X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe-android/blobdiff_plain/9190adc66f814b8b9add2d2df2ff65b43175104b..0157de026e802e94a2d0db0421b02ffca986c616:/tar.scala

diff --git a/tar.scala b/tar.scala
index 30a3a4a..986eeaa 100644
--- a/tar.scala
+++ b/tar.scala
@@ -35,6 +35,8 @@ import java.util.Date;
 import sys.FileInfo;
 import sys.FileInfo.{Value, FIFO, CHR, DIR, BLK, REG, LNK, HDLNK, UNK};
 
+import Implicits.truish;
+
 /*----- Main code ---------------------------------------------------------*/
 
 class TarFormatError(msg: String) extends Exception(msg);
@@ -98,12 +100,10 @@ trait TarEntry {
 
     /* Then the permissions bits.  Ugh, the permissions bits. */
     def perm(s: Int, r: Int, w: Int, x: Int, schar: Char, Schar: Char) {
-      sb += (if ((mode&r) != 0) 'r' else '-');
-      sb += (if ((mode&w) != 0) 'w' else '-');
-      sb += (if ((mode&s) != 0)
-	       if ((mode&x) != 0) schar else Schar;
-	     else
-	       if ((mode&x) != 0) 'x' else '-');
+      sb += (if (mode&r) 'r' else '-');
+      sb += (if (mode&w) 'w' else '-');
+      sb += (if (mode&s) { if (mode&x) schar else Schar; }
+	     else { if (mode&x) 'x' else '-' });
     }
     perm(0x800, 0x100, 0x080, 0x040, 's', 'S');
     perm(0x400, 0x020, 0x010, 0x008, 's', 'S');
@@ -337,7 +337,7 @@ class TarFile(in: InputStream)
       val b = hdr(i);
 
       /* See if we're done now. */
-      if (b == ' ' || b == 0) return n;
+      if (!b || b == ' ') return n;
       else if (b < '0' || b > '7')
 	throw new TarFormatError(s"bad octal digit (at ${offset + off + i})");
 
@@ -407,7 +407,7 @@ class TarFile(in: InputStream)
      */
     val name = {
       val tail = string(0, 100);
-      if (!posixp || hdr(345) == 0) tail
+      if (!posixp || !hdr(345)) tail
       else {
 	val prefix = string(345, 155);
 	prefix + '/' + tail