diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/getrlimit64.c | 87 |
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 |