[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * Stolen from tjh's ssl/ssl_trc.c stuff.
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| 12 | */
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| 13 |
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| 14 | #include <stdio.h>
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| 15 | #include "bio_lcl.h"
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| 16 |
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| 17 | #define TRUNCATE
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| 18 | #define DUMP_WIDTH 16
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| 19 | #define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH-((i-(i>6?6:i)+3)/4))
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| 20 |
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| 21 | int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
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| 22 | void *u, const char *s, int len)
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| 23 | {
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| 24 | return BIO_dump_indent_cb(cb, u, s, len, 0);
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| 25 | }
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| 26 |
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| 27 | int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
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| 28 | void *u, const char *s, int len, int indent)
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| 29 | {
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| 30 | int ret = 0;
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| 31 | char buf[288 + 1], tmp[20], str[128 + 1];
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| 32 | int i, j, rows, trc;
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| 33 | unsigned char ch;
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| 34 | int dump_width;
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| 35 |
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| 36 | trc = 0;
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| 37 |
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| 38 | #ifdef TRUNCATE
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| 39 | for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--)
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| 40 | trc++;
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| 41 | #endif
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| 42 |
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| 43 | if (indent < 0)
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| 44 | indent = 0;
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| 45 | if (indent) {
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| 46 | if (indent > 128)
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| 47 | indent = 128;
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| 48 | memset(str, ' ', indent);
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| 49 | }
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| 50 | str[indent] = '\0';
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| 51 |
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| 52 | dump_width = DUMP_WIDTH_LESS_INDENT(indent);
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| 53 | rows = (len / dump_width);
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| 54 | if ((rows * dump_width) < len)
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| 55 | rows++;
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| 56 | for (i = 0; i < rows; i++) {
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| 57 | OPENSSL_strlcpy(buf, str, sizeof buf);
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| 58 | BIO_snprintf(tmp, sizeof tmp, "%04x - ", i * dump_width);
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| 59 | OPENSSL_strlcat(buf, tmp, sizeof buf);
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| 60 | for (j = 0; j < dump_width; j++) {
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| 61 | if (((i * dump_width) + j) >= len) {
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| 62 | OPENSSL_strlcat(buf, " ", sizeof buf);
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| 63 | } else {
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| 64 | ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
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| 65 | BIO_snprintf(tmp, sizeof tmp, "%02x%c", ch,
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| 66 | j == 7 ? '-' : ' ');
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| 67 | OPENSSL_strlcat(buf, tmp, sizeof buf);
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| 68 | }
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| 69 | }
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| 70 | OPENSSL_strlcat(buf, " ", sizeof buf);
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| 71 | for (j = 0; j < dump_width; j++) {
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| 72 | if (((i * dump_width) + j) >= len)
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| 73 | break;
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| 74 | ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff;
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| 75 | #ifndef CHARSET_EBCDIC
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| 76 | BIO_snprintf(tmp, sizeof tmp, "%c",
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| 77 | ((ch >= ' ') && (ch <= '~')) ? ch : '.');
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| 78 | #else
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| 79 | BIO_snprintf(tmp, sizeof tmp, "%c",
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| 80 | ((ch >= os_toascii[' ']) && (ch <= os_toascii['~']))
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| 81 | ? os_toebcdic[ch]
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| 82 | : '.');
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| 83 | #endif
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| 84 | OPENSSL_strlcat(buf, tmp, sizeof buf);
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| 85 | }
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| 86 | OPENSSL_strlcat(buf, "\n", sizeof buf);
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| 87 | /*
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| 88 | * if this is the last call then update the ddt_dump thing so that we
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| 89 | * will move the selection point in the debug window
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| 90 | */
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| 91 | ret += cb((void *)buf, strlen(buf), u);
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| 92 | }
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| 93 | #ifdef TRUNCATE
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| 94 | if (trc > 0) {
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| 95 | BIO_snprintf(buf, sizeof buf, "%s%04x - <SPACES/NULS>\n", str,
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| 96 | len + trc);
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| 97 | ret += cb((void *)buf, strlen(buf), u);
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| 98 | }
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| 99 | #endif
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| 100 | return (ret);
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| 101 | }
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| 102 |
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| 103 | #ifndef OPENSSL_NO_STDIO
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| 104 | static int write_fp(const void *data, size_t len, void *fp)
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| 105 | {
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| 106 | return UP_fwrite(data, len, 1, fp);
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| 107 | }
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| 108 |
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| 109 | int BIO_dump_fp(FILE *fp, const char *s, int len)
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| 110 | {
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| 111 | return BIO_dump_cb(write_fp, fp, s, len);
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| 112 | }
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| 113 |
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| 114 | int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent)
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| 115 | {
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| 116 | return BIO_dump_indent_cb(write_fp, fp, s, len, indent);
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| 117 | }
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| 118 | #endif
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| 119 |
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| 120 | static int write_bio(const void *data, size_t len, void *bp)
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| 121 | {
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| 122 | return BIO_write((BIO *)bp, (const char *)data, len);
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| 123 | }
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| 124 |
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| 125 | int BIO_dump(BIO *bp, const char *s, int len)
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| 126 | {
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| 127 | return BIO_dump_cb(write_bio, bp, s, len);
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| 128 | }
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| 129 |
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| 130 | int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
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| 131 | {
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| 132 | return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
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| 133 | }
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| 134 |
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| 135 | int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
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| 136 | int datalen)
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| 137 | {
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| 138 | int i, j = 0;
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| 139 |
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| 140 | if (datalen < 1)
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| 141 | return 1;
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| 142 |
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| 143 | for (i = 0; i < datalen - 1; i++) {
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| 144 | if (i && !j)
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| 145 | BIO_printf(out, "%*s", indent, "");
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| 146 |
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| 147 | BIO_printf(out, "%02X:", data[i]);
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| 148 |
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| 149 | j = (j + 1) % width;
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| 150 | if (!j)
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| 151 | BIO_printf(out, "\n");
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| 152 | }
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| 153 |
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| 154 | if (i && !j)
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| 155 | BIO_printf(out, "%*s", indent, "");
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| 156 | BIO_printf(out, "%02X", data[datalen - 1]);
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| 157 | return 1;
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| 158 | }
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