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MiraMonVector: Fix Issue 69168 oss-fuzz
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@AbelPau
AbelPau committed Sep 5, 2024
1 parent ac213a3 commit 09b21a9
Showing 1 changed file with 112 additions and 0 deletions.
112 changes: 112 additions & 0 deletions ogr/ogrsf_frmts/miramon/mm_gdal_functions.c
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Original file line number Diff line number Diff line change
Expand Up @@ -743,60 +743,102 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function(&(data_base_XP->dbf_version), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* MM_BYTE from 1 to 3 */
variable_byte = (MM_BYTE)(data_base_XP->year - 1900);
if (fwrite_function(&variable_byte, 1, 1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
if (fwrite_function(&(data_base_XP->month), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
if (fwrite_function(&(data_base_XP->day), 1, 1, data_base_XP->pfDataBase) !=
1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* from 4 a 7, position MM_FIRST_OFFSET_to_N_RECORDS */
{
GUInt32 nRecords32LowBits =
(GUInt32)(data_base_XP->nRecords & UINT32_MAX);
if (fwrite_function(&nRecords32LowBits, 4, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}

/* from 8 a 9, position MM_PRIMER_OFFSET_a_OFFSET_1a_FITXA */
if (fwrite_function(&(data_base_XP->FirstRecordOffset), 2, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* from 10 to 11, & from 12 to 13 */
if (MM_ES_DBF_ESTESA(data_base_XP->dbf_version))
{
if (fwrite_function(&(data_base_XP->BytesPerRecord),
sizeof(MM_ACCUMULATED_BYTES_TYPE_DBF), 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
else
{
/* from 10 to 11 */
if (fwrite_function(&(data_base_XP->BytesPerRecord), 2, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* from 12 to 13 */
if (fwrite_function(&(data_base_XP->reserved_1), 2, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
/* byte 14 */
if (fwrite_function(&(data_base_XP->transaction_flag), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* byte 15 */
if (fwrite_function(&(data_base_XP->encryption_flag), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* from 16 to 27 */
if (data_base_XP->nRecords > UINT32_MAX)
Expand All @@ -805,42 +847,70 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
GUInt32 nRecords32HighBits = (GUInt32)(data_base_XP->nRecords >> 32);
if (fwrite_function(&nRecords32HighBits, 4, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* from 20 to 27 */
if (fwrite_function(&(data_base_XP->dbf_on_a_LAN), 8, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
else
{
/* from 16 to 27 */
if (fwrite_function(&(data_base_XP->dbf_on_a_LAN), 12, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
/* byte 28 */
if (fwrite_function(&(data_base_XP->MDX_flag), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* Byte 29 */
if (fwrite_function(&(data_base_XP->CharSet), 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* Bytes from 30 to 31, in position MM_SEGON_OFFSET_a_OFFSET_1a_FITXA */
if (MM_ES_DBF_ESTESA(data_base_XP->dbf_version))
{
if (fwrite_function(((char *)&(data_base_XP->FirstRecordOffset)) + 2, 2,
1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
else
{
if (fwrite_function(&(data_base_XP->reserved_2), 2, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}

/* At 32th byte fields description begins */
Expand All @@ -860,6 +930,8 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
1, j, data_base_XP->pfDataBase);
if (retorn_fwrite != (size_t)j)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
MM_InitializeOffsetExtendedFieldNameFields(data_base_XP, i);
Expand Down Expand Up @@ -921,6 +993,8 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
1, j, data_base_XP->pfDataBase);
if (retorn_fwrite != (size_t)j)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

Expand All @@ -931,24 +1005,32 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
}
else
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

if (fwrite_function(zero, 1, 11 - j, data_base_XP->pfDataBase) !=
11 - (size_t)j)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* Byte 11, Field type */
if (fwrite_function(&data_base_XP->pField[i].FieldType, 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* Bytes 12 to 15 --> Reserved */
if (fwrite_function(&data_base_XP->pField[i].reserved_1, 4, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* Byte 16, or OFFSET_BYTESxCAMP_CAMP_CLASSIC --> BytesPerField */
Expand All @@ -958,6 +1040,8 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function((void *)&byte_zero, 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
Expand All @@ -966,6 +1050,8 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function(&data_base_XP->pField[i].BytesPerField, 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
Expand All @@ -976,13 +1062,17 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function(&data_base_XP->pField[i].DecimalsIfFloat, 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
else
{
if (fwrite_function(zero, 1, 1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
Expand All @@ -993,6 +1083,8 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function(&data_base_XP->pField[i].reserved_2,
20 - 18 + 1, 1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
/* Bytes from 21 to 24 --> OFFSET_BYTESxCAMP_CAMP_ESPECIAL, special fields, like C
Expand All @@ -1001,13 +1093,17 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
sizeof(MM_BYTES_PER_FIELD_TYPE_DBF), 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

/* Bytes from 25 to 30 --> Reserved */
if (fwrite_function(&data_base_XP->pField[i].reserved_2[25 - 18],
30 - 25 + 1, 1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
Expand All @@ -1021,23 +1117,35 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
if (fwrite_function(&data_base_XP->pField[i].reserved_2, 13, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
/* Byte 31 --> MDX flag. */
if (fwrite_function(&data_base_XP->pField[i].MDX_field_flag, 1, 1,
data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}

variable_byte = 13;
if (fwrite_function(&variable_byte, 1, 1, data_base_XP->pfDataBase) != 1)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

if (data_base_XP->FirstRecordOffset != bytes_acumulats)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}

// Extended fields
for (i = 0; i < data_base_XP->nFields; i++)
Expand All @@ -1058,7 +1166,11 @@ MM_OpenIfNeededAndUpdateEntireHeader(struct MM_DATA_BASE_XP *data_base_XP)
data_base_XP->pfDataBase);

if (retorn_fwrite != (size_t)name_size)
{
fclose_function(data_base_XP->pfDataBase);
data_base_XP->pfDataBase = nullptr;
return FALSE;
}
}
}

Expand Down

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