From 90c723bb710897a6451175e1cae3292f2a1e3d59 Mon Sep 17 00:00:00 2001
From: Michael Gernoth <michael@gernoth.net>
Date: Sat, 31 Jan 2009 02:50:07 +0100
Subject: [PATCH] extracting works now correctly :-) but the checksum-function
 is still broken...

---
 Makefile |  2 +-
 rsb-lz.c | 79 ++++++++++++++++++++++++++------------------------------
 2 files changed, 37 insertions(+), 44 deletions(-)

diff --git a/Makefile b/Makefile
index 6fbd0b7..cac4a66 100644
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,6 @@ rsb-crc.o: rsb-crc.c rsb-crc.h
 rsb-lz.o: rsb-lz.c rsb-lz.h
 
 clean:
-	rm -f firmware firmware.o rsb-crc.o
+	rm -f firmware firmware.o rsb-crc.o rsb-lz.o
 
 .PHONY: all clean
diff --git a/rsb-lz.c b/rsb-lz.c
index ddd9a53..f5a84fa 100644
--- a/rsb-lz.c
+++ b/rsb-lz.c
@@ -426,19 +426,13 @@
  * 59b80:	46335053 	undefined
  */
 
-void fn_59560(unsigned int arg1)
-{
-	fprintf(stderr,"%s\n", __func__);
-}
-
-void fn_59578(unsigned int arg1, unsigned int arg2, unsigned int arg3, unsigned int arg4)
-{
-	fprintf(stderr,"%s\n", __func__);
-}
+static unsigned char *outbuf = NULL;
 
 void fn_59788(const char *fname)
 {
 	fprintf(stderr,"%s: error extracting...\n", fname);
+	fprintf(stderr,"outbuf at: %p\n", outbuf);
+	fprintf(stderr,"%s\n", outbuf);
 	exit(1);
 }
 
@@ -449,7 +443,7 @@ struct s_59b78 {
 	unsigned char x; /* 9 */
 };
 
-unsigned int fn_597c8(struct s_59b78 *r6_data)
+unsigned char fn_597c8(struct s_59b78 *r6_data)
 {
 	unsigned char *r0;
 	unsigned char *r1;
@@ -472,8 +466,8 @@ unsigned int fn_597c8(struct s_59b78 *r6_data)
 
 unsigned int fn_59848(struct s_59b78 *r6_data)
 {
-	unsigned int r1;
-	unsigned int r2;
+	unsigned char r1;
+	unsigned char r2;
 	unsigned int r5;
 
 	r1 = r6_data->y;
@@ -488,10 +482,11 @@ unsigned int fn_59848(struct s_59b78 *r6_data)
 	r1 = r6_data->y;
 	r1 = r1 >> 1;
 	r6_data->y = r1;
-	if (r1 == 0)
+	if (r1 == 0) {
 		r1 = 0x80;
-	
-	r6_data->y = r1;
+		r6_data->y = r1;
+	}
+
 	if (r5 == 0)
 		return 0;
 
@@ -509,12 +504,12 @@ unsigned int fn_598b4(struct s_59b78 *r11_data, unsigned int r10_arg2)
 	r6 = 1 << r1;
 
 	r7 = 0;
-	do {
+	while (r6 != 0) {
 		r1 = r11_data->y;
 		if (r1 == 0x80) {
 			r1 = fn_597c8(r11_data);
+			r11_data->x = r1;
 		}
-		r11_data->x = r1;
 		r1 = r11_data->y;
 		r2 = r11_data->x;
 		r1 = r1 & r2;
@@ -531,7 +526,7 @@ unsigned int fn_598b4(struct s_59b78 *r11_data, unsigned int r10_arg2)
 		if(r1 == 0) {
 			r11_data->y = 0x80;
 		}
-	} while (r6 != 0);
+	}
 
 	return r7;
 }
@@ -555,57 +550,56 @@ void fn_5980c(unsigned int arg1, unsigned int mem[])
 	mem[0] = (unsigned int)r1;
 }
 
-void fn_5993c(struct s_59b78 *data, unsigned int mem[])
+void fn_5993c(struct s_59b78 *r10_data, unsigned int r13_mem[])
 {
 	unsigned int r5;
 	unsigned int r2;
-	unsigned int r4;
+	unsigned char r4;
 	unsigned int r6;
 	unsigned int r7;
 	unsigned int r11;
-	unsigned char arr_59b64[1024];
+	unsigned char arr_59b64[2048];
 
 	r5 = 1;
 
-	do {
-		do {
-			r2 = fn_59848(data);
-			printf("r2: 0x%x\n", r2);
+	while (1) {
+		while (1) {
+			r2 = fn_59848(r10_data);
 			if (r2 == 0)
 				break;
 
-			r2 = fn_598b4(data, 8) & 0xff;
+			r2 = fn_598b4(r10_data, 8) & 0xff;
 			r4 = r2;
 
-			fn_5980c(r4, mem);
+			fn_5980c(r4, r13_mem);
 			arr_59b64[r5] = r4 & 0xff;
 			r2 = r5 + 1;
 			r2 = r2 << 22;
 			r2 = r2 >> 22;
 			r5 = r2;
-		} while(1);
+		}
 
-		r11 = fn_598b4(data, 0x0a);
+		r11 = fn_598b4(r10_data, 0x0a);
 		if(r11 == 0)
 			return;
 
-		r2 = fn_598b4(data, 0x04);
+		r2 = fn_598b4(r10_data, 0x04);
 		r7 = r2 + 1;
 		r6 = 0;
-		do {
+		while (r6 <= r7) {
 			r2 = r6 + r11;
 			r2 = r2 << 22;
 			r2 = r2 >> 22;
 			r4 = arr_59b64[r2];
-			fn_5980c(r4, mem);
-			arr_59b64[r5] = r4 & 0xff;
+			fn_5980c(r4, r13_mem);
+			arr_59b64[r5] = r4;
 			r2 = r5 + 1;
 			r2 = r2 << 22;
 			r2 = r2 >> 22;
 			r5 = r2;
 			r6++;
-		} while(r6 <= r7);
-	} while(1);
+		}
+	}
 }
 
 unsigned int crc_check_59684(unsigned char *arg1, unsigned int arg2, unsigned int magic)
@@ -655,26 +649,23 @@ void extract_lz_file(unsigned char *buf, unsigned char *name)
 	struct s_59b78 struct1;
 	unsigned int arr_59b7c[1024];
 
-	r7 = malloc(1024*1024*1024);
-	r10 = r7 + (1024*1024*1024);
+	r7 = malloc(4*1024*1024);
+	r10 = r7 + (4*1024*1024);
 
 	if (r7 == NULL) {
 		perror("malloc");
 		exit(1);
 	}
 
-	fn_59578(0, 0, 0x3f, 0x33);
-	fn_59578(4, 0x10000000, 0x33, 0x366);
-	fn_59578(5, 0x14000000, 0x1b, 0x733);
-	fn_59578(7, 0xc0000000, 0x3b, 0x33);
-	fn_59560(0x1005);
+	bzero(r7, 4*1024*1024);
+	outbuf = r7;
 
 	if (*((unsigned int*)r11) != LZ_MAGIC)
 		fn_59788(__func__);
 
 	r3 = r11 + 4;
 	r5 = *((unsigned int*)r3);
-	printf(", Length: %d\n", r5);
+	printf(", length: %d\n", r5);
 
 	r3 = r7 + r5;
 	if (r3 > r10)
@@ -715,6 +706,8 @@ void search_lz_sections(unsigned char *fw, int len)
 			j--;
 			while (j > fw) {
 				if (*j == 0x00) {
+					if (strncmp("/web", (char*)(j+1), 4))
+						break;
 					printf("%s", j+1);
 					extract_lz_file(fw + i, j+1);
 					break;
-- 
2.39.2