Annotation of parser3/src/main/pa_file.C, revision 1.9
1.1 moko 1: /** @file
2: Parser: file and file system related functions.
3:
4: Copyright (c) 2000-2026 Art. Lebedev Studio (https://www.artlebedev.com)
5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
6: */
7:
8: #include "pa_file.h"
9: #include "pa_dir.h"
10: #include "pa_charsets.h"
11: #include "pa_http.h"
12: #include "pa_convert_utf.h"
13:
14: #ifdef _MSC_VER
15: #include <windows.h>
16: #include <direct.h>
17: #endif
18:
1.9 ! moko 19: volatile const char * IDENT_PA_FILE_C="$Id: pa_file.C,v 1.8 2026/10/01 11:48:37 moko Exp $" IDENT_PA_FILE_H;
1.8 moko 20:
21: // a tainted path scheme (file://, http:// or parser://) would be accepted
22: //#define IGNORE_FILE_PREFIX_LANGUAGES
1.1 moko 23:
24: // some maybe-undefined constants
25:
26: #ifndef _O_TEXT
27: # define _O_TEXT 0
28: #endif
29: #ifndef _O_BINARY
30: # define _O_BINARY 0
31: #endif
32:
33: #ifdef HAVE_FTRUNCATE
34: # define PA_O_TRUNC 0
35: #else
36: # ifdef _O_TRUNC
37: # define PA_O_TRUNC _O_TRUNC
38: # else
39: # error you must have either ftruncate function or _O_TRUNC bit declared
40: # endif
41: #endif
42:
43: #ifdef WIN32
44:
45: bool is_os_absolute_path(const String& path) {
46: return is_os_absolute_path(path.cstr());
47: }
48:
49: bool is_os_absolute_path(const char* path) {
50: return path[0] && path[0]!=':' && path[1]==':' // DRIVE: (including drive-relative paths, for compatibility)
1.4 moko 51: || path[0]=='\\' && path[1]=='\\'; // UNC, only '\\' is supported as '//' is a document root relative path
1.1 moko 52: }
53: #endif
54:
1.5 moko 55: uint path_scheme(const String& path) {
56: if(path.starts_with("file://"))
57: return PA_SCHEME_FILE;
58: if(path.starts_with("http://"))
59: return PA_SCHEME_HTTP;
60: if(path.starts_with("parser://"))
61: return PA_SCHEME_PARSER;
62: return PA_SCHEME_NONE;
63: }
64:
1.9 ! moko 65: bool clean_path_scheme(uint scheme, const String& path) {
! 66: #ifdef IGNORE_FILE_PREFIX_LANGUAGES
! 67: return true;
! 68: #else
! 69: return path.check_lang(String::L_AS_IS, 0, scheme==PA_SCHEME_PARSER ? 9 /* "parser://" */ : 7 /* "file://" or "http://" */);
! 70: #endif
! 71: }
! 72:
1.5 moko 73: void check_path_scheme(uint scheme, const String& path, uint allowed) {
74: if(scheme!=PA_SCHEME_FILE && !(allowed&scheme))
75: throw Exception(PARSER_RUNTIME, &path, "unsupported path scheme");
1.9 ! moko 76: if(!clean_path_scheme(scheme, path))
1.8 moko 77: throw Exception(PARSER_RUNTIME, &path, "tainted path scheme");
1.5 moko 78: }
79:
80: const String* file_uri_to_path(const String& uri) {
81: const String* rest=&uri.mid(7 /* "file://" */, uri.length());
82: if(rest->starts_with("localhost/"))
83: rest=&rest->mid(9 /* "localhost", keeping the slash */, rest->length());
84: if(rest->first_char()=='/') {
85: // file:///C:/path and file://localhost/C:/path: the slash before a drive name is not a part of the path
86: const String& disk=rest->mid(1, rest->length());
87: return is_os_absolute_path(disk) ? &disk : rest;
88: }
89: if(is_os_absolute_path(*rest))
90: return rest; // file://C:/path, not a standard form but in use
1.7 moko 91: #ifdef WIN32
92: if(rest->pos('/')!=STRING_NOT_FOUND) { // file://server/share/path is the UNC path \\server\share\path
93: String& result=*new String("//");
94: result << *rest;
95: return &result;
96: }
97: #endif
1.5 moko 98: return 0;
99: }
100:
1.1 moko 101: // externs
102:
103: const UTF16* pa_utf16_encode(const char* in, Charset& source_charset);
104:
105: // functions
106:
107: #ifdef _MSC_VER
108:
109: #define PA_UTF16_ENC(value) (const wchar_t *)pa_utf16_encode(value, pa_thread_request().charsets.source())
110:
111: int pa_stat(const char *pathname, struct stat *buffer){
112: return _wstat64(PA_UTF16_ENC(pathname), buffer);
113: }
114:
115: int pa_open(const char *pathname, int flags, int mode){
116: return _wopen(PA_UTF16_ENC(pathname), flags, mode);
117: }
118:
119: FILE *pa_fopen(const char *pathname, const char *mode){
120: return _wfopen(PA_UTF16_ENC(pathname), PA_UTF16_ENC(mode));
121: }
122:
123: int pa_mkdir(const char *pathname, int){
124: return _wmkdir(PA_UTF16_ENC(pathname));
125: }
126:
127: int pa_rmdir(const char *pathname){
128: return _wrmdir(PA_UTF16_ENC(pathname));
129: }
130:
131: int pa_rename(const char *oldpath, const char *newpath){
132: return _wrename(PA_UTF16_ENC(oldpath), PA_UTF16_ENC(newpath));
133: }
134:
135: int pa_unlink(const char *pathname){
136: return _wunlink(PA_UTF16_ENC(pathname));
137: }
138:
139: #else
140:
141: #define pa_mkdir mkdir
142: #define pa_rmdir rmdir
143: #define pa_rename rename
144: #define pa_unlink unlink
145:
146: #endif
147:
148: /// these options were handled but not checked elsewhere, now check them
149: int pa_get_valid_file_options_count(HashStringValue& options) {
150: int result=0;
151: if(options.get(PA_SQL_LIMIT_NAME))
152: result++;
153: if(options.get(PA_SQL_OFFSET_NAME))
154: result++;
155: if(options.get(PA_COLUMN_SEPARATOR_NAME))
156: result++;
157: if(options.get(PA_COLUMN_ENCLOSER_NAME))
158: result++;
159: if(options.get(PA_CHARSET_NAME))
160: result++;
161: return result;
162: }
163:
164: #ifndef DOXYGEN
165: struct File_read_action_info {
166: char **data; size_t *data_size;
167: char* buf; uint64_t offset; size_t limit;
1.3 moko 168: };
1.1 moko 169: #endif
170:
171: static void file_read_action(struct stat& finfo, int f, const String& file_spec, void *context) {
1.3 moko 172: File_read_action_info& info = *static_cast<File_read_action_info *>(context);
1.1 moko 173: size_t to_read_size = check_file_size(info.limit && info.limit < (size_t)finfo.st_size ? info.limit : (size_t)finfo.st_size, &file_spec);
174: if(to_read_size) {
175: if(info.offset)
176: pa_lseek(f, info.offset, SEEK_SET); // seek never fails as POSIX allows the file offset to be set beyond the EOF
177: *info.data = info.buf ? info.buf : (char *)pa_malloc_atomic(to_read_size+1);
178: ssize_t result = read(f, *info.data, to_read_size);
179: if(result<0)
180: throw Exception("file.read", &file_spec, "read failed: %s (%d)", strerror(errno), errno);
181: *info.data_size = result;
182: } else { // empty file
183: // for both, text and binary: for text we need that terminator, for binary we need nonzero pointer to be able to save such files
184: *info.data = (char *)pa_malloc_atomic(1);
185: *(char*)(*info.data) = 0;
186: *info.data_size = 0;
187: return;
188: }
189: }
190:
191: File_read_result file_read_binary(const String& file_spec, bool fail_on_read_problem, char* buf, uint64_t offset, size_t limit) {
192: File_read_result result = {false, 0, 0, 0};
193: File_read_action_info info = {&result.str, &result.length, buf, offset, limit};
194:
195: result.success = file_read_action_under_lock(file_spec, "read", file_read_action, &info, 0, fail_on_read_problem);
196: return result;
197: }
198:
1.3 moko 199: File_read_result file_read(Request_charsets& charsets, const String& file_spec,
1.1 moko 200: bool as_text, HashStringValue *options,
201: bool fail_on_read_problem,
202: size_t offset = 0, size_t limit = 0, bool transcode_text_result = true) {
203: File_read_result result = {false, 0, 0, 0};
204: if(options){
205: int valid_options = pa_get_valid_file_options_count(*options);
206: if(valid_options != options->count())
207: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
208: }
209:
1.3 moko 210: File_read_action_info info = {&result.str, &result.length, 0, offset, limit};
1.1 moko 211:
1.3 moko 212: result.success = file_read_action_under_lock(file_spec, "read", file_read_action, &info, as_text, fail_on_read_problem);
1.1 moko 213:
214: if(as_text){
215: if(result.success){
216: Charset* asked_charset = 0;
217: if(options)
218: if(Value* vcharset_name = options->get(PA_CHARSET_NAME))
219: asked_charset = &pa_charsets.get(vcharset_name->as_string());
220:
221: asked_charset = pa_charsets.checkBOM(result.str, result.length, asked_charset);
222:
223: if(result.length && transcode_text_result && asked_charset){ // length must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below
224: String::C body = String::C(result.str, result.length);
225: body=Charset::transcode(body, *asked_charset, charsets.source());
226:
227: result.str = const_cast<char*>(body.str); // hacking a little
228: result.length = body.length;
229: }
230: }
231: if(result.length)
232: fix_line_breaks(result.str, result.length);
233: }
234:
235: return result;
236: }
237:
1.3 moko 238: File_read_result file_load(Request& r, const String& file_spec,
1.1 moko 239: bool as_text, HashStringValue *options,
240: bool fail_on_read_problem,
241: bool transcode_text_result) {
242:
243: size_t offset = 0;
244: size_t limit = 0;
245:
246: if(options){
247: if(Value *voffset = (Value *)options->get(sql_offset_name))
248: offset = r.process(*voffset).as_int();
249: if(Value *vlimit = (Value *)options->get(sql_limit_name))
250: limit = r.process(*vlimit).as_int();
251: // no check on options count here
252: }
253:
254: if(file_spec.starts_with("http://")) {
255: if(offset || limit)
256: throw Exception(PARSER_RUNTIME, 0, "offset and load options are not supported for HTTP:// file load");
257:
258: // fail on read problem
259: File_read_http_result http = pa_internal_file_read_http(r, file_spec, as_text, options, transcode_text_result);
260:
261: File_read_result result = {true, http.str, http.length, http.headers};
262: return result;
263: } else
264: return file_read(r.charsets, file_spec, as_text, options, fail_on_read_problem, offset, limit, transcode_text_result);
265: }
266:
267: char* file_read_text(Request_charsets& charsets, const String& file_spec, bool fail_on_read_problem) {
268: File_read_result file = file_read(charsets, file_spec, true, 0, fail_on_read_problem);
269: return file.success ? file.str : 0;
270: }
271:
272: char* file_load_text(Request& r, const String& file_spec, bool fail_on_read_problem, HashStringValue* options, bool transcode_result) {
273: File_read_result file = file_load(r, file_spec, true, options, fail_on_read_problem, transcode_result);
274: return file.success ? file.str : 0;
275: }
276:
277: #ifdef PA_SAFE_MODE
278: void check_safe_mode(struct stat finfo, const String& file_spec, const char* fname) {
279: if(finfo.st_uid/*foreign?*/!=geteuid()
280: && finfo.st_gid/*foreign?*/!=getegid())
281: throw Exception(PARSER_RUNTIME,
282: &file_spec,
283: "parser is in safe mode: reading files of foreign group and user disabled "
284: "[recompile parser with --disable-safe-mode configure option], "
285: "actual filename '%s', fuid(%d)!=euid(%d) or fgid(%d)!=egid(%d)",
286: fname, finfo.st_uid, geteuid(), finfo.st_gid, getegid()
287: );
288: }
289: #else
290: void check_safe_mode(struct stat, const String&, const char*) {
291: }
292: #endif
293:
294:
295: bool file_read_action_under_lock(const String& file_spec, const char* action_name, File_read_action action, void *context,
296: bool as_text, bool fail_on_read_problem) {
297:
298: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
299: int f;
300:
301: // first open, next stat:
302: // directory update of NTFS hard links performed on open.
1.3 moko 303: // ex:
1.1 moko 304: // a.html:^test[] and b.html hardlink to a.html
305: // user inserts ! before ^test in a.html
1.3 moko 306: // directory entry of b.html in NTFS not updated at once,
1.1 moko 307: // they delay update till open, so we would receive "!^test[" string
308: // if would do stat, next open.
309: // later: it seems, even this does not help sometimes
310: if((f=pa_open(fname, O_RDONLY | (as_text ? _O_TEXT : _O_BINARY) ))>=0) {
311: try {
312: int pa_errno=pa_lock_shared_blocking(f);
313: if(pa_errno!=0)
314: throw Exception("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", strerror(pa_errno), pa_errno, fname);
315:
316: struct stat finfo;
317: if(pa_fstat(f, &finfo)!=0)
318: throw Exception("file.missing", // hardly possible: we just opened it OK
319: &file_spec, "stat failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname);
320:
321: check_safe_mode(finfo, file_spec, fname);
322:
1.3 moko 323: action(finfo, f, file_spec, context);
1.1 moko 324: } catch(...) {
1.3 moko 325: pa_unlock(f);close(f);
1.1 moko 326: if(fail_on_read_problem)
327: rethrow;
328: return false;
1.3 moko 329: }
1.1 moko 330:
1.3 moko 331: pa_unlock(f);close(f);
1.1 moko 332: return true;
333: } else {
334: if(fail_on_read_problem)
335: throw Exception(errno==EACCES ? "file.access" : (errno==ENOENT || errno==ENOTDIR || errno==ENODEV) ? "file.missing" : 0,
336: &file_spec, "%s failed: %s (%d), actual filename '%s'", action_name, strerror(errno), errno, fname);
337: return false;
338: }
339: }
340:
341: void create_dir_for_file(const String& file_spec) {
342: const char *str=file_spec.taint_cstr(String::L_FILE_SPEC);
343: if(str[0]){
344: const char *pos=str+1;
1.6 moko 345: while((pos=strchr(pos, '/')) && pos[1]) { // to avoid trailing /, see #1166
1.1 moko 346: pa_mkdir(pa_strdup(str,pos-str), 0775);
347: pos++;
348: }
349: }
350: }
351:
352: bool file_write_action_under_lock(const String& file_spec, const char* action_name, File_write_action action, void *context,
353: bool as_text, bool do_append, bool do_block, bool fail_on_lock_problem) {
354:
355: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
356: int f;
357: if(access(fname, W_OK)!=0) // no
358: create_dir_for_file(file_spec);
359:
360: if((f=pa_open(fname, O_CREAT | O_RDWR | (as_text ? _O_TEXT : _O_BINARY) | (do_append ? O_APPEND : PA_O_TRUNC), 0664))>=0) {
361: int pa_errno=do_block ? pa_lock_exclusive_blocking(f) : pa_lock_exclusive_nonblocking(f);
362: if(pa_errno!=0) {
363: Exception e("file.lock", &file_spec, "shared lock failed: %s (%d), actual filename '%s'", strerror(pa_errno), pa_errno, fname);
364: close(f);
365: if(fail_on_lock_problem)
366: throw e;
367: return false;
368: }
369:
370: try {
371: #if (defined(HAVE_FCHMOD) && defined(PA_SAFE_MODE))
372: struct stat finfo;
373: if(pa_fstat(f, &finfo)==0 && finfo.st_mode & 0111)
374: fchmod(f, finfo.st_mode & 0666/*clear executable bits*/); // backward: ignore errors if any
375: #endif
376: action(f, context);
377: } catch(...) {
378: #ifdef HAVE_FTRUNCATE
379: if(!do_append)
380: PA_UNUSED int ignore_result=ftruncate(f, lseek(f, 0, SEEK_CUR)); // one cannot use O_TRUNC, read lower
381: #endif
382: pa_unlock(f);close(f);
383: rethrow;
384: }
385:
386: #ifdef HAVE_FTRUNCATE
387: if(!do_append)
388: PA_UNUSED int ignore_result=ftruncate(f, lseek(f, 0, SEEK_CUR)); // O_TRUNC truncates even exclusevely write-locked file [thanks to Igor Milyakov <virtan@rotabanner.com> for discovering]
389: #endif
390: pa_unlock(f);close(f);
391: return true;
392: } else
393: throw Exception(errno==EACCES ? "file.access" : 0, &file_spec, "%s failed: %s (%d), actual filename '%s'", action_name, strerror(errno), errno, fname);
394: // here should be nothing, see rethrow above
395: }
396:
397: #ifndef DOXYGEN
398: struct File_write_action_info {
399: const char* str;
400: size_t length;
401: };
402: #endif
403:
404: // a single write() must stay below INT_MAX as windows _write() reports written bytes as int
405: #define FILE_WRITE_CHUNK_SIZE (256*0x100000)
406:
407: static const char* bytes_left(size_t rest) {
408: return rest ? pa_strcat(", ", pa_uitoa(rest), " bytes left") : "";
409: }
410:
411: static void file_write_action(int f, void *context) {
412: File_write_action_info& info=*static_cast<File_write_action_info *>(context);
413:
414: const char* data=info.str;
415: size_t left=info.length;
416:
417: while(left) {
418: size_t portion=min(left, (size_t)FILE_WRITE_CHUNK_SIZE);
419: ssize_t written=write(f, data, portion);
420: if(written<0)
421: throw Exception("file.write", 0, "error writing %s bytes: %s (%d)%s", pa_uitoa(portion), strerror(errno), errno, bytes_left(left-portion));
422: if(written==0)
423: throw Exception("file.write", 0, "error writing %s bytes: zero bytes written%s", pa_uitoa(portion), bytes_left(left-portion));
424: data+=written;
425: left-=written;
426: }
427: }
428:
429: void file_write(
430: Request_charsets& charsets,
431: const String& file_spec,
432: const char* data,
1.3 moko 433: size_t size,
434: bool as_text,
1.1 moko 435: bool do_append,
436: Charset* asked_charset) {
437:
438: if(as_text && asked_charset){
439: String::C body=String::C(data, size);
440: body=Charset::transcode(body, charsets.source(), *asked_charset);
441: data=body.str;
442: size=body.length;
443: };
444:
445: File_write_action_info info={data, size};
446:
447: file_write_action_under_lock(
448: file_spec,
449: "write",
450: file_write_action,
451: &info,
452: as_text,
453: do_append);
454: }
455:
456: static size_t get_dir(char* fname, size_t helper_length){
457: bool dir=false;
458: size_t pos=0;
459: for(pos=helper_length; pos; pos--){
460: char c=fname[pos-1];
1.6 moko 461: if(c=='/'){
1.1 moko 462: fname[pos-1]=0;
463: dir=true;
464: } else if(dir) break;
465: }
466: return pos;
467: }
468:
469: bool entry_exists(const char* fname, struct stat *afinfo) {
470: struct stat lfinfo;
471: bool result=pa_stat(fname, &lfinfo)==0;
472: if(afinfo)
473: *afinfo=lfinfo;
474: return result;
475: }
476:
477: bool entry_exists(const String& file_spec) {
1.3 moko 478: return entry_exists(file_spec.taint_cstr(String::L_FILE_SPEC), 0);
1.1 moko 479: }
480:
481: static bool entry_ifdir(char *fname, bool need_dir) {
482: if(need_dir){
483: size_t size=strlen(fname);
484: while(size) {
485: char c=fname[size-1];
1.6 moko 486: if(c=='/')
1.1 moko 487: fname[--size]=0;
488: else
489: break;
490: }
491: }
492:
493: struct stat finfo;
494: if(entry_exists(fname, &finfo)) {
495: bool is_dir=(finfo.st_mode&S_IFDIR) != 0;
496: return is_dir==need_dir;
497: }
498: return false;
499: }
500:
501: static bool entry_ifdir(const String& file_spec, bool need_dir) {
502: return entry_ifdir(file_spec.taint_cstrm(String::L_FILE_SPEC), need_dir);
503: }
504:
505: // throws nothing! [this is required in file_move & file_delete]
506: static void rmdir(const String& file_spec, size_t pos_after) {
507: char* dir_spec=file_spec.taint_cstrm(String::L_FILE_SPEC);
508: size_t length=strlen(dir_spec);
509: while( (length=get_dir(dir_spec, length)) && (length > pos_after) ){
510: #ifdef _MSC_VER
511: if(!entry_ifdir(dir_spec, true))
512: break;
513: DWORD attrs=GetFileAttributesW(PA_UTF16_ENC(dir_spec));
514: if(
515: (attrs==INVALID_FILE_ATTRIBUTES)
516: || !(attrs & FILE_ATTRIBUTE_DIRECTORY)
517: || (attrs & FILE_ATTRIBUTE_REPARSE_POINT)
518: )
519: break;
520: #endif
521: if(pa_rmdir(dir_spec))
522: break;
523: };
524: }
525:
526: bool file_delete(const String& file_spec, bool fail_on_problem, bool keep_empty_dirs) {
1.3 moko 527: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.1 moko 528: if(pa_unlink(fname)!=0) {
529: if(fail_on_problem)
530: throw Exception(errno==EACCES?"file.access":errno==ENOENT?"file.missing":0,
531: &file_spec, "unlink failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname);
532: else
533: return false;
534: }
535:
536: if(!keep_empty_dirs)
1.3 moko 537: rmdir(file_spec, 1);
1.1 moko 538:
539: return true;
540: }
541:
542: void file_move(const String& old_spec, const String& new_spec, bool keep_empty_dirs) {
1.3 moko 543: const char* old_spec_cstr=old_spec.taint_cstr(String::L_FILE_SPEC);
544: const char* new_spec_cstr=new_spec.taint_cstr(String::L_FILE_SPEC);
1.1 moko 545:
1.3 moko 546: create_dir_for_file(new_spec);
1.1 moko 547:
548: if(pa_rename(old_spec_cstr, new_spec_cstr)!=0)
549: throw Exception(errno==EACCES ? "file.access" : errno==ENOENT ? "file.missing" : 0,
550: &old_spec, "rename failed: %s (%d), actual filename '%s' to '%s'", strerror(errno), errno, old_spec_cstr, new_spec_cstr);
551:
552: if(!keep_empty_dirs)
1.3 moko 553: rmdir(old_spec, 1);
1.1 moko 554: }
555:
556:
557: bool file_exist(const String& file_spec) {
1.3 moko 558: return entry_ifdir(file_spec, false);
1.1 moko 559: }
560:
561: bool dir_exists(const String& file_spec) {
1.3 moko 562: return entry_ifdir(file_spec, true);
1.1 moko 563: }
564:
565: const String* file_exist(const String& path, const String& name) {
566: String& result=*new String(path);
1.6 moko 567: if(path.last_char() != '/')
1.1 moko 568: result << "/";
569: result << name;
570: return file_exist(result)?&result:0;
571: }
572:
573: bool file_executable(const String& file_spec) {
574: return access(file_spec.taint_cstr(String::L_FILE_SPEC), X_OK)==0;
575: }
576:
577: bool file_stat(const String& file_spec, uint64_t& rsize, time_t& ratime, time_t& rmtime, time_t& rctime, bool fail_on_read_problem) {
1.3 moko 578: const char* fname=file_spec.taint_cstr(String::L_FILE_SPEC);
1.1 moko 579: struct stat finfo;
580: if(pa_stat(fname, &finfo)!=0) {
581: if(fail_on_read_problem)
582: throw Exception("file.missing", &file_spec, "getting file size failed: %s (%d), real filename '%s'", strerror(errno), errno, fname);
583: else
584: return false;
585: }
586: rsize=finfo.st_size;
587: ratime=(time_t)finfo.st_atime;
588: rmtime=(time_t)finfo.st_mtime;
589: rctime=(time_t)finfo.st_ctime;
590: return true;
591: }
592:
593: size_t check_file_size(uint64_t size, const String* file_spec){
594: if(size > (uint64_t)pa_file_size_limit)
1.2 moko 595: throw Exception(PARSER_RUNTIME, file_spec, "content size of %s bytes exceeds the limit (%s bytes)", pa_uitoa(size), pa_uitoa(pa_file_size_limit));
1.1 moko 596: return (size_t)size;
597: }
598:
1.3 moko 599: /**
1.1 moko 600: String related functions
601: */
602:
603: const char *pa_filename(const char *path){
604: const char *slash=strrpbrk(path, "/\\");
605: return slash ? slash+1 : path;
606: }
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