lbbs/src/log.c

/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
 * log
 *   - logger
 *
 * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "common.h"
#include "io.h"
#include "log.h"
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/types.h>

enum _log_constant_t
{
        STR_LOG_TIME_MAX_LEN = 50,
};

static FILE *fp_common_log;
static FILE *fp_error_log;

int log_begin(const char *common_log_file, const char *error_log_file)
{
        fp_common_log = fopen(common_log_file, "a");
        if (fp_common_log == NULL)
        {
                perror("log_begin failed\n");
                return -1;
        }

        fp_error_log = fopen(error_log_file, "a");
        if (fp_error_log == NULL)
        {
                perror("log_begin failed\n");
                return -2;
        }

        return 0;
}

void log_end()
{
        fclose(fp_common_log);
        fclose(fp_error_log);
}

inline static void log_head(char *buf, size_t len, int log_level, const char *app_file, int app_line)
{
        time_t t;
        struct tm gm_tm;
        char s_time[STR_LOG_TIME_MAX_LEN + 1];

        time(&t);
        gmtime_r(&t, &gm_tm);
        strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm);

        if (log_level == LOG_LEVEL_COMMON)
        {
                snprintf(buf, len, "[%s] [%d] [INFO] ", s_time, getpid());
        }
        else // if (log_level == LOG_LEVEL_ERROR)
        {
                snprintf(buf, len, "[%s] [%d] [ERROR] [%s:%d] ", s_time, getpid(), app_file, app_line);
        }
}

int log_printf(enum log_level_t log_level, const char *app_file, int app_line, const char *format, ...)
{
        va_list args;
        int retval;
        char buf[LINE_BUFFER_LEN];
        FILE *fp_log;

        fp_log = (log_level == LOG_LEVEL_ERROR ? fp_error_log : fp_common_log);

        log_head(buf, sizeof(buf), log_level, app_file, app_line);
        strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));

        va_start(args, format);
        retval = vfprintf(fp_log, buf, args);
        va_end(args);

        fflush(fp_log);

        return retval;
}

int log_common_redir(int fd)
{
        return dup2(fd, fileno(fp_common_log));
}

int log_error_redir(int fd)
{
        return dup2(fd, fileno(fp_error_log));
}
1	sysadm	1.27	/* SPDX-License-Identifier: GPL-3.0-or-later */
2			/*
3			* log
4			* - logger
5			*
6	sysadm	1.28	* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7	sysadm	1.27	*/
8	sysadm	1.1
9	sysadm	1.31	#ifdef HAVE_CONFIG_H
10			#include "config.h"
11			#endif
12
13	sysadm	1.26	#include "common.h"
14			#include "io.h"
15	sysadm	1.21	#include "log.h"
16	sysadm	1.6	#include <stdarg.h>
17	sysadm	1.24	#include <string.h>
18	sysadm	1.6	#include <time.h>
19	sysadm	1.10	#include <unistd.h>
20	sysadm	1.24	#include <sys/types.h>
21	sysadm	1.19
22	sysadm	1.30	enum _log_constant_t
23			{
24			STR_LOG_TIME_MAX_LEN = 50,
25			};
26	sysadm	1.22
27			static FILE *fp_common_log;
28			static FILE *fp_error_log;
29	sysadm	1.1
30	sysadm	1.29	int log_begin(const char common_log_file, const char error_log_file)
31	sysadm	1.1	{
32	sysadm	1.20	fp_common_log = fopen(common_log_file, "a");
33			if (fp_common_log == NULL)
34	sysadm	1.11	{
35			perror("log_begin failed\n");
36			return -1;
37			}
38	sysadm	1.1
39	sysadm	1.20	fp_error_log = fopen(error_log_file, "a");
40			if (fp_error_log == NULL)
41	sysadm	1.11	{
42			perror("log_begin failed\n");
43			return -2;
44			}
45	sysadm	1.1
46	sysadm	1.11	return 0;
47	sysadm	1.1	}
48
49	sysadm	1.13	void log_end()
50	sysadm	1.1	{
51	sysadm	1.20	fclose(fp_common_log);
52			fclose(fp_error_log);
53	sysadm	1.1	}
54
55	sysadm	1.22	inline static void log_head(char buf, size_t len, int log_level, const char app_file, int app_line)
56	sysadm	1.2	{
57	sysadm	1.11	time_t t;
58	sysadm	1.18	struct tm gm_tm;
59	sysadm	1.22	char s_time[STR_LOG_TIME_MAX_LEN + 1];
60	sysadm	1.9
61	sysadm	1.18	time(&t);
62			gmtime_r(&t, &gm_tm);
63			strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm);
64	sysadm	1.9
65	sysadm	1.22	if (log_level == LOG_LEVEL_COMMON)
66			{
67			snprintf(buf, len, "[%s] [%d] [INFO] ", s_time, getpid());
68			}
69			else // if (log_level == LOG_LEVEL_ERROR)
70			{
71	sysadm	1.23	snprintf(buf, len, "[%s] [%d] [ERROR] [%s:%d] ", s_time, getpid(), app_file, app_line);
72	sysadm	1.22	}
73	sysadm	1.2	}
74
75	sysadm	1.29	int log_printf(enum log_level_t log_level, const char app_file, int app_line, const char format, ...)
76	sysadm	1.1	{
77	sysadm	1.11	va_list args;
78			int retval;
79	sysadm	1.21	char buf[LINE_BUFFER_LEN];
80	sysadm	1.22	FILE *fp_log;
81	sysadm	1.2
82	sysadm	1.22	fp_log = (log_level == LOG_LEVEL_ERROR ? fp_error_log : fp_common_log);
83	sysadm	1.1
84	sysadm	1.22	log_head(buf, sizeof(buf), log_level, app_file, app_line);
85	sysadm	1.14	strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));
86	sysadm	1.3
87	sysadm	1.11	va_start(args, format);
88	sysadm	1.22	retval = vfprintf(fp_log, buf, args);
89	sysadm	1.11	va_end(args);
90	sysadm	1.2
91	sysadm	1.22	fflush(fp_log);
92	sysadm	1.1
93	sysadm	1.11	return retval;
94	sysadm	1.1	}
95	sysadm	1.5
96	sysadm	1.20	int log_common_redir(int fd)
97	sysadm	1.5	{
98	sysadm	1.32	return dup2(fd, fileno(fp_common_log));
99	sysadm	1.5	}
100
101	sysadm	1.20	int log_error_redir(int fd)
102	sysadm	1.5	{
103	sysadm	1.32	return dup2(fd, fileno(fp_error_log));
104	sysadm	1.5	}
webmaster@leafok.com	ViewVC Help
Powered by ViewVC 1.3.0-beta1