add netdb.h from libphoenix by Jan Sikorski and Michal Miroslaw

src/netdb-compat.h

@@ -0,0 +1,140 @@
+/*
+ * Phoenix-RTOS
+ *
+ * libphoenix
+ *
+ * netdb.h
+ *
+ * Copyright 2018 Phoenix Systems
+ * Author: Jan Sikorski, Michal Miroslaw
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ */
+
+#ifndef _LIBPHOENIX_NETDB_H_
+#define _LIBPHOENIX_NETDB_H_
+
+
+#include <sys/socktypes.h>
+#include <netinet/intypes.h>
+#include <stdint.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define AI_PASSIVE     (1 << 0)
+#define AI_CANONNAME   (1 << 1)
+#define AI_NUMERICHOST (1 << 2)
+#define AI_NUMERICSERV (1 << 3)
+#define AI_V4MAPPED    (1 << 4)
+#define AI_ALL         (1 << 5)
+#define AI_ADDRCONFIG  (1 << 6)
+
+
+#define NI_NOFQDN       (1 << 0)
+#define NI_NUMERICHOST  (1 << 1)
+#define NI_NAMEREQD     (1 << 2)
+#define NI_NUMERICSERV  (1 << 3)
+#define NI_NUMERICSCOPE (1 << 4)
+#define NI_DGRAM        (1 << 5)
+
+#define NI_MAXHOST 1025
+#define NI_MAXSERV 32
+
+
+#define EAI_BADFLAGS -1
+#define EAI_NONAME   -2
+#define EAI_AGAIN    -3
+#define EAI_FAIL     -4
+#define EAI_FAMILY   -6
+#define EAI_SOCKTYPE -7
+#define EAI_SERVICE  -8
+#define EAI_MEMORY   -10
+#define EAI_SYSTEM   -11
+#define EAI_OVERFLOW -12
+/* non-POSIX */
+#define EAI_NODATA -5
+
+struct hostent {
+	char  *h_name;
+	char **h_aliases;
+	int    h_addrtype;
+	int    h_length;
+	char **h_addr_list;
+};
+
+
+struct addrinfo {
+	int              ai_flags;
+	int              ai_family;
+	int              ai_socktype;
+	int              ai_protocol;
+	socklen_t        ai_addrlen;
+	struct sockaddr *ai_addr;
+	char            *ai_canonname;
+	struct addrinfo *ai_next;
+};
+
+
+enum {
+	RESOLVED_OK,
+	HOST_NOT_FOUND,
+	TRY_AGAIN,
+	NO_RECOVERY,
+	NO_DATA,
+};
+
+
+struct servent {
+	char  *s_name;
+	char **s_aliases;
+	int    s_port;
+	char  *s_proto;
+};
+
+
+struct protoent {
+	char *p_name;
+	char **p_aliases;
+	int p_proto;
+};
+
+
+/* FIXME: not thread-safe */
+extern int h_errno;
+extern const char *hstrerror(int err);
+
+struct servent *getservbyname(const char *name, const char *proto);
+struct servent *getservbyport(int port, const char *proto);
+
+struct hostent *gethostbyname(const char *name);
+struct hostent *gethostbyaddr(const void *addr, socklen_t len, int type);
+
+
+int getnameinfo(const struct sockaddr *addr, socklen_t addrlen,
+                char *host, socklen_t hostlen,
+                char *serv, socklen_t servlen, int flags);
+int getaddrinfo(const char *node, const char *service,
+                const struct addrinfo *hints,
+                struct addrinfo **res);
+void freeaddrinfo(struct addrinfo *res);
+const char *gai_strerror(int errcode);
+
+
+extern struct protoent *getprotobyname(const char *name);
+
+
+extern struct protoent *getprotobynumber(int proto);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif