/*
* addrsbr.c -- parse addresses 822-style
*
- * $Id$
- *
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
char *dp;
#endif /* not DUMB */
- if (err && err[0]) {
+ if (err[0]) {
if (eresult)
strcpy (eresult, err);
else
return 0;
}
+
+
+/*
+ * Moved from hosts.c -- find out the official name of a host
+ */
+
+/*
+ * In the SendMail world, we really don't know what the valid
+ * hosts are. We could poke around in the sendmail.cf file, but
+ * that still isn't a guarantee. As a result, we'll say that
+ * everything is a valid host, and let SendMail worry about it.
+ */
+
+#include <h/mts.h>
+#include <netdb.h>
+
+
+char *
+OfficialName (char *name)
+{
+ unsigned char *p;
+ char *q, site[BUFSIZ];
+ struct addrinfo hints, *res;
+
+ static char buffer[BUFSIZ];
+
+ for (p = name, q = site; *p && (q - site < sizeof(site) - 1); p++, q++)
+ *q = isupper (*p) ? tolower (*p) : *p;
+ *q = '\0';
+ q = site;
+
+ if (!mh_strcasecmp (LocalName(), site))
+ return LocalName();
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_CANONNAME;
+ hints.ai_family = PF_UNSPEC;
+
+ if (getaddrinfo(q, NULL, &hints, &res) == 0) {
+ strncpy (buffer, res->ai_canonname, sizeof(buffer));
+ buffer[sizeof(buffer) - 1] = '\0';
+ freeaddrinfo(res);
+ return buffer;
+ }
+
+ strncpy (buffer, site, sizeof(buffer));
+ return buffer;
+}