remove realpath() compat replacement

We shipped a BSD implementation of realpath() because sftp-server
depended on its behaviour.

OpenBSD is now moving to a more strictly POSIX-compliant realpath(2),
so sftp-server now unconditionally requires its own BSD-style realpath
implementation. As such, there is no need to carry another independant
implementation in openbsd-compat.

ok dtucker@

1 files changed, 0 insertions, 28 deletions

diff --git a/configure.ac b/configure.ac
index 23f4de7ef..532bdee83 100644
--- a/configure.ac
+++ b/configure.ac
@@ -588,7 +588,6 @@ case "$host" in
               #include <fcntl.h> ]
         )
         check_for_aix_broken_getaddrinfo=1
-        AC_DEFINE([BROKEN_REALPATH], [1], [Define if you have a broken realpath.])
         AC_DEFINE([SETEUID_BREAKS_SETUID], [1],
             [Define if your platform breaks doing a seteuid before a setuid])
         AC_DEFINE([BROKEN_SETREUID], [1], [Define if your setreuid() is broken])
@@ -948,7 +947,6 @@ mips-sony-bsd|mips-sony-newsos4)
         conf_wtmp_location=/usr/adm/wtmp
         maildir=/usr/spool/mail
         AC_DEFINE([HAVE_NEXT], [1], [Define if you are on NeXT])
-        AC_DEFINE([BROKEN_REALPATH])
         AC_DEFINE([USE_PIPES])
         AC_DEFINE([BROKEN_SAVED_UIDS], [1], [Needed for NeXT])
         ;;
@@ -2024,32 +2022,6 @@ AC_CHECK_FUNCS([setresgid], [
         )
 ])
 
-AC_CHECK_FUNCS([realpath], [
-        dnl the sftp v3 spec says SSH_FXP_REALPATH will "canonicalize any given
-        dnl path name", however some implementations of realpath (and some
-        dnl versions of the POSIX spec) do not work on non-existent files,
-        dnl so we use the OpenBSD implementation on those platforms.
-        AC_MSG_CHECKING([if realpath works with non-existent files])
-        AC_RUN_IFELSE(
-                [AC_LANG_PROGRAM([[
-#include <limits.h>
-#include <stdlib.h>
-#include <errno.h>
-                ]], [[
-                char buf[PATH_MAX];
-                if (realpath("/opensshnonexistentfilename1234", buf) == NULL)
-                        if (errno == ENOENT)
-                                exit(1);
-                exit(0);
-                ]])],
-                [AC_MSG_RESULT([yes])],
-                [AC_DEFINE([BROKEN_REALPATH], [1],
-                        [realpath does not work with nonexistent files])
-                 AC_MSG_RESULT([no])],
-                [AC_MSG_WARN([cross compiling: assuming working])]
-        )
-])
-
 AC_MSG_CHECKING([for working fflush(NULL)])
 AC_RUN_IFELSE(
         [AC_LANG_PROGRAM([[#include <stdio.h>]], [[fflush(NULL); exit(0);]])],