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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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log.c - description |
/* |
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------------------- |
* log |
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begin : Mon Oct 18 2004 |
* - logger |
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copyright : (C) 2004 by leaf |
* |
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email : leaflet@leafok.com |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
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***************************************************************************/ |
*/ |
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/*************************************************************************** |
#ifdef HAVE_CONFIG_H |
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* * |
#include "config.h" |
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* This program is free software; you can redistribute it and/or modify * |
#endif |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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***************************************************************************/ |
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#include "common.h" |
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#include "io.h" |
#include "io.h" |
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#include <stdio.h> |
#include "log.h" |
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#include <stdarg.h> |
#include <stdarg.h> |
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#include <string.h> |
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#include <time.h> |
#include <time.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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FILE *fp_log_std; |
enum _log_constant_t |
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FILE *fp_log_err; |
{ |
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STR_LOG_TIME_MAX_LEN = 50, |
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}; |
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static char path_common_log[FILE_PATH_LEN]; |
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static char path_error_log[FILE_PATH_LEN]; |
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static FILE *fp_common_log; |
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static FILE *fp_error_log; |
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static int redir_common_log = 0; |
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static int redir_error_log = 0; |
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int |
int log_begin(const char *common_log_file, const char *error_log_file) |
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log_begin (char *file_log_std, char *file_log_err) |
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{ |
{ |
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fp_log_std = fopen (file_log_std, "a"); |
strncpy(path_common_log, common_log_file, sizeof(path_common_log) - 1); |
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if (fp_log_std == NULL) |
path_common_log[sizeof(path_common_log) - 1] = '\0'; |
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{ |
strncpy(path_error_log, error_log_file, sizeof(path_error_log) - 1); |
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perror ("log_begin failed\n"); |
path_error_log[sizeof(path_error_log) - 1] = '\0'; |
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return -1; |
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} |
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fp_log_err = fopen (file_log_err, "a"); |
fp_common_log = fopen(path_common_log, "a"); |
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if (fp_log_err == NULL) |
if (fp_common_log == NULL) |
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{ |
{ |
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perror ("log_begin failed\n"); |
perror("log_begin(common_log) failed\n"); |
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return -2; |
return -1; |
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} |
} |
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return 0; |
fp_error_log = fopen(path_error_log, "a"); |
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} |
if (fp_error_log == NULL) |
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{ |
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perror("log_begin(error_log) failed\n"); |
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return -2; |
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} |
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int |
redir_common_log = 0; |
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log_end () |
redir_error_log = 0; |
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{ |
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fclose (fp_log_std); |
return 0; |
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fclose (fp_log_err); |
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} |
} |
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int |
void log_end() |
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log_head (char *buf) |
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{ |
{ |
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time_t t; |
fclose(fp_common_log); |
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char s_time[256]; |
fclose(fp_error_log); |
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t = time(0); |
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strftime(s_time,256,"%Y-%m-%d %H:%M:%S", localtime (&t)); |
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sprintf(buf,"[%s] [%d] ", s_time, getpid()); |
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return 0; |
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} |
} |
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int |
inline static void log_head(char *buf, size_t len, int log_level, const char *app_file, int app_line) |
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log_std(const char * format, ...) |
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{ |
{ |
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va_list args; |
time_t t; |
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int retval; |
struct tm gm_tm; |
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char buf[1024]; |
char s_time[STR_LOG_TIME_MAX_LEN + 1]; |
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log_head(buf); |
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strcat(buf, format); |
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va_start (args, format); |
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retval = vfprintf (fp_log_std, format, args); |
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va_end (args); |
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fflush(fp_log_std); |
time(&t); |
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gmtime_r(&t, &gm_tm); |
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strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm); |
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return retval; |
if (log_level == LOG_LEVEL_COMMON) |
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{ |
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snprintf(buf, len, "[%s] [%d] [INFO] ", s_time, getpid()); |
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} |
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else // if (log_level == LOG_LEVEL_ERROR) |
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{ |
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snprintf(buf, len, "[%s] [%d] [ERROR] [%s:%d] ", s_time, getpid(), app_file, app_line); |
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} |
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} |
} |
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int |
int log_printf(enum log_level_t log_level, const char *app_file, int app_line, const char *format, ...) |
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log_error (const char * format, ...) |
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{ |
{ |
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va_list args; |
va_list args; |
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int retval; |
int retval; |
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char buf[1024]; |
char buf[LINE_BUFFER_LEN]; |
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FILE *fp_log; |
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log_head(buf); |
fp_log = (log_level == LOG_LEVEL_ERROR ? fp_error_log : fp_common_log); |
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strcat(buf, format); |
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va_start (args, format); |
log_head(buf, sizeof(buf), log_level, app_file, app_line); |
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retval = vfprintf (fp_log_err, format, args); |
strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf))); |
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va_end (args); |
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fflush(fp_log_err); |
va_start(args, format); |
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retval = vfprintf(fp_log, buf, args); |
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va_end(args); |
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return retval; |
fflush(fp_log); |
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return retval; |
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} |
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int log_common_redir(int fd) |
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{ |
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redir_common_log = 1; |
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return dup2(fd, fileno(fp_common_log)); |
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} |
} |
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int |
int log_error_redir(int fd) |
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log_std_redirect(int fd) |
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{ |
{ |
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int ret; |
redir_error_log = 1; |
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close (fileno(fp_log_std)); |
return dup2(fd, fileno(fp_error_log)); |
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ret = dup2(fd, fileno(fp_log_std)); |
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return ret; |
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} |
} |
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int |
int log_restart(void) |
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log_err_redirect(int fd) |
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{ |
{ |
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int ret; |
FILE *fp; |
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close (fileno(fp_log_err)); |
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ret = dup2(fd, fileno(fp_log_err)); |
if (!redir_common_log) |
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return ret; |
{ |
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fp = fopen(path_common_log, "a"); |
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if (fp == NULL) |
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{ |
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log_error("fopen(%s) error\n", path_common_log); |
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return -1; |
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} |
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fclose(fp_common_log); |
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fp_common_log = fp; |
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} |
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if (!redir_error_log) |
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{ |
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fp = fopen(path_error_log, "a"); |
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if (fp == NULL) |
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{ |
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log_error("fopen(%s) error\n", path_error_log); |
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return -2; |
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} |
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fclose(fp_error_log); |
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fp_error_log = fp; |
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} |
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return 0; |
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} |
} |