root/lib/common/xml_attr.c

/* */

DEFINITIONS

1. pcmk__mark_xml_attr_dirty
2. pcmk__marked_as_deleted
3. pcmk__dump_xml_attr

   1 /*
   2  * Copyright 2004-2024 the Pacemaker project contributors
   3  *
   4  * The version control history for this file may have further details.
   5  *
   6  * This source code is licensed under the GNU Lesser General Public License
   7  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
   8  */
   9 
  10 #include <crm_internal.h>
  11 
  12 #include <stdio.h>
  13 #include <sys/types.h>
  14 #include <unistd.h>
  15 #include <time.h>
  16 #include <string.h>
  17 #include <stdlib.h>
  18 #include <stdarg.h>
  19 #include <bzlib.h>
  20 
  21 #include <libxml/parser.h>
  22 #include <libxml/tree.h>
  23 #include <libxml/xmlIO.h>  /* xmlAllocOutputBuffer */
  24 
  25 #include <crm/crm.h>
  26 #include <crm/common/xml.h>
  27 #include <crm/common/xml_internal.h>  // PCMK__XML_LOG_BASE, etc.
  28 #include "crmcommon_private.h"
  29 
  30 void
  31 pcmk__mark_xml_attr_dirty(xmlAttr *a) 
     /*  */
  32 {
  33     xmlNode *parent = a->parent;
  34     xml_node_private_t *nodepriv = a->_private;
  35 
  36     pcmk__set_xml_flags(nodepriv, pcmk__xf_dirty|pcmk__xf_modified);
  37     pcmk__clear_xml_flags(nodepriv, pcmk__xf_deleted);
  38     pcmk__mark_xml_node_dirty(parent);
  39 }
  40 
  41 // This also clears attribute's flags if not marked as deleted
  42 bool
  43 pcmk__marked_as_deleted(xmlAttrPtr a, void *user_data)
     /*  */
  44 {
  45     xml_node_private_t *nodepriv = a->_private;
  46 
  47     if (pcmk_is_set(nodepriv->flags, pcmk__xf_deleted)) {
  48         return true;
  49     }
  50     nodepriv->flags = pcmk__xf_none;
  51     return false;
  52 }
  53 
  54 /*!
  55  * \internal
  56  * \brief Append an XML attribute to a buffer
  57  *
  58  * \param[in]     attr     Attribute to append
  59  * \param[in,out] buffer   Where to append the content (must not be \p NULL)
  60  */
  61 void
  62 pcmk__dump_xml_attr(const xmlAttr *attr, GString *buffer)
     /*  */
  63 {
  64     const char *name = NULL;
  65     const char *value = NULL;
  66     gchar *value_esc = NULL;
  67     xml_node_private_t *nodepriv = NULL;
  68 
  69     if (attr == NULL || attr->children == NULL) {
  70         return;
  71     }
  72 
  73     nodepriv = attr->_private;
  74     if (nodepriv && pcmk_is_set(nodepriv->flags, pcmk__xf_deleted)) {
  75         return;
  76     }
  77 
  78     name = (const char *) attr->name;
  79     value = (const char *) attr->children->content;
  80     if (value == NULL) {
  81         /* Don't print anything for unset attribute. Any null-indicator value,
  82          * including the empty string, could also be a real value that needs to
  83          * be treated differently from "unset".
  84          */
  85         return;
  86     }
  87 
  88     if (pcmk__xml_needs_escape(value, pcmk__xml_escape_attr)) {
  89         value_esc = pcmk__xml_escape(value, pcmk__xml_escape_attr);
  90         value = value_esc;
  91     }
  92 
  93     pcmk__g_strcat(buffer, " ", name, "=\"", value, "\"", NULL);
  94     g_free(value_esc);
  95 }

/* */