
+		return false
+	}
+
+	p.Fgr_gid = gid
+	rq := unsafe.Sizeof(uintptr(0)) * uintptr(len(names)+1)
+	if rq > uintptr(buflen) {
+		return false
+	}
+
+	a := buf
+	buf += rq
+	for ; len(names) != 0; buf += unsafe.Sizeof(uintptr(0)) {
+		if len(names[0])+1 > int(buflen) {
+			return false
+		}
+
+		*(*uintptr)(unsafe.Pointer(buf)), buf, buflen = bufString(buf, buflen, names[0])
+		names = names[1:]
+	}
+	*(*uintptr)(unsafe.Pointer(buf)) = 0
+	p.Fgr_mem = a
+	return true
+}
+
+func init() {
+	atExit = append(atExit, func() { closeGroup(&staticGetgrgid) })
+}
+
+var staticGetpwuid pwd.Passwd
+
+func init() {
+	atExit = append(atExit, func() { closePasswd(&staticGetpwuid) })
+}
+
+func closePasswd(p *pwd.Passwd) {
+	Xfree(nil, p.Fpw_name)
+	Xfree(nil, p.Fpw_passwd)
+	Xfree(nil, p.Fpw_gecos)
+	Xfree(nil, p.Fpw_dir)
+	Xfree(nil, p.Fpw_shell)
+	*p = pwd.Passwd{}
+}
+
+var staticGetgrnam grp.Group
+
+func init() {
+	atExit = append(atExit, func() { closeGroup(&staticGetgrnam) })
+}
+
+// struct passwd *getpwuid(uid_t uid);
+func Xgetpwuid(t *TLS, uid uint32) uintptr {
+	f, err := os.Open("/etc/passwd")
+	if err != nil {
+		panic(todo("", err))
+	}
+
+	defer f.Close()
+
+	sid := strconv.Itoa(int(uid))
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if len(s) == 0 || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:0:root:/root:/bin/bash"
+		a := strings.Split(s, ":")
+		if len(a) < 7 {
+			panic(todo("%q", s))
+		}
+
+		if a[2] == sid {
+			uid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gid, err := strconv.Atoi(a[3])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			closePasswd(&staticGetpwuid)
+			gecos := a[4]
+			if strings.Contains(gecos, ",") {
+				a := strings.Split(gecos, ",")
+				gecos = a[0]
+			}
+			initPasswd(t, &staticGetpwuid, a[0], a[1], uint32(uid), uint32(gid), gecos, a[5], a[6])
+			return uintptr(unsafe.Pointer(&staticGetpwuid))
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	return 0
+}
+
+func initPasswd(t *TLS, p *pwd.Passwd, name, pwd string, uid, gid uint32, gecos, dir, shell string) {
+	p.Fpw_name = cString(t, name)
+	p.Fpw_passwd = cString(t, pwd)
+	p.Fpw_uid = uid
+	p.Fpw_gid = gid
+	p.Fpw_gecos = cString(t, gecos)
+	p.Fpw_dir = cString(t, dir)
+	p.Fpw_shell = cString(t, shell)
+}
+
+// struct group *getgrnam(const char *name);
+func Xgetgrnam(t *TLS, name uintptr) uintptr {
+	f, err := os.Open("/etc/group")
+	if err != nil {
+		panic(todo(""))
+	}
+
+	defer f.Close()
+
+	sname := GoString(name)
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if len(s) == 0 || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:"
+		a := strings.Split(s, ":")
+		if len(a) < 4 {
+			panic(todo("%q", s))
+		}
+
+		if a[0] == sname {
+			closeGroup(&staticGetgrnam)
+			gid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			var names []string
+			if a[3] != "" {
+				names = strings.Split(a[3], ",")
+			}
+			initGroup(t, &staticGetgrnam, a[0], a[1], uint32(gid), names)
+			return uintptr(unsafe.Pointer(&staticGetgrnam))
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	return 0
+}
+
+// int getgrnam_r(const char *name, struct group *grp, char *buf, size_t buflen, struct group **result);
+func Xgetgrnam_r(t *TLS, name, pGrp, buf uintptr, buflen types.Size_t, result uintptr) int32 {
+	f, err := os.Open("/etc/group")
+	if err != nil {
+		panic(todo(""))
+	}
+
+	defer f.Close()
+
+	sname := GoString(name)
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if len(s) == 0 || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:"
+		a := strings.Split(s, ":")
+		if len(a) < 4 {
+			panic(todo("%q", s))
+		}
+
+		if a[0] == sname {
+			gid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			var names []string
+			if a[3] != "" {
+				names = strings.Split(a[3], ",")
+			}
+			var x grp.Group
+			if initGroup2(buf, buflen, &x, a[0], a[1], uint32(gid), names) {
+				*(*grp.Group)(unsafe.Pointer(pGrp)) = x
+				*(*uintptr)(unsafe.Pointer(result)) = pGrp
+				return 0
+			}
+
+			*(*uintptr)(unsafe.Pointer(result)) = 0
+			return 0
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	*(*uintptr)(unsafe.Pointer(result)) = 0
+	return 0
+}
+
+// int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf, size_t buflen, struct passwd **result);
+func Xgetpwuid_r(t *TLS, uid types.Uid_t, cpwd, buf uintptr, buflen types.Size_t, result uintptr) int32 {
+	f, err := os.Open("/etc/passwd")
+	if err != nil {
+		panic(todo("", err))
+	}
+
+	defer f.Close()
+
+	sid := strconv.Itoa(int(uid))
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		s := strings.TrimSpace(sc.Text())
+		if len(s) == 0 || strings.HasPrefix(s, "#") {
+			continue
+		}
+
+		// eg. "root:x:0:0:root:/root:/bin/bash"
+		a := strings.Split(s, ":")
+		if len(a) < 7 {
+			panic(todo("%q", s))
+		}
+
+		if a[2] == sid {
+			uid, err := strconv.Atoi(a[2])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gid, err := strconv.Atoi(a[3])
+			if err != nil {
+				panic(todo(""))
+			}
+
+			gecos := a[4]
+			if strings.Contains(gecos, ",") {
+				a := strings.Split(gecos, ",")
+				gecos = a[0]
+			}
+			var v pwd.Passwd
+			if initPasswd2(t, buf, buflen, &v, a[0], a[1], uint32(uid), uint32(gid), gecos, a[5], a[6]) {
+				*(*pwd.Passwd)(unsafe.Pointer(cpwd)) = v
+				*(*uintptr)(unsafe.Pointer(result)) = cpwd
+				return 0
+			}
+
+			*(*uintptr)(unsafe.Pointer(result)) = 0
+			return errno.ERANGE
+		}
+	}
+
+	if sc.Err() != nil {
+		panic(todo(""))
+	}
+
+	*(*uintptr)(unsafe.Pointer(result)) = 0
+	return 0
+}
+
+// int mkostemp(char *template, int flags);
+func Xmkostemp(t *TLS, template uintptr, flags int32) int32 {
+	len := uintptr(Xstrlen(t, template))
+	x := template + uintptr(len-6)
+	for i := uintptr(0); i < 6; i++ {
+		if *(*byte)(unsafe.Pointer(x + i)) != 'X' {
+			t.setErrno(errno.EINVAL)
+			return -1
+		}
+	}
+
+	fd, err := tempFile(template, x, flags)
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(fd)
+}
+
+// void uuid_generate_random(uuid_t out);
+func Xuuid_generate_random(t *TLS, out uintptr) {
+	x := guuid.New()
+	copy((*RawMem)(unsafe.Pointer(out))[:], x[:])
+}
+
+// void uuid_unparse(uuid_t uu, char *out);
+func Xuuid_unparse(t *TLS, uu, out uintptr) {
+	s := (*guuid.UUID)(unsafe.Pointer(uu)).String()
+	copy((*RawMem)(unsafe.Pointer(out))[:], s)
+	*(*byte)(unsafe.Pointer(out + uintptr(len(s)))) = 0
+}
+
+var staticRandomData = &rand.Rand{}
+
+// char *initstate(unsigned seed, char *state, size_t size);
+func Xinitstate(t *TLS, seed uint32, statebuf uintptr, statelen types.Size_t) uintptr {
+	staticRandomData = rand.New(rand.NewSource(int64(seed)))
+	return 0
+}
+
+// char *setstate(const char *state);
+func Xsetstate(t *TLS, state uintptr) uintptr {
+	t.setErrno(errno.EINVAL) //TODO
+	return 0
+}
+
+// The initstate_r() function is like initstate(3) except that it initializes
+// the state in the object pointed to by buf, rather than initializing the
+// global state  variable.   Before  calling this function, the buf.state field
+// must be initialized to NULL.  The initstate_r() function records a pointer
+// to the statebuf argument inside the structure pointed to by buf.  Thus,
+// state‐ buf should not be deallocated so long as buf is still in use.  (So,
+// statebuf should typically be allocated as a static variable, or allocated on
+// the heap using malloc(3) or similar.)
+//
+// char *initstate_r(unsigned int seed, char *statebuf, size_t statelen, struct random_data *buf);
+func Xinitstate_r(t *TLS, seed uint32, statebuf uintptr, statelen types.Size_t, buf uintptr) int32 {
+	if buf == 0 {
+		panic(todo(""))
+	}
+
+	randomDataMu.Lock()
+
+	defer randomDataMu.Unlock()
+
+	randomData[buf] = rand.New(rand.NewSource(int64(seed)))
+	return 0
+}
+
+var (
+	randomData   = map[uintptr]*rand.Rand{}
+	randomDataMu sync.Mutex
+)
+
+// int mkstemps(char *template, int suffixlen);
+func Xmkstemps(t *TLS, template uintptr, suffixlen int32) int32 {
+	return Xmkstemps64(t, template, suffixlen)
+}
+
+// int mkstemps(char *template, int suffixlen);
+func Xmkstemps64(t *TLS, template uintptr, suffixlen int32) int32 {
+	len := uintptr(Xstrlen(t, template))
+	x := template + uintptr(len-6) - uintptr(suffixlen)
+	for i := uintptr(0); i < 6; i++ {
+		if *(*byte)(unsafe.Pointer(x + i)) != 'X' {
+			t.setErrno(errno.EINVAL)
+			return -1
+		}
+	}
+
+	fd, err := tempFile(template, x, 0)
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(fd)
+}
+
+// int mkstemp(char *template);
+func Xmkstemp(t *TLS, template uintptr) int32 {
+	return Xmkstemp64(t, template)
+}
+
+// int mkstemp(char *template);
+func Xmkstemp64(t *TLS, template uintptr) int32 {
+	return Xmkstemps64(t, template, 0)
+}
+
+// int random_r(struct random_data *buf, int32_t *result);
+func Xrandom_r(t *TLS, buf, result uintptr) int32 {
+	randomDataMu.Lock()
+
+	defer randomDataMu.Unlock()
+
+	mr := randomData[buf]
+	if stdlib.RAND_MAX != math.MaxInt32 {
+		panic(todo(""))
+	}
+	*(*int32)(unsafe.Pointer(result)) = mr.Int31()
+	return 0
+}
+
+// int strerror_r(int errnum, char *buf, size_t buflen);
+func Xstrerror_r(t *TLS, errnum int32, buf uintptr, buflen size_t) int32 {
+	panic(todo(""))
+}
+
+// void endpwent(void);
+func Xendpwent(t *TLS) {
+	// nop
+}
+
+var ctimeStaticBuf [32]byte
+
+// char *ctime(const time_t *timep);
+func Xctime(t *TLS, timep uintptr) uintptr {
+	return Xctime_r(t, timep, uintptr(unsafe.Pointer(&ctimeStaticBuf[0])))
+}
+
+// char *ctime_r(const time_t *timep, char *buf);
+func Xctime_r(t *TLS, timep, buf uintptr) uintptr {
+	ut := *(*ctime.Time_t)(unsafe.Pointer(timep))
+	tm := time.Unix(int64(ut), 0).Local()
+	s := tm.Format(time.ANSIC) + "\n\x00"
+	copy((*RawMem)(unsafe.Pointer(buf))[:26:26], s)
+	return buf
+}