/*
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* Copyright (c) 2014, STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <ctype.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include "teec_trace.h"
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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/*
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* The length of the prefix is 37, for example it looks like this:
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* P = Prefix
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* M = Message
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* F = Function name
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* L = Line number
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* PPPP: MMMMM [FFFFFFFFFFFFFFF : LLLLL]
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*/
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#define MAX_PRINT_SIZE 256
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#ifdef TEEC_LOG_FILE
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static void log_to_file(const char *buffer)
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{
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FILE *log_file = fopen(TEEC_LOG_FILE, "a");
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if (log_file != NULL) {
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fprintf(log_file, "%s", buffer);
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fclose(log_file);
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log_file = NULL;
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}
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}
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#else
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#define log_to_file(buffer)
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#endif
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static const char * const trace_level_strings[] = {
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"", "ERR", "INF", "DBG", "FLW"
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};
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void _dprintf(const char *function, int line, int level, const char *prefix,
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const char *fmt, ...)
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{
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char msg[MAX_PRINT_SIZE];
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int n = 0;
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va_list ap;
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if (function) {
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int thread_id = syscall(SYS_gettid);
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n = snprintf(msg, sizeof(msg), "%s [%d] %s:%s:%d: ",
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trace_level_strings[level], thread_id, prefix,
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function, line);
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if (n < 0)
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return;
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}
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if ((size_t)n < sizeof(msg)) {
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va_start(ap, fmt);
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n = vsnprintf(msg + n, sizeof(msg) - n, fmt, ap);
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va_end(ap);
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if (n < 0)
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return;
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}
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fprintf(stdout, "%s", msg);
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log_to_file(msg);
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}
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#if (defined(DEBUGLEVEL_3) || defined(DEBUGLEVEL_true) || defined(DEBUGLEVEL_4))
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void dump_buffer(const char *bname, const uint8_t *buffer, size_t blen)
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{
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fprintf(stderr, "#### %s\n", bname);
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while (blen > 0) {
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size_t n = 0;
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for (n = 0; n < 16; n++) {
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if (n < blen)
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fprintf(stderr, "%02x ", (int)buffer[n]);
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else
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fprintf(stderr, " ");
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if (n == 7)
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fprintf(stderr, " ");
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}
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fprintf(stderr, " |");
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for (n = 0; n < 16; n++) {
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if (n < blen) {
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if (isprint(buffer[n]))
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fprintf(stderr, "%c", (int)buffer[n]);
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else
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fprintf(stderr, ".");
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}
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}
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fprintf(stderr, "|\n");
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blen -= MIN(blen, 16);
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buffer += 16;
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}
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}
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#else
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void dump_buffer(const char *bname, const uint8_t *buffer, size_t blen)
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{
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(void)bname;
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(void)buffer;
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(void)blen;
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}
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#endif
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