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/* Distributed Checksum Clearinghouse
*
* Copyright (c) 2005 by Rhyolite Software
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND RHYOLITE SOFTWARE DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL RHYOLITE SOFTWARE
* BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Rhyolite Software DCC 1.2.74-1.21 $Revision$
*/
#include "dcc_defs.h"
#ifndef DCC_WIN32
#include <arpa/inet.h>
#endif
/* this is not thread safe */
/* Convert IP address to a string, but not into a single buffer
* This is not thread safe, but it can be used in printf()s */
const char *
dcc_su2str(const DCC_SOCKU *su)
{
static int bufno;
static struct {
char str[INET6_ADDRSTRLEN+1+6+1];
} bufs[4];
u_short port;
char *s;
s = bufs[bufno].str;
bufno = (bufno+1) % DIM(bufs);
if (su->sa.sa_family == AF_INET) {
if (!DCC_INET_NTOP(AF_INET, &su->ipv4.sin_addr,
s, sizeof(bufs[0].str)))
strcpy(s, "???");
port = su->ipv4.sin_port;
} else {
if (!DCC_INET_NTOP(su->sa.sa_family, &su->ipv6.sin6_addr,
s, sizeof(bufs[0].str)))
strcpy(s, "???");
port = su->ipv6.sin6_port;
}
sprintf(s+strlen(s), ",%d", ntohs(port));
return s;
}
/* Convert IP address and optional port number to a string,
* but not into a single buffer
* This is not thread safe, but it can be used in debugging printf()s */
const char *
dcc_su2str_opt(const DCC_SOCKU *su,
u_int16_t def_port,
char port_str) /* 0, '\0' or '-' */
{
static int bufno;
static struct {
char str[INET6_ADDRSTRLEN+1+6+1];
} bufs[4];
char *s, *s1;
s = bufs[bufno].str;
bufno = (bufno+1) % DIM(bufs);
if (su->sa.sa_family == AF_INET) {
if (!DCC_INET_NTOP(su->sa.sa_family, &su->ipv4.sin_addr,
s, sizeof(bufs[0].str)))
strcpy(s, "???");
} else {
if (!DCC_INET_NTOP(su->sa.sa_family, &su->ipv6.sin6_addr,
s, sizeof(bufs[0].str)))
strcpy(s, "???");
}
s1 = s+strlen(s);
if (su->ipv4.sin_port == def_port || def_port == 0) {
if (port_str) {
*s1 = ',';
*++s1 = port_str;
*++s1 = '\0';
}
} else {
sprintf(s1, ",%d", ntohs(su->ipv4.sin_port));
}
return s;
}
/* Convert IP address to a name
* This function is not thread safe */
void
dcc_su2name(char *name, int name_len, const DCC_SOCKU *su)
{
#ifdef NO_IPV6
struct hostent *hp;
if (su->sa.sa_family == AF_INET) {
hp = gethostbyaddr((char*)&su->ipv4.sin_addr,
sizeof(su->ipv4.sin_addr),
AF_INET);
} else if (su->sa.sa_family == AF_INET6
&& su->ipv6.sin6_addr.s6_addr32[2] == htonl(0xffff)) {
hp = gethostbyaddr((char*)&su->ipv6.sin6_addr.s6_addr32[3],
sizeof(su->ipv6.sin6_addr.s6_addr32[3]),
AF_INET);
} else {
hp = 0;
}
if (!hp) {
if (name_len > 0)
*name = '\0';
return;
}
if (name_len > 0) {
if (name_len > 1)
strncpy(name, hp->h_name, name_len);
name[name_len-1] = '\0';
}
#endif
#ifdef USE_GETIPNODEBYNAME
struct hostent *hp;
int error;
if (su->sa.sa_family == AF_INET)
hp = getipnodebyaddr(&su->ipv4.sin_addr,
sizeof(su->ipv4.sin_addr),
su->sa.sa_family, &error);
else
hp = getipnodebyaddr(&su->ipv6.sin6_addr,
sizeof(su->ipv6.sin6_addr),
su->sa.sa_family, &error);
if (!hp) {
if (name_len > 0)
*name = '\0';
return;
}
if (name_len > 0) {
if (name_len > 1)
strncpy(name, hp->h_name, name_len);
name[name_len-1] = '\0';
}
freehostent(hp);
#endif
#ifdef USE_GETADDRINFO
if (su->sa.sa_family == AF_INET)
getnameinfo((struct sockaddr *)&su->ipv4.sin_addr,
sizeof(su->ipv4.sin_addr),
name, name_len,
0, 0, NI_NAMEREQD);
else
getnameinfo((struct sockaddr *)&su->ipv6.sin6_addr,
sizeof(su->ipv6.sin6_addr),
name, name_len,
0, 0, NI_NAMEREQD);
#endif
}
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