No longer calls closedir with NULL pointer if opendir fails.

src/sbbs3/bat_xfer.cpp

@@ -642,6 +642,7 @@ void sbbs_t::batch_upload()
 			uploadfile(&f); 
 		}
 	}
+	if(dir!=NULL)
 		closedir(dir);
 }
 

src/sbbs3/pack_qwk.cpp

@@ -494,6 +494,7 @@ bool sbbs_t::pack_qwk(char *packet, ulong *msgcnt, bool prepack)
 			if(!mv(str,tmp2,1))
 				netfiles++;
 		}
+		if(dir!=NULL)
 			closedir(dir);
 		if(netfiles)
 			CRLF; }
@@ -616,6 +617,7 @@ bool sbbs_t::pack_qwk(char *packet, ulong *msgcnt, bool prepack)
 			if(!isdir(tmp))
 				remove(tmp); 
 		}
+		if(dir!=NULL)
 			closedir(dir);
 	}
 

src/sbbs3/tmp_xfer.cpp

@@ -311,6 +311,7 @@ void sbbs_t::extract(uint dirnum)
         		if(!isdir(str))
 					remove(str);
 			}
+			if(dir!=NULL)
 				closedir(dir);
 			CRLF; 
 		} 

src/sbbs3/un_rep.cpp

@@ -425,6 +425,7 @@ bool sbbs_t::unpack_rep(char* repfile)
 			sprintf(str,text[ReceivedFileViaQWK],dirent->d_name,useron.alias);
 			putsmsg(&cfg,1,str);
 		} 
+		if(dir!=NULL)
 			closedir(dir);
 		sprintf(str,"%sqnet-rep.now",cfg.data_dir);
 		if((file=nopen(str,O_WRONLY|O_CREAT|O_TRUNC))!=-1)

src/sbbs3/upload.cpp

@@ -579,6 +579,7 @@ bool sbbs_t::bulkupload(uint dirnum)
 			uploadfile(&f); 
 		}
 	}
+	if(dir!=NULL)
 		closedir(dir);
 	if(sys_status&SS_ABORT)
 		return(true);