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Check for NULL in lstrcpy* (Windows uses real exception handlers).

This commit is contained in:
Marcus Meissner 1999-01-30 15:48:18 +00:00 committed by Alexandre Julliard
parent 01797f2f3a
commit a6af1f76a8
1 changed files with 32 additions and 4 deletions
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36
memory/string.c
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@ -247,7 +247,14 @@ SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
LPSTR WINAPI lstrcpy32A( LPSTR dst, LPCSTR src ) LPSTR WINAPI lstrcpy32A( LPSTR dst, LPCSTR src )
{ {
TRACE(string,"strcpy %s\n", debugstr_a (src)); TRACE(string,"strcpy %s\n", debugstr_a (src));
/* Windows does not check for NULL pointers here, so we don't either */ /* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
strcpy( dst, src ); strcpy( dst, src );
return dst; return dst;
} }
@ -260,7 +267,14 @@ LPWSTR WINAPI lstrcpy32W( LPWSTR dst, LPCWSTR src )
{ {
register LPWSTR p = dst; register LPWSTR p = dst;
TRACE(string,"strcpy L%s\n", debugstr_w (src)); TRACE(string,"strcpy L%s\n", debugstr_w (src));
/* Windows does not check for NULL pointers here, so we don't either */ /* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while ((*p++ = *src++)); while ((*p++ = *src++));
return dst; return dst;
} }
@ -286,7 +300,14 @@ LPSTR WINAPI lstrcpyn32A( LPSTR dst, LPCSTR src, INT32 n )
LPSTR p = dst; LPSTR p = dst;
TRACE(string,"strcpyn %s for %d chars\n", TRACE(string,"strcpyn %s for %d chars\n",
debugstr_an (src,n), n); debugstr_an (src,n), n);
/* Windows does not check for NULL pointers here, so we don't either */ /* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while ((n-- > 1) && *src) *p++ = *src++; while ((n-- > 1) && *src) *p++ = *src++;
if (n >= 0) *p = 0; if (n >= 0) *p = 0;
return dst; return dst;
@ -303,7 +324,14 @@ LPWSTR WINAPI lstrcpyn32W( LPWSTR dst, LPCWSTR src, INT32 n )
LPWSTR p = dst; LPWSTR p = dst;
TRACE(string,"strcpyn L%s for %d chars\n", TRACE(string,"strcpyn L%s for %d chars\n",
debugstr_wn (src,n), n); debugstr_wn (src,n), n);
/* Windows does not check for NULL pointers here, so we don't either */ /* In real windows the whole function is protected by an exception handler
* that returns ERROR_INVALID_PARAMETER on faulty parameters
* We currently just check for NULL.
*/
if (!dst || !src) {
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
while ((n-- > 1) && *src) *p++ = *src++; while ((n-- > 1) && *src) *p++ = *src++;
if (n >= 0) *p = 0; if (n >= 0) *p = 0;
return dst; return dst;