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/* GNU ddrescue - Data recovery tool
Copyright (C) 2013-2025 Antonio Diaz Diaz.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _FILE_OFFSET_BITS 64
#include <algorithm>
#include <cerrno>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include <vector>
#include <sys/stat.h>
#include "block.h"
#include "loggers.h"
namespace {
const char * format_time_dhms( const long long t )
{
static char buf[64];
const int s = t % 60;
const int m = ( t / 60 ) % 60;
const int h = ( t / 3600 ) % 24;
const long long d = t / 86400;
if( d ) snprintf( buf, sizeof buf, "%lldd:%02dh:%02dm:%02ds", d, h, m, s );
else if( h ) snprintf( buf, sizeof buf, "%dh:%02dm:%02ds", h, m, s );
else if( m ) snprintf( buf, sizeof buf, "%dm:%02ds", m, s );
else snprintf( buf, sizeof buf, "%ds", s );
return buf;
}
} // end namespace
Event_logger event_logger;
Rate_logger rate_logger;
Read_logger read_logger;
void Logger::set_filename( const char * const name )
{
if( !name || !*name ) return; // ignore name
if( std::strcmp( name, "-" ) == 0 )
{ show_error( "I won't write log data to standard output." );
std::exit( 1 ); }
struct stat st;
if( stat( name, &st ) == 0 && !S_ISREG( st.st_mode ) )
{ show_file_error( name, "Logfile exists and is not a regular file." );
std::exit( 1 ); }
filename_ = name;
}
bool Logger::close_file()
{
if( f && !error && !write_final_timestamp( f ) ) error = true;
if( f && std::fclose( f ) != 0 ) error = true; // close even on error
f = 0;
return !error;
}
bool Event_logger::open_file()
{
if( !filename_ ) return true;
if( !f )
{
struct stat st;
const bool file_exists = ( stat( filename_, &st ) == 0 );
f = std::fopen( filename_, "a" );
error = !f || ( file_exists && std::fputc( '\n', f ) == EOF ) ||
!write_file_header( f, "Events Logfile" ) ||
std::fputs( "# Time Rescued Event\n", f ) == EOF;
}
return !error;
}
bool Event_logger::echo_msg( const char * const msg )
{
if( verbosity >= 0 ) std::printf( "\n %s", msg );
if( f && !error && std::fprintf( f, " %s\n", msg ) < 0 )
error = true;
return !error;
}
bool Event_logger::print_msg( const long long time,
const char * const percent_rescued,
const char * const msg )
{
if( f && !error &&
std::fprintf( f, "%14s %s %s\n", format_time_dhms( time ),
percent_rescued, msg ) < 0 )
error = true;
return !error;
}
bool Event_logger::print_eor( const long long time,
const char * const percent_rescued,
const long long current_pos,
const char * const current_status_name )
{
if( f && !error &&
std::fprintf( f, "%14s %s End of run (0x%08llX %s)\n",
format_time_dhms( time ), percent_rescued,
current_pos, current_status_name ) < 0 )
error = true;
return !error;
}
bool Rate_logger::open_file()
{
if( !filename_ ) return true;
if( !f )
{
last_time = -1;
f = std::fopen( filename_, "w" );
error = !f || !write_file_header( f, "Rates Logfile" ) ||
std::fputs( "#Time Ipos Current_rate Average_rate Bad_areas Bad_size\n", f ) == EOF;
}
return !error;
}
bool Rate_logger::print_line( const long long time, const long long ipos,
const long long a_rate, const long long c_rate,
const unsigned long bad_areas,
const long long bad_size )
{
if( f && !error && time > last_time )
{
last_time = time;
if( std::fprintf( f, "%2lld 0x%08llX %8lld %8lld %7lu %8lld\n",
time, ipos, c_rate, a_rate, bad_areas, bad_size ) < 0 )
error = true;
}
return !error;
}
bool Read_logger::open_file()
{
if( !filename_ ) return true;
if( !f )
{
prev_is_msg = true;
f = std::fopen( filename_, "w" );
error = !f || !write_file_header( f, "Reads Logfile" ) ||
std::fputs( "# Ipos Size Copied_size Error_size Errno\n",
f ) == EOF;
}
return !error;
}
bool Read_logger::print_line( const long long ipos, const long long size,
const int copied_size, const int error_size,
const int errcode )
{
if( f && !error )
{
if( errcode <= 0 || errcode == EIO )
{ if( std::fprintf( f, "0x%08llX %lld %d %d\n", ipos,
size, copied_size, error_size ) < 0 ) error = true; }
else
{ if( std::fprintf( f, "0x%08llX %lld %d %d %d\n", ipos,
size, copied_size, error_size, errcode ) < 0 ) error = true; }
}
prev_is_msg = false;
return !error;
}
bool Read_logger::print_msg( const long long time, const char * const msg )
{
if( f && !error &&
std::fprintf( f, "%s# %s %s\n", prev_is_msg ? "" : "\n",
format_time_dhms( time ), msg ) < 0 )
error = true;
prev_is_msg = true;
return !error;
}
bool Read_logger::print_time( const long long time )
{
if( f && !error && time > 0 &&
std::fprintf( f, "# %s\n", format_time_dhms( time ) ) < 0 )
error = true;
return !error;
}
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