92 lines
2.7 KiB
Diff
92 lines
2.7 KiB
Diff
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--- a/squashfs-tools/lzma_wrapper.c
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+++ b/squashfs-tools/lzma_wrapper.c
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@@ -20,6 +20,8 @@
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*/
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#include <LzmaLib.h>
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+#include <stdio.h>
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+#include "compressor.h"
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#define LZMA_HEADER_SIZE (LZMA_PROPS_SIZE + 8)
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@@ -30,9 +32,18 @@
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size_t props_size = LZMA_PROPS_SIZE,
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outlen = block_size - LZMA_HEADER_SIZE;
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int res;
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+ int lc;
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+ int lp;
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+ int pb;
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+
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+ if (!comp_args || sscanf(comp_args, "%d:%d:%d", &lc, &lp, &pb) != 3) {
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+ lc = 0;
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+ lp = 2;
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+ pb = 2;
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+ }
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res = LzmaCompress(d + LZMA_HEADER_SIZE, &outlen, s, size, d,
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- &props_size, 5, block_size, 3, 0, 2, 32, 1);
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+ &props_size, 5, block_size, lc, lp, pb, 32, 1);
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if(res == SZ_ERROR_OUTPUT_EOF) {
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/*
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--- a/squashfs-tools/compressor.c
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+++ b/squashfs-tools/compressor.c
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@@ -25,6 +25,7 @@
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#include "compressor.h"
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#include "squashfs_fs.h"
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+char *comp_args = NULL;
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extern int gzip_compress(void **, char *, char *, int, int, int *);
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extern int gzip_uncompress(char *, char *, int, int, int *);
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extern int lzma_compress(void **, char *, char *, int, int, int *);
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--- a/squashfs-tools/compressor.h
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+++ b/squashfs-tools/compressor.h
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@@ -31,3 +31,4 @@
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extern struct compressor *lookup_compressor(char *);
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extern struct compressor *lookup_compressor_id(int);
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extern void display_compressors(char *, char *);
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+extern char *comp_args;
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--- a/squashfs-tools/mksquashfs.c
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+++ b/squashfs-tools/mksquashfs.c
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@@ -4355,6 +4355,12 @@
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exit(1);
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}
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comp_name = argv[i];
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+ } else if(strcmp(argv[i], "-comp_args") == 0) {
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+ if(++i == argc) {
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+ ERROR("%s: -comp_args missing compression arguments\n", argv[0]);
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+ exit(1);
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+ }
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+ comp_args = argv[i];
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} else if(strcmp(argv[i], "-pf") == 0) {
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if(++i == argc) {
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ERROR("%s: -pf missing filename\n", argv[0]);
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@@ -4574,6 +4580,7 @@
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"[-e list of exclude\ndirs/files]\n", argv[0]);
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ERROR("\nFilesystem build options:\n");
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ERROR("-comp <comp>\t\tselect <comp> compression\n");
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+ ERROR("-comp_args <comp>\t\tselect compression arguments\n");
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ERROR("\t\t\tCompressors available:\n");
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display_compressors("\t\t\t", COMP_DEFAULT);
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ERROR("-b <block_size>\t\tset data block to "
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@@ -4736,7 +4743,8 @@
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else if(strcmp(argv[i], "-root-becomes") == 0 ||
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strcmp(argv[i], "-sort") == 0 ||
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strcmp(argv[i], "-pf") == 0 ||
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- strcmp(argv[i], "-comp") == 0)
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+ strcmp(argv[i], "-comp") == 0 ||
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+ strcmp(argv[i], "-comp_args") == 0)
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i++;
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if(i != argc) {
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@@ -4761,7 +4769,8 @@
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else if(strcmp(argv[i], "-root-becomes") == 0 ||
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strcmp(argv[i], "-ef") == 0 ||
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strcmp(argv[i], "-pf") == 0 ||
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- strcmp(argv[i], "-comp") == 0)
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+ strcmp(argv[i], "-comp") == 0 ||
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+ strcmp(argv[i], "-comp_args") == 0)
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i++;
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#ifdef SQUASHFS_TRACE
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