From d381a0c3b24c686df7d2abc5f69d0e81e9065479 Mon Sep 17 00:00:00 2001
From: Dirk Engling <erdgeist@erdgeist.org>
Date: Sat, 18 Jan 2014 06:46:27 +0100
Subject: Make extractor work with un-encrypted files
---
src/extractblocks_new.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/extractblocks_new.c b/src/extractblocks_new.c
index 53c16f2..c3fb899 100644
--- a/src/extractblocks_new.c
+++ b/src/extractblocks_new.c
@@ -89,11 +89,11 @@ int main( int args, char **argv )
df[i] = mf[i] ^ mantra[i%4];
/* Get values from LHA header */
- header_len = df[0];
+ header_len = df[0] + 2;
filename_len = df[21];
/* Copy rest of header, so we can checksum */
- for( i=enc_len; i<header_len+2; ++i)
+ for( i=enc_len; i<header_len; ++i)
df[i] = mf[i];
/* Make up new sequental file name */
@@ -102,12 +102,12 @@ int main( int args, char **argv )
memcpy( ((uint8_t*)df) + 22, filename, filename_len);
/* Recalculate checksum with new file name */
- df[1] = 0; for( i=2; i<header_len+2; ++i) df[1] += df[i];
+ df[1] = 0; for( i=2; i<header_len; ++i) df[1] += df[i];
/* Open file and dump our de-"crypted" header and then rest of file */
i = open( filename, O_CREAT | O_TRUNC | O_WRONLY, 0644 );
- write( i, df, enc_len );
- write( i, mf + enc_len, offset - oldoffset - enc_len );
+ write( i, df, header_len );
+ write( i, mf + header_len, offset - oldoffset - header_len );
close( i );
}
oldoffset = offset;
--
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