conclusion

1 files changed, 20 insertions, 0 deletions

diff --git a/05/musl-0.6.0/src/network/res_query.c b/05/musl-0.6.0/src/network/res_query.c
new file mode 100644
index 0000000..4ebeb10
--- /dev/null
+++ b/05/musl-0.6.0/src/network/res_query.c
@@ -0,0 +1,20 @@
+#include <netdb.h>
+#include "__dns.h"
+
+int res_query(const char *name, int class, int type, unsigned char *dest, int len)
+{
+	if (class != 1 || len < 512)
+		return -1;
+	switch(__dns_doqueries(dest, name, &type, 1)) {
+	case EAI_NONAME:
+		h_errno = HOST_NOT_FOUND;
+		return -1;
+	case EAI_AGAIN:
+		h_errno = TRY_AGAIN;
+		return -1;
+	case EAI_FAIL:
+		h_errno = NO_RECOVERY;
+		return -1;
+	}
+	return 512;
+}