ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2024-12-19 13:47:56 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

net/ipv4: address prefix and print support

Browse Source
This commit is contained in:
Martin Stein 2016-08-25 15:47:44 +02:00 committed by Christian Helmuth
parent 0f8a39e5ac
commit ee9c4679df
1 changed files with 79 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
repos/os/include/net/ipv4.h
View File

@ -17,6 +17,7 @@
/* Genode */
#include <base/exception.h>
#include <util/string.h>
#include <util/token.h>
#include <util/endian.h>
#include <net/netaddress.h>
@ -26,6 +27,8 @@ namespace Net
enum { IPV4_ADDR_LEN = 4 };
typedef Network_address<IPV4_ADDR_LEN, '.', false> Ipv4_address;
class Ipv4_address_prefix;
class Ipv4_packet;
}
@ -194,4 +197,80 @@ class Net::Ipv4_packet
} __attribute__((packed));
struct Net::Ipv4_address_prefix
{
Ipv4_address address;
Genode::uint8_t prefix = 0;
};
namespace Genode {
inline size_t ascii_to(char const *s, Net::Ipv4_address &result);
inline size_t ascii_to(char const *s, Net::Ipv4_address_prefix &result);
}
Genode::size_t Genode::ascii_to(char const *s, Net::Ipv4_address &result)
{
using namespace Net;
struct Scanner_policy_number
{
static bool identifier_char(char c, unsigned i ) {
return Genode::is_digit(c) && c !='.'; }
};
typedef ::Genode::Token<Scanner_policy_number> Token;
Ipv4_address ip_addr;
Token t(s);
char tmpstr[4];
int cnt = 0;
unsigned char ipb[4] = {0};
size_t size = 0;
while(t) {
if (t.type() == Token::WHITESPACE || t[0] == '.') {
t = t.next();
size++;
continue;
}
t.string(tmpstr, sizeof(tmpstr));
unsigned long tmpc = 0;
size += Genode::ascii_to(tmpstr, tmpc);
ipb[cnt] = tmpc & 0xFF;
t = t.next();
if (cnt == 4)
break;
cnt++;
}
if (cnt == 4) {
result.addr[0] = ipb[0];
result.addr[1] = ipb[1];
result.addr[2] = ipb[2];
result.addr[3] = ipb[3];
return size;
}
return 0;
}
Genode::size_t Genode::ascii_to(char const *s, Net::Ipv4_address_prefix &result)
{
size_t size = ascii_to(s, result.address);
if (!size || s[size] != '/') { return 0; }
char const * prefix = &s[size + 1];
size_t const prefix_size = ascii_to_unsigned(prefix, result.prefix, 10);
if (!prefix_size) { return 0; }
size += prefix_size + 1;
return size;
}
#endif /* _IPV4_H_ */