diff options
author | Dirk Engling <erdgeist@erdgeist.org> | 2014-01-18 06:46:27 +0100 |
---|---|---|
committer | Dirk Engling <erdgeist@erdgeist.org> | 2014-01-18 06:46:27 +0100 |
commit | d381a0c3b24c686df7d2abc5f69d0e81e9065479 (patch) | |
tree | d8ddf28eced3f0c042e8c20ec3a1ce761aa40090 /src | |
parent | 7f66b38b3dd8602b1532d0e6cda645f771474f94 (diff) |
Make extractor work with un-encrypted files
Diffstat (limited to 'src')
-rw-r--r-- | src/extractblocks_new.c | 10 |
1 files 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 ) | |||
89 | df[i] = mf[i] ^ mantra[i%4]; | 89 | df[i] = mf[i] ^ mantra[i%4]; |
90 | 90 | ||
91 | /* Get values from LHA header */ | 91 | /* Get values from LHA header */ |
92 | header_len = df[0]; | 92 | header_len = df[0] + 2; |
93 | filename_len = df[21]; | 93 | filename_len = df[21]; |
94 | 94 | ||
95 | /* Copy rest of header, so we can checksum */ | 95 | /* Copy rest of header, so we can checksum */ |
96 | for( i=enc_len; i<header_len+2; ++i) | 96 | for( i=enc_len; i<header_len; ++i) |
97 | df[i] = mf[i]; | 97 | df[i] = mf[i]; |
98 | 98 | ||
99 | /* Make up new sequental file name */ | 99 | /* Make up new sequental file name */ |
@@ -102,12 +102,12 @@ int main( int args, char **argv ) | |||
102 | memcpy( ((uint8_t*)df) + 22, filename, filename_len); | 102 | memcpy( ((uint8_t*)df) + 22, filename, filename_len); |
103 | 103 | ||
104 | /* Recalculate checksum with new file name */ | 104 | /* Recalculate checksum with new file name */ |
105 | df[1] = 0; for( i=2; i<header_len+2; ++i) df[1] += df[i]; | 105 | df[1] = 0; for( i=2; i<header_len; ++i) df[1] += df[i]; |
106 | 106 | ||
107 | /* Open file and dump our de-"crypted" header and then rest of file */ | 107 | /* Open file and dump our de-"crypted" header and then rest of file */ |
108 | i = open( filename, O_CREAT | O_TRUNC | O_WRONLY, 0644 ); | 108 | i = open( filename, O_CREAT | O_TRUNC | O_WRONLY, 0644 ); |
109 | write( i, df, enc_len ); | 109 | write( i, df, header_len ); |
110 | write( i, mf + enc_len, offset - oldoffset - enc_len ); | 110 | write( i, mf + header_len, offset - oldoffset - header_len ); |
111 | close( i ); | 111 | close( i ); |
112 | } | 112 | } |
113 | oldoffset = offset; | 113 | oldoffset = offset; |