diff --git a/lib/common/output_html.c b/lib/common/output_html.c
index 73ef8c23b6..e3874e9401 100644
--- a/lib/common/output_html.c
+++ b/lib/common/output_html.c
@@ -1,475 +1,476 @@
 /*
  * Copyright 2019-2022 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 
 #include <ctype.h>
 #include <libxml/HTMLtree.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 
 #include <crm/common/cmdline_internal.h>
 #include <crm/common/xml.h>
 
 static const char *stylesheet_default =
     ".bold { font-weight: bold }\n"
 
     ".online { color: green }\n"
     ".offline { color: red }\n"
     ".maint { color: blue }\n"
     ".standby { color: blue }\n"
     ".health_red { color: red }\n"
     ".health_yellow { color: GoldenRod }\n"
 
     ".rsc-failed { color: red }\n"
     ".rsc-failure-ignored { color: DarkGreen }\n"
     ".rsc-managed { color: blue }\n"
     ".rsc-multiple { color: orange }\n"
     ".rsc-ok { color: green }\n"
 
     ".warning { color: red; font-weight: bold }";
 
 static gboolean cgi_output = FALSE;
 static char *stylesheet_link = NULL;
 static char *title = NULL;
 static GSList *extra_headers = NULL;
 
 GOptionEntry pcmk__html_output_entries[] = {
     { "html-cgi", 0, 0, G_OPTION_ARG_NONE, &cgi_output,
       "Add CGI headers (requires --output-as=html)",
       NULL },
 
     { "html-stylesheet", 0, 0, G_OPTION_ARG_STRING, &stylesheet_link,
       "Link to an external stylesheet (requires --output-as=html)",
       "URI" },
 
     { "html-title", 0, 0, G_OPTION_ARG_STRING, &title,
       "Specify a page title (requires --output-as=html)",
       "TITLE" },
 
     { NULL }
 };
 
 /* The first several elements of this struct must be the same as the first
  * several elements of private_data_s in lib/common/output_xml.c.  This
  * struct gets passed to a bunch of the pcmk__output_xml_* functions which
  * assume an XML private_data_s.  Keeping them laid out the same means this
  * still works.
  */
 typedef struct private_data_s {
     /* Begin members that must match the XML version */
     xmlNode *root;
     GQueue *parent_q;
     GSList *errors;
     /* End members that must match the XML version */
 } private_data_t;
 
 static void
 html_free_priv(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     if (out == NULL || out->priv == NULL) {
         return;
     }
 
     priv = out->priv;
 
     xmlFreeNode(priv->root);
     g_queue_free(priv->parent_q);
     g_slist_free(priv->errors);
     free(priv);
     out->priv = NULL;
 }
 
 static bool
 html_init(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL);
 
     /* If html_init was previously called on this output struct, just return. */
     if (out->priv != NULL) {
         return true;
     } else {
         out->priv = calloc(1, sizeof(private_data_t));
         if (out->priv == NULL) {
             return false;
         }
 
         priv = out->priv;
     }
 
     priv->parent_q = g_queue_new();
 
     priv->root = create_xml_node(NULL, "html");
     xmlCreateIntSubset(priv->root->doc, (pcmkXmlStr) "html", NULL, NULL);
 
     crm_xml_add(priv->root, "lang", "en");
     g_queue_push_tail(priv->parent_q, priv->root);
     priv->errors = NULL;
 
     pcmk__output_xml_create_parent(out, "body", NULL);
 
     return true;
 }
 
 static void
 add_error_node(gpointer data, gpointer user_data) {
     char *str = (char *) data;
     pcmk__output_t *out = (pcmk__output_t *) user_data;
     out->list_item(out, NULL, "%s", str);
 }
 
 static void
 html_finish(pcmk__output_t *out, crm_exit_t exit_status, bool print, void **copy_dest) {
     private_data_t *priv = NULL;
     htmlNodePtr head_node = NULL;
     htmlNodePtr charset_node = NULL;
 
     CRM_ASSERT(out != NULL);
 
     priv = out->priv;
 
     /* If root is NULL, html_init failed and we are being called from pcmk__output_free
      * in the pcmk__output_new path.
      */
     if (priv == NULL || priv->root == NULL) {
         return;
     }
 
     if (cgi_output && print) {
         fprintf(out->dest, "Content-Type: text/html\n\n");
     }
 
     /* Add the head node last - it's not needed earlier because it doesn't contain
      * anything else that the user could add, and we want it done last to pick up
      * any options that may have been given.
      */
     head_node = xmlNewNode(NULL, (pcmkXmlStr) "head");
 
     if (title != NULL ) {
         pcmk_create_xml_text_node(head_node, "title", title);
     } else if (out->request != NULL) {
         pcmk_create_xml_text_node(head_node, "title", out->request);
     }
 
     charset_node = create_xml_node(head_node, "meta");
     crm_xml_add(charset_node, "charset", "utf-8");
 
     /* Add any extra header nodes the caller might have created. */
     for (int i = 0; i < g_slist_length(extra_headers); i++) {
         xmlAddChild(head_node, xmlCopyNode(g_slist_nth_data(extra_headers, i), 1));
     }
 
     /* Stylesheets are included two different ways.  The first is via a built-in
      * default (see the stylesheet_default const above).  The second is via the
      * html-stylesheet option, and this should obviously be a link to a
      * stylesheet.  The second can override the first.  At least one should be
      * given.
      */
     pcmk_create_xml_text_node(head_node, "style", stylesheet_default);
 
     if (stylesheet_link != NULL) {
         htmlNodePtr link_node = create_xml_node(head_node, "link");
         pcmk__xe_set_props(link_node, "rel", "stylesheet",
                            "href", stylesheet_link,
                            NULL);
     }
 
     xmlAddPrevSibling(priv->root->children, head_node);
 
     if (g_slist_length(priv->errors) > 0) {
         out->begin_list(out, "Errors", NULL, NULL);
         g_slist_foreach(priv->errors, add_error_node, (gpointer) out);
         out->end_list(out);
     }
 
     if (print) {
         htmlDocDump(out->dest, priv->root->doc);
     }
 
     if (copy_dest != NULL) {
         *copy_dest = copy_xml(priv->root);
     }
 
     g_slist_free_full(extra_headers, (GDestroyNotify) xmlFreeNode);
     extra_headers = NULL;
 }
 
 static void
 html_reset(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
 
     out->dest = freopen(NULL, "w", out->dest);
     CRM_ASSERT(out->dest != NULL);
 
     html_free_priv(out);
     html_init(out);
 }
 
 static void
 html_subprocess_output(pcmk__output_t *out, int exit_status,
                        const char *proc_stdout, const char *proc_stderr) {
     char *rc_buf = NULL;
 
     CRM_ASSERT(out != NULL);
 
     rc_buf = crm_strdup_printf("Return code: %d", exit_status);
 
     pcmk__output_create_xml_text_node(out, "h2", "Command Output");
     pcmk__output_create_html_node(out, "div", NULL, NULL, rc_buf);
 
     if (proc_stdout != NULL) {
         pcmk__output_create_html_node(out, "div", NULL, NULL, "Stdout");
         pcmk__output_create_html_node(out, "div", NULL, "output", proc_stdout);
     }
     if (proc_stderr != NULL) {
         pcmk__output_create_html_node(out, "div", NULL, NULL, "Stderr");
         pcmk__output_create_html_node(out, "div", NULL, "output", proc_stderr);
     }
 
     free(rc_buf);
 }
 
 static void
 html_version(pcmk__output_t *out, bool extended) {
     CRM_ASSERT(out != NULL);
 
     pcmk__output_create_xml_text_node(out, "h2", "Version Information");
     pcmk__output_create_html_node(out, "div", NULL, NULL, "Program: Pacemaker");
     pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Version: %s", PACEMAKER_VERSION));
     pcmk__output_create_html_node(out, "div", NULL, NULL,
                                   "Author: Andrew Beekhof and "
                                   "the Pacemaker project contributors");
     pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Build: %s", BUILD_VERSION));
     pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Features: %s", CRM_FEATURES));
 }
 
 G_GNUC_PRINTF(2, 3)
 static void
 html_err(pcmk__output_t *out, const char *format, ...) {
     private_data_t *priv = NULL;
     int len = 0;
     char *buf = NULL;
     va_list ap;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     va_start(ap, format);
     len = vasprintf(&buf, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     priv->errors = g_slist_append(priv->errors, buf);
 }
 
 G_GNUC_PRINTF(2, 3)
 static int
 html_info(pcmk__output_t *out, const char *format, ...) {
     return pcmk_rc_no_output;
 }
 
 static void
 html_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
     htmlNodePtr node = NULL;
 
     CRM_ASSERT(out != NULL);
 
     node = pcmk__output_create_html_node(out, "pre", NULL, NULL, buf);
     crm_xml_add(node, "lang", "xml");
 }
 
 G_GNUC_PRINTF(4, 5)
 static void
 html_begin_list(pcmk__output_t *out, const char *singular_noun,
                 const char *plural_noun, const char *format, ...) {
     int q_len = 0;
     private_data_t *priv = NULL;
     xmlNodePtr node = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     /* If we are already in a list (the queue depth is always at least
      * one because of the <html> element), first create a <li> element
      * to hold the <h2> and the new list.
      */
     q_len = g_queue_get_length(priv->parent_q);
     if (q_len > 2) {
         pcmk__output_xml_create_parent(out, "li", NULL);
     }
 
     if (format != NULL) {
         va_list ap;
         char *buf = NULL;
         int len;
 
         va_start(ap, format);
         len = vasprintf(&buf, format, ap);
         va_end(ap);
         CRM_ASSERT(len >= 0);
 
         if (q_len > 2) {
             pcmk__output_create_xml_text_node(out, "h3", buf);
         } else {
             pcmk__output_create_xml_text_node(out, "h2", buf);
         }
 
         free(buf);
     }
 
     node = pcmk__output_xml_create_parent(out, "ul", NULL);
     g_queue_push_tail(priv->parent_q, node);
 }
 
 G_GNUC_PRINTF(3, 4)
 static void
 html_list_item(pcmk__output_t *out, const char *name, const char *format, ...) {
     htmlNodePtr item_node = NULL;
     va_list ap;
     char *buf = NULL;
     int len;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     len = vasprintf(&buf, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     item_node = pcmk__output_create_xml_text_node(out, "li", buf);
     free(buf);
 
     if (name != NULL) {
         crm_xml_add(item_node, "class", name);
     }
 }
 
 static void
 html_increment_list(pcmk__output_t *out) {
     /* This function intentially left blank */
 }
 
 static void
 html_end_list(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     /* Remove the <ul> tag. */
     g_queue_pop_tail(priv->parent_q);
     pcmk__output_xml_pop_parent(out);
 
     /* Remove the <li> created for nested lists. */
     if (g_queue_get_length(priv->parent_q) > 2) {
         pcmk__output_xml_pop_parent(out);
     }
 }
 
 static bool
 html_is_quiet(pcmk__output_t *out) {
     return false;
 }
 
 static void
 html_spacer(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
     pcmk__output_create_xml_node(out, "br", NULL);
 }
 
 static void
 html_progress(pcmk__output_t *out, bool end) {
     /* This function intentially left blank */
 }
 
 pcmk__output_t *
 pcmk__mk_html_output(char **argv) {
     pcmk__output_t *retval = calloc(1, sizeof(pcmk__output_t));
 
     if (retval == NULL) {
         return NULL;
     }
 
     retval->fmt_name = "html";
     retval->request = pcmk__quote_cmdline(argv);
 
     retval->init = html_init;
     retval->free_priv = html_free_priv;
     retval->finish = html_finish;
     retval->reset = html_reset;
 
     retval->register_message = pcmk__register_message;
     retval->message = pcmk__call_message;
 
     retval->subprocess_output = html_subprocess_output;
     retval->version = html_version;
     retval->info = html_info;
     retval->err = html_err;
     retval->output_xml = html_output_xml;
 
     retval->begin_list = html_begin_list;
     retval->list_item = html_list_item;
     retval->increment_list = html_increment_list;
     retval->end_list = html_end_list;
 
     retval->is_quiet = html_is_quiet;
     retval->spacer = html_spacer;
     retval->progress = html_progress;
     retval->prompt = pcmk__text_prompt;
 
     return retval;
 }
 
 xmlNodePtr
 pcmk__output_create_html_node(pcmk__output_t *out, const char *element_name, const char *id,
                               const char *class_name, const char *text) {
     htmlNodePtr node = NULL;
 
     CRM_ASSERT(out != NULL);
+    CRM_CHECK(pcmk__str_eq(out->fmt_name, "html", pcmk__str_none), return NULL);
 
     node = pcmk__output_create_xml_text_node(out, element_name, text);
 
     if (class_name != NULL) {
         crm_xml_add(node, "class", class_name);
     }
 
     if (id != NULL) {
         crm_xml_add(node, "id", id);
     }
 
     return node;
 }
 
 void
 pcmk__html_add_header(const char *name, ...) {
     htmlNodePtr header_node;
     va_list ap;
 
     va_start(ap, name);
 
     header_node = xmlNewNode(NULL, (pcmkXmlStr) name);
     while (1) {
         char *key = va_arg(ap, char *);
         char *value;
 
         if (key == NULL) {
             break;
         }
 
         value = va_arg(ap, char *);
         crm_xml_add(header_node, key, value);
     }
 
     extra_headers = g_slist_append(extra_headers, header_node);
 
     va_end(ap);
 }
diff --git a/lib/common/output_log.c b/lib/common/output_log.c
index 024523d28b..9126bd6ef9 100644
--- a/lib/common/output_log.c
+++ b/lib/common/output_log.c
@@ -1,320 +1,317 @@
 /*
  * Copyright 2019-2022 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 #include <crm/common/cmdline_internal.h>
 
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 
 GOptionEntry pcmk__log_output_entries[] = {
     { NULL }
 };
 
 typedef struct private_data_s {
     /* gathered in log_begin_list */
     GQueue/*<char*>*/ *prefixes;
     int log_level;
 } private_data_t;
 
 static void
 log_subprocess_output(pcmk__output_t *out, int exit_status,
                       const char *proc_stdout, const char *proc_stderr) {
     /* This function intentionally left blank */
 }
 
 static void
 log_free_priv(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     if (out == NULL || out->priv == NULL) {
         return;
     }
 
     priv = out->priv;
 
     g_queue_free(priv->prefixes);
     free(priv);
     out->priv = NULL;
 }
 
 static bool
 log_init(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL);
 
     /* If log_init was previously called on this output struct, just return. */
     if (out->priv != NULL) {
         return true;
     }
 
     out->priv = calloc(1, sizeof(private_data_t));
     if (out->priv == NULL) {
          return false;
     }
 
     priv = out->priv;
 
     priv->prefixes = g_queue_new();
     priv->log_level = LOG_INFO;
 
     return true;
 }
 
 static void
 log_finish(pcmk__output_t *out, crm_exit_t exit_status, bool print, void **copy_dest) {
     /* This function intentionally left blank */
 }
 
 static void
 log_reset(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
 
     out->dest = freopen(NULL, "w", out->dest);
     CRM_ASSERT(out->dest != NULL);
 
     log_free_priv(out);
     log_init(out);
 }
 
 static void
 log_version(pcmk__output_t *out, bool extended) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     if (extended) {
         do_crm_log(priv->log_level, "Pacemaker %s (Build: %s): %s",
                    PACEMAKER_VERSION, BUILD_VERSION, CRM_FEATURES);
     } else {
         do_crm_log(priv->log_level, "Pacemaker %s", PACEMAKER_VERSION);
         do_crm_log(priv->log_level, "Written by Andrew Beekhof and"
                                     "the Pacemaker project contributors");
     }
 }
 
 G_GNUC_PRINTF(2, 3)
 static void
 log_err(pcmk__output_t *out, const char *format, ...) {
     va_list ap;
     char* buffer = NULL;
     int len = 0;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     /* Informational output does not get indented, to separate it from other
      * potentially indented list output.
      */
     len = vasprintf(&buffer, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     crm_err("%s", buffer);
 
     free(buffer);
 }
 
 static void
 log_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
     xmlNodePtr node = NULL;
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     node = create_xml_node(NULL, name);
     xmlNodeSetContent(node, (pcmkXmlStr) buf);
     do_crm_log_xml(priv->log_level, name, node);
     free(node);
 }
 
 G_GNUC_PRINTF(4, 5)
 static void
 log_begin_list(pcmk__output_t *out, const char *singular_noun, const char *plural_noun,
                const char *format, ...) {
     int len = 0;
     va_list ap;
     char* buffer = NULL;
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     va_start(ap, format);
     len = vasprintf(&buffer, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     /* Don't skip empty prefixes,
      * otherwise there will be mismatch
      * in the log_end_list */
     if(strcmp(buffer, "") == 0) {
         /* nothing */
     }
 
     g_queue_push_tail(priv->prefixes, buffer);
 }
 
 G_GNUC_PRINTF(3, 4)
 static void
 log_list_item(pcmk__output_t *out, const char *name, const char *format, ...) {
     int len = 0;
     va_list ap;
     private_data_t *priv = NULL;
     char prefix[LINE_MAX] = { 0 };
     int offset = 0;
     char* buffer = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     for (GList* gIter = priv->prefixes->head; gIter; gIter = gIter->next) {
         if (strcmp(prefix, "") != 0) {
             offset += snprintf(prefix + offset, LINE_MAX - offset, ": %s", (char *)gIter->data);
         } else {
             offset = snprintf(prefix, LINE_MAX, "%s", (char *)gIter->data);
         }
     }
 
     va_start(ap, format);
     len = vasprintf(&buffer, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     if (strcmp(buffer, "") != 0) { /* We don't want empty messages */
         if ((name != NULL) && (strcmp(name, "") != 0)) {
             if (strcmp(prefix, "") != 0) {
                 do_crm_log(priv->log_level, "%s: %s: %s", prefix, name, buffer);
             } else {
                 do_crm_log(priv->log_level, "%s: %s", name, buffer);
             }
         } else {
             if (strcmp(prefix, "") != 0) {
                 do_crm_log(priv->log_level, "%s: %s", prefix, buffer);
             } else {
                 do_crm_log(priv->log_level, "%s", buffer);
             }
         }
     }
     free(buffer);
 }
 
 static void
 log_end_list(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     if (priv->prefixes == NULL) {
       return;
     }
     CRM_ASSERT(priv->prefixes->tail != NULL);
 
     free((char *)priv->prefixes->tail->data);
     g_queue_pop_tail(priv->prefixes);
 }
 
 G_GNUC_PRINTF(2, 3)
 static int
 log_info(pcmk__output_t *out, const char *format, ...) {
     private_data_t *priv = NULL;
     int len = 0;
     va_list ap;
     char* buffer = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     va_start(ap, format);
     len = vasprintf(&buffer, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     do_crm_log(priv->log_level, "%s", buffer);
 
     free(buffer);
     return pcmk_rc_ok;
 }
 
 static bool
 log_is_quiet(pcmk__output_t *out) {
     return false;
 }
 
 static void
 log_spacer(pcmk__output_t *out) {
     /* This function intentionally left blank */
 }
 
 static void
 log_progress(pcmk__output_t *out, bool end) {
     /* This function intentionally left blank */
 }
 
 static void
 log_prompt(const char *prompt, bool echo, char **dest) {
     /* This function intentionally left blank */
 }
 
 pcmk__output_t *
 pcmk__mk_log_output(char **argv) {
     pcmk__output_t *retval = calloc(1, sizeof(pcmk__output_t));
 
     if (retval == NULL) {
         return NULL;
     }
 
     retval->fmt_name = "log";
     retval->request = pcmk__quote_cmdline(argv);
 
     retval->init = log_init;
     retval->free_priv = log_free_priv;
     retval->finish = log_finish;
     retval->reset = log_reset;
 
     retval->register_message = pcmk__register_message;
     retval->message = pcmk__call_message;
 
     retval->subprocess_output = log_subprocess_output;
     retval->version = log_version;
     retval->info = log_info;
     retval->err = log_err;
     retval->output_xml = log_output_xml;
 
     retval->begin_list = log_begin_list;
     retval->list_item = log_list_item;
     retval->end_list = log_end_list;
 
     retval->is_quiet = log_is_quiet;
     retval->spacer = log_spacer;
     retval->progress = log_progress;
     retval->prompt = log_prompt;
 
     return retval;
 }
 
 void
 pcmk__output_set_log_level(pcmk__output_t *out, int log_level) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
-
-    if (!pcmk__str_eq(out->fmt_name, "log", pcmk__str_none)) {
-        return;
-    }
+    CRM_CHECK(pcmk__str_eq(out->fmt_name, "log", pcmk__str_none), return);
 
     priv = out->priv;
     priv->log_level = log_level;
 }
diff --git a/lib/common/output_text.c b/lib/common/output_text.c
index 0f982f9f7c..60477b0aa3 100644
--- a/lib/common/output_text.c
+++ b/lib/common/output_text.c
@@ -1,441 +1,438 @@
 /*
  * Copyright 2019-2022 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 #include <crm/common/cmdline_internal.h>
 
 #include <stdarg.h>
 #include <stdlib.h>
 #include <glib.h>
 #include <termios.h>
 
 static gboolean fancy = FALSE;
 
 GOptionEntry pcmk__text_output_entries[] = {
     { "text-fancy", 0, 0, G_OPTION_ARG_NONE, &fancy,
       "Use more highly formatted output (requires --output-as=text)",
       NULL },
 
     { NULL }
 };
 
 typedef struct text_list_data_s {
     unsigned int len;
     char *singular_noun;
     char *plural_noun;
 } text_list_data_t;
 
 typedef struct private_data_s {
     GQueue *parent_q;
 } private_data_t;
 
 static void
 text_free_priv(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     if (out == NULL || out->priv == NULL) {
         return;
     }
 
     priv = out->priv;
 
     g_queue_free(priv->parent_q);
     free(priv);
     out->priv = NULL;
 }
 
 static bool
 text_init(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL);
 
     /* If text_init was previously called on this output struct, just return. */
     if (out->priv != NULL) {
         return true;
     } else {
         out->priv = calloc(1, sizeof(private_data_t));
         if (out->priv == NULL) {
             return false;
         }
 
         priv = out->priv;
     }
 
     priv->parent_q = g_queue_new();
     return true;
 }
 
 static void
 text_finish(pcmk__output_t *out, crm_exit_t exit_status, bool print, void **copy_dest) {
     CRM_ASSERT(out != NULL && out->dest != NULL);
     fflush(out->dest);
 }
 
 static void
 text_reset(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
 
     if (out->dest != stdout) {
         out->dest = freopen(NULL, "w", out->dest);
     }
 
     CRM_ASSERT(out->dest != NULL);
 
     text_free_priv(out);
     text_init(out);
 }
 
 static void
 text_subprocess_output(pcmk__output_t *out, int exit_status,
                        const char *proc_stdout, const char *proc_stderr) {
     CRM_ASSERT(out != NULL);
 
     if (proc_stdout != NULL) {
         fprintf(out->dest, "%s\n", proc_stdout);
     }
 
     if (proc_stderr != NULL) {
         fprintf(out->dest, "%s\n", proc_stderr);
     }
 }
 
 static void
 text_version(pcmk__output_t *out, bool extended) {
     CRM_ASSERT(out != NULL && out->dest != NULL);
 
     if (extended) {
         fprintf(out->dest, "Pacemaker %s (Build: %s): %s\n", PACEMAKER_VERSION, BUILD_VERSION, CRM_FEATURES);
     } else {
         fprintf(out->dest, "Pacemaker %s\n", PACEMAKER_VERSION);
         fprintf(out->dest, "Written by Andrew Beekhof and "
                            "the Pacemaker project contributors\n");
     }
 }
 
 G_GNUC_PRINTF(2, 3)
 static void
 text_err(pcmk__output_t *out, const char *format, ...) {
     va_list ap;
     int len = 0;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
 
     /* Informational output does not get indented, to separate it from other
      * potentially indented list output.
      */
     len = vfprintf(stderr, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     /* Add a newline. */
     fprintf(stderr, "\n");
 }
 
 G_GNUC_PRINTF(2, 3)
 static int
 text_info(pcmk__output_t *out, const char *format, ...) {
     va_list ap;
     int len = 0;
 
     CRM_ASSERT(out != NULL);
 
     if (out->is_quiet(out)) {
         return pcmk_rc_no_output;
     }
 
     va_start(ap, format);
 
     /* Informational output does not get indented, to separate it from other
      * potentially indented list output.
      */
     len = vfprintf(out->dest, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     /* Add a newline. */
     fprintf(out->dest, "\n");
     return pcmk_rc_ok;
 }
 
 static void
 text_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
     CRM_ASSERT(out != NULL);
     pcmk__indented_printf(out, "%s", buf);
 }
 
 G_GNUC_PRINTF(4, 5)
 static void
 text_begin_list(pcmk__output_t *out, const char *singular_noun, const char *plural_noun,
                 const char *format, ...) {
     private_data_t *priv = NULL;
     text_list_data_t *new_list = NULL;
     va_list ap;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     va_start(ap, format);
 
     if (fancy && format) {
         pcmk__indented_vprintf(out, format, ap);
         fprintf(out->dest, ":\n");
     }
 
     va_end(ap);
 
     new_list = calloc(1, sizeof(text_list_data_t));
     new_list->len = 0;
     pcmk__str_update(&new_list->singular_noun, singular_noun);
     pcmk__str_update(&new_list->plural_noun, plural_noun);
 
     g_queue_push_tail(priv->parent_q, new_list);
 }
 
 G_GNUC_PRINTF(3, 4)
 static void
 text_list_item(pcmk__output_t *out, const char *id, const char *format, ...) {
     va_list ap;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
 
     if (fancy) {
         if (id != NULL) {
             /* Not really a good way to do this all in one call, so make it two.
              * The first handles the indentation and list styling.  The second
              * just prints right after that one.
              */
             pcmk__indented_printf(out, "%s: ", id);
             vfprintf(out->dest, format, ap);
         } else {
             pcmk__indented_vprintf(out, format, ap);
         }
     } else {
         pcmk__indented_vprintf(out, format, ap);
     }
 
     fputc('\n', out->dest);
     fflush(out->dest);
     va_end(ap);
 
     out->increment_list(out);
 }
 
 static void
 text_increment_list(pcmk__output_t *out) {
     private_data_t *priv = NULL;
     gpointer tail;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     tail = g_queue_peek_tail(priv->parent_q);
     CRM_ASSERT(tail != NULL);
     ((text_list_data_t *) tail)->len++;
 }
 
 static void
 text_end_list(pcmk__output_t *out) {
     private_data_t *priv = NULL;
     text_list_data_t *node = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     node = g_queue_pop_tail(priv->parent_q);
 
     if (node->singular_noun != NULL && node->plural_noun != NULL) {
         if (node->len == 1) {
             pcmk__indented_printf(out, "%d %s found\n", node->len, node->singular_noun);
         } else {
             pcmk__indented_printf(out, "%d %s found\n", node->len, node->plural_noun);
         }
     }
 
     free(node);
 }
 
 static bool
 text_is_quiet(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
     return out->quiet;
 }
 
 static void
 text_spacer(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
     fprintf(out->dest, "\n");
 }
 
 static void
 text_progress(pcmk__output_t *out, bool end) {
     CRM_ASSERT(out != NULL);
 
     if (out->dest == stdout) {
         fprintf(out->dest, ".");
 
         if (end) {
             fprintf(out->dest, "\n");
         }
     }
 }
 
 pcmk__output_t *
 pcmk__mk_text_output(char **argv) {
     pcmk__output_t *retval = calloc(1, sizeof(pcmk__output_t));
 
     if (retval == NULL) {
         return NULL;
     }
 
     retval->fmt_name = "text";
     retval->request = pcmk__quote_cmdline(argv);
 
     retval->init = text_init;
     retval->free_priv = text_free_priv;
     retval->finish = text_finish;
     retval->reset = text_reset;
 
     retval->register_message = pcmk__register_message;
     retval->message = pcmk__call_message;
 
     retval->subprocess_output = text_subprocess_output;
     retval->version = text_version;
     retval->info = text_info;
     retval->err = text_err;
     retval->output_xml = text_output_xml;
 
     retval->begin_list = text_begin_list;
     retval->list_item = text_list_item;
     retval->increment_list = text_increment_list;
     retval->end_list = text_end_list;
 
     retval->is_quiet = text_is_quiet;
     retval->spacer = text_spacer;
     retval->progress = text_progress;
     retval->prompt = pcmk__text_prompt;
 
     return retval;
 }
 
 G_GNUC_PRINTF(2, 0)
 void
 pcmk__formatted_vprintf(pcmk__output_t *out, const char *format, va_list args) {
     int len = 0;
 
     CRM_ASSERT(out != NULL);
     CRM_CHECK(pcmk__str_eq(out->fmt_name, "text", pcmk__str_none), return);
 
     len = vfprintf(out->dest, format, args);
     CRM_ASSERT(len >= 0);
 }
 
 G_GNUC_PRINTF(2, 3)
 void
 pcmk__formatted_printf(pcmk__output_t *out, const char *format, ...) {
     va_list ap;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     pcmk__formatted_vprintf(out, format, ap);
     va_end(ap);
 }
 
 G_GNUC_PRINTF(2, 0)
 void
 pcmk__indented_vprintf(pcmk__output_t *out, const char *format, va_list args) {
     CRM_ASSERT(out != NULL);
-
-    if (!pcmk__str_eq(out->fmt_name, "text", pcmk__str_none)) {
-        return;
-    }
+    CRM_CHECK(pcmk__str_eq(out->fmt_name, "text", pcmk__str_none), return);
 
     if (fancy) {
         int level = 0;
         private_data_t *priv = out->priv;
 
         CRM_ASSERT(priv != NULL);
 
         level = g_queue_get_length(priv->parent_q);
 
         for (int i = 0; i < level; i++) {
             fprintf(out->dest, "  ");
         }
 
         if (level > 0) {
             fprintf(out->dest, "* ");
         }
     }
 
     pcmk__formatted_vprintf(out, format, args);
 }
 
 G_GNUC_PRINTF(2, 3)
 void
 pcmk__indented_printf(pcmk__output_t *out, const char *format, ...) {
     va_list ap;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     pcmk__indented_vprintf(out, format, ap);
     va_end(ap);
 }
 
 void
 pcmk__text_prompt(const char *prompt, bool echo, char **dest)
 {
     int rc = 0;
     struct termios settings;
     tcflag_t orig_c_lflag = 0;
 
     CRM_ASSERT(prompt != NULL);
     CRM_ASSERT(dest != NULL);
 
     if (!echo) {
         rc = tcgetattr(0, &settings);
         if (rc == 0) {
             orig_c_lflag = settings.c_lflag;
             settings.c_lflag &= ~ECHO;
             rc = tcsetattr(0, TCSANOW, &settings);
         }
     }
 
     if (rc == 0) {
         fprintf(stderr, "%s: ", prompt);
 
         if (*dest != NULL) {
             free(*dest);
             *dest = NULL;
         }
 
 #if HAVE_SSCANF_M
         rc = scanf("%ms", dest);
 #else
         *dest = calloc(1, 1024);
         rc = scanf("%1023s", *dest);
 #endif
         fprintf(stderr, "\n");
     }
 
     if (rc < 1) {
         free(*dest);
         *dest = NULL;
     }
 
     if (orig_c_lflag != 0) {
         settings.c_lflag = orig_c_lflag;
         /* rc = */ tcsetattr(0, TCSANOW, &settings);
     }
 }
diff --git a/lib/common/output_xml.c b/lib/common/output_xml.c
index 0b3862d2a1..6f06522a39 100644
--- a/lib/common/output_xml.c
+++ b/lib/common/output_xml.c
@@ -1,543 +1,536 @@
 /*
  * Copyright 2019-2022 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU Lesser General Public License
  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <glib.h>
 
 #include <crm/common/cmdline_internal.h>
 #include <crm/common/xml.h>
 
 static gboolean legacy_xml = FALSE;
 static gboolean simple_list = FALSE;
 static gboolean substitute = FALSE;
 
 GOptionEntry pcmk__xml_output_entries[] = {
     { "xml-legacy", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE, &legacy_xml,
       NULL,
       NULL },
     { "xml-simple-list", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE, &simple_list,
       NULL,
       NULL },
     { "xml-substitute", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE, &substitute,
       NULL,
       NULL },
 
     { NULL }
 };
 
 typedef struct subst_s {
     const char *from;
     const char *to;
 } subst_t;
 
 static subst_t substitutions[] = {
     { "Active Resources",                               "resources" },
     { "Allocation Scores",                              "allocations" },
     { "Allocation Scores and Utilization Information",  "allocations_utilizations" },
     { "Cluster Summary",                                "summary" },
     { "Current cluster status",                         "cluster_status" },
     { "Executing Cluster Transition",                   "transition" },
     { "Failed Resource Actions",                        "failures" },
     { "Fencing History",                                "fence_history" },
     { "Full List of Resources",                         "resources" },
     { "Inactive Resources",                             "resources" },
     { "Migration Summary",                              "node_history" },
     { "Negative Location Constraints",                  "bans" },
     { "Node Attributes",                                "node_attributes" },
     { "Operations",                                     "node_history" },
     { "Resource Config",                                "resource_config" },
     { "Resource Operations",                            "operations" },
     { "Revised Cluster Status",                         "revised_cluster_status" },
     { "Transition Summary",                             "actions" },
     { "Utilization Information",                        "utilizations" },
 
     { NULL, NULL }
 };
 
 /* The first several elements of this struct must be the same as the first
  * several elements of private_data_s in lib/common/output_html.c.  That
  * struct gets passed to a bunch of the pcmk__output_xml_* functions which
  * assume an XML private_data_s.  Keeping them laid out the same means this
  * still works.
  */
 typedef struct private_data_s {
     /* Begin members that must match the HTML version */
     xmlNode *root;
     GQueue *parent_q;
     GSList *errors;
     /* End members that must match the HTML version */
     bool legacy_xml;
 } private_data_t;
 
 static void
 xml_free_priv(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     if (out == NULL || out->priv == NULL) {
         return;
     }
 
     priv = out->priv;
 
     free_xml(priv->root);
     g_queue_free(priv->parent_q);
     g_slist_free(priv->errors);
     free(priv);
     out->priv = NULL;
 }
 
 static bool
 xml_init(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL);
 
     /* If xml_init was previously called on this output struct, just return. */
     if (out->priv != NULL) {
         return true;
     } else {
         out->priv = calloc(1, sizeof(private_data_t));
         if (out->priv == NULL) {
             return false;
         }
 
         priv = out->priv;
     }
 
     if (legacy_xml) {
         priv->root = create_xml_node(NULL, "crm_mon");
         crm_xml_add(priv->root, "version", PACEMAKER_VERSION);
     } else {
         priv->root = create_xml_node(NULL, "pacemaker-result");
         crm_xml_add(priv->root, "api-version", PCMK__API_VERSION);
 
         if (out->request != NULL) {
             crm_xml_add(priv->root, "request", out->request);
         }
     }
 
     priv->parent_q = g_queue_new();
     priv->errors = NULL;
     g_queue_push_tail(priv->parent_q, priv->root);
 
     /* Copy this from the file-level variable.  This means that it is only settable
      * as a command line option, and that pcmk__output_new must be called after all
      * command line processing is completed.
      */
     priv->legacy_xml = legacy_xml;
 
     return true;
 }
 
 static void
 add_error_node(gpointer data, gpointer user_data) {
     char *str = (char *) data;
     xmlNodePtr node = (xmlNodePtr) user_data;
     pcmk_create_xml_text_node(node, "error", str);
 }
 
 static void
 xml_finish(pcmk__output_t *out, crm_exit_t exit_status, bool print, void **copy_dest) {
     private_data_t *priv = NULL;
     xmlNodePtr node;
 
     CRM_ASSERT(out != NULL);
     priv = out->priv;
 
     /* If root is NULL, xml_init failed and we are being called from pcmk__output_free
      * in the pcmk__output_new path.
      */
     if (priv == NULL || priv->root == NULL) {
         return;
     }
 
     if (legacy_xml) {
         GSList *node = priv->errors;
 
         if (exit_status != CRM_EX_OK) {
             fprintf(stderr, "%s\n", crm_exit_str(exit_status));
         }
 
         while (node != NULL) {
             fprintf(stderr, "%s\n", (char *) node->data);
             node = node->next;
         }
     } else {
         char *rc_as_str = pcmk__itoa(exit_status);
 
         node = create_xml_node(priv->root, "status");
         pcmk__xe_set_props(node, "code", rc_as_str,
                            "message", crm_exit_str(exit_status),
                            NULL);
 
         if (g_slist_length(priv->errors) > 0) {
             xmlNodePtr errors_node = create_xml_node(node, "errors");
             g_slist_foreach(priv->errors, add_error_node, (gpointer) errors_node);
         }
 
         free(rc_as_str);
     }
 
     if (print) {
         char *buf = dump_xml_formatted_with_text(priv->root);
         fprintf(out->dest, "%s", buf);
         fflush(out->dest);
         free(buf);
     }
 
     if (copy_dest != NULL) {
         *copy_dest = copy_xml(priv->root);
     }
 }
 
 static void
 xml_reset(pcmk__output_t *out) {
     CRM_ASSERT(out != NULL);
 
     out->dest = freopen(NULL, "w", out->dest);
     CRM_ASSERT(out->dest != NULL);
 
     xml_free_priv(out);
     xml_init(out);
 }
 
 static void
 xml_subprocess_output(pcmk__output_t *out, int exit_status,
                       const char *proc_stdout, const char *proc_stderr) {
     xmlNodePtr node, child_node;
     char *rc_as_str = NULL;
 
     CRM_ASSERT(out != NULL);
 
     rc_as_str = pcmk__itoa(exit_status);
 
     node = pcmk__output_xml_create_parent(out, "command",
                                           "code", rc_as_str,
                                           NULL);
 
     if (proc_stdout != NULL) {
         child_node = pcmk_create_xml_text_node(node, "output", proc_stdout);
         crm_xml_add(child_node, "source", "stdout");
     }
 
     if (proc_stderr != NULL) {
         child_node = pcmk_create_xml_text_node(node, "output", proc_stderr);
         crm_xml_add(child_node, "source", "stderr");
     }
 
     pcmk__output_xml_add_node(out, node);
     free(rc_as_str);
 }
 
 static void
 xml_version(pcmk__output_t *out, bool extended) {
     CRM_ASSERT(out != NULL);
 
     pcmk__output_create_xml_node(out, "version",
                                  "program", "Pacemaker",
                                  "version", PACEMAKER_VERSION,
                                  "author", "Andrew Beekhof and the "
                                            "Pacemaker project contributors",
                                  "build", BUILD_VERSION,
                                  "features", CRM_FEATURES,
                                  NULL);
 }
 
 G_GNUC_PRINTF(2, 3)
 static void
 xml_err(pcmk__output_t *out, const char *format, ...) {
     private_data_t *priv = NULL;
     int len = 0;
     char *buf = NULL;
     va_list ap;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     va_start(ap, format);
     len = vasprintf(&buf, format, ap);
     CRM_ASSERT(len > 0);
     va_end(ap);
 
     priv->errors = g_slist_append(priv->errors, buf);
 }
 
 G_GNUC_PRINTF(2, 3)
 static int
 xml_info(pcmk__output_t *out, const char *format, ...) {
     return pcmk_rc_no_output;
 }
 
 static void
 xml_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
     xmlNodePtr parent = NULL;
     xmlNodePtr cdata_node = NULL;
 
     CRM_ASSERT(out != NULL);
 
     parent = pcmk__output_create_xml_node(out, name, NULL);
     cdata_node = xmlNewCDataBlock(getDocPtr(parent), (pcmkXmlStr) buf, strlen(buf));
     xmlAddChild(parent, cdata_node);
 }
 
 G_GNUC_PRINTF(4, 5)
 static void
 xml_begin_list(pcmk__output_t *out, const char *singular_noun, const char *plural_noun,
                const char *format, ...) {
     va_list ap;
     char *name = NULL;
     char *buf = NULL;
     int len;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     len = vasprintf(&buf, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     if (substitute) {
         for (subst_t *s = substitutions; s->from != NULL; s++) {
             if (!strcmp(s->from, buf)) {
                 name = g_strdup(s->to);
                 break;
             }
         }
     }
 
     if (name == NULL) {
         name = g_ascii_strdown(buf, -1);
     }
 
     if (legacy_xml || simple_list) {
         pcmk__output_xml_create_parent(out, name, NULL);
     } else {
         pcmk__output_xml_create_parent(out, "list",
                                        "name", name,
                                        NULL);
     }
 
     g_free(name);
     free(buf);
 }
 
 G_GNUC_PRINTF(3, 4)
 static void
 xml_list_item(pcmk__output_t *out, const char *name, const char *format, ...) {
     xmlNodePtr item_node = NULL;
     va_list ap;
     char *buf = NULL;
     int len;
 
     CRM_ASSERT(out != NULL);
 
     va_start(ap, format);
     len = vasprintf(&buf, format, ap);
     CRM_ASSERT(len >= 0);
     va_end(ap);
 
     item_node = pcmk__output_create_xml_text_node(out, "item", buf);
 
     if (name != NULL) {
         crm_xml_add(item_node, "name", name);
     }
 
     free(buf);
 }
 
 static void
 xml_increment_list(pcmk__output_t *out) {
     /* This function intentially left blank */
 }
 
 static void
 xml_end_list(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     priv = out->priv;
 
     if (priv->legacy_xml || simple_list) {
         g_queue_pop_tail(priv->parent_q);
     } else {
         char *buf = NULL;
         xmlNodePtr node;
 
         node = g_queue_pop_tail(priv->parent_q);
         buf = crm_strdup_printf("%lu", xmlChildElementCount(node));
         crm_xml_add(node, "count", buf);
         free(buf);
     }
 }
 
 static bool
 xml_is_quiet(pcmk__output_t *out) {
     return false;
 }
 
 static void
 xml_spacer(pcmk__output_t *out) {
     /* This function intentionally left blank */
 }
 
 static void
 xml_progress(pcmk__output_t *out, bool end) {
     /* This function intentionally left blank */
 }
 
 pcmk__output_t *
 pcmk__mk_xml_output(char **argv) {
     pcmk__output_t *retval = calloc(1, sizeof(pcmk__output_t));
 
     if (retval == NULL) {
         return NULL;
     }
 
     retval->fmt_name = "xml";
     retval->request = pcmk__quote_cmdline(argv);
 
     retval->init = xml_init;
     retval->free_priv = xml_free_priv;
     retval->finish = xml_finish;
     retval->reset = xml_reset;
 
     retval->register_message = pcmk__register_message;
     retval->message = pcmk__call_message;
 
     retval->subprocess_output = xml_subprocess_output;
     retval->version = xml_version;
     retval->info = xml_info;
     retval->err = xml_err;
     retval->output_xml = xml_output_xml;
 
     retval->begin_list = xml_begin_list;
     retval->list_item = xml_list_item;
     retval->increment_list = xml_increment_list;
     retval->end_list = xml_end_list;
 
     retval->is_quiet = xml_is_quiet;
     retval->spacer = xml_spacer;
     retval->progress = xml_progress;
     retval->prompt = pcmk__text_prompt;
 
     return retval;
 }
 
 xmlNodePtr
 pcmk__output_xml_create_parent(pcmk__output_t *out, const char *name, ...) {
     va_list args;
     xmlNodePtr node = NULL;
 
     CRM_ASSERT(out != NULL);
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return NULL);
 
     node = pcmk__output_create_xml_node(out, name, NULL);
 
     va_start(args, name);
     pcmk__xe_set_propv(node, args);
     va_end(args);
 
     pcmk__output_xml_push_parent(out, node);
     return node;
 }
 
 void
 pcmk__output_xml_add_node(pcmk__output_t *out, xmlNodePtr node) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     CRM_ASSERT(node != NULL);
-
-    if (!pcmk__str_any_of(out->fmt_name, "xml", "html", NULL)) {
-        return;
-    }
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return);
 
     priv = out->priv;
 
     xmlAddChild(g_queue_peek_tail(priv->parent_q), node);
 }
 
 xmlNodePtr
 pcmk__output_create_xml_node(pcmk__output_t *out, const char *name, ...) {
     xmlNodePtr node = NULL;
     private_data_t *priv = NULL;
     va_list args;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
-    CRM_ASSERT(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL));
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return NULL);
 
     priv = out->priv;
 
     node = create_xml_node(g_queue_peek_tail(priv->parent_q), name);
     va_start(args, name);
     pcmk__xe_set_propv(node, args);
     va_end(args);
 
     return node;
 }
 
 xmlNodePtr
 pcmk__output_create_xml_text_node(pcmk__output_t *out, const char *name, const char *content) {
     xmlNodePtr node = NULL;
 
     CRM_ASSERT(out != NULL);
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return NULL);
 
     node = pcmk__output_create_xml_node(out, name, NULL);
     xmlNodeSetContent(node, (pcmkXmlStr) content);
     return node;
 }
 
 void
 pcmk__output_xml_push_parent(pcmk__output_t *out, xmlNodePtr parent) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
     CRM_ASSERT(parent != NULL);
-
-    if (!pcmk__str_any_of(out->fmt_name, "xml", "html", NULL)) {
-        return;
-    }
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return);
 
     priv = out->priv;
 
     g_queue_push_tail(priv->parent_q, parent);
 }
 
 void
 pcmk__output_xml_pop_parent(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
-
-    if (!pcmk__str_any_of(out->fmt_name, "xml", "html", NULL)) {
-        return;
-    }
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return);
 
     priv = out->priv;
 
     CRM_ASSERT(g_queue_get_length(priv->parent_q) > 0);
     g_queue_pop_tail(priv->parent_q);
 }
 
 xmlNodePtr
 pcmk__output_xml_peek_parent(pcmk__output_t *out) {
     private_data_t *priv = NULL;
 
     CRM_ASSERT(out != NULL && out->priv != NULL);
-    CRM_ASSERT(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL));
+    CRM_CHECK(pcmk__str_any_of(out->fmt_name, "xml", "html", NULL), return NULL);
 
     priv = out->priv;
 
     /* If queue is empty NULL will be returned */
     return g_queue_peek_tail(priv->parent_q);
 }