File pacemaker#3379-0001-Low-tools-Fix-argument-validation-for-crm_attribute-.patch of Package pacemaker.36873

From 88d94635bc1d1387863d7454ec99c6de70abf439 Mon Sep 17 00:00:00 2001
From: Chris Lumens <clumens@redhat.com>
Date: Thu, 29 Feb 2024 15:50:04 -0500
Subject: [PATCH] Low: tools: Fix argument validation for crm_attribute update.

Previously (perhaps as far back as when crm_attribute was introduced) we
haven't done any validation on whether an attribute name was given along
with the -v option specifying the new attribute value.  Instead we just
asserted.

Instead, check that a name or pattern was given and if not, display an
error message.  The other two asserts can go, as well.  options.type
will always be set by the call to set_type(), and options.attr_value
will be set if -v was given on the command line.

Fixes T765
---
 tools/crm_attribute.c | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

Index: pacemaker-2.0.5+20201202.ba59be712/tools/crm_attribute.c
===================================================================
--- pacemaker-2.0.5+20201202.ba59be712.orig/tools/crm_attribute.c
+++ pacemaker-2.0.5+20201202.ba59be712/tools/crm_attribute.c
@@ -85,11 +85,11 @@ static pcmk__cli_option_t long_options[]
     },
     {
         "update", required_argument, NULL, 'v',
-        "Update the value of the attribute/option", pcmk__option_default
+        "Update the value of the attribute/option (with -n or -P)", pcmk__option_default
     },
     {
         "delete", no_argument, NULL, 'D',
-        "\tDelete the attribute/option", pcmk__option_default
+        "\tDelete the attribute/option (with -n or -P)", pcmk__option_default
     },
     {
         "-spacer-", no_argument, NULL, '-',
@@ -242,6 +242,14 @@ static pcmk__cli_option_t long_options[]
     { 0, 0, 0, 0 }
 };
 
+static bool
+update_used_correctly(void)
+{
+    return (command != 'v')
+           || (attr_name != NULL)
+           || (attr_pattern != NULL);
+}
+
 int
 main(int argc, char **argv)
 {
@@ -401,6 +409,12 @@ main(int argc, char **argv)
         crm_exit(CRM_EX_USAGE);
     }
 
+    if (!update_used_correctly()) {
+        fprintf(stderr,
+                    "Error: must specify attribute name or pattern to update\n");
+        crm_exit(CRM_EX_USAGE);
+    }
+
     if (attr_pattern) {
         if (((command != 'v') && (command != 'D'))
             || !pcmk__str_eq(type, XML_CIB_TAG_STATUS, pcmk__str_casei)) {