/* $OpenBSD: b_dump.c,v 1.22 2021/07/11 20:18:07 beck Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * 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 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* * Stolen from tjh's ssl/ssl_trc.c stuff. */ #include #include #include #define TRUNCATE #define DUMP_WIDTH 16 #define DUMP_WIDTH_LESS_INDENT(i) (DUMP_WIDTH - ((i - (i > 6 ? 6 : i) + 3) / 4)) int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u), void *u, const char *s, int len) { return BIO_dump_indent_cb(cb, u, s, len, 0); } int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u), void *u, const char *s, int len, int indent) { int ret = 0; char buf[288 + 1], tmp[20], str[128 + 1]; int i, j, rows, trc, written; unsigned char ch; int dump_width; trc = 0; #ifdef TRUNCATE for (; (len > 0) && ((s[len - 1] == ' ') || (s[len - 1] == '\0')); len--) trc++; #endif if (indent < 0) indent = 0; if (indent) { if (indent > 128) indent = 128; memset(str, ' ', indent); } str[indent] = '\0'; dump_width = DUMP_WIDTH_LESS_INDENT(indent); rows = (len / dump_width); if ((rows * dump_width) < len) rows++; for (i = 0; i < rows; i++) { strlcpy(buf, str, sizeof buf); snprintf(tmp, sizeof tmp, "%04x - ", i*dump_width); strlcat(buf, tmp, sizeof buf); for (j = 0; j < dump_width; j++) { if (((i*dump_width) + j) >= len) { strlcat(buf, " ", sizeof buf); } else { ch = ((unsigned char)*(s + i*dump_width + j)) & 0xff; snprintf(tmp, sizeof tmp, "%02x%c", ch, j == 7 ? '-' : ' '); strlcat(buf, tmp, sizeof buf); } } strlcat(buf, " ", sizeof buf); for (j = 0; j < dump_width; j++) { if (((i*dump_width) + j) >= len) break; ch = ((unsigned char)*(s + i * dump_width + j)) & 0xff; snprintf(tmp, sizeof tmp, "%c", ((ch >= ' ') && (ch <= '~')) ? ch : '.'); strlcat(buf, tmp, sizeof buf); } strlcat(buf, "\n", sizeof buf); /* if this is the last call then update the ddt_dump thing so * that we will move the selection point in the debug window */ if ((written = cb((void *)buf, strlen(buf), u)) < 0) return -1; ret += written; } #ifdef TRUNCATE if (trc > 0) { snprintf(buf, sizeof buf, "%s%04x - \n", str, len + trc); if ((written = cb((void *)buf, strlen(buf), u)) < 0) return -1; ret += written; } #endif return (ret); } static int write_fp(const void *data, size_t len, void *fp) { return fwrite(data, 1, len, fp); } int BIO_dump_fp(FILE *fp, const char *s, int len) { return BIO_dump_cb(write_fp, fp, s, len); } int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent) { return BIO_dump_indent_cb(write_fp, fp, s, len, indent); } static int write_bio(const void *data, size_t len, void *bp) { return BIO_write((BIO *)bp, (const char *)data, len); } int BIO_dump(BIO *bp, const char *s, int len) { return BIO_dump_cb(write_bio, bp, s, len); } int BIO_dump_indent(BIO *bp, const char *s, int len, int indent) { return BIO_dump_indent_cb(write_bio, bp, s, len, indent); }