b_dump.c
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上传日期:2020-08-09
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- /* crypto/bio/b_dump.c */
- /* 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 <stdio.h>
- #include "cryptlib.h"
- #include "bio_lcl.h"
- #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;
- unsigned char ch;
- int dump_width;
- trc=0;
- #ifdef TRUNCATE
- for(; (len > 0) && ((s[len-1] == ' ') || (s[len-1] == ' ')); len--)
- trc++;
- #endif
- if (indent < 0)
- indent = 0;
- if (indent)
- {
- if (indent > 128) indent=128;
- memset(str,' ',indent);
- }
- str[indent]=' ';
- dump_width=DUMP_WIDTH_LESS_INDENT(indent);
- rows=(len/dump_width);
- if ((rows*dump_width)<len)
- rows++;
- for(i=0;i<rows;i++)
- {
- buf[0]=' '; /* start with empty string */
- BUF_strlcpy(buf,str,sizeof buf);
- BIO_snprintf(tmp,sizeof tmp,"%04x - ",i*dump_width);
- BUF_strlcat(buf,tmp,sizeof buf);
- for(j=0;j<dump_width;j++)
- {
- if (((i*dump_width)+j)>=len)
- {
- BUF_strlcat(buf," ",sizeof buf);
- }
- else
- {
- ch=((unsigned char)*(s+i*dump_width+j)) & 0xff;
- BIO_snprintf(tmp,sizeof tmp,"%02x%c",ch,
- j==7?'-':' ');
- BUF_strlcat(buf,tmp,sizeof buf);
- }
- }
- 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;
- #ifndef CHARSET_EBCDIC
- BIO_snprintf(tmp,sizeof tmp,"%c",
- ((ch>=' ')&&(ch<='~'))?ch:'.');
- #else
- BIO_snprintf(tmp,sizeof tmp,"%c",
- ((ch>=os_toascii[' '])&&(ch<=os_toascii['~']))
- ? os_toebcdic[ch]
- : '.');
- #endif
- BUF_strlcat(buf,tmp,sizeof buf);
- }
- 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
- */
- ret+=cb((void *)buf,strlen(buf),u);
- }
- #ifdef TRUNCATE
- if (trc > 0)
- {
- BIO_snprintf(buf,sizeof buf,"%s%04x - <SPACES/NULS>n",str,
- len+trc);
- ret+=cb((void *)buf,strlen(buf),u);
- }
- #endif
- return(ret);
- }
- #ifndef OPENSSL_NO_FP_API
- static int write_fp(const void *data, size_t len, void *fp)
- {
- return UP_fwrite(data, len, 1, 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);
- }
- #endif
- 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);
- }