wok rev 17996

fusecloop: adjust size
author Pascal Bellard <pascal.bellard@slitaz.org>
date Fri Apr 24 18:41:32 2015 +0200 (2015-04-24)
parents 0f14c2f0b7d9
children 153fb93a12da
files fusecloop/stuff/fusecloop.u
line diff
     1.1 --- a/fusecloop/stuff/fusecloop.u	Fri Apr 24 16:39:12 2015 +0300
     1.2 +++ b/fusecloop/stuff/fusecloop.u	Fri Apr 24 18:41:32 2015 +0200
     1.3 @@ -155,7 +155,7 @@
     1.4   	int handle;
     1.5   	struct cloop_head head;
     1.6   	unsigned int i;
     1.7 -+	unsigned long num_blocks, block_size, zblock_maxsize;
     1.8 ++	unsigned long num_blocks, block_size, zblock_maxsize, lastlen = 0;
     1.9   	unsigned char *buffer, *clear_buffer;
    1.10  +	struct block_info *offsets;
    1.11   
    1.12 @@ -171,7 +171,7 @@
    1.13   	if (handle < 0) {
    1.14   		perror("Opening compressed file\n");
    1.15   		exit(1);
    1.16 -@@ -24,44 +28,99 @@
    1.17 +@@ -24,44 +28,100 @@
    1.18   		exit(1);
    1.19   	}
    1.20   
    1.21 @@ -209,6 +209,7 @@
    1.22  +		table_size = ntohl(tail.table_size);
    1.23  +		table = malloc(table_size);
    1.24  +		len = i = num_blocks * (ntohl(tail.index_size) & 255);
    1.25 ++		lastlen = ntohl(tail.index_size) / 256;
    1.26  +		offsets = malloc(num_blocks * sizeof(*offsets));
    1.27  +		if (!table || !offsets || 
    1.28  +		    read(handle, table, table_size) != table_size ||
    1.29 @@ -297,7 +298,7 @@
    1.30   		if (i == 3) {
    1.31   			fprintf(stderr,
    1.32   				"Block head:%02X%02X%02X%02X%02X%02X%02X%02X\n",
    1.33 -@@ -105,12 +164,12 @@
    1.34 +@@ -105,12 +165,12 @@
    1.35   			fprintf(stderr, "Uncomp: unknown error %u\n", i);
    1.36   			exit(1);
    1.37   		}
    1.38 @@ -310,7 +311,7 @@
    1.39   			exit(1);
    1.40   		}
    1.41  -		write(STDOUT_FILENO, clear_buffer, ntohl(head.block_size));
    1.42 -+		write(STDOUT_FILENO, clear_buffer, block_size);
    1.43 ++		write(STDOUT_FILENO, clear_buffer, (lastlen != 0 && (i+1) == num_blocks) ? lastlen : block_size);
    1.44   	}
    1.45   	return 0;
    1.46   }
    1.47 @@ -343,7 +344,7 @@
    1.48  
    1.49  --- create_compressed_fs.c
    1.50  +++ create_compressed_fs.c
    1.51 -@@ -0,0 +1,147 @@
    1.52 +@@ -0,0 +1,149 @@
    1.53  +#ifdef FIND_BEST_COMPRESSION
    1.54  +#include <compress.h>
    1.55  +extern "C" {
    1.56 @@ -429,7 +430,7 @@
    1.57  +	unsigned char *compressed, *uncompressed;
    1.58  +	unsigned long *index;
    1.59  +	int n, indexmax, zlenmax;
    1.60 -+	unsigned long len, pos;
    1.61 ++	unsigned long lastlen, len, pos;
    1.62  +	static char padding[512];
    1.63  +	
    1.64  +	if (argc > 1) {
    1.65 @@ -455,7 +456,8 @@
    1.66  +	if (!compressed || !uncompressed || !index)
    1.67  +		quit("Malloc failed");
    1.68  +	
    1.69 -+	for (n = 0; readblock(uncompressed, block_size); n++) {
    1.70 ++	for (n = 0; (len = readblock(uncompressed, block_size)) != 0; n++) {
    1.71 ++		if (len) lastlen = len;
    1.72  +		len = zlenmax;
    1.73  +		if (compress2(compressed, &len, uncompressed, block_size, 
    1.74  +				Z_BEST_COMPRESSION) != Z_OK)
    1.75 @@ -472,7 +474,8 @@
    1.76  +		}
    1.77  +		index[n] = ntohl(len);
    1.78  +	}
    1.79 -+	tail.index_size = ntohl(sizeof(*index));
    1.80 ++	if (block_size >= 0x1000000) lastlen = 0;
    1.81 ++	tail.index_size = ntohl(sizeof(*index) + 256*(lastlen % 0xFFffFF));
    1.82  +	tail.num_blocks = ntohl(n);
    1.83  +	n *= sizeof(*index);
    1.84  +	len = n + n/1000 + 12;