Read 20 512-byte blocks at a time (like GNU tar).

1 files changed, 3 insertions, 3 deletions

diff --git a/archival/tar.c b/archival/tar.c
index 4702a5f8a..31443ee22 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -330,7 +330,7 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
         size_t  writeSize;
         size_t  readSize;
         size_t  actualWriteSz;
-        char    buffer[BUFSIZ];
+        char    buffer[20 * TAR_BLOCK_SIZE];
         size_t  size = header->size;
         int outFd=fileno(stdout);
 
@@ -354,9 +354,9 @@ tarExtractRegularFile(TarInfo *header, int extractFlag, int tostdoutFlag)
                 if ( size > sizeof(buffer) )
                         writeSize = readSize = sizeof(buffer);
                 else {
-                        int mod = size % 512;
+                        int mod = size % TAR_BLOCK_SIZE;
                         if ( mod != 0 )
-                                readSize = size + (512 - mod);
+                                readSize = size + (TAR_BLOCK_SIZE - mod);
                         else
                                 readSize = size;
                         writeSize = size;