+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include "rsb-crc.h"
+#include "rsb-lz.h"
+#include "filesystem.h"
+
/* TODO: IMPLEMET THIS! */
/* Probably very broken lzw implementation by Agilent:
*
+ * 59508: e3a00078 mov r0, #120 ; 0x78
+ * 5950c: ee010f10 mcr 15, 0, r0, cr1, cr0, {0}
+ * 59510: e3a00000 mov r0, #0 ; 0x0
+ * 59514: ee070f15 mcr 15, 0, r0, cr7, cr5, {0}
+ * 59518: ee070f16 mcr 15, 0, r0, cr7, cr6, {0}
+ * 5951c: ee020f30 mcr 15, 0, r0, cr2, cr0, {1}
+ * 59520: ee020f10 mcr 15, 0, r0, cr2, cr0, {0}
+ * 59524: ee030f10 mcr 15, 0, r0, cr3, cr0, {0}
+ * 59528: ee050f70 mcr 15, 0, r0, cr5, cr0, {3}
+ * 5952c: ee050f50 mcr 15, 0, r0, cr5, cr0, {2}
+ * 59530: ee050f30 mcr 15, 0, r0, cr5, cr0, {1}
+ * 59534: ee050f10 mcr 15, 0, r0, cr5, cr0, {0}
+ * 59538: e3a00016 mov r0, #22 ; 0x16
+ * 5953c: ee060f10 mcr 15, 0, r0, cr6, cr0, {0}
+ * 59540: ee060f11 mcr 15, 0, r0, cr6, cr1, {0}
+ * 59544: ee060f12 mcr 15, 0, r0, cr6, cr2, {0}
+ * 59548: ee060f13 mcr 15, 0, r0, cr6, cr3, {0}
+ * 5954c: ee060f14 mcr 15, 0, r0, cr6, cr4, {0}
+ * 59550: ee060f15 mcr 15, 0, r0, cr6, cr5, {0}
+ * 59554: ee060f16 mcr 15, 0, r0, cr6, cr6, {0}
+ * 59558: ee060f17 mcr 15, 0, r0, cr6, cr7, {0}
+ * 5955c: e1a0f00e mov r15, r14
+ * 59560: e3a01000 mov r1, #0 ; 0x0
+ * 59564: ee071f15 mcr 15, 0, r1, cr7, cr5, {0}
+ * 59568: ee071f16 mcr 15, 0, r1, cr7, cr6, {0}
+ * 5956c: e3800078 orr r0, r0, #120 ; 0x78
+ * 59570: ee010f10 mcr 15, 0, r0, cr1, cr0, {0}
+ * 59574: e1a0f00e mov r15, r14
+ * 59578: e92d00f0 push {r4, r5, r6, r7}
+ * 5957c: e3500007 cmp r0, #7 ; 0x7
+ * 59580: 8a00003c bhi 0x59678
+ * 59584: e3e04ef0 mvn r4, #3840 ; 0xf00
+ * 59588: e22440ff eor r4, r4, #255 ; 0xff
+ * 5958c: e1d14004 bics r4, r1, r4
+ * 59590: 1a000038 bne 0x59678
+ * 59594: e3a0403f mov r4, #63 ; 0x3f
+ * 59598: e1d24004 bics r4, r2, r4
+ * 5959c: 1a000035 bne 0x59678
+ * 595a0: e3a06001 mov r6, #1 ; 0x1
+ * 595a4: e1a04423 lsr r4, r3, #8
+ * 595a8: e2044001 and r4, r4, #1 ; 0x1
+ * 595ac: ee125f30 mrc 15, 0, r5, cr2, cr0, {1}
+ * 595b0: e1c55016 bic r5, r5, r6, lsl r0
+ * 595b4: e1855014 orr r5, r5, r4, lsl r0
+ * 595b8: ee025f30 mcr 15, 0, r5, cr2, cr0, {1}
+ * 595bc: e1a044a3 lsr r4, r3, #9
+ * 595c0: e2044001 and r4, r4, #1 ; 0x1
+ * 595c4: ee125f10 mrc 15, 0, r5, cr2, cr0, {0}
+ * 595c8: e1c55016 bic r5, r5, r6, lsl r0
+ * 595cc: e1855014 orr r5, r5, r4, lsl r0
+ * 595d0: ee025f10 mcr 15, 0, r5, cr2, cr0, {0}
+ * 595d4: e1a04523 lsr r4, r3, #10
+ * 595d8: e2044001 and r4, r4, #1 ; 0x1
+ * 595dc: ee135f10 mrc 15, 0, r5, cr3, cr0, {0}
+ * 595e0: e1c55016 bic r5, r5, r6, lsl r0
+ * 595e4: e1855014 orr r5, r5, r4, lsl r0
+ * 595e8: ee035f10 mcr 15, 0, r5, cr3, cr0, {0}
+ * 595ec: e3a0600f mov r6, #15 ; 0xf
+ * 595f0: e3a07004 mov r7, #4 ; 0x4
+ * 595f4: e0070790 mul r7, r0, r7
+ * 595f8: e0034006 and r4, r3, r6
+ * 595fc: ee155f70 mrc 15, 0, r5, cr5, cr0, {3}
+ * 59600: e1c55716 bic r5, r5, r6, lsl r7
+ * 59604: e1855714 orr r5, r5, r4, lsl r7
+ * 59608: ee055f70 mcr 15, 0, r5, cr5, cr0, {3}
+ * 5960c: e1a04223 lsr r4, r3, #4
+ * 59610: e0044006 and r4, r4, r6
+ * 59614: ee155f50 mrc 15, 0, r5, cr5, cr0, {2}
+ * 59618: e1c55716 bic r5, r5, r6, lsl r7
+ * 5961c: e1855714 orr r5, r5, r4, lsl r7
+ * 59620: ee055f50 mcr 15, 0, r5, cr5, cr0, {2}
+ * 59624: e1814002 orr r4, r1, r2
+ * 59628: e08ff180 add r15, r15, r0, lsl #3
+ * 5962c: e1a00000 nop (mov r0,r0)
+ * 59630: ee064f10 mcr 15, 0, r4, cr6, cr0, {0}
+ * 59634: ea00000c b 0x5966c
+ * 59638: ee064f11 mcr 15, 0, r4, cr6, cr1, {0}
+ * 5963c: ea00000a b 0x5966c
+ * 59640: ee064f12 mcr 15, 0, r4, cr6, cr2, {0}
+ * 59644: ea000008 b 0x5966c
+ * 59648: ee064f13 mcr 15, 0, r4, cr6, cr3, {0}
+ * 5964c: ea000006 b 0x5966c
+ * 59650: ee064f14 mcr 15, 0, r4, cr6, cr4, {0}
+ * 59654: ea000004 b 0x5966c
+ * 59658: ee064f15 mcr 15, 0, r4, cr6, cr5, {0}
+ * 5965c: ea000002 b 0x5966c
+ * 59660: ee064f16 mcr 15, 0, r4, cr6, cr6, {0}
+ * 59664: ea000000 b 0x5966c
+ * 59668: ee064f17 mcr 15, 0, r4, cr6, cr7, {0}
+ * 5966c: e3a00000 mov r0, #0 ; 0x0
+ * 59670: e8bd00f0 pop {r4, r5, r6, r7}
+ * 59674: e1a0f00e mov r15, r14
+ * 59678: e3e00000 mvn r0, #0 ; 0x0
+ * 5967c: e8bd00f0 pop {r4, r5, r6, r7}
+ * 59680: e1a0f00e mov r15, r14
* 59684: e92d43f8 push {r3, r4, r5, r6, r7, r8, r9, r14}
* 59688: eb000000 bl 0x59690
* 5968c: e8bd83f8 pop {r3, r4, r5, r6, r7, r8, r9, r15}
* 59b7c: 14000410 strne r0, [r0], #-1040
* 59b80: 46335053 undefined
*/
+
+void err_exit(const char *fname)
+{
+ fprintf(stderr,"%s: error extracting...\n", fname);
+ exit(1);
+}
+
+struct data_in_s {
+ unsigned char *start; /* 0 */
+ unsigned char *stop; /* 4 */
+ unsigned char bit; /* 8 */
+ unsigned char x; /* 9 */
+};
+
+struct data_out_s {
+ unsigned char *pos;
+ unsigned char *end;
+};
+
+unsigned char fn_597c8(struct data_in_s *r6_data)
+{
+ unsigned char *r0;
+ unsigned char *r1;
+ unsigned char r5;
+
+ r5 = 0;
+
+ r0 = r6_data->start;
+ r1 = r6_data->stop;
+
+ if (r1 < r0)
+ err_exit(__func__);
+
+ r5 = *r0;
+ r0++;
+ r6_data->start = r0;
+
+ return r5;
+}
+
+unsigned int fn_59848(struct data_in_s *r6_data)
+{
+ unsigned char r1;
+ unsigned char r2;
+ unsigned int r5;
+
+ r1 = r6_data->bit;
+ if (r1 == 0x80) {
+ r6_data->x = fn_597c8(r6_data);
+ }
+ r1 = r6_data->bit;
+ r2 = r6_data->x;
+ r1 = r1 & r2;
+ r5 = r1 & 0xff;
+
+ r1 = r6_data->bit;
+ r1 = r1 >> 1;
+ r6_data->bit = r1;
+ if (r1 == 0) {
+ r1 = 0x80;
+ r6_data->bit = r1;
+ }
+
+ if (r5 == 0)
+ return 0;
+
+ return 1;
+}
+
+unsigned int fn_598b4(struct data_in_s *r11_data, unsigned int r10_arg2)
+{
+ unsigned int r1;
+ unsigned int r2;
+ unsigned int r6;
+ unsigned int r7;
+
+ r1 = r10_arg2 - 1;
+ r6 = 1 << r1;
+
+ r7 = 0;
+ while (r6 != 0) {
+ r1 = r11_data->bit;
+ if (r1 == 0x80) {
+ r1 = fn_597c8(r11_data);
+ r11_data->x = r1;
+ }
+ r1 = r11_data->bit;
+ r2 = r11_data->x;
+ r1 = r1 & r2;
+ if (r1 != 0)
+ r7 = r7 | r6;
+
+ r6 = r6 >> 1;
+
+ r2 = r11_data->bit;
+ r2 = r2 >> 1;
+ r11_data->bit = r2;
+
+ r1 = r11_data->bit;
+ if(r1 == 0) {
+ r11_data->bit = 0x80;
+ }
+ }
+
+ return r7;
+}
+
+void fn_5980c(unsigned int arg1, struct data_out_s *data_out)
+{
+ unsigned char *r1;
+ unsigned char *r2;
+
+ r1 = data_out->pos;
+ r2 = data_out->end;
+
+ if (r1 > r2) {
+ printf("r1: 0x%08x, r2: 0x%08x\n", (unsigned int)r1, (unsigned int)r2);
+ err_exit(__func__);
+ }
+
+ *r1 = arg1 & 0xff;
+
+ r1++;
+ data_out->pos = r1;
+}
+
+void lz_expand(struct data_in_s *r10_data, struct data_out_s *data_out)
+{
+ unsigned int r5;
+ unsigned int r2;
+ unsigned char r4;
+ unsigned int r6;
+ unsigned int r7;
+ unsigned int r11;
+ unsigned char arr_59b64[2048];
+
+ r5 = 1;
+
+ while (1) {
+ while (1) {
+ r2 = fn_59848(r10_data);
+ if (r2 == 0)
+ break;
+
+ r2 = fn_598b4(r10_data, 8) & 0xff;
+ r4 = r2;
+
+ fn_5980c(r4, data_out);
+ arr_59b64[r5] = r4 & 0xff;
+ r2 = r5 + 1;
+ r2 = r2 << 22;
+ r2 = r2 >> 22;
+ r5 = r2;
+ }
+
+ r11 = fn_598b4(r10_data, 0x0a);
+ if(r11 == 0)
+ return;
+
+ r2 = fn_598b4(r10_data, 0x04);
+ r7 = r2 + 1;
+ r6 = 0;
+ while (r6 <= r7) {
+ r2 = r6 + r11;
+ r2 = r2 << 22;
+ r2 = r2 >> 22;
+ r4 = arr_59b64[r2];
+ fn_5980c(r4, data_out);
+ arr_59b64[r5] = r4;
+ r2 = r5 + 1;
+ r2 = r2 << 22;
+ r2 = r2 >> 22;
+ r5 = r2;
+ r6++;
+ }
+ }
+}
+
+unsigned int crc_check_59684(unsigned char *arg1, unsigned int arg2, unsigned int magic)
+{
+ unsigned int r3;
+ unsigned int r4;
+ unsigned int r5;
+
+#if 0
+ if (r0 < 0xc0000000)
+ return 1;
+#endif
+
+ /* ??? */
+ r4 = *((unsigned int*)arg1 + 0x20);
+ r5 = *((unsigned int*)arg1 + 0x24);
+
+ printf("magic: 0x%08x <-> 0x%08x\n", r5, magic);
+ if (r5 != magic)
+ return 2;
+
+ if (arg2 >= r4)
+ r5 = 0;
+ else
+ return 3;
+
+ r5 = ~rsb_crc(~0x00, arg1, r4);
+ r3 = *((unsigned int*)(arg1 + r4));
+ printf("Checksums: 0x%02x <-> 0x%02x\n", r5, r3);
+
+ if (r3 == r5)
+ return 0;
+
+ return 4;
+}
+
+void extract_lz_file(unsigned char *inbuf, unsigned char *name)
+{
+ unsigned int len;
+ unsigned char *outbuf;
+ struct data_in_s data_in;
+ struct data_out_s data_out;
+
+ if (*((unsigned int*)inbuf) != LZ_MAGIC)
+ err_exit(__func__);
+
+ len = *((unsigned int*)(inbuf + 4));
+ printf(", length: %d", len);
+
+ if ((outbuf = malloc(len)) == NULL) {
+ perror("malloc");
+ exit(1);
+ }
+
+ bzero(outbuf, len);
+
+ data_in.start = inbuf + 8;
+ data_in.stop = inbuf + len;
+ data_in.x = 0;
+ data_in.bit = 0x80;
+
+ data_out.pos = outbuf;
+ data_out.end = outbuf + len;
+
+ lz_expand(&data_in, &data_out);
+
+#if 0
+ /* This seems to still be completely broken */
+ r3 = r7 + 0x20;
+ r5 = *((unsigned int*)r3);
+
+ if ((ret = crc_check_59684(r7, r5, 0x46335053)) != 0) {
+ printf("crc_check return: %d\n", ret);
+ err_exit(__func__);
+ }
+#endif
+
+ write_file((char*)name, outbuf, len);
+
+ free(outbuf);
+}
projects / rsbs2 / blobdiff