lbbs/src/log.c

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

#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>

#define 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)
{
        int ret;
        close(fileno(fp_common_log));
        ret = dup2(fd, fileno(fp_common_log));
        return ret;
}

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