diff options
Diffstat (limited to 'src/file_fob.c')
| -rw-r--r-- | src/file_fob.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/file_fob.c b/src/file_fob.c index 7ddaa93d..fbe172bf 100644 --- a/src/file_fob.c +++ b/src/file_fob.c @@ -48,12 +48,18 @@ static int header_check_fob(const unsigned char *buffer, const unsigned int buff { static const unsigned char sign_navnl[5] = {'N','A','V','N','L'}; static const unsigned char sign_navw[4] = {'N','A','V','W'}; - if(td_memmem(buffer, buffer_size, sign_navnl, sizeof(sign_navnl))==NULL && - td_memmem(buffer, buffer_size, sign_navw, sizeof(sign_navw))==NULL) + unsigned int tmp=0; + const unsigned char *pos1=(const unsigned char *)td_memmem(buffer, buffer_size, sign_navnl, sizeof(sign_navnl)); + const unsigned char *pos2=(const unsigned char *)td_memmem(buffer, buffer_size, sign_navw, sizeof(sign_navw)); + if(pos1==NULL && pos2==NULL) return 0; + if(pos1!=NULL) + tmp=pos1-buffer; + if(pos2!=NULL && pos2-buffer > tmp) + tmp=pos2-buffer; reset_file_recovery(file_recovery_new); file_recovery_new->extension=file_hint_fob.extension; - file_recovery_new->min_filesize=10; + file_recovery_new->min_filesize=tmp; return 1; } |