lbbs/src/log.c

/***************************************************************************
                                                  log.c  -  description
                                                         -------------------
        Copyright            : (C) 2004-2025 by Leaflet
        Email                : leaflet@leafok.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

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

#define _POSIX_C_SOURCE 200809L
#include <string.h>

FILE *fp_common_log;
FILE *fp_error_log;

int log_begin(char *common_log_file, 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);
}

int log_head(char *buf, size_t len)
{
        time_t t;
        struct tm gm_tm;
        char s_time[256];

        time(&t);
        gmtime_r(&t, &gm_tm);
        strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm);
        snprintf(buf, len, "[%s] [%d] ", s_time, getpid());

        return 0;
}

int log_common(const char *format, ...)
{
        va_list args;
        int retval;
        char buf[LINE_BUFFER_LEN];

        log_head(buf, sizeof(buf));
        strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));

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

        fflush(fp_common_log);

        return retval;
}

int log_error(const char *format, ...)
{
        va_list args;
        int retval;
        char buf[LINE_BUFFER_LEN];

        log_head(buf, sizeof(buf));
        strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));

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

        fflush(fp_error_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	1.1	/***************************************************************************
2	sysadm	1.11	log.c - description
3			-------------------
4	sysadm	1.17	Copyright : (C) 2004-2025 by Leaflet
5			Email : leaflet@leafok.com
6	sysadm	1.1	***************************************************************************/
7
8			/***************************************************************************
9			* *
10			* This program is free software; you can redistribute it and/or modify *
11			* it under the terms of the GNU General Public License as published by *
12	sysadm	1.17	* the Free Software Foundation; either version 3 of the License, or *
13	sysadm	1.1	* (at your option) any later version. *
14			* *
15			***************************************************************************/
16
17	sysadm	1.21	#include "log.h"
18	sysadm	1.6	#include "io.h"
19	sysadm	1.21	#include "common.h"
20	sysadm	1.6	#include <stdio.h>
21			#include <stdarg.h>
22	sysadm	1.10	#include <sys/types.h>
23	sysadm	1.6	#include <time.h>
24	sysadm	1.10	#include <unistd.h>
25	sysadm	1.1
26	sysadm	1.19	#define _POSIX_C_SOURCE 200809L
27			#include <string.h>
28
29	sysadm	1.20	FILE *fp_common_log;
30			FILE *fp_error_log;
31	sysadm	1.1
32	sysadm	1.20	int log_begin(char common_log_file, char error_log_file)
33	sysadm	1.1	{
34	sysadm	1.20	fp_common_log = fopen(common_log_file, "a");
35			if (fp_common_log == NULL)
36	sysadm	1.11	{
37			perror("log_begin failed\n");
38			return -1;
39			}
40	sysadm	1.1
41	sysadm	1.20	fp_error_log = fopen(error_log_file, "a");
42			if (fp_error_log == NULL)
43	sysadm	1.11	{
44			perror("log_begin failed\n");
45			return -2;
46			}
47	sysadm	1.1
48	sysadm	1.11	return 0;
49	sysadm	1.1	}
50
51	sysadm	1.13	void log_end()
52	sysadm	1.1	{
53	sysadm	1.20	fclose(fp_common_log);
54			fclose(fp_error_log);
55	sysadm	1.1	}
56
57	sysadm	1.16	int log_head(char *buf, size_t len)
58	sysadm	1.2	{
59	sysadm	1.11	time_t t;
60	sysadm	1.18	struct tm gm_tm;
61	sysadm	1.11	char s_time[256];
62	sysadm	1.9
63	sysadm	1.18	time(&t);
64			gmtime_r(&t, &gm_tm);
65			strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm);
66	sysadm	1.15	snprintf(buf, len, "[%s] [%d] ", s_time, getpid());
67	sysadm	1.9
68	sysadm	1.11	return 0;
69	sysadm	1.2	}
70
71	sysadm	1.20	int log_common(const char *format, ...)
72	sysadm	1.1	{
73	sysadm	1.11	va_list args;
74			int retval;
75	sysadm	1.21	char buf[LINE_BUFFER_LEN];
76	sysadm	1.2
77	sysadm	1.15	log_head(buf, sizeof(buf));
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	1.20	retval = vfprintf(fp_common_log, buf, args);
82	sysadm	1.11	va_end(args);
83	sysadm	1.1
84	sysadm	1.20	fflush(fp_common_log);
85	sysadm	1.6
86	sysadm	1.11	return retval;
87	sysadm	1.1	}
88
89	sysadm	1.11	int log_error(const char *format, ...)
90	sysadm	1.1	{
91	sysadm	1.11	va_list args;
92			int retval;
93	sysadm	1.21	char buf[LINE_BUFFER_LEN];
94	sysadm	1.1
95	sysadm	1.15	log_head(buf, sizeof(buf));
96	sysadm	1.14	strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));
97	sysadm	1.3
98	sysadm	1.11	va_start(args, format);
99	sysadm	1.20	retval = vfprintf(fp_error_log, buf, args);
100	sysadm	1.11	va_end(args);
101	sysadm	1.2
102	sysadm	1.20	fflush(fp_error_log);
103	sysadm	1.1
104	sysadm	1.11	return retval;
105	sysadm	1.1	}
106	sysadm	1.5
107	sysadm	1.20	int log_common_redir(int fd)
108	sysadm	1.5	{
109	sysadm	1.11	int ret;
110	sysadm	1.20	close(fileno(fp_common_log));
111			ret = dup2(fd, fileno(fp_common_log));
112	sysadm	1.11	return ret;
113	sysadm	1.5	}
114
115	sysadm	1.20	int log_error_redir(int fd)
116	sysadm	1.5	{
117	sysadm	1.11	int ret;
118	sysadm	1.20	close(fileno(fp_error_log));
119			ret = dup2(fd, fileno(fp_error_log));
120	sysadm	1.11	return ret;
121	sysadm	1.5	}
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