From 9c2ebd1f4244aa98b29d9391816003f1f62817e2 Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Fri, 21 May 1999 03:56:17 +0000
Subject: [PATCH] Assert pointer args

---
 libraries/libldap/result.c | 40 ++++++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

diff --git a/libraries/libldap/result.c b/libraries/libldap/result.c
index 68057ab7b4..48fdcc2c22 100644
--- a/libraries/libldap/result.c
+++ b/libraries/libldap/result.c
@@ -61,6 +61,20 @@ ldap_result( LDAP *ld, int msgid, int all, struct timeval *timeout,
 {
 	LDAPMessage	*lm, *lastlm, *nextlm;
 
+	assert( ld != NULL );
+	assert( result != NULL );
+
+	Debug( LDAP_DEBUG_TRACE, "ldap_result\n", 0, 0, 0 );
+
+	if( ld == NULL ) {
+		return -1;
+	}
+
+	if( result == NULL ) {
+		ld->ld_errno = LDAP_PARAM_ERROR;
+		return -1;
+	}
+
 	/*
 	 * First, look through the list of responses we have received on
 	 * this association and see if the response we're interested in
@@ -68,8 +82,6 @@ ldap_result( LDAP *ld, int msgid, int all, struct timeval *timeout,
 	 * wait until it arrives or timeout occurs.
 	 */
 
-	Debug( LDAP_DEBUG_TRACE, "ldap_result\n", 0, 0, 0 );
-
 	*result = NULLMSG;
 	lastlm = NULLMSG;
 	for ( lm = ld->ld_responses; lm != NULLMSG; lm = nextlm ) {
@@ -144,6 +156,9 @@ wait4msg( LDAP *ld, int msgid, int all, struct timeval *timeout,
 	LDAPConn	*lc, *nextlc;
 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
 
+	assert( ld != NULL );
+	assert( result != NULL );
+
 #ifdef LDAP_DEBUG
 	if ( timeout == NULL ) {
 		Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout)\n",
@@ -275,13 +290,20 @@ try_read1msg( LDAP *ld, int msgid, int all, Sockbuf *sb,
 	BerElement	tmpber;
 	int		rc, refer_cnt, hadref, simple_request;
 	unsigned long	lderr;
+
+	assert( ld != NULL );
+	assert( lc != NULL );
 	
 	ber = &lc->lconn_ber;
+
 #else
+	assert( ld != NULL );
+
 	ber = &ld->ld_ber;
 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
 
 	Debug( LDAP_DEBUG_TRACE, "read1msg\n", 0, 0, 0 );
+
 #if 0
 	ber_init_w_nullc( &ber, 0 );
 	ldap_set_ber_options( ld, &ber );
@@ -607,6 +629,8 @@ ldap_select1( LDAP *ld, struct timeval *timeout )
 	fd_set		readfds;
 	static int	tblsize;
 
+	assert( ld != NULL );
+
 	if ( tblsize == 0 ) {
 #ifdef HAVE_SYSCONF
 		tblsize = sysconf( _SC_OPEN_MAX );
@@ -634,13 +658,17 @@ ldap_select1( LDAP *ld, struct timeval *timeout )
 int
 ldap_msgtype( LDAPMessage *lm )
 {
-	return( lm ? lm->lm_msgtype : -1 );
+	assert( lm != NULL );
+	return ( lm == NULL ) ? lm->lm_msgtype : -1;
 }
 
+
 int
 ldap_msgid( LDAPMessage *lm )
 {
-	return( lm ? lm->lm_msgid : -1 );
+	assert( lm != NULL );
+
+	return ( lm == NULL ) ? lm->lm_msgid : -1;
 }
 
 
@@ -650,6 +678,8 @@ ldap_msgfree( LDAPMessage *lm )
 	LDAPMessage	*next;
 	int		type = 0;
 
+	assert( lm != NULL );
+
 	Debug( LDAP_DEBUG_TRACE, "ldap_msgfree\n", 0, 0, 0 );
 
 	for ( ; lm != NULLMSG; lm = next ) {
@@ -672,6 +702,8 @@ ldap_msgdelete( LDAP *ld, int msgid )
 {
 	LDAPMessage	*lm, *prev;
 
+	assert( ld != NULL );
+
 	Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
 
 	prev = NULLMSG;
-- 
2.39.5