diff options
Diffstat (limited to 'src/slirp.c')
| -rw-r--r-- | src/slirp.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/src/slirp.c b/src/slirp.c index a669b45..568064f 100644 --- a/src/slirp.c +++ b/src/slirp.c @@ -143,6 +143,10 @@ static int get_dns_addr_libresolv(int af, void *pdns_addr, void *cached_addr, union res_sockaddr_union servers[NI_MAXSERV]; int count; int found; + void *addr; + + // we only support IPv4 and IPv4, we assume it's one or the other + assert(af == AF_INET || af == AF_INET6); if (res_ninit(&state) != 0) { return -1; @@ -155,11 +159,16 @@ static int get_dns_addr_libresolv(int af, void *pdns_addr, void *cached_addr, if (af == servers[i].sin.sin_family) { found++; } + if (af == AF_INET) { + addr = &servers[i].sin.sin_addr; + } else { // af == AF_INET6 + addr = &servers[i].sin6.sin6_addr; + } // we use the first found entry if (found == 1) { - memcpy(pdns_addr, &servers[i].sin.sin_addr, addrlen); - memcpy(cached_addr, &servers[i].sin.sin_addr, addrlen); + memcpy(pdns_addr, addr, addrlen); + memcpy(cached_addr, addr, addrlen); if (scope_id) { *scope_id = 0; } @@ -171,10 +180,7 @@ static int get_dns_addr_libresolv(int af, void *pdns_addr, void *cached_addr, break; } else if (slirp_debug & DBG_MISC) { char s[INET6_ADDRSTRLEN]; - const char *res = inet_ntop(servers[i].sin.sin_family, - &servers[i].sin.sin_addr, - s, - sizeof(s)); + const char *res = inet_ntop(af, addr, s, sizeof(s)); if (!res) { res = " (string conversion error)"; } @@ -451,6 +457,12 @@ Slirp *slirp_new(const SlirpConfig *cfg, const SlirpCb *callbacks, void *opaque) slirp->disable_dns = false; } + if (cfg->version >= 4) { + slirp->disable_dhcp = cfg->disable_dhcp; + } else { + slirp->disable_dhcp = false; + } + return slirp; } @@ -607,7 +619,10 @@ void slirp_pollfds_fill(Slirp *slirp, uint32_t *timeout, /* * Set for reading (and urgent data) if we are connected, can - * receive more, and we have room for it XXX /2 ? + * receive more, and we have room for it. + * + * If sb is already half full, we will wait for the guest to consume it, + * and notify again in sbdrop() when the sb becomes less than half full. */ if (CONN_CANFRCV(so) && (so->so_snd.sb_cc < (so->so_snd.sb_datalen / 2))) { @@ -1353,6 +1368,8 @@ size_t slirp_socket_can_recv(Slirp *slirp, struct in_addr guest_addr, } if (!CONN_CANFRCV(so) || so->so_snd.sb_cc >= (so->so_snd.sb_datalen / 2)) { + /* If the sb is already half full, we will wait for the guest to consume it, + * and notify again in sbdrop() when the sb becomes less than half full. */ return 0; } |