coreutils/coreutils-5.2.1-runuser.patch

--- coreutils-6.10/tests/misc/help-version.runuser	
+++ coreutils-6.10/tests/misc/help-version	
@@ -168,6 +168,7 @@
 seq_args=10
 sleep_args=0
 su_args=--version
+runuser_args=--version
 
 # I'd rather not run sync, since it spins up disks that I've
 # deliberately caused to spin down (but not unmounted).
--- coreutils-6.10/README.runuser	
+++ coreutils-6.10/README	
@@ -11,8 +11,8 @@
   factor false fmt fold groups head hostid hostname id install join kill
   link ln logname ls md5sum mkdir mkfifo mknod mktemp mv nice nl nohup
   od paste pathchk pinky pr printenv printf ptx pwd readlink rm rmdir
-  runcon seq sha1sum sha224sum sha256sum sha384sum sha512sum shred shuf
-  sleep sort split stat stty su sum sync tac tail tee test touch tr true
+  runcon runuser seq sha1sum sha224sum sha256sum sha384sum sha512sum shred
+  shuf sleep sort split stat stty su sum sync tac tail tee test touch tr true
   tsort tty uname unexpand uniq unlink uptime users vdir wc who whoami yes

 See the file NEWS for a list of major changes in the current release.
--- coreutils-6.7/src/su.c.runuser	2007-01-09 17:27:56.000000000 +0000
+++ coreutils-6.7/src/su.c	2007-01-09 17:30:12.000000000 +0000
@@ -110,9 +110,15 @@
 #include "error.h"
 
 /* The official name of this program (e.g., no `g' prefix).  */
+#ifndef RUNUSER
 #define PROGRAM_NAME "su"
+#else
+#define PROGRAM_NAME "runuser"
+#endif
 
+#ifndef AUTHORS
 #define AUTHORS "David MacKenzie"
+#endif
 
 #if HAVE_PATHS_H
 # include <paths.h>
@@ -150,6 +156,10 @@
 #ifndef USE_PAM
 char *crypt ();
 #endif
+#ifndef CHECKPASSWD
+#define CHECKPASSWD 1
+#endif
+
 char *getusershell ();
 void endusershell ();
 void setusershell ();
@@ -157,7 +167,11 @@
 extern char **environ;
 
 static void run_shell (char const *, char const *, char **, size_t,
-	const struct passwd *)
+	const struct passwd *
+#ifdef RUNUSER
+		       , gid_t *groups, int num_groups
+#endif
+	)
 #ifdef USE_PAM
 	;
 #else
@@ -187,6 +201,10 @@
   {"login", no_argument, NULL, 'l'},
   {"preserve-environment", no_argument, NULL, 'p'},
   {"shell", required_argument, NULL, 's'},
+#ifdef RUNUSER
+  {"group", required_argument, NULL, 'g'},
+  {"supp-group", required_argument, NULL, 'G'},
+#endif
   {GETOPT_HELP_OPTION_DECL},
   {GETOPT_VERSION_OPTION_DECL},
   {NULL, 0, NULL, 0}
@@ -288,10 +306,12 @@
   retval = pam_start(PROGRAM_NAME, pw->pw_name, &conv, &pamh);
   PAM_BAIL_P;
 
+#ifndef RUNUSER
   if (getuid() != 0 && !isatty(0)) {
 	fprintf(stderr, "standard in must be a tty\n");
 	exit(1);
   }
+#endif
 
   caller = getpwuid(getuid());
   if(caller != NULL && caller->pw_name != NULL) {
@@ -308,6 +328,11 @@
     retval = pam_set_item(pamh, PAM_TTY, tty_name);
     PAM_BAIL_P;
   }
+#ifdef RUNUSER
+  if (getuid() != geteuid())
+    /* safety net: deny operation if we are suid by accident */
+    error(EXIT_FAILURE, 1, "runuser may not be setuid");
+#else
   retval = pam_authenticate(pamh, 0);
   PAM_BAIL_P;
   retval = pam_acct_mgmt(pamh, 0);
@@ -317,6 +342,7 @@
     PAM_BAIL_P;
   }
   PAM_BAIL_P;
+#endif
   /* must be authenticated if this point was reached */
   return 1;
 #else /* !USE_PAM */
@@ -398,11 +424,22 @@
 /* Become the user and group(s) specified by PW.  */
 
 static void
-change_identity (const struct passwd *pw)
+change_identity (const struct passwd *pw
+#ifdef RUNUSER
+		 , gid_t *groups, int num_groups
+#endif
+	)
 {
 #ifdef HAVE_INITGROUPS
+  int rc = 0;
   errno = 0;
-  if (initgroups (pw->pw_name, pw->pw_gid) == -1) {
+#ifdef RUNUSER
+  if (num_groups)
+    rc = setgroups(num_groups, groups);
+  else
+#endif
+    rc = initgroups(pw->pw_name, pw->pw_gid);
+  if (rc == -1) {
 #ifdef USE_PAM
     pam_close_session(pamh, 0);
     pam_end(pamh, PAM_ABORT);
@@ -449,7 +486,11 @@
 
 static void
 run_shell (char const *shell, char const *command, char **additional_args,
-	   size_t n_additional_args, const struct passwd *pw)
+	   size_t n_additional_args, const struct passwd *pw
+#ifdef RUNUSER
+	   , gid_t *groups, int num_groups
+#endif
+	)
 {
   size_t n_args = 1 + fast_startup + 2 * !!command + n_additional_args + 1;
   char const **args = xnmalloc (n_args, sizeof *args);
@@ -480,7 +521,11 @@
 
   child = fork();
   if (child == 0) {  /* child shell */
-  change_identity (pw);
+  change_identity (pw
+#ifdef RUNUSER
+		   , groups, num_groups
+#endif
+	  );
   pam_end(pamh, 0);
   if (!same_session)
     setsid ();
@@ -657,6 +702,12 @@
   char *shell = NULL;
   struct passwd *pw;
   struct passwd pw_copy;
+#ifdef RUNUSER
+  struct group *gr;
+  gid_t groups[NGROUPS_MAX];
+  int num_supp_groups = 0;
+  int use_gid = 0;
+#endif
 
   initialize_main (&argc, &argv);
   program_name = argv[0];
@@ -671,7 +722,11 @@
   simulate_login = false;
   change_environment = true;
 
-  while ((optc = getopt_long (argc, argv, "c:flmps:", longopts, NULL)) != -1)
+  while ((optc = getopt_long (argc, argv, "c:flmps:"
+#ifdef RUNUSER
+			      "g:G:"
+#endif
+			      , longopts, NULL)) != -1)
     {
       switch (optc)
 	{
@@ -701,6 +756,28 @@
 	  shell = optarg;
 	  break;
 
+#ifdef RUNUSER
+	case 'g':
+	  gr = getgrnam(optarg);
+	  if (!gr)
+	    error (EXIT_FAILURE, 0, _("group %s does not exist"), optarg);
+	  use_gid = 1;
+	  groups[0] = gr->gr_gid;
+	  break;
+
+	case 'G':
+	  num_supp_groups++;
+	  if (num_supp_groups >= NGROUPS_MAX)
+	    error (EXIT_FAILURE, 0,
+		   _("Can't specify more than %d supplemental groups"),
+		   NGROUPS_MAX - 1);
+	  gr = getgrnam(optarg);
+	  if (!gr)
+	    error (EXIT_FAILURE, 0, _("group %s does not exist"), optarg);
+	  groups[num_supp_groups] = gr->gr_gid;
+	  break;
+#endif
+
 	case_GETOPT_HELP_CHAR;
 
 	case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
@@ -739,7 +816,20 @@
 			  : DEFAULT_SHELL);
   endpwent ();
 
-  if (!correct_password (pw))
+#ifdef RUNUSER
+  if (num_supp_groups && !use_gid)
+  {
+    pw->pw_gid = groups[1];
+    memmove (groups, groups + 1, sizeof(gid_t) * num_supp_groups);
+  }
+  else if (use_gid)
+  {
+    pw->pw_gid = groups[0];
+    num_supp_groups++;
+  }
+#endif
+
+  if (CHECKPASSWD && !correct_password (pw))
     {
 #ifdef SYSLOG_FAILURE
       log_su (pw, false);
@@ -771,8 +861,16 @@
   modify_environment (pw, shell);
 
 #ifndef USE_PAM
-  change_identity (pw);
+  change_identity (pw
+#ifdef RUNUSER
+		   , groups, num_supp_groups
+#endif
+		   );
 #endif
 
-  run_shell (shell, command, argv + optind, MAX (0, argc - optind), pw);
+  run_shell (shell, command, argv + optind, MAX (0, argc - optind), pw
+#ifdef RUNUSER
+	     , groups, num_supp_groups
+#endif
+	     );
 }
--- coreutils-6.10/src/Makefile.am.runuser	
+++ coreutils-6.10/src/Makefile.am	
@@ -38,7 +38,7 @@
   shuf sort split sum tac tail tr tsort unexpand uniq wc \
   basename date dirname echo env expr factor false \
   id kill logname pathchk printenv printf pwd \
-  runcon seq sleep tee \
+  runcon runuser seq sleep tee \
   test true tty whoami yes \
   base64

@@ -112,6 +112,10 @@
 mv_LDADD += $(LIB_ACL)
 ginstall_LDADD += $(LIB_ACL)
 
+runuser_SOURCES = su.c
+runuser_CFLAGS = -DRUNUSER -DAUTHORS="\"David MacKenzie, Dan Walsh\""
+runuser_LDADD = $(LDADD) $(LIB_CRYPT) @LIB_PAM@
+
 $(PROGRAMS): ../lib/libcoreutils.a
 
 SUFFIXES = .sh
@@ -126,7 +130,7 @@
 	chmod +x $@-t
 	mv $@-t $@
 
-all-local: su$(EXEEXT)
+all-local: su$(EXEEXT) runuser
 
 installed_su = $(DESTDIR)$(bindir)/`echo su|sed '$(transform)'`
 
--- coreutils-6.10/AUTHORS.runuser
+++ coreutils-6.10/AUTHORS	
@@ -60,6 +60,7 @@
 readlink: Dmitry V. Levin
 rm: Paul Rubin, David MacKenzie, Richard Stallman, Jim Meyering
 rmdir: David MacKenzie
+runuser: David MacKenzie, Dan Walsh
 runcon: Russell Coker
 seq: Ulrich Drepper
 sha1sum: Ulrich Drepper, Scott Miller, David Madore
--- coreutils-6.10/man/Makefile.am.runuser
+++ coreutils-6.10/man/Makefile.am
@@ -92,6 +92,7 @@
 rm.1:		$(common_dep)	$(srcdir)/rm.x		../src/rm.c
 rmdir.1:	$(common_dep)	$(srcdir)/rmdir.x	../src/rmdir.c
 runcon.1:	$(common_dep)	$(srcdir)/runcon.x	../src/runcon.c
+runuser.1:	$(common_dep)	$(srcdir)/runuser.x	../src/su.c
 seq.1:		$(common_dep)	$(srcdir)/seq.x		../src/seq.c
 sha1sum.1:	$(common_dep)	$(srcdir)/sha1sum.x	../src/md5sum.c
 sha224sum.1:	$(common_dep)	$(srcdir)/sha224sum.x	../src/md5sum.c
--- /dev/null	2007-01-09 09:38:07.860075128 +0000
+++ coreutils-6.7/man/runuser.x	2007-01-09 17:27:56.000000000 +0000
@@ -0,0 +1,4 @@
+[NAME]
+runuser \- run a shell with substitute user and group IDs
+[DESCRIPTION]
+.\" Add any additional description here
--- /dev/null	2007-01-09 09:38:07.860075128 +0000
+++ coreutils-6.10/man/runuser.1	2007-01-09 17:27:56.000000000 +0000
@@ -0,0 +1,68 @@
+.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.33.
+.TH RUNUSER "1" "September 2004" "runuser (coreutils) 5.2.1" "User Commands"
+.SH NAME
+runuser \- run a shell with substitute user and group IDs, similar to su, but will not run PAM hooks
+.SH SYNOPSIS
+.B runuser
+[\fIOPTION\fR]... [\fI-\fR] [\fIUSER \fR[\fIARG\fR]...]
+.SH DESCRIPTION
+.\" Add any additional description here
+.PP
+Change the effective user id and group id to that of USER.  No PAM hooks
+are run, and there will be no password prompt.  This command is useful
+when run as the root user.  If run as a non-root user without privilege
+to set user ID, the command will fail.
+.TP
+-, \fB\-l\fR, \fB\-\-login\fR
+make the shell a login shell, uses runuser-l PAM file instead of default one.
+.TP
+\fB\-c\fR, \fB\-\-commmand\fR=\fICOMMAND\fR
+pass a single COMMAND to the shell with \fB\-c\fR
+.TP
+\fB\-f\fR, \fB\-\-fast\fR
+pass \fB\-f\fR to the shell (for csh or tcsh)
+.TP
+\fB\-g\fR, \fB\-\-group\fR=\fIGROUP\fR
+specify the primary group
+.TP
+\fB\-G\fR, \fB\-\-supp-group\fR=\fIGROUP\fR
+specify a supplemental group
+.TP
+\fB\-m\fR, \fB\-\-preserve\-environment\fR
+do not reset environment variables
+.TP
+\fB\-p\fR
+same as \fB\-m\fR
+.TP
+\fB\-s\fR, \fB\-\-shell\fR=\fISHELL\fR
+run SHELL if /etc/shells allows it
+.TP
+\fB\-\-help\fR
+display this help and exit
+.TP
+\fB\-\-version\fR
+output version information and exit
+.PP
+A mere - implies \fB\-l\fR.   If USER not given, assume root.
+.SH AUTHOR
+Written by David MacKenzie, Dan Walsh.
+.SH "REPORTING BUGS"
+Report bugs to <bug-coreutils@gnu.org>.
+.SH COPYRIGHT
+Copyright \(co 2004 Free Software Foundation, Inc.
+.br
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+.SH "SEE ALSO"
+Since this command is trimmed down version of su use you can use the su manual.
+The full documentation for
+.B su
+is maintained as a Texinfo manual.  If the
+.B info
+and
+.B su
+programs are properly installed at your site, the command
+.IP
+.B info coreutils su
+.PP
+should give you access to the complete manual.