From: Bruno Haible <bruno@clisp.org>
Date: Tue, 16 Sep 2025 20:04:46 +0000 (+0200)
Subject: strerror_r-posix: Fix truncation code (regression today).
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c172e838f939f7c97daed1a80a7ec3479b4c43c6;p=thirdparty%2Fgnulib.git

strerror_r-posix: Fix truncation code (regression today).

* lib/strerror_r.c (strerror_r): Fix use of snprintf again.
---

diff --git a/ChangeLog b/ChangeLog
index 54db84a8cb..ef87fda436 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2025-09-16  Bruno Haible  <bruno@clisp.org>
+
+	strerror_r-posix: Fix truncation code (regression today).
+	* lib/strerror_r.c (strerror_r): Fix use of snprintf again.
+
 2025-09-16  Bruno Haible  <bruno@clisp.org>
 
 	inttypes-h tests: Avoid compilation error on mingw.
@@ -24,7 +29,7 @@
 
 2025-09-16  Bruno Haible  <bruno@clisp.org>
 
-	strerror_r: Ensure a trailing NUL when truncating.
+	strerror_r-posix: Ensure a trailing NUL when truncating.
 	* lib/strerror_r.c (strerror_r): Fix use of snprintf.
 
 2025-09-16  Bruno Haible  <bruno@clisp.org>
diff --git a/lib/strerror_r.c b/lib/strerror_r.c
index b67684ebe6..1e6974e327 100644
--- a/lib/strerror_r.c
+++ b/lib/strerror_r.c
@@ -450,9 +450,9 @@ strerror_r (int errnum, char *buf, size_t buflen)
 #endif
 #if defined __HAIKU__
         /* For consistency with perror().  */
-        snprintf (buf, buflen - 1, "Unknown Application Error (%d)", errnum);
+        snprintf (buf, buflen, "Unknown Application Error (%d)", errnum);
 #else
-        snprintf (buf, buflen - 1, "Unknown error %d", errnum);
+        snprintf (buf, buflen, "Unknown error %d", errnum);
 #endif
         buf[buflen - 1] = '\0';
       }