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Changed is_big_endian() call to a macro defined as BIG_ENDIAN. Now you must define this for your platform.

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This commit is contained in:
skarg
2006-08-10 19:57:15 +00:00
parent 79d84b324e
commit f80623d8c5
1 changed files with 141 additions and 142 deletions
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bacnet-stack/bacdcode.c
+141 -142
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@@ -38,11 +38,11 @@
#include "bacdcode.h"
#include "bacenum.h"
#include "bits.h"
#include "bigend.h"
#include "bacstr.h"
/* NOTE: byte order plays a role in decoding multibyte values */
/* http://www.unixpapa.com/incnote/byteorder.html */
/* define BIG_ENDIAN=1 or BIG_ENDIAN=0 for your target! */
/* max-segments-accepted
B'000' Unspecified number of segments accepted.
@@ -195,13 +195,13 @@ int encode_unsigned16(uint8_t * apdu, uint16_t value)
0}};
short_data.value = value;
if (big_endian()) {
apdu[0] = short_data.byte[0];
apdu[1] = short_data.byte[1];
} else {
apdu[0] = short_data.byte[1];
apdu[1] = short_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = short_data.byte[0];
apdu[1] = short_data.byte[1];
#else
apdu[0] = short_data.byte[1];
apdu[1] = short_data.byte[0];
#endif
return 2;
}
@@ -214,13 +214,13 @@ int decode_unsigned16(uint8_t * apdu, uint16_t * value)
} short_data = { {
0}};
if (big_endian()) {
short_data.byte[0] = apdu[0];
short_data.byte[1] = apdu[1];
} else {
short_data.byte[1] = apdu[0];
short_data.byte[0] = apdu[1];
}
#if BIG_ENDIAN
short_data.byte[0] = apdu[0];
short_data.byte[1] = apdu[1];
#else
short_data.byte[1] = apdu[0];
short_data.byte[0] = apdu[1];
#endif
if (value)
*value = short_data.value;
@@ -236,15 +236,15 @@ int encode_unsigned24(uint8_t * apdu, uint32_t value)
0}};
long_data.value = value;
if (big_endian()) {
apdu[0] = long_data.byte[1];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[3];
} else {
apdu[0] = long_data.byte[2];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = long_data.byte[1];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[3];
#else
apdu[0] = long_data.byte[2];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[0];
#endif
return 3;
}
@@ -257,15 +257,15 @@ int decode_unsigned24(uint8_t * apdu, uint32_t * value)
} long_data = { {
0}};
if (big_endian()) {
long_data.byte[1] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[3] = apdu[2];
} else {
long_data.byte[2] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[0] = apdu[2];
}
#if BIG_ENDIAN
long_data.byte[1] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[3] = apdu[2];
#else
long_data.byte[2] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[0] = apdu[2];
#endif
if (value)
*value = long_data.value;
@@ -281,17 +281,17 @@ int encode_unsigned32(uint8_t * apdu, uint32_t value)
0}};
long_data.value = value;
if (big_endian()) {
apdu[0] = long_data.byte[0];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[2];
apdu[3] = long_data.byte[3];
} else {
apdu[0] = long_data.byte[3];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[1];
apdu[3] = long_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = long_data.byte[0];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[2];
apdu[3] = long_data.byte[3];
#else
apdu[0] = long_data.byte[3];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[1];
apdu[3] = long_data.byte[0];
#endif
return 4;
}
@@ -304,17 +304,17 @@ int decode_unsigned32(uint8_t * apdu, uint32_t * value)
} long_data = { {
0}};
if (big_endian()) {
long_data.byte[0] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[2] = apdu[2];
long_data.byte[3] = apdu[3];
} else {
long_data.byte[3] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[1] = apdu[2];
long_data.byte[0] = apdu[3];
}
#if BIG_ENDIAN
long_data.byte[0] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[2] = apdu[2];
long_data.byte[3] = apdu[3];
#else
long_data.byte[3] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[1] = apdu[2];
long_data.byte[0] = apdu[3];
#endif
if (value)
*value = long_data.value;
@@ -359,13 +359,13 @@ int encode_signed16(uint8_t * apdu, int16_t value)
0}};
short_data.value = value;
if (big_endian()) {
apdu[0] = short_data.byte[0];
apdu[1] = short_data.byte[1];
} else {
apdu[0] = short_data.byte[1];
apdu[1] = short_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = short_data.byte[0];
apdu[1] = short_data.byte[1];
#else
apdu[0] = short_data.byte[1];
apdu[1] = short_data.byte[0];
#endif
return 2;
}
@@ -378,13 +378,13 @@ int decode_signed16(uint8_t * apdu, int16_t * value)
} short_data = { {
0}};
if (big_endian()) {
short_data.byte[0] = apdu[0];
short_data.byte[1] = apdu[1];
} else {
short_data.byte[1] = apdu[0];
short_data.byte[0] = apdu[1];
}
#if BIG_ENDIAN
short_data.byte[0] = apdu[0];
short_data.byte[1] = apdu[1];
#else
short_data.byte[1] = apdu[0];
short_data.byte[0] = apdu[1];
#endif
if (value)
*value = short_data.value;
@@ -400,15 +400,15 @@ int encode_signed24(uint8_t * apdu, int32_t value)
0}};
long_data.value = value;
if (big_endian()) {
apdu[0] = long_data.byte[1];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[3];
} else {
apdu[0] = long_data.byte[2];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = long_data.byte[1];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[3];
#else
apdu[0] = long_data.byte[2];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[0];
#endif
return 3;
}
@@ -421,23 +421,23 @@ int decode_signed24(uint8_t * apdu, int32_t * value)
} long_data = { {
0}};
if (big_endian()) {
/* negative - bit 7 is set */
if (apdu[0] & 0x80)
long_data.byte[0] = 0xFF;
/* fill in the rest */
long_data.byte[1] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[3] = apdu[2];
} else {
/* negative - bit 7 is set */
if (apdu[0] & 0x80)
long_data.byte[3] = 0xFF;
/* fill in the rest */
long_data.byte[2] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[0] = apdu[2];
}
#if BIG_ENDIAN
/* negative - bit 7 is set */
if (apdu[0] & 0x80)
long_data.byte[0] = 0xFF;
/* fill in the rest */
long_data.byte[1] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[3] = apdu[2];
#else
/* negative - bit 7 is set */
if (apdu[0] & 0x80)
long_data.byte[3] = 0xFF;
/* fill in the rest */
long_data.byte[2] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[0] = apdu[2];
#endif
if (value)
*value = long_data.value;
@@ -453,17 +453,17 @@ int encode_signed32(uint8_t * apdu, int32_t value)
0}};
long_data.value = value;
if (big_endian()) {
apdu[0] = long_data.byte[0];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[2];
apdu[3] = long_data.byte[3];
} else {
apdu[0] = long_data.byte[3];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[1];
apdu[3] = long_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = long_data.byte[0];
apdu[1] = long_data.byte[1];
apdu[2] = long_data.byte[2];
apdu[3] = long_data.byte[3];
#else
apdu[0] = long_data.byte[3];
apdu[1] = long_data.byte[2];
apdu[2] = long_data.byte[1];
apdu[3] = long_data.byte[0];
#endif
return 4;
}
@@ -476,17 +476,17 @@ int decode_signed32(uint8_t * apdu, int32_t * value)
} long_data = { {
0}};
if (big_endian()) {
long_data.byte[0] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[2] = apdu[2];
long_data.byte[3] = apdu[3];
} else {
long_data.byte[3] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[1] = apdu[2];
long_data.byte[0] = apdu[3];
}
#if BIG_ENDIAN
long_data.byte[0] = apdu[0];
long_data.byte[1] = apdu[1];
long_data.byte[2] = apdu[2];
long_data.byte[3] = apdu[3];
#else
long_data.byte[3] = apdu[0];
long_data.byte[2] = apdu[1];
long_data.byte[1] = apdu[2];
long_data.byte[0] = apdu[3];
#endif
if (value)
*value = long_data.value;
@@ -875,17 +875,18 @@ int decode_real(uint8_t * apdu, float *real_value)
float real_value;
} my_data;
if (big_endian()) {
my_data.byte[0] = apdu[0];
my_data.byte[1] = apdu[1];
my_data.byte[2] = apdu[2];
my_data.byte[3] = apdu[3];
} else {
my_data.byte[0] = apdu[3];
my_data.byte[1] = apdu[2];
my_data.byte[2] = apdu[1];
my_data.byte[3] = apdu[0];
}
/* NOTE: assumes the compiler stores float as IEEE-754 float */
#if BIG_ENDIAN
my_data.byte[0] = apdu[0];
my_data.byte[1] = apdu[1];
my_data.byte[2] = apdu[2];
my_data.byte[3] = apdu[3];
#else
my_data.byte[0] = apdu[3];
my_data.byte[1] = apdu[2];
my_data.byte[2] = apdu[1];
my_data.byte[3] = apdu[0];
#endif
*real_value = my_data.real_value;
@@ -901,19 +902,19 @@ int encode_bacnet_real(float value, uint8_t * apdu)
float real_value;
} my_data;
/* NOTE: assumes the compiler stores float as IEEE-754 float */
my_data.real_value = value;
if (big_endian()) {
apdu[0] = my_data.byte[0];
apdu[1] = my_data.byte[1];
apdu[2] = my_data.byte[2];
apdu[3] = my_data.byte[3];
} else {
apdu[0] = my_data.byte[3];
apdu[1] = my_data.byte[2];
apdu[2] = my_data.byte[1];
apdu[3] = my_data.byte[0];
}
#if BIG_ENDIAN
apdu[0] = my_data.byte[0];
apdu[1] = my_data.byte[1];
apdu[2] = my_data.byte[2];
apdu[3] = my_data.byte[3];
#else
apdu[0] = my_data.byte[3];
apdu[1] = my_data.byte[2];
apdu[2] = my_data.byte[1];
apdu[3] = my_data.byte[0];
#endif
return 4;
}
@@ -1122,7 +1123,6 @@ int decode_character_string(uint8_t * apdu, uint32_t len_value,
/* from clause 20.2.4 Encoding of an Unsigned Integer Value */
/* and 20.2.1 General Rules for Encoding BACnet Tags */
/* returns the number of apdu bytes consumed */
/* FIXME: What about endian? */
int encode_bacnet_unsigned(uint8_t * apdu, uint32_t value)
{
int len = 0; /* return value */
@@ -1171,7 +1171,6 @@ int encode_tagged_unsigned(uint8_t * apdu, uint32_t value)
/* from clause 20.2.4 Encoding of an Unsigned Integer Value */
/* and 20.2.1 General Rules for Encoding BACnet Tags */
/* returns the number of apdu bytes consumed */
/* FIXME: What about endian? */
int decode_unsigned(uint8_t * apdu, uint32_t len_value, uint32_t * value)
{
uint16_t unsigned16_value = 0;