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-rw-r--r--inet/Makefile2
-rw-r--r--inet/Versions6
-rw-r--r--inet/freehostent.c27
-rw-r--r--inet/getipnodebyad.c59
4 files changed, 93 insertions, 1 deletions
diff --git a/inet/Makefile b/inet/Makefile
index 12da863..14bc027 100644
--- a/inet/Makefile
+++ b/inet/Makefile
@@ -45,7 +45,7 @@ routines := htonl htons \
rcmd rexec ruserpass \
getnetgrent_r getnetgrent \
getaliasent_r getaliasent getaliasname getaliasname_r \
- in6_addr getnameinfo if_index
+ in6_addr getnameinfo if_index getipnodebyad freehostent
tests := htontest test_ifindex tst-ntoa tst-ether_aton
diff --git a/inet/Versions b/inet/Versions
index 711d490..df97f61 100644
--- a/inet/Versions
+++ b/inet/Versions
@@ -62,4 +62,10 @@ libc {
getprotoent_r; getrpcbyname_r; getrpcbynumber_r; getrpcent_r;
getservbyname_r;
}
+ GLIBC_2.2 {
+ # f*
+ freehostent;
+ # g*
+ getipnodebyaddr;
+ }
}
diff --git a/inet/freehostent.c b/inet/freehostent.c
new file mode 100644
index 0000000..c2c1b25
--- /dev/null
+++ b/inet/freehostent.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <netdb.h>
+#include <stdlib.h>
+
+
+void
+freehostent (struct hostent *ptr)
+{
+ free (ptr);
+}
diff --git a/inet/getipnodebyad.c b/inet/getipnodebyad.c
new file mode 100644
index 0000000..d9d5ba8
--- /dev/null
+++ b/inet/getipnodebyad.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <assert.h>
+#include <errno.h>
+#include <netdb.h>
+#include <stdlib.h>
+
+#include "nsswitch.h"
+
+/* We avoid using a too large buffer in case the user is accumulating the
+ results and there is lots of unused space in the allocated buffer. */
+#define BUFLEN 512
+
+
+struct hostent *
+getipnodebyaddr (const char *addr, size_t len, int type, int *error_num)
+{
+ size_t buffer_size;
+ char *buffer;
+ struct hostent *result;
+
+ buffer_size = BUFLEN;
+ buffer = malloc (buffer_size);
+
+ while (buffer != NULL
+ && __gethostbyaddr_r (addr, len, type, (struct hostent *) buffer,
+ (char *) ((struct hostent *) buffer + 1),
+ buffer_size - sizeof (struct hostent),
+ &result, error_num) == ERANGE
+ && *error_num == NETDB_INTERNAL)
+ {
+ buffer_size += BUFLEN;
+ buffer = realloc (buffer, buffer_size);
+ if (buffer == NULL)
+ {
+ *error_num = TRY_AGAIN;
+ assert (result == NULL);
+ return NULL;
+ }
+ }
+
+ return buffer == NULL ? NULL : result;
+}