1 files changed, 55 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/network/lookup.h b/libc-top-half/musl/src/network/lookup.h
new file mode 100644
index 0000000..ef66272
--- /dev/null
+++ b/libc-top-half/musl/src/network/lookup.h
@@ -0,0 +1,55 @@
+#ifndef LOOKUP_H
+#define LOOKUP_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <features.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+struct aibuf {
+	struct addrinfo ai;
+	union sa {
+		struct sockaddr_in sin;
+		struct sockaddr_in6 sin6;
+	} sa;
+	volatile int lock[1];
+	short slot, ref;
+};
+
+struct address {
+	int family;
+	unsigned scopeid;
+	uint8_t addr[16];
+	int sortkey;
+};
+
+struct service {
+	uint16_t port;
+	unsigned char proto, socktype;
+};
+
+#define MAXNS 3
+
+struct resolvconf {
+	struct address ns[MAXNS];
+	unsigned nns, attempts, ndots;
+	unsigned timeout;
+};
+
+/* The limit of 48 results is a non-sharp bound on the number of addresses
+ * that can fit in one 512-byte DNS packet full of v4 results and a second
+ * packet full of v6 results. Due to headers, the actual limit is lower. */
+#define MAXADDRS 48
+#define MAXSERVS 2
+
+hidden int __lookup_serv(struct service buf[static MAXSERVS], const char *name, int proto, int socktype, int flags);
+hidden int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, int flags);
+hidden int __lookup_ipliteral(struct address buf[static 1], const char *name, int family);
+
+hidden int __get_resolv_conf(struct resolvconf *, char *, size_t);
+hidden int __res_msend_rc(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int, const struct resolvconf *);
+
+hidden int __dns_parse(const unsigned char *, int, int (*)(void *, int, const void *, int, const void *), void *);
+
+#endif