Import sources from 2011-03-30 iso image

1 files changed, 211 insertions, 0 deletions

diff --git a/sys/src/cmd/aux/flashfs/conv.c b/sys/src/cmd/aux/flashfs/conv.c
new file mode 100755
index 000000000..126ecc4da
--- /dev/null
+++ b/sys/src/cmd/aux/flashfs/conv.c
@@ -0,0 +1,211 @@
+#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);
+	}
+}