int osdcmd_fileinfo(const osdfuncparm_t *parm)
{
unsigned long crc, length;
int i,j;
char buf[256];
if (parm->numparms != 1) return OSDCMD_SHOWHELP;
if ((i = kopen4load((char *)parm->parms[0],0)) < 0) {
OSD_Printf("fileinfo: File \"%s\" does not exist.\n", parm->parms[0]);
return OSDCMD_OK;
}
length = kfilelength(i);
crc32init(&crc);
do {
j = kread(i,buf,256);
crc32block(&crc,buf,j);
} while (j == 256);
crc32finish(&crc);
kclose(i);
OSD_Printf("fileinfo: %s\n"
" File size: %d\n"
" CRC-32: %08X\n",
parm->parms[0], length, crc);
return OSDCMD_OK;
}
void calcHash( FILE *f ) {
unsigned long var;
crc32init( &var );
while ( !feof( f ) ) {
unsigned char c;
fread( (void*)&c, 1, 1, f );
crc32block( &var, &c, 1 );
}
fseek( f, 0, 0 );
char s[30];
sprintf( s, "CRC32: %x", crc32finish( &var ) );
OutputDebugStringA( s );
}
int32_t ScanGroups(void)
{
CACHE1D_FIND_REC *srch, *sidx;
struct grpcache *fg, *fgg;
struct grpfile *grp;
char *fn;
struct Bstat st;
#define BUFFER_SIZE (1024 * 1024 * 8)
uint8_t *buf = (uint8_t *)Bmalloc(BUFFER_SIZE);
if (!buf)
{
initprintf("Error allocating %d byte buffer to scan GRPs!\n", BUFFER_SIZE);
return 0;
}
initprintf("Searching for game data...\n");
LoadGameList();
//LoadGroupsCache(); SB: disabled to match local
srch = klistpath("/", "*.grp", CACHE1D_FIND_FILE);
for (sidx = srch; sidx; sidx = sidx->next)
{
for (fg = grpcache; fg; fg = fg->next)
{
if (!Bstrcmp(fg->name, sidx->name)) break;
}
if (fg)
{
if (findfrompath(sidx->name, &fn)) continue; // failed to resolve the filename
if (Bstat(fn, &st))
{
Bfree(fn);
continue;
} // failed to stat the file
Bfree(fn);
if (fg->size == st.st_size && fg->mtime == st.st_mtime)
{
grp = (struct grpfile *)Bcalloc(1, sizeof(struct grpfile));
grp->name = Bstrdup(sidx->name);
grp->crcval = fg->crcval;
grp->size = fg->size;
grp->next = foundgrps;
foundgrps = grp;
fgg = (struct grpcache *)Bcalloc(1, sizeof(struct grpcache));
strcpy(fgg->name, fg->name);
fgg->size = fg->size;
fgg->mtime = fg->mtime;
fgg->crcval = fg->crcval;
fgg->next = usedgrpcache;
usedgrpcache = fgg;
continue;
}
}
{
int32_t b, fh;
int32_t crcval;
fh = openfrompath(sidx->name, BO_RDONLY|BO_BINARY, BS_IREAD);
if (fh < 0) continue;
if (Bfstat(fh, &st)) continue;
initprintf(" Checksumming %s...", sidx->name);
crc32init((uint32_t *)&crcval);
do
{
b = read(fh, buf, BUFFER_SIZE);
if (b > 0) crc32block((uint32_t *)&crcval, (uint8_t *)buf, b);
}
while (b == BUFFER_SIZE);
crc32finish((uint32_t *)&crcval);
close(fh);
initprintf(" Done\n");
grp = (struct grpfile *)Bcalloc(1, sizeof(struct grpfile));
grp->name = Bstrdup(sidx->name);
grp->crcval = crcval;
grp->size = st.st_size;
grp->next = foundgrps;
foundgrps = grp;
fgg = (struct grpcache *)Bcalloc(1, sizeof(struct grpcache));
Bstrncpy(fgg->name, sidx->name, BMAX_PATH);
fgg->size = st.st_size;
fgg->mtime = st.st_mtime;
fgg->crcval = crcval;
fgg->next = usedgrpcache;
usedgrpcache = fgg;
}
}
klistfree(srch);
FreeGroupsCache();
for (grp = foundgrps; grp; /*grp=grp->next*/)
{
struct grpfile *igrp;
for (igrp = listgrps; igrp; igrp=igrp->next)
if (grp->crcval == igrp->crcval) break;
if (igrp == NULL)
{
grp = grp->next;
continue;
}
if (igrp->dependency)
{
struct grpfile *depgrp;
//initprintf("found grp with dep\n");
for (depgrp = foundgrps; depgrp; depgrp=depgrp->next)
if (depgrp->crcval == igrp->dependency) break;
if (depgrp == NULL || depgrp->crcval != igrp->dependency) // couldn't find dependency
{
//initprintf("removing %s\n", grp->name);
RemoveGroup(igrp->crcval);
grp = foundgrps;
continue;
}
}
if (igrp->game && !grp->game)
grp->game = igrp->game;
grp=grp->next;
}
if (usedgrpcache)
{
int32_t i = 0;
FILE *fp;
fp = fopen(GRPCACHEFILE, "wt");
if (fp)
{
for (fg = usedgrpcache; fg; fg=fgg)
{
fgg = fg->next;
fprintf(fp, "\"%s\" %d %d %d\n", fg->name, fg->size, fg->mtime, fg->crcval);
Bfree(fg);
i++;
}
fclose(fp);
}
// initprintf("Found %d recognized GRP %s.\n",i,i>1?"files":"file");
Bfree(buf);
return 0;
}
initprintf("Found no recognized game data!\n");
Bfree(buf);
return 0;
}
