int
sys_open(SyscallFrame *f)
{
char *fname;
long l;
int omode, fd;
File *file;
if (argstr(f, 0, &fname) < 0)
return -1;
if (arglong(f, 1, &l) < 0)
return -1;
omode = (long)l;
if (omode & (OEXEC | OTRUNC | OCEXEC | ORCLOSE)) {
// todo errstr
return -1;
}
if (omode & (OWRITE | ORDWR) && !canwrite(fname)) {
// todo errstr
return -1;
}
file = getfile(fname);
if (file == nil)
return -1;
file->omode = omode;
fd = allocfd(proc, file);
if (fd == -1) {
// todo errstr
releasefile(file);
return -1;
}
return fd;
}
int open_HLE()
{
IOManFile *file = NULL;
const char *name = Ra0;
s32 flags = a1;
u16 mode = a2;
if ((!g_GameStarted || EmuConfig.HostFs)
&& !strncmp(name, "host", 4) && name[4 + strspn(name + 4, "0123456789")] == ':')
{
if (!freefdcount())
{
v0 = -IOP_EMFILE;
pc = ra;
return 1;
}
int err = HostFile::open(&file, name, flags, mode);
if (err != 0 || !file)
{
if (err == 0) // ???
err = -IOP_EIO;
if (file) // ??????
file->close();
v0 = err;
}
else
{
v0 = allocfd(file);
if ((s32)v0 < 0)
file->close();
}
pc = ra;
return 1;
}
return 0;
}
int __elk_fdconsole_open(fdset_t *fdset)
{
// Create a file descriptor for the console.
sem_init(&vnode.v_wait, 0, 0);
return allocfd(&file);
}
