1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2005-2008 Poul-Henning Kamp
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 #include <stdio.h>
32 #include <assert.h>
33 #include <unistd.h>
34 #include <err.h>
35 #include <time.h>
36 #include <string.h>
37 #include <stdlib.h>
38 #include <sysexits.h>
39 #include <regex.h>
40
41 #include "libfifolog.h"
42
43 static time_t opt_B;
44 static time_t opt_E;
45 static const char *opt_T;
46 static const char *opt_o;
47 static const char *opt_R;
48 static regex_t R;
49
50 static FILE *fo;
51
52 static void
Render(void * priv __unused,time_t now,unsigned flag __unused,const unsigned char * p,unsigned l __unused)53 Render(void *priv __unused, time_t now, unsigned flag __unused, const unsigned char *p, unsigned l __unused)
54 {
55 static struct tm utc;
56 char buf[128];
57 int i;
58
59 if (now < opt_B || now > opt_E)
60 return;
61
62 if (opt_R != NULL && regexec(&R, (const char *)p, 0, NULL, 0))
63 return;
64
65 if (opt_T != NULL && *opt_T == '\0') {
66 fprintf(fo, "%s\n", p);
67 } else if (opt_T != NULL) {
68 (void)gmtime_r(&now, &utc);
69 i = strftime(buf, sizeof buf, opt_T, &utc);
70 assert(i > 0);
71 fprintf(fo, "%s %s\n", buf, p);
72 } else {
73 fprintf(fo, "%12ld %s\n", (long)now, p);
74 }
75 }
76
77 /*--------------------------------------------------------------------*/
78
79 static void
Usage(void)80 Usage(void)
81 {
82 fprintf(stderr,
83 "Usage: fiforead [options] fifofile\n"
84 "\t-b <start time integer>\n"
85 "\t-B <start time>\n"
86 "\t-e <end time integer>\n"
87 "\t-E <end time>\n"
88 "\t-o <output file>\n"
89 "\t-R <regexp> # match regexp\n"
90 "\t-t # format timestamps as %%Y%%m%%d%%H%%M%%S\n"
91 "\t-T <timestamp format>\n"
92 );
93 exit (EX_USAGE);
94 }
95
96 int
main(int argc,char * const * argv)97 main(int argc, char * const *argv)
98 {
99 int ch, i;
100 off_t o;
101 struct fifolog_reader *fl;
102
103 time(&opt_E);
104 opt_o = "-";
105 while ((ch = getopt(argc, argv, "b:B:e:E:o:R:tT:")) != -1) {
106 switch (ch) {
107 case 'b':
108 opt_B = strtoul(optarg, NULL, 0);
109 break;
110 case 'B':
111 opt_B = get_date(optarg);
112 if (opt_B == -1)
113 errx(1, "Didn't understand \"%s\"", optarg);
114 break;
115 case 'e':
116 opt_E = strtoul(optarg, NULL, 0);
117 break;
118 case 'E':
119 opt_E = get_date(optarg);
120 if (opt_E == -1)
121 errx(1, "Didn't understand \"%s\"", optarg);
122 break;
123 case 'o':
124 opt_o = optarg;
125 break;
126 case 'R':
127 opt_R = optarg;
128 break;
129 case 't':
130 opt_T = "%Y%m%d%H%M%S";
131 break;
132 case 'T':
133 opt_T = optarg;
134 break;
135 default:
136 Usage();
137 }
138 }
139 argc -= optind;
140 argv += optind;
141
142 if (opt_R != NULL) {
143 i = regcomp(&R, opt_R, REG_NOSUB);
144 if (i != 0) {
145 char buf[BUFSIZ];
146 (void)regerror(i, &R, buf, sizeof buf);
147 fprintf(stderr, "-R argument: %s\n", buf);
148 exit (1);
149 }
150 }
151
152 if (argv[0] == NULL)
153 Usage();
154
155 fprintf(stderr, "From\t%jd %s", (intmax_t)opt_B, ctime(&opt_B));
156 fprintf(stderr, "To\t%jd %s", (intmax_t)opt_E, ctime(&opt_E));
157 if (opt_B >= opt_E)
158 errx(1, "Begin time not before End time");
159
160 fl = fifolog_reader_open(argv[0]);
161
162 if (!strcmp(opt_o, "-"))
163 fo = stdout;
164 else {
165 fo = fopen(opt_o, "w");
166 if (fo == NULL)
167 err(1, "Cannot open: %s", argv[1]);
168 }
169
170 o = fifolog_reader_seek(fl, opt_B);
171 fifolog_reader_process(fl, o, Render, NULL, opt_E);
172 return (0);
173 }
174