shithub: riscv

Info  •  Files  •  Log  •  Branches

dump9660: fix volume space size field (from sources, paure)

http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-119.pdf

page 19:

Volume Space Size (BP 81 to 88)
This field shall specify as a 32-bit number the number of Logical Blocks
in which the Volume Space of the volume is recorded.
This field shall be recorded according to 7.3.3.

--- a/sys/src/cmd/disk/9660/dump9660.c

+++ b/sys/src/cmd/disk/9660/dump9660.c

@@ -307,11 +307,10 @@

 		 * Patch in root directories.

 		 */

 		setroot(cd, cd->iso9660pvd, iroot.block, iroot.length);

-		setvolsize(cd, cd->iso9660pvd, (vlong)cd->nextblock * Blocksize);

+		setvolsize(cd, cd->iso9660pvd, cd->nextblock);

 		if(cd->flags & CDjoliet){

 			setroot(cd, cd->jolietsvd, jroot.block, jroot.length);

-			setvolsize(cd, cd->jolietsvd,

-				(vlong)cd->nextblock * Blocksize);

+			setvolsize(cd, cd->jolietsvd, cd->nextblock);

 		}

 	}else{

 		/*

@@ -341,11 +340,10 @@

 		 * Patch in new root directory entry.

 		 */

 		setroot(cd, cd->iso9660pvd, idumproot.block, idumproot.length);

-		setvolsize(cd, cd->iso9660pvd, (vlong)cd->nextblock * Blocksize);

+		setvolsize(cd, cd->iso9660pvd, cd->nextblock);

 		if(cd->flags & CDjoliet){

 			setroot(cd, cd->jolietsvd, jdumproot.block, jdumproot.length);

-			setvolsize(cd, cd->jolietsvd,

-				(vlong)cd->nextblock * Blocksize);

+			setvolsize(cd, cd->jolietsvd, cd->nextblock);

 		}

 	}

 	writepathtables(cd);