unleashed-firmware/applications/multi_converter/multi_converter_units.c
MX 8323877120
formatted, attempt to fix rfid fuzzer crash
crash doesn’t fixed with this commit
2022-09-03 23:10:07 +03:00

261 lines
No EOL
9.1 KiB
C

#include "multi_converter_units.h"
#define MULTI_CONVERTER_CHAR_OVERFLOW '#'
#define MULTI_CONVERTER_MAX_SUPORTED_INT 999999999
#define multi_converter_unit_set_overflow(b) \
for(int _i = 0; _i < MULTI_CONVERTER_NUMBER_DIGITS; _i++) \
b[_i] = MULTI_CONVERTER_CHAR_OVERFLOW;
//
// DEC / HEX / BIN conversion
//
void multi_converter_unit_dec_hex_bin_convert(MultiConverterState* const multi_converter_state) {
char dest[MULTI_CONVERTER_NUMBER_DIGITS];
int i = 0;
uint8_t overflow = 0;
int a = 0;
int r = 0;
uint8_t f = 1;
switch(multi_converter_state->unit_type_orig) {
default:
break;
case UnitTypeDec: {
a = atoi(multi_converter_state->buffer_orig);
f = (multi_converter_state->unit_type_dest == UnitTypeHex ? 16 : 2);
break;
}
case UnitTypeHex:
a = strtol(multi_converter_state->buffer_orig, NULL, 16);
f = (multi_converter_state->unit_type_dest == UnitTypeDec ? 10 : 2);
break;
case UnitTypeBin:
a = strtol(multi_converter_state->buffer_orig, NULL, 2);
f = (multi_converter_state->unit_type_dest == UnitTypeDec ? 10 : 16);
break;
}
while(a > 0) {
r = a % f;
dest[i] = r + (r < 10 ? '0' : ('A' - 10));
a /= f;
if(i++ >= MULTI_CONVERTER_NUMBER_DIGITS) {
overflow = 1;
break;
}
}
if(overflow) {
multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
} else {
// copy DEST (reversed) to destination and append empty chars at the end
for(int j = 0; j < MULTI_CONVERTER_NUMBER_DIGITS; j++) {
if(i >= 1)
multi_converter_state->buffer_dest[j] = dest[--i];
else
multi_converter_state->buffer_dest[j] = ' ';
}
}
}
uint8_t multi_converter_unit_dec_hex_bin_allowed(MultiConverterUnitType unit_type) {
return (unit_type == UnitTypeDec || unit_type == UnitTypeHex || unit_type == UnitTypeBin);
}
//
// CEL / FAR / KEL
//
void multi_converter_unit_temperature_convert(MultiConverterState* const multi_converter_state) {
double a = strtof(multi_converter_state->buffer_orig, NULL);
uint8_t overflow = 0;
switch(multi_converter_state->unit_type_orig) {
default:
break;
case UnitTypeCelsius:
if(multi_converter_state->unit_type_dest == UnitTypeFahernheit) {
// celsius to fahrenheit
a = (a * ((double)1.8)) + 32;
} else { // UnitTypeKelvin
a += ((double)273.15);
}
break;
case UnitTypeFahernheit:
// fahrenheit to celsius, always
a = (a - 32) / ((double)1.8);
if(multi_converter_state->unit_type_dest == UnitTypeKelvin) {
// if kelvin, add
a += ((double)273.15);
}
break;
case UnitTypeKelvin:
// kelvin to celsius, always
a -= ((double)273.15);
if(multi_converter_state->unit_type_dest == UnitTypeFahernheit) {
// if fahernheit, convert
a = (a * ((double)1.8)) + 32;
}
break;
}
if(overflow) {
multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
} else {
int ret = snprintf(
multi_converter_state->buffer_dest, MULTI_CONVERTER_NUMBER_DIGITS + 1, "%.3lf", a);
if(ret < 0) multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
}
}
uint8_t multi_converter_unit_temperature_allowed(MultiConverterUnitType unit_type) {
return (
unit_type == UnitTypeCelsius || unit_type == UnitTypeFahernheit ||
unit_type == UnitTypeKelvin);
}
//
// KM / M / CM / MILES / FEET / INCHES
//
void multi_converter_unit_distance_convert(MultiConverterState* const multi_converter_state) {
double a = strtof(multi_converter_state->buffer_orig, NULL);
uint8_t overflow = 0;
switch(multi_converter_state->unit_type_orig) {
default:
break;
case UnitTypeKilometers:
if(multi_converter_state->unit_type_dest == UnitTypeMeters)
a *= ((double)1000);
else if(multi_converter_state->unit_type_dest == UnitTypeCentimeters)
a *= ((double)100000);
else if(multi_converter_state->unit_type_dest == UnitTypeMiles)
a *= ((double)0.6213711);
else if(multi_converter_state->unit_type_dest == UnitTypeFeet)
a *= ((double)3280.839895013);
else if(multi_converter_state->unit_type_dest == UnitTypeInches)
a *= ((double)39370.078740157);
break;
case UnitTypeMeters:
if(multi_converter_state->unit_type_dest == UnitTypeKilometers)
a /= ((double)1000);
else if(multi_converter_state->unit_type_dest == UnitTypeCentimeters)
a *= ((double)100);
else if(multi_converter_state->unit_type_dest == UnitTypeMiles)
a *= ((double)0.0006213711);
else if(multi_converter_state->unit_type_dest == UnitTypeFeet)
a *= ((double)3.280839895013);
else if(multi_converter_state->unit_type_dest == UnitTypeInches)
a *= ((double)39.370078740157);
break;
case UnitTypeCentimeters:
if(multi_converter_state->unit_type_dest == UnitTypeKilometers)
a /= ((double)100000);
else if(multi_converter_state->unit_type_dest == UnitTypeMeters)
a /= ((double)100);
else if(multi_converter_state->unit_type_dest == UnitTypeMiles)
a *= ((double)0.000006213711);
else if(multi_converter_state->unit_type_dest == UnitTypeFeet)
a *= ((double)0.03280839895013);
else if(multi_converter_state->unit_type_dest == UnitTypeInches)
a *= ((double)0.39370078740157);
break;
case UnitTypeMiles:
if(multi_converter_state->unit_type_dest == UnitTypeKilometers)
a *= ((double)1.609344);
else if(multi_converter_state->unit_type_dest == UnitTypeMeters)
a *= ((double)1609.344);
else if(multi_converter_state->unit_type_dest == UnitTypeCentimeters)
a *= ((double)160934.4);
else if(multi_converter_state->unit_type_dest == UnitTypeFeet)
a *= ((double)5280);
else if(multi_converter_state->unit_type_dest == UnitTypeInches)
a *= ((double)63360);
break;
case UnitTypeFeet:
if(multi_converter_state->unit_type_dest == UnitTypeKilometers)
a *= ((double)0.0003048);
else if(multi_converter_state->unit_type_dest == UnitTypeMeters)
a *= ((double)0.3048);
else if(multi_converter_state->unit_type_dest == UnitTypeCentimeters)
a *= ((double)30.48);
else if(multi_converter_state->unit_type_dest == UnitTypeMiles)
a *= ((double)0.000189393939394);
else if(multi_converter_state->unit_type_dest == UnitTypeInches)
a *= ((double)12);
break;
case UnitTypeInches:
if(multi_converter_state->unit_type_dest == UnitTypeKilometers)
a *= ((double)0.0000254);
else if(multi_converter_state->unit_type_dest == UnitTypeMeters)
a *= ((double)0.0254);
else if(multi_converter_state->unit_type_dest == UnitTypeCentimeters)
a *= ((double)2.54);
else if(multi_converter_state->unit_type_dest == UnitTypeMiles)
a *= ((double)0.0000157828282828);
else if(multi_converter_state->unit_type_dest == UnitTypeFeet)
a *= ((double)0.0833333333333);
break;
}
if(overflow) {
multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
} else {
int ret = snprintf(
multi_converter_state->buffer_dest, MULTI_CONVERTER_NUMBER_DIGITS + 1, "%lf", a);
if(ret < 0) multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
}
}
uint8_t multi_converter_unit_distance_allowed(MultiConverterUnitType unit_type) {
return (
unit_type == UnitTypeKilometers || unit_type == UnitTypeMeters ||
unit_type == UnitTypeCentimeters || unit_type == UnitTypeMiles ||
unit_type == UnitTypeFeet || unit_type == UnitTypeInches);
}
//
// DEG / RAD
//
void multi_converter_unit_angle_convert(MultiConverterState* const multi_converter_state) {
double a = strtof(multi_converter_state->buffer_orig, NULL);
uint8_t overflow = 0;
switch(multi_converter_state->unit_type_orig) {
default:
break;
case UnitTypeDegree:
if(multi_converter_state->unit_type_dest == UnitTypeRadian) a *= ((double)0.0174532925199);
break;
case UnitTypeRadian:
if(multi_converter_state->unit_type_dest == UnitTypeDegree) a *= ((double)57.2957795131);
break;
}
if(overflow) {
multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
} else {
int ret = snprintf(
multi_converter_state->buffer_dest, MULTI_CONVERTER_NUMBER_DIGITS + 1, "%lf", a);
if(ret < 0) multi_converter_unit_set_overflow(multi_converter_state->buffer_dest);
}
}
uint8_t multi_converter_unit_angle_allowed(MultiConverterUnitType unit_type) {
return (unit_type == UnitTypeDegree || unit_type == UnitTypeRadian);
}