summaryrefslogtreecommitdiff
path: root/src/util/debug.c
blob: 5b6fccd684e78c5c189559bc10413f711b781e8e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/*
    Authors:
        Simo Sorce <ssorce@redhat.com>
        Stephen Gallagher <sgallagh@redhat.com>

    Copyright (C) 2009 Red Hat

    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.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#define _GNU_SOURCE
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>

#include "util/util.h"

const char *debug_prg_name = "sssd";
int debug_level = 0;
int debug_timestamps = 1;

int debug_to_file = 0;
const char *debug_log_file = "sssd";
FILE *debug_file = NULL;


errno_t set_debug_file_from_fd(const int fd)
{
    FILE *dummy;

    dummy = fdopen(fd, "a");
    if (dummy == NULL) {
        DEBUG(1, ("fdopen failed [%d][%s].\n", errno, strerror(errno)));
        return errno;
    }

    debug_file = dummy;

    return EOK;
}

void debug_fn(const char *format, ...)
{
    va_list ap;

    va_start(ap, format);

    vfprintf(debug_file ? debug_file : stderr, format, ap);
    fflush(debug_file ? debug_file : stderr);

    va_end(ap);
}

void ldb_debug_messages(void *context, enum ldb_debug_level level,
                        const char *fmt, va_list ap)
{
    int loglevel = -1;
    int ret;
    char * message = NULL;

    switch(level) {
    case LDB_DEBUG_FATAL:
        loglevel = 0;
        break;
    case LDB_DEBUG_ERROR:
        loglevel = 1;
        break;
    case LDB_DEBUG_WARNING:
        loglevel = 6;
        break;
    case LDB_DEBUG_TRACE:
        loglevel = 9;
        break;
    }

    ret = vasprintf(&message, fmt, ap);
    if (ret < 0) {
        /* ENOMEM */
        return;
    }

    if (loglevel <= debug_level) {
        if (debug_timestamps) {
            time_t rightnow = time(NULL);
            char stamp[25];
            memcpy(stamp, ctime(&rightnow), 24);
            stamp[24] = '\0';
            debug_fn("(%s) [%s] [ldb] (%d): %s\n",
                     stamp, debug_prg_name, loglevel, message);
        } else {
            debug_fn("[%s] [ldb] (%d): %s\n",
                     debug_prg_name, loglevel, message);
        }
    }
    free(message);
}

int open_debug_file_ex(const char *filename, FILE **filep)
{
    FILE *f = NULL;
    char *logpath;
    const char *log_file;
    mode_t old_umask;
    int ret;

    if (filename == NULL) {
        log_file = debug_log_file;
    } else {
        log_file = filename;
    }

    ret = asprintf(&logpath, "%s/%s.log", LOG_PATH, log_file);
    if (ret == -1) {
        return ENOMEM;
    }

    if (debug_file && !filep) fclose(debug_file);

    old_umask = umask(0177);
    f = fopen(logpath, "a");
    if (f == NULL) {
        free(logpath);
        return EIO;
    }
    umask(old_umask);

    if (filep == NULL) {
        debug_file = f;
    } else {
        *filep = f;
    }
    free(logpath);
    return EOK;
}

int open_debug_file(void)
{
    return open_debug_file_ex(NULL, NULL);
}

int rotate_debug_files(void)
{
    int ret;

    if (!debug_to_file) return EOK;

    ret = fclose(debug_file);
    if (ret) return ret;
    debug_file = NULL;

    return open_debug_file();
}