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Use IPv4 and v6 only when suitable interfaces are configured

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Only on systems supporting AI_ADDRCONFIG.
This commit is contained in:
Markus Armbruster 2009-02-11 21:09:18 +01:00
parent 00b5cb2b8a
commit 7cce3124bf
2 changed files with 12 additions and 1 deletions
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7
src/lib/gen/tcp_listen.c
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@ -46,6 +46,11 @@
#include <unistd.h>
#include "prototypes.h"
/* Portability cruft, should become unnecessary eventually */
#ifndef AI_ADDRCONFIG
#define AI_ADDRCONFIG 0
#endif
static void cant_listen(char *, char *, const char *);
int
@ -62,7 +67,7 @@ tcp_listen(char *host, char *serv, size_t *addrlenp)
struct addrinfo hints, *res, *ressave;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_flags = AI_PASSIVE;
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;