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-rw-r--r--vendor/modernc.org/libc/libc_unix.go994
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
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 01:08:22 +0000