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https://github.com/lwip-tcpip/lwip.git
synced 2024-10-05 22:29:49 +00:00
Only add hostname if it's not empty (strlen > 0)
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d5531a239b
commit
1c23bfdc7f
@ -271,9 +271,6 @@ dhcp_select(struct netif *netif)
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struct dhcp *dhcp = netif->dhcp;
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struct dhcp *dhcp = netif->dhcp;
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err_t result;
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err_t result;
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u16_t msecs;
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u16_t msecs;
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#if LWIP_NETIF_HOSTNAME
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const char *p;
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#endif /* LWIP_NETIF_HOSTNAME */
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_select(netif=%p) %c%c%"U16_F"\n", (void*)netif, netif->name[0], netif->name[1], (u16_t)netif->num));
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_select(netif=%p) %c%c%"U16_F"\n", (void*)netif, netif->name[0], netif->name[1], (u16_t)netif->num));
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dhcp_set_state(dhcp, DHCP_REQUESTING);
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dhcp_set_state(dhcp, DHCP_REQUESTING);
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@ -298,13 +295,15 @@ dhcp_select(struct netif *netif)
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dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
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dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
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#if LWIP_NETIF_HOSTNAME
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#if LWIP_NETIF_HOSTNAME
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p = (const char*)netif->hostname;
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if (netif->hostname != NULL) {
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if (p != NULL) {
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const char *p = (const char*)netif->hostname;
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u8_t namelen = (u8_t)strlen(p);
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u8_t namelen = (u8_t)strlen(p);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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if (namelen > 0) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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while (*p) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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dhcp_option_byte(dhcp, *p++);
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while (*p) {
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dhcp_option_byte(dhcp, *p++);
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}
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}
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}
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}
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}
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#endif /* LWIP_NETIF_HOSTNAME */
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#endif /* LWIP_NETIF_HOSTNAME */
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@ -993,9 +992,6 @@ dhcp_renew(struct netif *netif)
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struct dhcp *dhcp = netif->dhcp;
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struct dhcp *dhcp = netif->dhcp;
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err_t result;
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err_t result;
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u16_t msecs;
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u16_t msecs;
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#if LWIP_NETIF_HOSTNAME
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const char *p;
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#endif /* LWIP_NETIF_HOSTNAME */
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_renew()\n"));
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_renew()\n"));
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dhcp_set_state(dhcp, DHCP_RENEWING);
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dhcp_set_state(dhcp, DHCP_RENEWING);
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@ -1006,13 +1002,15 @@ dhcp_renew(struct netif *netif)
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dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
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dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
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#if LWIP_NETIF_HOSTNAME
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#if LWIP_NETIF_HOSTNAME
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p = (const char*)netif->hostname;
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if (netif->hostname != NULL) {
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if (p != NULL) {
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const char *p = (const char*)netif->hostname;
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u8_t namelen = (u8_t)strlen(p);
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u8_t namelen = (u8_t)strlen(p);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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if (namelen > 0) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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while (*p) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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dhcp_option_byte(dhcp, *p++);
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while (*p) {
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dhcp_option_byte(dhcp, *p++);
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}
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}
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}
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}
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}
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#endif /* LWIP_NETIF_HOSTNAME */
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#endif /* LWIP_NETIF_HOSTNAME */
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@ -1057,9 +1055,6 @@ dhcp_rebind(struct netif *netif)
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struct dhcp *dhcp = netif->dhcp;
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struct dhcp *dhcp = netif->dhcp;
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err_t result;
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err_t result;
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u16_t msecs;
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u16_t msecs;
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#if LWIP_NETIF_HOSTNAME
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const char *p;
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#endif /* LWIP_NETIF_HOSTNAME */
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind()\n"));
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LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind()\n"));
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dhcp_set_state(dhcp, DHCP_REBINDING);
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dhcp_set_state(dhcp, DHCP_REBINDING);
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@ -1070,13 +1065,15 @@ dhcp_rebind(struct netif *netif)
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dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
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dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
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#if LWIP_NETIF_HOSTNAME
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#if LWIP_NETIF_HOSTNAME
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p = (const char*)netif->hostname;
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if (netif->hostname != NULL) {
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if (p != NULL) {
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const char *p = (const char*)netif->hostname;
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u8_t namelen = (u8_t)strlen(p);
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u8_t namelen = (u8_t)strlen(p);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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if (namelen > 0) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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LWIP_ASSERT("DHCP: hostname is too long!", namelen < 255);
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while (*p) {
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dhcp_option(dhcp, DHCP_OPTION_HOSTNAME, namelen);
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dhcp_option_byte(dhcp, *p++);
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while (*p) {
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dhcp_option_byte(dhcp, *p++);
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}
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}
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}
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}
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}
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#endif /* LWIP_NETIF_HOSTNAME */
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#endif /* LWIP_NETIF_HOSTNAME */
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