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1 // Copyright 2019 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 //go:build darwin
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6 // +build darwin
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7
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8 package unix
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9
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10 import "unsafe"
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11
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12 // ReadDirent reads directory entries from fd and writes them into buf.
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13 func ReadDirent(fd int, buf []byte) (n int, err error) {
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14 // Final argument is (basep *uintptr) and the syscall doesn't take nil.
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15 // 64 bits should be enough. (32 bits isn't even on 386). Since the
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16 // actual system call is getdirentries64, 64 is a good guess.
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17 // TODO(rsc): Can we use a single global basep for all calls?
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18 var base = (*uintptr)(unsafe.Pointer(new(uint64)))
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19 return Getdirentries(fd, buf, base)
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20 }
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