/src/openssl/crypto/asn1/tasn_prn.c

Source
/*
 * Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stddef.h>
#include "internal/cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/objects.h>
#include <openssl/buffer.h>
#include <openssl/err.h>
#include <openssl/x509v3.h>
#include "crypto/asn1.h"
#include "asn1_local.h"

/*
 * Print routines.
 */

/* ASN1_PCTX routines */

static ASN1_PCTX default_pctx = {
    ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */
    0, /* nm_flags */
    0, /* cert_flags */
    0, /* oid_flags */
    0 /* str_flags */
};

ASN1_PCTX *ASN1_PCTX_new(void)
{
    ASN1_PCTX *ret;

    ret = OPENSSL_zalloc(sizeof(*ret));
    if (ret == NULL)
        return NULL;
    return ret;
}

void ASN1_PCTX_free(ASN1_PCTX *p)
{
    OPENSSL_free(p);
}

unsigned long ASN1_PCTX_get_flags(const ASN1_PCTX *p)
{
    return p->flags;
}

void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags)
{
    p->flags = flags;
}

unsigned long ASN1_PCTX_get_nm_flags(const ASN1_PCTX *p)
{
    return p->nm_flags;
}

void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags)
{
    p->nm_flags = flags;
}

unsigned long ASN1_PCTX_get_cert_flags(const ASN1_PCTX *p)
{
    return p->cert_flags;
}

void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags)
{
    p->cert_flags = flags;
}

unsigned long ASN1_PCTX_get_oid_flags(const ASN1_PCTX *p)
{
    return p->oid_flags;
}

void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags)
{
    p->oid_flags = flags;
}

unsigned long ASN1_PCTX_get_str_flags(const ASN1_PCTX *p)
{
    return p->str_flags;
}

void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags)
{
    p->str_flags = flags;
}

/* Main print routines */

static int asn1_item_print_ctx(BIO *out, const ASN1_VALUE **fld, int indent,
    const ASN1_ITEM *it,
    const char *fname, const char *sname,
    int nohdr, const ASN1_PCTX *pctx);

static int asn1_template_print_ctx(BIO *out, const ASN1_VALUE **fld, int indent,
    const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx);

static int asn1_primitive_print(BIO *out, const ASN1_VALUE **fld,
    const ASN1_ITEM *it, int indent,
    const char *fname, const char *sname,
    const ASN1_PCTX *pctx);

static int asn1_print_fsname(BIO *out, int indent,
    const char *fname, const char *sname,
    const ASN1_PCTX *pctx);

int ASN1_item_print(BIO *out, const ASN1_VALUE *ifld, int indent,
    const ASN1_ITEM *it, const ASN1_PCTX *pctx)
{
    const char *sname;
    if (pctx == NULL)
        pctx = &default_pctx;
    if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
        sname = NULL;
    else
        sname = it->sname;
    return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname, 0, pctx);
}

static int asn1_item_print_ctx(BIO *out, const ASN1_VALUE **fld, int indent,
    const ASN1_ITEM *it,
    const char *fname, const char *sname,
    int nohdr, const ASN1_PCTX *pctx)
{
    const ASN1_TEMPLATE *tt;
    const ASN1_EXTERN_FUNCS *ef;
    const ASN1_VALUE **tmpfld;
    const ASN1_AUX *aux = it->funcs;
    ASN1_PRINT_ARG parg;
    int i;
    if (aux != NULL) {
        parg.out = out;
        parg.indent = indent;
        parg.pctx = pctx;
    }

    if (((it->itype != ASN1_ITYPE_PRIMITIVE)
            || (it->utype != V_ASN1_BOOLEAN))
        && *fld == NULL) {
        if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) {
            if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
                return 0;
            if (BIO_puts(out, "<ABSENT>\n") <= 0)
                return 0;
        }
        return 1;
    }

    switch (it->itype) {
    case ASN1_ITYPE_PRIMITIVE:
        if (it->templates) {
            if (!asn1_template_print_ctx(out, fld, indent,
                    it->templates, pctx))
                return 0;
            break;
        }
        /* fall through */
    case ASN1_ITYPE_MSTRING:
        if (!asn1_primitive_print(out, fld, it, indent, fname, sname, pctx))
            return 0;
        break;

    case ASN1_ITYPE_EXTERN:
        if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
            return 0;
        /* Use new style print routine if possible */
        ef = it->funcs;
        if (ef && ef->asn1_ex_print) {
            i = ef->asn1_ex_print(out, fld, indent, "", pctx);
            if (!i)
                return 0;
            if ((i == 2) && (BIO_puts(out, "\n") <= 0))
                return 0;
            return 1;
        } else if (sname && BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0)
            return 0;
        break;

    case ASN1_ITYPE_CHOICE:
        /* CHOICE type, get selector */
        i = ossl_asn1_get_choice_selector_const(fld, it);
        /* This should never happen... */
        if ((i < 0) || (i >= it->tcount)) {
            if (BIO_printf(out, "ERROR: selector [%d] invalid\n", i) <= 0)
                return 0;
            return 1;
        }
        tt = it->templates + i;
        tmpfld = ossl_asn1_get_const_field_ptr(fld, tt);
        if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx))
            return 0;
        break;

    case ASN1_ITYPE_SEQUENCE:
    case ASN1_ITYPE_NDEF_SEQUENCE:
        if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
            return 0;
        if (fname || sname) {
            if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
                if (BIO_puts(out, " {\n") <= 0)
                    return 0;
            } else {
                if (BIO_puts(out, "\n") <= 0)
                    return 0;
            }
        }

        i = ossl_asn1_call_aux_cb(aux, ASN1_OP_PRINT_PRE, fld, it, &parg);
        if (i == 0)
            return 0;
        if (i == 2)
            return 1;

        /* Print each field entry */
        for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
            const ASN1_TEMPLATE *seqtt;
            seqtt = ossl_asn1_do_adb(*fld, tt, 1);
            if (!seqtt)
                return 0;
            tmpfld = ossl_asn1_get_const_field_ptr(fld, seqtt);
            if (!asn1_template_print_ctx(out, tmpfld,
                    indent + 2, seqtt, pctx))
                return 0;
        }
        if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
            if (BIO_printf(out, "%*s}\n", indent, "") < 0)
                return 0;
        }

        i = ossl_asn1_call_aux_cb(aux, ASN1_OP_PRINT_POST, fld, it, &parg);
        if (i == 0)
            return 0;
        break;

    default:
        BIO_printf(out, "Unprocessed type %d\n", it->itype);
        return 0;
    }

    return 1;
}

static int asn1_template_print_ctx(BIO *out, const ASN1_VALUE **fld, int indent,
    const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx)
{
    int i, flags;
    const char *sname, *fname;
    const ASN1_VALUE *tfld;
    flags = tt->flags;
    if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME)
        sname = ASN1_ITEM_ptr(tt->item)->sname;
    else
        sname = NULL;
    if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
        fname = NULL;
    else
        fname = tt->field_name;

    /*
     * If field is embedded then fld needs fixing so it is a pointer to
     * a pointer to a field.
     */
    if (flags & ASN1_TFLG_EMBED) {
        tfld = (const ASN1_VALUE *)fld;
        fld = &tfld;
    }

    if (flags & ASN1_TFLG_SK_MASK) {
        char *tname;
        const ASN1_VALUE *skitem;
        STACK_OF(const_ASN1_VALUE) *stack;

        /* SET OF, SEQUENCE OF */
        if (fname) {
            if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) {
                if (flags & ASN1_TFLG_SET_OF)
                    tname = "SET";
                else
                    tname = "SEQUENCE";
                if (BIO_printf(out, "%*s%s OF %s {\n",
                        indent, "", tname, tt->field_name)
                    <= 0)
                    return 0;
            } else if (BIO_printf(out, "%*s%s:\n", indent, "", fname) <= 0)
                return 0;
        }
        stack = (STACK_OF(const_ASN1_VALUE) *)*fld;
        for (i = 0; i < sk_const_ASN1_VALUE_num(stack); i++) {
            if ((i > 0) && (BIO_puts(out, "\n") <= 0))
                return 0;

            skitem = sk_const_ASN1_VALUE_value(stack, i);
            if (!asn1_item_print_ctx(out, &skitem, indent + 2,
                    ASN1_ITEM_ptr(tt->item), NULL, NULL, 1,
                    pctx))
                return 0;
        }
        if (i == 0 && BIO_printf(out, "%*s<%s>\n", indent + 2, "", stack == NULL ? "ABSENT" : "EMPTY") <= 0)
            return 0;
        if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
            if (BIO_printf(out, "%*s}\n", indent, "") <= 0)
                return 0;
        }
        return 1;
    }
    return asn1_item_print_ctx(out, fld, indent, ASN1_ITEM_ptr(tt->item),
        fname, sname, 0, pctx);
}

static int asn1_print_fsname(BIO *out, int indent,
    const char *fname, const char *sname,
    const ASN1_PCTX *pctx)
{
    static const char spaces[] = "                    ";
    static const int nspaces = sizeof(spaces) - 1;

    while (indent > nspaces) {
        if (BIO_write(out, spaces, nspaces) != nspaces)
            return 0;
        indent -= nspaces;
    }
    if (BIO_write(out, spaces, indent) != indent)
        return 0;
    if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
        sname = NULL;
    if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
        fname = NULL;
    if (!sname && !fname)
        return 1;
    if (fname) {
        if (BIO_puts(out, fname) <= 0)
            return 0;
    }
    if (sname) {
        if (fname) {
            if (BIO_printf(out, " (%s)", sname) <= 0)
                return 0;
        } else {
            if (BIO_puts(out, sname) <= 0)
                return 0;
        }
    }
    if (BIO_write(out, ": ", 2) != 2)
        return 0;
    return 1;
}

static int asn1_print_boolean(BIO *out, int boolval)
{
    const char *str;
    switch (boolval) {
    case -1:
        str = "BOOL ABSENT";
        break;

    case 0:
        str = "FALSE";
        break;

    default:
        str = "TRUE";
        break;
    }

    if (BIO_puts(out, str) <= 0)
        return 0;
    return 1;
}

static int asn1_print_integer(BIO *out, const ASN1_INTEGER *str)
{
    char *s;
    int ret = 1;
    s = i2s_ASN1_INTEGER(NULL, str);
    if (s == NULL)
        return 0;
    if (BIO_puts(out, s) <= 0)
        ret = 0;
    OPENSSL_free(s);
    return ret;
}

static int asn1_print_oid(BIO *out, const ASN1_OBJECT *oid)
{
    char objbuf[80];
    const char *ln;
    ln = OBJ_nid2ln(OBJ_obj2nid(oid));
    if (!ln)
        ln = "";
    OBJ_obj2txt(objbuf, sizeof(objbuf), oid, 1);
    if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0)
        return 0;
    return 1;
}

static int asn1_print_obstring(BIO *out, const ASN1_STRING *str, int indent)
{
    if (str->type == V_ASN1_BIT_STRING) {
        if (BIO_printf(out, " (%ld unused bits)\n", str->flags & 0x7) <= 0)
            return 0;
    } else if (BIO_puts(out, "\n") <= 0)
        return 0;
    if ((str->length > 0)
        && BIO_dump_indent(out, (const char *)str->data, str->length,
               indent + 2)
            <= 0)
        return 0;
    return 1;
}

static int asn1_primitive_print(BIO *out, const ASN1_VALUE **fld,
    const ASN1_ITEM *it, int indent,
    const char *fname, const char *sname,
    const ASN1_PCTX *pctx)
{
    long utype;
    ASN1_STRING *str;
    int ret = 1, needlf = 1;
    const char *pname;
    const ASN1_PRIMITIVE_FUNCS *pf;
    pf = it->funcs;
    if (!asn1_print_fsname(out, indent, fname, sname, pctx))
        return 0;
    if (pf && pf->prim_print)
        return pf->prim_print(out, fld, it, indent, pctx);
    if (it->itype == ASN1_ITYPE_MSTRING) {
        str = (ASN1_STRING *)*fld;
        utype = str->type & ~V_ASN1_NEG;
    } else {
        utype = it->utype;
        if (utype == V_ASN1_BOOLEAN)
            str = NULL;
        else
            str = (ASN1_STRING *)*fld;
    }
    if (utype == V_ASN1_ANY) {
        const ASN1_TYPE *atype = (const ASN1_TYPE *)*fld;
        utype = atype->type;
        fld = (const ASN1_VALUE **)&atype->value.asn1_value; /* actually is const */
        str = (ASN1_STRING *)*fld;
        if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE)
            pname = NULL;
        else
            pname = ASN1_tag2str(utype);
    } else {
        if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE)
            pname = ASN1_tag2str(utype);
        else
            pname = NULL;
    }

    if (utype == V_ASN1_NULL) {
        if (BIO_puts(out, "NULL\n") <= 0)
            return 0;
        return 1;
    }

    if (pname) {
        if (BIO_puts(out, pname) <= 0)
            return 0;
        if (BIO_puts(out, ":") <= 0)
            return 0;
    }

    switch (utype) {
    case V_ASN1_BOOLEAN: {
        int boolval = *(int *)fld;
        if (boolval == -1)
            boolval = it->size;
        ret = asn1_print_boolean(out, boolval);
    } break;

    case V_ASN1_INTEGER:
    case V_ASN1_ENUMERATED:
        ret = asn1_print_integer(out, str);
        break;

    case V_ASN1_UTCTIME:
        ret = ASN1_UTCTIME_print(out, str);
        break;

    case V_ASN1_GENERALIZEDTIME:
        ret = ASN1_GENERALIZEDTIME_print(out, str);
        break;

    case V_ASN1_OBJECT:
        ret = asn1_print_oid(out, (const ASN1_OBJECT *)*fld);
        break;

    case V_ASN1_OCTET_STRING:
    case V_ASN1_BIT_STRING:
        ret = asn1_print_obstring(out, str, indent);
        needlf = 0;
        break;

    case V_ASN1_SEQUENCE:
    case V_ASN1_SET:
    case V_ASN1_OTHER:
        if (BIO_puts(out, "\n") <= 0)
            return 0;
        if (ASN1_parse_dump(out, str->data, str->length, indent, 0) <= 0)
            ret = 0;
        needlf = 0;
        break;

    default:
        ret = ASN1_STRING_print_ex(out, str, pctx->str_flags);
    }
    if (!ret)
        return 0;
    if (needlf && BIO_puts(out, "\n") <= 0)
        return 0;
    return 1;
}

Coverage Report

Created: 2026-07-16 06:59

Line	Count	Source
1		/*
2		* Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stddef.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/asn1.h>
13		#include <openssl/asn1t.h>
14		#include <openssl/objects.h>
15		#include <openssl/buffer.h>
16		#include <openssl/err.h>
17		#include <openssl/x509v3.h>
18		#include "crypto/asn1.h"
19		#include "asn1_local.h"
20
21		/*
22		* Print routines.
23		*/
24
25		/* ASN1_PCTX routines */
26
27		static ASN1_PCTX default_pctx = {
28		ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */
29		0, /* nm_flags */
30		0, /* cert_flags */
31		0, /* oid_flags */
32		0 /* str_flags */
33		};
34
35		ASN1_PCTX *ASN1_PCTX_new(void)
36	0	{
37	0	ASN1_PCTX *ret;
38
39	0	ret = OPENSSL_zalloc(sizeof(*ret));
40	0	if (ret == NULL)
41	0	return NULL;
42	0	return ret;
43	0	}
44
45		void ASN1_PCTX_free(ASN1_PCTX *p)
46	0	{
47	0	OPENSSL_free(p);
48	0	}
49
50		unsigned long ASN1_PCTX_get_flags(const ASN1_PCTX *p)
51	0	{
52	0	return p->flags;
53	0	}
54
55		void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags)
56	0	{
57	0	p->flags = flags;
58	0	}
59
60		unsigned long ASN1_PCTX_get_nm_flags(const ASN1_PCTX *p)
61	0	{
62	0	return p->nm_flags;
63	0	}
64
65		void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags)
66	0	{
67	0	p->nm_flags = flags;
68	0	}
69
70		unsigned long ASN1_PCTX_get_cert_flags(const ASN1_PCTX *p)
71	0	{
72	0	return p->cert_flags;
73	0	}
74
75		void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags)
76	0	{
77	0	p->cert_flags = flags;
78	0	}
79
80		unsigned long ASN1_PCTX_get_oid_flags(const ASN1_PCTX *p)
81	0	{
82	0	return p->oid_flags;
83	0	}
84
85		void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags)
86	0	{
87	0	p->oid_flags = flags;
88	0	}
89
90		unsigned long ASN1_PCTX_get_str_flags(const ASN1_PCTX *p)
91	0	{
92	0	return p->str_flags;
93	0	}
94
95		void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags)
96	0	{
97	0	p->str_flags = flags;
98	0	}
99
100		/* Main print routines */
101
102		static int asn1_item_print_ctx(BIO out, const ASN1_VALUE *fld, int indent,
103		const ASN1_ITEM *it,
104		const char fname, const char sname,
105		int nohdr, const ASN1_PCTX *pctx);
106
107		static int asn1_template_print_ctx(BIO out, const ASN1_VALUE *fld, int indent,
108		const ASN1_TEMPLATE tt, const ASN1_PCTX pctx);
109
110		static int asn1_primitive_print(BIO out, const ASN1_VALUE *fld,
111		const ASN1_ITEM *it, int indent,
112		const char fname, const char sname,
113		const ASN1_PCTX *pctx);
114
115		static int asn1_print_fsname(BIO *out, int indent,
116		const char fname, const char sname,
117		const ASN1_PCTX *pctx);
118
119		int ASN1_item_print(BIO out, const ASN1_VALUE ifld, int indent,
120		const ASN1_ITEM it, const ASN1_PCTX pctx)
121	0	{
122	0	const char *sname;
123	0	if (pctx == NULL)
124	0	pctx = &default_pctx;
125	0	if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
126	0	sname = NULL;
127	0	else
128	0	sname = it->sname;
129	0	return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname, 0, pctx);
130	0	}
131
132		static int asn1_item_print_ctx(BIO out, const ASN1_VALUE *fld, int indent,
133		const ASN1_ITEM *it,
134		const char fname, const char sname,
135		int nohdr, const ASN1_PCTX *pctx)
136	0	{
137	0	const ASN1_TEMPLATE *tt;
138	0	const ASN1_EXTERN_FUNCS *ef;
139	0	const ASN1_VALUE **tmpfld;
140	0	const ASN1_AUX *aux = it->funcs;
141	0	ASN1_PRINT_ARG parg;
142	0	int i;
143	0	if (aux != NULL) {
144	0	parg.out = out;
145	0	parg.indent = indent;
146	0	parg.pctx = pctx;
147	0	}
148
149	0	if (((it->itype != ASN1_ITYPE_PRIMITIVE)
150	0	\|\| (it->utype != V_ASN1_BOOLEAN))
151	0	&& *fld == NULL) {
152	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) {
153	0	if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
154	0	return 0;
155	0	if (BIO_puts(out, "<ABSENT>\n") <= 0)
156	0	return 0;
157	0	}
158	0	return 1;
159	0	}
160
161	0	switch (it->itype) {
162	0	case ASN1_ITYPE_PRIMITIVE:
163	0	if (it->templates) {
164	0	if (!asn1_template_print_ctx(out, fld, indent,
165	0	it->templates, pctx))
166	0	return 0;
167	0	break;
168	0	}
169		/* fall through */
170	0	case ASN1_ITYPE_MSTRING:
171	0	if (!asn1_primitive_print(out, fld, it, indent, fname, sname, pctx))
172	0	return 0;
173	0	break;
174
175	0	case ASN1_ITYPE_EXTERN:
176	0	if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
177	0	return 0;
178		/* Use new style print routine if possible */
179	0	ef = it->funcs;
180	0	if (ef && ef->asn1_ex_print) {
181	0	i = ef->asn1_ex_print(out, fld, indent, "", pctx);
182	0	if (!i)
183	0	return 0;
184	0	if ((i == 2) && (BIO_puts(out, "\n") <= 0))
185	0	return 0;
186	0	return 1;
187	0	} else if (sname && BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0)
188	0	return 0;
189	0	break;
190
191	0	case ASN1_ITYPE_CHOICE:
192		/* CHOICE type, get selector */
193	0	i = ossl_asn1_get_choice_selector_const(fld, it);
194		/* This should never happen... */
195	0	if ((i < 0) \|\| (i >= it->tcount)) {
196	0	if (BIO_printf(out, "ERROR: selector [%d] invalid\n", i) <= 0)
197	0	return 0;
198	0	return 1;
199	0	}
200	0	tt = it->templates + i;
201	0	tmpfld = ossl_asn1_get_const_field_ptr(fld, tt);
202	0	if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx))
203	0	return 0;
204	0	break;
205
206	0	case ASN1_ITYPE_SEQUENCE:
207	0	case ASN1_ITYPE_NDEF_SEQUENCE:
208	0	if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
209	0	return 0;
210	0	if (fname \|\| sname) {
211	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
212	0	if (BIO_puts(out, " {\n") <= 0)
213	0	return 0;
214	0	} else {
215	0	if (BIO_puts(out, "\n") <= 0)
216	0	return 0;
217	0	}
218	0	}
219
220	0	i = ossl_asn1_call_aux_cb(aux, ASN1_OP_PRINT_PRE, fld, it, &parg);
221	0	if (i == 0)
222	0	return 0;
223	0	if (i == 2)
224	0	return 1;
225
226		/* Print each field entry */
227	0	for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
228	0	const ASN1_TEMPLATE *seqtt;
229	0	seqtt = ossl_asn1_do_adb(*fld, tt, 1);
230	0	if (!seqtt)
231	0	return 0;
232	0	tmpfld = ossl_asn1_get_const_field_ptr(fld, seqtt);
233	0	if (!asn1_template_print_ctx(out, tmpfld,
234	0	indent + 2, seqtt, pctx))
235	0	return 0;
236	0	}
237	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
238	0	if (BIO_printf(out, "%*s}\n", indent, "") < 0)
239	0	return 0;
240	0	}
241
242	0	i = ossl_asn1_call_aux_cb(aux, ASN1_OP_PRINT_POST, fld, it, &parg);
243	0	if (i == 0)
244	0	return 0;
245	0	break;
246
247	0	default:
248	0	BIO_printf(out, "Unprocessed type %d\n", it->itype);
249	0	return 0;
250	0	}
251
252	0	return 1;
253	0	}
254
255		static int asn1_template_print_ctx(BIO out, const ASN1_VALUE *fld, int indent,
256		const ASN1_TEMPLATE tt, const ASN1_PCTX pctx)
257	0	{
258	0	int i, flags;
259	0	const char sname, fname;
260	0	const ASN1_VALUE *tfld;
261	0	flags = tt->flags;
262	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME)
263	0	sname = ASN1_ITEM_ptr(tt->item)->sname;
264	0	else
265	0	sname = NULL;
266	0	if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
267	0	fname = NULL;
268	0	else
269	0	fname = tt->field_name;
270
271		/*
272		* If field is embedded then fld needs fixing so it is a pointer to
273		* a pointer to a field.
274		*/
275	0	if (flags & ASN1_TFLG_EMBED) {
276	0	tfld = (const ASN1_VALUE *)fld;
277	0	fld = &tfld;
278	0	}
279
280	0	if (flags & ASN1_TFLG_SK_MASK) {
281	0	char *tname;
282	0	const ASN1_VALUE *skitem;
283	0	STACK_OF(const_ASN1_VALUE) *stack;
284
285		/* SET OF, SEQUENCE OF */
286	0	if (fname) {
287	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) {
288	0	if (flags & ASN1_TFLG_SET_OF)
289	0	tname = "SET";
290	0	else
291	0	tname = "SEQUENCE";
292	0	if (BIO_printf(out, "%*s%s OF %s {\n",
293	0	indent, "", tname, tt->field_name)
294	0	<= 0)
295	0	return 0;
296	0	} else if (BIO_printf(out, "%*s%s:\n", indent, "", fname) <= 0)
297	0	return 0;
298	0	}
299	0	stack = (STACK_OF(const_ASN1_VALUE) )fld;
300	0	for (i = 0; i < sk_const_ASN1_VALUE_num(stack); i++) {
301	0	if ((i > 0) && (BIO_puts(out, "\n") <= 0))
302	0	return 0;
303
304	0	skitem = sk_const_ASN1_VALUE_value(stack, i);
305	0	if (!asn1_item_print_ctx(out, &skitem, indent + 2,
306	0	ASN1_ITEM_ptr(tt->item), NULL, NULL, 1,
307	0	pctx))
308	0	return 0;
309	0	}
310	0	if (i == 0 && BIO_printf(out, "%*s<%s>\n", indent + 2, "", stack == NULL ? "ABSENT" : "EMPTY") <= 0)
311	0	return 0;
312	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
313	0	if (BIO_printf(out, "%*s}\n", indent, "") <= 0)
314	0	return 0;
315	0	}
316	0	return 1;
317	0	}
318	0	return asn1_item_print_ctx(out, fld, indent, ASN1_ITEM_ptr(tt->item),
319	0	fname, sname, 0, pctx);
320	0	}
321
322		static int asn1_print_fsname(BIO *out, int indent,
323		const char fname, const char sname,
324		const ASN1_PCTX *pctx)
325	0	{
326	0	static const char spaces[] = " ";
327	0	static const int nspaces = sizeof(spaces) - 1;
328
329	0	while (indent > nspaces) {
330	0	if (BIO_write(out, spaces, nspaces) != nspaces)
331	0	return 0;
332	0	indent -= nspaces;
333	0	}
334	0	if (BIO_write(out, spaces, indent) != indent)
335	0	return 0;
336	0	if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
337	0	sname = NULL;
338	0	if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
339	0	fname = NULL;
340	0	if (!sname && !fname)
341	0	return 1;
342	0	if (fname) {
343	0	if (BIO_puts(out, fname) <= 0)
344	0	return 0;
345	0	}
346	0	if (sname) {
347	0	if (fname) {
348	0	if (BIO_printf(out, " (%s)", sname) <= 0)
349	0	return 0;
350	0	} else {
351	0	if (BIO_puts(out, sname) <= 0)
352	0	return 0;
353	0	}
354	0	}
355	0	if (BIO_write(out, ": ", 2) != 2)
356	0	return 0;
357	0	return 1;
358	0	}
359
360		static int asn1_print_boolean(BIO *out, int boolval)
361	0	{
362	0	const char *str;
363	0	switch (boolval) {
364	0	case -1:
365	0	str = "BOOL ABSENT";
366	0	break;
367
368	0	case 0:
369	0	str = "FALSE";
370	0	break;
371
372	0	default:
373	0	str = "TRUE";
374	0	break;
375	0	}
376
377	0	if (BIO_puts(out, str) <= 0)
378	0	return 0;
379	0	return 1;
380	0	}
381
382		static int asn1_print_integer(BIO out, const ASN1_INTEGER str)
383	0	{
384	0	char *s;
385	0	int ret = 1;
386	0	s = i2s_ASN1_INTEGER(NULL, str);
387	0	if (s == NULL)
388	0	return 0;
389	0	if (BIO_puts(out, s) <= 0)
390	0	ret = 0;
391	0	OPENSSL_free(s);
392	0	return ret;
393	0	}
394
395		static int asn1_print_oid(BIO out, const ASN1_OBJECT oid)
396	0	{
397	0	char objbuf[80];
398	0	const char *ln;
399	0	ln = OBJ_nid2ln(OBJ_obj2nid(oid));
400	0	if (!ln)
401	0	ln = "";
402	0	OBJ_obj2txt(objbuf, sizeof(objbuf), oid, 1);
403	0	if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0)
404	0	return 0;
405	0	return 1;
406	0	}
407
408		static int asn1_print_obstring(BIO out, const ASN1_STRING str, int indent)
409	0	{
410	0	if (str->type == V_ASN1_BIT_STRING) {
411	0	if (BIO_printf(out, " (%ld unused bits)\n", str->flags & 0x7) <= 0)
412	0	return 0;
413	0	} else if (BIO_puts(out, "\n") <= 0)
414	0	return 0;
415	0	if ((str->length > 0)
416	0	&& BIO_dump_indent(out, (const char *)str->data, str->length,
417	0	indent + 2)
418	0	<= 0)
419	0	return 0;
420	0	return 1;
421	0	}
422
423		static int asn1_primitive_print(BIO out, const ASN1_VALUE *fld,
424		const ASN1_ITEM *it, int indent,
425		const char fname, const char sname,
426		const ASN1_PCTX *pctx)
427	0	{
428	0	long utype;
429	0	ASN1_STRING *str;
430	0	int ret = 1, needlf = 1;
431	0	const char *pname;
432	0	const ASN1_PRIMITIVE_FUNCS *pf;
433	0	pf = it->funcs;
434	0	if (!asn1_print_fsname(out, indent, fname, sname, pctx))
435	0	return 0;
436	0	if (pf && pf->prim_print)
437	0	return pf->prim_print(out, fld, it, indent, pctx);
438	0	if (it->itype == ASN1_ITYPE_MSTRING) {
439	0	str = (ASN1_STRING )fld;
440	0	utype = str->type & ~V_ASN1_NEG;
441	0	} else {
442	0	utype = it->utype;
443	0	if (utype == V_ASN1_BOOLEAN)
444	0	str = NULL;
445	0	else
446	0	str = (ASN1_STRING )fld;
447	0	}
448	0	if (utype == V_ASN1_ANY) {
449	0	const ASN1_TYPE atype = (const ASN1_TYPE )*fld;
450	0	utype = atype->type;
451	0	fld = (const ASN1_VALUE *)&atype->value.asn1_value; / actually is const */
452	0	str = (ASN1_STRING )fld;
453	0	if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE)
454	0	pname = NULL;
455	0	else
456	0	pname = ASN1_tag2str(utype);
457	0	} else {
458	0	if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE)
459	0	pname = ASN1_tag2str(utype);
460	0	else
461	0	pname = NULL;
462	0	}
463
464	0	if (utype == V_ASN1_NULL) {
465	0	if (BIO_puts(out, "NULL\n") <= 0)
466	0	return 0;
467	0	return 1;
468	0	}
469
470	0	if (pname) {
471	0	if (BIO_puts(out, pname) <= 0)
472	0	return 0;
473	0	if (BIO_puts(out, ":") <= 0)
474	0	return 0;
475	0	}
476
477	0	switch (utype) {
478	0	case V_ASN1_BOOLEAN: {
479	0	int boolval = (int )fld;
480	0	if (boolval == -1)
481	0	boolval = it->size;
482	0	ret = asn1_print_boolean(out, boolval);
483	0	} break;
484
485	0	case V_ASN1_INTEGER:
486	0	case V_ASN1_ENUMERATED:
487	0	ret = asn1_print_integer(out, str);
488	0	break;
489
490	0	case V_ASN1_UTCTIME:
491	0	ret = ASN1_UTCTIME_print(out, str);
492	0	break;
493
494	0	case V_ASN1_GENERALIZEDTIME:
495	0	ret = ASN1_GENERALIZEDTIME_print(out, str);
496	0	break;
497
498	0	case V_ASN1_OBJECT:
499	0	ret = asn1_print_oid(out, (const ASN1_OBJECT )fld);
500	0	break;
501
502	0	case V_ASN1_OCTET_STRING:
503	0	case V_ASN1_BIT_STRING:
504	0	ret = asn1_print_obstring(out, str, indent);
505	0	needlf = 0;
506	0	break;
507
508	0	case V_ASN1_SEQUENCE:
509	0	case V_ASN1_SET:
510	0	case V_ASN1_OTHER:
511	0	if (BIO_puts(out, "\n") <= 0)
512	0	return 0;
513	0	if (ASN1_parse_dump(out, str->data, str->length, indent, 0) <= 0)
514	0	ret = 0;
515	0	needlf = 0;
516	0	break;
517
518	0	default:
519	0	ret = ASN1_STRING_print_ex(out, str, pctx->str_flags);
520	0	}
521	0	if (!ret)
522	0	return 0;
523	0	if (needlf && BIO_puts(out, "\n") <= 0)
524	0	return 0;
525	0	return 1;
526	0	}