diff options
Diffstat (limited to 'libc/sysdeps/linux/common/setrlimit.c')
| -rw-r--r-- | libc/sysdeps/linux/common/setrlimit.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/libc/sysdeps/linux/common/setrlimit.c b/libc/sysdeps/linux/common/setrlimit.c index 7a53e043f..58cfd469f 100644 --- a/libc/sysdeps/linux/common/setrlimit.c +++ b/libc/sysdeps/linux/common/setrlimit.c @@ -7,36 +7,64 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ +#define setrlimit64 __hide_setrlimit64 #include "syscalls.h" #include <unistd.h> #include <sys/resource.h> +#undef setrlimit64 libc_hidden_proto(setrlimit) -#ifndef __NR_ugetrlimit -/* Only wrap setrlimit if the new ugetrlimit is not present */ +/* Only wrap setrlimit if the new usetrlimit is not present and setrlimit sucks */ -#define __NR___syscall_setrlimit __NR_setrlimit -#define RMIN(x, y) ((x) < (y) ? (x) : (y)) +#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 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 -#undef RMIN +libc_hidden_def(setrlimit) -#else /* We don't need to wrap setrlimit */ -_syscall2(int, setrlimit, __rlimit_resource_t, resource, - const struct rlimit *, rlim); +#if defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 64 +strong_alias(setrlimit, setrlimit64) #endif -libc_hidden_def(setrlimit) |