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-rw-r--r--lib/libcompat/4.3/re_comp.3117
-rw-r--r--lib/libcompat/4.3/re_comp.c88
-rw-r--r--lib/libcompat/4.3/rexec.3128
-rw-r--r--lib/libcompat/4.3/rexec.c383
-rw-r--r--lib/libcompat/4.4/cuserid.385
-rw-r--r--lib/libcompat/4.4/cuserid.c53
-rw-r--r--lib/libcompat/Makefile22
-rw-r--r--lib/libcompat/Makefile.depend12
8 files changed, 888 insertions, 0 deletions
diff --git a/lib/libcompat/4.3/re_comp.3 b/lib/libcompat/4.3/re_comp.3
new file mode 100644
index 000000000000..504519a77459
--- /dev/null
+++ b/lib/libcompat/4.3/re_comp.3
@@ -0,0 +1,117 @@
+.\" Copyright (c) 1980, 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.
+.\"
+.Dd June 4, 1993
+.Dt RE_COMP 3
+.Os
+.Sh NAME
+.Nm re_comp ,
+.Nm re_exec
+.Nd regular expression handler
+.Sh LIBRARY
+.Lb libcompat
+.Sh SYNOPSIS
+.In unistd.h
+.Ft char *
+.Fn re_comp "const char *s"
+.Ft int
+.Fn re_exec "const char *s"
+.Sh DESCRIPTION
+.Bf -symbolic
+This interface is made obsolete by
+.Xr regex 3 .
+.Ef
+.Pp
+The
+.Fn re_comp
+function
+compiles a string into an internal form suitable for pattern matching.
+The
+.Fn re_exec
+function
+checks the argument string against the last string passed to
+.Fn re_comp .
+.Pp
+The
+.Fn re_comp
+function
+returns 0 if the string
+.Fa s
+was compiled successfully; otherwise a string containing an
+error message is returned.
+If
+.Fn re_comp
+is passed 0 or a null string, it returns without changing the currently
+compiled regular expression.
+.Pp
+The
+.Fn re_exec
+function
+returns 1 if the string
+.Fa s
+matches the last compiled regular expression, 0 if the string
+.Fa s
+failed to match the last compiled regular expression, and \-1 if the compiled
+regular expression was invalid (indicating an internal error).
+.Pp
+The strings passed to both
+.Fn re_comp
+and
+.Fn re_exec
+may have trailing or embedded newline characters;
+they are terminated by
+.Dv NUL Ns s .
+The regular expressions recognized are described in the manual entry for
+.Xr ed 1 ,
+given the above difference.
+.Sh DIAGNOSTICS
+The
+.Fn re_exec
+function
+returns \-1 for an internal error.
+.Pp
+The
+.Fn re_comp
+function
+returns
+.Dq no previous regular expression
+or one of the strings generated by
+.Xr regerror 3 .
+.Sh SEE ALSO
+.Xr ed 1 ,
+.Xr egrep 1 ,
+.Xr ex 1 ,
+.Xr fgrep 1 ,
+.Xr grep 1 ,
+.Xr regex 3
+.Sh HISTORY
+The
+.Fn re_comp
+and
+.Fn re_exec
+functions appeared in
+.Bx 4.0 .
diff --git a/lib/libcompat/4.3/re_comp.c b/lib/libcompat/4.3/re_comp.c
new file mode 100644
index 000000000000..a45f06769c57
--- /dev/null
+++ b/lib/libcompat/4.3/re_comp.c
@@ -0,0 +1,88 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * James da Silva at the University of Maryland at College Park.
+ *
+ * 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.
+ */
+
+
+/*
+ * Compatibility routines that implement the old re_comp/re_exec interface in
+ * terms of the regcomp/regexec interface. It's possible that some programs
+ * rely on dark corners of re_comp/re_exec and won't work with this version,
+ * but most programs should be fine.
+ */
+
+#include <regex.h>
+#include <stddef.h>
+#include <unistd.h>
+
+static regex_t re_regexp;
+static int re_gotexp;
+static char re_errstr[100];
+
+char *
+re_comp(const char *s)
+{
+ int rc;
+
+ if (s == NULL || *s == '\0') {
+ if (!re_gotexp)
+ return __DECONST(char *,
+ "no previous regular expression");
+ return (NULL);
+ }
+
+ if (re_gotexp) {
+ regfree(&re_regexp);
+ re_gotexp = 0;
+ }
+
+ rc = regcomp(&re_regexp, s, REG_EXTENDED);
+ if (rc == 0) {
+ re_gotexp = 1;
+ return (NULL);
+ }
+
+ regerror(rc, &re_regexp, re_errstr, sizeof(re_errstr));
+ re_errstr[sizeof(re_errstr) - 1] = '\0';
+ return (re_errstr);
+}
+
+int
+re_exec(const char *s)
+{
+ int rc;
+
+ if (!re_gotexp)
+ return (-1);
+ rc = regexec(&re_regexp, s, 0, NULL, 0);
+ return (rc == 0 ? 1 : 0);
+}
diff --git a/lib/libcompat/4.3/rexec.3 b/lib/libcompat/4.3/rexec.3
new file mode 100644
index 000000000000..165e7002ebf3
--- /dev/null
+++ b/lib/libcompat/4.3/rexec.3
@@ -0,0 +1,128 @@
+.\" Copyright (c) 1983, 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.
+.\"
+.Dd June 4, 1993
+.Dt REXEC 3
+.Os
+.Sh NAME
+.Nm rexec
+.Nd return stream to a remote command
+.Sh LIBRARY
+.Lb libcompat
+.Sh SYNOPSIS
+.Ft int
+.Fn rexec "char **ahost" "int inport" "char *user" "char *passwd" "char *cmd" "int *fd2p"
+.Sh DESCRIPTION
+.Bf -symbolic
+This interface is obsoleted by
+.Xr rcmd 3 .
+.Ef
+.Pp
+The
+.Fn rexec
+function
+looks up the host
+.Fa *ahost
+using
+.Xr gethostbyname 3 ,
+returning \-1 if the host does not exist.
+Otherwise
+.Fa *ahost
+is set to the standard name of the host.
+If a username and password are both specified, then these
+are used to authenticate to the foreign host; otherwise
+the environment and then the user's
+.Pa .netrc
+file in his
+home directory are searched for appropriate information.
+If all this fails, the user is prompted for the information.
+.Pp
+The port
+.Fa inport
+specifies which well-known
+.Tn DARPA
+Internet port to use for
+the connection; the call
+.Fn getservbyname \*qexec\*q \*qtcp\*q
+(see
+.Xr getservent 3 )
+will return a pointer to a structure, which contains the
+necessary port.
+The protocol for connection is described in detail in
+.Xr rexecd 8 .
+.Pp
+If the connection succeeds,
+a socket in the Internet domain of type
+.Dv SOCK_STREAM
+is returned to
+the caller, and given to the remote command as
+.Dv stdin
+and
+.Dv stdout .
+If
+.Fa fd2p
+is non-zero, then an auxiliary channel to a control
+process will be setup, and a descriptor for it will be placed
+in
+.Fa *fd2p .
+The control process will return diagnostic
+output from the command (unit 2) on this channel, and will also
+accept bytes on this channel as being
+.Ux
+signal numbers, to be
+forwarded to the process group of the command.
+The diagnostic
+information returned does not include remote authorization failure,
+as the secondary connection is set up after authorization has been
+verified.
+If
+.Fa fd2p
+is 0, then the
+.Dv stderr
+(unit 2 of the remote
+command) will be made the same as the
+.Dv stdout
+and no
+provision is made for sending arbitrary signals to the remote process,
+although you may be able to get its attention by using out-of-band data.
+.Sh SEE ALSO
+.Xr rcmd 3 ,
+.Xr rexecd 8
+.Sh HISTORY
+The
+.Fn rexec
+function appeared in
+.Bx 4.2 .
+.Sh BUGS
+The
+.Fn rexec
+function sends the unencrypted password across the network.
+.Pp
+The underlying service is considered a big security hole and therefore
+not enabled on many sites, see
+.Xr rexecd 8
+for explanations.
diff --git a/lib/libcompat/4.3/rexec.c b/lib/libcompat/4.3/rexec.c
new file mode 100644
index 000000000000..b2f37a09c0fb
--- /dev/null
+++ b/lib/libcompat/4.3/rexec.c
@@ -0,0 +1,383 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1980, 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.
+ */
+
+
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/socket.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <netinet/in.h>
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <netdb.h>
+#include <errno.h>
+#include <ctype.h>
+#include <err.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int rexecoptions;
+
+/*
+ * Options and other state info.
+ */
+struct macel {
+ char mac_name[9]; /* macro name */
+ char *mac_start; /* start of macro in macbuf */
+ char *mac_end; /* end of macro in macbuf */
+};
+
+int macnum; /* number of defined macros */
+struct macel macros[16];
+char macbuf[4096];
+
+static FILE *cfile;
+
+#define DEFAULT 1
+#define LOGIN 2
+#define PASSWD 3
+#define ACCOUNT 4
+#define MACDEF 5
+#define ID 10
+#define MACH 11
+
+static char tokval[100];
+
+static struct toktab {
+ char *tokstr;
+ int tval;
+} toktab[]= {
+ { "default", DEFAULT },
+ { "login", LOGIN },
+ { "password", PASSWD },
+ { "passwd", PASSWD },
+ { "account", ACCOUNT },
+ { "machine", MACH },
+ { "macdef", MACDEF },
+ { NULL, 0 }
+};
+
+static int
+token()
+{
+ char *cp;
+ int c;
+ struct toktab *t;
+
+ if (feof(cfile) || ferror(cfile))
+ return (0);
+ while ((c = getc(cfile)) != EOF &&
+ (c == '\n' || c == '\t' || c == ' ' || c == ','))
+ continue;
+ if (c == EOF)
+ return (0);
+ cp = tokval;
+ if (c == '"') {
+ while ((c = getc(cfile)) != EOF && c != '"') {
+ if (c == '\\')
+ c = getc(cfile);
+ *cp++ = c;
+ }
+ } else {
+ *cp++ = c;
+ while ((c = getc(cfile)) != EOF
+ && c != '\n' && c != '\t' && c != ' ' && c != ',') {
+ if (c == '\\')
+ c = getc(cfile);
+ *cp++ = c;
+ }
+ }
+ *cp = 0;
+ if (tokval[0] == 0)
+ return (0);
+ for (t = toktab; t->tokstr; t++)
+ if (!strcmp(t->tokstr, tokval))
+ return (t->tval);
+ return (ID);
+}
+
+static int
+ruserpass(char *host, char **aname, char **apass, char **aacct)
+{
+ char *hdir, buf[BUFSIZ], *tmp;
+ char myname[MAXHOSTNAMELEN], *mydomain;
+ int t, i, c, usedefault = 0;
+ struct stat stb;
+
+ hdir = getenv("HOME");
+ if (hdir == NULL)
+ hdir = ".";
+ if (strlen(hdir) + 8 > sizeof(buf))
+ return (0);
+ (void) sprintf(buf, "%s/.netrc", hdir);
+ cfile = fopen(buf, "r");
+ if (cfile == NULL) {
+ if (errno != ENOENT)
+ warn("%s", buf);
+ return (0);
+ }
+ if (gethostname(myname, sizeof(myname)) < 0)
+ myname[0] = '\0';
+ if ((mydomain = strchr(myname, '.')) == NULL)
+ mydomain = "";
+next:
+ while ((t = token())) switch(t) {
+
+ case DEFAULT:
+ usedefault = 1;
+ /* FALL THROUGH */
+
+ case MACH:
+ if (!usedefault) {
+ if (token() != ID)
+ continue;
+ /*
+ * Allow match either for user's input host name
+ * or official hostname. Also allow match of
+ * incompletely-specified host in local domain.
+ */
+ if (strcasecmp(host, tokval) == 0)
+ goto match;
+ if ((tmp = strchr(host, '.')) != NULL &&
+ strcasecmp(tmp, mydomain) == 0 &&
+ strncasecmp(host, tokval, tmp - host) == 0 &&
+ tokval[tmp - host] == '\0')
+ goto match;
+ continue;
+ }
+ match:
+ while ((t = token()) && t != MACH && t != DEFAULT) switch(t) {
+
+ case LOGIN:
+ if (token())
+ if (*aname == NULL) {
+ *aname = malloc((unsigned) strlen(tokval) + 1);
+ (void) strcpy(*aname, tokval);
+ } else {
+ if (strcmp(*aname, tokval))
+ goto next;
+ }
+ break;
+ case PASSWD:
+ if ((*aname == NULL || strcmp(*aname, "anonymous")) &&
+ fstat(fileno(cfile), &stb) >= 0 &&
+ (stb.st_mode & 077) != 0) {
+ warnx("Error: .netrc file is readable by others.");
+ warnx("Remove password or make file unreadable by others.");
+ goto bad;
+ }
+ if (token() && *apass == NULL) {
+ *apass = malloc((unsigned) strlen(tokval) + 1);
+ (void) strcpy(*apass, tokval);
+ }
+ break;
+ case ACCOUNT:
+ if (fstat(fileno(cfile), &stb) >= 0
+ && (stb.st_mode & 077) != 0) {
+ warnx("Error: .netrc file is readable by others.");
+ warnx("Remove account or make file unreadable by others.");
+ goto bad;
+ }
+ if (token() && *aacct == NULL) {
+ *aacct = malloc((unsigned) strlen(tokval) + 1);
+ (void) strcpy(*aacct, tokval);
+ }
+ break;
+ case MACDEF:
+ while ((c=getc(cfile)) != EOF &&
+ (c == ' ' || c == '\t'))
+ ;
+ if (c == EOF || c == '\n') {
+ printf("Missing macdef name argument.\n");
+ goto bad;
+ }
+ if (macnum == 16) {
+ printf("Limit of 16 macros have already been defined\n");
+ goto bad;
+ }
+ tmp = macros[macnum].mac_name;
+ *tmp++ = c;
+ for (i=0; i < 8 && (c=getc(cfile)) != EOF &&
+ !isspace(c); ++i) {
+ *tmp++ = c;
+ }
+ if (c == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ *tmp = '\0';
+ if (c != '\n') {
+ while ((c=getc(cfile)) != EOF && c != '\n');
+ }
+ if (c == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ if (macnum == 0) {
+ macros[macnum].mac_start = macbuf;
+ }
+ else {
+ macros[macnum].mac_start = macros[macnum-1].mac_end + 1;
+ }
+ tmp = macros[macnum].mac_start;
+ while (tmp != macbuf + 4096) {
+ if ((c=getc(cfile)) == EOF) {
+ printf("Macro definition missing null line terminator.\n");
+ goto bad;
+ }
+ *tmp = c;
+ if (*tmp == '\n') {
+ if (*(tmp-1) == '\0') {
+ macros[macnum++].mac_end = tmp - 1;
+ break;
+ }
+ *tmp = '\0';
+ }
+ tmp++;
+ }
+ if (tmp == macbuf + 4096) {
+ printf("4K macro buffer exceeded\n");
+ goto bad;
+ }
+ break;
+ default:
+ warnx("Unknown .netrc keyword %s", tokval);
+ break;
+ }
+ goto done;
+ }
+done:
+ (void) fclose(cfile);
+ return (0);
+bad:
+ (void) fclose(cfile);
+ return (-1);
+}
+
+int
+rexec(char **ahost, int rport, char *name, char *pass, char *cmd, int *fd2p)
+{
+ struct sockaddr_in sin, sin2, from;
+ struct hostent *hp;
+ u_short port;
+ int s, timo = 1, s3;
+ char c, *acct;
+
+ hp = gethostbyname(*ahost);
+ if (hp == NULL) {
+ herror(*ahost);
+ return (-1);
+ }
+ *ahost = hp->h_name;
+ acct = NULL;
+ ruserpass(hp->h_name, &name, &pass, &acct);
+ free(acct);
+retry:
+ s = socket(AF_INET, SOCK_STREAM, 0);
+ if (s < 0) {
+ perror("rexec: socket");
+ return (-1);
+ }
+ sin.sin_family = hp->h_addrtype;
+ sin.sin_port = rport;
+ bcopy(hp->h_addr, (caddr_t)&sin.sin_addr, hp->h_length);
+ if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
+ if (errno == ECONNREFUSED && timo <= 16) {
+ (void) close(s);
+ sleep(timo);
+ timo *= 2;
+ goto retry;
+ }
+ perror(hp->h_name);
+ (void) close(s);
+ return (-1);
+ }
+ port = 0;
+ if (fd2p == 0)
+ (void) write(s, "", 1);
+ else {
+ char num[8];
+ int s2, sin2len;
+
+ s2 = socket(AF_INET, SOCK_STREAM, 0);
+ if (s2 < 0) {
+ (void) close(s);
+ return (-1);
+ }
+ listen(s2, 1);
+ sin2len = sizeof (sin2);
+ if (getsockname(s2, (struct sockaddr *)&sin2, &sin2len) < 0 ||
+ sin2len != sizeof (sin2)) {
+ perror("getsockname");
+ (void) close(s2);
+ goto bad;
+ }
+ port = ntohs((u_short)sin2.sin_port);
+ (void) sprintf(num, "%hu", port);
+ (void) write(s, num, strlen(num)+1);
+ { int len = sizeof (from);
+ s3 = accept(s2, (struct sockaddr *)&from, &len);
+ close(s2);
+ if (s3 < 0) {
+ perror("accept");
+ port = 0;
+ goto bad;
+ }
+ }
+ *fd2p = s3;
+ }
+ (void) write(s, name, strlen(name) + 1);
+ /* should public key encypt the password here */
+ (void) write(s, pass, strlen(pass) + 1);
+ (void) write(s, cmd, strlen(cmd) + 1);
+ if (read(s, &c, 1) != 1) {
+ perror(*ahost);
+ goto bad;
+ }
+ if (c != 0) {
+ while (read(s, &c, 1) == 1) {
+ (void) write(2, &c, 1);
+ if (c == '\n')
+ break;
+ }
+ goto bad;
+ }
+ return (s);
+bad:
+ if (port)
+ (void) close(*fd2p);
+ (void) close(s);
+ return (-1);
+}
diff --git a/lib/libcompat/4.4/cuserid.3 b/lib/libcompat/4.4/cuserid.3
new file mode 100644
index 000000000000..f3ecff8c84e9
--- /dev/null
+++ b/lib/libcompat/4.4/cuserid.3
@@ -0,0 +1,85 @@
+.\"
+.\" Copyright (c) 1995 Joerg Wunsch
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by Joerg Wunsch
+.\" 4. The name of the developer may not be used to endorse or promote
+.\" products derived from this software without specific prior written
+.\" permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``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 DEVELOPERS 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.
+.\"
+.Dd April 10, 1995
+.Dt CUSERID 3
+.Os
+.Sh NAME
+.Nm cuserid
+.Nd get user name associated with effective UID
+.Sh LIBRARY
+.Lb libcompat
+.Sh SYNOPSIS
+.In stdio.h
+.Ft char *
+.Fn cuserid "char *s"
+.Sh DESCRIPTION
+.Bf -symbolic
+The
+.Fn cuserid
+function is made obsolete by
+.Xr getpwuid 3 .
+.Ef
+.Pp
+The function
+.Fn cuserid
+gets the user name associated with the effective UID of the current
+process.
+If the argument
+.Fa s
+is non-NULL, the name is copied to the buffer it points to,
+and that address is being returned.
+This buffer must provide space
+for at least
+.Em L_cuserid
+characters.
+The L_cuserid constant is defined in
+.In stdio.h .
+.Pp
+If
+.Fa s
+is NULL, an internal array is used and its address will be returned.
+.Sh RETURN VALUES
+The
+.Fn cuserid
+function returns the address of an array in which the name has been stored.
+.Pp
+If the name associated with the effective UID of the current process
+could not be found, either a null pointer will be returned, or
+(if
+.Fa s
+is non-NULL)
+the buffer
+.Fa s
+will be filled with a null string.
+.Sh SEE ALSO
+.Xr geteuid 2 ,
+.Xr getpwuid 3
diff --git a/lib/libcompat/4.4/cuserid.c b/lib/libcompat/4.4/cuserid.c
new file mode 100644
index 000000000000..188330927897
--- /dev/null
+++ b/lib/libcompat/4.4/cuserid.c
@@ -0,0 +1,53 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1992, 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.
+ */
+
+
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+char *
+cuserid(char *s)
+{
+ struct passwd *pwd;
+
+ if ((pwd = getpwuid(geteuid())) == NULL) {
+ if (s)
+ *s = '\0';
+ return (s);
+ }
+ if (s) {
+ (void)strncpy(s, pwd->pw_name, L_cuserid);
+ return (s);
+ }
+ return (pwd->pw_name);
+}
diff --git a/lib/libcompat/Makefile b/lib/libcompat/Makefile
new file mode 100644
index 000000000000..2612568a9da7
--- /dev/null
+++ b/lib/libcompat/Makefile
@@ -0,0 +1,22 @@
+PACKAGE=lib${LIB}
+LIB= compat
+CFLAGS+=-I${SRCTOP}/lib/libc/locale
+NO_PIC=
+
+WARNS?= 0
+
+.PATH: ${.CURDIR}/4.3 ${.CURDIR}/4.4
+
+# compat 4.3 sources
+SRCS+= re_comp.c rexec.c
+
+MAN+= 4.3/re_comp.3 4.3/rexec.3
+
+MLINKS+=re_comp.3 re_exec.3
+
+# compat 4.4 sources
+SRCS+= cuserid.c
+
+MAN+= 4.4/cuserid.3
+
+.include <bsd.lib.mk>
diff --git a/lib/libcompat/Makefile.depend b/lib/libcompat/Makefile.depend
new file mode 100644
index 000000000000..15a1f9c07f7c
--- /dev/null
+++ b/lib/libcompat/Makefile.depend
@@ -0,0 +1,12 @@
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+ include \
+ include/xlocale \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
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