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/*
* Functions to trace SSL protocol behavior in DEBUG builds.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <stdarg.h>
#include "cert.h"
#include "pk11func.h"
#include "ssl.h"
#include "sslimpl.h"
#include "sslproto.h"
#include "prprf.h"
#if defined(DEBUG) || defined(TRACE)
static const char *hex = "0123456789abcdef";
static const char printable[257] = {
"................" /* 0x */
"................" /* 1x */
" !\"#$%&'()*+,-./" /* 2x */
"0123456789:;<=>?" /* 3x */
"@ABCDEFGHIJKLMNO" /* 4x */
"PQRSTUVWXYZ[\\]^_" /* 5x */
"`abcdefghijklmno" /* 6x */
"pqrstuvwxyz{|}~." /* 7x */
"................" /* 8x */
"................" /* 9x */
"................" /* ax */
"................" /* bx */
"................" /* cx */
"................" /* dx */
"................" /* ex */
"................" /* fx */
};
void
ssl_PrintBuf(const sslSocket *ss, const char *msg, const void *vp, int len)
{
const unsigned char *cp = (const unsigned char *)vp;
char buf[80];
char *bp;
char *ap;
if (ss) {
SSL_TRACE(("%d: SSL[%d]: %s [Len: %d]", SSL_GETPID(), ss->fd,
msg, len));
} else {
SSL_TRACE(("%d: SSL: %s [Len: %d]", SSL_GETPID(), msg, len));
}
if (!cp) {
SSL_TRACE((" <NULL>"));
return;
}
memset(buf, ' ', sizeof buf);
bp = buf;
ap = buf + 50;
while (--len >= 0) {
unsigned char ch = *cp++;
*bp++ = hex[(ch >> 4) & 0xf];
*bp++ = hex[ch & 0xf];
*bp++ = ' ';
*ap++ = printable[ch];
if (ap - buf >= 66) {
*ap = 0;
SSL_TRACE((" %s", buf));
memset(buf, ' ', sizeof buf);
bp = buf;
ap = buf + 50;
}
}
if (bp > buf) {
*ap = 0;
SSL_TRACE((" %s", buf));
}
}
void
ssl_Trace(const char *format, ...)
{
char buf[2000];
va_list args;
if (ssl_trace_iob) {
va_start(args, format);
PR_vsnprintf(buf, sizeof(buf), format, args);
va_end(args);
fputs(buf, ssl_trace_iob);
fputs("\n", ssl_trace_iob);
}
}
void
ssl_PrintKey(const sslSocket *ss, const char *msg, PK11SymKey *key)
{
SECStatus rv;
SECItem *rawkey;
rv = PK11_ExtractKeyValue(key);
if (rv != SECSuccess) {
ssl_Trace("Could not extract key for %s", msg);
return;
}
rawkey = PK11_GetKeyData(key);
if (!rawkey) {
ssl_Trace("Could not extract key for %s", msg);
return;
}
ssl_PrintBuf(ss, msg, rawkey->data, rawkey->len);
}
#endif