1 /*
2 Bacula(R) - The Network Backup Solution
3
4 Copyright (C) 2000-2020 Kern Sibbald
5
6 The original author of Bacula is Kern Sibbald, with contributions
7 from many others, a complete list can be found in the file AUTHORS.
8
9 You may use this file and others of this release according to the
10 license defined in the LICENSE file, which includes the Affero General
11 Public License, v3.0 ("AGPLv3") and some additional permissions and
12 terms pursuant to its AGPLv3 Section 7.
13
14 This notice must be preserved when any source code is
15 conveyed and/or propagated.
16
17 Bacula(R) is a registered trademark of Kern Sibbald.
18 */
19 /*
20 * Test program for testing regular expressions.
21 *
22 * Kern Sibbald, MMVI
23 *
24 */
25
26 #include "bacula.h"
27
28 /*
29 * If you define BACULA_REGEX, bregex will be built with the
30 * Bacula bregex library, which is the same code that we
31 * use on Win32, thus using Linux, you can test your Win32
32 * expressions. Otherwise, this program will link with the
33 * system library routines.
34 */
35 //#define BACULA_REGEX
36
37 #ifdef BACULA_REGEX
38
39 #include "lib/bregex.h"
40
41 #else
42 #ifndef HAVE_REGEX_H
43 #include "lib/bregex.h"
44 #else
45 #include <regex.h>
46 #endif
47
48 #endif
49
50
usage()51 static void usage()
52 {
53 fprintf(stderr,
54 "\n"
55 "Usage: bregex [-d debug_level] -f <data-file>\n"
56 " -f specify file of data to be matched\n"
57 " -l suppress line numbers\n"
58 " -n print lines that do not match\n"
59 " -d <nn> set debug level to <nn>\n"
60 " -dt print timestamp in debug output\n"
61 " -? print this message.\n"
62 "\n\n");
63
64 exit(1);
65 }
66
67
main(int argc,char * const * argv)68 int main(int argc, char *const *argv)
69 {
70 regex_t preg;
71 char prbuf[500];
72 char *fname = NULL;
73 int rc, ch;
74 char data[1000];
75 char pat[500];
76 FILE *fd;
77 bool match_only = true;
78 int lineno;
79 bool no_linenos = false;
80
81
82 setlocale(LC_ALL, "");
83 bindtextdomain("bacula", LOCALEDIR);
84 textdomain("bacula");
85
86 while ((ch = getopt(argc, argv, "d:f:ln?")) != -1) {
87 switch (ch) {
88 case 'd': /* set debug level */
89 if (*optarg == 't') {
90 dbg_timestamp = true;
91 } else {
92 debug_level = atoi(optarg);
93 if (debug_level <= 0) {
94 debug_level = 1;
95 }
96 }
97 break;
98
99 case 'f': /* data */
100 fname = optarg;
101 break;
102
103 case 'l':
104 no_linenos = true;
105 break;
106
107 case 'n':
108 match_only = false;
109 break;
110
111 case '?':
112 default:
113 usage();
114
115 }
116 }
117 argc -= optind;
118 argv += optind;
119
120 if (!fname) {
121 printf("A data file must be specified.\n");
122 usage();
123 }
124
125 OSDependentInit();
126
127 for ( ;; ) {
128 printf("Enter regex pattern: ");
129 if (fgets(pat, sizeof(pat)-1, stdin) == NULL) {
130 break;
131 }
132 strip_trailing_newline(pat);
133 if (pat[0] == 0) {
134 exit(0);
135 }
136 rc = regcomp(&preg, pat, REG_EXTENDED);
137 if (rc != 0) {
138 regerror(rc, &preg, prbuf, sizeof(prbuf));
139 printf("Regex compile error: %s\n", prbuf);
140 continue;
141 }
142 fd = bfopen(fname, "r");
143 if (!fd) {
144 printf(_("Could not open data file: %s\n"), fname);
145 exit(1);
146 }
147 lineno = 0;
148 while (fgets(data, sizeof(data)-1, fd)) {
149 const int nmatch = 30;
150 regmatch_t pmatch[nmatch];
151 strip_trailing_newline(data);
152 lineno++;
153 rc = regexec(&preg, data, nmatch, pmatch, 0);
154 if ((match_only && rc == 0) || (!match_only && rc != 0)) {
155 if (no_linenos) {
156 printf("%s\n", data);
157 } else {
158 printf("%5d: %s\n", lineno, data);
159 }
160 }
161 }
162 fclose(fd);
163 regfree(&preg);
164 }
165 exit(0);
166 }
167