static VALUE
string_to_c_strict(VALUE self)
{
char *s;
VALUE num;
rb_must_asciicompat(self);
s = RSTRING_PTR(self);
if (!s || memchr(s, '\0', RSTRING_LEN(self)))
rb_raise(rb_eArgError, "string contains null byte");
if (s && s[RSTRING_LEN(self)]) {
rb_str_modify(self);
s = RSTRING_PTR(self);
s[RSTRING_LEN(self)] = '\0';
}
if (!s)
s = (char *)"";
if (!parse_comp(s, 1, &num)) {
rb_raise(rb_eArgError, "invalid value for convert(): %+"PRIsVALUE,
self);
}
return num;
}
VALUE
rb_str_vcatf(VALUE str, const char *fmt, va_list ap)
{
rb_printf_buffer_extra buffer;
#define f buffer.base
VALUE klass;
StringValue(str);
rb_str_modify(str);
f._flags = __SWR | __SSTR;
f._bf._size = 0;
f._w = rb_str_capacity(str);
f._bf._base = (unsigned char *)str;
f._p = (unsigned char *)RSTRING_END(str);
klass = RBASIC(str)->klass;
RBASIC_CLEAR_CLASS(str);
f.vwrite = ruby__sfvwrite;
f.vextra = ruby__sfvextra;
buffer.value = 0;
BSD_vfprintf(&f, fmt, ap);
RBASIC_SET_CLASS_RAW(str, klass);
rb_str_resize(str, (char *)f._p - RSTRING_PTR(str));
#undef f
return str;
}
static VALUE
bug_str_qsort_bang(int argc, VALUE *argv, VALUE str)
{
VALUE beg, len, size;
long l, b = 0, n, s = 1;
struct sort_data d;
rb_scan_args(argc, argv, "03", &beg, &len, &size);
l = RSTRING_LEN(str);
if (!NIL_P(beg) && (b = NUM2INT(beg)) < 0 && (b += l) < 0) {
rb_raise(rb_eArgError, "out of bounds");
}
if (!NIL_P(size) && (s = NUM2INT(size)) < 0) {
rb_raise(rb_eArgError, "negative size");
}
if (NIL_P(len) ||
(((n = NUM2INT(len)) < 0) ?
(rb_raise(rb_eArgError, "negative length"), 0) :
(b + n * s > l))) {
n = (l - b) / s;
}
rb_str_modify(str);
d.enc = rb_enc_get(str);
d.elsize = s;
ruby_qsort(RSTRING_PTR(str) + b, n, s,
rb_block_given_p() ? cmp_1 : cmp_2, &d);
return str;
}
VALUE
rb_str_clear( VALUE str)
{
rb_str_modify( str);
rb_str_resize( str, 0);
return str;
}
/* USB::DevHandle#usb_control_msg(requesttype, request, value, index, bytes, timeout) */
static VALUE
rusb_control_msg(
VALUE v,
VALUE vrequesttype,
VALUE vrequest,
VALUE vvalue,
VALUE vindex,
VALUE vbytes,
VALUE vtimeout)
{
usb_dev_handle *p = get_usb_devhandle(v);
int requesttype = NUM2INT(vrequesttype);
int request = NUM2INT(vrequest);
int value = NUM2INT(vvalue);
int index = NUM2INT(vindex);
int timeout = NUM2INT(vtimeout);
char *bytes;
int size;
int ret;
StringValue(vbytes);
rb_str_modify(vbytes);
bytes = RSTRING_PTR(vbytes);
size = RSTRING_LEN(vbytes);
ret = usb_control_msg(p, requesttype, request, value, index, bytes, size, timeout);
check_usb_error("usb_control_msg", ret);
return INT2NUM(ret);
}
static VALUE
rb_utf_chomp_default(VALUE str)
{
rb_str_modify(str);
const char *end = RSTRING(str)->ptr + RSTRING(str)->len;
char *last = utf_find_prev(RSTRING(str)->ptr, end);
if (last == NULL)
return Qnil;
if (_utf_char_validated(last, end) == '\n') {
char *last_but_one = utf_find_prev(RSTRING(str)->ptr, last);
if (last_but_one != NULL && utf_char(last_but_one) == '\r')
last = last_but_one;
} else if (!unichar_isnewline(utf_char(last))) {
return Qnil;
}
RSTRING(str)->len -= (RSTRING(str)->ptr + RSTRING(str)->len) - last;
*last = '\0';
return str;
}
static int read_check(struct io_args *a, long n, const char *msg, int io_wait)
{
if (n == -1) {
if (errno == EINTR) {
a->fd = my_fileno(a->io);
return -1;
}
rb_str_set_len(a->buf, 0);
if (errno == EAGAIN) {
if (io_wait) {
(void)kgio_call_wait_readable(a->io);
/* buf may be modified in other thread/fiber */
rb_str_modify(a->buf);
rb_str_resize(a->buf, a->len);
a->ptr = RSTRING_PTR(a->buf);
return -1;
} else {
a->buf = sym_wait_readable;
return 0;
}
}
rd_sys_fail(msg);
}
rb_str_set_len(a->buf, n);
if (n == 0)
a->buf = Qnil;
return 0;
}
VALUE
rb_str_cut_bang( VALUE str, VALUE len)
{
int l;
#ifdef HAVE_HEADER_RUBY_H
#else
int n;
#endif
rb_str_modify( str);
l = NUM2INT( len);
if (l < 0)
l = 0;
#ifdef HAVE_HEADER_RUBY_H
if (l < RSTRING_LEN( str)) {
RSTRING_LEN( str) = l;
return str;
}
#else
n = rb_str_strlen( str);
if (l < n) {
rb_str_update( str, l, n - l, rb_str_new( NULL, 0));
return str;
}
#endif
return Qnil;
}
/*
* call-seq:
* ssl.sysread(length) => string
* ssl.sysread(length, buffer) => buffer
*
* === Parameters
* * +length+ is a positive integer.
* * +buffer+ is a string used to store the result.
*/
static VALUE
ossl_ssl_read(int argc, VALUE *argv, VALUE self)
{
SSL *ssl;
int ilen, nread = 0;
VALUE len, str;
rb_scan_args(argc, argv, "11", &len, &str);
ilen = NUM2INT(len);
if(NIL_P(str)) {
str = rb_str_new(0, ilen);
} else {
StringValue(str);
rb_str_modify(str);
rb_str_resize(str, ilen);
}
if(ilen == 0) return str;
Data_Get_Struct(self, SSL, ssl);
int fd = rb_io_fd(ossl_ssl_get_io(self));
if (ssl) {
if(SSL_pending(ssl) <= 0)
rb_thread_wait_fd(fd);
for (;;) {
nread = SSL_read(ssl, RSTRING_PTR(str), RSTRING_LEN(str));
switch(ssl_get_error(ssl, nread)) {
case SSL_ERROR_NONE:
goto end;
case SSL_ERROR_ZERO_RETURN:
rb_eof_error();
case SSL_ERROR_WANT_WRITE:
rb_io_wait_writable(fd);
continue;
case SSL_ERROR_WANT_READ:
rb_io_wait_readable(fd);
continue;
case SSL_ERROR_SYSCALL:
if(ERR_peek_error() == 0 && nread == 0) rb_eof_error();
rb_sys_fail(0);
default:
ossl_raise(eSSLError, "SSL_read:");
}
}
}
else {
ID id_sysread = rb_intern("sysread");
rb_warning("SSL session is not started yet.");
return rb_funcall(ossl_ssl_get_io(self), id_sysread, 2, len, str);
}
end:
rb_str_set_len(str, nread);
OBJ_TAINT(str);
return str;
}
static VALUE
bug_str_cstr_unterm(VALUE str, VALUE c)
{
long len;
rb_str_modify(str);
len = RSTRING_LEN(str);
RSTRING_PTR(str)[len] = NUM2CHR(c);
return str;
}
static VALUE
pg_tmir_copy_get( t_typemap *p_typemap, VALUE field_str, int fieldno, int format, int enc_idx )
{
t_tmir *this = (t_tmir *) p_typemap;
rb_encoding *p_encoding = rb_enc_from_index(enc_idx);
VALUE enc = rb_enc_from_encoding(p_encoding);
/* field_str is reused in-place by pg_text_dec_copy_row(), so we need to make
* a copy of the string buffer for use in ruby space. */
VALUE field_str_copy = rb_str_dup(field_str);
rb_str_modify(field_str_copy);
return rb_funcall( this->self, s_id_typecast_copy_get, 4, field_str_copy, INT2NUM(fieldno), INT2NUM(format), enc );
}
VALUE
rb_str_eat( int argc, VALUE *argv, VALUE str)
{
VALUE val;
int n;
int l;
int r;
#ifdef HAVE_HEADER_RUBY_H
n = l = RSTRING_LEN( str);
#else
n = l = rb_str_strlen( str);
#endif
if (rb_scan_args( argc, argv, "01", &val) == 1) {
if (!NIL_P( val)) {
int v = NUM2INT( val);
if (v >= 0) {
if (n >= v) n = v;
} else {
n = -n;
if (n <= v) n = v;
}
}
}
rb_str_modify( str);
#ifdef HAVE_HEADER_RUBY_H
if (n > 0) {
r = l - n;
val = rb_str_new5( str, RSTRING_PTR( str), n);
memmove( RSTRING_PTR( str), RSTRING_PTR( str) + n, r);
} else {
r = l + n;
val = rb_str_new5( str, RSTRING_PTR( str) + r, -n);
}
RSTRING_LEN( str) = r;
OBJ_INFECT( val, str);
#else
if (n > 0) {
r = 0;
} else if (n < 0) {
r = l + n;
n = -n;
} else
return Qnil;
val = rb_str_substr( str, r, n);
if (!NIL_P(val))
rb_str_update( str, r, n, rb_str_new( NULL, 0));
#endif
return val;
}
VALUE string_xor( int argc, VALUE *argv, VALUE self ) {
const char *src = 0;
const char *src2 = 0;
char *dest = 0 ;
size_t length = 0;
size_t l;
if ( (argc < 1) || (argc > 2) ) {
rb_raise( rb_eArgError, "wrong # of arguments(%d for 1 or 2)", argc );
return Qnil;
}
rb_str_modify(self);
dest = RSTRING_PTR(self);
length = RSTRING_LEN(self);
if ( TYPE(argv[0]) == T_STRING ) {
l = RSTRING_LEN(argv[0]);
src = RSTRING_PTR(argv[0]);
if ( l < length )
length = l;
} else {
rb_raise( rb_eTypeError, "in method '" "xor" "', argument " "1"" of type '" "String""'" );
return Qnil;
}
if ( argc == 1 ) {
for ( ; length--; ++dest, ++src )
*dest ^= *src;
} else {
if ( TYPE(argv[1]) == T_STRING ) {
l = RSTRING_LEN(argv[1]);
src2 = RSTRING_PTR(argv[1]);
if ( l < length )
length = l;
} else {
rb_raise( rb_eTypeError, "in method '" "xor" "', argument " "2"" of type '" "String""'" );
return Qnil;
}
for ( ; length--; ++dest, ++src, ++src2 )
*dest ^= *src ^ *src2;
}
return self;
}
static void prepare_read(struct io_args *a, int argc, VALUE *argv, VALUE io)
{
VALUE length;
a->io = io;
a->fd = my_fileno(io);
rb_scan_args(argc, argv, "11", &length, &a->buf);
a->len = NUM2LONG(length);
if (NIL_P(a->buf)) {
a->buf = rb_str_new(NULL, a->len);
} else {
StringValue(a->buf);
rb_str_modify(a->buf);
rb_str_resize(a->buf, a->len);
}
a->ptr = RSTRING_PTR(a->buf);
}
/**
* Set four bytes for int32 in a binary string and return it.
*
* @example Set int32 in a BSON string.
* rb_string_set_int32(self, pos, int32)
*
* @param [ String ] self The Ruby binary string.
* @param [ Fixnum ] The position to set.
* @param [ Fixnum ] The int32 value.
*
* @return [ String ] The binary string.
*
* @since 2.0.0
*/
static VALUE rb_string_set_int32(VALUE str, VALUE pos, VALUE an_int32)
{
const int32_t offset = NUM2INT(pos);
const int32_t v = NUM2INT(an_int32);
const char bytes[4] = {
v & 255,
(v >> 8) & 255,
(v >> 16) & 255,
(v >> 24) & 255
};
rb_str_modify(str);
if (offset < 0 || offset + 4 > RSTRING_LEN(str)) {
rb_raise(rb_eArgError, "invalid position");
}
memcpy(RSTRING_PTR(str) + offset, bytes, 4);
return str;
}
VALUE
rb_utf_chomp_bang(int argc, VALUE *argv, UNUSED(VALUE self))
{
VALUE str, rs;
rb_scan_args(argc, argv, "11", &str, &rs);
if (RSTRING(str)->len == 0)
return Qnil;
if (argc == 1) {
rs = rb_rs;
if (rs == rb_default_rs)
rb_utf_chomp_default(str);
}
if (NIL_P(rs))
return Qnil;
StringValue(rs);
long rs_len = RSTRING(rs)->len;
if (rs_len == 0)
return rb_utf_chomp_newlines(str);
long len = RSTRING(str)->len;
if (rs_len > len)
return Qnil;
char last_char = RSTRING(rs)->ptr[rs_len - 1];
if (rs_len == 1 && last_char == '\n')
rb_utf_chomp_default(str);
char *p = RSTRING(str)->ptr;
if (p[len - 1] != last_char ||
(rs_len > 1 &&
rb_memcmp(RSTRING(rs)->ptr, p + len - rs_len, rs_len) != 0))
return Qnil;
rb_str_modify(str);
RSTRING(str)->len -= rs_len;
RSTRING(str)->ptr[RSTRING(str)->len] = '\0';
return str;
}
/* USB::DevHandle#usb_get_string_simple(index, buf) */
static VALUE
rusb_get_string_simple(
VALUE v,
VALUE vindex,
VALUE vbuf)
{
usb_dev_handle *p = get_usb_devhandle(v);
int index = NUM2INT(vindex);
char *buf;
int buflen;
int ret;
StringValue(vbuf);
rb_str_modify(vbuf);
buf = RSTRING_PTR(vbuf);
buflen = RSTRING_LEN(vbuf);
ret = usb_get_string_simple(p, index, buf, buflen);
check_usb_error("usb_get_string_simple", ret);
return INT2NUM(ret);
}
/* USB::DevHandle#usb_get_driver_np(interface, name) */
static VALUE
rusb_get_driver_np(
VALUE v,
VALUE vinterface,
VALUE vname)
{
usb_dev_handle *p = get_usb_devhandle(v);
int interface = NUM2INT(vinterface);
char *name;
int namelen;
int ret;
StringValue(vname);
rb_str_modify(vname);
name = RSTRING_PTR(vname);
namelen = RSTRING_LEN(vname);
ret = usb_get_driver_np(p, interface, name, namelen);
check_usb_error("usb_get_driver_np", ret);
return Qnil;
}
static VALUE _receive(int rflags, int argc, VALUE *argv, VALUE self)
{
struct posix_mq *mq = get(self, 1);
struct rw_args x;
VALUE buffer, timeout;
struct timespec expire;
if (mq->attr.mq_msgsize < 0) {
if (mq_getattr(mq->des, &mq->attr) < 0)
rb_sys_fail("mq_getattr");
}
rb_scan_args(argc, argv, "02", &buffer, &timeout);
x.timeout = convert_timeout(&expire, timeout);
if (NIL_P(buffer)) {
buffer = rb_str_new(0, mq->attr.mq_msgsize);
} else {
StringValue(buffer);
rb_str_modify(buffer);
rb_str_resize(buffer, mq->attr.mq_msgsize);
}
OBJ_TAINT(buffer);
x.msg_ptr = RSTRING_PTR(buffer);
x.msg_len = (size_t)mq->attr.mq_msgsize;
x.des = mq->des;
retry:
WITHOUT_GVL(xrecv, &x, RUBY_UBF_IO, 0);
if (x.received < 0) {
if (errno == EINTR)
goto retry;
if (errno == EAGAIN && (rflags & PMQ_TRY))
return Qnil;
rb_sys_fail("mq_receive");
}
rb_str_set_len(buffer, x.received);
if (rflags & PMQ_WANTARRAY)
return rb_ary_new3(2, buffer, UINT2NUM(x.msg_prio));
return buffer;
}
/* USB::DevHandle#usb_interrupt_read(endpoint, bytes, timeout) */
static VALUE
rusb_interrupt_read(
VALUE v,
VALUE vep,
VALUE vbytes,
VALUE vtimeout)
{
usb_dev_handle *p = get_usb_devhandle(v);
int ep = NUM2INT(vep);
int timeout = NUM2INT(vtimeout);
char *bytes;
int size;
int ret;
StringValue(vbytes);
rb_str_modify(vbytes);
bytes = RSTRING_PTR(vbytes);
size = RSTRING_LEN(vbytes);
ret = usb_interrupt_read(p, ep, bytes, size, timeout);
check_usb_error("usb_interrupt_read", ret);
return INT2NUM(ret);
}
VALUE
rb_str_vcatf(VALUE str, const char *fmt, va_list ap)
{
rb_printf_buffer f;
VALUE klass;
StringValue(str);
rb_str_modify(str);
f._flags = __SWR | __SSTR;
f._bf._size = 0;
f._w = rb_str_capacity(str);
f._bf._base = (unsigned char *)str;
f._p = (unsigned char *)RSTRING_END(str);
klass = RBASIC(str)->klass;
RBASIC(str)->klass = 0;
f.vwrite = ruby__sfvwrite;
BSD_vfprintf(&f, fmt, ap);
RBASIC(str)->klass = klass;
rb_str_resize(str, (char *)f._p - RSTRING_PTR(str));
return str;
}
/* USB::DevHandle#usb_get_descriptor_by_endpoint(endpoint, type, index, buf) */
static VALUE
rusb_get_descriptor_by_endpoint(
VALUE v,
VALUE vep,
VALUE vtype,
VALUE vindex,
VALUE vbuf)
{
usb_dev_handle *p = get_usb_devhandle(v);
int ep = NUM2INT(vep);
int type = NUM2INT(vtype);
int index = NUM2INT(vindex);
char *buf;
int buflen;
int ret;
StringValue(vbuf);
rb_str_modify(vbuf);
buf = RSTRING_PTR(vbuf);
buflen = RSTRING_LEN(vbuf);
ret = usb_get_descriptor_by_endpoint(p, ep, type, index, buf, buflen);
check_usb_error("usb_get_descriptor_by_endpoint", ret);
return INT2NUM(ret);
}
/*
* call-seq:
* str.to_c -> complex
*
* Returns a complex which denotes the string form. The parser
* ignores leading whitespaces and trailing garbage. Any digit
* sequences can be separated by an underscore. Returns zero for null
* or garbage string.
*
* '9'.to_c #=> (9+0i)
* '2.5'.to_c #=> (2.5+0i)
* '2.5/1'.to_c #=> ((5/2)+0i)
* '-3/2'.to_c #=> ((-3/2)+0i)
* '-i'.to_c #=> (0-1i)
* '45i'.to_c #=> (0+45i)
* '3-4i'.to_c #=> (3-4i)
* '-4e2-4e-2i'.to_c #=> (-400.0-0.04i)
* '-0.0-0.0i'.to_c #=> (-0.0-0.0i)
* '1/2+3/4i'.to_c #=> ((1/2)+(3/4)*i)
* 'ruby'.to_c #=> (0+0i)
*
* See Kernel.Complex.
*/
static VALUE
string_to_c(VALUE self)
{
char *s;
VALUE num;
rb_must_asciicompat(self);
s = RSTRING_PTR(self);
if (s && s[RSTRING_LEN(self)]) {
rb_str_modify(self);
s = RSTRING_PTR(self);
s[RSTRING_LEN(self)] = '\0';
}
if (!s)
s = (char *)"";
(void)parse_comp(s, 0, &num);
return num;
}
static VALUE
rb_utf_chomp_newlines(VALUE str)
{
char *begin = RSTRING(str)->ptr;
char *end = begin + RSTRING(str)->len;
char *last = end;
while (last > begin) {
char *last_but_one = utf_find_prev(begin, last);
if (last == NULL || !unichar_isnewline(utf_char(last_but_one)))
break;
last = last_but_one;
}
if (last == end)
return Qnil;
rb_str_modify(str);
RSTRING(str)->len -= end - last;
*last = '\0';
return str;
}
static VALUE
ossl_ssl_read_internal(int argc, VALUE *argv, VALUE self, int nonblock)
{
SSL *ssl;
int ilen, nread = 0;
VALUE len, str;
rb_io_t *fptr;
rb_scan_args(argc, argv, "11", &len, &str);
ilen = NUM2INT(len);
if(NIL_P(str)) {
str = rb_bstr_new();
}
else{
StringValue(str);
rb_str_modify(str);
str = rb_str_bstr(str);
}
rb_bstr_resize(str, ilen);
if(ilen == 0) return str;
Data_Get_Struct(self, SSL, ssl);
GetOpenFile(ossl_ssl_get_io(self), fptr);
if (ssl) {
if(!nonblock && SSL_pending(ssl) <= 0)
rb_thread_wait_fd(FPTR_TO_FD(fptr));
for (;;){
nread = SSL_read(ssl, rb_bstr_bytes(str),
rb_bstr_length(str));
switch(ssl_get_error(ssl, nread)){
case SSL_ERROR_NONE:
goto end;
case SSL_ERROR_ZERO_RETURN:
rb_eof_error();
case SSL_ERROR_WANT_WRITE:
write_would_block(nonblock);
rb_io_wait_writable(FPTR_TO_FD(fptr));
continue;
case SSL_ERROR_WANT_READ:
read_would_block(nonblock);
rb_io_wait_readable(FPTR_TO_FD(fptr));
continue;
case SSL_ERROR_SYSCALL:
if(ERR_peek_error() == 0 && nread == 0) rb_eof_error();
rb_sys_fail(0);
default:
ossl_raise(eSSLError, "SSL_read:");
}
}
}
else {
ID meth = nonblock ? rb_intern("read_nonblock") : rb_intern("sysread");
rb_warning("SSL session is not started yet.");
return rb_funcall(ossl_ssl_get_io(self), meth, 2, len, str);
}
end:
rb_bstr_resize(str, nread);
OBJ_TAINT(str);
return str;
}
VALUE image_open(VALUE self, VALUE filename_location, VALUE disk_type_flag) {
char * filename; int dtype;
struct tsk4r_img_wrapper * ptr;
Data_Get_Struct(self, struct tsk4r_img_wrapper, ptr);
VALUE img_size;
VALUE img_sector_size;
VALUE description = Qnil; VALUE name = Qnil;
dtype = FIX2ULONG(disk_type_flag);
TSK_IMG_TYPE_ENUM * type_flag_num = get_img_flag(disk_type_flag);
if (rb_obj_is_kind_of(filename_location, rb_cString)) {
fprintf(stdout, "opening %s. (flag=%d)\n", StringValuePtr(filename_location), dtype);
rb_str_modify(filename_location);
filename=StringValuePtr(filename_location);
ptr->image = tsk_img_open_sing(filename, (TSK_IMG_TYPE_ENUM)type_flag_num, 0); // 0=default sector size
if (ptr->image == NULL) rb_warn("unable to open image %s.\n", StringValuePtr(filename_location));
}
else if (rb_obj_is_kind_of(filename_location, rb_cArray)) {
long i;
typedef TSK_TCHAR * split_list;
split_list images[255]; // to do: make array length reflect list's length
for (i=0; i < RARRAY_LEN(filename_location); i++) {
VALUE rstring = rb_ary_entry(filename_location, i);
images[i] = StringValuePtr(rstring);
}
int count = (int)RARRAY_LEN(filename_location);
ptr->image = tsk_img_open(count, (const TSK_TCHAR **)images, (TSK_IMG_TYPE_ENUM)type_flag_num, 0); // 0=default sector size
VALUE arr_to_s = rb_funcall(filename_location, rb_intern("to_s"), 0, NULL);
if (ptr->image == NULL) rb_warn("unable to open images %s.\n", StringValuePtr(arr_to_s));
}
else {
rb_raise(rb_eArgError, "Arg1 should be String or Array of strings.");
}
if (ptr->image == NULL) {
rb_funcall(self, rb_intern("taint"), 0, NULL);
return Qnil;
} else {
TSK_IMG_INFO *image = ptr->image;
img_size = LONG2NUM(image->size);
img_sector_size = INT2NUM((int)image->sector_size);
TSK_IMG_TYPE_ENUM typenum = image->itype;
description = image_type_to_desc(self, INT2NUM(typenum));
name = image_type_to_name(self, INT2NUM(typenum));
rb_iv_set(self, "@size", img_size);
rb_iv_set(self, "@sector_size", img_sector_size);
rb_iv_set(self, "@type", INT2NUM((int)typenum));
rb_iv_set(self, "@description", description);
rb_iv_set(self, "@name", name);
return self;
}
}
VALUE CRbWin32API::call(int argc, VALUE * argv, VALUE obj)
{
struct
{
u32 params[16];
} param;
VALUE obj_proc = rb_iv_get(obj, "__proc__");
VALUE obj_import = rb_iv_get(obj, "__import__");
VALUE obj_export = rb_iv_get(obj, "__export__");
FARPROC ApiFunction = (FARPROC)rb_num2ulong(obj_proc);
VALUE args;
int items = rb_scan_args(argc, argv, "0*", &args);
int nimport = RARRAY_LEN(obj_import);
if (items != nimport)
rb_raise(rb_eSinError, "wrong number of parameters: expected %d, got %d", nimport, items);
for (int i = 0; i < nimport; ++i)
{
u32 lParam = 0;
switch (FIX2INT(rb_ary_entry(obj_import, i)))
{
VALUE str;
case _T_NUMBER:
case _T_INTEGER:
default:
lParam = rb_num2ulong(rb_ary_entry(args, i));
break;
case _T_POINTER:
str = rb_ary_entry(args, i);
if (NIL_P(str))
{
lParam = 0;
}
else if (FIXNUM_P(str))
{
lParam = rb_num2ulong(str);
}
else
{
rb_string_value(&str);
rb_str_modify(str);
lParam = (u32)rb_string_value_ptr(&str);
}
break;
}
param.params[i] = lParam;
}
u32 retval;
__try
{
__asm
{
mov ebx, esp
sub esp, 40h
mov ecx, 10h
lea esi, [param]
mov edi, esp
rep movs dword ptr es:[edi], dword ptr [esi]
call dword ptr [ApiFunction]
mov esp, ebx
mov dword ptr [retval], eax
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
rb_raise(rb_eSinError, "Api Crashed...");
}
switch (FIX2INT(obj_export))
{
case _T_NUMBER:
case _T_INTEGER:
return rb_int2inum(retval);
case _T_POINTER:
return (retval ? rb_str_new2((char *)retval) : Qnil);
case _T_VOID:
default:
return INT2FIX(0);
}
}
VALUE
rb_file_expand_path_internal(VALUE fname, VALUE dname, int abs_mode, int long_name, VALUE result)
{
size_t size = 0, wpath_len = 0, wdir_len = 0, whome_len = 0;
size_t buffer_len = 0;
char *fullpath = NULL;
wchar_t *wfullpath = NULL, *wpath = NULL, *wpath_pos = NULL;
wchar_t *wdir = NULL, *wdir_pos = NULL;
wchar_t *whome = NULL, *buffer = NULL, *buffer_pos = NULL;
UINT path_cp, cp;
VALUE path = fname, dir = dname;
wchar_t wfullpath_buffer[PATH_BUFFER_SIZE];
wchar_t path_drive = L'\0', dir_drive = L'\0';
int ignore_dir = 0;
rb_encoding *path_encoding;
int tainted = 0;
/* tainted if path is tainted */
tainted = OBJ_TAINTED(path);
/* get path encoding */
if (NIL_P(dir)) {
path_encoding = rb_enc_get(path);
}
else {
path_encoding = rb_enc_check(path, dir);
}
cp = path_cp = code_page(path_encoding);
/* workaround invalid codepage */
if (path_cp == INVALID_CODE_PAGE) {
cp = CP_UTF8;
if (!NIL_P(path)) {
path = fix_string_encoding(path, path_encoding);
}
}
/* convert char * to wchar_t */
convert_mb_to_wchar(path, &wpath, &wpath_pos, &wpath_len, cp);
/* determine if we need the user's home directory */
/* expand '~' only if NOT rb_file_absolute_path() where `abs_mode` is 1 */
if (abs_mode == 0 && wpath_len > 0 && wpath_pos[0] == L'~' &&
(wpath_len == 1 || IS_DIR_SEPARATOR_P(wpath_pos[1]))) {
/* tainted if expanding '~' */
tainted = 1;
whome = home_dir();
if (whome == NULL) {
xfree(wpath);
rb_raise(rb_eArgError, "couldn't find HOME environment -- expanding `~'");
}
whome_len = wcslen(whome);
if (PathIsRelativeW(whome) && !(whome_len >= 2 && IS_DIR_UNC_P(whome))) {
xfree(wpath);
rb_raise(rb_eArgError, "non-absolute home");
}
/* use filesystem encoding if expanding home dir */
path_encoding = rb_filesystem_encoding();
cp = path_cp = system_code_page();
/* ignores dir since we are expading home */
ignore_dir = 1;
/* exclude ~ from the result */
wpath_pos++;
wpath_len--;
/* exclude separator if present */
if (wpath_len && IS_DIR_SEPARATOR_P(wpath_pos[0])) {
wpath_pos++;
wpath_len--;
}
}
else if (wpath_len >= 2 && wpath_pos[1] == L':') {
if (wpath_len >= 3 && IS_DIR_SEPARATOR_P(wpath_pos[2])) {
/* ignore dir since path contains a drive letter and a root slash */
ignore_dir = 1;
}
else {
/* determine if we ignore dir or not later */
path_drive = wpath_pos[0];
}
}
else if (abs_mode == 0 && wpath_len >= 2 && wpath_pos[0] == L'~') {
result = get_user_from_path(&wpath_pos, 1, cp, path_cp, path_encoding);
if (wpath)
xfree(wpath);
rb_raise(rb_eArgError, "can't find user %s", StringValuePtr(result));
}
/* convert dir */
if (!ignore_dir && !NIL_P(dir)) {
/* fix string encoding */
if (path_cp == INVALID_CODE_PAGE) {
dir = fix_string_encoding(dir, path_encoding);
}
/* convert char * to wchar_t */
convert_mb_to_wchar(dir, &wdir, &wdir_pos, &wdir_len, cp);
if (abs_mode == 0 && wdir_len > 0 && wdir_pos[0] == L'~' &&
(wdir_len == 1 || IS_DIR_SEPARATOR_P(wdir_pos[1]))) {
/* tainted if expanding '~' */
tainted = 1;
whome = home_dir();
if (whome == NULL) {
xfree(wpath);
xfree(wdir);
rb_raise(rb_eArgError, "couldn't find HOME environment -- expanding `~'");
}
whome_len = wcslen(whome);
if (PathIsRelativeW(whome) && !(whome_len >= 2 && IS_DIR_UNC_P(whome))) {
xfree(wpath);
xfree(wdir);
rb_raise(rb_eArgError, "non-absolute home");
}
/* exclude ~ from the result */
wdir_pos++;
wdir_len--;
/* exclude separator if present */
if (wdir_len && IS_DIR_SEPARATOR_P(wdir_pos[0])) {
wdir_pos++;
wdir_len--;
}
}
else if (wdir_len >= 2 && wdir[1] == L':') {
dir_drive = wdir[0];
if (wpath_len && IS_DIR_SEPARATOR_P(wpath_pos[0])) {
wdir_len = 2;
}
}
else if (wdir_len >= 2 && IS_DIR_UNC_P(wdir)) {
/* UNC path */
if (wpath_len && IS_DIR_SEPARATOR_P(wpath_pos[0])) {
/* cut the UNC path tail to '//host/share' */
size_t separators = 0;
size_t pos = 2;
while (pos < wdir_len && separators < 2) {
if (IS_DIR_SEPARATOR_P(wdir[pos])) {
separators++;
}
pos++;
}
if (separators == 2)
wdir_len = pos - 1;
}
}
else if (abs_mode == 0 && wdir_len >= 2 && wdir_pos[0] == L'~') {
result = get_user_from_path(&wdir_pos, 1, cp, path_cp, path_encoding);
if (wpath)
xfree(wpath);
if (wdir)
xfree(wdir);
rb_raise(rb_eArgError, "can't find user %s", StringValuePtr(result));
}
}
/* determine if we ignore dir or not */
if (!ignore_dir && path_drive && dir_drive) {
if (towupper(path_drive) == towupper(dir_drive)) {
/* exclude path drive letter to use dir */
wpath_pos += 2;
wpath_len -= 2;
}
else {
/* ignore dir since path drive is different from dir drive */
ignore_dir = 1;
wdir_len = 0;
}
}
if (!ignore_dir && wpath_len >= 2 && IS_DIR_UNC_P(wpath)) {
/* ignore dir since path has UNC root */
ignore_dir = 1;
wdir_len = 0;
}
else if (!ignore_dir && wpath_len >= 1 && IS_DIR_SEPARATOR_P(wpath[0]) &&
!dir_drive && !(wdir_len >= 2 && IS_DIR_UNC_P(wdir))) {
/* ignore dir since path has root slash and dir doesn't have drive or UNC root */
ignore_dir = 1;
wdir_len = 0;
}
buffer_len = wpath_len + 1 + wdir_len + 1 + whome_len + 1;
buffer = buffer_pos = (wchar_t *)xmalloc((buffer_len + 1) * sizeof(wchar_t));
/* add home */
if (whome_len) {
wcsncpy(buffer_pos, whome, whome_len);
buffer_pos += whome_len;
}
/* Add separator if required */
if (whome_len && wcsrchr(L"\\/:", buffer_pos[-1]) == NULL) {
buffer_pos[0] = L'\\';
buffer_pos++;
}
if (wdir_len) {
/* tainted if dir is used and dir is tainted */
if (!tainted && OBJ_TAINTED(dir))
tainted = 1;
wcsncpy(buffer_pos, wdir_pos, wdir_len);
buffer_pos += wdir_len;
}
/* add separator if required */
if (wdir_len && wcsrchr(L"\\/:", buffer_pos[-1]) == NULL) {
buffer_pos[0] = L'\\';
buffer_pos++;
}
/* now deal with path */
if (wpath_len) {
wcsncpy(buffer_pos, wpath_pos, wpath_len);
buffer_pos += wpath_len;
}
/* GetFullPathNameW requires at least "." to determine current directory */
if (wpath_len == 0) {
buffer_pos[0] = L'.';
buffer_pos++;
}
/* Ensure buffer is NULL terminated */
buffer_pos[0] = L'\0';
/* tainted if path is relative */
if (!tainted && PathIsRelativeW(buffer) && !(buffer_len >= 2 && IS_DIR_UNC_P(buffer)))
tainted = 1;
/* FIXME: Make this more robust */
/* Determine require buffer size */
size = GetFullPathNameW(buffer, PATH_BUFFER_SIZE, wfullpath_buffer, NULL);
if (size > PATH_BUFFER_SIZE) {
/* allocate more memory than alloted originally by PATH_BUFFER_SIZE */
wfullpath = (wchar_t *)xmalloc(size * sizeof(wchar_t));
size = GetFullPathNameW(buffer, size, wfullpath, NULL);
}
else {
wfullpath = wfullpath_buffer;
}
/* Remove any trailing slashes */
if (IS_DIR_SEPARATOR_P(wfullpath[size - 1]) &&
wfullpath[size - 2] != L':' &&
!(size == 2 && IS_DIR_UNC_P(wfullpath))) {
size -= 1;
wfullpath[size] = L'\0';
}
/* Remove any trailing dot */
if (wfullpath[size - 1] == L'.') {
size -= 1;
wfullpath[size] = L'\0';
}
/* removes trailing invalid ':$DATA' */
size = remove_invalid_alternative_data(wfullpath, size);
/* Replace the trailing path to long name */
if (long_name)
size = replace_to_long_name(&wfullpath, size, (wfullpath != wfullpath_buffer));
/* sanitize backslashes with forwardslashes */
replace_wchar(wfullpath, L'\\', L'/');
/* convert to char * */
size = WideCharToMultiByte(cp, 0, wfullpath, size, NULL, 0, NULL, NULL);
if (size > (size_t)RSTRING_LEN(result)) {
rb_str_modify(result);
rb_str_resize(result, size);
}
WideCharToMultiByte(cp, 0, wfullpath, size, RSTRING_PTR(result), size, NULL, NULL);
rb_str_set_len(result, size);
/* convert to VALUE and set the path encoding */
if (path_cp == INVALID_CODE_PAGE) {
VALUE tmp;
size_t len;
rb_enc_associate(result, rb_utf8_encoding());
ENC_CODERANGE_CLEAR(result);
tmp = rb_str_encode(result, rb_enc_from_encoding(path_encoding), 0, Qnil);
len = RSTRING_LEN(tmp);
rb_str_modify(result);
rb_str_resize(result, len);
memcpy(RSTRING_PTR(result), RSTRING_PTR(tmp), len);
rb_str_resize(tmp, 0);
}
rb_enc_associate(result, path_encoding);
ENC_CODERANGE_CLEAR(result);
/* makes the result object tainted if expanding tainted strings or returning modified path */
if (tainted)
OBJ_TAINT(result);
/* TODO: better cleanup */
if (buffer)
xfree(buffer);
if (wpath)
xfree(wpath);
if (wdir)
xfree(wdir);
if (whome)
xfree(whome);
if (wfullpath && wfullpath != wfullpath_buffer)
xfree(wfullpath);
if (fullpath)
xfree(fullpath);
return result;
}
/*
* call-seq:
* Win32::API#call(arg1, arg2, ...)
*
* Calls the function pointer with the given arguments (if any). Note that,
* while this method will catch some prototype mismatches (raising a TypeError
* in the process), it is not fulproof. It is ultimately your job to make
* sure the arguments match the +prototype+ specified in the constructor.
*
* For convenience, nil is converted to NULL, true is converted to TRUE (1)
* and false is converted to FALSE (0).
*/
static VALUE api_call(int argc, VALUE* argv, VALUE self){
VALUE v_proto, v_args, v_arg, v_return;
Win32API* ptr;
unsigned long return_value;
int i = 0;
int len;
struct{
unsigned long params[20];
} param;
Data_Get_Struct(self, Win32API, ptr);
rb_scan_args(argc, argv, "0*", &v_args);
v_proto = rb_iv_get(self, "@prototype");
// For void prototypes, allow either no args or an explicit nil
if(RARRAY_LEN(v_proto) != RARRAY_LEN(v_args)){
char* c = StringValuePtr(RARRAY_PTR(v_proto)[0]);
if(!strcmp(c, "V")){
rb_ary_push(v_args, Qnil);
}
else{
rb_raise(rb_eArgError,
"wrong number of parameters: expected %d, got %d",
RARRAY_LEN(v_proto), RARRAY_LEN(v_args)
);
}
}
len = RARRAY_LEN(v_proto);
for(i = 0; i < len; i++){
v_arg = RARRAY_PTR(v_args)[i];
// Convert nil to NULL. Otherwise convert as appropriate.
if(NIL_P(v_arg))
param.params[i] = (unsigned long)NULL;
else if(v_arg == Qtrue)
param.params[i] = TRUE;
else if(v_arg == Qfalse)
param.params[i] = FALSE;
else
switch(ptr->prototype[i]){
case _T_LONG:
param.params[i] = NUM2ULONG(v_arg);
break;
case _T_INTEGER:
param.params[i] = NUM2INT(v_arg);
break;
case _T_POINTER:
if(FIXNUM_P(v_arg)){
param.params[i] = NUM2ULONG(v_arg);
}
else{
StringValue(v_arg);
rb_str_modify(v_arg);
param.params[i] = (unsigned long)StringValuePtr(v_arg);
}
break;
case _T_CALLBACK:
ActiveCallback = v_arg;
v_proto = rb_iv_get(ActiveCallback, "@prototype");
param.params[i] = (LPARAM)NUM2ULONG(rb_iv_get(ActiveCallback, "@address"));;
break;
case _T_STRING:
param.params[i] = (unsigned long)RSTRING_PTR(v_arg);
break;
default:
param.params[i] = NUM2ULONG(v_arg);
}
}
/* Call the function, get the return value */
return_value = ptr->function(param);
/* Return the appropriate type based on the return type specified
* in the constructor.
*/
switch(ptr->return_type){
case _T_INTEGER:
v_return = INT2NUM(return_value);
break;
case _T_LONG:
v_return = ULONG2NUM(return_value);
break;
case _T_VOID:
v_return = Qnil;
break;
case _T_POINTER:
if(!return_value){
v_return = Qnil;
}
else{
VALUE v_efunc = rb_iv_get(self, "@effective_function_name");
char* efunc = RSTRING_PTR(v_efunc);
if(efunc[strlen(efunc)-1] == 'W'){
v_return = rb_str_new(
(TCHAR*)return_value,
wcslen((wchar_t*)return_value)*2
);
}
else{
v_return = rb_str_new2((TCHAR*)return_value);
}
}
break;
case _T_STRING:
{
VALUE v_efunc = rb_iv_get(self, "@effective_function_name");
char* efunc = RSTRING_PTR(v_efunc);
if(efunc[strlen(efunc)-1] == 'W'){
v_return = rb_str_new(
(TCHAR*)return_value,
wcslen((wchar_t*)return_value)*2
);
}
else{
v_return = rb_str_new2((TCHAR*)return_value);
}
}
break;
default:
v_return = INT2NUM(0);
}
return v_return;
}
DWORD CallbackFunction(CALLPARAM param, VALUE callback)
{
VALUE v_proto, v_return, v_proc, v_retval;
VALUE argv[20];
int i, argc;
char *a_proto;
char *a_return;
if(callback && !NIL_P(callback)){
v_proto = rb_iv_get(callback, "@prototype");
a_proto = RSTRING_PTR(v_proto);
v_return = rb_iv_get(callback, "@return_type");
a_return = RSTRING_PTR(v_return);
v_proc = rb_iv_get(callback, "@function");
argc = RSTRING_LEN(v_proto);
for(i=0; i < RSTRING_LEN(v_proto); i++){
argv[i] = Qnil;
switch(a_proto[i]){
case 'L':
argv[i] = ULONG2NUM(param.params[i]);
break;
case 'P':
if(param.params[i])
argv[i] = rb_str_new2((char *)param.params[i]);
break;
case 'I':
argv[i] = INT2NUM(param.params[i]);
break;
default:
rb_raise(cAPIProtoError, "Illegal prototype '%s'", a_proto[i]);
}
}
v_retval = rb_funcall2(v_proc, rb_intern("call"), argc, argv);
/* Handle true and false explicitly, as some CALLBACK functions
* require TRUE or FALSE to break out of loops, etc.
*/
if(v_retval == Qtrue)
return TRUE;
else if(v_retval == Qfalse)
return FALSE;
switch (*a_return) {
case 'I':
return NUM2INT(v_retval);
break;
case 'L':
return NUM2ULONG(v_retval);
break;
case 'S':
return (unsigned long)RSTRING_PTR(v_retval);
break;
case 'P':
if(NIL_P(v_retval)){
return 0;
}
else if(FIXNUM_P(v_retval)){
return NUM2ULONG(v_retval);
}
else{
StringValue(v_retval);
rb_str_modify(v_retval);
return (unsigned long)StringValuePtr(v_retval);
}
break;
}
}
return 0;
}
