42 lines
1.1 KiB
Diff
42 lines
1.1 KiB
Diff
From cb569337f22de160d61df0bdb7c06f17517835ab Mon Sep 17 00:00:00 2001
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From: zhangshaoning <zhangshaoning@uniontech.com>
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Date: Thu, 16 Jan 2025 16:30:09 +0800
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Subject: [PATCH] limit username length to 32
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---
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lib/chkname.c | 4 ++--
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lib/chkname.h | 4 ++++
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2 files changed, 6 insertions(+), 2 deletions(-)
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diff --git a/lib/chkname.c b/lib/chkname.c
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index 2b83361..ae6180f 100644
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--- a/lib/chkname.c
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+++ b/lib/chkname.c
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@@ -75,9 +75,9 @@ static bool is_valid_name (const char *name)
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bool is_valid_user_name (const char *name)
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{
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/*
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- * User names length are limited by the kernel
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+ * User names length are limited by USER_NAME_MAX_LENGTH
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*/
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- if (strlen (name) > sysconf(_SC_LOGIN_NAME_MAX)) {
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+ if (strlen (name) > USER_NAME_MAX_LENGTH) {
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return false;
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}
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diff --git a/lib/chkname.h b/lib/chkname.h
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index 0771347..4af8f32 100644
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--- a/lib/chkname.h
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+++ b/lib/chkname.h
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@@ -25,3 +25,7 @@ extern bool is_valid_user_name (const char *name);
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extern bool is_valid_group_name (const char *name);
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#endif
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+
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+#ifndef USER_NAME_MAX_LENGTH
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+#define USER_NAME_MAX_LENGTH 32
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+#endif
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--
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2.18.2
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