/*
* virSocketAddrFormatFull:
* @addr: an initialized virSocketAddrPtr
* @withService: if true, then service info is appended
* @separator: separator between hostname & service.
*
* Returns a string representation of the given address
* Returns NULL on any error
* Caller must free the returned string
*/
char *
virSocketAddrFormatFull(virSocketAddrPtr addr,
bool withService,
const char *separator)
{
char host[NI_MAXHOST], port[NI_MAXSERV];
char *addrstr;
int err;
if (addr == NULL) {
virSocketError(VIR_ERR_INVALID_ARG, "%s", _("Missing address"));
return NULL;
}
/* Short-circuit since getnameinfo doesn't work
* nicely for UNIX sockets */
if (addr->data.sa.sa_family == AF_UNIX) {
if (withService) {
if (virAsprintf(&addrstr, "127.0.0.1%s0",
separator ? separator : ":") < 0)
goto no_memory;
} else {
if (!(addrstr = strdup("127.0.0.1")))
goto no_memory;
}
return addrstr;
}
if ((err = getnameinfo(&addr->data.sa,
addr->len,
host, sizeof(host),
port, sizeof(port),
NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
virSocketError(VIR_ERR_SYSTEM_ERROR,
_("Cannot convert socket address to string: %s"),
gai_strerror(err));
return NULL;
}
if (withService) {
if (virAsprintf(&addrstr, "%s%s%s", host, separator, port) == -1)
goto no_memory;
} else {
if (!(addrstr = strdup(host)))
goto no_memory;
}
return addrstr;
no_memory:
virReportOOMError();
return NULL;
}
/**
* virSocketParseAddr:
* @val: a numeric network address IPv4 or IPv6
* @addr: where to store the return value, optional.
* @family: address family to pass down to getaddrinfo
*
* Mostly a wrapper for getaddrinfo() extracting the address storage
* from the numeric string like 1.2.3.4 or 2001:db8:85a3:0:0:8a2e:370:7334
*
* Returns the length of the network address or -1 in case of error.
*/
int
virSocketParseAddr(const char *val, virSocketAddrPtr addr, int family) {
int len;
struct addrinfo hints;
struct addrinfo *res = NULL;
int err;
if (val == NULL) {
virSocketError(VIR_ERR_INVALID_ARG, "%s", _("Missing address"));
return -1;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = family;
hints.ai_flags = AI_NUMERICHOST;
if ((err = getaddrinfo(val, NULL, &hints, &res)) != 0) {
virSocketError(VIR_ERR_SYSTEM_ERROR,
_("Cannot parse socket address '%s': %s"),
val, gai_strerror(err));
return -1;
}
if (res == NULL) {
virSocketError(VIR_ERR_SYSTEM_ERROR,
_("No socket addresses found for '%s'"),
val);
return -1;
}
len = res->ai_addrlen;
if (addr != NULL) {
memcpy(&addr->data.stor, res->ai_addr, len);
addr->len = res->ai_addrlen;
}
freeaddrinfo(res);
return(len);
}
