diff -up shadow-4.9/man/getsubids.1.xml.getsubids shadow-4.9/man/getsubids.1.xml

--- shadow-4.9/man/getsubids.1.xml.getsubids	2021-11-18 16:27:33.951053120 +0100

+++ shadow-4.9/man/getsubids.1.xml	2021-11-18 16:27:33.951053120 +0100

@@ -0,0 +1,141 @@

+

+

+   Copyright (c) 2021 Iker Pedrosa

+   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. The name of the copyright holders or contributors may not be used to

+      endorse or promote products derived from this software without

+      specific prior written permission.

+

+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT

+   HOLDERS 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.

+-->

+

+  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [

+

+]>

+

+<refentry id='getsubids.1'>

+  <refentryinfo>

+    <author>

+      <firstname>Iker</firstname>

+      <surname>Pedrosa</surname>

+      <contrib>Creation, 2021</contrib>

+    </author>

+  </refentryinfo>

+  <refmeta>

+    <refentrytitle>getsubids</refentrytitle>

+    <manvolnum>1</manvolnum>

+    <refmiscinfo class="sectdesc">User Commands</refmiscinfo>

+    <refmiscinfo class="source">shadow-utils</refmiscinfo>

+    <refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>

+  </refmeta>

+  <refnamediv id='name'>

+    <refname>getsubids</refname>

+    <refpurpose>get the subordinate id ranges for a user</refpurpose>

+  </refnamediv>

+

+  <refsynopsisdiv id='synopsis'>

+    <cmdsynopsis>

+      <command>getsubids</command>

+      <arg choice='opt'>

+        <replaceable>options</replaceable>

+      </arg>

+      <arg choice='plain'>

+        <replaceable>USER</replaceable>

+      </arg>

+    </cmdsynopsis>

+  </refsynopsisdiv>

+

+  <refsect1 id='description'>

+    <title>DESCRIPTION</title>

+    <para>

+      The <command>getsubids</command> command lists the subordinate user ID

+      ranges for a given user. The subordinate group IDs can be listed using

+      the <option>-g</option> option.

+    </para>

+  </refsect1>

+

+  <refsect1 id='options'>

+    <title>OPTIONS</title>

+    <para>

+      The options which apply to the <command>getsubids</command> command are:

+    </para>

+    <variablelist remap='IP'>

+      <varlistentry>

+        <term>

+          <option>-g</option>

+        </term>

+        <listitem>

+          <para>

+            List the subordinate group ID ranges.

+          </para>

+        </listitem>

+      </varlistentry>

+    </variablelist>

+  </refsect1>

+

+  <refsect1 id='example'>

+    <title>EXAMPLE</title>

+    <para>

+      For example, to obtain the subordinate UIDs of the testuser:

+    </para>

+    <para>

+<programlisting>

+$ getsubids testuser

+0: testuser 100000 65536

+</programlisting>

+    </para>

+    <para>

+      This command output provides (in order from left to right) the list

+      index, username, UID range start, and number of UIDs in range.

+    </para>

+  </refsect1>

+

+  <refsect1 id='see_also'>

+    <title>SEE ALSO</title>

+    <para>

+      <citerefentry>

+        <refentrytitle>login.defs</refentrytitle><manvolnum>5</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>newgidmap</refentrytitle><manvolnum>1</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>newuidmap</refentrytitle><manvolnum>1</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>subgid</refentrytitle><manvolnum>5</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>subuid</refentrytitle><manvolnum>5</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>useradd</refentrytitle><manvolnum>8</manvolnum>

+      </citerefentry>,

+      <citerefentry>

+        <refentrytitle>userdel</refentrytitle><manvolnum>8</manvolnum>

+      </citerefentry>.

+      <citerefentry>

+        <refentrytitle>usermod</refentrytitle><manvolnum>8</manvolnum>

+      </citerefentry>,

+    </para>

+  </refsect1>

+</refentry>

diff -up shadow-4.9/man/Makefile.am.getsubids shadow-4.9/man/Makefile.am

--- shadow-4.9/man/Makefile.am.getsubids	2021-07-22 23:55:35.000000000 +0200

+++ shadow-4.9/man/Makefile.am	2021-11-18 16:27:33.951053120 +0100

@@ -62,6 +62,7 @@ man_MANS += $(man_nopam)

 endif

 man_subids = \

+	man1/getsubids.1 \

 	man1/newgidmap.1 \

 	man1/newuidmap.1 \

 	man5/subgid.5 \

@@ -80,6 +81,7 @@ man_XMANS = \

 	expiry.1.xml \

 	faillog.5.xml \

 	faillog.8.xml \

+	getsubids.1.xml \

 	gpasswd.1.xml \

 	groupadd.8.xml \

 	groupdel.8.xml \

diff -up shadow-4.9/src/getsubids.c.getsubids shadow-4.9/src/getsubids.c

--- shadow-4.9/src/getsubids.c.getsubids	2021-11-18 16:27:33.951053120 +0100

+++ shadow-4.9/src/getsubids.c	2021-11-18 16:27:33.951053120 +0100

@@ -0,0 +1,46 @@

+#include <stdio.h>

+#include <string.h>

+#include <stdlib.h>

+#include "subid.h"

+#include "prototypes.h"

+

+const char *Prog;

+FILE *shadow_logfd = NULL;

+

+void usage(void)

+{

+	fprintf(stderr, "Usage: %s [-g] user\n", Prog);

+	fprintf(stderr, "    list subuid ranges for user\n");

+	fprintf(stderr, "    pass -g to list subgid ranges\n");

+	exit(EXIT_FAILURE);

+}

+

+int main(int argc, char *argv[])

+{

+	int i, count=0;

+	struct subid_range *ranges;

+	const char *owner;

+

+	Prog = Basename (argv[0]);

+	shadow_logfd = stderr;

+	if (argc < 2)

+		usage();

+	owner = argv[1];

+	if (argc == 3 && strcmp(argv[1], "-g") == 0) {

+		owner = argv[2];

+		count = get_subgid_ranges(owner, &ranges;;

+	} else if (argc == 2 && strcmp(argv[1], "-h") == 0) {

+		usage();

+	} else {

+		count = get_subuid_ranges(owner, &ranges;;

+	}

+	if (!ranges) {

+		fprintf(stderr, "Error fetching ranges\n");

+		exit(1);

+	}

+	for (i = 0; i < count; i++) {

+		printf("%d: %s %lu %lu\n", i, owner,

+			ranges[i].start, ranges[i].count);

+	}

+	return 0;

+}

diff -up shadow-4.9/src/list_subid_ranges.c.getsubids shadow-4.9/src/list_subid_ranges.c

diff -up shadow-4.9/src/Makefile.am.getsubids shadow-4.9/src/Makefile.am

--- shadow-4.9/src/Makefile.am.getsubids	2021-11-18 16:27:33.943053061 +0100

+++ shadow-4.9/src/Makefile.am	2021-11-18 16:28:03.647272392 +0100

@@ -157,8 +157,8 @@ if FCAPS

 	setcap cap_setgid+ep $(DESTDIR)$(ubindir)/newgidmap

 endif

-noinst_PROGRAMS += list_subid_ranges  \

-					get_subid_owners \

+bin_PROGRAMS    +=  getsubids

+noinst_PROGRAMS +=  get_subid_owners \

 					new_subid_range \

 					free_subid_range \

 					check_subid_range

@@ -174,13 +174,13 @@ MISCLIBS = \

 	$(LIBCRYPT) \

 	$(LIBTCB)

-list_subid_ranges_LDADD = \

+getsubids_LDADD = \

 	$(top_builddir)/lib/libshadow.la \

 	$(top_builddir)/libmisc/libmisc.la \

 	$(top_builddir)/libsubid/libsubid.la \

 	$(MISCLIBS) -ldl

-list_subid_ranges_CPPFLAGS = \

+getsubids_CPPFLAGS = \

 	-I$(top_srcdir)/lib \

 	-I$(top_srcdir)/libmisc \

 	-I$(top_srcdir)/libsubid