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

FILE *fp_log_std;
FILE *fp_log_err;

int log_begin(char *file_log_std, char *file_log_err)
{
        fp_log_std = fopen(file_log_std, "a");
        if (fp_log_std == NULL)
        {
                perror("log_begin failed\n");
                return -1;
        }

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

        return 0;
}

void log_end()
{
        fclose(fp_log_std);
        fclose(fp_log_err);
}

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_std(const char *format, ...)
{
        va_list args;
        int retval;
        char buf[1024];

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

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

        fflush(fp_log_std);

        return retval;
}

int log_error(const char *format, ...)
{
        va_list args;
        int retval;
        char buf[1024];

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

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

        fflush(fp_log_err);

        return retval;
}

int log_std_redirect(int fd)
{
        int ret;
        close(fileno(fp_log_std));
        ret = dup2(fd, fileno(fp_log_std));
        return ret;
}

int log_err_redirect(int fd)
{
        int ret;
        close(fileno(fp_log_err));
        ret = dup2(fd, fileno(fp_log_err));
        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	1.6	#include "io.h"
18			#include <stdio.h>
19	sysadm	1.12	#include <string.h>
20	sysadm	1.6	#include <stdarg.h>
21	sysadm	1.10	#include <sys/types.h>
22	sysadm	1.6	#include <time.h>
23	sysadm	1.10	#include <unistd.h>
24	sysadm	1.1
25			FILE *fp_log_std;
26			FILE *fp_log_err;
27
28	sysadm	1.11	int log_begin(char file_log_std, char file_log_err)
29	sysadm	1.1	{
30	sysadm	1.11	fp_log_std = fopen(file_log_std, "a");
31			if (fp_log_std == NULL)
32			{
33			perror("log_begin failed\n");
34			return -1;
35			}
36	sysadm	1.1
37	sysadm	1.11	fp_log_err = fopen(file_log_err, "a");
38			if (fp_log_err == NULL)
39			{
40			perror("log_begin failed\n");
41			return -2;
42			}
43	sysadm	1.1
44	sysadm	1.11	return 0;
45	sysadm	1.1	}
46
47	sysadm	1.13	void log_end()
48	sysadm	1.1	{
49	sysadm	1.11	fclose(fp_log_std);
50			fclose(fp_log_err);
51	sysadm	1.1	}
52
53	sysadm	1.16	int log_head(char *buf, size_t len)
54	sysadm	1.2	{
55	sysadm	1.11	time_t t;
56	sysadm	1.18	struct tm gm_tm;
57	sysadm	1.11	char s_time[256];
58	sysadm	1.9
59	sysadm	1.18	time(&t);
60			gmtime_r(&t, &gm_tm);
61			strftime(s_time, sizeof(s_time), "%Y-%m-%d %H:%M:%S", &gm_tm);
62	sysadm	1.15	snprintf(buf, len, "[%s] [%d] ", s_time, getpid());
63	sysadm	1.9
64	sysadm	1.11	return 0;
65	sysadm	1.2	}
66
67	sysadm	1.11	int log_std(const char *format, ...)
68	sysadm	1.1	{
69	sysadm	1.11	va_list args;
70			int retval;
71			char buf[1024];
72	sysadm	1.2
73	sysadm	1.15	log_head(buf, sizeof(buf));
74	sysadm	1.14	strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));
75	sysadm	1.3
76	sysadm	1.11	va_start(args, format);
77			retval = vfprintf(fp_log_std, buf, args);
78			va_end(args);
79	sysadm	1.1
80	sysadm	1.11	fflush(fp_log_std);
81	sysadm	1.6
82	sysadm	1.11	return retval;
83	sysadm	1.1	}
84
85	sysadm	1.11	int log_error(const char *format, ...)
86	sysadm	1.1	{
87	sysadm	1.11	va_list args;
88			int retval;
89			char buf[1024];
90	sysadm	1.1
91	sysadm	1.15	log_head(buf, sizeof(buf));
92	sysadm	1.14	strncat(buf, format, sizeof(buf) - strnlen(buf, sizeof(buf)));
93	sysadm	1.3
94	sysadm	1.11	va_start(args, format);
95			retval = vfprintf(fp_log_err, buf, args);
96			va_end(args);
97	sysadm	1.2
98	sysadm	1.11	fflush(fp_log_err);
99	sysadm	1.1
100	sysadm	1.11	return retval;
101	sysadm	1.1	}
102	sysadm	1.5
103	sysadm	1.11	int log_std_redirect(int fd)
104	sysadm	1.5	{
105	sysadm	1.11	int ret;
106			close(fileno(fp_log_std));
107			ret = dup2(fd, fileno(fp_log_std));
108			return ret;
109	sysadm	1.5	}
110
111	sysadm	1.11	int log_err_redirect(int fd)
112	sysadm	1.5	{
113	sysadm	1.11	int ret;
114			close(fileno(fp_log_err));
115			ret = dup2(fd, fileno(fp_log_err));
116			return ret;
117	sysadm	1.5	}
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