/* vi: set sw=4 ts=4: */ /* * setrlimit() for uClibc * * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #define setrlimit64 __hide_setrlimit64 #include <sys/syscall.h> #include <unistd.h> #include <sys/resource.h> #undef setrlimit64 /* Only wrap setrlimit if the new usetrlimit is not present and setrlimit sucks */ #if defined(__NR_usetrlimit) /* just call usetrlimit() */ # define __NR___syscall_usetrlimit __NR_usetrlimit static __always_inline _syscall2(int, __syscall_usetrlimit, enum __rlimit_resource, resource, const struct rlimit *, rlim) int setrlimit(__rlimit_resource_t resource, struct rlimit *rlimits) { return (__syscall_usetrlimit(resource, rlimits)); } #elif !defined(__UCLIBC_HANDLE_OLDER_RLIMIT__) /* We don't need to wrap setrlimit() */ _syscall2(int, setrlimit, __rlimit_resource_t, resource, const struct rlimit *, rlim) #else /* we have to handle old style setrlimit() */ # define __NR___syscall_setrlimit __NR_setrlimit static __always_inline _syscall2(int, __syscall_setrlimit, int, resource, const struct rlimit *, rlim) int setrlimit(__rlimit_resource_t resource, const struct rlimit *rlimits) { struct rlimit rlimits_small; if (rlimits == NULL) { __set_errno(EINVAL); return -1; } /* We might have to correct the limits values. Since the old values * were signed the new values might be too large. */ # define RMIN(x, y) ((x) < (y) ? (x) : (y)) rlimits_small.rlim_cur = RMIN((unsigned long int) rlimits->rlim_cur, RLIM_INFINITY >> 1); rlimits_small.rlim_max = RMIN((unsigned long int) rlimits->rlim_max, RLIM_INFINITY >> 1); #undef RMIN return (__syscall_setrlimit(resource, &rlimits_small)); } #endif libc_hidden_def(setrlimit) #if defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 64 strong_alias(setrlimit, setrlimit64) #endif