/[public]/psiconv/trunk/lib/psiconv/configuration.c
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Diff of /psiconv/trunk/lib/psiconv/configuration.c

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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.
… …
16 along with this program; if not, write to the Free Software 16 along with this program; if not, write to the Free Software
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 "error.h" 22#include "error.h"
22#include "compat.h" 23#include "unicode.h"
24
23#include <stdio.h> 25#include <stdio.h>
24#include <stdlib.h> 26#include <stdlib.h>
25#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>
26 33
27#include "configuration.h" 34#include "configuration.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 "/etc/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_false,NULL }; 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
65void psiconv_config_parse_statement(const char *filename,
66 int linenr,
67 const char *var, int value,
68 psiconv_config *config)
69{
70 int charnr;
71
72 if (!(strcasecmp(var,"verbosity"))) {
73 if ((value >= 1) && (value <= 4))
74 (*config)->verbosity = value;
75 else
76 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
77 "Verbosity should be between 1 and 5",filename,linenr);
78 } else if (!(strcasecmp(var,"color"))) {
79 if ((value == 0) || (value == 1))
80 (*config)->color = value;
81 else
82 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
83 "Color should be 0 or 1",filename,linenr);
84 } else if (!(strcasecmp(var,"colordepth"))) {
85 if ((value > 0) && (value <= 32))
86 (*config)->colordepth = value;
87 else
88 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
89 "ColorDepth should be between 1 and 32",filename,linenr);
90 } else if (!(strcasecmp(var,"redbits"))) {
91 if ((value >= 0) && (value <= 32))
92 (*config)->redbits = value;
93 else
94 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
95 "RedBits should be between 1 and 32 or 0",filename,linenr);
96 } else if (!(strcasecmp(var,"greenbits"))) {
97 if ((value >= 0) && (value <= 32))
98 (*config)->greenbits = value;
99 else
100 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
101 "GreenBits should be between 1 and 32 or 0",filename,linenr);
102 } else if (!(strcasecmp(var,"bluebits"))) {
103 if ((value >= 0) && (value <= 32))
104 (*config)->bluebits = value;
105 else
106 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
107 "BlueBits should be between 1 and 32 or 0",filename,linenr);
108 } else if (!(strcasecmp(var,"characterset"))) {
109 if ((value >= 0) && (value <= 1))
110 psiconv_unicode_select_characterset(*config,value);
111 else
112 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
113 "CharacterSet should be between 0 and 0",
114 filename,linenr);
115 } else if (!(strcasecmp(var,"unknownunicodechar"))) {
116 if ((value >= 1) && (value < 0x10000))
117 (*config)->unknown_unicode_char = value;
118 else
119 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
120 "UnknownUnicodeChar should be between 1 and 65535",
121 filename,linenr);
122 } else if (!(strcasecmp(var,"unknownepocchar"))) {
123 if ((value >= 1) && (value < 0x100))
124 (*config)->unknown_epoc_char = value;
125 else
126 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
127 "UnknownEPOCChar should be between 1 and 255",
128 filename,linenr);
129 } else if (sscanf(var,"char%d",&charnr) == strlen(var)) {
130 if ((charnr < 0) || (charnr > 255))
131 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
132 "CharXXX should have XXX between 0 and 255",
133 filename,linenr);
134 if ((value >= 1) && (value <= 0x10000))
135 (*config)->unicode_table[charnr] = value;
136 else
137 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
138 "CharXXX should be between 1 and 65535",
139 filename,linenr);
140 } else {
141 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
142 "Unknown variable %s",filename,linenr,var);
143 }
144 psiconv_debug(*config,0,0,"Configuration file %s, line %d: "
145 "Set variable %s to %d",filename,linenr,var,value);
146}
147
148
149void psiconv_config_parse_line(const char *filename, int linenr,
150 const char *line, psiconv_config *config)
151{
152
153 int sovar,eovar,soval,eoval,eol;
154 char *var;
155 long val;
156
157 psiconv_debug(*config,0,0,"Going to parse line %d: %s",linenr,line);
158 sovar = 0;
159 while (line[sovar] && (line[sovar] < 32))
160 sovar ++;
161 if (!line[sovar] || line[sovar] == '#')
43 return NULL; 162 return;
44 memcpy(config,&default_config,sizeof(*config)); 163 eovar = sovar;
45 return config; 164 while (line[eovar] && (((line[eovar] >= 'A') && (line[eovar] <= 'Z')) ||
46} 165 ((line[eovar] >= 'a') && (line[eovar] <= 'z'))))
166 eovar ++;
167 if (sovar == eovar)
168 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
169 "Syntax error (no variable found)",filename,linenr);
170 soval = eovar;
171 while (line[soval] && (line[soval] <= 32))
172 soval ++;
173 if (line[soval] != '=')
174 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
175 "Syntax error (no = token found)",filename,linenr);
176 soval ++;
177 while (line[soval] && (line[soval] <= 32))
178 soval ++;
179 eoval = soval;
180 while (line[eoval] && ((line[eoval] >= '0') && (line[eovar] <= '9')))
181 eoval ++;
182 if (eoval == soval)
183 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
184 "Syntax error (no value found)",filename,linenr);
185 if (soval - eoval > 7)
186 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
187 "Syntax error (value too large)",filename,linenr);
188 eol = eoval;
189 while (line[eol] && (line[eol] < 32))
190 eol ++;
191 if (line[eol])
192 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
193 "Syntax error (trailing garbage)",filename,linenr);
47 194
48/*TO DO */ 195 var = malloc(eovar - sovar + 1);
196 memcpy(var,line + sovar, eovar - sovar);
197 var[eovar-sovar] = 0;
49 198
50#if 0 199 val = atol(line + soval);
51 200
52/* I hate string manipulation in C */ 201 psiconv_config_parse_statement(filename,linenr,var,val,config);
53psiconv_config_t psiconv_config_read(const char *extra_config_files) 202 free(var);
203}
204
205
206void psiconv_config_parse_file(const char *filename, psiconv_config *config)
54{ 207{
55 psiconv_config_t result = default_config;
56 char *path,pathptr;
57 int file; 208 int file,linenr;
58 struct stat stat_buf; 209 struct stat stat_buf;
210 off_t filesize,bytes_left,bytes_read,sol,eol;
211 char *filebuffer,*filebuffer_ptr;
212
213 psiconv_progress(*config,0,0,
214 "Going to access configuration file %s",filename);
215
216 /* Try to open the file; it may fail, if it does not exist for example */
217 if ((file = open(filename,O_RDONLY)) == -1)
218 return;
219
220 /* Read the contents of the file into filebuffer. This may fail */
221 if (fstat(file,&stat_buf)) {
222 if (close(file))
223 psiconv_fatal(*config,0,0,"Configuration file %s: "
224 "Couldn't close file",filename);
225 return;
226 }
227
228 filesize = stat_buf.st_size;
229 if (!(filebuffer = malloc(filesize + 1)))
230 psiconv_fatal(*config,0,0,"Configuration file %s: "
231 "Out of memory error",filename);
232 filebuffer_ptr = filebuffer;
233 bytes_left = filesize;
234 bytes_read = 1; /* Dummy for the first time through the loop */
235 while ((bytes_read > 0) && bytes_left) {
236 bytes_read = read(file,filebuffer_ptr,bytes_left);
237 if (bytes_read > 0) {
238 filebuffer_ptr += bytes_read;
239 bytes_left -= bytes_read;
240 }
241 }
242
243 /* On NFS, the first read may fail and this is not fatal */
244 if (bytes_left && (bytes_left != filesize)) {
245 psiconv_fatal(*config,0,0,"Configuration file %s: "
246 "Couldn't read file into memory",filename);
247 }
248
249 if (close(file))
250 psiconv_fatal(*config,0,0,"Configuration file %s: "
251 "Couldn't close file",filename);
252
253 psiconv_progress(*config,0,0,
254 "Going to parse configuration file %s: ",filename);
255 /* Now we walk through the file to isolate lines */
256 linenr = 0;
257 sol = 0;
258
259 while (sol < filesize) {
260 linenr ++;
261 eol = sol;
262 while ((eol < filesize) && (filebuffer[eol] != 13) &&
263 (filebuffer[eol] != 10) && (filebuffer[eol] != 0))
264 eol ++;
265
266 if ((eol < filesize) && (filebuffer[eol] == 0))
267 psiconv_fatal(*config,0,0,"Configuration file %s, line %d: "
268 "Unexpected character \000 found",filename,linenr);
269 if ((eol < filesize + 1) &&
270 (((filebuffer[eol] == 13) && (filebuffer[eol+1] == 10)) ||
271 ((filebuffer[eol] == 10) && (filebuffer[eol+1] == 13)))) {
272 filebuffer[eol] = 0;
273 eol ++;
274 }
275 filebuffer[eol] = 0;
276 psiconv_config_parse_line(filename,linenr,filebuffer + sol,config);
277 sol = eol+1;
278 }
279 free(filebuffer);
280}
281
282void psiconv_config_read(const char *extra_config_files,
283 psiconv_config *config)
284{
285 char *path,*pathptr,*filename,*filename_old;
286 const char *home;
287 int filename_len;
59 288
60 /* Make path be the complete search path, colon separated */ 289 /* Make path be the complete search path, colon separated */
61 if (extra_config_files && strlen(extra_config_files)) { 290 if (extra_config_files && strlen(extra_config_files)) {
62 path = malloc(strlen(CONFIGURATION_SEARCH_PATH) + 291 path = malloc(strlen(CONFIGURATION_SEARCH_PATH) +
63 strlen(extra_config_files) + 2); 292 strlen(extra_config_files) + 2);
64 strcpy(path,CONFIGURATION_SEARCH_PATH); 293 strcpy(path,CONFIGURATION_SEARCH_PATH);
65 strcat(path,":"); 294 strcat(path,":");
66 strcat(path,extra_config_files) 295 strcat(path,extra_config_files);
67 } else { 296 } else {
68 path = strdup(CONFIGURATION_SEARCH_PATH) 297 path = strdup(CONFIGURATION_SEARCH_PATH);
69 } 298 }
70 299
71 pathptr = path; 300 pathptr = path;
72 while (strlen(pathptr)) { 301 while (strlen(pathptr)) {
73 /* Isolate the next filename */ 302 /* Isolate the next filename */
74 filename_len = (path - index(':',path)) || strlen(path); 303 filename_len = (index(pathptr,':')?(index(pathptr,':') - pathptr):
304 strlen(pathptr));
75 filename = malloc(filename_len + 1); 305 filename = malloc(filename_len + 1);
76 filename = strncpy(filename,path,filename_len); 306 filename = strncpy(filename,pathptr,filename_len);
77 filename[filename_len + 1] = 0; 307 filename[filename_len] = 0;
78 pathptr += filename_len; 308 pathptr += filename_len;
79 if (strlen(pathptr)) 309 if (strlen(pathptr))
80 pathptr ++; 310 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;
85 311
86 /* Read the contents of the file into filebuffer */ 312 /* Do ~ substitution */
87 if (!fstat(file,&stat_buf)) 313 if ((filename[0] == '~') && ((filename[1] == '/') || filename[1] == 0)) {
88 continue; 314 home = getenv("HOME");
89 filesize = stat_buf.off_t; 315 if (home) {
90 filebuffer = malloc(filesize + 1); 316 filename_old = filename;
91 filebuffer_ptr = filebuffer; 317 filename = malloc(strlen(filename_old) + strlen(home));
92 bytes_left = filesize; 318 strcpy(filename,home);
93 bytes_read = 1 /* Dummy for the first time through the loop */ 319 strcpy(filename + strlen(filename),filename_old+1);
94 while ((bytes_read > 0) && bytes_left) { 320 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 } 321 }
100 } 322 }
101 if (bytes_left) 323
102 continue; 324 psiconv_config_parse_file(filename,config);
103 325 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 } 326 }
112} 327}
113
114#endif
115
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