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hjfs: debug-chdeind and sync commands added

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This commit is contained in:
aiju 2012-10-03 18:10:56 +02:00
parent 87b66bade2
commit 0ebd85f72c
1 changed files with 47 additions and 0 deletions
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47
sys/src/cmd/hjfs/cons.c
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@ -63,6 +63,14 @@ walkpath(Chan *ch, char *path, char **cr)
return 1;
}
int
cmdsync(int, char **)
{
sync(1);
dprint("hjfs: sync\n");
return 0;
}
int
cmdhalt(int, char **)
{
@ -231,6 +239,43 @@ error:
return -1;
}
int
cmddebugchdeind(int, char **argv)
{
Chan *ch;
uchar *c;
Buf *b;
int loc, new;
loc = strtol(argv[2], nil, 0);
new = strtol(argv[3], nil, 0);
if(loc >= DENTRYSIZ)
return -9001;
ch = chanattach(fsmain, 0);
if(ch == nil)
return -1;
ch->uid = -1;
if(walkpath(ch, argv[1], nil) < 0)
goto error;
rlock(fsmain);
b = getbuf(fsmain->d, ch->loc->blk, TDENTRY, 0);
if(b == nil){
runlock(fsmain);
goto error;
}
c = (uchar *) &b->de[ch->loc->deind];
dprint("hjfs: loc %d, old value %#.2x, new value %#.2x\n", loc, c[loc], new);
c[loc] = new;
b->op |= BDELWRI;
putbuf(b);
runlock(fsmain);
chanclunk(ch);
return 0;
error:
chanclunk(ch);
return -1;
}
int
cmddebuggetblk(int argc, char **argv)
{
@ -285,12 +330,14 @@ Cmd cmds[] = {
{"create", 0, cmdcreate},
{"disallow", 1, cmddisallow},
{"dump", 1, cmddump},
{"sync", 1, cmdsync},
{"halt", 1, cmdhalt},
{"newuser", 0, cmdnewuser},
{"echo", 2, cmdecho},
{"df", 1, cmddf},
{"debug-deind", 2, cmddebugdeind},
{"debug-getblk", 0, cmddebuggetblk},
{"debug-chdeind", 4, cmddebugchdeind},
};