diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/setrlimit.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/setrlimit.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/setrlimit.c b/sysdeps/unix/sysv/linux/setrlimit.c new file mode 100644 index 0000000000..78a3c33738 --- /dev/null +++ b/sysdeps/unix/sysv/linux/setrlimit.c @@ -0,0 +1,64 @@ +/* Linux setrlimit implementation (32 bits off_t). + Copyright (C) 2016 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/resource.h> +#include <sys/types.h> +#include <shlib-compat.h> + +#if !__RLIM_T_MATCHES_RLIM64_T + +/* The compatibility symbol is meant to match the old __NR_getrlimit syscall + (with broken RLIM_INFINITY definition). It should be provided iff + __NR_getrlimit and __NR_ugetrlimit are both defined. */ +# ifndef __NR_ugetrlimit +# undef SHLIB_COMPAT +# define SHLIB_COMPAT(a, b, c) 0 +# endif + +int +__setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim) +{ +# ifdef __NR_prlimit64 + struct rlimit64 rlim64; + + if (rlim->rlim_cur == RLIM_INFINITY) + rlim64.rlim_cur = RLIM64_INFINITY; + else + rlim64.rlim_cur = rlim->rlim_cur; + if (rlim->rlim_max == RLIM_INFINITY) + rlim64.rlim_max = RLIM64_INFINITY; + else + rlim64.rlim_max = rlim->rlim_max; + + int res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL); + if (res == 0 || errno != ENOSYS) + return res; +# endif + return INLINE_SYSCALL_CALL (setrlimit, resource, rlim); +} + +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) +strong_alias (__setrlimit, __setrlimit_1) +compat_symbol (libc, __setrlimit, setrlimit, GLIBC_2_0); +versioned_symbol (libc, __setrlimit_1, setrlimit, GLIBC_2_2); +# else +weak_alias (__setrlimit, setrlimit) +# endif + +#endif /* __RLIM_T_MATCHES_RLIM64_T */ |