From 570c98b78b8d3afcc30486cac35a8bd18e36c097 Mon Sep 17 00:00:00 2001
From: Fedor Lapshin <fe.lap.prog@gmail.com>
Date: Fri, 29 Mar 2024 03:21:11 +0300
Subject: getgrouplist.3: EXAMPLES: Fix error handling for getpwnam(3)

Signed-off-by: Fedor Lapshin <fe.lap.prog@gmail.com>
Co-developed-by: Alejandro Colomar <alx@kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 man3/getgrouplist.3 | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/man3/getgrouplist.3 b/man3/getgrouplist.3
index 5e11b426b..61d3b7a9b 100644
--- a/man3/getgrouplist.3
+++ b/man3/getgrouplist.3
@@ -134,6 +134,7 @@ ngroups = 3
 \&
 .\" SRC BEGIN (getgrouplist.c)
 .EX
+#include <errno.h>
 #include <grp.h>
 #include <pwd.h>
 #include <stdio.h>
@@ -162,10 +163,14 @@ main(int argc, char *argv[])
 \&
     /* Fetch passwd structure (contains first group ID for user). */
 \&
+    errno = 0;
     pw = getpwnam(argv[1]);
     if (pw == NULL) {
-        perror("getpwnam");
-        exit(EXIT_SUCCESS);
+        if (errno)
+            perror("getpwnam");
+        else
+            fprintf(stderr, "no such user\en");
+        exit(EXIT_FAILURE);
     }
 \&
     /* Retrieve group list. */
-- 
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