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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/network/res_query.c
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initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/network/res_query.c')
-rw-r--r--src/network/res_query.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/network/res_query.c b/src/network/res_query.c
new file mode 100644
index 00000000..4ebeb102
--- /dev/null
+++ b/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;
+}