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PhotoRec: stricter check for .au

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This commit is contained in:
Christophe Grenier 2014-07-21 21:03:05 +02:00
parent e6fb56cbd1
commit be4ab36b9c
1 changed files with 12 additions and 5 deletions
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15
src/file_au.c
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@ -66,18 +66,25 @@ static int header_check_au(const unsigned char *buffer, const unsigned int buffe
{ {
const struct header_au_s *au=(const struct header_au_s *)buffer; const struct header_au_s *au=(const struct header_au_s *)buffer;
if(memcmp(buffer,au_header,sizeof(au_header))==0 && if(memcmp(buffer,au_header,sizeof(au_header))==0 &&
be32(au->encoding)<=27 && be32(au->offset) >= sizeof(struct header_au_s) &&
be32(au->channels)<=256) be32(au->encoding)>0 && be32(au->encoding)<=27 &&
be32(au->channels)>0 && be32(au->channels)<=256)
{ {
if(be32(au->size)!=0xffffffff)
{
if(be32(au->offset)+be32(au->size) < 111)
return 0;
reset_file_recovery(file_recovery_new); reset_file_recovery(file_recovery_new);
file_recovery_new->min_filesize=111; file_recovery_new->min_filesize=111;
file_recovery_new->extension=file_hint_au.extension; file_recovery_new->extension=file_hint_au.extension;
if(be32(au->size)!=0xffffffff)
{
file_recovery_new->calculated_file_size=be32(au->offset)+be32(au->size); file_recovery_new->calculated_file_size=be32(au->offset)+be32(au->size);
file_recovery_new->data_check=&data_check_size; file_recovery_new->data_check=&data_check_size;
file_recovery_new->file_check=&file_check_size; file_recovery_new->file_check=&file_check_size;
return 1;
} }
reset_file_recovery(file_recovery_new);
file_recovery_new->min_filesize=111;
file_recovery_new->extension=file_hint_au.extension;
return 1; return 1;
} }
return 0; return 0;