CVS: blob/src/lib tar.c,1.3,1.4

[Stefan E. <se...@us...>]

Update of /cvsroot/blob/blob/src/lib
In directory usw-pr-cvs1:/tmp/cvs-serv8879

Modified Files:
	tar.c 
Log Message:
- use TAR_BLOCKSIZE instead of magic numbers
- made non-exported functions static
- don't export tar_io_conf, it's wrapped by io_configure()


Index: tar.c
===================================================================
RCS file: /cvsroot/blob/blob/src/lib/tar.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- tar.c	2 May 2002 15:28:54 -0000	1.3
+++ tar.c	3 May 2002 09:59:16 -0000	1.4
@@ -59,7 +59,6 @@
 
 static char module_version[] = "$Id$";
 
-
 /**********************************************************************
  * static functions
  */
@@ -73,9 +72,9 @@
 static int tar_from_oct( unsigned char *start, size_t digits, unsigned long *value );
 
 /* io driver stuff */
-int tar_io_conf( io_driver_t * io, void *conf );
-int tar_io_read( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io );
-int tar_io_write( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io );
+static int tar_io_conf( io_driver_t * io, void *conf );
+static int tar_io_read( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io );
+static int tar_io_write( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io );
 
 /**********************************************************************/
 /**********************************************************************/
@@ -90,7 +89,7 @@
 /**********************************************************************
  * io driver for tar archives
  */
-void init_tar_default_io( void )
+static void init_tar_default_io( void )
 {
 	int ret;
 	static io_driver_t	def_tar_io_driver;
@@ -112,8 +111,8 @@
 	if ( !io || !arch )
 		return -EINVAL;
 
-	DBG( 5, "%s: driver=%p, arch=%p\n", __FUNCTION__,
-	  driver, arch );
+	DBG( 5, "%s: io=%p, arch=%p\n", __FUNCTION__,
+	  io, arch );
 
 	io->conf = tar_io_conf;
 	io->read = tar_io_read;
@@ -130,7 +129,7 @@
 }
 
 /* the user gives us a filename in conf */
-int tar_io_conf( io_driver_t * io, void *conf )
+static int tar_io_conf( io_driver_t * io, void *conf )
 {
 	int ret;
 	char *name;
@@ -169,7 +168,7 @@
 	return 0;
 }
 
-int tar_io_read( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io )
+static int tar_io_read( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io )
 {
 	io_driver_t *child;
 	tar_arch_t *arch;
@@ -183,7 +182,7 @@
 	if ( !child )
 		return -EINVAL;
 
-	offset = arch->f_start_block*512;
+	offset = arch->f_start_block*TAR_BLOCKSIZE;
 
 	DBG( 3, "%s: dest=%p, src=%p(=%p), amount=%d, child=%p\n", __FUNCTION__,
 			dest, src, (char *)((u32)src + offset), amount, child );
@@ -191,7 +190,7 @@
 	return io_read(dest, (unsigned char *)(offset + (u32)src), amount, child );
 }
 
-int tar_io_write( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io )
+static int tar_io_write( unsigned char *dest, unsigned char *src, size_t amount, io_driver_t *io )
 {
 	return -EINVAL;
 }
@@ -366,7 +365,7 @@
 	if ( !size )
 		return -EINVAL;
 
-	ret = io_read( dest, (unsigned char*)(arch->f_start_block*512), arch->f_size, arch->io_driver );
+	ret = io_read( dest, (unsigned char*)(arch->f_start_block*TAR_BLOCKSIZE), arch->f_size, arch->io_driver );
 	if ( ret )
 		return ret;
 
@@ -383,7 +382,7 @@
 		return -EINVAL;
 
 	/* get header */
-	ret = io_read( arch->buffer, (unsigned char *)(arch->block*512), 512, arch->io_driver );
+	ret = io_read( arch->buffer, (unsigned char *)(arch->block*TAR_BLOCKSIZE), TAR_BLOCKSIZE, arch->io_driver );
 	if ( ret ) {
 		printf( "tar: cant get block: %d\n", ret );
 		goto DONE;
@@ -407,7 +406,7 @@
 	}
 
 	arch->f_start_block = arch->block;
-	arch->f_blocks = (arch->f_size/512) + (arch->f_size%512?1:0);
+	arch->f_blocks = (arch->f_size/TAR_BLOCKSIZE) + (arch->f_size%TAR_BLOCKSIZE?1:0);
 	printf( "tar: %s %ld bytes, %d blocks\n",  phdr->name,
 			arch->f_size, arch->f_blocks );