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all pkzip modules use u32 to store the hash data and use appropriate printing

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This commit is contained in:
Sein Coray 2019-05-14 14:08:11 +02:00
parent 2434380da2
commit ff718cf53f
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GPG Key ID: 44C4180EA69758EC
3 changed files with 28 additions and 23 deletions
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12
src/modules/module_17200.c
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@ -125,7 +125,7 @@ struct pkzip_hash
u32 data_length;
u16 checksum_from_crc;
u16 checksum_from_timestamp;
u8 data[MAX_DATA];
u32 data[MAX_DATA];
} __attribute__((packed));
@ -227,7 +227,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
p = strtok(NULL, "*");
if (p == NULL) return PARSER_HASH_LENGTH;
pkzip->hash.uncompressed_length = strtoul(p, NULL, 16);
if (pkzip->hash.compressed_length > MAX_DATA)
if (pkzip->hash.compressed_length > MAX_DATA * 4)
{
return PARSER_TOKEN_LENGTH;
}
@ -321,9 +321,13 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
out_len += sprintf (line_buf + out_len, "%x*", pkzip->hash.checksum_from_timestamp);
}
for (u32 i = 0; i < pkzip->hash.data_length; i++)
for (u32 i = 0; i < pkzip->hash.data_length / 4; i++)
{
out_len += sprintf (line_buf + out_len, "%02x", pkzip->hash.data[i]);
out_len += sprintf (line_buf + out_len, "%08x", byte_swap_32 (pkzip->hash.data[i]));
}
for (u32 i = 0; i < pkzip->hash.data_length % 4; i++)
{
out_len += sprintf (line_buf + out_len, "%02x", (pkzip->hash.data[pkzip->hash.data_length / 4] >> i*8) & 0xff);
}
if (pkzip->version == 1)

13
src/modules/module_17210.c
View File

@ -125,7 +125,7 @@ struct pkzip_hash
u32 data_length;
u16 checksum_from_crc;
u16 checksum_from_timestamp;
u8 data[MAX_DATA];
u32 data[MAX_DATA];
} __attribute__((packed));
@ -227,7 +227,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
p = strtok(NULL, "*");
if (p == NULL) return PARSER_HASH_LENGTH;
pkzip->hash.uncompressed_length = strtoul(p, NULL, 16);
if (pkzip->hash.uncompressed_length > MAX_DATA)
if (pkzip->hash.uncompressed_length > MAX_DATA * 4)
{
return PARSER_TOKEN_LENGTH;
}
@ -309,8 +309,6 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
}
out_len += sprintf (line_buf + out_len, "%i*%i*", pkzip->hash_count, pkzip->checksum_size);
for (int cnt = 0; cnt < pkzip->hash_count; cnt++)
{
out_len += sprintf (line_buf + out_len, "%i*%i*", pkzip->hash.data_type_enum, pkzip->hash.magic_type_enum);
if (pkzip->hash.data_type_enum > 1)
{
@ -323,10 +321,13 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
out_len += sprintf (line_buf + out_len, "%x*", pkzip->hash.checksum_from_timestamp);
}
for (u32 i = 0; i < pkzip->hash.data_length; i++)
for (u32 i = 0; i < pkzip->hash.data_length / 4; i++)
{
out_len += sprintf (line_buf + out_len, "%02x", pkzip->hash.data[i]);
out_len += sprintf (line_buf + out_len, "%08x", byte_swap_32 (pkzip->hash.data[i]));
}
for (u32 i = 0; i < pkzip->hash.data_length % 4; i++)
{
out_len += sprintf (line_buf + out_len, "%02x", (pkzip->hash.data[pkzip->hash.data_length / 4] >> i*8) & 0xff);
}
if (pkzip->version == 1)

4
src/modules/module_17230.c
View File

@ -125,7 +125,7 @@ struct pkzip_hash
u32 data_length;
u16 checksum_from_crc;
u16 checksum_from_timestamp;
u8 data[MAX_DATA];
u32 data[MAX_DATA];
} __attribute__((packed));
@ -230,7 +230,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
p = strtok(NULL, "*");
if (p == NULL) return PARSER_HASH_LENGTH;
pkzip->hashes[i].uncompressed_length = strtoul(p, NULL, 16);
if (pkzip->hashes[i].compressed_length > MAX_DATA)
if (pkzip->hashes[i].compressed_length > MAX_DATA * 4)
{
return PARSER_TOKEN_LENGTH;
}