807989df56
Some of these functions take char*, which is seldom right, they should have been unsigned char*, because the content isn't expected to be text. Even better is to simply take void* as data type, which also happens to be transparent for any type these functions are called with, be it char* or unsigned char*. This shouldn't break anything. While we're at it, constify the input data parameters. Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/7890)
150 lines
4 KiB
C
150 lines
4 KiB
C
/*
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* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* Stolen from tjh's ssl/ssl_trc.c stuff.
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*/
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#include <stdio.h>
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#include "bio_lcl.h"
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#define DUMP_WIDTH 16
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#define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH - ((i - (i > 6 ? 6 : i) + 3) / 4))
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#define SPACE(buf, pos, n) (sizeof(buf) - (pos) > (n))
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int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
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void *u, const void *s, int len)
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{
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return BIO_dump_indent_cb(cb, u, s, len, 0);
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}
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int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
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void *u, const void *v, int len, int indent)
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{
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const unsigned char *s = v;
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int ret = 0;
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char buf[288 + 1];
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int i, j, rows, n;
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unsigned char ch;
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int dump_width;
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if (indent < 0)
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indent = 0;
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else if (indent > 128)
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indent = 128;
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dump_width = DUMP_WIDTH_LESS_INDENT(indent);
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rows = len / dump_width;
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if ((rows * dump_width) < len)
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rows++;
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for (i = 0; i < rows; i++) {
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n = BIO_snprintf(buf, sizeof(buf), "%*s%04x - ", indent, "",
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i * dump_width);
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for (j = 0; j < dump_width; j++) {
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if (SPACE(buf, n, 3)) {
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if (((i * dump_width) + j) >= len) {
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strcpy(buf + n, " ");
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} else {
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ch = *(s + i * dump_width + j) & 0xff;
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BIO_snprintf(buf + n, 4, "%02x%c", ch,
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j == 7 ? '-' : ' ');
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}
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n += 3;
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}
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}
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if (SPACE(buf, n, 2)) {
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strcpy(buf + n, " ");
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n += 2;
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}
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for (j = 0; j < dump_width; j++) {
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if (((i * dump_width) + j) >= len)
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break;
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if (SPACE(buf, n, 1)) {
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ch = *(s + i * dump_width + j) & 0xff;
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#ifndef CHARSET_EBCDIC
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buf[n++] = ((ch >= ' ') && (ch <= '~')) ? ch : '.';
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#else
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buf[n++] = ((ch >= os_toascii[' ']) && (ch <= os_toascii['~']))
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? os_toebcdic[ch]
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: '.';
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#endif
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buf[n] = '\0';
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}
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}
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if (SPACE(buf, n, 1)) {
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buf[n++] = '\n';
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buf[n] = '\0';
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}
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/*
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* if this is the last call then update the ddt_dump thing so that we
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* will move the selection point in the debug window
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*/
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ret += cb((void *)buf, n, u);
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}
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return ret;
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}
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#ifndef OPENSSL_NO_STDIO
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static int write_fp(const void *data, size_t len, void *fp)
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{
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return UP_fwrite(data, len, 1, fp);
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}
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int BIO_dump_fp(FILE *fp, const void *s, int len)
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{
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return BIO_dump_cb(write_fp, fp, s, len);
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}
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int BIO_dump_indent_fp(FILE *fp, const void *s, int len, int indent)
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{
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return BIO_dump_indent_cb(write_fp, fp, s, len, indent);
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}
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#endif
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static int write_bio(const void *data, size_t len, void *bp)
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{
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return BIO_write((BIO *)bp, (const char *)data, len);
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}
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int BIO_dump(BIO *bp, const void *s, int len)
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{
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return BIO_dump_cb(write_bio, bp, s, len);
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}
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int BIO_dump_indent(BIO *bp, const void *s, int len, int indent)
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{
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return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
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}
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int BIO_hex_string(BIO *out, int indent, int width, const void *data,
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int datalen)
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{
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const unsigned char *d = data;
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int i, j = 0;
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if (datalen < 1)
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return 1;
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for (i = 0; i < datalen - 1; i++) {
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if (i && !j)
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BIO_printf(out, "%*s", indent, "");
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BIO_printf(out, "%02X:", d[i]);
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j = (j + 1) % width;
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if (!j)
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BIO_printf(out, "\n");
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}
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if (i && !j)
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BIO_printf(out, "%*s", indent, "");
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BIO_printf(out, "%02X", d[datalen - 1]);
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return 1;
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}
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