static int netPfStrPortParse(char *pszRaw, int cbRaw, uint16_t *pu16Port)
{
char *pszEndOfPort = NULL;
uint16_t u16Port = 0;
int idxRaw = 1; /* we increment pszRaw after checks. */
int cbRest = 0;
size_t cbPort = 0;
AssertPtrReturn(pszRaw, -1);
AssertPtrReturn(pu16Port, -1);
AssertReturn(pszRaw[0] == PF_FIELD_SEPARATOR, -1);
pszRaw++; /* skip line separator */
cbRaw --;
pszEndOfPort = RTStrStr(pszRaw, ":");
if (!pszEndOfPort)
{
cbRest = strlen(pszRaw);
Assert(cbRaw == cbRest);
/* XXX: Assumption that if string is too big, it will be reported by
* RTStrToUint16.
*/
if (cbRest > 0)
{
pszEndOfPort = pszRaw + cbRest;
cbPort = cbRest;
}
else
return -1;
}
else
cbPort = pszEndOfPort - pszRaw;
idxRaw += cbPort;
Assert(cbRest || pszRaw[idxRaw - 1] == PF_FIELD_SEPARATOR); /* we are 1 char ahead */
char szPort[10];
RT_ZERO(szPort);
Assert(idxRaw > 0);
RTStrCopy(szPort, RT_MIN(sizeof(szPort), (size_t)(cbPort) + 1), pszRaw);
if (!(u16Port = RTStrToUInt16(szPort)))
return -1;
*pu16Port = u16Port;
return idxRaw;
}
/**
* portexpr ::= 'port' [0-9]+
*/
static enum RCP_TOKEN rcp_parse_port(struct rcp_parser *parser)
{
struct rcp_state *st;
enum RCP_TOKEN tok = rcp_get_token(parser); /* eats 'port' */
Assert(parser->rcpp_state);
st = parser->rcpp_state;
if ( tok != tok_number
|| tok == tok_eof)
return tok_error;
st->rcps_port = RTStrToUInt16(parser->rcpp_str_buffer);
if (st->rcps_port == 0)
return tok_error;
return rcp_get_token(parser);
}
/**
* nameserverexpr ::= 'nameserver' ip+
* @note: resolver(5) ip ::= (ipv4|ipv6)(.number)?
*/
static enum RCP_TOKEN rcp_parse_nameserver(struct rcp_parser *parser)
{
enum RCP_TOKEN tok = rcp_get_token(parser); /* eats 'nameserver' */
if ( ( tok != tok_ipv4
&& tok != tok_ipv4_port
&& tok != tok_ipv6
&& tok != tok_ipv6_port)
|| tok == EOF)
return tok_error;
while ( tok == tok_ipv4
|| tok == tok_ipv4_port
|| tok == tok_ipv6
|| tok == tok_ipv6_port)
{
struct rcp_state *st;
RTNETADDR *address;
char *str_address;
Assert(parser->rcpp_state);
st = parser->rcpp_state;
/* It's still valid resolv.conf file, just rest of the nameservers should be ignored */
if (st->rcps_num_nameserver >= RCPS_MAX_NAMESERVERS)
return rcp_get_token(parser);
address = &st->rcps_nameserver[st->rcps_num_nameserver];
str_address = &st->rcps_nameserver_str_buffer[st->rcps_num_nameserver * RCPS_IPVX_SIZE];
#ifdef RT_OS_DARWIN
if ( tok == tok_ipv4_port
|| ( tok == tok_ipv6_port
&& (st->rcps_flags & RCPSF_IGNORE_IPV6) == 0))
{
char *ptr = &parser->rcpp_str_buffer[strlen(parser->rcpp_str_buffer)];
while (*(--ptr) != '.');
*ptr = '\0';
address->uPort = RTStrToUInt16(ptr + 1);
if (address->uPort == 0) return tok_error;
}
#endif
/**
* if we on Darwin upper code will cut off port if it's.
*/
if ((st->rcps_flags & RCPSF_NO_STR2IPCONV) != 0)
{
if (strlen(parser->rcpp_str_buffer) > RCPS_IPVX_SIZE)
return tok_error;
strcpy(str_address, parser->rcpp_str_buffer);
st->rcps_str_nameserver[st->rcps_num_nameserver] = str_address;
goto loop_prolog;
}
switch (tok)
{
case tok_ipv4:
case tok_ipv4_port:
{
int rc = RTNetStrToIPv4Addr(parser->rcpp_str_buffer, &address->uAddr.IPv4);
if (RT_FAILURE(rc)) return tok_error;
address->enmType = RTNETADDRTYPE_IPV4;
}
break;
case tok_ipv6:
case tok_ipv6_port:
{
int rc;
if ((st->rcps_flags & RCPSF_IGNORE_IPV6) != 0)
return rcp_get_token(parser);
rc = inet_pton(AF_INET6, parser->rcpp_str_buffer,
&address->uAddr.IPv6);
if (rc == -1)
return tok_error;
address->enmType = RTNETADDRTYPE_IPV6;
}
break;
default: /* loop condition doesn't let enter enything */
AssertMsgFailed(("shouldn't ever happen tok:%d, %s", tok,
isprint(tok) ? parser->rcpp_str_buffer : "#"));
break;
}
loop_prolog:
st->rcps_num_nameserver++;
tok = rcp_get_token(parser);
}
return tok;
}
