4 * Copyright 2002 Alexandre Julliard for CodeWeavers
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
39 #include "setupapi_private.h"
41 #include "wine/unicode.h"
42 #include "wine/debug.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
46 #define CONTROL_Z '\x1a'
47 #define MAX_SECTION_NAME_LEN 255
48 #define MAX_FIELD_LEN 511 /* larger fields get silently truncated */
49 /* actual string limit is MAX_INF_STRING_LENGTH+1 (plus terminating null) under Windows */
50 #define MAX_STRING_LEN (MAX_INF_STRING_LENGTH+1)
52 /* inf file structure definitions */
56 const WCHAR *text; /* field text */
61 int first_field; /* index of first field in field array */
62 int nb_fields; /* number of fields in line */
63 int key_field; /* index of field for key or -1 if no key */
68 const WCHAR *name; /* section name */
69 unsigned int nb_lines; /* number of used lines */
70 unsigned int alloc_lines; /* total number of allocated lines in array below */
71 struct line lines[16]; /* lines information (grown dynamically, 16 is initial size) */
76 struct inf_file *next; /* next appended file */
77 WCHAR *strings; /* buffer for string data (section names and field values) */
78 WCHAR *string_pos; /* position of next available string in buffer */
79 unsigned int nb_sections; /* number of used sections */
80 unsigned int alloc_sections; /* total number of allocated section pointers */
81 struct section **sections; /* section pointers array */
82 unsigned int nb_fields;
83 unsigned int alloc_fields;
85 int strings_section; /* index of [Strings] section or -1 if none */
86 WCHAR *src_root; /* source root directory */
89 /* parser definitions */
93 LINE_START, /* at beginning of a line */
94 SECTION_NAME, /* parsing a section name */
95 KEY_NAME, /* parsing a key name */
96 VALUE_NAME, /* parsing a value name */
97 EOL_BACKSLASH, /* backslash at end of line */
98 QUOTES, /* inside quotes */
99 LEADING_SPACES, /* leading spaces */
100 TRAILING_SPACES, /* trailing spaces */
101 COMMENT, /* inside a comment */
107 const WCHAR *start; /* start position of item being parsed */
108 const WCHAR *end; /* end of buffer */
109 struct inf_file *file; /* file being built */
110 enum parser_state state; /* current parser state */
111 enum parser_state stack[4]; /* state stack */
112 int stack_pos; /* current pos in stack */
114 int cur_section; /* index of section being parsed*/
115 struct line *line; /* current line */
116 unsigned int line_pos; /* current line position in file */
117 unsigned int error; /* error code */
118 unsigned int token_len; /* current token len */
119 WCHAR token[MAX_FIELD_LEN+1]; /* current token */
122 typedef const WCHAR * (*parser_state_func)( struct parser *parser, const WCHAR *pos );
124 /* parser state machine functions */
125 static const WCHAR *line_start_state( struct parser *parser, const WCHAR *pos );
126 static const WCHAR *section_name_state( struct parser *parser, const WCHAR *pos );
127 static const WCHAR *key_name_state( struct parser *parser, const WCHAR *pos );
128 static const WCHAR *value_name_state( struct parser *parser, const WCHAR *pos );
129 static const WCHAR *eol_backslash_state( struct parser *parser, const WCHAR *pos );
130 static const WCHAR *quotes_state( struct parser *parser, const WCHAR *pos );
131 static const WCHAR *leading_spaces_state( struct parser *parser, const WCHAR *pos );
132 static const WCHAR *trailing_spaces_state( struct parser *parser, const WCHAR *pos );
133 static const WCHAR *comment_state( struct parser *parser, const WCHAR *pos );
135 static const parser_state_func parser_funcs[NB_PARSER_STATES] =
137 line_start_state, /* LINE_START */
138 section_name_state, /* SECTION_NAME */
139 key_name_state, /* KEY_NAME */
140 value_name_state, /* VALUE_NAME */
141 eol_backslash_state, /* EOL_BACKSLASH */
142 quotes_state, /* QUOTES */
143 leading_spaces_state, /* LEADING_SPACES */
144 trailing_spaces_state, /* TRAILING_SPACES */
145 comment_state /* COMMENT */
149 /* Unicode string constants */
150 static const WCHAR Version[] = {'V','e','r','s','i','o','n',0};
151 static const WCHAR Signature[] = {'S','i','g','n','a','t','u','r','e',0};
152 static const WCHAR Chicago[] = {'$','C','h','i','c','a','g','o','$',0};
153 static const WCHAR WindowsNT[] = {'$','W','i','n','d','o','w','s',' ','N','T','$',0};
154 static const WCHAR Windows95[] = {'$','W','i','n','d','o','w','s',' ','9','5','$',0};
155 static const WCHAR LayoutFile[] = {'L','a','y','o','u','t','F','i','l','e',0};
157 /* extend an array, allocating more memory if necessary */
158 static void *grow_array( void *array, unsigned int *count, size_t elem )
161 unsigned int new_count = *count + *count / 2;
162 if (new_count < 32) new_count = 32;
165 new_array = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, array, new_count * elem );
167 new_array = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * elem );
173 HeapFree( GetProcessHeap(), 0, array );
178 /* find a section by name */
179 static int find_section( struct inf_file *file, const WCHAR *name )
183 for (i = 0; i < file->nb_sections; i++)
184 if (!strcmpiW( name, file->sections[i]->name )) return i;
189 /* find a line by name */
190 static struct line *find_line( struct inf_file *file, int section_index, const WCHAR *name )
192 struct section *section;
196 if (section_index < 0 || section_index >= file->nb_sections) return NULL;
197 section = file->sections[section_index];
198 for (i = 0, line = section->lines; i < section->nb_lines; i++, line++)
200 if (line->key_field == -1) continue;
201 if (!strcmpiW( name, file->fields[line->key_field].text )) return line;
207 /* add a section to the file and return the section index */
208 static int add_section( struct inf_file *file, const WCHAR *name )
210 struct section *section;
212 if (file->nb_sections >= file->alloc_sections)
214 if (!(file->sections = grow_array( file->sections, &file->alloc_sections,
215 sizeof(file->sections[0]) ))) return -1;
217 if (!(section = HeapAlloc( GetProcessHeap(), 0, sizeof(*section) ))) return -1;
218 section->name = name;
219 section->nb_lines = 0;
220 section->alloc_lines = sizeof(section->lines)/sizeof(section->lines[0]);
221 file->sections[file->nb_sections] = section;
222 return file->nb_sections++;
226 /* add a line to a given section */
227 static struct line *add_line( struct inf_file *file, int section_index )
229 struct section *section;
232 assert( section_index >= 0 && section_index < file->nb_sections );
234 section = file->sections[section_index];
235 if (section->nb_lines == section->alloc_lines) /* need to grow the section */
237 int size = sizeof(*section) - sizeof(section->lines) + 2*section->alloc_lines*sizeof(*line);
238 if (!(section = HeapReAlloc( GetProcessHeap(), 0, section, size ))) return NULL;
239 section->alloc_lines *= 2;
240 file->sections[section_index] = section;
242 line = §ion->lines[section->nb_lines++];
243 line->first_field = file->nb_fields;
245 line->key_field = -1;
250 /* retrieve a given line from section/line index */
251 inline static struct line *get_line( struct inf_file *file, unsigned int section_index,
252 unsigned int line_index )
254 struct section *section;
256 if (section_index >= file->nb_sections) return NULL;
257 section = file->sections[section_index];
258 if (line_index >= section->nb_lines) return NULL;
259 return §ion->lines[line_index];
263 /* retrieve a given field from section/line/field index */
264 static struct field *get_field( struct inf_file *file, int section_index, int line_index,
267 struct line *line = get_line( file, section_index, line_index );
269 if (!line) return NULL;
270 if (!field_index) /* get the key */
272 if (line->key_field == -1) return NULL;
273 return &file->fields[line->key_field];
276 if (field_index >= line->nb_fields) return NULL;
277 return &file->fields[line->first_field + field_index];
281 /* allocate a new field, growing the array if necessary */
282 static struct field *add_field( struct inf_file *file, const WCHAR *text )
286 if (file->nb_fields >= file->alloc_fields)
288 if (!(file->fields = grow_array( file->fields, &file->alloc_fields,
289 sizeof(file->fields[0]) ))) return NULL;
291 field = &file->fields[file->nb_fields++];
297 /* retrieve the string substitution for a directory id */
298 static const WCHAR *get_dirid_subst( int dirid, unsigned int *len )
300 extern const WCHAR *DIRID_get_string( HINF hinf, int dirid );
301 const WCHAR *ret = DIRID_get_string( 0, dirid );
302 if (ret) *len = strlenW(ret);
307 /* retrieve the string substitution for a given string, or NULL if not found */
308 /* if found, len is set to the substitution length */
309 static const WCHAR *get_string_subst( struct inf_file *file, const WCHAR *str, unsigned int *len )
311 static const WCHAR percent = '%';
313 struct section *strings_section;
317 WCHAR *dirid_str, *end;
318 const WCHAR *ret = NULL;
320 if (!*len) /* empty string (%%) is replaced by single percent */
325 if (file->strings_section == -1) goto not_found;
326 strings_section = file->sections[file->strings_section];
327 for (i = 0, line = strings_section->lines; i < strings_section->nb_lines; i++, line++)
329 if (line->key_field == -1) continue;
330 if (strncmpiW( str, file->fields[line->key_field].text, *len )) continue;
331 if (!file->fields[line->key_field].text[*len]) break;
333 if (i == strings_section->nb_lines || !line->nb_fields) goto not_found;
334 field = &file->fields[line->first_field];
335 *len = strlenW( field->text );
338 not_found: /* check for integer id */
339 if ((dirid_str = HeapAlloc( GetProcessHeap(), 0, (*len+1) * sizeof(WCHAR) )))
341 memcpy( dirid_str, str, *len * sizeof(WCHAR) );
343 dirid = strtolW( dirid_str, &end, 10 );
344 if (!*end) ret = get_dirid_subst( dirid, len );
345 HeapFree( GetProcessHeap(), 0, dirid_str );
352 /* do string substitutions on the specified text */
353 /* the buffer is assumed to be large enough */
354 /* returns necessary length not including terminating null */
355 unsigned int PARSER_string_substW( struct inf_file *file, const WCHAR *text, WCHAR *buffer,
358 const WCHAR *start, *subst, *p;
359 unsigned int len, total = 0;
362 if (!buffer) size = MAX_STRING_LEN + 1;
363 for (p = start = text; *p; p++)
365 if (*p != '%') continue;
367 if (inside) /* start of a %xx% string */
370 if (len > size - 1) len = size - 1;
371 if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) );
376 else /* end of the %xx% string, find substitution */
379 subst = get_string_subst( file, start + 1, &len );
385 if (len > size - 1) len = size - 1;
386 if (buffer) memcpy( buffer + total, subst, len * sizeof(WCHAR) );
393 if (start != p) /* unfinished string, copy it */
396 if (len > size - 1) len = size - 1;
397 if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) );
400 if (buffer && size) buffer[total] = 0;
405 /* do string substitutions on the specified text */
406 /* the buffer is assumed to be large enough */
407 /* returns necessary length not including terminating null */
408 unsigned int PARSER_string_substA( struct inf_file *file, const WCHAR *text, char *buffer,
411 WCHAR buffW[MAX_STRING_LEN+1];
414 unsigned int len = PARSER_string_substW( file, text, buffW, sizeof(buffW)/sizeof(WCHAR) );
415 if (!buffer) RtlUnicodeToMultiByteSize( &ret, buffW, len * sizeof(WCHAR) );
418 RtlUnicodeToMultiByteN( buffer, size-1, &ret, buffW, len * sizeof(WCHAR) );
425 /* push some string data into the strings buffer */
426 static WCHAR *push_string( struct inf_file *file, const WCHAR *string )
428 WCHAR *ret = file->string_pos;
429 strcpyW( ret, string );
430 file->string_pos += strlenW( ret ) + 1;
435 /* push the current state on the parser stack */
436 inline static void push_state( struct parser *parser, enum parser_state state )
438 assert( parser->stack_pos < sizeof(parser->stack)/sizeof(parser->stack[0]) );
439 parser->stack[parser->stack_pos++] = state;
443 /* pop the current state */
444 inline static void pop_state( struct parser *parser )
446 assert( parser->stack_pos );
447 parser->state = parser->stack[--parser->stack_pos];
451 /* set the parser state and return the previous one */
452 inline static enum parser_state set_state( struct parser *parser, enum parser_state state )
454 enum parser_state ret = parser->state;
455 parser->state = state;
460 /* check if the pointer points to an end of file */
461 inline static int is_eof( struct parser *parser, const WCHAR *ptr )
463 return (ptr >= parser->end || *ptr == CONTROL_Z);
467 /* check if the pointer points to an end of line */
468 inline static int is_eol( struct parser *parser, const WCHAR *ptr )
470 return (ptr >= parser->end || *ptr == CONTROL_Z || *ptr == '\n');
474 /* push data from current token start up to pos into the current token */
475 static int push_token( struct parser *parser, const WCHAR *pos )
477 int len = pos - parser->start;
478 const WCHAR *src = parser->start;
479 WCHAR *dst = parser->token + parser->token_len;
481 if (len > MAX_FIELD_LEN - parser->token_len) len = MAX_FIELD_LEN - parser->token_len;
483 parser->token_len += len;
484 for ( ; len > 0; len--, dst++, src++) *dst = *src ? *src : ' ';
491 /* add a section with the current token as name */
492 static int add_section_from_token( struct parser *parser )
496 if (parser->token_len > MAX_SECTION_NAME_LEN)
498 parser->error = ERROR_SECTION_NAME_TOO_LONG;
501 if ((section_index = find_section( parser->file, parser->token )) == -1)
503 /* need to create a new one */
504 const WCHAR *name = push_string( parser->file, parser->token );
505 if ((section_index = add_section( parser->file, name )) == -1)
507 parser->error = ERROR_NOT_ENOUGH_MEMORY;
511 parser->token_len = 0;
512 parser->cur_section = section_index;
513 return section_index;
517 /* add a field containing the current token to the current line */
518 static struct field *add_field_from_token( struct parser *parser, int is_key )
523 if (!parser->line) /* need to start a new line */
525 if (parser->cur_section == -1) /* got a line before the first section */
527 parser->error = ERROR_WRONG_INF_STYLE;
530 if (!(parser->line = add_line( parser->file, parser->cur_section ))) goto error;
532 else assert(!is_key);
534 text = push_string( parser->file, parser->token );
535 if ((field = add_field( parser->file, text )))
537 if (!is_key) parser->line->nb_fields++;
540 /* replace first field by key field */
541 parser->line->key_field = parser->line->first_field;
542 parser->line->first_field++;
544 parser->token_len = 0;
548 parser->error = ERROR_NOT_ENOUGH_MEMORY;
553 /* close the current line and prepare for parsing a new one */
554 static void close_current_line( struct parser *parser )
556 struct line *cur_line = parser->line;
560 /* if line has a single field and no key, the field is the key too */
561 if (cur_line->nb_fields == 1 && cur_line->key_field == -1)
562 cur_line->key_field = cur_line->first_field;
568 /* handler for parser LINE_START state */
569 static const WCHAR *line_start_state( struct parser *parser, const WCHAR *pos )
573 for (p = pos; !is_eof( parser, p ); p++)
579 close_current_line( parser );
582 push_state( parser, LINE_START );
583 set_state( parser, COMMENT );
586 parser->start = p + 1;
587 set_state( parser, SECTION_NAME );
593 set_state( parser, KEY_NAME );
599 close_current_line( parser );
604 /* handler for parser SECTION_NAME state */
605 static const WCHAR *section_name_state( struct parser *parser, const WCHAR *pos )
609 for (p = pos; !is_eol( parser, p ); p++)
613 push_token( parser, p );
614 if (add_section_from_token( parser ) == -1) return NULL;
615 push_state( parser, LINE_START );
616 set_state( parser, COMMENT ); /* ignore everything else on the line */
620 parser->error = ERROR_BAD_SECTION_NAME_LINE; /* unfinished section name */
625 /* handler for parser KEY_NAME state */
626 static const WCHAR *key_name_state( struct parser *parser, const WCHAR *pos )
628 const WCHAR *p, *token_end = parser->start;
630 for (p = pos; !is_eol( parser, p ); p++)
632 if (*p == ',') break;
637 push_token( parser, token_end );
638 if (!add_field_from_token( parser, 1 )) return NULL;
639 parser->start = p + 1;
640 push_state( parser, VALUE_NAME );
641 set_state( parser, LEADING_SPACES );
644 push_token( parser, token_end );
645 if (!add_field_from_token( parser, 0 )) return NULL;
646 push_state( parser, LINE_START );
647 set_state( parser, COMMENT );
650 push_token( parser, token_end );
651 parser->start = p + 1;
652 push_state( parser, KEY_NAME );
653 set_state( parser, QUOTES );
656 push_token( parser, token_end );
658 push_state( parser, KEY_NAME );
659 set_state( parser, EOL_BACKSLASH );
662 if (!isspaceW(*p)) token_end = p + 1;
665 push_token( parser, p );
666 push_state( parser, KEY_NAME );
667 set_state( parser, TRAILING_SPACES );
673 push_token( parser, token_end );
674 set_state( parser, VALUE_NAME );
679 /* handler for parser VALUE_NAME state */
680 static const WCHAR *value_name_state( struct parser *parser, const WCHAR *pos )
682 const WCHAR *p, *token_end = parser->start;
684 for (p = pos; !is_eol( parser, p ); p++)
689 push_token( parser, token_end );
690 if (!add_field_from_token( parser, 0 )) return NULL;
691 push_state( parser, LINE_START );
692 set_state( parser, COMMENT );
695 push_token( parser, token_end );
696 if (!add_field_from_token( parser, 0 )) return NULL;
697 parser->start = p + 1;
698 push_state( parser, VALUE_NAME );
699 set_state( parser, LEADING_SPACES );
702 push_token( parser, token_end );
703 parser->start = p + 1;
704 push_state( parser, VALUE_NAME );
705 set_state( parser, QUOTES );
708 push_token( parser, token_end );
710 push_state( parser, VALUE_NAME );
711 set_state( parser, EOL_BACKSLASH );
714 if (!isspaceW(*p)) token_end = p + 1;
717 push_token( parser, p );
718 push_state( parser, VALUE_NAME );
719 set_state( parser, TRAILING_SPACES );
725 push_token( parser, token_end );
726 if (!add_field_from_token( parser, 0 )) return NULL;
727 set_state( parser, LINE_START );
732 /* handler for parser EOL_BACKSLASH state */
733 static const WCHAR *eol_backslash_state( struct parser *parser, const WCHAR *pos )
737 for (p = pos; !is_eof( parser, p ); p++)
743 parser->start = p + 1;
744 set_state( parser, LEADING_SPACES );
749 push_state( parser, EOL_BACKSLASH );
750 set_state( parser, COMMENT );
753 if (isspaceW(*p)) continue;
754 push_token( parser, p );
765 /* handler for parser QUOTES state */
766 static const WCHAR *quotes_state( struct parser *parser, const WCHAR *pos )
768 const WCHAR *p, *token_end = parser->start;
770 for (p = pos; !is_eol( parser, p ); p++)
774 if (p+1 < parser->end && p[1] == '"') /* double quotes */
776 push_token( parser, p + 1 );
777 parser->start = token_end = p + 2;
780 else /* end of quotes */
782 push_token( parser, p );
783 parser->start = p + 1;
789 push_token( parser, p );
795 /* handler for parser LEADING_SPACES state */
796 static const WCHAR *leading_spaces_state( struct parser *parser, const WCHAR *pos )
800 for (p = pos; !is_eol( parser, p ); p++)
805 set_state( parser, EOL_BACKSLASH );
808 if (!isspaceW(*p)) break;
816 /* handler for parser TRAILING_SPACES state */
817 static const WCHAR *trailing_spaces_state( struct parser *parser, const WCHAR *pos )
821 for (p = pos; !is_eol( parser, p ); p++)
825 set_state( parser, EOL_BACKSLASH );
828 if (!isspaceW(*p)) break;
835 /* handler for parser COMMENT state */
836 static const WCHAR *comment_state( struct parser *parser, const WCHAR *pos )
838 const WCHAR *p = pos;
840 while (!is_eol( parser, p )) p++;
846 /* parse a complete buffer */
847 static DWORD parse_buffer( struct inf_file *file, const WCHAR *buffer, const WCHAR *end,
850 static const WCHAR Strings[] = {'S','t','r','i','n','g','s',0};
852 struct parser parser;
853 const WCHAR *pos = buffer;
855 parser.start = buffer;
859 parser.state = LINE_START;
860 parser.stack_pos = 0;
861 parser.cur_section = -1;
864 parser.token_len = 0;
866 /* parser main loop */
867 while (pos) pos = (parser_funcs[parser.state])( &parser, pos );
869 /* trim excess buffer space */
870 if (file->alloc_sections > file->nb_sections)
872 file->sections = HeapReAlloc( GetProcessHeap(), 0, file->sections,
873 file->nb_sections * sizeof(file->sections[0]) );
874 file->alloc_sections = file->nb_sections;
876 if (file->alloc_fields > file->nb_fields)
878 file->fields = HeapReAlloc( GetProcessHeap(), 0, file->fields,
879 file->nb_fields * sizeof(file->fields[0]) );
880 file->alloc_fields = file->nb_fields;
882 file->strings = HeapReAlloc( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, file->strings,
883 (file->string_pos - file->strings) * sizeof(WCHAR) );
887 if (error_line) *error_line = parser.line_pos;
891 /* find the [strings] section */
892 file->strings_section = find_section( file, Strings );
897 /* append a child INF file to its parent list, in a thread-safe manner */
898 static void append_inf_file( struct inf_file *parent, struct inf_file *child )
900 struct inf_file **ppnext = &parent->next;
905 struct inf_file *next = InterlockedCompareExchangePointer( (void **)ppnext, child, NULL );
907 ppnext = &next->next;
912 /***********************************************************************
917 static struct inf_file *parse_file( HANDLE handle, const WCHAR *class, UINT *error_line )
921 struct inf_file *file;
923 DWORD size = GetFileSize( handle, NULL );
924 HANDLE mapping = CreateFileMappingW( handle, NULL, PAGE_READONLY, 0, size, NULL );
925 if (!mapping) return NULL;
926 buffer = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, size );
928 if (!buffer) return NULL;
930 if (class) FIXME( "class %s not supported yet\n", debugstr_w(class) );
932 if (!(file = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*file) )))
934 err = ERROR_NOT_ENOUGH_MEMORY;
938 /* we won't need more strings space than the size of the file,
939 * so we can preallocate it here
941 if (!(file->strings = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) )))
943 err = ERROR_NOT_ENOUGH_MEMORY;
946 file->string_pos = file->strings;
947 file->strings_section = -1;
949 if (!RtlIsTextUnicode( buffer, size, NULL ))
951 WCHAR *new_buff = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) );
954 DWORD len = MultiByteToWideChar( CP_ACP, 0, buffer, size, new_buff,
955 size * sizeof(WCHAR) );
956 err = parse_buffer( file, new_buff, new_buff + len, error_line );
957 HeapFree( GetProcessHeap(), 0, new_buff );
960 else err = parse_buffer( file, buffer, (WCHAR *)((char *)buffer + size), error_line );
962 if (!err) /* now check signature */
964 int version_index = find_section( file, Version );
965 if (version_index != -1)
967 struct line *line = find_line( file, version_index, Signature );
968 if (line && line->nb_fields > 0)
970 struct field *field = file->fields + line->first_field;
971 if (!strcmpiW( field->text, Chicago )) goto done;
972 if (!strcmpiW( field->text, WindowsNT )) goto done;
973 if (!strcmpiW( field->text, Windows95 )) goto done;
976 err = ERROR_WRONG_INF_STYLE;
980 UnmapViewOfFile( buffer );
983 HeapFree( GetProcessHeap(), 0, file );
991 /***********************************************************************
992 * PARSER_get_src_root
994 * Retrieve the source directory of an inf file.
996 const WCHAR *PARSER_get_src_root( HINF hinf )
998 struct inf_file *file = hinf;
999 return file->src_root;
1003 /***********************************************************************
1004 * PARSER_get_dest_dir
1006 * retrieve a destination dir of the form "dirid,relative_path" in the given entry.
1007 * returned buffer must be freed by caller.
1009 WCHAR *PARSER_get_dest_dir( INFCONTEXT *context )
1016 if (!SetupGetIntField( context, 1, &dirid )) return NULL;
1017 if (!(dir = DIRID_get_string( context->Inf, dirid ))) return NULL;
1018 len1 = strlenW(dir) + 1;
1019 if (!SetupGetStringFieldW( context, 2, NULL, 0, &len2 )) len2 = 0;
1020 if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len1+len2) * sizeof(WCHAR) ))) return NULL;
1021 strcpyW( ret, dir );
1022 ptr = ret + strlenW(ret);
1023 if (len2 && ptr > ret && ptr[-1] != '\\') *ptr++ = '\\';
1024 if (!SetupGetStringFieldW( context, 2, ptr, len2, NULL )) *ptr = 0;
1029 /***********************************************************************
1030 * SetupOpenInfFileA (SETUPAPI.@)
1032 HINF WINAPI SetupOpenInfFileA( PCSTR name, PCSTR class, DWORD style, UINT *error )
1034 UNICODE_STRING nameW, classW;
1035 HINF ret = (HINF)INVALID_HANDLE_VALUE;
1037 classW.Buffer = NULL;
1038 if (class && !RtlCreateUnicodeStringFromAsciiz( &classW, class ))
1040 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1043 if (RtlCreateUnicodeStringFromAsciiz( &nameW, name ))
1045 ret = SetupOpenInfFileW( nameW.Buffer, classW.Buffer, style, error );
1046 RtlFreeUnicodeString( &nameW );
1048 RtlFreeUnicodeString( &classW );
1053 /***********************************************************************
1054 * SetupOpenInfFileW (SETUPAPI.@)
1056 HINF WINAPI SetupOpenInfFileW( PCWSTR name, PCWSTR class, DWORD style, UINT *error )
1058 struct inf_file *file = NULL;
1063 if (strchrW( name, '\\' ) || strchrW( name, '/' ))
1065 if (!(len = GetFullPathNameW( name, 0, NULL, NULL ))) return (HINF)INVALID_HANDLE_VALUE;
1066 if (!(path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
1068 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1069 return (HINF)INVALID_HANDLE_VALUE;
1071 GetFullPathNameW( name, len, path, NULL );
1072 handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1074 else /* try Windows directory */
1076 static const WCHAR Inf[] = {'\\','i','n','f','\\',0};
1077 static const WCHAR System32[] = {'\\','s','y','s','t','e','m','3','2','\\',0};
1079 len = GetWindowsDirectoryW( NULL, 0 ) + strlenW(name) + 12;
1080 if (!(path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
1082 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1083 return (HINF)INVALID_HANDLE_VALUE;
1085 GetWindowsDirectoryW( path, len );
1086 p = path + strlenW(path);
1089 handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1090 if (handle == INVALID_HANDLE_VALUE)
1092 strcpyW( p, System32 );
1094 handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
1098 if (handle != INVALID_HANDLE_VALUE)
1100 file = parse_file( handle, class, error );
1101 CloseHandle( handle );
1105 HeapFree( GetProcessHeap(), 0, path );
1106 return (HINF)INVALID_HANDLE_VALUE;
1108 TRACE( "%s -> %p\n", debugstr_w(path), file );
1109 file->src_root = path;
1110 if ((p = strrchrW( path, '\\' ))) p[1] = 0; /* remove file name */
1116 /***********************************************************************
1117 * SetupOpenAppendInfFileA (SETUPAPI.@)
1119 BOOL WINAPI SetupOpenAppendInfFileA( PCSTR name, HINF parent_hinf, UINT *error )
1123 if (!name) return SetupOpenAppendInfFileW( NULL, parent_hinf, error );
1124 child_hinf = SetupOpenInfFileA( name, NULL, INF_STYLE_WIN4, error );
1125 if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE;
1126 append_inf_file( parent_hinf, child_hinf );
1127 TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_a(name), child_hinf );
1132 /***********************************************************************
1133 * SetupOpenAppendInfFileW (SETUPAPI.@)
1135 BOOL WINAPI SetupOpenAppendInfFileW( PCWSTR name, HINF parent_hinf, UINT *error )
1142 WCHAR filename[MAX_PATH];
1145 if (!SetupFindFirstLineW( parent_hinf, Version, LayoutFile, &context )) return FALSE;
1146 while (SetupGetStringFieldW( &context, idx++, filename,
1147 sizeof(filename)/sizeof(WCHAR), NULL ))
1149 child_hinf = SetupOpenInfFileW( filename, NULL, INF_STYLE_WIN4, error );
1150 if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE;
1151 append_inf_file( parent_hinf, child_hinf );
1152 TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_w(filename), child_hinf );
1156 child_hinf = SetupOpenInfFileW( name, NULL, INF_STYLE_WIN4, error );
1157 if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE;
1158 append_inf_file( parent_hinf, child_hinf );
1159 TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_w(name), child_hinf );
1164 /***********************************************************************
1165 * SetupCloseInfFile (SETUPAPI.@)
1167 void WINAPI SetupCloseInfFile( HINF hinf )
1169 struct inf_file *file = hinf;
1172 for (i = 0; i < file->nb_sections; i++) HeapFree( GetProcessHeap(), 0, file->sections[i] );
1173 HeapFree( GetProcessHeap(), 0, file->src_root );
1174 HeapFree( GetProcessHeap(), 0, file->sections );
1175 HeapFree( GetProcessHeap(), 0, file->fields );
1176 HeapFree( GetProcessHeap(), 0, file->strings );
1177 HeapFree( GetProcessHeap(), 0, file );
1181 /***********************************************************************
1182 * SetupGetLineCountA (SETUPAPI.@)
1184 LONG WINAPI SetupGetLineCountA( HINF hinf, PCSTR name )
1186 UNICODE_STRING sectionW;
1189 if (!RtlCreateUnicodeStringFromAsciiz( §ionW, name ))
1190 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1193 ret = SetupGetLineCountW( hinf, sectionW.Buffer );
1194 RtlFreeUnicodeString( §ionW );
1200 /***********************************************************************
1201 * SetupGetLineCountW (SETUPAPI.@)
1203 LONG WINAPI SetupGetLineCountW( HINF hinf, PCWSTR section )
1205 struct inf_file *file = hinf;
1209 for (file = hinf; file; file = file->next)
1211 if ((section_index = find_section( file, section )) == -1) continue;
1212 if (ret == -1) ret = 0;
1213 ret += file->sections[section_index]->nb_lines;
1215 TRACE( "(%p,%s) returning %ld\n", hinf, debugstr_w(section), ret );
1216 SetLastError( (ret == -1) ? ERROR_SECTION_NOT_FOUND : 0 );
1221 /***********************************************************************
1222 * SetupGetLineByIndexA (SETUPAPI.@)
1224 BOOL WINAPI SetupGetLineByIndexA( HINF hinf, PCSTR section, DWORD index, INFCONTEXT *context )
1226 UNICODE_STRING sectionW;
1229 if (!RtlCreateUnicodeStringFromAsciiz( §ionW, section ))
1230 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1233 ret = SetupGetLineByIndexW( hinf, sectionW.Buffer, index, context );
1234 RtlFreeUnicodeString( §ionW );
1240 /***********************************************************************
1241 * SetupGetLineByIndexW (SETUPAPI.@)
1243 BOOL WINAPI SetupGetLineByIndexW( HINF hinf, PCWSTR section, DWORD index, INFCONTEXT *context )
1245 struct inf_file *file = hinf;
1248 SetLastError( ERROR_SECTION_NOT_FOUND );
1249 for (file = hinf; file; file = file->next)
1251 if ((section_index = find_section( file, section )) == -1) continue;
1252 SetLastError( ERROR_LINE_NOT_FOUND );
1253 if (index < file->sections[section_index]->nb_lines)
1255 context->Inf = hinf;
1256 context->CurrentInf = file;
1257 context->Section = section_index;
1258 context->Line = index;
1260 TRACE( "(%p,%s): returning %d/%ld\n",
1261 hinf, debugstr_w(section), section_index, index );
1264 index -= file->sections[section_index]->nb_lines;
1266 TRACE( "(%p,%s) not found\n", hinf, debugstr_w(section) );
1271 /***********************************************************************
1272 * SetupFindFirstLineA (SETUPAPI.@)
1274 BOOL WINAPI SetupFindFirstLineA( HINF hinf, PCSTR section, PCSTR key, INFCONTEXT *context )
1276 UNICODE_STRING sectionW, keyW;
1279 if (!RtlCreateUnicodeStringFromAsciiz( §ionW, section ))
1281 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1285 if (!key) ret = SetupFindFirstLineW( hinf, sectionW.Buffer, NULL, context );
1288 if (RtlCreateUnicodeStringFromAsciiz( &keyW, key ))
1290 ret = SetupFindFirstLineW( hinf, sectionW.Buffer, keyW.Buffer, context );
1291 RtlFreeUnicodeString( &keyW );
1293 else SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1295 RtlFreeUnicodeString( §ionW );
1300 /***********************************************************************
1301 * SetupFindFirstLineW (SETUPAPI.@)
1303 BOOL WINAPI SetupFindFirstLineW( HINF hinf, PCWSTR section, PCWSTR key, INFCONTEXT *context )
1305 struct inf_file *file;
1308 SetLastError( ERROR_SECTION_NOT_FOUND );
1309 for (file = hinf; file; file = file->next)
1311 if ((section_index = find_section( file, section )) == -1) continue;
1316 ctx.CurrentInf = file;
1317 ctx.Section = section_index;
1319 return SetupFindNextMatchLineW( &ctx, key, context );
1321 SetLastError( ERROR_LINE_NOT_FOUND ); /* found at least one section */
1322 if (file->sections[section_index]->nb_lines)
1324 context->Inf = hinf;
1325 context->CurrentInf = file;
1326 context->Section = section_index;
1329 TRACE( "(%p,%s,%s): returning %d/0\n",
1330 hinf, debugstr_w(section), debugstr_w(key), section_index );
1334 TRACE( "(%p,%s,%s): not found\n", hinf, debugstr_w(section), debugstr_w(key) );
1339 /***********************************************************************
1340 * SetupFindNextLine (SETUPAPI.@)
1342 BOOL WINAPI SetupFindNextLine( PINFCONTEXT context_in, PINFCONTEXT context_out )
1344 struct inf_file *file = context_in->CurrentInf;
1345 struct section *section;
1347 if (context_in->Section >= file->nb_sections) goto error;
1349 section = file->sections[context_in->Section];
1350 if (context_in->Line+1 < section->nb_lines)
1352 if (context_out != context_in) *context_out = *context_in;
1353 context_out->Line++;
1358 /* now search the appended files */
1360 for (file = file->next; file; file = file->next)
1362 int section_index = find_section( file, section->name );
1363 if (section_index == -1) continue;
1364 if (file->sections[section_index]->nb_lines)
1366 context_out->Inf = context_in->Inf;
1367 context_out->CurrentInf = file;
1368 context_out->Section = section_index;
1369 context_out->Line = 0;
1375 SetLastError( ERROR_LINE_NOT_FOUND );
1380 /***********************************************************************
1381 * SetupFindNextMatchLineA (SETUPAPI.@)
1383 BOOL WINAPI SetupFindNextMatchLineA( PINFCONTEXT context_in, PCSTR key,
1384 PINFCONTEXT context_out )
1386 UNICODE_STRING keyW;
1389 if (!key) return SetupFindNextLine( context_in, context_out );
1391 if (!RtlCreateUnicodeStringFromAsciiz( &keyW, key ))
1392 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1395 ret = SetupFindNextMatchLineW( context_in, keyW.Buffer, context_out );
1396 RtlFreeUnicodeString( &keyW );
1402 /***********************************************************************
1403 * SetupFindNextMatchLineW (SETUPAPI.@)
1405 BOOL WINAPI SetupFindNextMatchLineW( PINFCONTEXT context_in, PCWSTR key,
1406 PINFCONTEXT context_out )
1408 struct inf_file *file = context_in->CurrentInf;
1409 struct section *section;
1413 if (!key) return SetupFindNextLine( context_in, context_out );
1415 if (context_in->Section >= file->nb_sections) goto error;
1417 section = file->sections[context_in->Section];
1419 for (i = context_in->Line+1, line = §ion->lines[i]; i < section->nb_lines; i++, line++)
1421 if (line->key_field == -1) continue;
1422 if (!strcmpiW( key, file->fields[line->key_field].text ))
1424 if (context_out != context_in) *context_out = *context_in;
1425 context_out->Line = i;
1427 TRACE( "(%p,%s,%s): returning %d\n",
1428 file, debugstr_w(section->name), debugstr_w(key), i );
1433 /* now search the appended files */
1435 for (file = file->next; file; file = file->next)
1437 int section_index = find_section( file, section->name );
1438 if (section_index == -1) continue;
1439 section = file->sections[section_index];
1440 for (i = 0, line = section->lines; i < section->nb_lines; i++, line++)
1442 if (line->key_field == -1) continue;
1443 if (!strcmpiW( key, file->fields[line->key_field].text ))
1445 context_out->Inf = context_in->Inf;
1446 context_out->CurrentInf = file;
1447 context_out->Section = section_index;
1448 context_out->Line = i;
1450 TRACE( "(%p,%s,%s): returning %d/%d\n",
1451 file, debugstr_w(section->name), debugstr_w(key), section_index, i );
1456 TRACE( "(%p,%s,%s): not found\n",
1457 context_in->CurrentInf, debugstr_w(section->name), debugstr_w(key) );
1459 SetLastError( ERROR_LINE_NOT_FOUND );
1464 /***********************************************************************
1465 * SetupGetLineTextW (SETUPAPI.@)
1467 BOOL WINAPI SetupGetLineTextW( PINFCONTEXT context, HINF hinf, PCWSTR section_name,
1468 PCWSTR key_name, PWSTR buffer, DWORD size, PDWORD required )
1470 struct inf_file *file;
1472 struct field *field;
1478 INFCONTEXT new_context;
1479 if (!SetupFindFirstLineW( hinf, section_name, key_name, &new_context )) return FALSE;
1480 file = new_context.CurrentInf;
1481 line = get_line( file, new_context.Section, new_context.Line );
1485 file = context->CurrentInf;
1486 if (!(line = get_line( file, context->Section, context->Line )))
1488 SetLastError( ERROR_LINE_NOT_FOUND );
1493 for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++)
1494 total += PARSER_string_substW( file, field->text, NULL, 0 ) + 1;
1496 if (required) *required = total;
1501 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1504 for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++)
1506 unsigned int len = PARSER_string_substW( file, field->text, buffer, size );
1507 if (i+1 < line->nb_fields) buffer[len] = ',';
1515 /***********************************************************************
1516 * SetupGetLineTextA (SETUPAPI.@)
1518 BOOL WINAPI SetupGetLineTextA( PINFCONTEXT context, HINF hinf, PCSTR section_name,
1519 PCSTR key_name, PSTR buffer, DWORD size, PDWORD required )
1521 struct inf_file *file;
1523 struct field *field;
1529 INFCONTEXT new_context;
1530 if (!SetupFindFirstLineA( hinf, section_name, key_name, &new_context )) return FALSE;
1531 file = new_context.CurrentInf;
1532 line = get_line( file, new_context.Section, new_context.Line );
1536 file = context->CurrentInf;
1537 if (!(line = get_line( file, context->Section, context->Line )))
1539 SetLastError( ERROR_LINE_NOT_FOUND );
1544 for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++)
1545 total += PARSER_string_substA( file, field->text, NULL, 0 ) + 1;
1547 if (required) *required = total;
1552 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1555 for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++)
1557 unsigned int len = PARSER_string_substA( file, field->text, buffer, size );
1558 if (i+1 < line->nb_fields) buffer[len] = ',';
1566 /***********************************************************************
1567 * SetupGetFieldCount (SETUPAPI.@)
1569 DWORD WINAPI SetupGetFieldCount( PINFCONTEXT context )
1571 struct inf_file *file = context->CurrentInf;
1572 struct line *line = get_line( file, context->Section, context->Line );
1574 if (!line) return 0;
1575 return line->nb_fields;
1579 /***********************************************************************
1580 * SetupGetStringFieldA (SETUPAPI.@)
1582 BOOL WINAPI SetupGetStringFieldA( PINFCONTEXT context, DWORD index, PSTR buffer,
1583 DWORD size, PDWORD required )
1585 struct inf_file *file = context->CurrentInf;
1586 struct field *field = get_field( file, context->Section, context->Line, index );
1590 if (!field) return FALSE;
1591 len = PARSER_string_substA( file, field->text, NULL, 0 );
1592 if (required) *required = len + 1;
1597 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1600 PARSER_string_substA( file, field->text, buffer, size );
1602 TRACE( "context %p/%p/%d/%d index %ld returning %s\n",
1603 context->Inf, context->CurrentInf, context->Section, context->Line,
1604 index, debugstr_a(buffer) );
1610 /***********************************************************************
1611 * SetupGetStringFieldW (SETUPAPI.@)
1613 BOOL WINAPI SetupGetStringFieldW( PINFCONTEXT context, DWORD index, PWSTR buffer,
1614 DWORD size, PDWORD required )
1616 struct inf_file *file = context->CurrentInf;
1617 struct field *field = get_field( file, context->Section, context->Line, index );
1621 if (!field) return FALSE;
1622 len = PARSER_string_substW( file, field->text, NULL, 0 );
1623 if (required) *required = len + 1;
1628 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1631 PARSER_string_substW( file, field->text, buffer, size );
1633 TRACE( "context %p/%p/%d/%d index %ld returning %s\n",
1634 context->Inf, context->CurrentInf, context->Section, context->Line,
1635 index, debugstr_w(buffer) );
1641 /***********************************************************************
1642 * SetupGetIntField (SETUPAPI.@)
1644 BOOL WINAPI SetupGetIntField( PINFCONTEXT context, DWORD index, PINT result )
1647 char *end, *buffer = localbuff;
1652 if (!SetupGetStringFieldA( context, index, localbuff, sizeof(localbuff), &required ))
1654 if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) return FALSE;
1655 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, required ))) return FALSE;
1656 if (!SetupGetStringFieldA( context, index, buffer, required, NULL )) goto done;
1658 res = strtol( buffer, &end, 0 );
1659 if (end != buffer && !*end)
1664 else SetLastError( ERROR_INVALID_DATA );
1667 if (buffer != localbuff) HeapFree( GetProcessHeap(), 0, buffer );
1672 /***********************************************************************
1673 * SetupGetBinaryField (SETUPAPI.@)
1675 BOOL WINAPI SetupGetBinaryField( PINFCONTEXT context, DWORD index, BYTE *buffer,
1676 DWORD size, LPDWORD required )
1678 struct inf_file *file = context->CurrentInf;
1679 struct line *line = get_line( file, context->Section, context->Line );
1680 struct field *field;
1685 SetLastError( ERROR_LINE_NOT_FOUND );
1688 if (!index || index >= line->nb_fields)
1690 SetLastError( ERROR_INVALID_PARAMETER );
1693 index--; /* fields start at 0 */
1694 if (required) *required = line->nb_fields - index;
1695 if (!buffer) return TRUE;
1696 if (size < line->nb_fields - index)
1698 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1701 field = &file->fields[line->first_field + index];
1702 for (i = index; i < line->nb_fields; i++, field++)
1706 for (p = field->text; *p && isxdigitW(*p); p++)
1708 if ((value <<= 4) > 255)
1710 SetLastError( ERROR_INVALID_DATA );
1713 if (*p <= '9') value |= (*p - '0');
1714 else value |= (tolowerW(*p) - 'a' + 10);
1716 buffer[i - index] = value;
1718 if (TRACE_ON(setupapi))
1720 TRACE( "%p/%p/%d/%d index %ld returning",
1721 context->Inf, context->CurrentInf, context->Section, context->Line, index );
1722 for (i = index; i < line->nb_fields; i++) TRACE( " %02x", buffer[i - index] );
1729 /***********************************************************************
1730 * SetupGetMultiSzFieldA (SETUPAPI.@)
1732 BOOL WINAPI SetupGetMultiSzFieldA( PINFCONTEXT context, DWORD index, PSTR buffer,
1733 DWORD size, LPDWORD required )
1735 struct inf_file *file = context->CurrentInf;
1736 struct line *line = get_line( file, context->Section, context->Line );
1737 struct field *field;
1744 SetLastError( ERROR_LINE_NOT_FOUND );
1747 if (!index || index >= line->nb_fields)
1749 SetLastError( ERROR_INVALID_PARAMETER );
1752 index--; /* fields start at 0 */
1753 field = &file->fields[line->first_field + index];
1754 for (i = index; i < line->nb_fields; i++, field++)
1756 if (!(len = PARSER_string_substA( file, field->text, NULL, 0 ))) break;
1760 if (required) *required = total;
1761 if (!buffer) return TRUE;
1764 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1767 field = &file->fields[line->first_field + index];
1768 for (i = index; i < line->nb_fields; i++, field++)
1770 if (!(len = PARSER_string_substA( file, field->text, buffer, size ))) break;
1773 *buffer = 0; /* add final null */
1778 /***********************************************************************
1779 * SetupGetMultiSzFieldW (SETUPAPI.@)
1781 BOOL WINAPI SetupGetMultiSzFieldW( PINFCONTEXT context, DWORD index, PWSTR buffer,
1782 DWORD size, LPDWORD required )
1784 struct inf_file *file = context->CurrentInf;
1785 struct line *line = get_line( file, context->Section, context->Line );
1786 struct field *field;
1793 SetLastError( ERROR_LINE_NOT_FOUND );
1796 if (!index || index >= line->nb_fields)
1798 SetLastError( ERROR_INVALID_PARAMETER );
1801 index--; /* fields start at 0 */
1802 field = &file->fields[line->first_field + index];
1803 for (i = index; i < line->nb_fields; i++, field++)
1805 if (!(len = PARSER_string_substW( file, field->text, NULL, 0 ))) break;
1809 if (required) *required = total;
1810 if (!buffer) return TRUE;
1813 SetLastError( ERROR_INSUFFICIENT_BUFFER );
1816 field = &file->fields[line->first_field + index];
1817 for (i = index; i < line->nb_fields; i++, field++)
1819 if (!(len = PARSER_string_substW( file, field->text, buffer, size ))) break;
1822 *buffer = 0; /* add final null */