Rich Felker
5235a2a5a4
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.
20 lines
489 B
C
20 lines
489 B
C
#include <sys/resource.h>
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#include <errno.h>
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#include "syscall.h"
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#include "libc.h"
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int getrlimit(int resource, struct rlimit *rlim)
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{
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unsigned long k_rlim[2];
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int ret = syscall(SYS_prlimit64, 0, resource, 0, rlim);
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if (!ret || errno != ENOSYS)
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return ret;
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if (syscall(SYS_getrlimit, resource, k_rlim) < 0)
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return -1;
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rlim->rlim_cur = k_rlim[0] == -1UL ? RLIM_INFINITY : k_rlim[0];
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rlim->rlim_max = k_rlim[1] == -1UL ? RLIM_INFINITY : k_rlim[1];
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return 0;
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}
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LFS64(getrlimit);
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