1 |
/* |
2 |
* This file is part of uudeview, the simple and friendly multi-part multi- |
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* file uudecoder program (c) 1994-2001 by Frank Pilhofer. The author may |
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* be contacted at fp@fpx.de |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
9 |
* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#ifdef SYSTEM_WINDLL |
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#include <windows.h> |
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#endif |
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#ifdef SYSTEM_OS2 |
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#include <os2.h> |
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#endif |
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|
28 |
/* |
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* uucheck.c |
30 |
* |
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* Various checking and processing of one input part |
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**/ |
33 |
|
34 |
#include <stdio.h> |
35 |
#include <ctype.h> |
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#include <stdlib.h> |
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#include <string.h> |
38 |
|
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#ifdef HAVE_UNISTD_H |
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#include <unistd.h> |
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#endif |
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|
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#include <uudeview.h> |
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#include <uuint.h> |
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#include <fptools.h> |
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#include <uustring.h> |
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|
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/* |
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* Arbitrary number. This is the maximum number of part numbers we |
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* store for our have-parts and missing-parts lists |
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*/ |
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|
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#define MAXPLIST 256 |
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|
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|
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/* |
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* forward declarations of local functions |
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*/ |
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|
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static char * UUGetFileName (char *, char *, char *); |
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static int UUGetPartNo (char *, char **, char **); |
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|
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/* |
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* State of Scanner function and PreProcessPart |
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*/ |
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|
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int lastvalid, lastenc, nofnum; |
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char *uucheck_lastname; |
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char *uucheck_tempname; |
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static int lastpart = 0; |
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static char *nofname = "UNKNOWN"; |
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|
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/* |
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* special characters we allow an unquoted filename to have |
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*/ |
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|
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static char *fnchars = "._-~!"; |
78 |
|
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/* |
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* Policy for extracting a part number from the subject line. |
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* usually, look for part numbers in () brackets first, then in [] |
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*/ |
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|
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static char *brackchr[] = { |
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"()[]", "[]()" |
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}; |
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|
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/* |
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* Extract a filename from the subject line. We need anything to identify |
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* the name of the program for sorting. If a nice filename cannot be found, |
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* the subject line itself is used |
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* ptonum is, if not NULL, a pointer to the part number in the subject line, |
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* so that it won't be used as filename. |
94 |
**/ |
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static char * |
96 |
UUGetFileName (char *subject, char *ptonum, char *ptonend) |
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{ |
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char *ptr = subject, *iter, *result, *part; |
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int count, length=0, alflag=0; |
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|
101 |
/* |
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* If this file has no subject line, assume it is the next part of the |
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* previous file (this is done in UUPreProcessPart) |
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**/ |
105 |
|
106 |
if (subject == NULL) |
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return NULL; |
108 |
|
109 |
/* |
110 |
* If the subject starts with 'Re', it is ignored |
111 |
* REPosts or RETries are not ignored! |
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**/ |
113 |
|
114 |
if (uu_ignreply && |
115 |
(subject[0] == 'R' || subject[0] == 'r') && |
116 |
(subject[1] == 'E' || subject[1] == 'e') && |
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(subject[2] == ':' || subject[2] == ' ')) { |
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return uu_FileNameCallback ? uu_FileNameCallback(uu_FNCBArg, subject, NULL) : NULL; |
119 |
} |
120 |
|
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/* |
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* Ignore a "Repost" prefix of the subject line. We don't want to get |
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* a file named "Repost" :-) |
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**/ |
125 |
|
126 |
if (FP_strnicmp (subject, "repost", 6) == 0) |
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subject += 6; |
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if (FP_strnicmp (subject, "re:", 3) == 0) |
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subject += 3; |
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|
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while (*subject == ' ' || *subject == ':') subject++; |
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|
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part = FP_stristr (subject, "part"); |
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if (part == subject) { |
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subject += 4; |
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while (*subject == ' ') subject++; |
137 |
} |
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|
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/* |
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* If the file was encoded by uuenview, then the filename is enclosed |
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* in [brackets]. But check what's inside these bracket's, try not to |
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* fall for something other than a filename |
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*/ |
144 |
|
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ptr = subject; |
146 |
while ((iter = strchr (ptr, '[')) != NULL) { |
147 |
if (strchr (iter, ']') == NULL) { |
148 |
ptr = iter + 1; |
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continue; |
150 |
} |
151 |
iter++; |
152 |
while (isspace (*iter)) |
153 |
iter++; |
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count = length = alflag = 0; |
155 |
while (iter[count] && |
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(isalnum (iter[count]) || strchr (fnchars, iter[count])!=NULL)) { |
157 |
if (isalpha (iter[count])) |
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alflag++; |
159 |
count++; |
160 |
} |
161 |
if (count<4 || alflag==0) { |
162 |
ptr = iter + 1; |
163 |
continue; |
164 |
} |
165 |
length = count; |
166 |
while (isspace (iter[count])) |
167 |
count++; |
168 |
if (iter[count] == ']') { |
169 |
ptr = iter; |
170 |
break; |
171 |
} |
172 |
length = 0; |
173 |
ptr = iter + 1; |
174 |
} |
175 |
|
176 |
/* |
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* new filename detection routine, fits mostly for files by ftp-by-email |
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* servers that create subject lines with ftp.host.address:/full/path/file |
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* on them. We look for slashes and take the filename from after the last |
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* one ... or at least we try to. |
181 |
*/ |
182 |
|
183 |
if (length == 0) { |
184 |
ptr = subject; |
185 |
while ((iter = strchr (ptr, '/')) != NULL) { |
186 |
if (iter >= ptonum && iter <= ptonend) { |
187 |
ptr = iter + 1; |
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continue; |
189 |
} |
190 |
count = length = 0; |
191 |
iter++; |
192 |
while (iter[count] && |
193 |
(isalnum(iter[count])||strchr(fnchars, iter[count])!=NULL)) |
194 |
count++; |
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if (iter[count] == ' ' && length > 4) { |
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length = count; |
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break; |
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} |
199 |
ptr = iter + ((count)?count:1); |
200 |
} |
201 |
} |
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|
203 |
/* |
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* Look for two alphanumeric strings separated by a '.' |
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* (That's most likely a filename) |
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**/ |
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|
208 |
if (length == 0) { |
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ptr = subject; |
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/* #warning another experimental change */ |
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/*while (*ptr && *ptr != 0x0a && *ptr != 0x0d && ptr != part) {*/ |
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while (*ptr && *ptr != 0x0a && *ptr != 0x0d) { |
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iter = ptr; |
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count = length = alflag = 0; |
215 |
|
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if (FP_strnicmp (ptr, "ftp", 3) == 0) { |
217 |
/* hey, that's an ftp address */ |
218 |
while (isalpha (*ptr) || isdigit (*ptr) || *ptr == '.') |
219 |
ptr++; |
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continue; |
221 |
} |
222 |
|
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while ((isalnum(*iter)||strchr(fnchars, *iter)!=NULL|| |
224 |
*iter=='/') && *iter && iter != ptonum && *iter != '.') { |
225 |
if (isalpha (*iter)) |
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alflag = 1; |
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|
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count++; iter++; |
229 |
} |
230 |
if (*iter == '\0' || iter == ptonum) { |
231 |
if (iter == ptonum) |
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ptr = ptonend; |
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else |
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ptr = iter; |
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|
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length = 0; |
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continue; |
238 |
} |
239 |
|
240 |
/* #warning multi-part change experimental, make pluggable */ |
241 |
/* if (*iter++ != '.' || count > 32 || alflag == 0) { */ |
242 |
if (*iter++ != '.' || count > 32) { |
243 |
ptr = iter; |
244 |
length = 0; |
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continue; |
246 |
} |
247 |
|
248 |
/* a dot followed by sth. unesthetically doesn't look right */ |
249 |
if (*iter < '0') { |
250 |
ptr = iter + 1; |
251 |
length = 0; |
252 |
continue; |
253 |
} |
254 |
|
255 |
if (FP_strnicmp (iter, "edu", 3) == 0 || |
256 |
FP_strnicmp (iter, "gov", 3) == 0) { |
257 |
/* hey, that's an ftp address */ |
258 |
while (isalpha (*iter) || isdigit (*iter) || *iter == '.') |
259 |
iter++; |
260 |
ptr = iter; |
261 |
length = 0; |
262 |
continue; |
263 |
} |
264 |
|
265 |
length += count + 1; |
266 |
count = 0; |
267 |
|
268 |
while ((isalnum(iter[count])||strchr(fnchars, iter[count])!=NULL|| |
269 |
iter[count]=='/') && iter[count] && iter[count] != '.') |
270 |
count++; |
271 |
|
272 |
if (iter[count]==':' && iter[count+1]=='/') { |
273 |
/* looks like stuff from a mail server */ |
274 |
ptr = iter + 1; |
275 |
length = 0; |
276 |
continue; |
277 |
} |
278 |
|
279 |
if (count > 8 || iter == ptonum) { |
280 |
ptr = iter; |
281 |
length = 0; |
282 |
continue; |
283 |
} |
284 |
|
285 |
if (iter[count] != '.') { |
286 |
length += count; |
287 |
break; |
288 |
} |
289 |
|
290 |
while (iter[count] && |
291 |
(isalnum(iter[count])||strchr(fnchars, iter[count])!=NULL|| |
292 |
iter[count]=='/')) |
293 |
count++; |
294 |
|
295 |
if (iter[count]==':' && iter[count+1]=='/') { |
296 |
/* looks like stuff from a mail server */ |
297 |
ptr = iter + 1; |
298 |
length = 0; |
299 |
continue; |
300 |
} |
301 |
|
302 |
if (count < 12 && iter != ptonum) { |
303 |
length += count; |
304 |
break; |
305 |
} |
306 |
|
307 |
ptr = iter; |
308 |
length = 0; |
309 |
} |
310 |
} |
311 |
|
312 |
if (length == 0) { /* No filename found, use subject line for ident */ |
313 |
ptr = subject; |
314 |
|
315 |
while (*ptr && !isalpha (*ptr)) |
316 |
ptr++; |
317 |
|
318 |
while ((isalnum(ptr[length])||strchr(fnchars,ptr[length])!=NULL|| |
319 |
ptr[length] == '/') && |
320 |
ptr[length] && ptr+length!=part && ptr+length!=ptonum) |
321 |
length++; |
322 |
|
323 |
if (length) { |
324 |
if (ptr[length] == '\0' || ptr[length] == 0x0a || ptr[length] == 0x0d) { |
325 |
length--; |
326 |
|
327 |
/* |
328 |
* I used to cut off digits from the end of the string, but |
329 |
* let's try to live without. We want to distinguish |
330 |
* DUTCH951 from DUTCH952 |
331 |
* |
332 |
* while ((ptr[length] == ' ' || isdigit (ptr[length])) && length > 0) |
333 |
* length--; |
334 |
*/ |
335 |
} |
336 |
else { |
337 |
length--; |
338 |
|
339 |
while (ptr[length] == ' ' && length > 0) |
340 |
length--; |
341 |
} |
342 |
length++; |
343 |
} |
344 |
} |
345 |
|
346 |
if (length == 0) { /* Still found nothing? We need *something*! */ |
347 |
ptr = nofname; |
348 |
length = strlen (nofname); |
349 |
} |
350 |
|
351 |
if ((result = (char *) malloc (length + 1)) == NULL) { |
352 |
UUMessage (UUMSG_ERROR, uustring (S_OUT_OF_MEMORY), length+1); |
353 |
return NULL; |
354 |
} |
355 |
|
356 |
memcpy (result, ptr, length); |
357 |
result[length] = '\0'; |
358 |
|
359 |
return uu_FileNameCallback ? uu_FileNameCallback(uu_FNCBArg, subject, result) : result; |
360 |
} |
361 |
|
362 |
/* |
363 |
* Extract the Part Number from the subject line. |
364 |
* We look first for numbers in (#/#)'s, then for numbers in [#/#]'s |
365 |
* and then for digits that are not part of a string. |
366 |
* If we cannot find anything, assume it is the next part of the |
367 |
* previous file. |
368 |
* If we find a part number, we put a pointer to it in *where. This is |
369 |
* done so that the UUGetFileName function doesn't accidentally use the |
370 |
* part number as the file name. *whend points to the end of this part |
371 |
* number. |
372 |
**/ |
373 |
|
374 |
static int |
375 |
UUGetPartNo (char *subject, char **where, char **whend) |
376 |
{ |
377 |
char *ptr = subject, *iter, *delim, bdel[2]=" "; |
378 |
int count, length=0, bpc; |
379 |
|
380 |
*where = NULL; bdel[0] = ' '; |
381 |
*whend = NULL; bdel[1] = '\0'; |
382 |
|
383 |
iter = NULL; |
384 |
delim = ""; |
385 |
|
386 |
if (subject == NULL) |
387 |
return -1; |
388 |
|
389 |
if (uu_ignreply && |
390 |
(subject[0] == 'R' || subject[0] == 'r') && /* Ignore replies, but not */ |
391 |
(subject[1] == 'E' || subject[1] == 'e') && /* reposts */ |
392 |
(subject[2] == ':' || subject[2] == ' ')) |
393 |
return -2; |
394 |
|
395 |
/* |
396 |
* First try numbers in () or [] (or vice versa, according to bracket |
397 |
* policy) |
398 |
* For multiple occurences, give priority to the bracket with a slash |
399 |
* or the last one, whichever is "found" first. |
400 |
*/ |
401 |
|
402 |
for (bpc=0, length=0; brackchr[uu_bracket_policy][bpc]; bpc+=2) { |
403 |
iter = subject; |
404 |
length = 0; |
405 |
while ((iter = strchr (iter, brackchr[uu_bracket_policy][bpc])) != NULL) { |
406 |
int plength; |
407 |
|
408 |
count = 0; iter++; |
409 |
|
410 |
while (*iter == ' ' || *iter == '#') |
411 |
iter++; |
412 |
|
413 |
if (!isdigit (*iter)) { |
414 |
continue; |
415 |
} |
416 |
while (isdigit (iter[count])) |
417 |
count++; |
418 |
|
419 |
if (iter[count] == '\0') { |
420 |
iter += count; |
421 |
break; |
422 |
} |
423 |
|
424 |
plength = count; |
425 |
|
426 |
if (iter[count] == brackchr[uu_bracket_policy][bpc+1]) { |
427 |
*where = iter; |
428 |
bdel[0] = brackchr[uu_bracket_policy][bpc+1]; |
429 |
delim = bdel; |
430 |
length = plength; |
431 |
continue; |
432 |
} |
433 |
|
434 |
while (iter[count] == ' ' || iter[count] == '#' || |
435 |
iter[count] == '/' || iter[count] == '\\') count++; |
436 |
|
437 |
if (FP_strnicmp (iter + count, "of", 2) == 0) |
438 |
count += 2; |
439 |
|
440 |
while (iter[count] == ' ') count++; |
441 |
while (isdigit (iter[count])) count++; |
442 |
while (iter[count] == ' ') count++; |
443 |
|
444 |
if (iter[count] == brackchr[uu_bracket_policy][bpc+1]) { |
445 |
*where = iter; |
446 |
bdel[0] = brackchr[uu_bracket_policy][bpc+1]; |
447 |
delim = bdel; |
448 |
length = plength; |
449 |
break; |
450 |
} |
451 |
} |
452 |
if (length) |
453 |
{ |
454 |
iter = *where; /* strange control flow, but less changes == less hassle */ |
455 |
break; |
456 |
} |
457 |
} |
458 |
|
459 |
/* |
460 |
* look for the string "part " followed by a number |
461 |
*/ |
462 |
|
463 |
if (length == 0) { |
464 |
if ((iter = FP_stristr (subject, "part ")) != NULL) { |
465 |
iter += 5; |
466 |
|
467 |
while (isspace (*iter) || *iter == '.' || *iter == '-') |
468 |
iter++; |
469 |
|
470 |
while (isdigit (iter[length])) |
471 |
length++; |
472 |
|
473 |
if (length == 0) { |
474 |
if (FP_strnicmp (iter, "one", 3) == 0) length = 1; |
475 |
else if (FP_strnicmp (iter, "two", 3) == 0) length = 2; |
476 |
else if (FP_strnicmp (iter, "three", 5) == 0) length = 3; |
477 |
else if (FP_strnicmp (iter, "four", 4) == 0) length = 4; |
478 |
else if (FP_strnicmp (iter, "five", 4) == 0) length = 5; |
479 |
else if (FP_strnicmp (iter, "six", 3) == 0) length = 6; |
480 |
else if (FP_strnicmp (iter, "seven", 5) == 0) length = 7; |
481 |
else if (FP_strnicmp (iter, "eight", 5) == 0) length = 8; |
482 |
else if (FP_strnicmp (iter, "nine", 4) == 0) length = 9; |
483 |
else if (FP_strnicmp (iter, "ten", 3) == 0) length = 10; |
484 |
|
485 |
if (length && (*whend = strchr (iter, ' '))) { |
486 |
*where = iter; |
487 |
return length; |
488 |
} |
489 |
else |
490 |
length = 0; |
491 |
} |
492 |
else { |
493 |
*where = iter; |
494 |
delim = "of"; |
495 |
} |
496 |
} |
497 |
} |
498 |
|
499 |
/* |
500 |
* look for the string "part" followed by a number |
501 |
*/ |
502 |
|
503 |
if (length == 0) { |
504 |
if ((iter = FP_stristr (subject, "part")) != NULL) { |
505 |
iter += 4; |
506 |
|
507 |
while (isspace (*iter) || *iter == '.' || *iter == '-') |
508 |
iter++; |
509 |
|
510 |
while (isdigit (iter[length])) |
511 |
length++; |
512 |
|
513 |
if (length == 0) { |
514 |
if (FP_strnicmp (iter, "one", 3) == 0) length = 1; |
515 |
else if (FP_strnicmp (iter, "two", 3) == 0) length = 2; |
516 |
else if (FP_strnicmp (iter, "three", 5) == 0) length = 3; |
517 |
else if (FP_strnicmp (iter, "four", 4) == 0) length = 4; |
518 |
else if (FP_strnicmp (iter, "five", 4) == 0) length = 5; |
519 |
else if (FP_strnicmp (iter, "six", 3) == 0) length = 6; |
520 |
else if (FP_strnicmp (iter, "seven", 5) == 0) length = 7; |
521 |
else if (FP_strnicmp (iter, "eight", 5) == 0) length = 8; |
522 |
else if (FP_strnicmp (iter, "nine", 4) == 0) length = 9; |
523 |
else if (FP_strnicmp (iter, "ten", 3) == 0) length = 10; |
524 |
|
525 |
if (length && (*whend = strchr (iter, ' '))) { |
526 |
*where = iter; |
527 |
return length; |
528 |
} |
529 |
else |
530 |
length = 0; |
531 |
} |
532 |
else { |
533 |
*where = iter; |
534 |
delim = "of"; |
535 |
} |
536 |
} |
537 |
} |
538 |
|
539 |
/* |
540 |
* look for [0-9]* "of" [0-9]* |
541 |
*/ |
542 |
|
543 |
if (length == 0) { |
544 |
if ((iter = FP_strirstr (subject, "of")) != NULL) { |
545 |
while (iter>subject && isspace (*(iter-1))) |
546 |
iter--; |
547 |
if (isdigit(*(iter-1))) { |
548 |
while (iter>subject && isdigit (*(iter-1))) |
549 |
iter--; |
550 |
if (!isdigit (*iter) && !isalpha (*iter) && *iter != '.') |
551 |
iter++; |
552 |
ptr = iter; |
553 |
|
554 |
while (isdigit (*ptr)) { |
555 |
ptr++; length++; |
556 |
} |
557 |
*where = iter; |
558 |
delim = "of"; |
559 |
} |
560 |
} |
561 |
} |
562 |
|
563 |
/* |
564 |
* look for whitespace-separated (or '/'-separated) digits |
565 |
*/ |
566 |
|
567 |
if (length == 0) { |
568 |
ptr = subject; |
569 |
|
570 |
while (*ptr && length==0) { |
571 |
while (*ptr && !isdigit (*ptr)) |
572 |
ptr++; |
573 |
if (isdigit (*ptr) && (ptr==subject || *ptr==' ' || *ptr=='/')) { |
574 |
while (isdigit (ptr[length])) |
575 |
length++; |
576 |
if (ptr[length]!='\0' && ptr[length]!=' ' && ptr[length]!='/') { |
577 |
ptr += length; |
578 |
length = 0; |
579 |
} |
580 |
else { |
581 |
iter = ptr; |
582 |
bdel[0] = ptr[length]; |
583 |
delim = bdel; |
584 |
} |
585 |
} |
586 |
else { |
587 |
while (isdigit (*ptr)) |
588 |
ptr++; |
589 |
} |
590 |
} |
591 |
} |
592 |
|
593 |
/* |
594 |
* look for _any_ digits -- currently disabled, because it also fell |
595 |
* for "part numbers" in file names |
596 |
*/ |
597 |
|
598 |
#if 0 |
599 |
if (length == 0) { |
600 |
count = strlen(subject) - 1; |
601 |
ptr = subject; |
602 |
|
603 |
while (count > 0) { |
604 |
if (!isdigit(ptr[count])||isalpha(ptr[count+1])||ptr[count+1] == '.') { |
605 |
count--; |
606 |
continue; |
607 |
} |
608 |
length = 0; |
609 |
|
610 |
while (count >= 0 && isdigit (ptr[count])) { |
611 |
count--; length++; |
612 |
} |
613 |
if (count>=0 && ((isalpha (ptr[count]) && |
614 |
(ptr[count] != 's' || ptr[count+1] != 't') && |
615 |
(ptr[count] != 'n' || ptr[count+1] != 'd')) || |
616 |
ptr[count] == '/' || ptr[count] == '.' || |
617 |
ptr[count] == '-' || ptr[count] == '_')) { |
618 |
length = 0; |
619 |
continue; |
620 |
} |
621 |
count++; |
622 |
iter = ptr + count; |
623 |
|
624 |
if (length > 4) { |
625 |
length = 0; |
626 |
continue; |
627 |
} |
628 |
*where = iter; |
629 |
delim = "of"; |
630 |
break; |
631 |
} |
632 |
} |
633 |
#endif |
634 |
|
635 |
/* |
636 |
* look for part numbering as string |
637 |
*/ |
638 |
|
639 |
if (length == 0) { |
640 |
/* |
641 |
* some people use the strangest things, including spelling mistakes :-) |
642 |
*/ |
643 |
if ((iter = FP_stristr (subject, "first")) != NULL) length = 1; |
644 |
else if ((iter = FP_stristr (subject, "second")) != NULL) length = 2; |
645 |
else if ((iter = FP_stristr (subject, "third")) != NULL) length = 3; |
646 |
else if ((iter = FP_stristr (subject, "forth")) != NULL) length = 4; |
647 |
else if ((iter = FP_stristr (subject, "fourth")) != NULL) length = 4; |
648 |
else if ((iter = FP_stristr (subject, "fifth")) != NULL) length = 5; |
649 |
else if ((iter = FP_stristr (subject, "sixth")) != NULL) length = 6; |
650 |
else if ((iter = FP_stristr (subject, "seventh")) != NULL) length = 7; |
651 |
else if ((iter = FP_stristr (subject, "eigth")) != NULL) length = 8; |
652 |
else if ((iter = FP_stristr (subject, "eighth")) != NULL) length = 8; |
653 |
else if ((iter = FP_stristr (subject, "nineth")) != NULL) length = 9; |
654 |
else if ((iter = FP_stristr (subject, "ninth")) != NULL) length = 9; |
655 |
else if ((iter = FP_stristr (subject, "tenth")) != NULL) length = 10; |
656 |
else iter = NULL; |
657 |
|
658 |
if (length && iter && (*whend = strchr (iter, ' '))) { |
659 |
*where = iter; |
660 |
return length; |
661 |
} |
662 |
else |
663 |
length = 0; |
664 |
} |
665 |
|
666 |
if (iter == NULL || length == 0) /* should be equivalent */ |
667 |
return -1; |
668 |
|
669 |
*where = iter; |
670 |
|
671 |
if (delim && delim[0]) { |
672 |
if ((*whend=FP_stristr (iter, delim)) != NULL && (*whend - *where) < 12) { |
673 |
ptr = (*whend += strlen (delim)); |
674 |
|
675 |
while (*ptr == ' ') |
676 |
ptr++; |
677 |
|
678 |
if (isdigit (*ptr)) { |
679 |
*whend = ptr; |
680 |
while (isdigit (**whend)) |
681 |
*whend += 1; |
682 |
} |
683 |
} |
684 |
else { |
685 |
*whend = iter + length; |
686 |
} |
687 |
} |
688 |
else { |
689 |
*whend = iter + length; |
690 |
} |
691 |
|
692 |
return atoi (iter); |
693 |
} |
694 |
|
695 |
/* |
696 |
* Obtain and process some information about the data. |
697 |
**/ |
698 |
|
699 |
uufile * |
700 |
UUPreProcessPart (fileread *data, int *ret) |
701 |
{ |
702 |
char *where, *whend, temp[80], *ptr, *p2; |
703 |
uufile *result; |
704 |
|
705 |
if ((result = (uufile *) malloc (sizeof (uufile))) == NULL) { |
706 |
UUMessage (UUMSG_ERROR, uustring (S_OUT_OF_MEMORY), sizeof (uufile)); |
707 |
*ret = UURET_NOMEM; |
708 |
return NULL; |
709 |
} |
710 |
memset (result, 0, sizeof (uufile)); |
711 |
|
712 |
if (data->partno) { |
713 |
where = whend = NULL; |
714 |
result->partno = data->partno; |
715 |
} |
716 |
else if (uu_dumbness) { |
717 |
result->partno = -1; |
718 |
where = whend = NULL; |
719 |
} |
720 |
else if ((result->partno=UUGetPartNo(data->subject,&where,&whend)) == -2) { |
721 |
*ret = UURET_NODATA; |
722 |
UUkillfile (result); |
723 |
return NULL; |
724 |
} |
725 |
|
726 |
if (data->filename != NULL) { |
727 |
if ((result->filename = FP_strdup (data->filename)) == NULL) { |
728 |
UUMessage (UUMSG_ERROR, uustring (S_OUT_OF_MEMORY), strlen (data->filename)+1); |
729 |
*ret = UURET_NOMEM; |
730 |
UUkillfile (result); |
731 |
return NULL; |
732 |
} |
733 |
} |
734 |
else |
735 |
result->filename = NULL; |
736 |
|
737 |
if (uu_dumbness <= 1) |
738 |
/* trust the yyenc filename if it is long enough */ |
739 |
result->subfname = data->uudet == YENC_ENCODED && data->filename && strlen (data->filename) > 4+1+3 |
740 |
? FP_strdup (data->filename) |
741 |
: UUGetFileName (data->subject, where, whend); |
742 |
else |
743 |
result->subfname = NULL; |
744 |
|
745 |
result->yefilesize = data->yefilesize; |
746 |
result->mimeid = FP_strdup (data->mimeid); |
747 |
result->mimetype = FP_strdup (data->mimetype); |
748 |
|
749 |
if (result->partno == -1 && |
750 |
(data->uudet == PT_ENCODED || data->uudet == QP_ENCODED)) |
751 |
result->partno = 1; |
752 |
|
753 |
if (data->flags & FL_SINGLE) { |
754 |
/* |
755 |
* Don't touch this part. But it should really have a filename |
756 |
*/ |
757 |
if (result->filename == NULL) { |
758 |
sprintf (temp, "%s.%03d", nofname, ++nofnum); |
759 |
result->filename = FP_strdup (temp); |
760 |
} |
761 |
if (result->subfname == NULL) |
762 |
result->subfname = FP_strdup (result->filename); |
763 |
|
764 |
if (result->filename == NULL || |
765 |
result->subfname == NULL) { |
766 |
UUMessage (UUMSG_ERROR, |
767 |
uustring (S_OUT_OF_MEMORY), |
768 |
(result->filename==NULL)? |
769 |
(strlen(temp)+1):(strlen(result->filename)+1)); |
770 |
*ret = UURET_NOMEM; |
771 |
UUkillfile(result); |
772 |
return NULL; |
773 |
} |
774 |
if (result->partno == -1) |
775 |
result->partno = 1; |
776 |
} |
777 |
else if (result->subfname == NULL && data->uudet && |
778 |
(data->begin || result->partno == 1 || |
779 |
(!uu_dumbness && result->partno == -1 && |
780 |
(data->subject != NULL || result->filename != NULL)))) { |
781 |
/* |
782 |
* If it's the first part of something and has some valid data, but |
783 |
* no subject or anything, initialize lastvalid |
784 |
*/ |
785 |
/* |
786 |
* in this case, it really _should_ have a filename somewhere |
787 |
*/ |
788 |
if (result->filename != NULL && *result->filename) |
789 |
result->subfname = FP_strdup (result->filename); |
790 |
else { /* if not, escape to UNKNOWN. We need to fill subfname */ |
791 |
sprintf (temp, "%s.%03d", nofname, ++nofnum); |
792 |
result->subfname = FP_strdup (temp); |
793 |
} |
794 |
/* |
795 |
* in case the strdup failed |
796 |
*/ |
797 |
if (result->subfname == NULL) { |
798 |
UUMessage (UUMSG_ERROR, |
799 |
uustring (S_OUT_OF_MEMORY), |
800 |
(result->filename)? |
801 |
(strlen(result->filename)+1):(strlen(temp)+1)); |
802 |
*ret = UURET_NOMEM; |
803 |
UUkillfile (result); |
804 |
return NULL; |
805 |
} |
806 |
/* |
807 |
* if it's also got an 'end', or is the last part in a MIME-Mail, |
808 |
* then don't set lastvalid |
809 |
*/ |
810 |
if (!data->end && (!data->partno || data->partno != data->maxpno)) { |
811 |
/* |
812 |
* initialize lastvalid |
813 |
*/ |
814 |
lastvalid = 1; |
815 |
lastenc = data->uudet; |
816 |
lastpart = result->partno = 1; |
817 |
FP_strncpy (uucheck_lastname, result->subfname, 256); |
818 |
} |
819 |
else |
820 |
result->partno = 1; |
821 |
} |
822 |
else if (result->subfname == NULL && data->uudet && data->mimeid) { |
823 |
/* |
824 |
* if it's got a file name, use it. Else use the mime-id for identifying |
825 |
* this part, and hope there's no other files encoded in the same message |
826 |
* under the same id. |
827 |
*/ |
828 |
if (result->filename) |
829 |
result->subfname = FP_strdup (result->filename); |
830 |
else |
831 |
result->subfname = FP_strdup (result->mimeid); |
832 |
} |
833 |
else if (result->subfname == NULL && data->uudet) { |
834 |
/* |
835 |
* ff we have lastvalid, use it. Make an exception for |
836 |
* Base64-encoded files. |
837 |
*/ |
838 |
if (data->uudet == B64ENCODED) { |
839 |
/* |
840 |
* Assume it's the first part. I wonder why it's got no part number? |
841 |
*/ |
842 |
if (result->filename != NULL && *result->filename) |
843 |
result->subfname = FP_strdup (result->filename); |
844 |
else { /* if not, escape to UNKNOWN. We need to fill subfname */ |
845 |
sprintf (temp, "%s.%03d", nofname, ++nofnum); |
846 |
result->subfname = FP_strdup (temp); |
847 |
} |
848 |
if (result->subfname == NULL) { |
849 |
UUMessage (UUMSG_ERROR, |
850 |
uustring (S_OUT_OF_MEMORY), |
851 |
(result->filename)? |
852 |
(strlen(result->filename)+1):(strlen(temp)+1)); |
853 |
*ret = UURET_NOMEM; |
854 |
UUkillfile (result); |
855 |
return NULL; |
856 |
} |
857 |
lastvalid = 0; |
858 |
} |
859 |
else if (lastvalid && data->uudet == lastenc && result->partno == -1) { |
860 |
result->subfname = FP_strdup (uucheck_lastname); |
861 |
result->partno = ++lastpart; |
862 |
|
863 |
/* |
864 |
* if it's the last part, invalidate lastvalid |
865 |
*/ |
866 |
if (data->end || (data->partno && data->partno == data->maxpno)) |
867 |
lastvalid = 0; |
868 |
} |
869 |
else if (data->partno != -1 && result->filename) { |
870 |
result->subfname = FP_strdup (result->filename); |
871 |
} |
872 |
else { |
873 |
/* |
874 |
* it's got no info, it's got no begin, and we don't know anything |
875 |
* about this part. Let's forget all about it. |
876 |
*/ |
877 |
*ret = UURET_NODATA; |
878 |
UUkillfile (result); |
879 |
return NULL; |
880 |
} |
881 |
} |
882 |
else if (result->subfname == NULL && result->partno == -1) { |
883 |
/* |
884 |
* This, too, is a part without any useful information that we |
885 |
* should forget about. |
886 |
*/ |
887 |
*ret = UURET_NODATA; |
888 |
UUkillfile (result); |
889 |
return NULL; |
890 |
} |
891 |
else if (result->subfname == NULL) { |
892 |
/* |
893 |
* This is a part without useful subject name, a valid part number |
894 |
* but no encoded data. It *could* be the zeroeth part of something, |
895 |
* but we don't care here. Just forget it. |
896 |
*/ |
897 |
*ret = UURET_NODATA; |
898 |
UUkillfile (result); |
899 |
return NULL; |
900 |
} |
901 |
|
902 |
/* |
903 |
* now, handle some cases where we have a useful subject but no |
904 |
* useful part number |
905 |
*/ |
906 |
|
907 |
if (result->partno == -1 && data->begin) { |
908 |
/* |
909 |
* hmm, this is reason enough to initialize lastvalid, at least |
910 |
* if we have no end |
911 |
*/ |
912 |
if (!data->end) { |
913 |
FP_strncpy (uucheck_lastname, result->subfname, 256); |
914 |
result->partno = lastpart = 1; |
915 |
lastenc = data->uudet; |
916 |
lastvalid = 1; |
917 |
} |
918 |
else |
919 |
result->partno = 1; |
920 |
} |
921 |
else if (result->partno == -1 && data->uudet) { |
922 |
if (lastvalid && FP_stricmp (uucheck_lastname, result->subfname) == 0) { |
923 |
/* |
924 |
* if the subject filename is the same as last time, use part no |
925 |
* of lastvalid. If at end, invalidate lastvalid |
926 |
*/ |
927 |
result->partno = ++lastpart; |
928 |
|
929 |
if (data->end) |
930 |
lastvalid = 0; |
931 |
} |
932 |
else { |
933 |
/* |
934 |
* data but no part no. It's something UUInsertPartToList() should |
935 |
* handle |
936 |
*/ |
937 |
goto skipcheck; |
938 |
} |
939 |
} |
940 |
else if (result->partno == -1) { |
941 |
/* |
942 |
* it's got no data, so why should we need this one anyway? |
943 |
*/ |
944 |
*ret = UURET_NODATA; |
945 |
UUkillfile (result); |
946 |
return NULL; |
947 |
} |
948 |
|
949 |
/* |
950 |
* at this point, the part should have a valid subfname and a valid |
951 |
* part number. If it doesn't, then fail. |
952 |
*/ |
953 |
if (result->subfname == NULL || result->partno == -1) { |
954 |
*ret = UURET_NODATA; |
955 |
UUkillfile (result); |
956 |
return NULL; |
957 |
} |
958 |
|
959 |
skipcheck: |
960 |
|
961 |
if (result->filename) { |
962 |
if (*(ptr = FP_cutdir (result->filename))) { |
963 |
p2 = FP_strdup (ptr); |
964 |
FP_free (result->filename); |
965 |
result->filename = p2; |
966 |
} |
967 |
} |
968 |
|
969 |
result->data = data; |
970 |
result->NEXT = NULL; |
971 |
|
972 |
*ret = UURET_OK; |
973 |
|
974 |
return result; |
975 |
} |
976 |
|
977 |
/* |
978 |
* Insert one part of a file into the global list |
979 |
**/ |
980 |
|
981 |
ecb_hot int |
982 |
UUInsertPartToList (uufile *data) |
983 |
{ |
984 |
uulist *iter = UUGlobalFileList, *unew; |
985 |
uufile *fiter, *last; |
986 |
|
987 |
uint32_t mimeid_hash = fnv1a (data->mimeid); |
988 |
uint32_t filename_hash = fnv1a (data->filename); |
989 |
|
990 |
/* cache locally so the compiler has it easier to reason */ |
991 |
fileread *data_data = data->data; |
992 |
|
993 |
/* |
994 |
* Part belongs together, if either |
995 |
* (1) The file name received from the subject lines match, and |
996 |
* (a) Not both parts have a begin line |
997 |
* (b) Not both parts have an end line |
998 |
* (c) Both parts don't have different MIME-IDs |
999 |
* (d) Both parts don't encode different files |
1000 |
* (e) The other part wants to stay alone (FL_SINGLE) |
1001 |
* (g) The yencode file size matches. |
1002 |
* (2) The MIME-IDs match |
1003 |
*/ |
1004 |
|
1005 |
/* TODO: use two hash tables, keyed on filename and mimeid */ |
1006 |
/* unfortunately, its not so easy, as lots of code inserts in interesting ways, */ |
1007 |
/* so I tried to conventionally speed up the search by replacing strcmp with */ |
1008 |
/* hash comparisons, reordering and prefetching struct members and so on */ |
1009 |
|
1010 |
/* |
1011 |
* check if this part wants to be left alone. If so, don't bother |
1012 |
* to do all the checks |
1013 |
*/ |
1014 |
if (data_data->flags & FL_SINGLE) |
1015 |
goto newpart; |
1016 |
|
1017 |
while (iter) { |
1018 |
ecb_prefetch (iter->NEXT, 0, 1); |
1019 |
if ( |
1020 |
( |
1021 |
1 |
1022 |
&& filename_hash == iter->filename_hash |
1023 |
&& (data->filename && iter->filename && strcmp (data->filename, iter->filename) == 0) |
1024 |
&& !(iter->begin && data_data->begin) |
1025 |
&& !(iter->end && data_data->end) |
1026 |
&& !(iter->flags & FL_SINGLE) |
1027 |
&& !(iter->thisfile && iter->thisfile->yefilesize != data->yefilesize) |
1028 |
&& FP_stricmp (data->subfname, iter->subfname) == 0 |
1029 |
&& mimeid_hash == iter->mimeid_hash |
1030 |
&& !(data->mimeid && iter->mimeid && strcmp (data->mimeid, iter->mimeid) != 0) |
1031 |
) |
1032 |
|| (mimeid_hash == iter->mimeid_hash && data->mimeid && iter->mimeid && strcmp (data->mimeid, iter->mimeid) == 0) |
1033 |
) { |
1034 |
|
1035 |
/* |
1036 |
* Don't insert a part that is already there. |
1037 |
* |
1038 |
* Also don't add a part beyond the "end" marker (unless we |
1039 |
* have a mimeid, which screws up the marker). |
1040 |
*/ |
1041 |
|
1042 |
for (fiter=iter->thisfile; fiter; fiter=fiter->NEXT) { |
1043 |
if (data->partno == fiter->partno) |
1044 |
goto goahead; |
1045 |
if (!iter->mimeid) { |
1046 |
if (data->partno > fiter->partno && fiter->data->end) { |
1047 |
goto goahead; |
1048 |
} |
1049 |
} |
1050 |
} |
1051 |
|
1052 |
if (iter->filename == NULL && data->filename != NULL) { |
1053 |
if ((iter->filename = FP_strdup (data->filename)) == NULL) |
1054 |
return UURET_NOMEM; |
1055 |
} |
1056 |
|
1057 |
/* |
1058 |
* special case when we might have tagged a part as Base64 when the |
1059 |
* file was really XX |
1060 |
*/ |
1061 |
|
1062 |
if (data_data->uudet == B64ENCODED && |
1063 |
iter->uudet == XX_ENCODED && iter->begin) { |
1064 |
data_data->uudet = XX_ENCODED; |
1065 |
} |
1066 |
else if (data_data->uudet == XX_ENCODED && data_data->begin && |
1067 |
iter->uudet == B64ENCODED) { |
1068 |
iter->uudet = XX_ENCODED; |
1069 |
|
1070 |
fiter = iter->thisfile; |
1071 |
while (fiter) { |
1072 |
fiter->data->uudet = XX_ENCODED; |
1073 |
fiter = fiter->NEXT; |
1074 |
} |
1075 |
} |
1076 |
|
1077 |
/* |
1078 |
* If this is from a Message/Partial, we believe only the |
1079 |
* iter->uudet from the first part |
1080 |
*/ |
1081 |
if (data_data->flags & FL_PARTIAL) { |
1082 |
if (data->partno == 1) { |
1083 |
iter->uudet = data_data->uudet; |
1084 |
iter->flags = data_data->flags; |
1085 |
} |
1086 |
} |
1087 |
else { |
1088 |
if (data_data->uudet) iter->uudet = data_data->uudet; |
1089 |
if (data_data->flags) iter->flags = data_data->flags; |
1090 |
} |
1091 |
|
1092 |
if (iter->mode == 0 && data_data->mode != 0) |
1093 |
iter->mode = data_data->mode; |
1094 |
|
1095 |
if (data_data->begin) iter->begin = data->partno ? data->partno : 1; |
1096 |
if (data_data->end) iter->end = data->partno ? data->partno : 1; |
1097 |
|
1098 |
if (data->mimetype) { |
1099 |
FP_free (iter->mimetype); |
1100 |
iter->mimetype = FP_strdup (data->mimetype); |
1101 |
} |
1102 |
|
1103 |
/* |
1104 |
* insert part at the beginning |
1105 |
*/ |
1106 |
|
1107 |
if (data->partno != -1 && data->partno < iter->thisfile->partno) { |
1108 |
iter->state = UUFILE_READ; |
1109 |
data->NEXT = iter->thisfile; |
1110 |
iter->thisfile = data; |
1111 |
return UURET_OK; |
1112 |
} |
1113 |
|
1114 |
/* |
1115 |
* insert part somewhere else |
1116 |
*/ |
1117 |
|
1118 |
iter->state = UUFILE_READ; /* prepare for re-checking */ |
1119 |
fiter = iter->thisfile; |
1120 |
last = NULL; |
1121 |
|
1122 |
while (fiter) { |
1123 |
/* |
1124 |
* if we find the same part no again, check which one looks better |
1125 |
*/ |
1126 |
if (data->partno == fiter->partno) { |
1127 |
if (fiter->data->subject == NULL) |
1128 |
return UURET_NODATA; |
1129 |
else if (FP_stristr (fiter->data->subject, "repost") != NULL && |
1130 |
FP_stristr (data_data->subject, "repost") == NULL) |
1131 |
return UURET_NODATA; |
1132 |
else if (fiter->data->uudet && !data_data->uudet) |
1133 |
return UURET_NODATA; |
1134 |
else { |
1135 |
/* |
1136 |
* replace |
1137 |
*/ |
1138 |
data->NEXT = fiter->NEXT; |
1139 |
fiter->NEXT = NULL; |
1140 |
UUkillfile (fiter); |
1141 |
|
1142 |
if (last == NULL) |
1143 |
iter->thisfile = data; |
1144 |
else |
1145 |
last->NEXT = data; |
1146 |
|
1147 |
return UURET_OK; |
1148 |
} |
1149 |
} |
1150 |
|
1151 |
/* |
1152 |
* if at the end of the part list, add it |
1153 |
*/ |
1154 |
|
1155 |
if (fiter->NEXT == NULL || |
1156 |
(data->partno != -1 && data->partno < fiter->NEXT->partno)) { |
1157 |
data->NEXT = fiter->NEXT; |
1158 |
fiter->NEXT = data; |
1159 |
|
1160 |
if (data->partno == -1) |
1161 |
data->partno = fiter->partno + 1; |
1162 |
|
1163 |
return UURET_OK; |
1164 |
} |
1165 |
|
1166 |
last = fiter; |
1167 |
fiter = fiter->NEXT; |
1168 |
} |
1169 |
|
1170 |
/* Shouldn't get here */ |
1171 |
abort (); |
1172 |
} |
1173 |
|
1174 |
goahead: |
1175 |
iter = iter->NEXT; |
1176 |
|
1177 |
if (!iter) |
1178 |
break; |
1179 |
} |
1180 |
|
1181 |
newpart: |
1182 |
/* |
1183 |
* handle new entry |
1184 |
*/ |
1185 |
|
1186 |
if (data->partno == -1) { |
1187 |
/* |
1188 |
* if it's got no part no, and it's MIME mail, then assume this is |
1189 |
* part no. 1. If it's not MIME, then we can't handle it; if it |
1190 |
* had a 'begin', it'd have got a part number assigned by |
1191 |
* UUPreProcessPart(). |
1192 |
*/ |
1193 |
if (data_data->uudet == B64ENCODED || data_data->uudet == BH_ENCODED) |
1194 |
data->partno = 1; |
1195 |
else |
1196 |
return UURET_NODATA; |
1197 |
} |
1198 |
|
1199 |
if ((unew = (uulist *)malloc (sizeof (uulist))) == NULL) { |
1200 |
return UURET_NOMEM; |
1201 |
} |
1202 |
|
1203 |
{ |
1204 |
const uulist uulist_new = { 0 }; |
1205 |
*unew = uulist_new; /* zero-initialise the structure */ |
1206 |
} |
1207 |
|
1208 |
if ((unew->subfname = FP_strdup (data->subfname)) == NULL) { |
1209 |
FP_free (unew); |
1210 |
return UURET_NOMEM; |
1211 |
} |
1212 |
|
1213 |
unew->filename_hash = filename_hash; |
1214 |
if (data->filename != NULL) { |
1215 |
if ((unew->filename = FP_strdup (data->filename)) == NULL) { |
1216 |
FP_free (unew->subfname); |
1217 |
FP_free (unew); |
1218 |
return UURET_NOMEM; |
1219 |
} |
1220 |
} |
1221 |
else |
1222 |
unew->filename = NULL; |
1223 |
|
1224 |
unew->mimeid_hash = mimeid_hash; |
1225 |
if (data->mimeid != NULL) { |
1226 |
if ((unew->mimeid = FP_strdup (data->mimeid)) == NULL) { |
1227 |
FP_free (unew->subfname); |
1228 |
FP_free (unew->filename); |
1229 |
FP_free (unew); |
1230 |
return UURET_NOMEM; |
1231 |
} |
1232 |
} |
1233 |
else |
1234 |
unew->mimeid = NULL; |
1235 |
|
1236 |
if (data->mimetype != NULL) { |
1237 |
if ((unew->mimetype = FP_strdup (data->mimetype)) == NULL) { |
1238 |
FP_free (unew->mimeid); |
1239 |
FP_free (unew->subfname); |
1240 |
FP_free (unew->filename); |
1241 |
FP_free (unew); |
1242 |
return UURET_NOMEM; |
1243 |
} |
1244 |
} |
1245 |
else |
1246 |
unew->mimetype = NULL; |
1247 |
|
1248 |
unew->state = UUFILE_READ; |
1249 |
unew->thisfile = data; |
1250 |
unew->mode = data_data->mode; |
1251 |
unew->uudet = data_data->uudet; |
1252 |
unew->flags = data_data->flags; |
1253 |
unew->begin = data_data->begin ? (data->partno ? data->partno : 1) : 0; |
1254 |
unew->end = data_data->end ? (data->partno ? data->partno : 1) : 0; |
1255 |
|
1256 |
/* insert at the beginning, as parts often show up in bursts */ |
1257 |
unew->NEXT = UUGlobalFileList; |
1258 |
UUGlobalFileList = unew; |
1259 |
|
1260 |
return UURET_OK; |
1261 |
} |
1262 |
|
1263 |
/* |
1264 |
* At this point, all files are read in and stored in the |
1265 |
* "UUGlobalFileList". Do some checking. All parts there? |
1266 |
**/ |
1267 |
|
1268 |
void UUEXPORT |
1269 |
UUCheckGlobalList (void) |
1270 |
{ |
1271 |
int misparts[MAXPLIST], haveparts[MAXPLIST]; |
1272 |
int miscount, havecount, count, flag, part; |
1273 |
uulist *liter=UUGlobalFileList, *prev; |
1274 |
uufile *fiter; |
1275 |
long thesize; |
1276 |
|
1277 |
while (liter) { |
1278 |
miscount = 0; |
1279 |
thesize = 0; |
1280 |
|
1281 |
if (liter->state & UUFILE_OK) { |
1282 |
liter = liter->NEXT; |
1283 |
continue; |
1284 |
} |
1285 |
else if ((liter->uudet == QP_ENCODED || |
1286 |
liter->uudet == PT_ENCODED) && |
1287 |
(liter->flags & FL_SINGLE)) { |
1288 |
if ((liter->flags&FL_PROPER)==0) |
1289 |
liter->size = -1; |
1290 |
else |
1291 |
liter->size = liter->thisfile->data->length; |
1292 |
|
1293 |
liter->state = UUFILE_OK; |
1294 |
continue; |
1295 |
} |
1296 |
else if ((fiter = liter->thisfile) == NULL) { |
1297 |
liter->state = UUFILE_NODATA; |
1298 |
liter = liter->NEXT; |
1299 |
continue; |
1300 |
} |
1301 |
|
1302 |
/* |
1303 |
* Re-Check this file |
1304 |
*/ |
1305 |
|
1306 |
flag = 0; |
1307 |
miscount = 0; |
1308 |
havecount = 0; |
1309 |
thesize = 0; |
1310 |
liter->state = UUFILE_READ; |
1311 |
|
1312 |
/* |
1313 |
* search encoded data |
1314 |
*/ |
1315 |
|
1316 |
while (fiter && !fiter->data->uudet) { |
1317 |
if (havecount<MAXPLIST) { |
1318 |
haveparts[havecount++] = fiter->partno; |
1319 |
} |
1320 |
fiter = fiter->NEXT; |
1321 |
} |
1322 |
|
1323 |
if (fiter == NULL) { |
1324 |
liter->state = UUFILE_NODATA; |
1325 |
liter = liter->NEXT; |
1326 |
continue; |
1327 |
} |
1328 |
|
1329 |
if (havecount<MAXPLIST) { |
1330 |
haveparts[havecount++] = fiter->partno; |
1331 |
} |
1332 |
|
1333 |
if ((part = fiter->partno) > 1) { |
1334 |
if (!fiter->data->begin) { |
1335 |
for (count=1; count < part && miscount < MAXPLIST; count++) |
1336 |
misparts[miscount++] = count; |
1337 |
} |
1338 |
} |
1339 |
|
1340 |
/* |
1341 |
* don't care if so many parts are missing |
1342 |
*/ |
1343 |
|
1344 |
if (miscount >= MAXPLIST) { |
1345 |
liter->state = UUFILE_MISPART; |
1346 |
liter = liter->NEXT; |
1347 |
continue; |
1348 |
} |
1349 |
|
1350 |
if (liter->uudet == B64ENCODED || |
1351 |
liter->uudet == QP_ENCODED || |
1352 |
liter->uudet == PT_ENCODED) |
1353 |
flag |= 3; /* Don't need begin or end with Base64 or plain text*/ |
1354 |
|
1355 |
if (fiter->data->begin) flag |= 1; |
1356 |
if (fiter->data->end) flag |= 2; |
1357 |
if (fiter->data->uudet) flag |= 4; |
1358 |
|
1359 |
/* |
1360 |
* guess size of part |
1361 |
*/ |
1362 |
|
1363 |
switch (fiter->data->uudet) { |
1364 |
case UU_ENCODED: |
1365 |
case XX_ENCODED: |
1366 |
thesize += 3*fiter->data->length/4; |
1367 |
thesize -= 3*fiter->data->length/124; /* substract 2 of 62 chars */ |
1368 |
break; |
1369 |
case B64ENCODED: |
1370 |
thesize += 3*fiter->data->length/4; |
1371 |
thesize -= fiter->data->length/52; /* substract 2 of 78 chars */ |
1372 |
break; |
1373 |
case QP_ENCODED: |
1374 |
case PT_ENCODED: |
1375 |
thesize += fiter->data->length; |
1376 |
break; |
1377 |
} |
1378 |
|
1379 |
fiter = fiter->NEXT; |
1380 |
|
1381 |
while (fiter != NULL) { |
1382 |
for (count = part+1; count < fiter->partno && miscount < MAXPLIST; count++) |
1383 |
misparts[miscount++] = count; |
1384 |
|
1385 |
part = fiter->partno; |
1386 |
|
1387 |
if (havecount < MAXPLIST) |
1388 |
haveparts[havecount++] = part; |
1389 |
|
1390 |
if (fiter->data->begin) flag |= 1; |
1391 |
if (fiter->data->end) flag |= 2; |
1392 |
if (fiter->data->uudet) flag |= 4; |
1393 |
|
1394 |
switch (fiter->data->uudet) { |
1395 |
case UU_ENCODED: |
1396 |
case XX_ENCODED: |
1397 |
thesize += 3*fiter->data->length/4; |
1398 |
thesize -= 3*fiter->data->length/124; /* substract 2 of 62 chars */ |
1399 |
break; |
1400 |
case B64ENCODED: |
1401 |
thesize += 3*fiter->data->length/4; |
1402 |
thesize -= fiter->data->length/52; /* substract 2 of 78 chars */ |
1403 |
break; |
1404 |
case QP_ENCODED: |
1405 |
case PT_ENCODED: |
1406 |
thesize += fiter->data->length; |
1407 |
break; |
1408 |
} |
1409 |
|
1410 |
if (fiter->data->end) |
1411 |
break; |
1412 |
|
1413 |
fiter = fiter->NEXT; |
1414 |
} |
1415 |
|
1416 |
/* |
1417 |
* if in fast mode, we don't notice an 'end'. So if its uu or xx |
1418 |
* encoded, there's a begin line and encoded data, assume it's |
1419 |
* there. |
1420 |
*/ |
1421 |
|
1422 |
if (uu_fast_scanning && (flag & 0x01) && (flag & 0x04) && |
1423 |
(liter->uudet == UU_ENCODED || liter->uudet == XX_ENCODED)) |
1424 |
flag |= 2; |
1425 |
|
1426 |
/* |
1427 |
* Set the parts we have and/or missing |
1428 |
*/ |
1429 |
|
1430 |
FP_free (liter->haveparts); |
1431 |
FP_free (liter->misparts); |
1432 |
|
1433 |
liter->haveparts = NULL; |
1434 |
liter->misparts = NULL; |
1435 |
|
1436 |
if (havecount) { |
1437 |
if ((liter->haveparts=(int*)malloc((havecount+1)*sizeof(int)))!=NULL) { |
1438 |
memcpy (liter->haveparts, haveparts, havecount*sizeof(int)); |
1439 |
liter->haveparts[havecount] = 0; |
1440 |
} |
1441 |
} |
1442 |
|
1443 |
if (miscount) { |
1444 |
if ((liter->misparts=(int*)malloc((miscount+1)*sizeof(int)))!=NULL) { |
1445 |
memcpy (liter->misparts, misparts, miscount*sizeof(int)); |
1446 |
liter->misparts[miscount] = 0; |
1447 |
} |
1448 |
liter->state |= UUFILE_MISPART; |
1449 |
} |
1450 |
|
1451 |
/* |
1452 |
* Finalize checking |
1453 |
*/ |
1454 |
|
1455 |
if ((flag & 1) == 0) liter->state |= UUFILE_NOBEGIN; |
1456 |
if ((flag & 2) == 0) liter->state |= UUFILE_NOEND; |
1457 |
if ((flag & 4) == 0) liter->state |= UUFILE_NODATA; |
1458 |
|
1459 |
if ((flag & 7) == 7 && miscount==0) { |
1460 |
liter->state = UUFILE_OK; |
1461 |
} |
1462 |
|
1463 |
if ((uu_fast_scanning && (liter->flags&FL_PROPER)==0) || thesize<=0) |
1464 |
liter->size = -1; |
1465 |
else |
1466 |
liter->size = thesize; |
1467 |
|
1468 |
if (liter->state==UUFILE_OK && |
1469 |
(liter->filename==NULL || liter->filename[0]=='\0')) { |
1470 |
/* |
1471 |
* Emergency backup if the file does not have a filename |
1472 |
*/ |
1473 |
FP_free (liter->filename); |
1474 |
if (liter->subfname && liter->subfname[0] && |
1475 |
FP_strpbrk (liter->subfname, "()[];: ") == NULL) |
1476 |
liter->filename = FP_strdup (liter->subfname); |
1477 |
else { |
1478 |
sprintf (uucheck_tempname, "%s.%03d", nofname, ++nofnum); |
1479 |
liter->filename = FP_strdup (uucheck_tempname); |
1480 |
} |
1481 |
} |
1482 |
liter = liter->NEXT; |
1483 |
} |
1484 |
|
1485 |
/* |
1486 |
* Sets back (PREV) links |
1487 |
*/ |
1488 |
|
1489 |
liter = UUGlobalFileList; |
1490 |
prev = NULL; |
1491 |
|
1492 |
while (liter) { |
1493 |
liter->PREV = prev; |
1494 |
prev = liter; |
1495 |
liter = liter->NEXT; |
1496 |
} |
1497 |
} |
1498 |
|