if (force < 0) { force = 0; if (kernel_version() < KRELEASE(2,1,0)) force = 1; if (access("/proc/net",R_OK)) force = 1;
if (force < 0) { force = 0; if (kernel_version() < KRELEASE(2, 1, 0)) force = 1; if (access("/proc/net", R_OK)) force = 1; } for (aft = aftypes; *aft; aft++) { struct aftype *af = *aft; if (af->af == AF_UNSPEC) continue; if (family && family != af->af) continue; if (af->fd != -1) { sfd = af->fd; continue;
int sockets_open(int family){	struct aftype **aft;	int sfd = -1; 	static int force = -1; 	if (force < 0) {		force = 0;   		if (kernel_version() < KRELEASE(2,1,0))			force = 1;  		if (access("/proc/net",R_OK))			force = 1;	}	for (aft = aftypes; *aft; aft++) {		struct aftype *af = *aft;		if (af->af == AF_UNSPEC)			continue;		if (family && family != af->af)			continue; 		if (af->fd != -1) {			sfd = af->fd;			continue;		}		/* Check some /proc file first to not stress kmod */ 		if (!force && af->flag_file) { 			if (access(af->flag_file, R_OK))				continue; 		}		sfd = socket(af->af, SOCK_DGRAM, 0);		af->fd = sfd; 	} 	if (sfd < 0)  		fprintf(stderr, _("No usable address families found.\n"));	return sfd;}