glibc's gethost*_r() is different to anyone elses.

lib/bind/configure.in

@@ -18,7 +18,7 @@ AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
 esyscmd([sed "s/^/# /" COPYRIGHT])dnl
 AC_DIVERT_POP()dnl
 
-AC_REVISION($Revision: 1.67 $)
+AC_REVISION($Revision: 1.68 $)
 
 AC_INIT(resolv/herror.c)
 AC_PREREQ(2.13)
@@ -1515,6 +1515,7 @@ HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
 HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
 HOST_R_OK="#define HOST_R_OK hptr"
 HOST_R_RETURN="#define HOST_R_RETURN struct hostent *"
+HOST_R_SETANSWER=#undef HOST_R_SETANSWER"
 HOSTENT_DATA="#undef HOSTENT_DATA"
 ]
 ,
@@ -1531,9 +1532,29 @@ HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS HOST_R_ARGS"
 HOST_R_ERRNO="#define HOST_R_ERRNO NULL"
 HOST_R_OK="#define HOST_R_OK 0"
 HOST_R_RETURN="#define HOST_R_RETURN int"
+HOST_R_SETANSWER=#undef HOST_R_SETANSWER"
 HOSTENT_DATA="#define HOSTENT_DATA 1"
 ],
-))
+AC_TRY_COMPILE([
+#define __USE_MISC
+#include <netdb.h>
+extern int gethostbyname_r __P ((__const char *,
+                                 struct hostent *,
+                                 char *, size_t,
+                                 struct hostent **,
+                                 int *));
+],,[
+HOST_R_ARGS="#define HOST_R_ARGS char *buf, int buflen, struct hostent **answerp, int *h_errnop"
+HOST_R_BAD="#define HOST_R_BAD ERANGE"
+HOST_R_COPY="#define HOST_R_COPY buf, buflen"
+HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
+HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
+HOST_R_OK="#define HOST_R_OK 0"
+HOST_R_RETURN="#define HOST_R_RETURN int"
+HOST_R_SETANSWER=#define HOST_R_SETANSWER 1"
+HOSTENT_DATA="#undef HOSTENT_DATA"
+],
+)))
 ,
 HOST_R_ARGS="#define HOST_R_ARGS char *buf, int buflen, int *h_errnop"
 HOST_R_BAD="#define HOST_R_BAD NULL"
@@ -1542,6 +1563,7 @@ HOST_R_COPY_ARGS="#define HOST_R_COPY_ARGS char *buf, int buflen"
 HOST_R_ERRNO="#define HOST_R_ERRNO *h_errnop = h_errno"
 HOST_R_OK="#define HOST_R_OK hptr"
 HOST_R_RETURN="#define HOST_R_RETURN struct hostent *"
+HOST_R_SETANSWER=#undef HOST_R_SETANSWER"
 HOSTENT_DATA="#undef HOSTENT_DATA"
 )
 AC_SUBST(HOST_R_ARGS)
@@ -1551,6 +1573,7 @@ AC_SUBST(HOST_R_COPY_ARGS)
 AC_SUBST(HOST_R_ERRNO)
 AC_SUBST(HOST_R_OK)
 AC_SUBST(HOST_R_RETURN)
+AC_SUBST(HOST_R_SETANSWER)
 AC_SUBST(HOSTENT_DATA)
 
 AC_CHECK_FUNC(endhostent_r,
@@ -1888,6 +1911,21 @@ SERV_R_OK="#define SERV_R_OK sptr"
 SERV_R_RETURN="#define SERV_R_RETURN struct servent *"
 ]
 ,
+AC_TRY_COMPILE([
+#include <netdb.h>
+struct servent *
+getservent_r __P ((struct servent *, char *, size_t, struct servent **));
+],[return (0);],
+[
+SERV_R_ARGS="#define SERV_R_ARGS char *buf, int buflen, struct servent **answer"
+SERV_R_BAD="#define SERV_R_BAD (-1)"
+SERV_R_COPY="#define SERV_R_COPY buf, buflen"
+SERV_R_COPY_ARGS="#define SERV_R_COPY_ARGS SERV_R_ARGS"
+SERV_R_OK="#define SERV_R_OK (0)"
+SERV_R_RETURN="#define SERV_R_RETURN 1"
+]
+,
+)
 )
 ,
 SERV_R_ARGS="#define SERV_R_ARGS char *buf, int buflen"

lib/bind/irs/gethostent_r.c

@@ -16,7 +16,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$Id: gethostent_r.c,v 1.3 2001/07/15 23:29:43 marka Exp $";
+static const char rcsid[] = "$Id: gethostent_r.c,v 1.4 2001/07/16 04:23:00 marka Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <port_before.h>
@@ -40,26 +40,50 @@ copy_hostent(struct hostent *, struct hostent *, HOST_R_COPY_ARGS);
 HOST_R_RETURN
 gethostbyname_r(const char *name,  struct hostent *hptr, HOST_R_ARGS) {
 	struct hostent *he = gethostbyname(name);
+#ifdef HOST_R_SETANSWER
+	int n = 0;
+#endif
 
 	HOST_R_ERRNO;
 
+#ifdef HOST_R_SETANSWER
+	if (he == NULL || (n = copy_hostent(he, hptr, HOST_R_COPY)) == 0)
+		*answerp = NULL;
+	else
+		*answerp = hptr;
+	
+	return (n);
+#else
 	if (he == NULL)
 		return (HOST_R_BAD);
 
 	return (copy_hostent(he, hptr, HOST_R_COPY));
+#endif
 }
 
 HOST_R_RETURN
 gethostbyaddr_r(const char *addr, int len, int type,
 		struct hostent *hptr, HOST_R_ARGS) {
 	struct hostent *he = gethostbyaddr(addr, len, type);
+#ifdef HOST_R_SETANSWER
+	int n = 0;
+#endif
 
 	HOST_R_ERRNO;
 
+#ifdef HOST_R_SETANSWER
+	if (he == NULL || (n = copy_hostent(he, hptr, HOST_R_COPY)) == 0)
+		*answerp = NULL;
+	else
+		*answerp = hptr;
+	
+	return (n);
+#else
 	if (he == NULL)
 		return (HOST_R_BAD);
 
 	return (copy_hostent(he, hptr, HOST_R_COPY));
+#endif
 }
 
 /*
@@ -71,13 +95,25 @@ gethostbyaddr_r(const char *addr, int len, int type,
 HOST_R_RETURN
 gethostent_r(struct hostent *hptr, HOST_R_ARGS) {
 	struct hostent *he = gethostent();
+#ifdef HOST_R_SETANSWER
+	int n = 0;
+#endif
 
 	HOST_R_ERRNO;
 
+#ifdef HOST_R_SETANSWER
+	if (he == NULL || (n = copy_hostent(he, hptr, HOST_R_COPY)) == 0)
+		*answerp = NULL;
+	else
+		*answerp = hptr;
+	
+	return (n);
+#else
 	if (he == NULL)
 		return (HOST_R_BAD);
 
 	return (copy_hostent(he, hptr, HOST_R_COPY));
+#endif
 }
 
 HOST_R_SET_RETURN