Author Topic: Early beta of nspire version string patcher  (Read 3703 times)

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Offline tangrs

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Early beta of nspire version string patcher
« on: August 07, 2012, 08:14:31 am »
For a bit of fun, I made a version string patcher for the Nspire.



It's still a WIP requiring polish but it works for now :)

I'll publish binaries soon but the impatient can see how it works by visiting the github repo https://github.com/tangrs/nspire-version-patcher

Offline Hayleia

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Re: Early beta of nspire version string patcher
« Reply #1 on: August 07, 2012, 08:21:00 am »
Lol, that is awesome XD
By the way, it has been a long time since the last time I saw you. Are you still working on nspiremovieplayer ? :)
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Offline tangrs

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Re: Early beta of nspire version string patcher
« Reply #2 on: August 07, 2012, 08:27:36 am »
Lol, that is awesome XD
By the way, it has been a long time since the last time I saw you. Are you still working on nspiremovieplayer ? :)

Most of the development in nspiremovieplayer is finding a faster way to decode JPEGS. So there is research work going on behind the scenes XD

Offline Jim Bauwens

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Re: Early beta of nspire version string patcher
« Reply #3 on: August 07, 2012, 09:02:42 am »
Glad to see you're still having fun with the Nspire :)
Also, nice application. I wonder, can you spoof the version number that the Student software detects ?
That would be even cooler as you could trick the software that you have a newer version of the OS installed.

Offline Nick

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Re: Early beta of nspire version string patcher
« Reply #4 on: August 07, 2012, 10:06:34 am »
how is it possible to find the location of those things? the more apps like these i see, the more confused i get xp

nice work btw, really nice :) and i like it how you call it android xp

Offline Levak

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Re: Early beta of nspire version string patcher
« Reply #5 on: August 07, 2012, 10:12:09 am »
I've got better and shorter :
Code: [Select]
#include <os.h>
#include "libndls.h"

static unsigned addr_addrs[] = {0x107C1DDC, 0x10801E3C, 0x107A2DC8, 0x107FF0D0};
#define addr ((unsigned *)nl_osvalue((unsigned*)addr_addrs, 4))

int main(int argc, char* argv[]) {
char lol[]  = "Whatever you want";
char * lol2 = malloc(sizeof(lol));
strcpy(lol2, lol);
    *(addr) = lol2;
    return 0;
}




el problemo ?


Edit : oh, and by the way, show_msg_usr_input() does not work in the current revision of Ndless because my patch for it didn't yet get pushed to the Ndless svn by ExtendeD.
« Last Edit: August 08, 2012, 08:11:14 am by Levak »
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Offline Nick

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Re: Early beta of nspire version string patcher
« Reply #6 on: August 07, 2012, 10:14:53 am »
@levak
how come your ':' are messed up a bit? since they have a space in front of them, and the third one even totally dissapeared :o

Offline Adriweb

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Re: Early beta of nspire version string patcher
« Reply #7 on: August 07, 2012, 10:16:22 am »
Very nice both of you ;-)
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Offline Levak

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Re: Early beta of nspire version string patcher
« Reply #8 on: August 07, 2012, 03:34:34 pm »
@levak
how come your ':' are messed up a bit? since they have a space in front of them, and the third one even totally dissapeared :o

French/English difference =(

EDIT :

Code: [Select]
#include <os.h>
#include "libndls.h"

static unsigned addr_addrs[] = {0x107C1DDC, 0x10801E3C, 0x107A2DC8, 0x107FF0D0};
#define addr ((char **)nl_osvalue((int*)addr_addrs, 4))
static unsigned build_addrs[] = {0x10825114, 0x10865174, 0x10806100, 0x10862408};
#define build ((char *)nl_osvalue((int*)build_addrs, 4))
static unsigned version_addrs[] = {0x100A9CD8, 0x100A9F98, 0x100A93D4, 0x100A96BC};
#define version ((unsigned *)nl_osvalue((int*)version_addrs, 4))

int main() {

int major = 3;
int minor = 1;
int revision = 0;
int b = 392;
int ok =
show_2numeric_input("Change version", "model : [3.1].0.392", "3.", &major, -2, 0xF, "1.", &minor, -2, 0xFF)
&& show_2numeric_input("Change version", "model : 3.1.[0.392]", "0.", &revision, -2, 0xF, "392", &b, -2, 0xFFF);
printf("%d", ok);
if(ok){
char v[] = {major, minor, revision};
/* patch inside infos */
char * lol = malloc(sizeof(char)*15);
sprintf(lol, " %d.%d.%d.%03d", v[0], v[1], v[2], b);
*(addr) = lol;

/* patch outide infos */
sprintf(build, "%03d", b);
*(version-3) = 0xE3A02800 | (v[1]*10+v[2]); // MOV R2, #A, LSR16
*(version-2) = 0xE3A01400 | (v[0]); // MOV R1, #3, LSR24
*(version-1) = 0xE0800001; // ADD R0, R0, R1
*(version) =   0xE0800002; // ADD R0, R0, R2
show_msgbox("", "Successfully patched");
} else {
show_msgbox("", "Patch canceled");
}
    return 0;
}
« Last Edit: August 07, 2012, 04:00:36 pm by Levak »
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Offline xlibman

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Re: Early beta of nspire version string patcher
« Reply #9 on: August 07, 2012, 04:05:59 pm »
Wow nice, so basically we can change most of the system menu text and stuff?
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Offline Wayne

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Re: Early beta of nspire version string patcher
« Reply #10 on: August 07, 2012, 05:36:15 pm »
Yeah TI finally released 4.1.1  :thumbsup:

Offline Levak

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Re: Early beta of nspire version string patcher
« Reply #11 on: August 07, 2012, 05:38:34 pm »
Wow nice, so basically we can change most of the system menu text and stuff?
You thought is was not possible ?
It is just a matter of time, a matter of goal and a matter of usability.

With Ndless, you can run any ASM or C code, so you can basically modify any value, any code in the OS that is running.
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Re: Early beta of nspire version string patcher
« Reply #12 on: August 07, 2012, 05:44:02 pm »
Awesome levak :P
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Re: Early beta of nspire version string patcher
« Reply #13 on: August 07, 2012, 06:19:42 pm »
so now we can trick the sending software by telling it we are running another OS?

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Re: Early beta of nspire version string patcher
« Reply #14 on: August 08, 2012, 01:06:54 am »
Quote
so now we can trick the sending software by telling it we are running another OS?
Seems so, indeed :)
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