From: Ian Lance Taylor <iant@golang.org>
Date: Wed, 30 Aug 2023 18:28:54 +0000 (-0700)
Subject: os/user: use correct size for initial call in retryWithBuffer
X-Git-Tag: go1.22rc1~1025
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9aaf5234bf652fc788782fc04a06044879b5957a;p=gostls13.git

os/user: use correct size for initial call in retryWithBuffer

We were accidentally using the sysconf parameter constant.
Change to using the value of that sysconf parameter.

Change-Id: Id7668e7cced0ce7504df99dbbff0757d29dee8c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/524555
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
---

diff --git a/src/os/user/cgo_lookup_unix.go b/src/os/user/cgo_lookup_unix.go
index 3735971eb4..402429ba4a 100644
--- a/src/os/user/cgo_lookup_unix.go
+++ b/src/os/user/cgo_lookup_unix.go
@@ -165,8 +165,8 @@ func (k bufferKind) initialSize() _C_size_t {
 // retryWithBuffer repeatedly calls f(), increasing the size of the
 // buffer each time, until f succeeds, fails with a non-ERANGE error,
 // or the buffer exceeds a reasonable limit.
-func retryWithBuffer(startSize bufferKind, f func([]byte) syscall.Errno) error {
-	buf := make([]byte, startSize)
+func retryWithBuffer(kind bufferKind, f func([]byte) syscall.Errno) error {
+	buf := make([]byte, kind.initialSize())
 	for {
 		errno := f(buf)
 		if errno == 0 {