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Added untested DNS client code

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This commit is contained in:
Joseph Henry
2017-10-09 00:07:31 -07:00
parent 0319f8a894
commit 7301c8c405
7 changed files with 172 additions and 54 deletions
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38
src/libzt.cpp
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@@ -36,6 +36,8 @@
#include "lwip/sockets.h"
#include "lwip/sys.h"
#include "lwip/ip_addr.h"
#include "lwip/netdb.h"
#include "dns.h"
#endif
#if defined(NO_STACK)
#include <sys/socket.h>
@@ -265,6 +267,36 @@ int zts_sethostname(const char *name, size_t len)
return err;
}
struct hostent *zts_gethostbyname(const char *name)
{
#if defined(STACK_LWIP)
// TODO:
char buf[256];
int buflen = 256;
int h_err = 0;
struct hostent hret;
struct hostent **result = NULL;
int err = 0;
/*
if ((err = lwip_gethostbyname_r(name, &hret, buf, buflen, result, &h_err)) != 0) {
DEBUG_ERROR("err = %d", err);
DEBUG_ERROR("h_err = %d", h_err);
errno = h_err;
return NULL; // failure
}
return *result;
*/
return lwip_gethostbyname(name);
#endif
#if defined(STCK_PICO)
#endif
#if defined(NO_STACK)
return NULL;
#endif
}
int zts_close(int fd)
{
int err = -1;
@@ -475,6 +507,12 @@ int zts_add_dns_nameserver(struct sockaddr *addr)
DEBUG_EXTRA();
int err = -1;
#if defined(STACK_LWIP)
struct sockaddr_in *in4 = (struct sockaddr_in*)&addr;
static ip_addr_t ipaddr;
ipaddr.addr = in4->sin_addr.s_addr;
// TODO: manage DNS server indices
dns_setserver(0, &ipaddr);
err = 0;
#endif
#if defined(STCK_PICO)
#endif