static int do_esc_char(unsigned long c, unsigned char flags, char *do_quotes,
char_io *io_ch, void *arg)
{
unsigned char chflgs, chtmp;
char tmphex[HEX_SIZE(long) + 3];
if (c > 0xffffffffL)
return -1;
if (c > 0xffff) {
BIO_snprintf(tmphex, sizeof tmphex, "\\W%08lX", c);
if (!io_ch(arg, tmphex, 10))
return -1;
return 10;
}
if (c > 0xff) {
BIO_snprintf(tmphex, sizeof tmphex, "\\U%04lX", c);
if (!io_ch(arg, tmphex, 6))
return -1;
return 6;
}
chtmp = (unsigned char)c;
if (chtmp > 0x7f)
chflgs = flags & ASN1_STRFLGS_ESC_MSB;
else
chflgs = char_type[chtmp] & flags;
if (chflgs & CHARTYPE_BS_ESC) {
/* If we don't escape with quotes, signal we need quotes */
if (chflgs & ASN1_STRFLGS_ESC_QUOTE) {
if (do_quotes)
*do_quotes = 1;
if (!io_ch(arg, &chtmp, 1))
return -1;
return 1;
}
if (!io_ch(arg, "\\", 1))
return -1;
if (!io_ch(arg, &chtmp, 1))
return -1;
return 2;
}
if (chflgs & (ASN1_STRFLGS_ESC_CTRL | ASN1_STRFLGS_ESC_MSB)) {
BIO_snprintf(tmphex, 11, "\\%02X", chtmp);
if (!io_ch(arg, tmphex, 3))
return -1;
return 3;
}
/*
* If we get this far and do any escaping at all must escape the escape
* character itself: backslash.
*/
if (chtmp == '\\' && flags & ESC_FLAGS) {
if (!io_ch(arg, "\\\\", 2))
return -1;
return 2;
}
if (!io_ch(arg, &chtmp, 1))
return -1;
return 1;
}
static int do_dump(unsigned long lflags, char_io *io_ch, void *arg,
ASN1_STRING *str)
{
/*
* Placing the ASN1_STRING in a temp ASN1_TYPE allows the DER encoding to
* readily obtained
*/
ASN1_TYPE t;
unsigned char *der_buf, *p;
int outlen, der_len;
if (!io_ch(arg, "#", 1))
return -1;
/* If we don't dump DER encoding just dump content octets */
if (!(lflags & ASN1_STRFLGS_DUMP_DER)) {
outlen = do_hex_dump(io_ch, arg, str->data, str->length);
if (outlen < 0)
return -1;
return outlen + 1;
}
t.type = str->type;
t.value.ptr = (char *)str;
der_len = i2d_ASN1_TYPE(&t, NULL);
der_buf = OPENSSL_malloc(der_len);
if (!der_buf)
return -1;
p = der_buf;
i2d_ASN1_TYPE(&t, &p);
outlen = do_hex_dump(io_ch, arg, der_buf, der_len);
OPENSSL_free(der_buf);
if (outlen < 0)
return -1;
return outlen + 1;
}
static int do_indent(char_io *io_ch, void *arg, int indent)
{
int i;
for(i = 0; i < indent; i++)
if(!io_ch(arg, " ", 1)) return 0;
return 1;
}
static int do_hex_dump(char_io *io_ch, void *arg, unsigned char *buf, int buflen)
{
static const char hexdig[] = "0123456789ABCDEF";
unsigned char *p, *q;
char hextmp[2];
if(arg) {
p = buf;
q = buf + buflen;
while(p != q) {
hextmp[0] = hexdig[*p >> 4];
hextmp[1] = hexdig[*p & 0xf];
if(!io_ch(arg, hextmp, 2)) return -1;
p++;
}
}
return buflen << 1;
}
static int do_name_ex(char_io *io_ch, void *arg, X509_NAME *n,
int indent, unsigned long flags)
{
int i, prev = -1, orflags, cnt;
int fn_opt, fn_nid;
ASN1_OBJECT *fn;
ASN1_STRING *val;
X509_NAME_ENTRY *ent;
char objtmp[80];
const char *objbuf;
int outlen, len;
char *sep_dn, *sep_mv, *sep_eq;
int sep_dn_len, sep_mv_len, sep_eq_len;
if (indent < 0)
indent = 0;
outlen = indent;
if (!do_indent(io_ch, arg, indent))
return -1;
switch (flags & XN_FLAG_SEP_MASK) {
case XN_FLAG_SEP_MULTILINE:
sep_dn = "\n";
sep_dn_len = 1;
sep_mv = " + ";
sep_mv_len = 3;
break;
case XN_FLAG_SEP_COMMA_PLUS:
sep_dn = ",";
sep_dn_len = 1;
sep_mv = "+";
sep_mv_len = 1;
indent = 0;
break;
case XN_FLAG_SEP_CPLUS_SPC:
sep_dn = ", ";
sep_dn_len = 2;
sep_mv = " + ";
sep_mv_len = 3;
indent = 0;
break;
case XN_FLAG_SEP_SPLUS_SPC:
sep_dn = "; ";
sep_dn_len = 2;
sep_mv = " + ";
sep_mv_len = 3;
indent = 0;
break;
default:
return -1;
}
if (flags & XN_FLAG_SPC_EQ) {
sep_eq = " = ";
sep_eq_len = 3;
} else {
sep_eq = "=";
sep_eq_len = 1;
}
fn_opt = flags & XN_FLAG_FN_MASK;
cnt = X509_NAME_entry_count(n);
for (i = 0; i < cnt; i++) {
if (flags & XN_FLAG_DN_REV)
ent = X509_NAME_get_entry(n, cnt - i - 1);
else
ent = X509_NAME_get_entry(n, i);
if (prev != -1) {
if (prev == ent->set) {
if (!io_ch(arg, sep_mv, sep_mv_len))
return -1;
outlen += sep_mv_len;
} else {
if (!io_ch(arg, sep_dn, sep_dn_len))
return -1;
outlen += sep_dn_len;
if (!do_indent(io_ch, arg, indent))
return -1;
outlen += indent;
}
}
prev = ent->set;
fn = X509_NAME_ENTRY_get_object(ent);
val = X509_NAME_ENTRY_get_data(ent);
fn_nid = OBJ_obj2nid(fn);
if (fn_opt != XN_FLAG_FN_NONE) {
int objlen, fld_len;
if ((fn_opt == XN_FLAG_FN_OID) || (fn_nid == NID_undef)) {
OBJ_obj2txt(objtmp, sizeof objtmp, fn, 1);
fld_len = 0; /* XXX: what should this be? */
objbuf = objtmp;
} else {
if (fn_opt == XN_FLAG_FN_SN) {
fld_len = FN_WIDTH_SN;
objbuf = OBJ_nid2sn(fn_nid);
} else if (fn_opt == XN_FLAG_FN_LN) {
fld_len = FN_WIDTH_LN;
objbuf = OBJ_nid2ln(fn_nid);
} else {
fld_len = 0; /* XXX: what should this be? */
objbuf = "";
}
}
objlen = strlen(objbuf);
if (!io_ch(arg, objbuf, objlen))
return -1;
if ((objlen < fld_len) && (flags & XN_FLAG_FN_ALIGN)) {
if (!do_indent(io_ch, arg, fld_len - objlen))
return -1;
outlen += fld_len - objlen;
}
if (!io_ch(arg, sep_eq, sep_eq_len))
return -1;
outlen += objlen + sep_eq_len;
}
/*
* If the field name is unknown then fix up the DER dump flag. We
* might want to limit this further so it will DER dump on anything
* other than a few 'standard' fields.
*/
if ((fn_nid == NID_undef) && (flags & XN_FLAG_DUMP_UNKNOWN_FIELDS))
orflags = ASN1_STRFLGS_DUMP_ALL;
else
orflags = 0;
len = do_print_ex(io_ch, arg, flags | orflags, val);
if (len < 0)
return -1;
outlen += len;
}
return outlen;
}
static int do_print_ex(char_io *io_ch, void *arg, unsigned long lflags,
ASN1_STRING *str)
{
int outlen, len;
int type;
char quotes;
unsigned char flags;
quotes = 0;
/* Keep a copy of escape flags */
flags = (unsigned char)(lflags & ESC_FLAGS);
type = str->type;
outlen = 0;
if (lflags & ASN1_STRFLGS_SHOW_TYPE) {
const char *tagname;
tagname = ASN1_tag2str(type);
outlen += strlen(tagname);
if (!io_ch(arg, tagname, outlen) || !io_ch(arg, ":", 1))
return -1;
outlen++;
}
/* Decide what to do with type, either dump content or display it */
/* Dump everything */
if (lflags & ASN1_STRFLGS_DUMP_ALL)
type = -1;
/* Ignore the string type */
else if (lflags & ASN1_STRFLGS_IGNORE_TYPE)
type = 1;
else {
/* Else determine width based on type */
if ((type > 0) && (type < 31))
type = tag2nbyte[type];
else
type = -1;
if ((type == -1) && !(lflags & ASN1_STRFLGS_DUMP_UNKNOWN))
type = 1;
}
if (type == -1) {
len = do_dump(lflags, io_ch, arg, str);
if (len < 0)
return -1;
outlen += len;
return outlen;
}
if (lflags & ASN1_STRFLGS_UTF8_CONVERT) {
/*
* Note: if string is UTF8 and we want to convert to UTF8 then we
* just interpret it as 1 byte per character to avoid converting
* twice.
*/
if (!type)
type = 1;
else
type |= BUF_TYPE_CONVUTF8;
}
len = do_buf(str->data, str->length, type, flags, "es, io_ch, NULL);
if (len < 0)
return -1;
outlen += len;
if (quotes)
outlen += 2;
if (!arg)
return outlen;
if (quotes && !io_ch(arg, "\"", 1))
return -1;
if (do_buf(str->data, str->length, type, flags, NULL, io_ch, arg) < 0)
return -1;
if (quotes && !io_ch(arg, "\"", 1))
return -1;
return outlen;
}
