bool MDFNFILE::Open(const char *path, const FileExtensionSpecStruct *known_ext, const char *purpose, const bool suppress_notfound_pe)
{
void *t;
unzFile tz;
local_errno = 0;
error_code = MDFNFILE_EC_OTHER; // Set to 0 at the end if the function succeeds.
//f_data = (uint8 *)0xDEADBEEF;
// Try opening it as a zip file first
if((tz = unzOpen(path)))
{
char tempu[1024];
int errcode;
if((errcode = unzGoToFirstFile(tz)) != UNZ_OK)
{
MDFN_PrintError(_("Could not seek to first file in ZIP archive: %s"), unzErrorString(errcode));
unzClose(tz);
return(NULL);
}
if(known_ext)
{
bool FileFound = FALSE;
while(!FileFound)
{
size_t tempu_strlen;
const FileExtensionSpecStruct *ext_search = known_ext;
if((errcode = unzGetCurrentFileInfo(tz, 0, tempu, 1024, 0, 0, 0, 0)) != UNZ_OK)
{
MDFN_PrintError(_("Could not get file information in ZIP archive: %s"), unzErrorString(errcode));
unzClose(tz);
return(NULL);
}
tempu[1023] = 0;
tempu_strlen = strlen(tempu);
while(ext_search->extension && !FileFound)
{
size_t ttmeow = strlen(ext_search->extension);
if(tempu_strlen >= ttmeow)
{
if(!strcasecmp(tempu + tempu_strlen - ttmeow, ext_search->extension))
FileFound = TRUE;
}
ext_search++;
}
if(FileFound)
break;
if((errcode = unzGoToNextFile(tz)) != UNZ_OK)
{
if(errcode != UNZ_END_OF_LIST_OF_FILE)
{
MDFN_PrintError(_("Error seeking to next file in ZIP archive: %s"), unzErrorString(errcode));
unzClose(tz);
return(NULL);
}
if((errcode = unzGoToFirstFile(tz)) != UNZ_OK)
{
MDFN_PrintError(_("Could not seek to first file in ZIP archive: %s"), unzErrorString(errcode));
unzClose(tz);
return(NULL);
}
break;
}
} // end to while(!FileFound)
} // end to if(ext)
if((errcode = unzOpenCurrentFile(tz)) != UNZ_OK)
{
MDFN_PrintError(_("Could not open file in ZIP archive: %s"), unzErrorString(errcode));
unzClose(tz);
return(NULL);
}
if(!MakeMemWrap(tz, MDFN_FILETYPE_ZIP))
return(0);
char *ld = strrchr(tempu, '.');
f_ext = strdup(ld ? ld + 1 : "");
}
else // If it's not a zip file, handle it as...another type of file!
{
if(!(t = fopen(path,"rb")))
{
ErrnoHolder ene(errno);
local_errno = ene.Errno();
if(ene.Errno() == ENOENT)
{
local_errno = ene.Errno();
error_code = MDFNFILE_EC_NOTFOUND;
}
if(ene.Errno() != ENOENT || !suppress_notfound_pe)
MDFN_PrintError(_("Error opening \"%s\": %s"), path, ene.StrError());
return(0);
}
uint32 gzmagic;
gzmagic = ::fgetc((FILE *)t);
gzmagic |= ::fgetc((FILE *)t)<<8;
gzmagic |= ::fgetc((FILE *)t)<<16;
if(gzmagic!=0x088b1f) /* Not gzip... */
{
::fseek((FILE *)t,0,SEEK_SET);
if(!MakeMemWrap(t, 0))
return(0);
const char *ld = strrchr(path, '.');
f_ext = strdup(ld ? ld + 1 : "");
}
else /* Probably gzip */
{
int fd;
//fd = dup(fileno( (FILE *)t));
lseek(fd, 0, SEEK_SET);
if(!(t=gzdopen(fd, "rb")))
{
close(fd);
return(0);
}
if(!MakeMemWrap(t, 1))
{
gzclose(t);
return(0);
}
char *tmp_path = strdup(path);
char *ld = strrchr(tmp_path, '.');
if(ld && ld > tmp_path)
{
char *last_ld = ld;
*ld = 0;
ld = strrchr(tmp_path, '.');
if(!ld) { *last_ld = '.'; ld = last_ld; }
}
f_ext = strdup(ld ? ld + 1 : "");
free(tmp_path);
} // End gzip handling
} // End normal and gzip file handling else to zip
// FIXME: Handle extension fixing for cases where loaded filename is like "moo.moo/lalala"
error_code = 0;
return(TRUE);
}
FCEUFILE * FCEU_fopen(const char *path, const char *ipsfn, char *mode, char *ext)
{
FILE *ipsfile=0;
FCEUFILE *fceufp;
void *t;
if(strchr(mode,'r'))
ipsfile=FCEUD_UTF8fopen(ipsfn,"rb");
fceufp=(FCEUFILE *)malloc(sizeof(FCEUFILE));
{
unzFile tz;
if((tz=unzOpen(path))) // If it's not a zip file, use regular file handlers.
// Assuming file type by extension usually works,
// but I don't like it. :)
{
if(unzGoToFirstFile(tz)==UNZ_OK)
{
for(;;)
{
char tempu[512]; // Longer filenames might be possible, but I don't
// think people would name files that long in zip files...
unzGetCurrentFileInfo(tz,0,tempu,512,0,0,0,0);
tempu[511]=0;
if(strlen(tempu)>=4)
{
char *za=tempu+strlen(tempu)-4;
if(!ext)
{
if(!strcasecmp(za,".nes") || !strcasecmp(za,".fds") ||
!strcasecmp(za,".nsf") || !strcasecmp(za,".unf") ||
!strcasecmp(za,".nez"))
break;
}
else if(!strcasecmp(za,ext))
break;
}
if(strlen(tempu)>=5)
{
if(!strcasecmp(tempu+strlen(tempu)-5,".unif"))
break;
}
if(unzGoToNextFile(tz)!=UNZ_OK)
{
if(unzGoToFirstFile(tz)!=UNZ_OK) goto zpfail;
break;
}
}
if(unzOpenCurrentFile(tz)!=UNZ_OK)
goto zpfail;
}
else
{
zpfail:
free(fceufp);
unzClose(tz);
return 0;
}
if(!(fceufp->fp=MakeMemWrap(tz,2)))
{
free(fceufp);
return(0);
}
fceufp->type=2;
if(ipsfile)
ApplyIPS(ipsfile,(MEMWRAP *)fceufp->fp);
return(fceufp);
}
}
if((t=FCEUD_UTF8fopen(path,"rb")))
{
uint32 magic;
magic=fgetc((FILE *)t);
magic|=fgetc((FILE *)t)<<8;
magic|=fgetc((FILE *)t)<<16;
if(magic!=0x088b1f) /* Not gzip... */
fclose((FILE *)t);
else /* Probably gzip */
{
int fd;
fd = dup(fileno( (FILE *)t));
fclose(t);
lseek(fd, 0, SEEK_SET);
if((t=gzdopen(fd,mode)))
{
fceufp->type=1;
fceufp->fp=t;
if(ipsfile)
{
fceufp->fp=MakeMemWrap(t,1);
gzclose(t);
if(fceufp->fp)
{
free(fceufp);
return(0);
}
fceufp->type=3;
ApplyIPS(ipsfile,(MEMWRAP *)fceufp->fp);
}
return(fceufp);
}
close(fd);
}
}
if((t=FCEUD_UTF8fopen(path,mode)))
{
fseek((FILE *)t,0,SEEK_SET);
fceufp->type=0;
fceufp->fp=t;
if(ipsfile)
{
if(!(fceufp->fp=MakeMemWrap(t,0)))
{
free(fceufp);
return(0);
}
fceufp->type=3;
ApplyIPS(ipsfile,(MEMWRAP *)fceufp->fp);
}
return(fceufp);
}
free(fceufp);
return 0;
}
