From 1fac2c4937dae665d2f85628f861e8f4bdda4da8 Mon Sep 17 00:00:00 2001
From: "Andrew G. Morgan" <morgan@kernel.org>
Date: Tue, 13 Nov 2001 05:07:24 +0000
Subject: [PATCH] Relevant BUGIDs: 476986

Purpose of commit: new feature, cleanup

Commit summary:
---------------
patch from Nalin to support '+hostname' as equivalent to 'hostname'.
fixed compiler warning by working out when to include header file.
---
 CHANGELOG                            |  2 ++
 _pam_aconf.h.in                      |  4 ++++
 configure                            |  2 +-
 configure.in                         |  2 +-
 modules/pam_rhosts/pam_rhosts_auth.c | 10 +++++++---
 5 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 89d9989a..288873f9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -49,6 +49,8 @@ bug report - outstanding bugs are listed here:
 0.76: please submit patches for this section with actual code/doc
       patches!
 
+* pam_rhosts: Nalin adds support for '+hostname', and zdd fix
+  compilation warning. (Bug 476986 - agmorgan)
 * pam_motd: Nalin fixed compiler warning. (Bug 476938 - agmorgan)
 * pam_pwdb: Solar Designer pointed out that there was a problem with
   the compatibility support for md5 password hashing. (Bug 460717,
diff --git a/_pam_aconf.h.in b/_pam_aconf.h.in
index baa97170..1b2cea75 100644
--- a/_pam_aconf.h.in
+++ b/_pam_aconf.h.in
@@ -79,4 +79,8 @@
 /* location of the mail spool directory */
 #undef PAM_PATH_MAILDIR
 
+/* where should we include setfsuid's prototype from? If this is not
+   defined, we get it from unistd.h */
+#undef HAVE_SYS_FSUID_H
+
 #endif /* PAM_ACONF_H */
diff --git a/configure b/configure
index 813c1e5a..f4b21869 100755
--- a/configure
+++ b/configure
@@ -2124,7 +2124,7 @@ EOF
 
 fi
 
-for ac_hdr in fcntl.h limits.h malloc.h sys/file.h sys/ioctl.h sys/time.h syslog.h termio.h unistd.h
+for ac_hdr in fcntl.h limits.h malloc.h sys/file.h sys/ioctl.h sys/time.h syslog.h termio.h unistd.h sys/fsuid.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
diff --git a/configure.in b/configure.in
index 0227c412..0f5b8d89 100644
--- a/configure.in
+++ b/configure.in
@@ -222,7 +222,7 @@ dnl Checks for header files.
 AC_HEADER_DIRENT
 AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/file.h sys/ioctl.h sys/time.h syslog.h termio.h unistd.h)
+AC_CHECK_HEADERS(fcntl.h limits.h malloc.h sys/file.h sys/ioctl.h sys/time.h syslog.h termio.h unistd.h sys/fsuid.h)
 
 dnl Linux wants features.h in some of the source files.
 AC_CHECK_HEADERS(features.h)
diff --git a/modules/pam_rhosts/pam_rhosts_auth.c b/modules/pam_rhosts/pam_rhosts_auth.c
index b633a529..7ee77f1d 100644
--- a/modules/pam_rhosts/pam_rhosts_auth.c
+++ b/modules/pam_rhosts/pam_rhosts_auth.c
@@ -38,7 +38,7 @@
  * SUCH DAMAGE.
  */
 
-#define _BSD_SOURCE
+#include <security/_pam_aconf.h>
 
 #define USER_RHOSTS_FILE "/.rhosts"     /* prefixed by user's home dir */
 
@@ -46,9 +46,9 @@
 #include <endian.h>
 #endif
 
-#ifdef NEED_FSUID_H
+#ifdef HAVE_SYS_FSUID_H
 #include <sys/fsuid.h>
-#endif /* NEED_FSUID_H */
+#endif /* HAVE_SYS_FSUID_H */
 
 #include <sys/types.h>
 #include <sys/uio.h>
@@ -282,8 +282,12 @@ __icheckhost (pam_handle_t *pamh, struct _options *opts, U32 raddr
 	    return (1);                     /* asking for trouble, but ok.. */
 	/* If not promiscuous: handle as negative */
 	return (-1);
+    } else if (strncmp("+",lhost,1) == 0) {
+	/* '+hostname' is supposed to be equivalent to 'hostname' */
+	lhost++;
     }
 
+
     /* Try for raw ip address first. */
     if (isdigit(*lhost) && (long)(laddr = inet_addr(lhost)) != -1)
 	return (negate*(! (raddr ^ laddr)));
-- 
2.40.0