Solaris doesn't like NULL pointers in printf, which now can occur since...

Solaris doesn't like NULL pointers in printf, which now can occur since IA5string allows the empty string

servers/slapd/overlays/rwmmap.c

@@ -499,7 +499,7 @@ rwm_int_filter_map_rewrite(
 		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
 		ch_free( vtmp.bv_val );
 		break;
@@ -516,7 +516,7 @@ rwm_int_filter_map_rewrite(
 		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
 		ch_free( vtmp.bv_val );
 		break;
@@ -533,7 +533,7 @@ rwm_int_filter_map_rewrite(
 		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
 		ch_free( vtmp.bv_val );
 		break;
@@ -550,7 +550,7 @@ rwm_int_filter_map_rewrite(
 		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
 		ch_free( vtmp.bv_val );
 		break;
@@ -581,7 +581,7 @@ rwm_int_filter_map_rewrite(
 
 			snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
 				/* "(attr=" */ "%s*)",
-				vtmp.bv_val );
+				vtmp.bv_len ? vtmp.bv_val : "" );
 
 			ch_free( vtmp.bv_val );
 		}
@@ -596,7 +596,7 @@ rwm_int_filter_map_rewrite(
 
 				snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 					/* "(attr=[init]*[any*]" */ "%s*)",
-					vtmp.bv_val );
+					vtmp.bv_len ? vtmp.bv_val : "" );
 				ch_free( vtmp.bv_val );
 			}
 		}
@@ -611,7 +611,7 @@ rwm_int_filter_map_rewrite(
 
 			snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 				/* "(attr=[init*][any*]" */ "%s)",
-				vtmp.bv_val );
+				vtmp.bv_len ? vtmp.bv_val : "" );
 
 			ch_free( vtmp.bv_val );
 		}
@@ -657,7 +657,7 @@ rwm_int_filter_map_rewrite(
 			fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
 
 			snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2, 
-				/*"("*/ "%s)", vtmp.bv_val );
+				/*"("*/ "%s)", vtmp.bv_len ? vtmp.bv_val : "" );
 
 			ch_free( vtmp.bv_val );
 		}
@@ -690,7 +690,7 @@ rwm_int_filter_map_rewrite(
 			f->f_mr_dnattrs ? ":dn" : "",
 			!BER_BVISEMPTY( &f->f_mr_rule_text ) ? ":" : "",
 			!BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_val : "",
-			vtmp.bv_val );
+			vtmp.bv_len ? vtmp.bv_val : "" );
 		ch_free( vtmp.bv_val );
 		break;
 	}