File: dqtool.c

package info (click to toggle)
syslog-ng 3.19.1-5
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 13,176 kB
  • sloc: ansic: 114,472; makefile: 4,697; sh: 4,391; python: 4,282; java: 4,047; xml: 2,435; yacc: 1,108; lex: 426; perl: 193; awk: 184
file content (317 lines) | stat: -rw-r--r-- 7,779 bytes parent folder | download
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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
/*
 * Copyright (c) 2002-2016 Balabit
 * Copyright (c) 2016 Viktor Juhasz <viktor.juhasz@balabit.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * As an additional exemption you are allowed to compile & link against the
 * OpenSSL libraries as published by the OpenSSL project. See the file
 * COPYING for details.
 *
 */

#include "syslog-ng.h"
#include "logqueue.h"
#include "template/templates.h"
#include "logmsg/logmsg.h"
#include "messages.h"
#include "logpipe.h"
#include "logqueue-disk.h"
#include "logqueue-disk-reliable.h"
#include "logqueue-disk-non-reliable.h"
#include "logmsg/logmsg-serialize.h"
#include "scratch-buffers.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

gchar *template_string;
gboolean display_version;
gboolean debug_flag;
gboolean verbose_flag;

static GOptionEntry cat_options[] =
{
  {
    "template",  't', 0, G_OPTION_ARG_STRING, &template_string,
    "Template to format the serialized messages", "<template>"
  },
  { NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL }
};

static GOptionEntry info_options[] =
{
  { NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL }
};

static gboolean
open_queue(char *filename, LogQueue **lq, DiskQueueOptions *options)
{
  options->read_only = TRUE;
  options->reliable = FALSE;
  FILE *f = fopen(filename, "rb");
  if (f)
    {
      gchar idbuf[5];
      if (fread(idbuf, 4, 1, f) == 0)
        fprintf(stderr, "File reading error: %s\n", filename);
      fclose(f);
      idbuf[4] = '\0';
      if (!strcmp(idbuf, "SLRQ"))
        options->reliable = TRUE;
    }
  else
    {
      fprintf(stderr, "File not found: %s\n", filename);
      return FALSE;
    }

  if (options->reliable)
    {
      options->disk_buf_size = 128;
      options->mem_buf_size = 1024 * 1024;
      *lq = log_queue_disk_reliable_new(options, NULL);
    }
  else
    {
      options->disk_buf_size = 1;
      options->mem_buf_size = 128;
      options->qout_size = 128;
      *lq = log_queue_disk_non_reliable_new(options, NULL);
    }

  if (!log_queue_disk_load_queue(*lq, filename))
    {
      fprintf(stderr, "Error restoring disk buffer file.\n");
      return FALSE;
    }

  return TRUE;
}

static gint
dqtool_cat(int argc, char *argv[])
{
  GString *msg;
  LogMessage *log_msg = NULL;
  GError *error = NULL;
  LogTemplate *template = NULL;
  DiskQueueOptions options = {0};
  gint i;

  if (template_string)
    {
      template_string = g_strcompress(template_string);
      template = log_template_new(configuration, NULL);
      if (!log_template_compile(template, template_string, &error))
        {
          fprintf(stderr, "Error compiling template: %s, error: %s\n", template->template, error->message);
          g_clear_error(&error);
          return 1;
        }
      g_free(template_string);
    }

  if (!template)
    {
      template = log_template_new(configuration, NULL);
      log_template_compile(template, "$DATE $HOST $MSGHDR$MSG\n", NULL);
    }

  msg = g_string_sized_new(128);
  for (i = optind; i < argc; i++)
    {
      LogPathOptions local_options = LOG_PATH_OPTIONS_INIT;
      LogQueue *lq;

      if (!open_queue(argv[i], &lq, &options))
        continue;

      log_queue_set_use_backlog(lq, TRUE);
      log_queue_rewind_backlog_all(lq);

      while ((log_msg = log_queue_pop_head(lq, &local_options)) != NULL)
        {
          /* format log */
          log_template_format(template, log_msg, &configuration->template_options, LTZ_LOCAL, 0, NULL, msg);
          log_msg_unref(log_msg);
          log_msg = NULL;

          printf("%s", msg->str);
        }

      log_queue_unref(lq);
    }
  g_string_free(msg, TRUE);
  return 0;

}

static gint
dqtool_info(int argc, char *argv[])
{
  gint i;
  for (i = optind; i < argc; i++)
    {
      LogQueue *lq;
      DiskQueueOptions options = {0};

      if (!open_queue(argv[i], &lq, &options))
        continue;
      log_queue_unref(lq);
    }
  return 0;
}

static GOptionEntry dqtool_options[] =
{
  {
    "debug",     'd', 0, G_OPTION_ARG_NONE, &debug_flag,
    "Enable debug/diagnostic messages on stderr", NULL
  },
  {
    "verbose",   'v', 0, G_OPTION_ARG_NONE, &verbose_flag,
    "Enable verbose messages on stderr", NULL
  },
  {
    "version",   'V', 0, G_OPTION_ARG_NONE, &display_version,
    "Display version number (" SYSLOG_NG_VERSION ")", NULL
  },
  { NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL }
};

static struct
{
  const gchar *mode;
  const GOptionEntry *options;
  const gchar *description;
  gint (*main)(gint argc, gchar *argv[]);
} modes[] =
{
  { "cat", cat_options, "Print the contents of a disk queue file", dqtool_cat },
  { "info", info_options, "Print infos about the given disk queue file", dqtool_info },
  { NULL, NULL },
};

static const gchar *
dqtool_mode(int *argc, char **argv[])
{
  gint i;
  const gchar *mode;

  for (i = 1; i < (*argc); i++)
    {
      if ((*argv)[i][0] != '-')
        {
          mode = (*argv)[i];
          memmove(&(*argv)[i], &(*argv)[i+1], ((*argc) - i) * sizeof(gchar *));
          (*argc)--;
          return mode;
        }
    }
  return NULL;
}

void
usage(void)
{
  gint mode;

  fprintf(stderr, "Syntax: dqtool <command> [options]\nPossible commands are:\n");
  for (mode = 0; modes[mode].mode; mode++)
    {
      fprintf(stderr, "    %-12s %s\n", modes[mode].mode, modes[mode].description);
    }
}

void
version(void)
{
  printf(SYSLOG_NG_VERSION "\n");
}

int
main(int argc, char *argv[])
{
  const gchar *mode_string;
  GOptionContext *ctx;
  gint mode;
  GError *error = NULL;

  mode_string = dqtool_mode(&argc, &argv);
  if (!mode_string)
    {
      usage();
      return 1;
    }

  ctx = NULL;
  for (mode = 0; modes[mode].mode; mode++)
    {
      if (strcmp(modes[mode].mode, mode_string) == 0)
        {
          ctx = g_option_context_new(mode_string);
#if GLIB_CHECK_VERSION (2, 12, 0)
          g_option_context_set_summary(ctx, modes[mode].description);
#endif
          g_option_context_add_main_entries(ctx, modes[mode].options, NULL);
          g_option_context_add_main_entries(ctx, dqtool_options, NULL);
          break;
        }
    }

  if (!ctx)
    {
      fprintf(stderr, "Unknown command\n");
      usage();
      return 1;
    }

  if (!g_option_context_parse(ctx, &argc, &argv, &error))
    {
      fprintf(stderr, "Error parsing command line arguments: %s\n", error ? error->message : "Invalid arguments");
      g_clear_error(&error);
      g_option_context_free(ctx);
      return 1;
    }
  g_option_context_free(ctx);
  if (display_version)
    {
      version();
      return 0;
    }

  configuration = cfg_new_snippet();

  configuration->template_options.frac_digits = 3;
  configuration->template_options.time_zone_info[LTZ_LOCAL] = time_zone_info_new(NULL);

  msg_init(TRUE);
  stats_init();
  scratch_buffers_global_init();
  scratch_buffers_allocator_init();
  log_template_global_init();
  log_msg_registry_init();
  log_tags_global_init();
  modes[mode].main(argc, argv);
  log_tags_global_deinit();
  scratch_buffers_allocator_deinit();
  scratch_buffers_global_deinit();
  stats_destroy();
  msg_deinit();
  return 0;

}