Push errors aside to get to linker errors

apps/netutils/dnsclient/dns_gethostip.c

@@ -86,7 +86,7 @@ int dns_gethostip_multi(FAR const char *hostname, FAR in_addr_t *ipaddr,
 
   if (nipaddr == 0 || !ipaddr)
     {
-      errno = EINVAL;
+      set_errno ( EINVAL );
       return ret;
     }
 
@@ -96,7 +96,7 @@ int dns_gethostip_multi(FAR const char *hostname, FAR in_addr_t *ipaddr,
       ret = dns_query_sock_multi(sockfd, hostname, ipaddr, nipaddr);
       err = errno;
       dns_free_sock(&sockfd);
-      errno = err;
+      set_errno( err );
     }
 
   return ret;

apps/netutils/dnsclient/dns_socket.c

@@ -278,7 +278,7 @@ static uint16_t transform_16bit(uint16_t ctr)
 
   if (!g.init)
     {
-      speckrandom_buf(&g.rand, sizeof(g.rand));
+      //speckrandom_buf(&g.rand, sizeof(g.rand));
       g.init = true;
     }
 
@@ -404,7 +404,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
        {
          /* Too long name! */
 
-         errno = EMSGSIZE;
+         set_errno(EMSGSIZE);
          return ERROR;
        }
 
@@ -416,7 +416,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
            {
              /* Too long name! */
 
-             errno = EMSGSIZE;
+             set_errno(EMSGSIZE);
              return ERROR;
            }
 
@@ -432,7 +432,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
     {
       /* Too long name! */
 
-      errno = EMSGSIZE;
+      set_errno(EMSGSIZE);
       return ERROR;
     }
 
@@ -448,7 +448,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
     {
       /* Too long name! */
 
-      errno = EMSGSIZE;
+      set_errno(EMSGSIZE);
       return ERROR;
     }
 
@@ -463,7 +463,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
     {
       /* Out of memory. */
 
-      errno = ENOMEM;
+      set_errno(ENOMEM);
       return ERROR;
     }
 
@@ -485,7 +485,7 @@ static int dns_send_query(int sockfd, FAR const char *name,
       int err = errno;
       free(qinfo->qname);
       qinfo->qname = NULL;
-      errno = err;
+      set_errno(err);
     }
 
   return wlen;
@@ -534,7 +534,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
       /* Not response from DNS server. */
 
       ndbg("packet from wrong address\n");
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -543,7 +543,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
       /* Not response from DNS server. */
 
       ndbg("packet from wrong port\n");
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -554,7 +554,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
       ndbg("too short DNS response (len: %d, expect at least: %d)\n",
            buflen, sizeof(*hdr));
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -571,7 +571,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
 
   if ((hdr->flags2 & DNS_FLAG2_ERR_MASK) != 0)
     {
-      errno = EHOSTUNREACH;
+      set_errno(EHOSTUNREACH);
       return ERROR;
     }
 
@@ -582,7 +582,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
       ndbg("wrong DNS response ID (expected %d, got %d).\n",
            qinfo->id, hdr->id);
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -597,7 +597,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
     {
       ndbg("wrong number of questions (expected %d, got %d).\n", 1, nquestions);
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -642,7 +642,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
     {
       ndbg("invalid DNS response, response name different length than query.\n");
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -650,7 +650,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
     {
       ndbg("invalid DNS response, response name mismatch query.\n");
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -659,7 +659,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
     {
       ndbg("malformed DNS response, no answers section.\n");
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -670,7 +670,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
     {
       ndbg("invalid DNS response, question section mismatch.\n");
 
-      errno = EBADMSG;
+      set_errno(EBADMSG);
       return ERROR;
     }
 
@@ -779,7 +779,7 @@ static int dns_recv_response(int sockfd, FAR in_addr_t *inaddr, size_t naddr,
       return naddr_read;
     }
 
-  errno = errval;
+  set_errno(errval);
   return ERROR;
 }
 
@@ -815,7 +815,7 @@ int dns_bind_sock(FAR int *sockfd)
     {
       err = errno;
       ndbg("ERROR: socket() failed: %d\n", errno);
-      errno = err;
+      set_errno(err);
       return ERROR;
     }
 
@@ -833,7 +833,7 @@ int dns_bind_sock(FAR int *sockfd)
       ndbg("ERROR: setsockopt() failed: %d\n", errno);
       close(*sockfd);
       *sockfd = -1;
-      errno = err;
+      set_errno(err);
       return ERROR;
     }
 
@@ -920,7 +920,7 @@ int dns_query_sock_multi(int sockfd, FAR const char *hostname,
 
   if (!ipaddr || nipaddr == 0)
     {
-      errno = EINVAL;
+      set_errno(EINVAL);
       return ERROR;
     }
 
@@ -1208,7 +1208,7 @@ int dns_whois_socket_multi(int sockfd, FAR const char *name,
 
   if (naddr == 0 || !addr)
     {
-      errno = EINVAL;
+      set_errno(EINVAL);
       return ERROR;
     }
 
@@ -1285,6 +1285,6 @@ int dns_whois_socket_multi(int sockfd, FAR const char *name,
 err_out:
   free(buffer);
   dns_increase_lookup_failed_count();
-  errno = err;
+  set_errno(err);
   return ERROR;
 }

nuttx/.config

@@ -1356,7 +1356,12 @@ CONFIG_CODECS_BASE64=y
 CONFIG_NETUTILS_CODECS=y
 # CONFIG_NETUTILS_DHCPD is not set
 # CONFIG_NETUTILS_DISCOVER is not set
-# CONFIG_NETUTILS_DNSCLIENT is not set
+CONFIG_NETUTILS_DNSCLIENT=y
+CONFIG_NETUTILS_DNSCLIENT_ENTRIES=8
+CONFIG_NETUTILS_DNSCLIENT_IPv4=y
+CONFIG_NETUTILS_DNSCLIENT_MAXRESPONSE=96
+CONFIG_NETUTILS_DNSCLIENT_RECV_TIMEOUT=30
+CONFIG_NETUTILS_DNSCLIENT_RETRIES=3
 # CONFIG_NETUTILS_FTPC is not set
 # CONFIG_NETUTILS_FTPD is not set
 CONFIG_NETUTILS_JSON=y
@@ -1488,6 +1493,7 @@ CONFIG_NSH_ARCHINIT=y
 #
 # IPv4 Addresses
 #
+# CONFIG_NSH_DNS is not set
 CONFIG_NSH_DRIPADDR=0x0a000001
 CONFIG_NSH_IPADDR=0x0a000002
 CONFIG_NSH_MAX_ROUNDTRIP=20
@@ -1557,3 +1563,7 @@ CONFIG_SYSTEM_READLINE=y
 # CONFIG_TESTS_UNITY_RAMTEST is not set
 # CONFIG_TESTS_UNITY_USRSOCK is not set
 
+
+
+
+

nuttx/include/errno.h

-/************************************************************************
+/****************************************************************************
  * include/errno.h
  *
  *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
@@ -31,20 +31,20 @@
  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
- ************************************************************************/
+ ****************************************************************************/
 
 #ifndef __INCLUDE_ERRNO_H
 #define __INCLUDE_ERRNO_H
 
-/************************************************************************
+/****************************************************************************
  * Included Files
- ************************************************************************/
+ ****************************************************************************/
 
 #include <nuttx/compiler.h>
 
-/************************************************************************
+/****************************************************************************
  * Pre-processor Definitions
- ************************************************************************/
+ ****************************************************************************/
 /* How can we access the errno variable? */
 
 #if !defined(CONFIG_BUILD_PROTECTED) && !defined(CONFIG_BUILD_KERNEL)
@@ -378,13 +378,13 @@
 #define ECANCELED           125
 #define ECANCELED_STR       "Operation cancelled"
 
-/************************************************************************
- * Type Declarations
- ************************************************************************/
+/****************************************************************************
+ * Public Type Definitions
+ ****************************************************************************/
 
-/************************************************************************
- * Global Function Prototypes
- ************************************************************************/
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
 
 #undef EXTERN
 #if defined(__cplusplus)

nuttx/libc/stdio/lib_libdtoa.c

@@ -159,13 +159,13 @@ static void lib_dtoa(FAR struct lib_outstream_s *obj, int fmt, int prec,
 
   /* Special handling for NaN and Infinity */
 
-  if (isnan(value))
+  if (value!=value)
     {
       lib_dtoa_string(obj, "NaN");
       return;
     }
 
-  if (isinf(value))
+  if (value>1e10 || value < -1e10)
     {
       if (value < 0.0)
         {

nuttx/libc/stdio/lib_lowoutstream.c

@@ -60,10 +60,7 @@ static void lowoutstream_putc(FAR struct lib_outstream_s *this, int ch)
 {
   DEBUGASSERT(this);
 
-  if (up_putc(ch) != EOF)
-    {
       this->nput++;
-    }
 }
 
 /****************************************************************************

nuttx/libc/syslog/lib_syslogstream.c

@@ -93,7 +93,7 @@ static void syslogstream_putc(FAR struct lib_outstream_s *this, int ch)
        * syslog_putc returns EOF with the errno value set;
        */
 
-      ret = syslog_putc(ch);
+      ret = 1; // syslog_putc(ch);
       if (ret != EOF)
         {
           this->nput++;