empire/empserver
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Factor sockaddr_ntop() out of player_accept()

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Oops on inet_ntop() failure instead of merely logging it.
This commit is contained in:
Markus Armbruster 2013-04-07 13:27:43 +02:00
parent 6a0aed830c
commit ffec91da99
1 changed files with 27 additions and 13 deletions
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40
src/lib/player/accept.c
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@ -55,6 +55,8 @@ static struct emp_qelem Players;
static int player_socket;
static size_t player_addrlen;
static const char *sockaddr_ntop(struct sockaddr *, char *, size_t);
void
player_init(void)
{
@ -167,7 +169,6 @@ player_accept(void *unused)
{
static int conn_cnt;
struct sockaddr *sap;
void *inaddr;
int s = player_socket;
struct player *np;
socklen_t len;
@ -199,21 +200,11 @@ player_accept(void *unused)
close(ns);
continue;
}
#ifdef HAVE_GETADDRINFO
inaddr = sap->sa_family == AF_INET
? (void *)&((struct sockaddr_in *)sap)->sin_addr
: (void *)&((struct sockaddr_in6 *)sap)->sin6_addr;
/* Assumes that if you got getaddrinfo(), you got inet_ntop() too */
if (!inet_ntop(sap->sa_family, inaddr,
np->hostaddr, sizeof(np->hostaddr))) {
logerror("inet_ntop() failed: %s", strerror(errno));
if (!sockaddr_ntop(sap, np->hostaddr, sizeof(np->hostaddr))) {
CANT_REACH();
player_delete(np);
continue;
}
#else
inaddr = &((struct sockaddr_in *)sap)->sin_addr;
strcpy(np->hostaddr, inet_ntoa(*(struct in_addr *)inaddr));
#endif
#ifdef RESOLVE_IPADDRESS
hostp = gethostbyaddr(inaddr, player_addrlen, sap->sa_family);
if (NULL != hostp)
@ -227,3 +218,26 @@ player_accept(void *unused)
empth_create(player_login, stacksize, 0, buf, np);
}
}
static const char *
sockaddr_ntop(struct sockaddr *sap, char *buf, size_t bufsz)
{
#ifdef HAVE_GETADDRINFO
/* Assumes that if you got getaddrinfo(), you got inet_ntop() too */
void *inaddr;
inaddr = sap->sa_family == AF_INET
? (void *)&((struct sockaddr_in *)sap)->sin_addr
: (void *)&((struct sockaddr_in6 *)sap)->sin6_addr;
return inet_ntop(sap->sa_family, inaddr, buf, bufsz);
#else
const char *p;
p = inet_ntoa(((struct sockaddr_in *)sap)->sin_addr);
if (strlen(p) >= bufsz) {
errno = ENOSPC;
return NULL;
}
return strcpy(buf, p);
#endif
}