1 /* Copyright (c) 2013, Vsevolod Stakhov
2 * All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 *
12 * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
13 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
14 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
15 * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
16 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
17 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
18 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
19 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
21 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 */
23
24 #include "ucl.h"
25 #include "ucl_internal.h"
26 #include <sys/types.h>
27 #include <fcntl.h>
28 #include <unistd.h>
29
30
31 int
main(int argc,char ** argv)32 main (int argc, char **argv)
33 {
34 char *inbuf = NULL;
35 struct ucl_parser *parser = NULL, *parser2 = NULL;
36 ucl_object_t *obj, *comments = NULL;
37 ssize_t bufsize, r;
38 FILE *in, *out;
39 unsigned char *emitted = NULL;
40 const char *fname_in = NULL, *fname_out = NULL;
41 int ret = 0, opt, json = 0, compact = 0, yaml = 0,
42 save_comments = 0, skip_macro = 0,
43 flags, fd_out, fd_in, use_fd = 0;
44 struct ucl_emitter_functions *func;
45
46 while ((opt = getopt(argc, argv, "fjcyCM")) != -1) {
47 switch (opt) {
48 case 'j':
49 json = 1;
50 break;
51 case 'c':
52 compact = 1;
53 break;
54 case 'C':
55 save_comments = 1;
56 break;
57 case 'y':
58 yaml = 1;
59 break;
60 case 'M':
61 skip_macro = true;
62 break;
63 case 'f':
64 use_fd = true;
65 break;
66 default: /* '?' */
67 fprintf (stderr, "Usage: %s [-jcy] [-CM] [-f] [in] [out]\n",
68 argv[0]);
69 exit (EXIT_FAILURE);
70 }
71 }
72
73 argc -= optind;
74 argv += optind;
75
76 switch (argc) {
77 case 1:
78 fname_in = argv[0];
79 break;
80 case 2:
81 fname_in = argv[0];
82 fname_out = argv[1];
83 break;
84 }
85
86 if (!use_fd) {
87 if (fname_in != NULL) {
88 in = fopen (fname_in, "r");
89 if (in == NULL) {
90 exit (-errno);
91 }
92 }
93 else {
94 in = stdin;
95 }
96 }
97 else {
98 if (fname_in != NULL) {
99 fd_in = open (fname_in, O_RDONLY);
100 if (fd_in == -1) {
101 exit (-errno);
102 }
103 }
104 else {
105 fd_in = STDIN_FILENO;
106 }
107 }
108
109 flags = UCL_PARSER_KEY_LOWERCASE;
110
111 if (save_comments) {
112 flags |= UCL_PARSER_SAVE_COMMENTS;
113 }
114
115 if (skip_macro) {
116 flags |= UCL_PARSER_DISABLE_MACRO;
117 }
118
119 parser = ucl_parser_new (flags);
120 ucl_parser_register_variable (parser, "ABI", "unknown");
121
122 if (fname_in != NULL) {
123 ucl_parser_set_filevars (parser, fname_in, true);
124 }
125
126 if (!use_fd) {
127 inbuf = malloc (BUFSIZ);
128 bufsize = BUFSIZ;
129 r = 0;
130
131 while (!feof (in) && !ferror (in)) {
132 if (r == bufsize) {
133 inbuf = realloc (inbuf, bufsize * 2);
134 bufsize *= 2;
135 if (inbuf == NULL) {
136 perror ("realloc");
137 exit (EXIT_FAILURE);
138 }
139 }
140 r += fread (inbuf + r, 1, bufsize - r, in);
141 }
142
143 if (ferror (in)) {
144 fprintf (stderr, "Failed to read the input file.\n");
145 exit (EXIT_FAILURE);
146 }
147
148 ucl_parser_add_chunk (parser, (const unsigned char *)inbuf, r);
149 fclose (in);
150 }
151 else {
152 ucl_parser_add_fd (parser, fd_in);
153 close (fd_in);
154 }
155
156 if (!use_fd) {
157 if (fname_out != NULL) {
158 out = fopen (fname_out, "w");
159 if (out == NULL) {
160 exit (-errno);
161 }
162 }
163 else {
164 out = stdout;
165 }
166 }
167 else {
168 if (fname_out != NULL) {
169 fd_out = open (fname_out, O_WRONLY | O_CREAT, 00644);
170 if (fd_out == -1) {
171 exit (-errno);
172 }
173 }
174 else {
175 fd_out = STDOUT_FILENO;
176 }
177 }
178
179
180 if (ucl_parser_get_error (parser) != NULL) {
181 fprintf (out, "Error occurred (phase 1): %s\n",
182 ucl_parser_get_error(parser));
183 ret = 1;
184 goto end;
185 }
186
187 obj = ucl_parser_get_object (parser);
188
189 if (save_comments) {
190 comments = ucl_object_ref (ucl_parser_get_comments (parser));
191 }
192
193 if (json) {
194 if (compact) {
195 emitted = ucl_object_emit (obj, UCL_EMIT_JSON_COMPACT);
196 }
197 else {
198 emitted = ucl_object_emit (obj, UCL_EMIT_JSON);
199 }
200 }
201 else if (yaml) {
202 emitted = ucl_object_emit (obj, UCL_EMIT_YAML);
203 }
204 else {
205 emitted = NULL;
206 func = ucl_object_emit_memory_funcs ((void **)&emitted);
207
208 if (func != NULL) {
209 ucl_object_emit_full (obj, UCL_EMIT_CONFIG, func, comments);
210 ucl_object_emit_funcs_free (func);
211 }
212 }
213
214 #if 0
215 fprintf (out, "%s\n****\n", emitted);
216 #endif
217
218 ucl_parser_free (parser);
219 ucl_object_unref (obj);
220 parser2 = ucl_parser_new (flags);
221 ucl_parser_add_string (parser2, (const char *)emitted, 0);
222
223 if (ucl_parser_get_error(parser2) != NULL) {
224 fprintf (out, "Error occurred (phase 2): %s\n",
225 ucl_parser_get_error(parser2));
226 fprintf (out, "%s\n", emitted);
227 ret = 1;
228 goto end;
229 }
230
231 if (emitted != NULL) {
232 free (emitted);
233 }
234 if (comments) {
235 ucl_object_unref (comments);
236 comments = NULL;
237 }
238
239 if (save_comments) {
240 comments = ucl_object_ref (ucl_parser_get_comments (parser2));
241 }
242
243 obj = ucl_parser_get_object (parser2);
244
245 if (!use_fd) {
246 func = ucl_object_emit_file_funcs (out);
247 }
248 else {
249 func = ucl_object_emit_fd_funcs (fd_out);
250 }
251
252 if (func != NULL) {
253 if (json) {
254 if (compact) {
255 ucl_object_emit_full (obj, UCL_EMIT_JSON_COMPACT,
256 func, comments);
257 }
258 else {
259 ucl_object_emit_full (obj, UCL_EMIT_JSON,
260 func, comments);
261 }
262 }
263 else if (yaml) {
264 ucl_object_emit_full (obj, UCL_EMIT_YAML,
265 func, comments);
266 }
267 else {
268 ucl_object_emit_full (obj, UCL_EMIT_CONFIG,
269 func, comments);
270 }
271
272 ucl_object_emit_funcs_free (func);
273 }
274
275 if (!use_fd) {
276 fprintf (out, "\n");
277 fclose (out);
278 }
279 else {
280 write (fd_out, "\n", 1);
281 close (fd_out);
282 }
283
284 ucl_object_unref (obj);
285
286 end:
287 if (parser2 != NULL) {
288 ucl_parser_free (parser2);
289 }
290 if (comments) {
291 ucl_object_unref (comments);
292 }
293 if (inbuf != NULL) {
294 free (inbuf);
295 }
296
297 return ret;
298 }
299