weeded the library out of unber program
diff --git a/asn1-tools/unber/libasn1_unber_tool.c b/asn1-tools/unber/libasn1_unber_tool.c
new file mode 100644
index 0000000..d956772
--- /dev/null
+++ b/asn1-tools/unber/libasn1_unber_tool.c
@@ -0,0 +1,754 @@
+/*
+ * Copyright (c) 2004, 2005, 2006 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#include "asn1_common.h"
+#include "libasn1_unber_tool.h"
+
+#define ASN_DISABLE_PER_SUPPORT 1
+#define ASN_DISABLE_OER_SUPPORT 1
+
+#include <asn1parser.h> /* For static string tables */
+
+#include <asn_application.h>
+#include <constraints.c>
+#include <ber_tlv_tag.c>
+#include <ber_tlv_length.c>
+#include <INTEGER.c>
+#include <OBJECT_IDENTIFIER.c>
+#include <RELATIVE-OID.c>
+#include <asn_codecs_prim.c>
+#include <asn1p_integer.c>
+#include <asn_internal.c>
+
+static int single_type_decoding = 0;   /* -1 enables that */
+static int minimalistic = 0;           /* -m enables that */
+static int pretty_printing = 1;        /* -p disables that */
+static long skip_bytes = 0;            /* -s controls that */
+static char indent_bytes[16] = "    "; /* -i controls that */
+
+void set_minimalistic_output(int v) { minimalistic = v; }
+void set_single_type_decoding(int v) { single_type_decoding = v; }
+void set_pretty_printing(int v) { pretty_printing = v; }
+int set_skip_bytes(long v) { if(v < 0) return -1; skip_bytes = v; return 0; }
+int set_indent_size(int indent_size) {
+    if(indent_size < 0 || indent_size >= (int)sizeof(indent_bytes)) {
+        return -1;
+    }
+    memset(indent_bytes, ' ', indent_size);
+    indent_bytes[indent_size] = '\0';
+    return 0;
+}
+
+typedef enum pd_code {
+    PD_FAILED = -1,
+    PD_FINISHED = 0,
+    PD_EOF = 1,
+} pd_code_e;
+static pd_code_e process_deeper(const char *fname, FILE *fp,
+                                size_t *offset, int level,
+                                ssize_t limit, ber_tlv_len_t *frame_size,
+                                ber_tlv_len_t effective_size, int expect_eoc);
+static void print_TL(int fin, size_t offset, int level, int constr,
+                     ssize_t tlen, ber_tlv_tag_t, ber_tlv_len_t,
+                     ber_tlv_len_t effective_frame_size);
+static int print_V(const char *fname, FILE *fp, ber_tlv_tag_t, ber_tlv_len_t);
+
+/*
+ * Open the file and initiate recursive processing.
+ */
+static int
+unber_stream(const char *fname, FILE *fp) {
+    pd_code_e pdc;
+    size_t offset = 0;   /* Stream decoding position */
+    ber_tlv_len_t frame_size = 0; /* Single frame size */
+
+    /*
+     * Skip the requested amount of bytes.
+     */
+    for(; offset < (size_t)skip_bytes; offset++) {
+        if(fgetc(fp) == -1) {
+            fprintf(stderr, "%s: input source (%zu bytes) "
+                            "has less data than \"-s %ld\" switch "
+                            "wants to skip\n",
+                    fname, offset, skip_bytes);
+            return -1;
+        }
+    }
+
+    /*
+     * Fetch out BER-encoded data until EOF or error.
+     */
+    do {
+        pdc = process_deeper(fname, fp, &offset, 0, -1, &frame_size, 0, 0);
+    } while(pdc == PD_FINISHED && !single_type_decoding);
+
+    if(pdc == PD_FAILED) return -1;
+    return 0;
+}
+
+/*
+ * Process the TLV recursively.
+ */
+static pd_code_e
+process_deeper(const char *fname, FILE *fp, size_t *offset, int level,
+               ssize_t limit, ber_tlv_len_t *frame_size,
+               ber_tlv_len_t effective_size, int expect_eoc) {
+    unsigned char tagbuf[32];
+    ssize_t tblen = 0;
+    pd_code_e pdc = PD_FINISHED;
+    ber_tlv_tag_t tlv_tag;
+    ber_tlv_len_t tlv_len;
+    ssize_t t_len;
+    ssize_t l_len;
+
+    for(;;) {
+        ber_tlv_len_t local_esize = 0;
+        int constr;
+        int ch;
+
+        if(limit == 0) return PD_FINISHED;
+
+        if(limit >= 0 && tblen >= limit) {
+            fprintf(stderr,
+                    "%s: Too long TL sequence (%ld >= %ld)"
+                    " at %zu. "
+                    "Broken or maliciously constructed file\n",
+                    fname, (long)tblen, (long)limit, *offset);
+            return PD_FAILED;
+        }
+
+        /* Get the next byte from the input stream */
+        ch = fgetc(fp);
+        if(ch == -1) {
+            if(limit > 0 || expect_eoc) {
+                fprintf(stderr,
+                        "%s: Unexpected end of file (TL)"
+                        " at %zu\n",
+                        fname, *offset);
+                return PD_FAILED;
+            } else {
+                return PD_EOF;
+            }
+        }
+
+        tagbuf[tblen++] = ch;
+
+        /*
+         * Decode the TLV tag.
+         */
+        t_len = ber_fetch_tag(tagbuf, tblen, &tlv_tag);
+        switch(t_len) {
+        case -1:
+            fprintf(stderr,
+                    "%s: Fatal error decoding tag"
+                    " at %zu+%ld\n",
+                    fname, *offset, (long)tblen);
+            return PD_FAILED;
+        case 0:
+            /* More data expected */
+            continue;
+        }
+
+        /*
+         * Decode the TLV length.
+         */
+        constr = BER_TLV_CONSTRUCTED(tagbuf);
+        l_len =
+            ber_fetch_length(constr, tagbuf + t_len, tblen - t_len, &tlv_len);
+        switch(l_len) {
+        case -1:
+            fprintf(stderr,
+                    "%s: Fatal error decoding value length"
+                    " at %zu\n",
+                    fname, *offset + t_len);
+            return PD_FAILED;
+        case 0:
+            /* More data expected */
+            continue;
+        }
+
+        /* Make sure the T & L decoders took exactly the whole buffer */
+        assert((t_len + l_len) == tblen);
+
+        if(!expect_eoc || tagbuf[0] || tagbuf[1])
+            print_TL(0, *offset, level, constr, tblen, tlv_tag, tlv_len,
+                     effective_size);
+
+        if(limit != -1) {
+            /* If limit is set, account for the TL sequence */
+            limit -= (t_len + l_len);
+            assert(limit >= 0);
+
+            if(tlv_len > limit) {
+                fprintf(stderr,
+                        "%s: Structure advertizes length (%ld) "
+                        "greater than of a parent container (%ld)\n",
+                        fname, (long)tlv_len, (long)limit);
+                return PD_FAILED;
+            }
+        }
+
+        *offset += t_len + l_len;
+        *frame_size += t_len + l_len;
+        effective_size += t_len + l_len;
+        local_esize += t_len + l_len;
+
+        if(expect_eoc && !tagbuf[0] && !tagbuf[1]) {
+            /* End of content octets */
+            print_TL(1, *offset - 2, level - 1, 1, 2, 0, -1, effective_size);
+            return PD_FINISHED;
+        }
+
+        if(constr) {
+            ber_tlv_len_t dec = 0;
+            /*
+             * This is a constructed type. Process recursively.
+             */
+            printf(">\n"); /* Close the opening tag */
+            if(tlv_len != -1 && limit != -1) {
+                assert(limit >= tlv_len);
+            }
+            pdc = process_deeper(fname, fp, offset, level + 1,
+                                 tlv_len == -1 ? limit : tlv_len, &dec,
+                                 t_len + l_len, tlv_len == -1);
+            if(pdc == PD_FAILED) return pdc;
+            if(limit != -1) {
+                assert(limit >= dec);
+                limit -= dec;
+            }
+            *frame_size += dec;
+            effective_size += dec;
+            local_esize += dec;
+            if(tlv_len == -1) {
+                tblen = 0;
+                if(pdc == PD_FINISHED && limit < 0 && !expect_eoc) return pdc;
+                continue;
+            }
+        } else {
+            assert(tlv_len >= 0);
+            if(print_V(fname, fp, tlv_tag, tlv_len)) return PD_FAILED;
+
+            if(limit != -1) {
+                assert(limit >= tlv_len);
+                limit -= tlv_len;
+            }
+            *offset += tlv_len;
+            *frame_size += tlv_len;
+            effective_size += tlv_len;
+            local_esize += tlv_len;
+        }
+
+        print_TL(1, *offset, level, constr, tblen, tlv_tag, tlv_len,
+                 local_esize);
+
+        tblen = 0;
+
+        /* Report success for a single top level TLV */
+        if(level == 0 && limit == -1 && !expect_eoc) break;
+    } /* for(;;) */
+
+    return pdc;
+}
+
+static void
+print_TL(int fin, size_t offset, int level, int constr, ssize_t tlen,
+         ber_tlv_tag_t tlv_tag, ber_tlv_len_t tlv_len,
+         ber_tlv_len_t effective_size) {
+    if(fin && !constr) {
+        printf("</P>\n");
+        return;
+    }
+
+    while(level-- > 0) fputs(indent_bytes, stdout); /* Print indent */
+    printf(fin ? "</" : "<");
+
+    printf(constr ? ((tlv_len == -1) ? "I" : "C") : "P");
+
+    /* Print out the offset of this boundary, even if closing tag */
+    if(!minimalistic) printf(" O=\"%zu\"", offset);
+
+    printf(" T=\"");
+    ber_tlv_tag_fwrite(tlv_tag, stdout);
+    printf("\"");
+
+    if(!fin || (tlv_len == -1 && !minimalistic))
+        printf(" TL=\"%ld\"", (long)tlen);
+    if(!fin) {
+        if(tlv_len == -1)
+            printf(" V=\"Indefinite\"");
+        else
+            printf(" V=\"%ld\"", (long)tlv_len);
+    }
+
+    if(!minimalistic && BER_TAG_CLASS(tlv_tag) == ASN_TAG_CLASS_UNIVERSAL) {
+        const char *str;
+        ber_tlv_tag_t tvalue = BER_TAG_VALUE(tlv_tag);
+        str = ASN_UNIVERSAL_TAG2STR(tvalue);
+        if(str) printf(" A=\"%s\"", str);
+    }
+
+    if(fin) {
+        if(constr && !minimalistic) printf(" L=\"%ld\"", (long)effective_size);
+        printf(">\n");
+    }
+}
+
+/*
+ * Print the value in binary form, or reformat for pretty-printing.
+ */
+static int
+print_V(const char *fname, FILE *fp, ber_tlv_tag_t tlv_tag,
+        ber_tlv_len_t tlv_len) {
+    asn_oid_arc_t *arcs = 0; /* Object identifier arcs */
+    unsigned char *vbuf = 0;
+    asn1p_expr_type_e etype = 0;
+    asn1c_integer_t collector = 0;
+    int special_format = 0;
+    ssize_t i;
+
+    /* Figure out what type is it */
+    if(BER_TAG_CLASS(tlv_tag) == ASN_TAG_CLASS_UNIVERSAL && pretty_printing) {
+        ber_tlv_tag_t tvalue = BER_TAG_VALUE(tlv_tag);
+        etype = ASN_UNIVERSAL_TAG2TYPE(tvalue);
+    }
+
+    /*
+     * Determine how to print the value, either in its native binary form,
+     * encoded with &xNN characters, or using pretty-printing.
+     * The basic string types (including "useful types", like UTCTime)
+     * are excempt from this determination logic, because their alphabets
+     * are subsets of the XML's native UTF-8 encoding.
+     */
+    switch(etype) {
+    case ASN_BASIC_BOOLEAN:
+        if(tlv_len == 1)
+            special_format = 1;
+        else
+            etype = 0;
+        break;
+    case ASN_BASIC_INTEGER:
+    case ASN_BASIC_ENUMERATED:
+        if((size_t)tlv_len <= sizeof(collector))
+            special_format = 1;
+        else
+            etype = 0;
+        break;
+    case ASN_BASIC_OBJECT_IDENTIFIER:
+    case ASN_BASIC_RELATIVE_OID:
+        if(tlv_len > 0 && tlv_len < 128 * 1024 /* VERY long OID! */) {
+            arcs = MALLOC(sizeof(*arcs) * (tlv_len + 1));
+            if(arcs) {
+                vbuf = MALLOC(tlv_len + 1);
+                /* Not checking is intentional */
+            }
+        }
+    case ASN_BASIC_UTCTime:
+    case ASN_BASIC_GeneralizedTime:
+    case ASN_STRING_NumericString:
+    case ASN_STRING_PrintableString:
+    case ASN_STRING_VisibleString:
+    case ASN_STRING_IA5String:
+    case ASN_STRING_UTF8String:
+        break; /* Directly compatible with UTF-8 */
+    case ASN_STRING_BMPString:
+    case ASN_STRING_UniversalString:
+        break; /* Not directly compatible with UTF-8 */
+    default:
+        /* Conditionally compatible with UTF-8 */
+        if(((etype & ASN_STRING_MASK) || (etype == ASN_BASIC_OCTET_STRING) ||
+            /*
+             * AUTOMATIC TAGS or IMPLICIT TAGS in effect,
+             * Treat this primitive type as OCTET_STRING.
+             */
+            (BER_TAG_CLASS(tlv_tag) != ASN_TAG_CLASS_UNIVERSAL
+             && pretty_printing))
+           && (tlv_len > 0 && tlv_len < 128 * 1024)) {
+            vbuf = MALLOC(tlv_len + 1);
+            /* Not checking is intentional */
+        }
+        break;
+    }
+
+    /* If collection vbuf is present, defer printing the F flag. */
+    if(!vbuf) printf(special_format ? " F>" : ">");
+
+    /*
+     * Print the value in binary or text form,
+     * or collect the bytes into vbuf.
+     */
+    for(i = 0; i < tlv_len; i++) {
+        int ch = fgetc(fp);
+        if(ch == -1) {
+            fprintf(stderr, "%s: Unexpected end of file (V)\n", fname);
+            if(vbuf) FREEMEM(vbuf);
+            if(arcs) FREEMEM(arcs);
+            return -1;
+        }
+        switch(etype) {
+        case ASN_BASIC_UTCTime:
+        case ASN_BASIC_GeneralizedTime:
+        case ASN_STRING_NumericString:
+        case ASN_STRING_PrintableString:
+        case ASN_STRING_VisibleString:
+        case ASN_STRING_IA5String:
+        case ASN_STRING_UTF8String:
+            switch(ch) {
+            default:
+                if(((etype == ASN_STRING_UTF8String) || !(ch & 0x80))
+                   && (ch >= 0x20)) {
+                    printf("%c", ch);
+                    break;
+                }
+            /* Fall through */
+            case 0x3c:
+            case 0x3e:
+            case 0x26:
+                printf("&#x%02x;", ch);
+            }
+            break;
+        case ASN_BASIC_BOOLEAN:
+            switch(ch) {
+            case 0:
+                printf("<false/>");
+                break;
+            case 0xff:
+                printf("<true/>");
+                break;
+            default:
+                printf("<true value=\"&#x%02x\"/>", ch);
+            }
+            break;
+        case ASN_BASIC_INTEGER:
+        case ASN_BASIC_ENUMERATED:
+            if(i)
+                collector = collector * 256 + ch;
+            else
+                collector = (int)(signed char)ch;
+            break;
+        default:
+            if(vbuf) {
+                vbuf[i] = ch;
+            } else {
+                printf("&#x%02x;", ch);
+            }
+        }
+    }
+
+    /* Do post-processing */
+    switch(etype) {
+    case ASN_BASIC_INTEGER:
+    case ASN_BASIC_ENUMERATED:
+        printf("%s", asn1p_itoa(collector));
+        break;
+    case ASN_BASIC_OBJECT_IDENTIFIER:
+        if(vbuf) {
+            OBJECT_IDENTIFIER_t oid = {0, 0};
+            ssize_t arcno;
+
+            oid.buf = vbuf;
+            oid.size = tlv_len;
+
+            arcno = OBJECT_IDENTIFIER_get_arcs(&oid, arcs, tlv_len + 1);
+            if(arcno >= 0) {
+                assert(arcno <= (tlv_len + 1));
+                printf(" F>");
+                for(i = 0; i < arcno; i++) {
+                    if(i) printf(".");
+                    printf("%" PRIu32, arcs[i]);
+                }
+                FREEMEM(vbuf);
+                vbuf = 0;
+            }
+        }
+        break;
+    case ASN_BASIC_RELATIVE_OID:
+        if(vbuf) {
+            RELATIVE_OID_t oid;
+            int arcno;
+
+            oid.buf = vbuf;
+            oid.size = tlv_len;
+
+            arcno = RELATIVE_OID_get_arcs(&oid, arcs, tlv_len);
+            if(arcno >= 0) {
+                assert(arcno <= tlv_len);
+                printf(" F>");
+                for(i = 0; i < arcno; i++) {
+                    if(i) printf(".");
+                    printf("%" PRIu32, arcs[i]);
+                }
+                FREEMEM(vbuf);
+                vbuf = 0;
+            }
+        }
+        break;
+    default:
+        break;
+    }
+
+    /*
+     * If the buffer was not consumed, print it out.
+     * It might be an OCTET STRING or other primitive type,
+     * which might actually be printable, but we need to figure it out.
+     */
+    if(vbuf) {
+        int binary;
+
+        /*
+         * Check whether the data could be represented as text
+         */
+        binary = -1 * (tlv_len >> 3); /* Threshold is 12.5% binary */
+        for(i = 0; i < tlv_len; i++) {
+            switch(vbuf[i]) {
+            case 0x1b:
+                binary = 1;
+                break;
+            case 0x09:
+            case 0x0a:
+            case 0x0d:
+                continue;
+            default:
+                if(vbuf[i] < 0x20 || vbuf[i] >= 0x7f)
+                    if(++binary > 0) /* Way too many */
+                        break;
+                continue;
+            }
+            break;
+        }
+        printf(">");
+        for(i = 0; i < tlv_len; i++) {
+            if(binary > 0 || vbuf[i] < 0x20 || vbuf[i] >= 0x7f
+               || vbuf[i] == 0x26 /* '&' */
+               || vbuf[i] == 0x3c /* '<' */
+               || vbuf[i] == 0x3e /* '>' */
+               )
+                printf("&#x%02x;", vbuf[i]);
+            else
+                printf("%c", vbuf[i]);
+        }
+        FREEMEM(vbuf);
+    }
+
+    if(arcs) FREEMEM(arcs);
+    return 0;
+}
+
+int
+unber_file(const char *fname) {
+    FILE *fp;
+
+    if(strcmp(fname, "-")) {
+        fp = fopen(fname, "rb");
+        if(!fp) {
+            perror(fname);
+            return -1;
+        }
+    } else {
+        fp = stdin;
+    }
+
+    int ret = unber_stream(fname, fp);
+
+    if(fp != stdin) fclose(fp);
+
+    return ret;
+}
+
+int
+decode_tlv_from_hex_string(const char *datastring) {
+    unsigned char *data, *dp;
+    size_t dsize; /* Data size */
+    ssize_t len;
+    ber_tlv_tag_t tlv_tag;
+    ber_tlv_len_t tlv_len;
+    const char *p;
+    int half;
+
+    dsize = strlen(datastring) + 1;
+    dp = data = CALLOC(1, dsize);
+    assert(data);
+
+    for(half = 0, p = datastring; *p; p++) {
+        /* clang-format off */
+		switch(*p) {
+		case '0': case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			*dp |= *p - '0'; break;
+		case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+			*dp |= *p - 'A' + 10; break;
+		case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+			*dp |= *p - 'a' + 10; break;
+		case ' ': case '\t': case '\r': case '\n':
+			continue;
+		default:
+			fprintf(stderr, "Unexpected symbols in data string:\n");
+			fprintf(stderr, "%s\n", datastring);
+			for(dp = data; datastring < p; datastring++, dp++)
+				*dp = ' ';
+			*dp = '\0';
+			fprintf(stderr, "%s^ <- here\n", (char *)data);
+			return -1;
+		}
+        /* clang-format on */
+        if(half)
+            dp++;
+        else
+            (*dp) <<= 4;
+        half = !half;
+    }
+
+    assert((size_t)(dp - data) <= dsize);
+    dsize = dp - data;
+
+    printf("BER: ");
+    for(dp = data; dp < data + dsize; dp++) printf("%02X", *dp);
+    printf("\n");
+
+    len = ber_fetch_tag(data, dsize, &tlv_tag);
+    switch(len) {
+    case -1:
+        fprintf(stderr, "TAG: Fatal error decoding tag\n");
+        return -1;
+    case 0:
+        fprintf(stderr, "TAG: More data expected\n");
+        return -1;
+    default:
+        printf("TAG: ");
+        ber_tlv_tag_fwrite(tlv_tag, stdout);
+        if(BER_TLV_CONSTRUCTED(data)) {
+            printf(" (constructed)");
+        } else if(dsize >= 2 && data[0] == 0 && data[1] == 0) {
+            printf(" (end-of-content)");
+        } else {
+            printf(" (primitive)");
+        }
+        if(BER_TAG_CLASS(tlv_tag) == ASN_TAG_CLASS_UNIVERSAL) {
+            const char *str;
+            ber_tlv_tag_t tvalue = BER_TAG_VALUE(tlv_tag);
+            str = ASN_UNIVERSAL_TAG2STR(tvalue);
+            if(str) printf(" \"%s\"", str);
+        }
+        printf("\n");
+    }
+
+    if(dsize > (size_t)len) {
+        len = ber_fetch_length(BER_TLV_CONSTRUCTED(data), data + len,
+                               dsize - len, &tlv_len);
+        switch(len) {
+        case -1:
+            fprintf(stderr, "LEN: Fatal error decoding length\n");
+            return -1;
+        case 0:
+            fprintf(stderr, "LEN: More data expected\n");
+            return -1;
+        default:
+            if(tlv_len == (ber_tlv_len_t)-1)
+                printf("LEN: Indefinite length encoding\n");
+            else
+                printf("LEN: %ld bytes\n", (long)tlv_len);
+        }
+    }
+
+    return 0;
+}
+
+/*
+ * Dummy functions.
+ */
+asn_dec_rval_t
+ber_check_tags(const asn_codec_ctx_t *opt_codec_ctx,
+               const asn_TYPE_descriptor_t *td, asn_struct_ctx_t *opt_ctx,
+               const void *ptr, size_t size, int tag_mode, int last_tag_form,
+               ber_tlv_len_t *last_length, int *opt_tlv_form) {
+    asn_dec_rval_t rv = {0, 0};
+    (void)opt_codec_ctx;
+    (void)td;
+    (void)opt_ctx;
+    (void)ptr;
+    (void)size;
+    (void)tag_mode;
+    (void)last_tag_form;
+    (void)last_length;
+    (void)opt_tlv_form;
+    return rv;
+}
+
+ssize_t
+der_write_tags(const asn_TYPE_descriptor_t *td, size_t slen, int tag_mode,
+               int last_tag_form, ber_tlv_tag_t tag,
+               asn_app_consume_bytes_f *cb, void *app_key) {
+    (void)td;
+    (void)slen;
+    (void)tag_mode;
+    (void)last_tag_form;
+    (void)tag;
+    (void)cb;
+    (void)app_key;
+    return -1;
+}
+
+asn_dec_rval_t
+xer_decode_general(const asn_codec_ctx_t *opt_codec_ctx, asn_struct_ctx_t *ctx,
+                   void *struct_key, const char *xml_tag, const void *buf_ptr,
+                   size_t size,
+                   int (*otd)(void *struct_key, const void *chunk_buf,
+                              size_t chunk_size),
+                   ssize_t (*br)(void *struct_key, const void *chunk_buf,
+                                 size_t chunk_size, int have_more)) {
+    asn_dec_rval_t rv = {0, 0};
+    (void)opt_codec_ctx;
+    (void)ctx;
+    (void)struct_key;
+    (void)xml_tag;
+    (void)buf_ptr;
+    (void)size;
+    (void)otd;
+    (void)br;
+    return rv;
+}
+
+size_t
+xer_whitespace_span(const void *chunk_buf, size_t chunk_size) {
+    (void)chunk_buf;
+    (void)chunk_size;
+    return 0;
+}
+
+int
+OCTET_STRING_compare(const asn_TYPE_descriptor_t *td, const void *a,
+                     const void *b) {
+    (void)td;
+    (void)a;
+    (void)b;
+    return 0;
+}
+
+intmax_t
+asn_random_between(intmax_t a, intmax_t b) {
+    (void)b;
+    return a;
+};
+