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wine/programs/reg/import.c
Eric Pouech 1e5ffcbf2e reg: Enable compilation with long types. 
Signed-off-by: Eric Pouech <eric.pouech@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-04 11:20:33 +01:00

1055 lines
27 KiB
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/*
* Copyright 2017 Hugh McMaster
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <errno.h>
#include <stdio.h>
#include "reg.h"
#include <wine/debug.h>
WINE_DEFAULT_DEBUG_CHANNEL(reg);
static WCHAR *GetWideString(const char *strA)
{
if (strA)
{
WCHAR *strW;
int len = MultiByteToWideChar(CP_ACP, 0, strA, -1, NULL, 0);
strW = malloc(len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, strA, -1, strW, len);
return strW;
}
return NULL;
}
static WCHAR *GetWideStringN(const char *strA, int size, DWORD *len)
{
if (strA)
{
WCHAR *strW;
*len = MultiByteToWideChar(CP_ACP, 0, strA, size, NULL, 0);
strW = malloc(*len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, strA, size, strW, *len);
return strW;
}
*len = 0;
return NULL;
}
static WCHAR *(*get_line)(FILE *);
/* parser definitions */
enum parser_state
{
HEADER, /* parsing the registry file version header */
PARSE_WIN31_LINE, /* parsing a Windows 3.1 registry line */
LINE_START, /* at the beginning of a registry line */
KEY_NAME, /* parsing a key name */
DELETE_KEY, /* deleting a registry key */
DEFAULT_VALUE_NAME, /* parsing a default value name */
QUOTED_VALUE_NAME, /* parsing a double-quoted value name */
DATA_START, /* preparing for data parsing operations */
DELETE_VALUE, /* deleting a registry value */
DATA_TYPE, /* parsing the registry data type */
STRING_DATA, /* parsing REG_SZ data */
DWORD_DATA, /* parsing DWORD data */
HEX_DATA, /* parsing REG_BINARY, REG_NONE, REG_EXPAND_SZ or REG_MULTI_SZ data */
EOL_BACKSLASH, /* preparing to parse multiple lines of hex data */
HEX_MULTILINE, /* parsing multiple lines of hex data */
UNKNOWN_DATA, /* parsing an unhandled or invalid data type */
SET_VALUE, /* adding a value to the registry */
NB_PARSER_STATES
};
struct parser
{
FILE *file; /* pointer to a registry file */
WCHAR two_wchars[2]; /* first two characters from the encoding check */
BOOL is_unicode; /* parsing Unicode or ASCII data */
short int reg_version; /* registry file version */
REGSAM sam; /* 32-bit or 64-bit registry view (if set) */
HKEY hkey; /* current registry key */
WCHAR *key_name; /* current key name */
WCHAR *value_name; /* value name */
DWORD parse_type; /* generic data type for parsing */
DWORD data_type; /* data type */
void *data; /* value data */
DWORD data_size; /* size of the data (in bytes) */
BOOL backslash; /* TRUE if the current line contains a backslash */
enum parser_state state; /* current parser state */
};
typedef WCHAR *(*parser_state_func)(struct parser *parser, WCHAR *pos);
/* parser state machine functions */
static WCHAR *header_state(struct parser *parser, WCHAR *pos);
static WCHAR *parse_win31_line_state(struct parser *parser, WCHAR *pos);
static WCHAR *line_start_state(struct parser *parser, WCHAR *pos);
static WCHAR *key_name_state(struct parser *parser, WCHAR *pos);
static WCHAR *delete_key_state(struct parser *parser, WCHAR *pos);
static WCHAR *default_value_name_state(struct parser *parser, WCHAR *pos);
static WCHAR *quoted_value_name_state(struct parser *parser, WCHAR *pos);
static WCHAR *data_start_state(struct parser *parser, WCHAR *pos);
static WCHAR *delete_value_state(struct parser *parser, WCHAR *pos);
static WCHAR *data_type_state(struct parser *parser, WCHAR *pos);
static WCHAR *string_data_state(struct parser *parser, WCHAR *pos);
static WCHAR *dword_data_state(struct parser *parser, WCHAR *pos);
static WCHAR *hex_data_state(struct parser *parser, WCHAR *pos);
static WCHAR *eol_backslash_state(struct parser *parser, WCHAR *pos);
static WCHAR *hex_multiline_state(struct parser *parser, WCHAR *pos);
static WCHAR *unknown_data_state(struct parser *parser, WCHAR *pos);
static WCHAR *set_value_state(struct parser *parser, WCHAR *pos);
static const parser_state_func parser_funcs[NB_PARSER_STATES] =
{
header_state, /* HEADER */
parse_win31_line_state, /* PARSE_WIN31_LINE */
line_start_state, /* LINE_START */
key_name_state, /* KEY_NAME */
delete_key_state, /* DELETE_KEY */
default_value_name_state, /* DEFAULT_VALUE_NAME */
quoted_value_name_state, /* QUOTED_VALUE_NAME */
data_start_state, /* DATA_START */
delete_value_state, /* DELETE_VALUE */
data_type_state, /* DATA_TYPE */
string_data_state, /* STRING_DATA */
dword_data_state, /* DWORD_DATA */
hex_data_state, /* HEX_DATA */
eol_backslash_state, /* EOL_BACKSLASH */
hex_multiline_state, /* HEX_MULTILINE */
unknown_data_state, /* UNKNOWN_DATA */
set_value_state, /* SET_VALUE */
};
/* set the new parser state and return the previous one */
static inline enum parser_state set_state(struct parser *parser, enum parser_state state)
{
enum parser_state ret = parser->state;
parser->state = state;
return ret;
}
/******************************************************************************
* Converts a hex representation of a DWORD into a DWORD.
*/
static BOOL convert_hex_to_dword(WCHAR *str, DWORD *dw)
{
WCHAR *p, *end;
int count = 0;
while (*str == ' ' || *str == '\t') str++;
if (!*str) goto error;
p = str;
while (iswxdigit(*p))
{
count++;
p++;
}
if (count > 8) goto error;
end = p;
while (*p == ' ' || *p == '\t') p++;
if (*p && *p != ';') goto error;
*end = 0;
*dw = wcstoul(str, &end, 16);
return TRUE;
error:
return FALSE;
}
/******************************************************************************
* Converts comma-separated hex data into a binary string and modifies
* the input parameter to skip the concatenating backslash, if found.
*
* Returns TRUE or FALSE to indicate whether parsing was successful.
*/
static BOOL convert_hex_csv_to_hex(struct parser *parser, WCHAR **str)
{
size_t size;
BYTE *d;
WCHAR *s;
parser->backslash = FALSE;
/* The worst case is 1 digit + 1 comma per byte */
size = ((lstrlenW(*str) + 1) / 2) + parser->data_size;
parser->data = realloc(parser->data, size);
s = *str;
d = (BYTE *)parser->data + parser->data_size;
while (*s)
{
WCHAR *end;
unsigned long wc;
wc = wcstoul(s, &end, 16);
if (wc > 0xff) return FALSE;
if (s == end && wc == 0)
{
while (*end == ' ' || *end == '\t') end++;
if (*end == '\\')
{
parser->backslash = TRUE;
*str = end + 1;
return TRUE;
}
else if (*end == ';')
return TRUE;
return FALSE;
}
*d++ = wc;
parser->data_size++;
if (*end && *end != ',')
{
while (*end == ' ' || *end == '\t') end++;
if (*end && *end != ';') return FALSE;
return TRUE;
}
if (*end) end++;
s = end;
}
return TRUE;
}
/******************************************************************************
* Parses the data type of the registry value being imported and modifies
* the input parameter to skip the string representation of the data type.
*
* Returns TRUE or FALSE to indicate whether a data type was found.
*/
static BOOL parse_data_type(struct parser *parser, WCHAR **line)
{
struct data_type { const WCHAR *tag; int len; int type; int parse_type; };
static const struct data_type data_types[] = {
/* tag len type parse type */
{ L"\"", 1, REG_SZ, REG_SZ },
{ L"hex:", 4, REG_BINARY, REG_BINARY },
{ L"dword:", 6, REG_DWORD, REG_DWORD },
{ L"hex(", 4, -1, REG_BINARY }, /* REG_NONE, REG_EXPAND_SZ, REG_MULTI_SZ */
{ NULL, 0, 0, 0 }
};
const struct data_type *ptr;
for (ptr = data_types; ptr->tag; ptr++)
{
if (wcsncmp(ptr->tag, *line, ptr->len))
continue;
parser->parse_type = ptr->parse_type;
parser->data_type = ptr->parse_type;
*line += ptr->len;
if (ptr->type == -1)
{
WCHAR *end;
DWORD val;
if (!**line || towlower((*line)[1]) == 'x')
return FALSE;
/* "hex(xx):" is special */
val = wcstoul(*line, &end, 16);
if (*end != ')' || *(end + 1) != ':' || (val == ~0u && errno == ERANGE))
return FALSE;
parser->data_type = val;
*line = end + 2;
}
return TRUE;
}
return FALSE;
}
/******************************************************************************
* Replaces escape sequences with their character equivalents and
* null-terminates the string on the first non-escaped double quote.
*
* Assigns a pointer to the remaining unparsed data in the line.
* Returns TRUE or FALSE to indicate whether a closing double quote was found.
*/
static BOOL unescape_string(WCHAR *str, WCHAR **unparsed)
{
int str_idx = 0; /* current character under analysis */
int val_idx = 0; /* the last character of the unescaped string */
int len = lstrlenW(str);
BOOL ret;
for (str_idx = 0; str_idx < len; str_idx++, val_idx++)
{
if (str[str_idx] == '\\')
{
str_idx++;
switch (str[str_idx])
{
case 'n':
str[val_idx] = '\n';
break;
case 'r':
str[val_idx] = '\r';
break;
case '0':
return FALSE;
case '\\':
case '"':
str[val_idx] = str[str_idx];
break;
default:
if (!str[str_idx]) return FALSE;
output_message(STRING_ESCAPE_SEQUENCE, str[str_idx]);
str[val_idx] = str[str_idx];
break;
}
}
else if (str[str_idx] == '"')
break;
else
str[val_idx] = str[str_idx];
}
ret = (str[str_idx] == '"');
*unparsed = str + str_idx + 1;
str[val_idx] = '\0';
return ret;
}
static HKEY parse_key_name(WCHAR *key_name, WCHAR **key_path)
{
if (!key_name) return 0;
*key_path = wcschr(key_name, '\\');
if (*key_path) (*key_path)++;
return path_get_rootkey(key_name);
}
static void close_key(struct parser *parser)
{
if (parser->hkey)
{
free(parser->key_name);
parser->key_name = NULL;
RegCloseKey(parser->hkey);
parser->hkey = NULL;
}
}
static LONG open_key(struct parser *parser, WCHAR *path)
{
HKEY key_class;
WCHAR *key_path;
LONG res;
close_key(parser);
/* Get the registry class */
if (!path || !(key_class = parse_key_name(path, &key_path)))
return ERROR_INVALID_PARAMETER;
res = RegCreateKeyExW(key_class, key_path, 0, NULL, REG_OPTION_NON_VOLATILE,
KEY_ALL_ACCESS|parser->sam, NULL, &parser->hkey, NULL);
if (res == ERROR_SUCCESS)
{
parser->key_name = malloc((lstrlenW(path) + 1) * sizeof(WCHAR));
lstrcpyW(parser->key_name, path);
}
else
parser->hkey = NULL;
return res;
}
static void free_parser_data(struct parser *parser)
{
if (parser->parse_type == REG_DWORD || parser->parse_type == REG_BINARY)
free(parser->data);
parser->data = NULL;
parser->data_size = 0;
}
static void prepare_hex_string_data(struct parser *parser)
{
if (parser->data_type == REG_EXPAND_SZ || parser->data_type == REG_MULTI_SZ ||
parser->data_type == REG_SZ)
{
if (parser->is_unicode)
{
WCHAR *data = parser->data;
DWORD len = parser->data_size / sizeof(WCHAR);
if (data[len - 1] != 0)
{
data[len] = 0;
parser->data_size += sizeof(WCHAR);
}
}
else
{
BYTE *data = parser->data;
if (data[parser->data_size - 1] != 0)
{
data[parser->data_size] = 0;
parser->data_size++;
}
parser->data = GetWideStringN(parser->data, parser->data_size, &parser->data_size);
parser->data_size *= sizeof(WCHAR);
free(data);
}
}
}
enum reg_versions {
REG_VERSION_31,
REG_VERSION_40,
REG_VERSION_50,
REG_VERSION_FUZZY,
REG_VERSION_INVALID
};
static enum reg_versions parse_file_header(const WCHAR *s)
{
static const WCHAR *header_31 = L"REGEDIT";
while (*s == ' ' || *s == '\t') s++;
if (!lstrcmpW(s, header_31))
return REG_VERSION_31;
if (!lstrcmpW(s, L"REGEDIT4"))
return REG_VERSION_40;
if (!lstrcmpW(s, L"Windows Registry Editor Version 5.00"))
return REG_VERSION_50;
/* The Windows version accepts registry file headers beginning with "REGEDIT" and ending
* with other characters, as long as "REGEDIT" appears at the start of the line. For example,
* "REGEDIT 4", "REGEDIT9" and "REGEDIT4FOO" are all treated as valid file headers.
* In all such cases, however, the contents of the registry file are not imported.
*/
if (!wcsncmp(s, header_31, 7)) /* "REGEDIT" without NUL */
return REG_VERSION_FUZZY;
return REG_VERSION_INVALID;
}
/* handler for parser HEADER state */
static WCHAR *header_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line, *header;
if (!(line = get_line(parser->file)))
return NULL;
if (!parser->is_unicode)
{
header = malloc((lstrlenW(line) + 3) * sizeof(WCHAR));
header[0] = parser->two_wchars[0];
header[1] = parser->two_wchars[1];
lstrcpyW(header + 2, line);
parser->reg_version = parse_file_header(header);
free(header);
}
else parser->reg_version = parse_file_header(line);
switch (parser->reg_version)
{
case REG_VERSION_31:
set_state(parser, PARSE_WIN31_LINE);
break;
case REG_VERSION_40:
case REG_VERSION_50:
set_state(parser, LINE_START);
break;
default:
get_line(NULL); /* Reset static variables */
return NULL;
}
return line;
}
/* handler for parser PARSE_WIN31_LINE state */
static WCHAR *parse_win31_line_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line, *value;
unsigned int key_end = 0;
if (!(line = get_line(parser->file)))
return NULL;
if (wcsncmp(line, L"HKEY_CLASSES_ROOT", 17)) /* "HKEY_CLASSES_ROOT" without NUL */
return line;
/* get key name */
while (line[key_end] && !iswspace(line[key_end])) key_end++;
value = line + key_end;
while (*value == ' ' || *value == '\t') value++;
if (*value == '=') value++;
if (*value == ' ') value++; /* at most one space is skipped */
line[key_end] = 0;
if (open_key(parser, line) != ERROR_SUCCESS)
{
output_message(STRING_KEY_IMPORT_FAILED, line);
return line;
}
parser->value_name = NULL;
parser->data_type = REG_SZ;
parser->data = value;
parser->data_size = (lstrlenW(value) + 1) * sizeof(WCHAR);
set_state(parser, SET_VALUE);
return value;
}
/* handler for parser LINE_START state */
static WCHAR *line_start_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line, *p;
if (!(line = get_line(parser->file)))
return NULL;
for (p = line; *p; p++)
{
switch (*p)
{
case '[':
set_state(parser, KEY_NAME);
return p + 1;
case '@':
set_state(parser, DEFAULT_VALUE_NAME);
return p;
case '"':
set_state(parser, QUOTED_VALUE_NAME);
return p + 1;
case ' ':
case '\t':
break;
default:
return p;
}
}
return p;
}
/* handler for parser KEY_NAME state */
static WCHAR *key_name_state(struct parser *parser, WCHAR *pos)
{
WCHAR *p = pos, *key_end;
if (*p == ' ' || *p == '\t' || !(key_end = wcsrchr(p, ']')))
goto done;
*key_end = 0;
if (*p == '-')
{
set_state(parser, DELETE_KEY);
return p + 1;
}
else if (open_key(parser, p) != ERROR_SUCCESS)
output_message(STRING_KEY_IMPORT_FAILED, p);
done:
set_state(parser, LINE_START);
return p;
}
/* handler for parser DELETE_KEY state */
static WCHAR *delete_key_state(struct parser *parser, WCHAR *pos)
{
WCHAR *p = pos;
close_key(parser);
if (*p == 'H' || *p == 'h')
{
HKEY root;
WCHAR *path;
root = parse_key_name(p, &path);
if (root && path && *path)
RegDeleteTreeW(root, path);
}
set_state(parser, LINE_START);
return p;
}
/* handler for parser DEFAULT_VALUE_NAME state */
static WCHAR *default_value_name_state(struct parser *parser, WCHAR *pos)
{
free(parser->value_name);
parser->value_name = NULL;
set_state(parser, DATA_START);
return pos + 1;
}
/* handler for parser QUOTED_VALUE_NAME state */
static WCHAR *quoted_value_name_state(struct parser *parser, WCHAR *pos)
{
WCHAR *val_name = pos, *p;
free(parser->value_name);
parser->value_name = NULL;
if (!unescape_string(val_name, &p))
goto invalid;
/* copy the value name in case we need to parse multiple lines and the buffer is overwritten */
parser->value_name = malloc((lstrlenW(val_name) + 1) * sizeof(WCHAR));
lstrcpyW(parser->value_name, val_name);
set_state(parser, DATA_START);
return p;
invalid:
set_state(parser, LINE_START);
return val_name;
}
/* handler for parser DATA_START state */
static WCHAR *data_start_state(struct parser *parser, WCHAR *pos)
{
WCHAR *p = pos;
unsigned int len;
while (*p == ' ' || *p == '\t') p++;
if (*p != '=') goto invalid;
p++;
while (*p == ' ' || *p == '\t') p++;
/* trim trailing whitespace */
len = lstrlenW(p);
while (len > 0 && (p[len - 1] == ' ' || p[len - 1] == '\t')) len--;
p[len] = 0;
if (*p == '-')
set_state(parser, DELETE_VALUE);
else
set_state(parser, DATA_TYPE);
return p;
invalid:
set_state(parser, LINE_START);
return p;
}
/* handler for parser DELETE_VALUE state */
static WCHAR *delete_value_state(struct parser *parser, WCHAR *pos)
{
WCHAR *p = pos + 1;
while (*p == ' ' || *p == '\t') p++;
if (*p && *p != ';') goto done;
RegDeleteValueW(parser->hkey, parser->value_name);
done:
set_state(parser, LINE_START);
return p;
}
/* handler for parser DATA_TYPE state */
static WCHAR *data_type_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line = pos;
if (!parse_data_type(parser, &line))
{
set_state(parser, LINE_START);
return line;
}
switch (parser->parse_type)
{
case REG_SZ:
set_state(parser, STRING_DATA);
break;
case REG_DWORD:
set_state(parser, DWORD_DATA);
break;
case REG_BINARY: /* all hex data types, including undefined */
set_state(parser, HEX_DATA);
break;
default:
set_state(parser, UNKNOWN_DATA);
}
return line;
}
/* handler for parser STRING_DATA state */
static WCHAR *string_data_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line;
parser->data = pos;
if (!unescape_string(parser->data, &line))
goto invalid;
while (*line == ' ' || *line == '\t') line++;
if (*line && *line != ';') goto invalid;
parser->data_size = (lstrlenW(parser->data) + 1) * sizeof(WCHAR);
set_state(parser, SET_VALUE);
return line;
invalid:
free_parser_data(parser);
set_state(parser, LINE_START);
return line;
}
/* handler for parser DWORD_DATA state */
static WCHAR *dword_data_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line = pos;
parser->data = malloc(sizeof(DWORD));
if (!convert_hex_to_dword(line, parser->data))
goto invalid;
parser->data_size = sizeof(DWORD);
set_state(parser, SET_VALUE);
return line;
invalid:
free_parser_data(parser);
set_state(parser, LINE_START);
return line;
}
/* handler for parser HEX_DATA state */
static WCHAR *hex_data_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line = pos;
if (!*line)
goto set_value;
if (!convert_hex_csv_to_hex(parser, &line))
goto invalid;
if (parser->backslash)
{
set_state(parser, EOL_BACKSLASH);
return line;
}
prepare_hex_string_data(parser);
set_value:
set_state(parser, SET_VALUE);
return line;
invalid:
free_parser_data(parser);
set_state(parser, LINE_START);
return line;
}
/* handler for parser EOL_BACKSLASH state */
static WCHAR *eol_backslash_state(struct parser *parser, WCHAR *pos)
{
WCHAR *p = pos;
while (*p == ' ' || *p == '\t') p++;
if (*p && *p != ';') goto invalid;
set_state(parser, HEX_MULTILINE);
return pos;
invalid:
free_parser_data(parser);
set_state(parser, LINE_START);
return p;
}
/* handler for parser HEX_MULTILINE state */
static WCHAR *hex_multiline_state(struct parser *parser, WCHAR *pos)
{
WCHAR *line;
if (!(line = get_line(parser->file)))
{
prepare_hex_string_data(parser);
set_state(parser, SET_VALUE);
return pos;
}
while (*line == ' ' || *line == '\t') line++;
if (!*line || *line == ';') return line;
if (!iswxdigit(*line)) goto invalid;
set_state(parser, HEX_DATA);
return line;
invalid:
free_parser_data(parser);
set_state(parser, LINE_START);
return line;
}
/* handler for parser UNKNOWN_DATA state */
static WCHAR *unknown_data_state(struct parser *parser, WCHAR *pos)
{
FIXME("Unknown registry data type [0x%lx]\n", parser->data_type);
set_state(parser, LINE_START);
return pos;
}
/* handler for parser SET_VALUE state */
static WCHAR *set_value_state(struct parser *parser, WCHAR *pos)
{
RegSetValueExW(parser->hkey, parser->value_name, 0, parser->data_type,
parser->data, parser->data_size);
free_parser_data(parser);
if (parser->reg_version == REG_VERSION_31)
set_state(parser, PARSE_WIN31_LINE);
else
set_state(parser, LINE_START);
return pos;
}
#define REG_VAL_BUF_SIZE 4096
static WCHAR *get_lineA(FILE *fp)
{
static WCHAR *lineW;
static size_t size;
static char *buf, *next;
char *line;
free(lineW);
if (!fp) goto cleanup;
if (!size)
{
size = REG_VAL_BUF_SIZE;
buf = malloc(size);
*buf = 0;
next = buf;
}
line = next;
while (next)
{
char *p = strpbrk(line, "\r\n");
if (!p)
{
size_t len, count;
len = strlen(next);
memmove(buf, next, len + 1);
if (size - len < 3)
{
size *= 2;
buf = realloc(buf, size);
}
if (!(count = fread(buf + len, 1, size - len - 1, fp)))
{
next = NULL;
lineW = GetWideString(buf);
return lineW;
}
buf[len + count] = 0;
next = buf;
line = buf;
continue;
}
next = p + 1;
if (*p == '\r' && *(p + 1) == '\n') next++;
*p = 0;
lineW = GetWideString(line);
return lineW;
}
cleanup:
lineW = NULL;
free(buf);
size = 0;
return NULL;
}
static WCHAR *get_lineW(FILE *fp)
{
static size_t size;
static WCHAR *buf, *next;
WCHAR *line;
if (!fp) goto cleanup;
if (!size)
{
size = REG_VAL_BUF_SIZE;
buf = malloc(size * sizeof(WCHAR));
*buf = 0;
next = buf;
}
line = next;
while (next)
{
WCHAR *p = wcspbrk(line, L"\r\n");
if (!p)
{
size_t len, count;
len = lstrlenW(next);
memmove(buf, next, (len + 1) * sizeof(WCHAR));
if (size - len < 3)
{
size *= 2;
buf = realloc(buf, size * sizeof(WCHAR));
}
if (!(count = fread(buf + len, sizeof(WCHAR), size - len - 1, fp)))
{
next = NULL;
return buf;
}
buf[len + count] = 0;
next = buf;
line = buf;
continue;
}
next = p + 1;
if (*p == '\r' && *(p + 1) == '\n') next++;
*p = 0;
return line;
}
cleanup:
free(buf);
size = 0;
return NULL;
}
int reg_import(int argc, WCHAR *argvW[])
{
WCHAR *filename, *pos;
FILE *fp;
BYTE s[2];
struct parser parser;
if (argc > 4) goto invalid;
parser.sam = 0;
if (argc == 4)
{
WCHAR *str = argvW[3];
if (*str != '/' && *str != '-')
goto invalid;
str++;
if (!lstrcmpiW(str, L"reg:32"))
parser.sam = KEY_WOW64_32KEY;
else if (!lstrcmpiW(str, L"reg:64"))
parser.sam = KEY_WOW64_64KEY;
else
goto invalid;
}
filename = argvW[2];
fp = _wfopen(filename, L"rb");
if (!fp)
{
output_message(STRING_FILE_NOT_FOUND, filename);
return 1;
}
if (fread(s, sizeof(WCHAR), 1, fp) != 1)
goto error;
parser.is_unicode = (s[0] == 0xff && s[1] == 0xfe);
get_line = parser.is_unicode ? get_lineW : get_lineA;
parser.file = fp;
parser.two_wchars[0] = s[0];
parser.two_wchars[1] = s[1];
parser.reg_version = -1;
parser.hkey = NULL;
parser.key_name = NULL;
parser.value_name = NULL;
parser.parse_type = 0;
parser.data_type = 0;
parser.data = NULL;
parser.data_size = 0;
parser.backslash = FALSE;
parser.state = HEADER;
pos = parser.two_wchars;
/* parser main loop */
while (pos)
pos = (parser_funcs[parser.state])(&parser, pos);
if (parser.reg_version == REG_VERSION_INVALID)
goto error;
free(parser.value_name);
close_key(&parser);
fclose(fp);
return 0;
error:
fclose(fp);
return 1;
invalid:
output_message(STRING_INVALID_SYNTAX);
output_message(STRING_FUNC_HELP, wcsupr(argvW[1]));
return 1;
}
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