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Function to grep an homebrew name from eboot?

 
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Cpasjuste



Joined: 29 May 2005
Posts: 214
PostPosted: Sun Feb 24, 2008 3:21 am    Post subject: Function to grep an homebrew name from eboot? Reply with quote
Hi,

I'm trying to write a simple function to retrieve the "param.sfo" homebrew name from an eboot, but i can't get it.

Does someone have a sample around ?

Thanks in advance,
Cpasjuste.
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Insert_witty_name



Joined: 10 May 2006
Posts: 376
PostPosted: Sun Feb 24, 2008 4:33 am    Post subject: Reply with quote
Hi.

The quick and dirty way is to open the EBOOT, seek to 320 from the start, then read 128 bytes.

Alternatively you can look at the source of mksfo and unpack-pbp for detailed information.

Here's the code to a function I use to change the name.

Code:
char name[] = "NewName";

int lSize;

int fd = sceIoOpen(filepath, PSP_O_RDONLY, 0777);

if(fd < 0)
   return -1;

lSize = sceIoLseek32(fd, 0, PSP_SEEK_END);
   
unsigned char *fileBuffer = malloc(lSize);
   
if(fileBuffer == NULL)
{
   sceIoClose(fd);
   return -1;
}

sceIoLseek32(fd, 0, SEEK_SET);

sceIoRead(fd, fileBuffer, lSize);

sceIoClose(fd);

strncpy((char *) &fileBuffer[320], name, 127);


I read all the file into a buffer because I do further processing.

Last edited by Insert_witty_name on Sun Feb 24, 2008 4:37 am; edited 1 time in total
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Cpasjuste



Joined: 29 May 2005
Posts: 214
PostPosted: Sun Feb 24, 2008 4:36 am    Post subject: Reply with quote
Many thanks Insert_witty_name, i will take a look and post the code here if successfull.
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