+ return (colon == NULL) ? -1 : colon - tagstr;
+}
+
+static int displaytext_str2tag(const char *tagstr, unsigned int *tag_len)
+{
+ int len;
+
+ *tag_len = 0;
+ len = displaytext_get_tag_len(tagstr);
+
+ if (len == -1)
+ return V_ASN1_VISIBLESTRING;
+ *tag_len = len;
+ if (len == sizeof("UTF8") - 1 && strncmp(tagstr, "UTF8", len) == 0)
+ return V_ASN1_UTF8STRING;
+ if (len == sizeof("UTF8String") - 1 && strncmp(tagstr, "UTF8String", len) == 0)
+ return V_ASN1_UTF8STRING;
+ if (len == sizeof("BMP") - 1 && strncmp(tagstr, "BMP", len) == 0)
+ return V_ASN1_BMPSTRING;
+ if (len == sizeof("BMPSTRING") - 1 && strncmp(tagstr, "BMPSTRING", len) == 0)
+ return V_ASN1_BMPSTRING;
+ if (len == sizeof("VISIBLE") - 1 && strncmp(tagstr, "VISIBLE", len) == 0)
+ return V_ASN1_VISIBLESTRING;
+ if (len == sizeof("VISIBLESTRING") - 1 && strncmp(tagstr, "VISIBLESTRING", len) == 0)
+ return V_ASN1_VISIBLESTRING;
+ *tag_len = 0;
+ return V_ASN1_VISIBLESTRING;