static void
output (char **roots)
{
xmlOutputBufferPtr ob = xmlOutputBufferCreateFd (1, NULL);
if (ob == NULL) {
fprintf (stderr,
_("%s: xmlOutputBufferCreateFd: failed to open stdout\n"),
guestfs_int_program_name);
exit (EXIT_FAILURE);
}
/* 'ob' is freed when 'xo' is freed.. */
CLEANUP_XMLFREETEXTWRITER xmlTextWriterPtr xo = xmlNewTextWriter (ob);
if (xo == NULL) {
fprintf (stderr,
_("%s: xmlNewTextWriter: failed to create libxml2 writer\n"),
guestfs_int_program_name);
exit (EXIT_FAILURE);
}
/* Pretty-print the output. */
XMLERROR (-1, xmlTextWriterSetIndent (xo, 1));
XMLERROR (-1, xmlTextWriterSetIndentString (xo, BAD_CAST " "));
XMLERROR (-1, xmlTextWriterStartDocument (xo, NULL, NULL, NULL));
output_roots (xo, roots);
XMLERROR (-1, xmlTextWriterEndDocument (xo));
}
/**
* Write the xml document out to a file descriptor.
* @param xml The xml document
* @param fd The xml output descriptor
* @return @c TRUE if successful, @c FALSE if an error occurs.
* @ingroup EXML_Write_Group
*/
int exml_fd_write(EXML *xml, int fd)
{
xmlTextWriterPtr writer;
xmlOutputBufferPtr out;
out = xmlOutputBufferCreateFd(fd, NULL);
if (out == NULL) {
xmlGenericError(xmlGenericErrorContext,
"xmlNewTextWriterFd : out of memory!\n");
return FALSE;
}
CHECK_PARAM_POINTER_RETURN("xml", xml, FALSE);
writer = xmlNewTextWriter( out );
return _exml_write(xml, writer);
}
static void
output (char **roots)
{
xmlOutputBufferPtr ob = xmlOutputBufferCreateFd (1, NULL);
if (ob == NULL)
error (EXIT_FAILURE, 0,
_("xmlOutputBufferCreateFd: failed to open stdout"));
/* 'ob' is freed when 'xo' is freed.. */
CLEANUP_XMLFREETEXTWRITER xmlTextWriterPtr xo = xmlNewTextWriter (ob);
if (xo == NULL)
error (EXIT_FAILURE, 0,
_("xmlNewTextWriter: failed to create libxml2 writer"));
/* Pretty-print the output. */
XMLERROR (-1, xmlTextWriterSetIndent (xo, 1));
XMLERROR (-1, xmlTextWriterSetIndentString (xo, BAD_CAST " "));
XMLERROR (-1, xmlTextWriterStartDocument (xo, NULL, NULL, NULL));
output_roots (xo, roots);
XMLERROR (-1, xmlTextWriterEndDocument (xo));
}
int oscap_xml_save_filename(const char *filename, xmlDocPtr doc)
{
xmlOutputBufferPtr buff;
int xmlCode;
if (strcmp(filename, "-") == 0) {
xmlCode = xmlSaveFormatFileEnc(filename, doc, "UTF-8", 1);
}
else {
int fd = open(filename, O_CREAT|O_TRUNC|O_WRONLY,
S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
if (fd < 0) {
oscap_seterr(OSCAP_EFAMILY_GLIBC, "%s '%s'", strerror(errno), filename);
xmlFreeDoc(doc);
return -1;
}
buff = xmlOutputBufferCreateFd(fd, NULL);
if (buff == NULL) {
close(fd);
oscap_setxmlerr(xmlGetLastError());
oscap_dlprintf(DBG_W, "xmlOutputBufferCreateFile() failed.\n");
xmlFreeDoc(doc);
return -1;
}
xmlCode = xmlSaveFormatFileTo(buff, doc, "UTF-8", 1);
close(fd);
}
if (xmlCode <= 0) {
oscap_setxmlerr(xmlGetLastError());
oscap_dlprintf(DBG_W, "No bytes exported: xmlCode: %d.\n", xmlCode);
}
return (xmlCode >= 1) ? 1 : -1;
}
int
main(int argc, char **argv) {
int ch;
char *encoding = "utf8";
char *filename;
int quiet = 0;
int exitcode = EXIT_OK;
xmlDocPtr doc = NULL;
xmlDtdPtr dtd = NULL;
xmlCharEncoding enc;
xmlCharEncodingHandlerPtr enchandler;
xmlOutputBufferPtr out;
/* LibXML version checking */
LIBXML_TEST_VERSION;
/* Who am I? */
if ((progname = rindex(argv[0], '/')))
progname++;
else
progname = argv[0];
/* Parsing CLI */
while ((ch = getopt(argc, argv, "hqe:")) != -1)
switch (ch) {
case 'q': quiet = 1; break;
case 'e': encoding = optarg; break;
case 'h': /* FALL THROUGH */
case '?': usage(EXIT_OK); break;
default: usage(EXIT_USAGE); break;
}
argc -= optind;
argv += optind;
switch (argc) {
case 1: filename = argv[0]; break;
case 0: filename = "-"; break;
default: usage(EXIT_USAGE);
}
/* Get user encoding */
if ((enc = xmlParseCharEncoding(encoding)) == XML_CHAR_ENCODING_ERROR) {
fprintf(stderr, "Unknown encoding: %s\n", encoding);
usage(EXIT_USAGE);
}
enchandler = xmlGetCharEncodingHandler(enc);
/* Shut up */
xmlSetGenericErrorFunc(NULL, &noerror_handler);
xmlGetWarningsDefaultValue = 0;
xmlPedanticParserDefault(0);
/* File exists? (race condition below) */
if (strcmp(filename, "-") && (open(filename, O_RDONLY) < 0)) {
if (!quiet)
fprintf(stderr, "ERROR: unable to open %s\n", filename);
exitcode = EXIT_NOFILE;
goto exit;
}
/* Parse document */
if ((doc = xmlParseFile(filename)) == NULL) {
if (!quiet)
fprintf(stderr, "ERROR: badly formed document\n");
exitcode = EXIT_BADXML;
goto exit;
}
/* Extract DTD (if any) */
dtd = xmlGetIntSubset(doc);
/* Create output buffer */
if ((out = xmlOutputBufferCreateFd(1, enchandler)) == NULL) {
if (!quiet)
fprintf(stderr, "ERROR: unable to open output channel\n");
exitcode = EXIT_INTERNAL;
goto exit;
}
/* Dump information */
if (doc->version) {
xmlOutputBufferWriteString(out, "Version : ");
xmlOutputBufferWriteString(out, doc->version);
xmlOutputBufferWriteString(out, "\n");
}
if (doc->encoding) {
xmlOutputBufferWriteString(out, "Encoding : ");
xmlOutputBufferWriteString(out, doc->encoding);
xmlOutputBufferWriteString(out, "\n");
}
if (dtd && dtd->name) {
xmlOutputBufferWriteString(out, "Name : ");
xmlOutputBufferWriteString(out, dtd->name);
xmlOutputBufferWriteString(out, "\n");
}
if (dtd && dtd->ExternalID) {
xmlOutputBufferWriteString(out, "Identifier: ");
xmlOutputBufferWriteString(out, dtd->ExternalID);
xmlOutputBufferWriteString(out, "\n");
}
if (dtd && dtd->SystemID) {
xmlOutputBufferWriteString(out, "URI : ");
xmlOutputBufferWriteString(out, dtd->SystemID);
xmlOutputBufferWriteString(out, "\n");
xmlOutputBufferFlush(out);
}
/* Free resources */
if (doc)
xmlFreeDoc(doc);
xmlCleanupParser();
/* OK */
exit:
exit(exitcode);
}
