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1 | /************************************************************************ | |
2 | * IRC - Internet Relay Chat, tools/convertklines.c | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 1, or (at your option) | |
7 | * any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <ctype.h> | |
23 | #include <string.h> | |
24 | ||
25 | #define BUFSIZE 512 | |
26 | ||
27 | static void ConvertConf(FILE* file,FILE *outkline, FILE *outdline); | |
28 | static void usage(void); | |
29 | static char *getfield(char *); | |
30 | static void ReplaceQuotes(char *out, char *in); | |
31 | static void parse(FILE *outkline, FILE *outdline, char *in); | |
32 | ||
33 | int main(int argc,char *argv[]) | |
34 | { | |
35 | FILE *in; | |
36 | FILE *outkline; | |
37 | FILE *outdline; | |
38 | ||
39 | if(argc < 4) | |
40 | usage(); | |
41 | ||
42 | if (( in = fopen(argv[1],"r")) == NULL ) | |
43 | { | |
44 | fprintf(stderr,"Can't open %s for reading\n", argv[1]); | |
45 | usage(); | |
46 | } | |
47 | ||
48 | if (( outkline = fopen(argv[2],"w")) == NULL ) | |
49 | { | |
50 | fprintf(stderr,"Can't open %s for writing\n", argv[2]); | |
51 | usage(); | |
52 | } | |
53 | ||
54 | if(( outdline = fopen(argv[3], "w")) == NULL ) | |
55 | { | |
56 | fprintf(stderr, "Can't open %s for writing\n", argv[3]); | |
57 | usage(); | |
58 | } | |
59 | ||
60 | ConvertConf(in, outkline, outdline); | |
61 | ||
62 | fprintf(stderr, "The kline file has been converted and should be renamed to\n"); | |
63 | fprintf(stderr, "the config.h options (normally kline.conf and dline.conf) and\n"); | |
64 | fprintf(stderr, "placed in your etc/ dir\n"); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static void usage() | |
69 | { | |
70 | fprintf(stderr, "klines and dlines now go in separate files:\n"); | |
71 | fprintf(stderr,"convertklines kline.conf.old kline.conf.new dline.conf.new\n"); | |
72 | exit(-1); | |
73 | } | |
74 | ||
75 | ||
76 | /* | |
77 | * ConvertConf() | |
78 | * Read configuration file. | |
79 | * | |
80 | * | |
81 | * inputs - FILE* to config file to convert | |
82 | * - FILE* to output for new klines | |
83 | * - FILE* to output for new dlines | |
84 | * outputs - -1 if the file cannot be opened | |
85 | * - 0 otherwise | |
86 | */ | |
87 | ||
88 | static void ConvertConf(FILE* file, FILE *outkline, FILE *outdline) | |
89 | { | |
90 | char line[BUFSIZE]; | |
91 | char quotedLine[BUFSIZE]; | |
92 | char* p; | |
93 | ||
94 | while (fgets(line, sizeof(line), file)) | |
95 | { | |
96 | if ((p = strchr(line, '\n'))) | |
97 | *p = '\0'; | |
98 | ||
99 | ReplaceQuotes(quotedLine,line); | |
100 | ||
101 | if (!*quotedLine || quotedLine[0] == '#' || quotedLine[0] == '\n' || | |
102 | quotedLine[0] == ' ' || quotedLine[0] == '\t') | |
103 | continue; | |
104 | ||
105 | /* Could we test if it's conf line at all? -Vesa */ | |
106 | if (quotedLine[1] == ':') | |
107 | { | |
108 | parse(outkline, outdline, quotedLine); | |
109 | } | |
110 | } | |
111 | ||
112 | fclose(file); | |
113 | } | |
114 | ||
115 | /* | |
116 | * ReplaceQuotes | |
117 | * Inputs - input line to quote | |
118 | * Output - quoted line | |
119 | * Side Effects - All quoted chars in input are replaced | |
120 | * with quoted values in output, # chars replaced with '\0' | |
121 | * otherwise input is copied to output. | |
122 | */ | |
123 | static void ReplaceQuotes(char* quotedLine,char *inputLine) | |
124 | { | |
125 | char *in; | |
126 | char *out; | |
127 | static char quotes[] = { | |
128 | 0, /* */ | |
129 | 0, /* a */ | |
130 | '\b', /* b */ | |
131 | 0, /* c */ | |
132 | 0, /* d */ | |
133 | 0, /* e */ | |
134 | '\f', /* f */ | |
135 | 0, /* g */ | |
136 | 0, /* h */ | |
137 | 0, /* i */ | |
138 | 0, /* j */ | |
139 | 0, /* k */ | |
140 | 0, /* l */ | |
141 | 0, /* m */ | |
142 | '\n', /* n */ | |
143 | 0, /* o */ | |
144 | 0, /* p */ | |
145 | 0, /* q */ | |
146 | '\r', /* r */ | |
147 | 0, /* s */ | |
148 | '\t', /* t */ | |
149 | 0, /* u */ | |
150 | '\v', /* v */ | |
151 | 0, /* w */ | |
152 | 0, /* x */ | |
153 | 0, /* y */ | |
154 | 0, /* z */ | |
155 | 0,0,0,0,0,0 | |
156 | }; | |
157 | ||
158 | /* | |
159 | * Do quoting of characters and # detection. | |
160 | */ | |
161 | for (out = quotedLine,in = inputLine; *in; out++, in++) | |
162 | { | |
163 | if (*in == '\\') | |
164 | { | |
165 | in++; | |
166 | if(*in == '\\') | |
167 | *out = '\\'; | |
168 | else if(*in == '#') | |
169 | *out = '#'; | |
170 | else | |
171 | *out = quotes[ (unsigned int) (*in & 0x1F) ]; | |
172 | } | |
173 | else if (*in == '#') | |
174 | { | |
175 | *out = '\0'; | |
176 | return; | |
177 | } | |
178 | else | |
179 | *out = *in; | |
180 | } | |
181 | *out = '\0'; | |
182 | } | |
183 | ||
184 | /* | |
185 | * parse() | |
186 | * Inputs - pointer to line to parse | |
187 | * - pointer to output to write | |
188 | * Output - | |
189 | * Side Effects - Parse one old style conf line. | |
190 | */ | |
191 | ||
192 | static void parse(FILE *outkline, FILE *outdline, char* line) | |
193 | { | |
194 | char conf_letter; | |
195 | char *tmp; | |
196 | const char *user_field = NULL; | |
197 | const char *passwd_field = NULL; | |
198 | const char *host_field = NULL; | |
199 | const char *operpasswd_field = NULL; | |
200 | ||
201 | tmp = getfield(line); | |
202 | ||
203 | conf_letter = *tmp; | |
204 | ||
205 | for (;;) /* Fake loop, that I can use break here --msa */ | |
206 | { | |
207 | /* host field */ | |
208 | if ((host_field = getfield(NULL)) == NULL) | |
209 | return; | |
210 | ||
211 | /* pass field */ | |
212 | if ((passwd_field = getfield(NULL)) == NULL) | |
213 | break; | |
214 | else | |
215 | { | |
216 | /* if theres a password, try splitting the operreason out */ | |
217 | char *p; | |
218 | ||
219 | if((p = strchr(passwd_field, '|'))) | |
220 | { | |
221 | *p++ = '\0'; | |
222 | operpasswd_field = p; | |
223 | } | |
224 | else | |
225 | operpasswd_field = ""; | |
226 | } | |
227 | ||
228 | /* user field */ | |
229 | if ((user_field = getfield(NULL)) == NULL) | |
230 | break; | |
231 | ||
232 | /* what could possibly be after a userfield? */ | |
233 | break; | |
234 | } | |
235 | ||
236 | if (!passwd_field) | |
237 | { | |
238 | passwd_field = ""; | |
239 | operpasswd_field = ""; | |
240 | } | |
241 | ||
242 | if (!user_field) | |
243 | user_field = ""; | |
244 | ||
245 | switch( conf_letter ) | |
246 | { | |
247 | case 'd': | |
248 | fprintf(stderr, "exempt in old file, ignoring.\n"); | |
249 | break; | |
250 | ||
251 | case 'D': /* Deny lines (immediate refusal) */ | |
252 | if(host_field && passwd_field) | |
253 | fprintf(outdline, "\"%s\",\"%s\",\"%s\",\"\",\"Unknown\",0\n", | |
254 | host_field, passwd_field, operpasswd_field); | |
255 | break; | |
256 | ||
257 | case 'K': /* Kill user line on irc.conf */ | |
258 | case 'k': | |
259 | if(host_field && passwd_field && user_field) | |
260 | fprintf(outkline, "\"%s\",\"%s\",\"%s\",\"%s\",\"\",\"Unknown\",0\n", | |
261 | user_field, host_field, passwd_field, operpasswd_field); | |
262 | break; | |
263 | ||
264 | default: | |
265 | fprintf(stderr, "Error in config file: %s", line); | |
266 | break; | |
267 | } | |
268 | } | |
269 | ||
270 | ||
271 | /* | |
272 | * field breakup for ircd.conf file. | |
273 | */ | |
274 | static char *getfield(char *newline) | |
275 | { | |
276 | static char *line = NULL; | |
277 | char *end, *field; | |
278 | ||
279 | if (newline) | |
280 | line = newline; | |
281 | ||
282 | if (line == NULL) | |
283 | { | |
284 | fprintf(stderr, "returned null!\n"); | |
285 | return NULL; | |
286 | } | |
287 | ||
288 | field = line; | |
289 | ||
290 | if ((end = strchr(line,':')) == NULL) | |
291 | { | |
292 | line = NULL; | |
293 | if ((end = strchr(field,'\n')) == NULL) | |
294 | end = field + strlen(field); | |
295 | } | |
296 | else | |
297 | line = end + 1; | |
298 | ||
299 | *end = '\0'; | |
300 | ||
301 | return field; | |
302 | } | |
303 | ||
304 |