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#include <u.h>
#include <libc.h>
#include <thread.h>
#include <sunrpc.h>
#include <nfs3.h>
#include <diskfs.h>
int debug;
void
usage(void)
{
fprint(2, "usage: fsview fspartition cmd\n");
fprint(2, "cmd is:\n");
fprint(2, "\tcat file\n");
fprint(2, "\tls dir\n");
fprint(2, "\tstat file\n");
threadexitsall("usage");
}
void
printattr(Nfs3Attr *attr)
{
Fmt fmt;
char buf[256];
fmtfdinit(&fmt, 2, buf, sizeof buf);
nfs3attrprint(&fmt, attr);
fmtfdflush(&fmt);
fprint(2, "\n");
}
char buf[8192];
void
x(int ok)
{
if(ok != Nfs3Ok){
nfs3errstr(ok);
sysfatal("%r");
}
}
void
threadmain(int argc, char **argv)
{
char *p, *q;
u32int n;
Disk *disk;
Fsys *fsys;
Nfs3Handle h;
SunAuthUnix au;
Nfs3Attr attr;
u64int offset;
u1int eof;
uchar *data;
char *link;
ARGBEGIN{
case 'd':
debug = 1;
break;
default:
usage();
}ARGEND
if(argc != 3)
usage();
if((disk = diskopenfile(argv[0])) == nil)
sysfatal("diskopen: %r");
if((disk = diskcache(disk, 16384, 16)) == nil)
sysfatal("diskcache: %r");
if((fsys = fsysopen(disk)) == nil)
sysfatal("fsysopen: %r");
allowall = 1;
memset(&au, 0, sizeof au);
/* walk */
if(debug) fprint(2, "get root...");
x(fsysroot(fsys, &h));
p = argv[2];
while(*p){
while(*p == '/')
p++;
if(*p == 0)
break;
q = strchr(p, '/');
if(q){
*q = 0;
q++;
}else
q = "";
if(debug) fprint(2, "walk %s...", p);
x(fsyslookup(fsys, &au, &h, p, &h));
p = q;
}
if(debug) fprint(2, "getattr...");
x(fsysgetattr(fsys, &au, &h, &attr));
printattr(&attr);
/* do the op */
if(strcmp(argv[1], "cat") == 0){
switch(attr.type){
case Nfs3FileReg:
case Nfs3FileDir:
offset = 0;
for(;;){
x(fsysreadfile(fsys, &au, &h, sizeof buf, offset, &data, &n, &eof));
if(n){
write(1, data, n);
free(data);
offset += n;
}
if(eof)
break;
}
break;
case Nfs3FileSymlink:
x(fsysreadlink(fsys, &au, &h, &link));
print("%s\n", link);
break;
default:
print("cannot cat: not file, not link\n");
break;
}
}else if(strcmp(argv[1], "ls") == 0){
/* not implemented */
}else if(strcmp(argv[1], "stat") == 0){
/* already done */
}
threadexitsall(nil);
}
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