Function xmlOutputDefaultOpen

ThirdParty/libxml2/vtklibxml2/xmlIO.c:1286–1331

* xmlOutputDefaultOpen: * @buf: input buffer to be filled * @filename: filename or URI * @compression: compression level or 0 * @is_file_uri: whether filename is a file URI * * Returns an xmlParserErrors code. */

 * Returns an xmlParserErrors code.
 */
static int
xmlOutputDefaultOpen(xmlOutputBufferPtr buf, const char *filename,
                     int compression) {
    int fd;

    (void) compression;

    if (!strcmp(filename, "-")) {
        fd = dup(STDOUT_FILENO);

        if (fd < 0)
            return(xmlIOErr(0, "dup()"));
    } else {
        int ret;

        ret = xmlFdOpen(filename, /* write */ 1, &fd);
        if (ret != XML_ERR_OK)
            return(ret);
    }

#ifdef LIBXML_ZLIB_ENABLED
    if ((compression > 0) && (compression <= 9)) {
        gzFile gzStream;
        char mode[15];

        snprintf(mode, sizeof(mode), "wb%d", compression);
        gzStream = gzdopen(fd, mode);

        if (gzStream == NULL) {
            close(fd);
            return(xmlIOErr(XML_IO_UNKNOWN, "gzdopen()"));
        }

        buf->context = gzStream;
        buf->writecallback = xmlGzfileWrite;
        buf->closecallback = xmlGzfileClose;

        return(XML_ERR_OK);
    }
#endif /* LIBXML_ZLIB_ENABLED */

    buf->context = (void *) (ptrdiff_t) fd;
    buf->writecallback = xmlFdWrite;
    buf->closecallback = xmlFdClose;
    return(XML_ERR_OK);
}
#endif

/**