From 5235a2a5a4d372cf7ebda7ccadf0325c7d4bad82 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Fri, 20 Jan 2012 22:30:52 -0500 Subject: use prlimit syscall for getrlimit/setrlimit this allows the full range of 64-bit limit arguments even on 32-bit systems. fallback to the old syscalls on old kernels that don't support prlimit. --- src/misc/setrlimit.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'src/misc/setrlimit.c') diff --git a/src/misc/setrlimit.c b/src/misc/setrlimit.c index bf03fe6f..ddc13e98 100644 --- a/src/misc/setrlimit.c +++ b/src/misc/setrlimit.c @@ -3,9 +3,15 @@ #include "syscall.h" #include "libc.h" +#define MIN(a, b) ((a)<(b) ? (a) : (b)) + int __setrlimit(int resource, const struct rlimit *rlim) { - long k_rlim[2] = { rlim->rlim_cur, rlim->rlim_max }; + unsigned long k_rlim[2]; + int ret = __syscall(SYS_prlimit64, 0, resource, rlim, 0); + if (ret != -ENOSYS) return ret; + k_rlim[0] = MIN(rlim->rlim_cur, -1UL); + k_rlim[1] = MIN(rlim->rlim_max, -1UL); return __syscall(SYS_setrlimit, resource, k_rlim); } -- cgit 1.4.1