use do_open() instead of open() in several places to help the WinXX port

and O_BINARY

checksum.c

@@ -93,7 +93,7 @@ void file_checksum(char *fname,char *sum,OFF_T size)
 	
 	memset(sum,0,MD4_SUM_LENGTH);
 	
-	fd = open(fname,O_RDONLY);
+	fd = do_open(fname, O_RDONLY, 0);
 	if (fd == -1) return;
 	
 	buf = map_file(fd,size);

generator.c

@@ -340,7 +340,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 	}
 
 	/* open the file */  
-	fd = open(fnamecmp,O_RDONLY);
+	fd = do_open(fnamecmp, O_RDONLY, 0);
 
 	if (fd == -1) {
 		rprintf(FERROR,"failed to open %s : %s\n",fnamecmp,strerror(errno));

receiver.c

@@ -358,14 +358,14 @@ int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 		fnamecmp = fname;
 
 		/* open the file */  
-		fd1 = open(fnamecmp,O_RDONLY);
+		fd1 = do_open(fnamecmp, O_RDONLY, 0);
 
 		if ((fd1 == -1) && (compare_dest != NULL)) {
 			/* try the file at compare_dest instead */
 			slprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",
 						compare_dest,fname);
 			fnamecmp = fnamecmpbuf;
-			fd1 = open(fnamecmp,O_RDONLY);
+			fd1 = do_open(fnamecmp, O_RDONLY, 0);
 		}
 
 		if (fd1 != -1 && do_fstat(fd1,&st) != 0) {

sender.c

@@ -160,7 +160,7 @@ void send_files(struct file_list *flist,int f_out,int f_in)
 			return;
 		}
 	  
-		fd = open(fname,O_RDONLY);
+		fd = do_open(fname, O_RDONLY, 0);
 		if (fd == -1) {
 			io_error = 1;
 			rprintf(FERROR,"send_files failed to open %s: %s\n",

util.c

@@ -282,7 +282,7 @@ int copy_file(char *source, char *dest, mode_t mode)
 	char buf[1024 * 8];
 	int len;   /* Number of bytes read into `buf'. */
 
-	ifd = open(source, O_RDONLY);
+	ifd = do_open(source, O_RDONLY, 0);
 	if (ifd == -1) {
 		rprintf(FERROR,"open %s: %s\n",
 			source,strerror(errno));