/[public]/psiconv/trunk/lib/psiconv/configuration.c
ViewVC logotype

Diff of /psiconv/trunk/lib/psiconv/configuration.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 168 Revision 204
1/* 1/*
2 configuration.c - Part of psiconv, a PSION 5 file formats converter 2 configuration.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 1999, 2000,2003 Frodo Looijaard <frodol@dds.nl> 3 Copyright (c) 1999-2004 Frodo Looijaard <frodol@dds.nl>
4 4
5 This program is free software; you can redistribute it and/or modify 5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by 6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or 7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version. 8 (at your option) any later version.
… …
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18*/
19 19
20#include "config.h" 20#include "config.h"
21#include "compat.h" 21#include "compat.h"
22#include "error.h"
23#include "unicode.h"
24
22#include <stdio.h> 25#include <stdio.h>
23#include <stdlib.h> 26#include <stdlib.h>
24#include <string.h> 27#include <string.h>
28#include <strings.h>
29#include <sys/types.h>
30#include <sys/stat.h>
31#include <unistd.h>
32#include <fcntl.h>
25 33
26#include "configuration.h" 34#include "configuration.h"
27#include "error.h"
28 35
29#ifdef DMALLOC 36#ifdef DMALLOC
30#include <dmalloc.h> 37#include <dmalloc.h>
31#endif 38#endif
32 39
33#ifndef CONFIGURATION_SEARCH_PATH 40#ifndef CONFIGURATION_SEARCH_PATH
34#define CONFIGURATION_SEARCH_PATH "/etc/psiconv.conf:~/.psiconv.conf" 41#define CONFIGURATION_SEARCH_PATH PSICONVETCDIR "/psiconv.conf:~/.psiconv.conf"
35#endif 42#endif
36struct psiconv_config_s default_config = 43static struct psiconv_config_s default_config =
37 { PSICONV_VERB_WARN, 2, psiconv_bool_true }; 44 { PSICONV_VERB_WARN, 2, 0,0,0,psiconv_bool_false,NULL,'?' };
38 45
39psiconv_config psiconv_config_read(const char *extra_config_file) 46static void psiconv_config_parse_statement(const char *filename,
47 int linenr,
48 const char *var, int value,
49 psiconv_config *config);
50
51static void psiconv_config_parse_line(const char *filename, int linenr,
52 const char *line, psiconv_config *config);
53
54static void psiconv_config_parse_file(const char *filename,
55 psiconv_config *config);
56
57psiconv_config psiconv_config_default(void)
40{ 58{
41 psiconv_config config; 59 psiconv_config result;
42 if (!(config = malloc(sizeof(*config)))) 60 result = malloc(sizeof(*result));
61 *result = default_config;
62 return result;
63}
64
65psiconv_config_free(psiconv_config config)
66{
67 free(config);
68}
69
70void psiconv_config_parse_statement(const char *filename,
71 int linenr,
72 const char *var, int value,
73 psiconv_config *config)
74{
75 int charnr;
76
77 if (!(strcasecmp(var,"verbosity"))) {
78 if ((value >= 1) && (value <= 4))
79 (*config)->verbosity = value;
80 else
81 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
82 "Verbosity should be between 1 and 5",filename,linenr);
83 } else if (!(strcasecmp(var,"color"))) {
84 if ((value == 0) || (value == 1))
85 (*config)->color = value;
86 else
87 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
88 "Color should be 0 or 1",filename,linenr);
89 } else if (!(strcasecmp(var,"colordepth"))) {
90 if ((value > 0) && (value <= 32))
91 (*config)->colordepth = value;
92 else
93 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
94 "ColorDepth should be between 1 and 32",filename,linenr);
95 } else if (!(strcasecmp(var,"redbits"))) {
96 if ((value >= 0) && (value <= 32))
97 (*config)->redbits = value;
98 else
99 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
100 "RedBits should be between 1 and 32 or 0",filename,linenr);
101 } else if (!(strcasecmp(var,"greenbits"))) {
102 if ((value >= 0) && (value <= 32))
103 (*config)->greenbits = value;
104 else
105 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
106 "GreenBits should be between 1 and 32 or 0",filename,linenr);
107 } else if (!(strcasecmp(var,"bluebits"))) {
108 if ((value >= 0) && (value <= 32))
109 (*config)->bluebits = value;
110 else
111 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
112 "BlueBits should be between 1 and 32 or 0",filename,linenr);
113 } else if (!(strcasecmp(var,"characterset"))) {
114 if ((value >= 0) && (value <= 1))
115 psiconv_unicode_select_characterset(*config,value);
116 else
117 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
118 "CharacterSet should be between 0 and 0",
119 filename,linenr);
120 } else if (!(strcasecmp(var,"unknownunicodechar"))) {
121 if ((value >= 1) && (value < 0x10000))
122 (*config)->unknown_unicode_char = value;
123 else
124 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
125 "UnknownUnicodeChar should be between 1 and 65535",
126 filename,linenr);
127 } else if (!(strcasecmp(var,"unknownepocchar"))) {
128 if ((value >= 1) && (value < 0x100))
129 (*config)->unknown_epoc_char = value;
130 else
131 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
132 "UnknownEPOCChar should be between 1 and 255",
133 filename,linenr);
134 } else if (sscanf(var,"char%d",&charnr) == strlen(var)) {
135 if ((charnr < 0) || (charnr > 255))
136 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
137 "CharXXX should have XXX between 0 and 255",
138 filename,linenr);
139 if ((value >= 1) && (value <= 0x10000))
140 (*config)->unicode_table[charnr] = value;
141 else
142 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
143 "CharXXX should be between 1 and 65535",
144 filename,linenr);
145 } else {
146 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
147 "Unknown variable %s",filename,linenr,var);
148 }
149 psiconv_debug(*config,0,0,"Configuration file %s, line %d: "
150 "Set variable %s to %d",filename,linenr,var,value);
151}
152
153
154void psiconv_config_parse_line(const char *filename, int linenr,
155 const char *line, psiconv_config *config)
156{
157
158 int sovar,eovar,soval,eoval,eol;
159 char *var;
160 long val;
161
162 psiconv_debug(*config,0,0,"Going to parse line %d: %s",linenr,line);
163 sovar = 0;
164 while (line[sovar] && (line[sovar] < 32))
165 sovar ++;
166 if (!line[sovar] || line[sovar] == '#')
43 return NULL; 167 return;
44 memcpy(config,&default_config,sizeof(*config)); 168 eovar = sovar;
45 return config; 169 while (line[eovar] && (((line[eovar] >= 'A') && (line[eovar] <= 'Z')) ||
46} 170 ((line[eovar] >= 'a') && (line[eovar] <= 'z'))))
171 eovar ++;
172 if (sovar == eovar) {
173 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
174 "Syntax error (no variable found)",filename,linenr);
175 return;
176 }
177 soval = eovar;
178 while (line[soval] && (line[soval] <= 32))
179 soval ++;
180 if (line[soval] != '=') {
181 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
182 "Syntax error (no = token found)",filename,linenr);
183 return;
184 }
185 soval ++;
186 while (line[soval] && (line[soval] <= 32))
187 soval ++;
188 eoval = soval;
189 while (line[eoval] && ((line[eoval] >= '0') && (line[eovar] <= '9')))
190 eoval ++;
191 if (eoval == soval) {
192 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
193 "Syntax error (no value found)",filename,linenr);
194 return;
195 }
196 if (soval - eoval > 7) {
197 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
198 "Syntax error (value too large)",filename,linenr);
199 return;
200 }
201 eol = eoval;
202 while (line[eol] && (line[eol] < 32))
203 eol ++;
204 if (line[eol]) {
205 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
206 "Syntax error (trailing garbage)",filename,linenr);
207 return;
208 }
47 209
48/*TO DO */ 210 var = malloc(eovar - sovar + 1);
211 memcpy(var,line + sovar, eovar - sovar);
212 var[eovar-sovar] = 0;
49 213
50#if 0 214 val = atol(line + soval);
51 215
52/* I hate string manipulation in C */ 216 psiconv_config_parse_statement(filename,linenr,var,val,config);
53psiconv_config_t psiconv_config_read(const char *extra_config_files) 217 free(var);
218}
219
220
221void psiconv_config_parse_file(const char *filename, psiconv_config *config)
54{ 222{
55 psiconv_config_t result = default_config;
56 char *path,pathptr;
57 int file; 223 int file,linenr;
58 struct stat stat_buf; 224 struct stat stat_buf;
225 off_t filesize,bytes_left,bytes_read,sol,eol;
226 char *filebuffer,*filebuffer_ptr;
227
228 psiconv_progress(*config,0,0,
229 "Going to access configuration file %s",filename);
230
231 /* Try to open the file; it may fail, if it does not exist for example */
232 if ((file = open(filename,O_RDONLY)) == -1)
233 goto ERROR0;
234
235 /* Read the contents of the file into filebuffer. This may fail */
236 if (fstat(file,&stat_buf)) {
237 if (close(file))
238 psiconv_error(*config,0,0,"Configuration file %s: "
239 "Couldn't close file",filename);
240 return;
241 }
242
243 filesize = stat_buf.st_size;
244 if (!(filebuffer = malloc(filesize + 1))) {
245 psiconv_error(*config,0,0,"Configuration file %s: "
246 "Out of memory error",filename);
247 goto ERROR1;
248 }
249
250 filebuffer_ptr = filebuffer;
251 bytes_left = filesize;
252 bytes_read = 1; /* Dummy for the first time through the loop */
253 while ((bytes_read > 0) && bytes_left) {
254 bytes_read = read(file,filebuffer_ptr,bytes_left);
255 if (bytes_read > 0) {
256 filebuffer_ptr += bytes_read;
257 bytes_left -= bytes_read;
258 }
259 }
260
261 /* On NFS, the first read may fail and this is not fatal */
262 if (bytes_left && (bytes_left != filesize)) {
263 psiconv_error(*config,0,0,"Configuration file %s: "
264 "Couldn't read file into memory",filename);
265 goto ERROR2;
266 }
267
268 if (close(file)) {
269 psiconv_error(*config,0,0,"Configuration file %s: "
270 "Couldn't close file",filename);
271 file = -1;
272 goto ERROR2;
273 }
274 file = -1;
275
276 psiconv_progress(*config,0,0,
277 "Going to parse configuration file %s: ",filename);
278 /* Now we walk through the file to isolate lines */
279 linenr = 0;
280 sol = 0;
281
282 while (sol < filesize) {
283 linenr ++;
284 eol = sol;
285 while ((eol < filesize) && (filebuffer[eol] != 13) &&
286 (filebuffer[eol] != 10) && (filebuffer[eol] != 0))
287 eol ++;
288
289 if ((eol < filesize) && (filebuffer[eol] == 0)) {
290 psiconv_error(*config,0,0,"Configuration file %s, line %d: "
291 "Unexpected character \000 found",filename,linenr);
292 goto ERROR2;
293 }
294 if ((eol < filesize + 1) &&
295 (((filebuffer[eol] == 13) && (filebuffer[eol+1] == 10)) ||
296 ((filebuffer[eol] == 10) && (filebuffer[eol+1] == 13)))) {
297 filebuffer[eol] = 0;
298 eol ++;
299 }
300 filebuffer[eol] = 0;
301 psiconv_config_parse_line(filename,linenr,filebuffer + sol,config);
302 sol = eol+1;
303 }
304 free(filebuffer);
305 return;
306
307ERROR2:
308 free(filebuffer);
309ERROR1:
310 if ((file != -1) && close(file))
311 psiconv_error(*config,0,0,"Configuration file %s: "
312 "Couldn't close file",filename);
313ERROR0:
314 return;
315}
316
317void psiconv_config_read(const char *extra_config_files,
318 psiconv_config *config)
319{
320 char *path,*pathptr,*filename,*filename_old;
321 const char *home;
322 int filename_len;
59 323
60 /* Make path be the complete search path, colon separated */ 324 /* Make path be the complete search path, colon separated */
61 if (extra_config_files && strlen(extra_config_files)) { 325 if (extra_config_files && strlen(extra_config_files)) {
62 path = malloc(strlen(CONFIGURATION_SEARCH_PATH) + 326 path = malloc(strlen(CONFIGURATION_SEARCH_PATH) +
63 strlen(extra_config_files) + 2); 327 strlen(extra_config_files) + 2);
64 strcpy(path,CONFIGURATION_SEARCH_PATH); 328 strcpy(path,CONFIGURATION_SEARCH_PATH);
65 strcat(path,":"); 329 strcat(path,":");
66 strcat(path,extra_config_files) 330 strcat(path,extra_config_files);
67 } else { 331 } else {
68 path = strdup(CONFIGURATION_SEARCH_PATH) 332 path = strdup(CONFIGURATION_SEARCH_PATH);
69 } 333 }
70 334
71 pathptr = path; 335 pathptr = path;
72 while (strlen(pathptr)) { 336 while (strlen(pathptr)) {
73 /* Isolate the next filename */ 337 /* Isolate the next filename */
74 filename_len = (path - index(':',path)) || strlen(path); 338 filename_len = (index(pathptr,':')?(index(pathptr,':') - pathptr):
339 strlen(pathptr));
75 filename = malloc(filename_len + 1); 340 filename = malloc(filename_len + 1);
76 filename = strncpy(filename,path,filename_len); 341 filename = strncpy(filename,pathptr,filename_len);
77 filename[filename_len + 1] = 0; 342 filename[filename_len] = 0;
78 pathptr += filename_len; 343 pathptr += filename_len;
79 if (strlen(pathptr)) 344 if (strlen(pathptr))
80 pathptr ++; 345 pathptr ++;
81
82 /* Try to open the file; it may fail, if it does not exist for example */
83 if ((file = open(filename,O_RDONLY)) == -1)
84 continue;
85 346
86 /* Read the contents of the file into filebuffer */ 347 /* Do ~ substitution */
87 if (!fstat(file,&stat_buf)) 348 if ((filename[0] == '~') && ((filename[1] == '/') || filename[1] == 0)) {
88 continue; 349 home = getenv("HOME");
89 filesize = stat_buf.off_t; 350 if (home) {
90 filebuffer = malloc(filesize + 1); 351 filename_old = filename;
91 filebuffer_ptr = filebuffer; 352 filename = malloc(strlen(filename_old) + strlen(home));
92 bytes_left = filesize; 353 strcpy(filename,home);
93 bytes_read = 1 /* Dummy for the first time through the loop */ 354 strcpy(filename + strlen(filename),filename_old+1);
94 while ((bytes_read > 0) && bytes_left) { 355 free(filename_old);
95 bytes_read = read(file,filebuffer_ptr,bytes_left);
96 if (bytes_read == -1) {
97 filebuffer_ptr += bytes_read;
98 bytes_left -= bytes_read;
99 } 356 }
100 } 357 }
101 if (bytes_left) 358
102 continue; 359 psiconv_config_parse_file(filename,config);
103 360 free(filename);
104 /* Try to parse the filebuffer */
105 filebuffer_ptr = file_buffer;
106 bytes_left = filesize;
107 while (bytes_left) {
108 /* Parse a line */
109 line_length = index(''
110
111 } 361 }
112} 362}
113
114#endif
115
Legend:
Removed from v.168  
changed lines
  Added in v.204
frodo@frodo.looijaard.name
 ViewVC Help
Powered by ViewVC 1.1.26