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kernel32: Reimplement Get/WritePrivateProfileStructW functions using exported APIs. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-04-01 10:27:53 +02:00
parent 5a5db91edd
commit 30ad67dc14
1 changed files with 36 additions and 69 deletions
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105
dlls/kernel32/profile.c
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@ -1600,6 +1600,23 @@ DWORD WINAPI GetPrivateProfileSectionNamesA( LPSTR buffer, DWORD size,
return ret;
}
static int get_hex_byte( const WCHAR *p )
{
int val;
if (*p >= '0' && *p <= '9') val = *p - '0';
else if (*p >= 'A' && *p <= 'Z') val = *p - 'A' + 10;
else if (*p >= 'a' && *p <= 'z') val = *p - 'a' + 10;
else return -1;
val <<= 4;
p++;
if (*p >= '0' && *p <= '9') val += *p - '0';
else if (*p >= 'A' && *p <= 'Z') val += *p - 'A' + 10;
else if (*p >= 'a' && *p <= 'z') val += *p - 'a' + 10;
else return -1;
return val;
}
/***********************************************************************
* GetPrivateProfileStructW (KERNEL32.@)
*
@ -1608,70 +1625,29 @@ DWORD WINAPI GetPrivateProfileSectionNamesA( LPSTR buffer, DWORD size,
BOOL WINAPI GetPrivateProfileStructW (LPCWSTR section, LPCWSTR key,
LPVOID buf, UINT len, LPCWSTR filename)
{
BOOL ret = FALSE;
BOOL ret = FALSE;
LPBYTE data = buf;
BYTE chksum = 0;
int val;
WCHAR *p, *buffer;
RtlEnterCriticalSection( &PROFILE_CritSect );
if (!(buffer = HeapAlloc( GetProcessHeap(), 0, (2 * len + 3) * sizeof(WCHAR) ))) return FALSE;
if (PROFILE_Open( filename, FALSE )) {
PROFILEKEY *k = PROFILE_Find ( &CurProfile->section, section, key, FALSE, FALSE);
if (k) {
TRACE("value (at %p): %s\n", k->value, debugstr_w(k->value));
if (((strlenW(k->value) - 2) / 2) == len)
{
LPWSTR end, p;
BOOL valid = TRUE;
WCHAR c;
DWORD chksum = 0;
if (GetPrivateProfileStringW( section, key, NULL, buffer, 2 * len + 3, filename ) != 2 * len + 2)
goto done;
end = k->value + strlenW(k->value); /* -> '\0' */
/* check for invalid chars in ASCII coded hex string */
for (p=k->value; p < end; p++)
{
if (!isxdigitW(*p))
{
WARN("invalid char '%x' in file %s->[%s]->%s !\n",
*p, debugstr_w(filename), debugstr_w(section), debugstr_w(key));
valid = FALSE;
break;
}
}
if (valid)
{
BOOL highnibble = TRUE;
BYTE b = 0, val;
LPBYTE binbuf = buf;
end -= 2; /* don't include checksum in output data */
/* translate ASCII hex format into binary data */
for (p=k->value; p < end; p++)
{
c = toupperW(*p);
val = (c > '9') ?
(c - 'A' + 10) : (c - '0');
if (highnibble)
b = val << 4;
else
{
b += val;
*binbuf++ = b; /* feed binary data into output */
chksum += b; /* calculate checksum */
}
highnibble ^= 1; /* toggle */
}
/* retrieve stored checksum value */
c = toupperW(*p++);
b = ( (c > '9') ? (c - 'A' + 10) : (c - '0') ) << 4;
c = toupperW(*p);
b += (c > '9') ? (c - 'A' + 10) : (c - '0');
if (b == (chksum & 0xff)) /* checksums match ? */
ret = TRUE;
}
}
}
for (p = buffer; len; p += 2, len--)
{
if ((val = get_hex_byte( p )) == -1) goto done;
*data++ = val;
chksum += val;
}
RtlLeaveCriticalSection( &PROFILE_CritSect );
/* retrieve stored checksum value */
if ((val = get_hex_byte( p )) == -1) goto done;
ret = ((BYTE)val == chksum);
done:
HeapFree( GetProcessHeap(), 0, buffer );
return ret;
}
@ -1730,17 +1706,8 @@ BOOL WINAPI WritePrivateProfileStructW (LPCWSTR section, LPCWSTR key,
*p++ = hex[sum & 0xf];
*p++ = '\0';
RtlEnterCriticalSection( &PROFILE_CritSect );
if (PROFILE_Open( filename, TRUE )) {
ret = PROFILE_SetString( section, key, outstring, FALSE);
if (ret) ret = PROFILE_FlushFile();
}
RtlLeaveCriticalSection( &PROFILE_CritSect );
ret = WritePrivateProfileStringW( section, key, outstring, filename );
HeapFree( GetProcessHeap(), 0, outstring );
return ret;
}