Spent the day working on backwards compatability using getaddrinfo()

Moved getaddrinfo.? and gethostbyname.? from lib/ to plugins/ due to
problems with compiling into the libnagiosplug.a as it required linking
against socket libraries which are unneeded except for network based
plugins.
This code should hopefully happily work for all systems and has been tested
prior to commit on Debian GNU/Linux, SPARC Solaris 7 and SPARC Solaris 9.


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@424 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 68 insertions, 0 deletions

diff --git a/plugins/getaddrinfo.h b/plugins/getaddrinfo.h
new file mode 100644
index 0000000..5bcc884
--- /dev/null
+++ b/plugins/getaddrinfo.h
@@ -0,0 +1,68 @@
+#ifndef _getaddrinfo_h
+#define _getaddrinfo_h
+/*
+ *  This file is part of libESMTP, a library for submission of RFC 2822
+ *  formatted electronic mail messages using the SMTP protocol described
+ *  in RFC 2821.
+ *  Modified by Jeremy T. Bouse for use in Nagios plugins
+ *
+ *  Copyright (C) 2001,2002  Brian Stafford  <brian@stafford.uklinux.net>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/* Structure and prototypes aken from RFC 2553 */
+
+struct addrinfo
+  {
+    int ai_flags;               /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
+    int ai_family;              /* PF_xxx */
+    int ai_socktype;            /* SOCK_xxx */
+    int ai_protocol;            /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+    size_t ai_addrlen;          /* length of ai_addr */
+    char *ai_canonname;         /* canonical name for nodename */
+    struct sockaddr *ai_addr;   /* binary address */
+    struct addrinfo *ai_next;   /* next structure in linked list */
+  };
+
+/* Supposed to be defined in <netdb.h> */
+#define AI_PASSIVE     1       /* Socket address is intended for `bind'.  */
+#define AI_CANONNAME   2       /* Request for canonical name.  */
+#define AI_NUMERICHOST 4       /* Don't use name resolution.  */
+
+/* Supposed to be defined in <netdb.h> */
+#define EAI_ADDRFAMILY 1   /* address family for nodename not supported */
+#define EAI_AGAIN      2   /* temporary failure in name resolution */
+#define EAI_BADFLAGS   3   /* invalid value for ai_flags */
+#define EAI_FAIL       4   /* non-recoverable failure in name resolution */
+#define EAI_FAMILY     5   /* ai_family not supported */
+#define EAI_MEMORY     6   /* memory allocation failure */
+#define EAI_NODATA     7   /* no address associated with nodename */
+#define EAI_NONAME     8   /* nodename nor servname provided, or not known */
+#define EAI_SERVICE    9   /* servname not supported for ai_socktype */
+#define EAI_SOCKTYPE   10  /* ai_socktype not supported */
+#define EAI_SYSTEM     11  /* system error returned in errno */
+
+/* RFC 2553 / Posix resolver */
+int getaddrinfo (const char *nodename, const char *servname,
+                 const struct addrinfo *hints, struct addrinfo **res);
+
+/* Free addrinfo structure and associated storage */
+void freeaddrinfo (struct addrinfo *ai);
+
+/* Convert error return from getaddrinfo() to string */
+const char *gai_strerror (int code);
+
+#endif