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Fix sprites/skins load overflow

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This commit is contained in:
Denis Pauk 2023-05-24 23:28:17 +03:00
parent bd4c07f6ea
commit 57a1efa727
1 changed files with 76 additions and 13 deletions
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89
src/files/models.c
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@ -685,8 +685,23 @@ Mod_LoadMD2 (const char *mod_name, const void *buffer, int modfilelen,
// register all skins
memcpy ((char *)pheader + pheader->ofs_skins, (char *)pinmodel + pheader->ofs_skins,
pheader->num_skins*MAX_SKINNAME);
for (i=0 ; i<pheader->num_skins ; i++)
if (pheader->num_skins > MAX_MD2SKINS)
{
R_Printf(PRINT_ALL, "%s has too many skins (%i > %i), "
"extra skins will be ignored\n",
mod_name, pheader->num_skins, MAX_MD2SKINS);
}
// Load in our skins.
for (i=0; i < pheader->num_skins; i++)
{
if (i >= MAX_MD2SKINS)
{
/* extra skins are ignored */
continue;
}
skins[i] = find_image((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME,
it_skin);
}
@ -972,9 +987,22 @@ Mod_LoadFlexModel(const char *mod_name, const void *buffer, int modfilelen,
src += size;
}
// Load in our skins.
for (i=0 ; i<pheader->num_skins ; i++)
if (pheader->num_skins > MAX_MD2SKINS)
{
R_Printf(PRINT_ALL, "%s has too many skins (%i > %i), "
"extra skins will be ignored\n",
mod_name, pheader->num_skins, MAX_MD2SKINS);
}
// Load in our skins.
for (i=0; i < pheader->num_skins; i++)
{
if (i >= MAX_MD2SKINS)
{
/* extra skins are ignored */
continue;
}
skins[i] = find_image((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME,
it_skin);
}
@ -996,9 +1024,9 @@ Mod_LoadDKMModel(const char *mod_name, const void *buffer, int modfilelen,
vec3_t mins, vec3_t maxs, struct image_s **skins, findimage_t find_image,
modtype_t *type)
{
dmdl_t dmdlheader, *pheader;
dmdl_t dmdlheader, *pheader = NULL;
dkm_header_t header;
void *extradata;
void *extradata = NULL;
int i;
if (sizeof(dkm_header_t) > modfilelen)
@ -1087,9 +1115,22 @@ Mod_LoadDKMModel(const char *mod_name, const void *buffer, int modfilelen,
Mod_LoadDkmTriangleList (pheader,
(dkmtriangle_t *)((byte *)buffer + header.ofs_tris));
// Load in our skins.
for (i=0 ; i<pheader->num_skins ; i++)
if (pheader->num_skins > MAX_MD2SKINS)
{
R_Printf(PRINT_ALL, "%s has too many skins (%i > %i), "
"extra skins will be ignored\n",
mod_name, pheader->num_skins, MAX_MD2SKINS);
}
// Load in our skins.
for (i=0; i < pheader->num_skins; i++)
{
if (i >= MAX_MD2SKINS)
{
/* extra skins are ignored */
continue;
}
skins[i] = find_image((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME,
it_skin);
}
@ -1179,9 +1220,9 @@ Mod_LoadSP2 (const char *mod_name, const void *buffer, int modfilelen,
if (sprout->numframes > MAX_MD2SKINS)
{
R_Printf(PRINT_ALL, "%s has too many frames (%i > %i)",
R_Printf(PRINT_ALL, "%s has too many sprites (%i > %i), "
"extra sprites will be ignored\n",
mod_name, sprout->numframes, MAX_MD2SKINS);
return NULL;
}
/* byte swap everything */
@ -1193,6 +1234,12 @@ Mod_LoadSP2 (const char *mod_name, const void *buffer, int modfilelen,
sprout->frames[i].origin_y = LittleLong(sprin->frames[i].origin_y);
memcpy(sprout->frames[i].name, sprin->frames[i].name, MAX_SKINNAME);
if (i >= MAX_MD2SKINS)
{
/* extra sprites are ignored */
continue;
}
skins[i] = find_image((char *)sprout->frames[i].name, it_sprite);
if (!skins[i])
{
@ -1301,10 +1348,17 @@ Mod_ReLoadSkins(struct image_s **skins, findimage_t find_image, void *extradata,
if (type == mod_sprite)
{
dsprite_t *sprout;
int i;
int i, numframes;
sprout = (dsprite_t *)extradata;
for (i=0 ; i<sprout->numframes ; i++)
numframes = sprout->numframes;
if (numframes > MAX_MD2SKINS)
{
/* extra skins are ignored */
numframes = MAX_MD2SKINS;
}
for (i=0; i < numframes; i++)
{
skins[i] = find_image(sprout->frames[i].name, it_sprite);
}
@ -1313,11 +1367,20 @@ Mod_ReLoadSkins(struct image_s **skins, findimage_t find_image, void *extradata,
else if (type == mod_alias)
{
dmdl_t *pheader;
int i;
int i, num_skins;
pheader = (dmdl_t *)extradata;
for (i=0 ; i<pheader->num_skins ; i++)
num_skins = pheader->num_skins;
if (num_skins > MAX_MD2SKINS)
{
/* extra skins are ignored */
num_skins = MAX_MD2SKINS;
}
for (i=0; i < num_skins; i++)
{
skins[i] = find_image ((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME, it_skin);
}
return pheader->num_frames;
}
/* Unknow format, no images associated with it */