From e4998337e75c5e9debe914ff4eb2c0b0fa97c156 Mon Sep 17 00:00:00 2001
From: Gerald Carter <jerry@samba.org>
Date: Sun, 2 Apr 2006 19:45:42 +0000
Subject: r14868: I will not write code when changing to Daylight Savings Time.
 I will not write code when changing to Daylight Savings Time. I will not
 write code when changing to Daylight Savings Time. I will not write code when
 changing to Daylight Savings Time. I will not write code when changing to
 Daylight Savings Time. I will not write code when changing to Daylight
 Savings Time. I will not write code when changing to Daylight Savings Time. I
 will not write code when changing to Daylight Savings Time. I will not write
 code when changing to Daylight Savings Time.

...

Fix my brain dead inverted logic for turning winbindd on and off
when run on a DC or when calling pdb functions from within winbindd.
(This used to be commit 021b3dc2db9fb422ede4657a1f27ef7ef2d22cee)
---
 source3/lib/system_smbd.c      | 16 ++++++----------
 source3/nsswitch/wb_common.c   | 16 +++++++++-------
 source3/nsswitch/winbindd.c    |  2 +-
 source3/passdb/pdb_interface.c | 15 ++++++++++-----
 4 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/source3/lib/system_smbd.c b/source3/lib/system_smbd.c
index ac7a096295..afa64489cf 100644
--- a/source3/lib/system_smbd.c
+++ b/source3/lib/system_smbd.c
@@ -132,13 +132,7 @@ static int sys_getgrouplist(const char *user, gid_t gid, gid_t *groups, int *grp
 	 * always determined by the info3 coming back from auth3 or the
 	 * PAC. */
 
-	if ( !winbind_putenv("0") ) {
-		DEBUG(0,("sys_getgroup_list: Insufficient environment space "
-			 "for %s\n", WINBINDD_DONT_ENV));
-	} else {
-		DEBUG(10,("sys_getgrouplist(): disabled winbindd for group "
-			  "lookup [user == %s]\n", user));
-	}
+	winbind_off() ;
 
 #ifdef HAVE_GETGROUPLIST
 	retval = getgrouplist(user, gid, groups, grpcnt);
@@ -148,10 +142,12 @@ static int sys_getgrouplist(const char *user, gid_t gid, gid_t *groups, int *grp
 	unbecome_root();
 #endif
 
-	/* allow winbindd lookups */
+	/* allow winbindd lookups , but only if they were not already disabled */
+
+	if ( !(winbindd_env && strequal(winbindd_env, "1")) ) {
+		winbind_on();
+	}
 
-	winbind_putenv( winbindd_env ? winbindd_env : "1" );
-	
 	return retval;
 }
 
diff --git a/source3/nsswitch/wb_common.c b/source3/nsswitch/wb_common.c
index 05f080e73a..91ec912b7d 100644
--- a/source3/nsswitch/wb_common.c
+++ b/source3/nsswitch/wb_common.c
@@ -618,15 +618,17 @@ NSS_STATUS winbindd_request_response(int req_type,
 /* Use putenv() instead of setenv() in these functions as not all
    environments have the latter. */
 
-BOOL winbind_putenv( const char *s )
+BOOL winbind_off( void )
 {
-	fstring env;
+	static char *s = CONST_DISCARD(char *, WINBINDD_DONT_ENV "=1");
 
-	if ( !s ) {
-		return False;
-	}
+	return putenv(s) != -1;
+}
 
-	snprintf( env, sizeof(env), "%s=%s", WINBINDD_DONT_ENV, s );
+BOOL winbind_on( void )
+{
+	static char *s = CONST_DISCARD(char *, WINBINDD_DONT_ENV "=0");
 
-	return putenv(env) != -1;
+	return putenv(s) != -1;
 }
+
diff --git a/source3/nsswitch/winbindd.c b/source3/nsswitch/winbindd.c
index 51a7c1f6b0..ad2774eea6 100644
--- a/source3/nsswitch/winbindd.c
+++ b/source3/nsswitch/winbindd.c
@@ -945,7 +945,7 @@ int main(int argc, char **argv)
 	/* Set environment variable so we don't recursively call ourselves.
 	   This may also be useful interactively. */
 
-	if ( !winbind_putenv("0") ) {
+	if ( !winbind_off() ) {
 		DEBUG(0,("Failed to disable recusive winbindd calls.  Exiting.\n"));
 		exit(1);
 	}
diff --git a/source3/passdb/pdb_interface.c b/source3/passdb/pdb_interface.c
index 88cf387838..b6e635cca1 100644
--- a/source3/passdb/pdb_interface.c
+++ b/source3/passdb/pdb_interface.c
@@ -1509,11 +1509,13 @@ static BOOL get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size
 	/* We only look at our own sam, so don't care about imported stuff */
 
 	winbindd_env = getenv(WINBINDD_DONT_ENV);
-	winbind_putenv("0");
+	winbind_off();
 
 	if ((grp = getgrgid(gid)) == NULL) {
-		/* allow winbindd lookups */
-		winbind_putenv( winbindd_env ? winbindd_env : "1" );
+		/* allow winbindd lookups, but only if they weren't already disabled */
+		if ( !(winbindd_env && strequal(winbindd_env, "1")) ) {
+			winbind_on();
+		}
 
 		return False;
 	}
@@ -1539,8 +1541,11 @@ static BOOL get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, size
 		add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num);
 	}
 
-	/* allow winbindd lookups */
-	winbind_putenv( winbindd_env ? winbindd_env : "1" );
+	/* allow winbindd lookups, but only if they weren't already disabled */
+
+	if ( !(winbindd_env && strequal(winbindd_env, "1")) ) {
+		winbind_on();
+	}
 
 	return True;
 }
-- 
cgit