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protobuf-c/protobuf-c.c: add explicit casts in parsing functions for

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better compatibility with 8- and 16-bit platforms (integrate fixes
from #47)
This commit is contained in:
Ilya Lipnitskiy 2013-12-03 22:38:06 -08:00
parent 5b3ac9ca97
commit ffb1c2462a
1 changed files with 11 additions and 10 deletions
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21
protobuf-c/protobuf-c.c
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@ -1723,18 +1723,18 @@ count_packed_elements (ProtobufCType type,
static inline uint32_t static inline uint32_t
parse_uint32 (unsigned len, const uint8_t *data) parse_uint32 (unsigned len, const uint8_t *data)
{ {
unsigned rv = data[0] & 0x7f; uint32_t rv = data[0] & 0x7f;
if (len > 1) if (len > 1)
{ {
rv |= ((data[1] & 0x7f) << 7); rv |= ((uint32_t)(data[1] & 0x7f) << 7);
if (len > 2) if (len > 2)
{ {
rv |= ((data[2] & 0x7f) << 14); rv |= ((uint32_t)(data[2] & 0x7f) << 14);
if (len > 3) if (len > 3)
{ {
rv |= ((data[3] & 0x7f) << 21); rv |= ((uint32_t)(data[3] & 0x7f) << 21);
if (len > 4) if (len > 4)
rv |= (data[4] << 28); rv |= ((uint32_t)(data[4]) << 28);
} }
} }
} }
@ -1761,7 +1761,8 @@ parse_fixed_uint32 (const uint8_t *data)
memcpy (&t, data, 4); memcpy (&t, data, 4);
return t; return t;
#else #else
return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); return data[0] | ((uint32_t)(data[1]) << 8) | ((uint32_t)(data[2]) << 16)
| ((uint32_t)(data[3]) << 24);
#endif #endif
} }
static uint64_t static uint64_t
@ -1771,10 +1772,10 @@ parse_uint64 (unsigned len, const uint8_t *data)
uint64_t rv; uint64_t rv;
if (len < 5) if (len < 5)
return parse_uint32 (len, data); return parse_uint32 (len, data);
rv = ((data[0] & 0x7f)) rv = ((uint64_t)(data[0] & 0x7f))
| ((data[1] & 0x7f)<<7) | ((uint64_t)(data[1] & 0x7f)<<7)
| ((data[2] & 0x7f)<<14) | ((uint64_t)(data[2] & 0x7f)<<14)
| ((data[3] & 0x7f)<<21); | ((uint64_t)(data[3] & 0x7f)<<21);
shift = 28; shift = 28;
for (i = 4; i < len; i++) for (i = 4; i < len; i++)
{ {