Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 01:40:16 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

jv3: Added protection against oversized disks.

Browse Source
This commit is contained in:
Robbbert 2021-04-11 12:05:19 +10:00
parent 8a96c7c662
commit 2b98e0f2de
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/lib/formats/trs80_dsk.cpp
View File

@ -141,6 +141,8 @@ int jv3_format::identify(io_generic *io, uint32_t form_factor, const std::vector
bool jv3_format::load(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image)
{
printf("Disk detected as JV3\n");fflush(stdout);
int drive_tracks, drive_sides;
image->get_maximal_geometry(drive_tracks, drive_sides);
uint32_t image_size = io_generic_size(io);
const uint32_t entries = 2901;
const uint32_t header_size = entries *3 +1;
@ -234,6 +236,14 @@ bool jv3_format::load(io_generic *io, uint32_t form_factor, const std::vector<ui
}
data_ptr += sector_size;
}
// Protect against oversized disk
if ((curr_track >= drive_tracks) || (curr_side >= drive_sides))
{
printf("Disk exceeds drive capabilities\n");
return false;
}
//printf("Side %d, Track %d, %s density\n",curr_side,curr_track,density ? "Double" : "Single");
if (density)
{