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Code Issues Releases Activity

Added IPAddress::fromString(....) function

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This commit is contained in:
Cristian Maglie 2015-09-09 11:52:33 +02:00
parent 306eaa13c9
commit e3909b4e2c
4 changed files with 90 additions and 2 deletions
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42
hardware/arduino/avr/cores/arduino/IPAddress.cpp
View File

@ -43,6 +43,48 @@ IPAddress::IPAddress(const uint8_t *address)
memcpy(_address.bytes, address, sizeof(_address.bytes));
}
bool IPAddress::fromString(const char *address)
{
// TODO: add support for "a", "a.b", "a.b.c" formats
uint16_t acc = 0; // Accumulator
uint8_t dots = 0;
while (*address)
{
char c = *address++;
if (c >= '0' && c <= '9')
{
acc = acc * 10 + (c - '0');
if (acc > 255) {
// Value out of [0..255] range
return false;
}
}
else if (c == '.')
{
if (dots == 3) {
// Too much dots (there must be 3 dots)
return false;
}
_address.bytes[dots++] = acc;
acc = 0;
}
else
{
// Invalid char
return false;
}
}
if (dots != 3) {
// Too few dots (there must be 3 dots)
return false;
}
_address.bytes[3] = acc;
return true;
}
IPAddress& IPAddress::operator=(const uint8_t *address)
{
memcpy(_address.bytes, address, sizeof(_address.bytes));

4
hardware/arduino/avr/cores/arduino/IPAddress.h
View File

@ -45,6 +45,9 @@ public:
IPAddress(uint32_t address);
IPAddress(const uint8_t *address);
bool fromString(const char *address);
bool fromString(const String &address) { return fromString(address.c_str()); }
// Overloaded cast operator to allow IPAddress objects to be used where a pointer
// to a four-byte uint8_t array is expected
operator uint32_t() const { return _address.dword; };
@ -71,5 +74,4 @@ public:
const IPAddress INADDR_NONE(0,0,0,0);
#endif

42
hardware/arduino/sam/cores/arduino/IPAddress.cpp
View File

@ -43,6 +43,48 @@ IPAddress::IPAddress(const uint8_t *address)
memcpy(_address.bytes, address, sizeof(_address.bytes));
}
bool IPAddress::fromString(const char *address)
{
// TODO: add support for "a", "a.b", "a.b.c" formats
uint16_t acc = 0; // Accumulator
uint8_t dots = 0;
while (*address)
{
char c = *address++;
if (c >= '0' && c <= '9')
{
acc = acc * 10 + (c - '0');
if (acc > 255) {
// Value out of [0..255] range
return false;
}
}
else if (c == '.')
{
if (dots == 3) {
// Too much dots (there must be 3 dots)
return false;
}
_address.bytes[dots++] = acc;
acc = 0;
}
else
{
// Invalid char
return false;
}
}
if (dots != 3) {
// Too few dots (there must be 3 dots)
return false;
}
_address.bytes[3] = acc;
return true;
}
IPAddress& IPAddress::operator=(const uint8_t *address)
{
memcpy(_address.bytes, address, sizeof(_address.bytes));

4
hardware/arduino/sam/cores/arduino/IPAddress.h
View File

@ -45,6 +45,9 @@ public:
IPAddress(uint32_t address);
IPAddress(const uint8_t *address);
bool fromString(const char *address);
bool fromString(const String &address) { return fromString(address.c_str()); }
// Overloaded cast operator to allow IPAddress objects to be used where a pointer
// to a four-byte uint8_t array is expected
operator uint32_t() const { return _address.dword; };
@ -71,5 +74,4 @@ public:
const IPAddress INADDR_NONE(0,0,0,0);
#endif