/* * INF file parsing * * Copyright 2002 Alexandre Julliard for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include <assert.h> #include <limits.h> #include <stdarg.h> #include <string.h> #include <stdlib.h> #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "winnls.h" #include "winreg.h" #include "winternl.h" #include "winerror.h" #include "setupapi.h" #include "setupapi_private.h" #include "wine/unicode.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(setupapi); #define CONTROL_Z '\x1a' #define MAX_SECTION_NAME_LEN 255 #define MAX_FIELD_LEN 511 /* larger fields get silently truncated */ /* actual string limit is MAX_INF_STRING_LENGTH+1 (plus terminating null) under Windows */ #define MAX_STRING_LEN (MAX_INF_STRING_LENGTH+1) /* inf file structure definitions */ struct field { const WCHAR *text; /* field text */ }; struct line { int first_field; /* index of first field in field array */ int nb_fields; /* number of fields in line */ int key_field; /* index of field for key or -1 if no key */ }; struct section { const WCHAR *name; /* section name */ unsigned int nb_lines; /* number of used lines */ unsigned int alloc_lines; /* total number of allocated lines in array below */ struct line lines[16]; /* lines information (grown dynamically, 16 is initial size) */ }; struct inf_file { struct inf_file *next; /* next appended file */ WCHAR *strings; /* buffer for string data (section names and field values) */ WCHAR *string_pos; /* position of next available string in buffer */ unsigned int nb_sections; /* number of used sections */ unsigned int alloc_sections; /* total number of allocated section pointers */ struct section **sections; /* section pointers array */ unsigned int nb_fields; unsigned int alloc_fields; struct field *fields; int strings_section; /* index of [Strings] section or -1 if none */ WCHAR *src_root; /* source root directory */ }; /* parser definitions */ enum parser_state { LINE_START, /* at beginning of a line */ SECTION_NAME, /* parsing a section name */ KEY_NAME, /* parsing a key name */ VALUE_NAME, /* parsing a value name */ EOL_BACKSLASH, /* backslash at end of line */ QUOTES, /* inside quotes */ LEADING_SPACES, /* leading spaces */ TRAILING_SPACES, /* trailing spaces */ COMMENT, /* inside a comment */ NB_PARSER_STATES }; struct parser { const WCHAR *start; /* start position of item being parsed */ const WCHAR *end; /* end of buffer */ struct inf_file *file; /* file being built */ enum parser_state state; /* current parser state */ enum parser_state stack[4]; /* state stack */ int stack_pos; /* current pos in stack */ int cur_section; /* index of section being parsed*/ struct line *line; /* current line */ unsigned int line_pos; /* current line position in file */ unsigned int error; /* error code */ unsigned int token_len; /* current token len */ WCHAR token[MAX_FIELD_LEN+1]; /* current token */ }; typedef const WCHAR * (*parser_state_func)( struct parser *parser, const WCHAR *pos ); /* parser state machine functions */ static const WCHAR *line_start_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *section_name_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *key_name_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *value_name_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *eol_backslash_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *quotes_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *leading_spaces_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *trailing_spaces_state( struct parser *parser, const WCHAR *pos ); static const WCHAR *comment_state( struct parser *parser, const WCHAR *pos ); static const parser_state_func parser_funcs[NB_PARSER_STATES] = { line_start_state, /* LINE_START */ section_name_state, /* SECTION_NAME */ key_name_state, /* KEY_NAME */ value_name_state, /* VALUE_NAME */ eol_backslash_state, /* EOL_BACKSLASH */ quotes_state, /* QUOTES */ leading_spaces_state, /* LEADING_SPACES */ trailing_spaces_state, /* TRAILING_SPACES */ comment_state /* COMMENT */ }; /* Unicode string constants */ static const WCHAR Version[] = {'V','e','r','s','i','o','n',0}; static const WCHAR Signature[] = {'S','i','g','n','a','t','u','r','e',0}; static const WCHAR Chicago[] = {'$','C','h','i','c','a','g','o','$',0}; static const WCHAR WindowsNT[] = {'$','W','i','n','d','o','w','s',' ','N','T','$',0}; static const WCHAR Windows95[] = {'$','W','i','n','d','o','w','s',' ','9','5','$',0}; static const WCHAR LayoutFile[] = {'L','a','y','o','u','t','F','i','l','e',0}; /* extend an array, allocating more memory if necessary */ static void *grow_array( void *array, unsigned int *count, size_t elem ) { void *new_array; unsigned int new_count = *count + *count / 2; if (new_count < 32) new_count = 32; if (array) new_array = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, array, new_count * elem ); else new_array = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, new_count * elem ); if (new_array) *count = new_count; else if (array) HeapFree( GetProcessHeap(), 0, array ); return new_array; } /* find a section by name */ static int find_section( struct inf_file *file, const WCHAR *name ) { int i; for (i = 0; i < file->nb_sections; i++) if (!strcmpiW( name, file->sections[i]->name )) return i; return -1; } /* find a line by name */ static struct line *find_line( struct inf_file *file, int section_index, const WCHAR *name ) { struct section *section; struct line *line; int i; if (section_index < 0 || section_index >= file->nb_sections) return NULL; section = file->sections[section_index]; for (i = 0, line = section->lines; i < section->nb_lines; i++, line++) { if (line->key_field == -1) continue; if (!strcmpiW( name, file->fields[line->key_field].text )) return line; } return NULL; } /* add a section to the file and return the section index */ static int add_section( struct inf_file *file, const WCHAR *name ) { struct section *section; if (file->nb_sections >= file->alloc_sections) { if (!(file->sections = grow_array( file->sections, &file->alloc_sections, sizeof(file->sections[0]) ))) return -1; } if (!(section = HeapAlloc( GetProcessHeap(), 0, sizeof(*section) ))) return -1; section->name = name; section->nb_lines = 0; section->alloc_lines = sizeof(section->lines)/sizeof(section->lines[0]); file->sections[file->nb_sections] = section; return file->nb_sections++; } /* add a line to a given section */ static struct line *add_line( struct inf_file *file, int section_index ) { struct section *section; struct line *line; assert( section_index >= 0 && section_index < file->nb_sections ); section = file->sections[section_index]; if (section->nb_lines == section->alloc_lines) /* need to grow the section */ { int size = sizeof(*section) - sizeof(section->lines) + 2*section->alloc_lines*sizeof(*line); if (!(section = HeapReAlloc( GetProcessHeap(), 0, section, size ))) return NULL; section->alloc_lines *= 2; file->sections[section_index] = section; } line = §ion->lines[section->nb_lines++]; line->first_field = file->nb_fields; line->nb_fields = 0; line->key_field = -1; return line; } /* retrieve a given line from section/line index */ inline static struct line *get_line( struct inf_file *file, unsigned int section_index, unsigned int line_index ) { struct section *section; if (section_index >= file->nb_sections) return NULL; section = file->sections[section_index]; if (line_index >= section->nb_lines) return NULL; return §ion->lines[line_index]; } /* retrieve a given field from section/line/field index */ static struct field *get_field( struct inf_file *file, int section_index, int line_index, int field_index ) { struct line *line = get_line( file, section_index, line_index ); if (!line) return NULL; if (!field_index) /* get the key */ { if (line->key_field == -1) return NULL; return &file->fields[line->key_field]; } field_index--; if (field_index >= line->nb_fields) return NULL; return &file->fields[line->first_field + field_index]; } /* allocate a new field, growing the array if necessary */ static struct field *add_field( struct inf_file *file, const WCHAR *text ) { struct field *field; if (file->nb_fields >= file->alloc_fields) { if (!(file->fields = grow_array( file->fields, &file->alloc_fields, sizeof(file->fields[0]) ))) return NULL; } field = &file->fields[file->nb_fields++]; field->text = text; return field; } /* retrieve the string substitution for a directory id */ static const WCHAR *get_dirid_subst( int dirid, unsigned int *len ) { extern const WCHAR *DIRID_get_string( HINF hinf, int dirid ); const WCHAR *ret = DIRID_get_string( 0, dirid ); if (ret) *len = strlenW(ret); return ret; } /* retrieve the string substitution for a given string, or NULL if not found */ /* if found, len is set to the substitution length */ static const WCHAR *get_string_subst( struct inf_file *file, const WCHAR *str, unsigned int *len ) { static const WCHAR percent = '%'; struct section *strings_section; struct line *line; struct field *field; int i, dirid; WCHAR *dirid_str, *end; const WCHAR *ret = NULL; if (!*len) /* empty string (%%) is replaced by single percent */ { *len = 1; return &percent; } if (file->strings_section == -1) goto not_found; strings_section = file->sections[file->strings_section]; for (i = 0, line = strings_section->lines; i < strings_section->nb_lines; i++, line++) { if (line->key_field == -1) continue; if (strncmpiW( str, file->fields[line->key_field].text, *len )) continue; if (!file->fields[line->key_field].text[*len]) break; } if (i == strings_section->nb_lines || !line->nb_fields) goto not_found; field = &file->fields[line->first_field]; *len = strlenW( field->text ); return field->text; not_found: /* check for integer id */ if ((dirid_str = HeapAlloc( GetProcessHeap(), 0, (*len+1) * sizeof(WCHAR) ))) { memcpy( dirid_str, str, *len * sizeof(WCHAR) ); dirid_str[*len] = 0; dirid = strtolW( dirid_str, &end, 10 ); if (!*end) ret = get_dirid_subst( dirid, len ); HeapFree( GetProcessHeap(), 0, dirid_str ); return ret; } return NULL; } /* do string substitutions on the specified text */ /* the buffer is assumed to be large enough */ /* returns necessary length not including terminating null */ unsigned int PARSER_string_substW( struct inf_file *file, const WCHAR *text, WCHAR *buffer, unsigned int size ) { const WCHAR *start, *subst, *p; unsigned int len, total = 0; int inside = 0; if (!buffer) size = MAX_STRING_LEN + 1; for (p = start = text; *p; p++) { if (*p != '%') continue; inside = !inside; if (inside) /* start of a %xx% string */ { len = p - start; if (len > size - 1) len = size - 1; if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) ); total += len; size -= len; start = p; } else /* end of the %xx% string, find substitution */ { len = p - start - 1; subst = get_string_subst( file, start + 1, &len ); if (!subst) { subst = start; len = p - start + 1; } if (len > size - 1) len = size - 1; if (buffer) memcpy( buffer + total, subst, len * sizeof(WCHAR) ); total += len; size -= len; start = p + 1; } } if (start != p) /* unfinished string, copy it */ { len = p - start; if (len > size - 1) len = size - 1; if (buffer) memcpy( buffer + total, start, len * sizeof(WCHAR) ); total += len; } if (buffer && size) buffer[total] = 0; return total; } /* do string substitutions on the specified text */ /* the buffer is assumed to be large enough */ /* returns necessary length not including terminating null */ unsigned int PARSER_string_substA( struct inf_file *file, const WCHAR *text, char *buffer, unsigned int size ) { WCHAR buffW[MAX_STRING_LEN+1]; DWORD ret; unsigned int len = PARSER_string_substW( file, text, buffW, sizeof(buffW)/sizeof(WCHAR) ); if (!buffer) RtlUnicodeToMultiByteSize( &ret, buffW, len * sizeof(WCHAR) ); else { RtlUnicodeToMultiByteN( buffer, size-1, &ret, buffW, len * sizeof(WCHAR) ); buffer[ret] = 0; } return ret; } /* push some string data into the strings buffer */ static WCHAR *push_string( struct inf_file *file, const WCHAR *string ) { WCHAR *ret = file->string_pos; strcpyW( ret, string ); file->string_pos += strlenW( ret ) + 1; return ret; } /* push the current state on the parser stack */ inline static void push_state( struct parser *parser, enum parser_state state ) { assert( parser->stack_pos < sizeof(parser->stack)/sizeof(parser->stack[0]) ); parser->stack[parser->stack_pos++] = state; } /* pop the current state */ inline static void pop_state( struct parser *parser ) { assert( parser->stack_pos ); parser->state = parser->stack[--parser->stack_pos]; } /* set the parser state and return the previous one */ inline static enum parser_state set_state( struct parser *parser, enum parser_state state ) { enum parser_state ret = parser->state; parser->state = state; return ret; } /* check if the pointer points to an end of file */ inline static int is_eof( struct parser *parser, const WCHAR *ptr ) { return (ptr >= parser->end || *ptr == CONTROL_Z); } /* check if the pointer points to an end of line */ inline static int is_eol( struct parser *parser, const WCHAR *ptr ) { return (ptr >= parser->end || *ptr == CONTROL_Z || *ptr == '\n'); } /* push data from current token start up to pos into the current token */ static int push_token( struct parser *parser, const WCHAR *pos ) { int len = pos - parser->start; const WCHAR *src = parser->start; WCHAR *dst = parser->token + parser->token_len; if (len > MAX_FIELD_LEN - parser->token_len) len = MAX_FIELD_LEN - parser->token_len; parser->token_len += len; for ( ; len > 0; len--, dst++, src++) *dst = *src ? *src : ' '; *dst = 0; parser->start = pos; return 0; } /* add a section with the current token as name */ static int add_section_from_token( struct parser *parser ) { int section_index; if (parser->token_len > MAX_SECTION_NAME_LEN) { parser->error = ERROR_SECTION_NAME_TOO_LONG; return -1; } if ((section_index = find_section( parser->file, parser->token )) == -1) { /* need to create a new one */ const WCHAR *name = push_string( parser->file, parser->token ); if ((section_index = add_section( parser->file, name )) == -1) { parser->error = ERROR_NOT_ENOUGH_MEMORY; return -1; } } parser->token_len = 0; parser->cur_section = section_index; return section_index; } /* add a field containing the current token to the current line */ static struct field *add_field_from_token( struct parser *parser, int is_key ) { struct field *field; WCHAR *text; if (!parser->line) /* need to start a new line */ { if (parser->cur_section == -1) /* got a line before the first section */ { parser->error = ERROR_WRONG_INF_STYLE; return NULL; } if (!(parser->line = add_line( parser->file, parser->cur_section ))) goto error; } else assert(!is_key); text = push_string( parser->file, parser->token ); if ((field = add_field( parser->file, text ))) { if (!is_key) parser->line->nb_fields++; else { /* replace first field by key field */ parser->line->key_field = parser->line->first_field; parser->line->first_field++; } parser->token_len = 0; return field; } error: parser->error = ERROR_NOT_ENOUGH_MEMORY; return NULL; } /* close the current line and prepare for parsing a new one */ static void close_current_line( struct parser *parser ) { struct line *cur_line = parser->line; if (cur_line) { /* if line has a single field and no key, the field is the key too */ if (cur_line->nb_fields == 1 && cur_line->key_field == -1) cur_line->key_field = cur_line->first_field; } parser->line = NULL; } /* handler for parser LINE_START state */ static const WCHAR *line_start_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p; for (p = pos; !is_eof( parser, p ); p++) { switch(*p) { case '\n': parser->line_pos++; close_current_line( parser ); break; case ';': push_state( parser, LINE_START ); set_state( parser, COMMENT ); return p + 1; case '[': parser->start = p + 1; set_state( parser, SECTION_NAME ); return p + 1; default: if (!isspaceW(*p)) { parser->start = p; set_state( parser, KEY_NAME ); return p; } break; } } close_current_line( parser ); return NULL; } /* handler for parser SECTION_NAME state */ static const WCHAR *section_name_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p; for (p = pos; !is_eol( parser, p ); p++) { if (*p == ']') { push_token( parser, p ); if (add_section_from_token( parser ) == -1) return NULL; push_state( parser, LINE_START ); set_state( parser, COMMENT ); /* ignore everything else on the line */ return p + 1; } } parser->error = ERROR_BAD_SECTION_NAME_LINE; /* unfinished section name */ return NULL; } /* handler for parser KEY_NAME state */ static const WCHAR *key_name_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p, *token_end = parser->start; for (p = pos; !is_eol( parser, p ); p++) { if (*p == ',') break; switch(*p) { case '=': push_token( parser, token_end ); if (!add_field_from_token( parser, 1 )) return NULL; parser->start = p + 1; push_state( parser, VALUE_NAME ); set_state( parser, LEADING_SPACES ); return p + 1; case ';': push_token( parser, token_end ); if (!add_field_from_token( parser, 0 )) return NULL; push_state( parser, LINE_START ); set_state( parser, COMMENT ); return p + 1; case '"': push_token( parser, token_end ); parser->start = p + 1; push_state( parser, KEY_NAME ); set_state( parser, QUOTES ); return p + 1; case '\\': push_token( parser, token_end ); parser->start = p; push_state( parser, KEY_NAME ); set_state( parser, EOL_BACKSLASH ); return p; default: if (!isspaceW(*p)) token_end = p + 1; else { push_token( parser, p ); push_state( parser, KEY_NAME ); set_state( parser, TRAILING_SPACES ); return p; } break; } } push_token( parser, token_end ); set_state( parser, VALUE_NAME ); return p; } /* handler for parser VALUE_NAME state */ static const WCHAR *value_name_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p, *token_end = parser->start; for (p = pos; !is_eol( parser, p ); p++) { switch(*p) { case ';': push_token( parser, token_end ); if (!add_field_from_token( parser, 0 )) return NULL; push_state( parser, LINE_START ); set_state( parser, COMMENT ); return p + 1; case ',': push_token( parser, token_end ); if (!add_field_from_token( parser, 0 )) return NULL; parser->start = p + 1; push_state( parser, VALUE_NAME ); set_state( parser, LEADING_SPACES ); return p + 1; case '"': push_token( parser, token_end ); parser->start = p + 1; push_state( parser, VALUE_NAME ); set_state( parser, QUOTES ); return p + 1; case '\\': push_token( parser, token_end ); parser->start = p; push_state( parser, VALUE_NAME ); set_state( parser, EOL_BACKSLASH ); return p; default: if (!isspaceW(*p)) token_end = p + 1; else { push_token( parser, p ); push_state( parser, VALUE_NAME ); set_state( parser, TRAILING_SPACES ); return p; } break; } } push_token( parser, token_end ); if (!add_field_from_token( parser, 0 )) return NULL; set_state( parser, LINE_START ); return p; } /* handler for parser EOL_BACKSLASH state */ static const WCHAR *eol_backslash_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p; for (p = pos; !is_eof( parser, p ); p++) { switch(*p) { case '\n': parser->line_pos++; parser->start = p + 1; set_state( parser, LEADING_SPACES ); return p + 1; case '\\': continue; case ';': push_state( parser, EOL_BACKSLASH ); set_state( parser, COMMENT ); return p + 1; default: if (isspaceW(*p)) continue; push_token( parser, p ); pop_state( parser ); return p; } } parser->start = p; pop_state( parser ); return p; } /* handler for parser QUOTES state */ static const WCHAR *quotes_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p, *token_end = parser->start; for (p = pos; !is_eol( parser, p ); p++) { if (*p == '"') { if (p+1 < parser->end && p[1] == '"') /* double quotes */ { push_token( parser, p + 1 ); parser->start = token_end = p + 2; p++; } else /* end of quotes */ { push_token( parser, p ); parser->start = p + 1; pop_state( parser ); return p + 1; } } } push_token( parser, p ); pop_state( parser ); return p; } /* handler for parser LEADING_SPACES state */ static const WCHAR *leading_spaces_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p; for (p = pos; !is_eol( parser, p ); p++) { if (*p == '\\') { parser->start = p; set_state( parser, EOL_BACKSLASH ); return p; } if (!isspaceW(*p)) break; } parser->start = p; pop_state( parser ); return p; } /* handler for parser TRAILING_SPACES state */ static const WCHAR *trailing_spaces_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p; for (p = pos; !is_eol( parser, p ); p++) { if (*p == '\\') { set_state( parser, EOL_BACKSLASH ); return p; } if (!isspaceW(*p)) break; } pop_state( parser ); return p; } /* handler for parser COMMENT state */ static const WCHAR *comment_state( struct parser *parser, const WCHAR *pos ) { const WCHAR *p = pos; while (!is_eol( parser, p )) p++; pop_state( parser ); return p; } /* parse a complete buffer */ static DWORD parse_buffer( struct inf_file *file, const WCHAR *buffer, const WCHAR *end, UINT *error_line ) { static const WCHAR Strings[] = {'S','t','r','i','n','g','s',0}; struct parser parser; const WCHAR *pos = buffer; parser.start = buffer; parser.end = end; parser.file = file; parser.line = NULL; parser.state = LINE_START; parser.stack_pos = 0; parser.cur_section = -1; parser.line_pos = 1; parser.error = 0; parser.token_len = 0; /* parser main loop */ while (pos) pos = (parser_funcs[parser.state])( &parser, pos ); /* trim excess buffer space */ if (file->alloc_sections > file->nb_sections) { file->sections = HeapReAlloc( GetProcessHeap(), 0, file->sections, file->nb_sections * sizeof(file->sections[0]) ); file->alloc_sections = file->nb_sections; } if (file->alloc_fields > file->nb_fields) { file->fields = HeapReAlloc( GetProcessHeap(), 0, file->fields, file->nb_fields * sizeof(file->fields[0]) ); file->alloc_fields = file->nb_fields; } file->strings = HeapReAlloc( GetProcessHeap(), HEAP_REALLOC_IN_PLACE_ONLY, file->strings, (file->string_pos - file->strings) * sizeof(WCHAR) ); if (parser.error) { if (error_line) *error_line = parser.line_pos; return parser.error; } /* find the [strings] section */ file->strings_section = find_section( file, Strings ); return 0; } /* append a child INF file to its parent list, in a thread-safe manner */ static void append_inf_file( struct inf_file *parent, struct inf_file *child ) { struct inf_file **ppnext = &parent->next; child->next = NULL; for (;;) { struct inf_file *next = InterlockedCompareExchangePointer( (void **)ppnext, child, NULL ); if (!next) return; ppnext = &next->next; } } /*********************************************************************** * parse_file * * parse an INF file. */ static struct inf_file *parse_file( HANDLE handle, const WCHAR *class, UINT *error_line ) { void *buffer; DWORD err = 0; struct inf_file *file; DWORD size = GetFileSize( handle, NULL ); HANDLE mapping = CreateFileMappingW( handle, NULL, PAGE_READONLY, 0, size, NULL ); if (!mapping) return NULL; buffer = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, size ); NtClose( mapping ); if (!buffer) return NULL; if (class) FIXME( "class %s not supported yet\n", debugstr_w(class) ); if (!(file = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*file) ))) { err = ERROR_NOT_ENOUGH_MEMORY; goto done; } /* we won't need more strings space than the size of the file, * so we can preallocate it here */ if (!(file->strings = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) { err = ERROR_NOT_ENOUGH_MEMORY; goto done; } file->string_pos = file->strings; file->strings_section = -1; if (!RtlIsTextUnicode( buffer, size, NULL )) { WCHAR *new_buff = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ); if (new_buff) { DWORD len = MultiByteToWideChar( CP_ACP, 0, buffer, size, new_buff, size * sizeof(WCHAR) ); err = parse_buffer( file, new_buff, new_buff + len, error_line ); HeapFree( GetProcessHeap(), 0, new_buff ); } } else err = parse_buffer( file, buffer, (WCHAR *)((char *)buffer + size), error_line ); if (!err) /* now check signature */ { int version_index = find_section( file, Version ); if (version_index != -1) { struct line *line = find_line( file, version_index, Signature ); if (line && line->nb_fields > 0) { struct field *field = file->fields + line->first_field; if (!strcmpiW( field->text, Chicago )) goto done; if (!strcmpiW( field->text, WindowsNT )) goto done; if (!strcmpiW( field->text, Windows95 )) goto done; } } err = ERROR_WRONG_INF_STYLE; } done: UnmapViewOfFile( buffer ); if (err) { HeapFree( GetProcessHeap(), 0, file ); SetLastError( err ); file = NULL; } return file; } /*********************************************************************** * PARSER_get_src_root * * Retrieve the source directory of an inf file. */ const WCHAR *PARSER_get_src_root( HINF hinf ) { struct inf_file *file = hinf; return file->src_root; } /*********************************************************************** * PARSER_get_dest_dir * * retrieve a destination dir of the form "dirid,relative_path" in the given entry. * returned buffer must be freed by caller. */ WCHAR *PARSER_get_dest_dir( INFCONTEXT *context ) { const WCHAR *dir; WCHAR *ptr, *ret; INT dirid; DWORD len1, len2; if (!SetupGetIntField( context, 1, &dirid )) return NULL; if (!(dir = DIRID_get_string( context->Inf, dirid ))) return NULL; len1 = strlenW(dir) + 1; if (!SetupGetStringFieldW( context, 2, NULL, 0, &len2 )) len2 = 0; if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len1+len2) * sizeof(WCHAR) ))) return NULL; strcpyW( ret, dir ); ptr = ret + strlenW(ret); if (len2 && ptr > ret && ptr[-1] != '\\') *ptr++ = '\\'; if (!SetupGetStringFieldW( context, 2, ptr, len2, NULL )) *ptr = 0; return ret; } /*********************************************************************** * SetupOpenInfFileA (SETUPAPI.@) */ HINF WINAPI SetupOpenInfFileA( PCSTR name, PCSTR class, DWORD style, UINT *error ) { UNICODE_STRING nameW, classW; HINF ret = (HINF)INVALID_HANDLE_VALUE; classW.Buffer = NULL; if (class && !RtlCreateUnicodeStringFromAsciiz( &classW, class )) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return ret; } if (RtlCreateUnicodeStringFromAsciiz( &nameW, name )) { ret = SetupOpenInfFileW( nameW.Buffer, classW.Buffer, style, error ); RtlFreeUnicodeString( &nameW ); } RtlFreeUnicodeString( &classW ); return ret; } /*********************************************************************** * SetupOpenInfFileW (SETUPAPI.@) */ HINF WINAPI SetupOpenInfFileW( PCWSTR name, PCWSTR class, DWORD style, UINT *error ) { struct inf_file *file = NULL; HANDLE handle; WCHAR *path, *p; UINT len; if (strchrW( name, '\\' ) || strchrW( name, '/' )) { if (!(len = GetFullPathNameW( name, 0, NULL, NULL ))) return (HINF)INVALID_HANDLE_VALUE; if (!(path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return (HINF)INVALID_HANDLE_VALUE; } GetFullPathNameW( name, len, path, NULL ); handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); } else /* try Windows directory */ { static const WCHAR Inf[] = {'\\','i','n','f','\\',0}; static const WCHAR System32[] = {'\\','s','y','s','t','e','m','3','2','\\',0}; len = GetWindowsDirectoryW( NULL, 0 ) + strlenW(name) + 12; if (!(path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return (HINF)INVALID_HANDLE_VALUE; } GetWindowsDirectoryW( path, len ); p = path + strlenW(path); strcpyW( p, Inf ); strcatW( p, name ); handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); if (handle == INVALID_HANDLE_VALUE) { strcpyW( p, System32 ); strcatW( p, name ); handle = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); } } if (handle != INVALID_HANDLE_VALUE) { file = parse_file( handle, class, error ); CloseHandle( handle ); } if (!file) { HeapFree( GetProcessHeap(), 0, path ); return (HINF)INVALID_HANDLE_VALUE; } TRACE( "%s -> %p\n", debugstr_w(path), file ); file->src_root = path; if ((p = strrchrW( path, '\\' ))) p[1] = 0; /* remove file name */ SetLastError( 0 ); return (HINF)file; } /*********************************************************************** * SetupOpenAppendInfFileA (SETUPAPI.@) */ BOOL WINAPI SetupOpenAppendInfFileA( PCSTR name, HINF parent_hinf, UINT *error ) { HINF child_hinf; if (!name) return SetupOpenAppendInfFileW( NULL, parent_hinf, error ); child_hinf = SetupOpenInfFileA( name, NULL, INF_STYLE_WIN4, error ); if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE; append_inf_file( parent_hinf, child_hinf ); TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_a(name), child_hinf ); return TRUE; } /*********************************************************************** * SetupOpenAppendInfFileW (SETUPAPI.@) */ BOOL WINAPI SetupOpenAppendInfFileW( PCWSTR name, HINF parent_hinf, UINT *error ) { HINF child_hinf; if (!name) { INFCONTEXT context; WCHAR filename[MAX_PATH]; int idx = 1; if (!SetupFindFirstLineW( parent_hinf, Version, LayoutFile, &context )) return FALSE; while (SetupGetStringFieldW( &context, idx++, filename, sizeof(filename)/sizeof(WCHAR), NULL )) { child_hinf = SetupOpenInfFileW( filename, NULL, INF_STYLE_WIN4, error ); if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE; append_inf_file( parent_hinf, child_hinf ); TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_w(filename), child_hinf ); } return TRUE; } child_hinf = SetupOpenInfFileW( name, NULL, INF_STYLE_WIN4, error ); if (child_hinf == (HINF)INVALID_HANDLE_VALUE) return FALSE; append_inf_file( parent_hinf, child_hinf ); TRACE( "%p: appended %s (%p)\n", parent_hinf, debugstr_w(name), child_hinf ); return TRUE; } /*********************************************************************** * SetupCloseInfFile (SETUPAPI.@) */ void WINAPI SetupCloseInfFile( HINF hinf ) { struct inf_file *file = hinf; int i; for (i = 0; i < file->nb_sections; i++) HeapFree( GetProcessHeap(), 0, file->sections[i] ); HeapFree( GetProcessHeap(), 0, file->src_root ); HeapFree( GetProcessHeap(), 0, file->sections ); HeapFree( GetProcessHeap(), 0, file->fields ); HeapFree( GetProcessHeap(), 0, file->strings ); HeapFree( GetProcessHeap(), 0, file ); } /*********************************************************************** * SetupGetLineCountA (SETUPAPI.@) */ LONG WINAPI SetupGetLineCountA( HINF hinf, PCSTR name ) { UNICODE_STRING sectionW; LONG ret = -1; if (!RtlCreateUnicodeStringFromAsciiz( §ionW, name )) SetLastError( ERROR_NOT_ENOUGH_MEMORY ); else { ret = SetupGetLineCountW( hinf, sectionW.Buffer ); RtlFreeUnicodeString( §ionW ); } return ret; } /*********************************************************************** * SetupGetLineCountW (SETUPAPI.@) */ LONG WINAPI SetupGetLineCountW( HINF hinf, PCWSTR section ) { struct inf_file *file = hinf; int section_index; LONG ret = -1; for (file = hinf; file; file = file->next) { if ((section_index = find_section( file, section )) == -1) continue; if (ret == -1) ret = 0; ret += file->sections[section_index]->nb_lines; } TRACE( "(%p,%s) returning %ld\n", hinf, debugstr_w(section), ret ); SetLastError( (ret == -1) ? ERROR_SECTION_NOT_FOUND : 0 ); return ret; } /*********************************************************************** * SetupGetLineByIndexA (SETUPAPI.@) */ BOOL WINAPI SetupGetLineByIndexA( HINF hinf, PCSTR section, DWORD index, INFCONTEXT *context ) { UNICODE_STRING sectionW; BOOL ret = FALSE; if (!RtlCreateUnicodeStringFromAsciiz( §ionW, section )) SetLastError( ERROR_NOT_ENOUGH_MEMORY ); else { ret = SetupGetLineByIndexW( hinf, sectionW.Buffer, index, context ); RtlFreeUnicodeString( §ionW ); } return ret; } /*********************************************************************** * SetupGetLineByIndexW (SETUPAPI.@) */ BOOL WINAPI SetupGetLineByIndexW( HINF hinf, PCWSTR section, DWORD index, INFCONTEXT *context ) { struct inf_file *file = hinf; int section_index; SetLastError( ERROR_SECTION_NOT_FOUND ); for (file = hinf; file; file = file->next) { if ((section_index = find_section( file, section )) == -1) continue; SetLastError( ERROR_LINE_NOT_FOUND ); if (index < file->sections[section_index]->nb_lines) { context->Inf = hinf; context->CurrentInf = file; context->Section = section_index; context->Line = index; SetLastError( 0 ); TRACE( "(%p,%s): returning %d/%ld\n", hinf, debugstr_w(section), section_index, index ); return TRUE; } index -= file->sections[section_index]->nb_lines; } TRACE( "(%p,%s) not found\n", hinf, debugstr_w(section) ); return FALSE; } /*********************************************************************** * SetupFindFirstLineA (SETUPAPI.@) */ BOOL WINAPI SetupFindFirstLineA( HINF hinf, PCSTR section, PCSTR key, INFCONTEXT *context ) { UNICODE_STRING sectionW, keyW; BOOL ret = FALSE; if (!RtlCreateUnicodeStringFromAsciiz( §ionW, section )) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return FALSE; } if (!key) ret = SetupFindFirstLineW( hinf, sectionW.Buffer, NULL, context ); else { if (RtlCreateUnicodeStringFromAsciiz( &keyW, key )) { ret = SetupFindFirstLineW( hinf, sectionW.Buffer, keyW.Buffer, context ); RtlFreeUnicodeString( &keyW ); } else SetLastError( ERROR_NOT_ENOUGH_MEMORY ); } RtlFreeUnicodeString( §ionW ); return ret; } /*********************************************************************** * SetupFindFirstLineW (SETUPAPI.@) */ BOOL WINAPI SetupFindFirstLineW( HINF hinf, PCWSTR section, PCWSTR key, INFCONTEXT *context ) { struct inf_file *file; int section_index; SetLastError( ERROR_SECTION_NOT_FOUND ); for (file = hinf; file; file = file->next) { if ((section_index = find_section( file, section )) == -1) continue; if (key) { INFCONTEXT ctx; ctx.Inf = hinf; ctx.CurrentInf = file; ctx.Section = section_index; ctx.Line = -1; return SetupFindNextMatchLineW( &ctx, key, context ); } SetLastError( ERROR_LINE_NOT_FOUND ); /* found at least one section */ if (file->sections[section_index]->nb_lines) { context->Inf = hinf; context->CurrentInf = file; context->Section = section_index; context->Line = 0; SetLastError( 0 ); TRACE( "(%p,%s,%s): returning %d/0\n", hinf, debugstr_w(section), debugstr_w(key), section_index ); return TRUE; } } TRACE( "(%p,%s,%s): not found\n", hinf, debugstr_w(section), debugstr_w(key) ); return FALSE; } /*********************************************************************** * SetupFindNextLine (SETUPAPI.@) */ BOOL WINAPI SetupFindNextLine( PINFCONTEXT context_in, PINFCONTEXT context_out ) { struct inf_file *file = context_in->CurrentInf; struct section *section; if (context_in->Section >= file->nb_sections) goto error; section = file->sections[context_in->Section]; if (context_in->Line+1 < section->nb_lines) { if (context_out != context_in) *context_out = *context_in; context_out->Line++; SetLastError( 0 ); return TRUE; } /* now search the appended files */ for (file = file->next; file; file = file->next) { int section_index = find_section( file, section->name ); if (section_index == -1) continue; if (file->sections[section_index]->nb_lines) { context_out->Inf = context_in->Inf; context_out->CurrentInf = file; context_out->Section = section_index; context_out->Line = 0; SetLastError( 0 ); return TRUE; } } error: SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } /*********************************************************************** * SetupFindNextMatchLineA (SETUPAPI.@) */ BOOL WINAPI SetupFindNextMatchLineA( PINFCONTEXT context_in, PCSTR key, PINFCONTEXT context_out ) { UNICODE_STRING keyW; BOOL ret = FALSE; if (!key) return SetupFindNextLine( context_in, context_out ); if (!RtlCreateUnicodeStringFromAsciiz( &keyW, key )) SetLastError( ERROR_NOT_ENOUGH_MEMORY ); else { ret = SetupFindNextMatchLineW( context_in, keyW.Buffer, context_out ); RtlFreeUnicodeString( &keyW ); } return ret; } /*********************************************************************** * SetupFindNextMatchLineW (SETUPAPI.@) */ BOOL WINAPI SetupFindNextMatchLineW( PINFCONTEXT context_in, PCWSTR key, PINFCONTEXT context_out ) { struct inf_file *file = context_in->CurrentInf; struct section *section; struct line *line; unsigned int i; if (!key) return SetupFindNextLine( context_in, context_out ); if (context_in->Section >= file->nb_sections) goto error; section = file->sections[context_in->Section]; for (i = context_in->Line+1, line = §ion->lines[i]; i < section->nb_lines; i++, line++) { if (line->key_field == -1) continue; if (!strcmpiW( key, file->fields[line->key_field].text )) { if (context_out != context_in) *context_out = *context_in; context_out->Line = i; SetLastError( 0 ); TRACE( "(%p,%s,%s): returning %d\n", file, debugstr_w(section->name), debugstr_w(key), i ); return TRUE; } } /* now search the appended files */ for (file = file->next; file; file = file->next) { int section_index = find_section( file, section->name ); if (section_index == -1) continue; section = file->sections[section_index]; for (i = 0, line = section->lines; i < section->nb_lines; i++, line++) { if (line->key_field == -1) continue; if (!strcmpiW( key, file->fields[line->key_field].text )) { context_out->Inf = context_in->Inf; context_out->CurrentInf = file; context_out->Section = section_index; context_out->Line = i; SetLastError( 0 ); TRACE( "(%p,%s,%s): returning %d/%d\n", file, debugstr_w(section->name), debugstr_w(key), section_index, i ); return TRUE; } } } TRACE( "(%p,%s,%s): not found\n", context_in->CurrentInf, debugstr_w(section->name), debugstr_w(key) ); error: SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } /*********************************************************************** * SetupGetLineTextW (SETUPAPI.@) */ BOOL WINAPI SetupGetLineTextW( PINFCONTEXT context, HINF hinf, PCWSTR section_name, PCWSTR key_name, PWSTR buffer, DWORD size, PDWORD required ) { struct inf_file *file; struct line *line; struct field *field; int i; DWORD total = 0; if (!context) { INFCONTEXT new_context; if (!SetupFindFirstLineW( hinf, section_name, key_name, &new_context )) return FALSE; file = new_context.CurrentInf; line = get_line( file, new_context.Section, new_context.Line ); } else { file = context->CurrentInf; if (!(line = get_line( file, context->Section, context->Line ))) { SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } } for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++) total += PARSER_string_substW( file, field->text, NULL, 0 ) + 1; if (required) *required = total; if (buffer) { if (total > size) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++) { unsigned int len = PARSER_string_substW( file, field->text, buffer, size ); if (i+1 < line->nb_fields) buffer[len] = ','; buffer += len + 1; } } return TRUE; } /*********************************************************************** * SetupGetLineTextA (SETUPAPI.@) */ BOOL WINAPI SetupGetLineTextA( PINFCONTEXT context, HINF hinf, PCSTR section_name, PCSTR key_name, PSTR buffer, DWORD size, PDWORD required ) { struct inf_file *file; struct line *line; struct field *field; int i; DWORD total = 0; if (!context) { INFCONTEXT new_context; if (!SetupFindFirstLineA( hinf, section_name, key_name, &new_context )) return FALSE; file = new_context.CurrentInf; line = get_line( file, new_context.Section, new_context.Line ); } else { file = context->CurrentInf; if (!(line = get_line( file, context->Section, context->Line ))) { SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } } for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++) total += PARSER_string_substA( file, field->text, NULL, 0 ) + 1; if (required) *required = total; if (buffer) { if (total > size) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } for (i = 0, field = &file->fields[line->first_field]; i < line->nb_fields; i++, field++) { unsigned int len = PARSER_string_substA( file, field->text, buffer, size ); if (i+1 < line->nb_fields) buffer[len] = ','; buffer += len + 1; } } return TRUE; } /*********************************************************************** * SetupGetFieldCount (SETUPAPI.@) */ DWORD WINAPI SetupGetFieldCount( PINFCONTEXT context ) { struct inf_file *file = context->CurrentInf; struct line *line = get_line( file, context->Section, context->Line ); if (!line) return 0; return line->nb_fields; } /*********************************************************************** * SetupGetStringFieldA (SETUPAPI.@) */ BOOL WINAPI SetupGetStringFieldA( PINFCONTEXT context, DWORD index, PSTR buffer, DWORD size, PDWORD required ) { struct inf_file *file = context->CurrentInf; struct field *field = get_field( file, context->Section, context->Line, index ); unsigned int len; SetLastError(0); if (!field) return FALSE; len = PARSER_string_substA( file, field->text, NULL, 0 ); if (required) *required = len + 1; if (buffer) { if (size <= len) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } PARSER_string_substA( file, field->text, buffer, size ); TRACE( "context %p/%p/%d/%d index %ld returning %s\n", context->Inf, context->CurrentInf, context->Section, context->Line, index, debugstr_a(buffer) ); } return TRUE; } /*********************************************************************** * SetupGetStringFieldW (SETUPAPI.@) */ BOOL WINAPI SetupGetStringFieldW( PINFCONTEXT context, DWORD index, PWSTR buffer, DWORD size, PDWORD required ) { struct inf_file *file = context->CurrentInf; struct field *field = get_field( file, context->Section, context->Line, index ); unsigned int len; SetLastError(0); if (!field) return FALSE; len = PARSER_string_substW( file, field->text, NULL, 0 ); if (required) *required = len + 1; if (buffer) { if (size <= len) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } PARSER_string_substW( file, field->text, buffer, size ); TRACE( "context %p/%p/%d/%d index %ld returning %s\n", context->Inf, context->CurrentInf, context->Section, context->Line, index, debugstr_w(buffer) ); } return TRUE; } /*********************************************************************** * SetupGetIntField (SETUPAPI.@) */ BOOL WINAPI SetupGetIntField( PINFCONTEXT context, DWORD index, PINT result ) { char localbuff[20]; char *end, *buffer = localbuff; DWORD required; INT res; BOOL ret = FALSE; if (!SetupGetStringFieldA( context, index, localbuff, sizeof(localbuff), &required )) { if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) return FALSE; if (!(buffer = HeapAlloc( GetProcessHeap(), 0, required ))) return FALSE; if (!SetupGetStringFieldA( context, index, buffer, required, NULL )) goto done; } res = strtol( buffer, &end, 0 ); if (end != buffer && !*end) { *result = res; ret = TRUE; } else SetLastError( ERROR_INVALID_DATA ); done: if (buffer != localbuff) HeapFree( GetProcessHeap(), 0, buffer ); return ret; } /*********************************************************************** * SetupGetBinaryField (SETUPAPI.@) */ BOOL WINAPI SetupGetBinaryField( PINFCONTEXT context, DWORD index, BYTE *buffer, DWORD size, LPDWORD required ) { struct inf_file *file = context->CurrentInf; struct line *line = get_line( file, context->Section, context->Line ); struct field *field; int i; if (!line) { SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } if (!index || index >= line->nb_fields) { SetLastError( ERROR_INVALID_PARAMETER ); return FALSE; } index--; /* fields start at 0 */ if (required) *required = line->nb_fields - index; if (!buffer) return TRUE; if (size < line->nb_fields - index) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } field = &file->fields[line->first_field + index]; for (i = index; i < line->nb_fields; i++, field++) { const WCHAR *p; DWORD value = 0; for (p = field->text; *p && isxdigitW(*p); p++) { if ((value <<= 4) > 255) { SetLastError( ERROR_INVALID_DATA ); return FALSE; } if (*p <= '9') value |= (*p - '0'); else value |= (tolowerW(*p) - 'a' + 10); } buffer[i - index] = value; } if (TRACE_ON(setupapi)) { TRACE( "%p/%p/%d/%d index %ld returning", context->Inf, context->CurrentInf, context->Section, context->Line, index ); for (i = index; i < line->nb_fields; i++) TRACE( " %02x", buffer[i - index] ); TRACE( "\n" ); } return TRUE; } /*********************************************************************** * SetupGetMultiSzFieldA (SETUPAPI.@) */ BOOL WINAPI SetupGetMultiSzFieldA( PINFCONTEXT context, DWORD index, PSTR buffer, DWORD size, LPDWORD required ) { struct inf_file *file = context->CurrentInf; struct line *line = get_line( file, context->Section, context->Line ); struct field *field; unsigned int len; int i; DWORD total = 1; if (!line) { SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } if (!index || index >= line->nb_fields) { SetLastError( ERROR_INVALID_PARAMETER ); return FALSE; } index--; /* fields start at 0 */ field = &file->fields[line->first_field + index]; for (i = index; i < line->nb_fields; i++, field++) { if (!(len = PARSER_string_substA( file, field->text, NULL, 0 ))) break; total += len + 1; } if (required) *required = total; if (!buffer) return TRUE; if (total > size) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } field = &file->fields[line->first_field + index]; for (i = index; i < line->nb_fields; i++, field++) { if (!(len = PARSER_string_substA( file, field->text, buffer, size ))) break; buffer += len + 1; } *buffer = 0; /* add final null */ return TRUE; } /*********************************************************************** * SetupGetMultiSzFieldW (SETUPAPI.@) */ BOOL WINAPI SetupGetMultiSzFieldW( PINFCONTEXT context, DWORD index, PWSTR buffer, DWORD size, LPDWORD required ) { struct inf_file *file = context->CurrentInf; struct line *line = get_line( file, context->Section, context->Line ); struct field *field; unsigned int len; int i; DWORD total = 1; if (!line) { SetLastError( ERROR_LINE_NOT_FOUND ); return FALSE; } if (!index || index >= line->nb_fields) { SetLastError( ERROR_INVALID_PARAMETER ); return FALSE; } index--; /* fields start at 0 */ field = &file->fields[line->first_field + index]; for (i = index; i < line->nb_fields; i++, field++) { if (!(len = PARSER_string_substW( file, field->text, NULL, 0 ))) break; total += len + 1; } if (required) *required = total; if (!buffer) return TRUE; if (total > size) { SetLastError( ERROR_INSUFFICIENT_BUFFER ); return FALSE; } field = &file->fields[line->first_field + index]; for (i = index; i < line->nb_fields; i++, field++) { if (!(len = PARSER_string_substW( file, field->text, buffer, size ))) break; buffer += len + 1; } *buffer = 0; /* add final null */ return TRUE; }