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| author | Rich Felker <dalias@aerifal.cx> | 2012-01-20 22:30:52 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-01-20 22:30:52 -0500 |
| commit | 5235a2a5a4d372cf7ebda7ccadf0325c7d4bad82 (patch) | |
| tree | 7a150780fcaa85167a7d920dc2e6855a54bb7f85 /src/misc/setrlimit.c | |
| parent | 26f38328d66f4bd525e9d21a9245ba4c54d6ca10 (diff) | |
| download | musl-5235a2a5a4d372cf7ebda7ccadf0325c7d4bad82.tar.gz | |
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.
Diffstat (limited to 'src/misc/setrlimit.c')
| -rw-r--r-- | src/misc/setrlimit.c | 8 |
1 files changed, 7 insertions, 1 deletions
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); } |