net: env: getenv_ip use resolv

Introduce getenv_ip_dns to be able to do not do the resolv when using it in
resolv for the nameserver (Do not loop).

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

2 files changed, 7 insertions, 4 deletions

diff --git a/net/dns.c b/net/dns.c
index 3c7aa5fa1f..fb1178ac45 100644
--- a/net/dns.c
+++ b/net/dns.c
@@ -205,7 +205,7 @@ IPaddr_t resolv(char *host)
 
 	dns_state = STATE_INIT;
 
-	ip = getenv_ip("nameserver");
+	ip = getenv_ip_dns("nameserver", 0);
 	if (!ip)
 		return 0;
 
diff --git a/net/net.c b/net/net.c
index 2752884716..39db75e7a9 100644
--- a/net/net.c
+++ b/net/net.c
@@ -127,7 +127,7 @@ int string_to_ip(const char *s, IPaddr_t *ip)
 	return 0;
 }
 
-IPaddr_t getenv_ip(const char *name)
+IPaddr_t getenv_ip_dns(const char *name, int dns)
 {
 	IPaddr_t ip;
 	const char *var = getenv(name);
@@ -135,10 +135,13 @@ IPaddr_t getenv_ip(const char *name)
 	if (!var)
 		return 0;
 
-	if (string_to_ip(var, &ip))
+	if (!string_to_ip(var, &ip))
+		return ip;
+
+	if (!dns)
 		return 0;
 
-	return ip;
+	return resolv((char*)var);
 }
 
 int setenv_ip(const char *name, IPaddr_t ip)