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-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c b/REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c
new file mode 100644
index 0000000000..56af3c0646
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c
@@ -0,0 +1,87 @@
+/* Linux getrlimit64 implementation (64 bits rlim_t).
+   Copyright (C) 2010-2017 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <shlib-compat.h>
+
+/* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
+   linking getlimit64 to {__}getrlimit does not throw a type error.  */
+#undef getrlimit
+#undef __getrlimit
+#define getrlimit getrlimit_redirect
+#define __getrlimit __getrlimit_redirect
+#include <sys/resource.h>
+#undef getrlimit
+#undef __getrlimit
+
+/* Put the soft and hard limits for RESOURCE in *RLIMITS.
+   Returns 0 if successful, -1 if not (and sets errno).  */
+int
+__getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
+{
+  return INLINE_SYSCALL_CALL (prlimit64, 0, resource, NULL, rlimits);
+}
+libc_hidden_def (__getrlimit64)
+
+#if __RLIM_T_MATCHES_RLIM64_T
+/* If both rlim_t and rlimt64_t are essentially the same type we can use
+   alias both interfaces.  */
+strong_alias (__getrlimit64, __GI_getrlimit)
+strong_alias (__getrlimit64, __GI___getrlimit)
+strong_alias (__getrlimit64, __getrlimit)
+weak_alias (__getrlimit64, getrlimit)
+/* And there is no need for compat symbols.  */
+# undef SHLIB_COMPAT
+# define SHLIB_COMPAT(a, b, c) 0
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)
+/* Back compatible 2GiB limited rlimit.  */
+extern int __new_getrlimit (enum __rlimit_resource, struct rlimit *);
+
+int
+attribute_compat_text_section
+__old_getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
+{
+# if __RLIM_T_MATCHES_RLIM64_T
+#  define rlimits32 (*rlimits)
+# else
+  struct rlimit rlimits32;
+# endif
+
+  if (__new_getrlimit (resource, &rlimits32) < 0)
+    return -1;
+
+  if (rlimits32.rlim_cur == RLIM_INFINITY)
+    rlimits->rlim_cur = RLIM64_INFINITY >> 1;
+  else
+    rlimits->rlim_cur = rlimits32.rlim_cur;
+  if (rlimits32.rlim_max == RLIM_INFINITY)
+    rlimits->rlim_max = RLIM64_INFINITY >> 1;
+  else
+    rlimits->rlim_max = rlimits32.rlim_max;
+
+  return 0;
+}
+versioned_symbol (libc, __getrlimit64, getrlimit64, GLIBC_2_2);
+compat_symbol (libc, __old_getrlimit64, getrlimit64, GLIBC_2_1);
+#else
+weak_alias (__getrlimit64, getrlimit64)
+libc_hidden_weak (getrlimit64)
+#endif