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#include <u.h>
#include <libc.h>
#include "flashfs.h"
int
convJ2M(Jrec *j, uchar *buff)
{
int m, n;
switch(j->type) {
case FT_create:
if(j->mode & (1 << 8)) {
if(j->mode & DMDIR)
j->type = FT_DCREATE1;
else
j->type = FT_FCREATE1;
}
else {
if(j->mode & DMDIR)
j->type = FT_DCREATE0;
else
j->type = FT_FCREATE0;
}
case FT_FCREATE0:
case FT_FCREATE1:
case FT_DCREATE0:
case FT_DCREATE1:
n = putc3(&buff[0], j->fnum);
goto create;
case FT_chmod:
if(j->mode & (1 << 8))
j->type = FT_CHMOD1;
else
j->type = FT_CHMOD0;
case FT_CHMOD0:
case FT_CHMOD1:
n = putc3(&buff[0], j->fnum);
buff[n++] = j->mode;
return n + putc3(&buff[n], j->mnum);
case FT_REMOVE:
return putc3(&buff[0], j->fnum);
case FT_WRITE:
n = putc3(&buff[0], j->fnum);
n += putc3(&buff[n], j->mtime);
n += putc3(&buff[n], j->offset);
return n + putc3(&buff[n], j->size - 1);
case FT_AWRITE:
n = putc3(&buff[0], j->fnum);
n += putc3(&buff[n], j->offset);
return n + putc3(&buff[n], j->size - 1);
case FT_trunc:
if(j->mode & (1 << 8))
j->type = FT_TRUNC1;
else
j->type = FT_TRUNC0;
case FT_TRUNC0:
case FT_TRUNC1:
n = putc3(&buff[0], j->fnum);
n += putc3(&buff[n], j->tnum);
goto create;
case FT_SUMMARY:
case FT_SUMBEG:
return putc3(&buff[0], j->seq);
case FT_SUMEND:
return 0;
create:
buff[n++] = j->mode;
n += putc3(&buff[n], j->mtime);
n += putc3(&buff[n], j->parent);
m = strlen(j->name);
memmove(&buff[n], j->name, m);
n += m;
buff[n++] = '\0';
return n;
}
return -1;
}
int
convM2J(Jrec *j, uchar *buff)
{
int m, n;
j->type = buff[0];
switch(j->type) {
case FT_FCREATE0:
case FT_FCREATE1:
case FT_DCREATE0:
case FT_DCREATE1:
n = 1 + getc3(&buff[1], &j->fnum);
j->mode = buff[n++];
switch(j->type) {
case FT_FCREATE0:
break;
case FT_FCREATE1:
j->mode |= 1 << 8;
break;
case FT_DCREATE0:
j->mode |= DMDIR;
break;
case FT_DCREATE1:
j->mode |= DMDIR | (1 << 8);
break;
}
j->type = FT_create;
goto create;
case FT_CHMOD0:
case FT_CHMOD1:
n = 1 + getc3(&buff[1], &j->fnum);
j->mode = buff[n++];
switch(j->type) {
case FT_CHMOD0:
break;
case FT_CHMOD1:
j->mode |= 1 << 8;
break;
}
j->type = FT_chmod;
return n + getc3(&buff[n], &j->mnum);
case FT_REMOVE:
return 1 + getc3(&buff[1], &j->fnum);
case FT_WRITE:
n = 1 + getc3(&buff[1], &j->fnum);
n += getc3(&buff[n], &j->mtime);
n += getc3(&buff[n], &j->offset);
n += getc3(&buff[n], &j->size);
j->size++;
return n;
case FT_AWRITE:
n = 1 + getc3(&buff[1], &j->fnum);
n += getc3(&buff[n], &j->offset);
n += getc3(&buff[n], &j->size);
j->size++;
return n;
case FT_TRUNC0:
case FT_TRUNC1:
n = 1 + getc3(&buff[1], &j->fnum);
n += getc3(&buff[n], &j->tnum);
j->mode = buff[n++];
switch(j->type) {
case FT_TRUNC0:
break;
case FT_TRUNC1:
j->mode |= 1 << 8;
break;
}
j->type = FT_trunc;
goto create;
case FT_SUMMARY:
case FT_SUMBEG:
return 1 + getc3(&buff[1], &j->seq);
case FT_SUMEND:
return 1;
create:
n += getc3(&buff[n], &j->mtime);
n += getc3(&buff[n], &j->parent);
memmove(j->name, &buff[n], MAXNSIZE+1);
j->name[MAXNSIZE+1] = '\0';
m = strlen(j->name);
if(m > MAXNSIZE)
return -1;
return n + m + 1;
}
return -1;
}
int
Jconv(Fmt *fp)
{
Jrec *j;
j = va_arg(fp->args, Jrec *);
switch(j->type) {
case FT_create:
case FT_FCREATE0:
case FT_FCREATE1:
case FT_DCREATE0:
case FT_DCREATE1:
return fmtprint(fp, "create f %ld p %ld t %lud m %ulo %s",
j->fnum, j->parent, j->mtime, j->mode, j->name);
case FT_chmod:
case FT_CHMOD0:
case FT_CHMOD1:
return fmtprint(fp, "chmod f %ld m %ulo #%ld",
j->fnum, j->mode, j->mnum);
case FT_REMOVE:
return fmtprint(fp, "remove f %ld", j->fnum);
case FT_WRITE:
return fmtprint(fp, "write f %ld z %ld o %ld t %uld",
j->fnum, j->size, j->offset, j->mtime);
case FT_AWRITE:
return fmtprint(fp, "awrite f %ld z %ld o %ld",
j->fnum, j->size, j->offset);
case FT_trunc:
case FT_TRUNC0:
case FT_TRUNC1:
return fmtprint(fp, "trunc f %ld o %ld p %ld t %ld m %ulo %s",
j->fnum, j->tnum, j->parent, j->mtime, j->mode, j->name);
case FT_SUMMARY:
return fmtprint(fp, "summary %ld",
j->seq);
case FT_SUMBEG:
return fmtprint(fp, "sumbeg %ld",
j->seq);
case FT_SUMEND:
return fmtprint(fp, "end");
default:
return fmtprint(fp, "?type %d", j->type);
}
}
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