int
nfs3svc_decode_renameargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_renameargs *args)
{
if (!(p = decode_fh(p, &args->ffh))
|| !(p = decode_filename(p, &args->fname, &args->flen))
|| !(p = decode_fh(p, &args->tfh))
|| !(p = decode_filename(p, &args->tname, &args->tlen)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfssvc_decode_renameargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd_renameargs *args = rqstp->rq_argp;
if (!(p = decode_fh(p, &args->ffh))
|| !(p = decode_filename(p, &args->fname, &args->flen))
|| !(p = decode_fh(p, &args->tfh))
|| !(p = decode_filename(p, &args->tname, &args->tlen)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_diropargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_diropargs *args)
{
if (!(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_createargs *args)
{
if (!(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len))
|| !(p = decode_sattr3(p, &args->attrs)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfssvc_decode_linkargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_linkargs *args)
{
if (!(p = decode_fh(p, &args->ffh))
|| !(p = decode_fh(p, &args->tfh))
|| !(p = decode_filename(p, &args->tname, &args->tlen)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfssvc_decode_createargs(struct svc_rqst *rqstp, __be32 *p,
struct nfsd_createargs *args)
{
if ( !(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
p = decode_sattr(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_diropargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd3_diropargs *args = rqstp->rq_argp;
if (!(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_symlinkargs *args)
{
if (!(p = decode_fh(p, &args->ffh))
|| !(p = decode_filename(p, &args->fname, &args->flen))
|| !(p = decode_sattr3(p, &args->attrs))
|| !(p = decode_pathname(p, &args->tname, &args->tlen)))
return 0;
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_mkdirargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd3_createargs *args = rqstp->rq_argp;
if (!(p = decode_fh(p, &args->fh)) ||
!(p = decode_filename(p, &args->name, &args->len)))
return 0;
p = decode_sattr3(p, &args->attrs);
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_mknodargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd3_mknodargs *args = rqstp->rq_argp;
if (!(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
args->ftype = ntohl(*p++);
if (args->ftype == NF3BLK || args->ftype == NF3CHR
|| args->ftype == NF3SOCK || args->ftype == NF3FIFO)
p = decode_sattr3(p, &args->attrs);
if (args->ftype == NF3BLK || args->ftype == NF3CHR) {
args->major = ntohl(*p++);
args->minor = ntohl(*p++);
}
return xdr_argsize_check(rqstp, p);
}
int
nfssvc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd_symlinkargs *args = rqstp->rq_argp;
char *base = (char *)p;
size_t xdrlen;
if ( !(p = decode_fh(p, &args->ffh))
|| !(p = decode_filename(p, &args->fname, &args->flen)))
return 0;
args->tlen = ntohl(*p++);
if (args->tlen == 0)
return 0;
args->first.iov_base = p;
args->first.iov_len = rqstp->rq_arg.head[0].iov_len;
args->first.iov_len -= (char *)p - base;
/* This request is never larger than a page. Therefore,
* transport will deliver either:
* 1. pathname in the pagelist -> sattr is in the tail.
* 2. everything in the head buffer -> sattr is in the head.
*/
if (rqstp->rq_arg.page_len) {
if (args->tlen != rqstp->rq_arg.page_len)
return 0;
p = rqstp->rq_arg.tail[0].iov_base;
} else {
xdrlen = XDR_QUADLEN(args->tlen);
if (xdrlen > args->first.iov_len - (8 * sizeof(__be32)))
return 0;
p += xdrlen;
}
decode_sattr(p, &args->attrs);
return 1;
}
int
nfs3svc_decode_createargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_createargs *args)
{
if (!(p = decode_fh(p, &args->fh))
|| !(p = decode_filename(p, &args->name, &args->len)))
return 0;
switch (args->createmode = ntohl(*p++)) {
case NFS3_CREATE_UNCHECKED:
case NFS3_CREATE_GUARDED:
if (!(p = decode_sattr3(p, &args->attrs)))
return 0;
break;
case NFS3_CREATE_EXCLUSIVE:
args->verf = p;
p += 2;
break;
default:
return 0;
}
return xdr_argsize_check(rqstp, p);
}
int
nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nfsd3_symlinkargs *args = rqstp->rq_argp;
char *base = (char *)p;
size_t dlen;
if (!(p = decode_fh(p, &args->ffh)) ||
!(p = decode_filename(p, &args->fname, &args->flen)))
return 0;
p = decode_sattr3(p, &args->attrs);
args->tlen = ntohl(*p++);
args->first.iov_base = p;
args->first.iov_len = rqstp->rq_arg.head[0].iov_len;
args->first.iov_len -= (char *)p - base;
dlen = args->first.iov_len + rqstp->rq_arg.page_len +
rqstp->rq_arg.tail[0].iov_len;
if (dlen < XDR_QUADLEN(args->tlen) << 2)
return 0;
return 1;
}
int main(int argc,char *argv[])
{
int i,j,k,arg=0,satno=0,satname=0,usecatalog=0,imode,m=10;
long norb;
char *datafile,*catalog,filename[32];
int ia[7]={0,0,0,0,0,0,0};
char line1[70],line2[70],desig[10];
double mjd,sma,perigee,apogee,xno;
float mag=0.0,dm;
xyz_t r,v;
FILE *file;
// Decode options
while ((arg=getopt(argc,argv,"d:c:i:n:m:"))!=-1) {
switch(arg) {
case 'd':
datafile=optarg;
break;
case 'c':
catalog=optarg;
usecatalog=1;
break;
case 'i':
satno=atoi(optarg);
break;
case 'n':
norb=atoi(optarg);
if (norb<0)
norb=0;
break;
case 'm':
mag=atof(optarg);
break;
default:
return 0;
}
}
// Magnitude offset
dm=5.0*log10(1000.0/40000.0);
// Reloop stderr
freopen("/tmp/stderr.txt","w",stderr);
// Decode filename
mjd=decode_filename(datafile,&satname);
// Read data
d=read_data(datafile,mjd);
// Write data
sprintf(filename,"%06d.xyz",satname);
file=fopen(filename,"w");
for (i=0;i<d.n;i++)
fprintf(file,"%lf %f %f %f\n",d.p[i].mjd,d.p[i].r.x,d.p[i].r.y,d.p[i].r.z);
fclose(file);
// Open elements
sprintf(filename,"%06d.tle",satname);
file=fopen(filename,"w");
// Estimate orbit
k=504;
if (usecatalog==0) {
// Set initial state vector
r.x=d.p[k].r.x;
r.y=d.p[k].r.y;
r.z=d.p[k].r.z;
v.x=(d.p[k+1].r.x-d.p[k].r.x)/60.0;
v.y=(d.p[k+1].r.y-d.p[k].r.y)/60.0;
v.z=(d.p[k+1].r.z-d.p[k].r.z)/60.0;
// Estimate initial orbit from elements
orb=rv2el(99999,d.p[k].mjd,r,v);
strcpy(orb.desig,"14999A");
orb.norb=norb;
} else {
// Read orbit
orb=read_tle(catalog,satno);
strcpy(desig,orb.desig);
// Propagate
imode=init_sgdp4(&orb);
imode=satpos_xyz(d.p[k].mjd+2400000.5,&r,&v);
orb=rv2el(orb.satno,d.p[k].mjd,r,v);
// orb.satno=99999;
// strcpy(orb.desig,"14999A");
strcpy(orb.desig,desig);
orb.norb=norb;
}
// Set flags
for (j=0;j<d.n;j++)
d.p[j].flag=0;
for (j=0;j<d.n;j++)
d.p[j].flag=1;
// Fit orbit
for (j=0;j<10;j++) {
if (j==1) ia[4]=1;
if (j==2) ia[1]=1;
if (j==3) ia[0]=1;
if (j==4) ia[5]=1;
if (j==5) ia[3]=1;
if (j==6) ia[2]=1;
if (j==7) ia[6]=1;
fit(orb,ia);
}
// Compute orbit size
xno=orb.rev*2.0*M_PI/XMNPDA;
sma=pow(XKE/xno,2.0/3.0)*XKMPER;
perigee=sma*(1.0-orb.ecc)-XKMPER;
apogee=sma*(1.0+orb.ecc)-XKMPER;
// Format TLE
format_tle(orb,line1,line2);
fprintf(file,"SO %6d %4.1f %7.0fkm x%7.0fkm\n%s\n%s\n# %d positions, %.1f km rms\n",satname,mag+dm,perigee,apogee,line1,line2,d.nsel,d.rms);
printf("SO %6d %4.1f %7.0fkm x%7.0fkm\n%s\n%s\n# %d positions, %.1f km rms\n",satname,mag+dm,perigee,apogee,line1,line2,d.nsel,d.rms);
// Close output file
fclose(file);
return 0;
}
static struct dirent *nfs_readdir(struct device_d *dev, DIR *dir)
{
struct nfs_dir *ndir = (void *)dir;
__be32 *p;
int ret;
int len;
struct xdr_stream *xdr = &ndir->stream;
again:
p = xdr_inline_decode(xdr, 4);
if (!p)
goto out_overflow;
if (*p++ == xdr_zero) {
p = xdr_inline_decode(xdr, 4);
if (!p)
goto out_overflow;
if (*p++ == xdr_zero) {
void *buf;
int len;
/*
* End of current entries, read next chunk.
*/
free(ndir->stream.buf);
buf = nfs_readdirattr_req(ndir->priv, &len, ndir->cookie);
if (!buf)
return NULL;
xdr_init(&ndir->stream, buf, len);
goto again;
}
return NULL; /* -EINVAL */
}
p = xdr_inline_decode(xdr, 4);
if (!p)
goto out_overflow;
ret = decode_filename(xdr, ndir->ent.d_name, &len);
if (ret)
return NULL;
/*
* The type (size and byte order) of nfscookie isn't defined in
* RFC 1094. This implementation assumes that it's an XDR uint32.
*/
p = xdr_inline_decode(xdr, 4);
if (!p)
goto out_overflow;
ndir->cookie = be32_to_cpup(p);
return &ndir->ent;
out_overflow:
printf("nfs: overflow error\n");
return NULL;
}
