| 1 | /*␊ |
| 2 | * ext2fs.c␊ |
| 3 | * ␊ |
| 4 | *␊ |
| 5 | * Created by mackerintel on 1/26/09.␊ |
| 6 | * Copyright 2009 __MyCompanyName__. All rights reserved.␊ |
| 7 | *␊ |
| 8 | */␊ |
| 9 | ␊ |
| 10 | #include "libsaio.h"␊ |
| 11 | #include "sl.h"␊ |
| 12 | #include "ext2fs.h"␊ |
| 13 | ␊ |
| 14 | #define EX2ProbeSize␉2048␊ |
| 15 | ␊ |
| 16 | bool EX2Probe (const void *buf)␊ |
| 17 | {␊ |
| 18 | ␉return (OSReadLittleInt16(buf+0x438,0)==0xEF53);␊ |
| 19 | }␊ |
| 20 | ␊ |
| 21 | long EX2GetUUID(CICell ih, char *uuidStr)␊ |
| 22 | {␊ |
| 23 | ␉uint8_t *b, *buf=malloc (EX2ProbeSize);␊ |
| 24 | ␉if (!buf)␊ |
| 25 | ␉␉return -1;␊ |
| 26 | ␉Seek(ih, 0);␊ |
| 27 | ␉Read(ih, (long)buf, EX2ProbeSize);␊ |
| 28 | ␉if (!EX2Probe (buf))␊ |
| 29 | ␉{␊ |
| 30 | ␉␉free (buf);␊ |
| 31 | ␉␉return -1;␊ |
| 32 | ␉}␊ |
| 33 | ␉if (OSReadLittleInt32 (buf+0x44c,0)<1)␊ |
| 34 | ␉{␊ |
| 35 | ␉␉free (buf);␊ |
| 36 | ␉␉return -1;␊ |
| 37 | ␉}␊ |
| 38 | ␉b=buf+0x468;␊ |
| 39 | ␉sprintf(uuidStr,␊ |
| 40 | ␉␉"%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",␊ |
| 41 | ␉␉b[0], b[1], b[2], b[3],␊ |
| 42 | ␉␉b[4], b[5],␊ |
| 43 | ␉␉b[6], b[7],␊ |
| 44 | ␉␉b[8], b[9],␊ |
| 45 | ␉␉b[10], b[11], b[12], b[13], b[14], b[15]);␊ |
| 46 | ␉free (buf);␊ |
| 47 | ␉return 0;␊ |
| 48 | }␊ |
| 49 | ␊ |
| 50 | void EX2GetDescription(CICell ih, char *str, long strMaxLen)␊ |
| 51 | {␊ |
| 52 | ␉char * buf=malloc (EX2ProbeSize);␊ |
| 53 | ␉str[0]=0;␊ |
| 54 | ␉if (!buf)␊ |
| 55 | ␉␉return;␊ |
| 56 | ␉Seek(ih, 0);␊ |
| 57 | ␉Read(ih, (long)buf, EX2ProbeSize);␊ |
| 58 | ␉if (!EX2Probe (buf))␊ |
| 59 | ␉{␊ |
| 60 | ␉␉free (buf);␊ |
| 61 | ␉␉return;␊ |
| 62 | ␉}␊ |
| 63 | ␉if (OSReadLittleInt32 (buf+0x44c,0)<1)␊ |
| 64 | ␉{␊ |
| 65 | ␉␉free (buf);␊ |
| 66 | ␉␉return;␊ |
| 67 | ␉}␊ |
| 68 | ␉str[strMaxLen]=0;␊ |
| 69 | ␉strncpy (str, buf+0x478, MIN(strMaxLen, 16));␊ |
| 70 | ␉free (buf);␊ |
| 71 | }␊ |
| 72 | |
