diff options
Diffstat (limited to 'src/lib/util/jedparse.cpp')
-rw-r--r-- | src/lib/util/jedparse.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/lib/util/jedparse.cpp b/src/lib/util/jedparse.cpp index c2c9a139a6a..f7b252861a2 100644 --- a/src/lib/util/jedparse.cpp +++ b/src/lib/util/jedparse.cpp @@ -391,9 +391,24 @@ int jedbin_parse(const void *data, size_t length, jed_data *result) /* first unpack the number of fuses */ result->numfuses = (cursrc[0] << 24) | (cursrc[1] << 16) | (cursrc[2] << 8) | cursrc[3]; cursrc += 4; + if (result->numfuses == 0 || result->numfuses > JED_MAX_FUSES) return JEDERR_INVALID_DATA; + /* Detect DataIO binary format and prepare for conversion. This transformation is based on observation of an 82S100 dump */ + if (result->numfuses == ((cursrc[0] << 24) | (cursrc[1] << 16) | (cursrc[2] << 8) | cursrc[3])) + { + result->numfuses = (result->numfuses - 9) * 8; // Double 32 bit byte file size header + trailing byte to Single 32 byte fuse count + cursrc = cursrc + 4; // Adjust start of buffer, trailing byte will not be copied below + result->binfmt = DATAIO; // DataIO also has swapped inverted/non-inverted line fuses so remember origin + if (LOG_PARSE) printf("DATAIO format detected\n"); + } + else + { + result->binfmt = MAXLOADER; // This is the old format just set for completeness. + if (LOG_PARSE) printf("MAXLOADER format detected\n"); + } + /* now make sure we have enough data in the source */ if (length < 4 + (result->numfuses + 7) / 8) return JEDERR_INVALID_DATA; |