diff options
Diffstat (limited to 'src/Common/Xml.c')
| -rw-r--r-- | src/Common/Xml.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/Common/Xml.c b/src/Common/Xml.c new file mode 100644 index 00000000..32b7e9d7 --- /dev/null +++ b/src/Common/Xml.c @@ -0,0 +1,231 @@ +/*
+ Copyright (c) 2005-2010 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include <windows.h>
+#include <stdio.h>
+#include "Xml.h"
+
+
+static BOOL BeginsWith (char *string, char *subString)
+{
+ while (*string++ == *subString++)
+ {
+ if (*subString == 0) return TRUE;
+ if (*string == 0) return FALSE;
+ }
+
+ return FALSE;
+}
+
+
+char *XmlNextNode (char *xmlNode)
+{
+ char *t = xmlNode + 1;
+ while ((t = strchr (t, '<')) != NULL)
+ {
+ if (t[1] != '/')
+ return t;
+
+ t++;
+ }
+
+ return NULL;
+}
+
+
+char *XmlFindElement (char *xmlNode, char *nodeName)
+{
+ char *t = xmlNode;
+ size_t nameLen = strlen (nodeName);
+
+ do
+ {
+ if (BeginsWith (t + 1, nodeName)
+ && (t[nameLen + 1] == '>'
+ || t[nameLen + 1] == ' ')) return t;
+
+ } while (t = XmlNextNode (t));
+
+ return NULL;
+}
+
+
+char *XmlFindElementByAttributeValue (char *xml, char *nodeName, char *attrName, char *attrValue)
+{
+ char attr[2048];
+
+ while (xml = XmlFindElement (xml, nodeName))
+ {
+ XmlGetAttributeText (xml, attrName, attr, sizeof (attr));
+ if (strcmp (attr, attrValue) == 0)
+ return xml;
+
+ xml++;
+ }
+
+ return NULL;
+}
+
+
+char *XmlGetAttributeText (char *xmlNode, char *xmlAttrName, char *xmlAttrValue, int xmlAttrValueSize)
+{
+ char *t = xmlNode;
+ char *e = xmlNode;
+ int l = 0;
+
+ xmlAttrValue[0] = 0;
+ if (t[0] != '<') return NULL;
+
+ e = strchr (e, '>');
+ if (e == NULL) return NULL;
+
+ while ((t = strstr (t, xmlAttrName)) && t < e)
+ {
+ char *o = t + strlen (xmlAttrName);
+ if (t[-1] == ' '
+ &&
+ (BeginsWith (o, "=\"")
+ || BeginsWith (o, "= \"")
+ || BeginsWith (o, " =\"")
+ || BeginsWith (o, " = \""))
+ )
+ break;
+
+ t++;
+ }
+
+ if (t == NULL || t > e) return NULL;
+
+ t = strchr (t, '"') + 1;
+ e = strchr (t, '"');
+ l = (int)(e - t);
+ if (e == NULL || l > xmlAttrValueSize) return NULL;
+
+ memcpy (xmlAttrValue, t, l);
+ xmlAttrValue[l] = 0;
+
+ return xmlAttrValue;
+}
+
+
+char *XmlGetNodeText (char *xmlNode, char *xmlText, int xmlTextSize)
+{
+ char *t = xmlNode;
+ char *e = xmlNode + 1;
+ int l = 0, i = 0, j = 0;
+
+ xmlText[0] = 0;
+
+ if (t[0] != '<')
+ return NULL;
+
+ t = strchr (t, '>') + 1;
+ if (t == (char *)1) return NULL;
+
+ e = strchr (e, '<');
+ if (e == NULL) return NULL;
+
+ l = (int)(e - t);
+ if (e == NULL || l > xmlTextSize) return NULL;
+
+ while (i < l)
+ {
+ if (BeginsWith (&t[i], "<"))
+ {
+ xmlText[j++] = '<';
+ i += 4;
+ continue;
+ }
+ if (BeginsWith (&t[i], ">"))
+ {
+ xmlText[j++] = '>';
+ i += 4;
+ continue;
+ }
+ if (BeginsWith (&t[i], "&"))
+ {
+ xmlText[j++] = '&';
+ i += 5;
+ continue;
+ }
+ xmlText[j++] = t[i++];
+ }
+ xmlText[j] = 0;
+
+ return t;
+}
+
+
+char *XmlQuoteText (const char *textSrc, char *textDst, int textDstMaxSize)
+{
+ char *textDstLast = textDst + textDstMaxSize - 1;
+
+ if (textDstMaxSize == 0)
+ return NULL;
+
+ while (*textSrc != 0 && textDst <= textDstLast)
+ {
+ char c = *textSrc++;
+ switch (c)
+ {
+ case '&':
+ if (textDst + 6 > textDstLast)
+ return NULL;
+ strcpy (textDst, "&");
+ textDst += 5;
+ continue;
+
+ case '>':
+ if (textDst + 5 > textDstLast)
+ return NULL;
+ strcpy (textDst, ">");
+ textDst += 4;
+ continue;
+
+ case '<':
+ if (textDst + 5 > textDstLast)
+ return NULL;
+ strcpy (textDst, "<");
+ textDst += 4;
+ continue;
+
+ default:
+ *textDst++ = c;
+ }
+ }
+
+ if (textDst > textDstLast)
+ return NULL;
+
+ *textDst = 0;
+ return textDst;
+}
+
+
+int XmlWriteHeader (FILE *file)
+{
+ return fputs ("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<TrueCrypt>", file);
+}
+
+
+int XmlWriteHeaderW (FILE *file)
+{
+ return fputws (L"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<TrueCrypt>", file);
+}
+
+
+int XmlWriteFooter (FILE *file)
+{
+ return fputs ("\n</TrueCrypt>", file);
+}
+
+
+int XmlWriteFooterW (FILE *file)
+{
+ return fputws (L"\n</TrueCrypt>", file);
+}
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