File system access library.

1 files changed, 51 insertions, 0 deletions

diff --git a/src/libdiskfs/block.c b/src/libdiskfs/block.c
new file mode 100644
index 00000000..1c73ed34
--- /dev/null
+++ b/src/libdiskfs/block.c
@@ -0,0 +1,51 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <diskfs.h>
+
+void
+blockdump(Block *bb, char *desc)
+{
+	uchar *p, *ep;
+	int i;
+	Biobuf b;
+
+	Binit(&b, 2, OWRITE);
+
+	Bprint(&b, "%s\n", desc);
+
+	p = bb->data;
+	ep = bb->data + bb->len;
+
+	while(p < ep){
+		for(i=0; i<16; i++){
+			if(p+i < ep)
+				Bprint(&b, "%.2ux ", p[i]);
+			else
+				Bprint(&b, "   ");
+			if(i==7)
+				Bprint(&b, "- ");
+		}
+		Bprint(&b, " ");
+		for(i=0; i<16; i++){
+			if(p+i < ep)
+				Bprint(&b, "%c", p[i] >= 0x20 && p[i] <= 0x7F ? p[i] : '.');
+			else
+				Bprint(&b, " ");
+		}
+		p += 16;
+		Bprint(&b, "\n");
+	}
+}
+
+void
+blockput(Block *b)
+{
+	if(b == nil)
+		return;
+	if(!b->_close){
+		fprint(2, "no blockPut\n");
+		abort();	
+	}
+	(*b->_close)(b);
+}