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-rw-r--r--erts/emulator/beam/erl_bif_port.c2
-rw-r--r--erts/emulator/beam/erl_unicode.c58
-rw-r--r--erts/emulator/beam/global.h2
-rw-r--r--erts/preloaded/src/erts.app.src2
-rw-r--r--lib/compiler/src/beam_validator.erl6
-rw-r--r--lib/compiler/test/bs_match_SUITE.erl38
-rw-r--r--lib/kernel/doc/src/file.xml38
-rw-r--r--lib/kernel/src/kernel.app.src2
-rw-r--r--lib/kernel/test/file_name_SUITE.erl2
-rw-r--r--lib/stdlib/doc/src/filelib.xml24
-rw-r--r--lib/stdlib/doc/src/filename.xml78
-rw-r--r--lib/stdlib/doc/src/unicode_usage.xml4
-rw-r--r--lib/stdlib/src/filename.erl70
-rw-r--r--lib/stdlib/src/stdlib.app.src2
-rw-r--r--lib/stdlib/test/filename_SUITE.erl57
15 files changed, 362 insertions, 23 deletions
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index ff03151619..1121a450cd 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -1084,7 +1084,7 @@ static byte* convert_environment(Process* p, Eterm env)
goto done;
}
- if ((size = erts_native_filename_need(all,encoding)) < 0) {
+ if ((size = erts_native_filename_need(all, encoding, 1)) < 0) {
goto done;
}
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 2d1d1443a7..efd2ca3db2 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -1988,7 +1988,7 @@ char *erts_convert_filename_to_encoding(Eterm name, char *statbuf, size_t statbu
is_list(name) ||
(allow_empty && is_nil(name))) {
Sint need;
- if ((need = erts_native_filename_need(name,encoding)) < 0) {
+ if ((need = erts_native_filename_need(name, encoding, 0)) < 0) {
return NULL;
}
if (encoding == ERL_FILENAME_WIN_WCHAR) {
@@ -2152,12 +2152,13 @@ Eterm erts_convert_native_to_filename(Process *p, byte *bytes)
}
-Sint erts_native_filename_need(Eterm ioterm, int encoding)
+Sint erts_native_filename_need(Eterm ioterm, int encoding, int allow_null)
{
Eterm *objp;
Eterm obj;
DECLARE_ESTACK(stack);
Sint need = 0;
+ int seen_null = 0;
if (is_atom(ioterm)) {
Atom* ap;
@@ -2194,6 +2195,24 @@ Sint erts_native_filename_need(Eterm ioterm, int encoding)
default:
need = -1;
}
+ if (!allow_null) {
+ /*
+ * Do not allow null in
+ * the middle of filenames
+ */
+ if (need > 0) {
+ byte *name = ap->name;
+ int len = ap->len;
+ for (i = 0; i < len; i++) {
+ if (name[i] == 0)
+ seen_null = 1;
+ else if (seen_null) {
+ need = -1;
+ break;
+ }
+ }
+ }
+ }
DESTROY_ESTACK(stack);
return need;
}
@@ -2224,6 +2243,18 @@ L_Again: /* Restart with sublist, old listend was pushed on stack */
if (is_small(obj)) { /* Always small */
for(;;) {
Uint x = unsigned_val(obj);
+ if (!allow_null) {
+ /*
+ * Do not allow null in
+ * the middle of filenames
+ */
+ if (x == 0)
+ seen_null = 1;
+ else if (seen_null) {
+ DESTROY_ESTACK(stack);
+ return ((Sint) -1);
+ }
+ }
switch (encoding) {
case ERL_FILENAME_LATIN1:
if (x > 255) {
@@ -2515,6 +2546,7 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
BIF_ERROR(BIF_P,BADARG);
}
if (is_binary(BIF_ARG_1)) {
+ int seen_null = 0;
byte *temp_alloc = NULL;
byte *bytes;
byte *err_pos;
@@ -2524,10 +2556,18 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
size = binary_size(BIF_ARG_1);
bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc);
if (encoding != ERL_FILENAME_WIN_WCHAR) {
+ Uint i;
/*Add 0 termination only*/
bin_term = new_binary(BIF_P, NULL, size+1);
bin_p = binary_bytes(bin_term);
- memcpy(bin_p,bytes,size);
+ for (i = 0; i < size; i++) {
+ /* Don't allow null in the middle of filenames... */
+ if (bytes[i] == 0)
+ seen_null = 1;
+ else if (seen_null)
+ goto bin_name_error;
+ bin_p[i] = bytes[i];
+ }
bin_p[size]=0;
erts_free_aligned_binary_bytes(temp_alloc);
BIF_RET(bin_term);
@@ -2541,6 +2581,11 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
bin_term = new_binary(BIF_P, 0, (size+1)*2);
bin_p = binary_bytes(bin_term);
while (size--) {
+ /* Don't allow null in the middle of filenames... */
+ if (*bytes == 0)
+ seen_null = 1;
+ else if (seen_null)
+ goto bin_name_error;
*bin_p++ = *bytes++;
*bin_p++ = 0;
}
@@ -2558,11 +2603,14 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
bin_p[num_chars*2+1] = 0;
erts_free_aligned_binary_bytes(temp_alloc);
BIF_RET(bin_term);
+ bin_name_error:
+ erts_free_aligned_binary_bytes(temp_alloc);
+ BIF_ERROR(BIF_P,BADARG);
} /* binary */
- if ((need = erts_native_filename_need(BIF_ARG_1,encoding)) < 0) {
- BIF_ERROR(BIF_P,BADARG);
+ if ((need = erts_native_filename_need(BIF_ARG_1, encoding, 0)) < 0) {
+ BIF_ERROR(BIF_P,BADARG);
}
if (encoding == ERL_FILENAME_WIN_WCHAR) {
need += 2;
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 182d3aa44e..ddf7f03265 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1253,7 +1253,7 @@ void erts_init_unicode(void);
Sint erts_unicode_set_loop_limit(Sint limit);
void erts_native_filename_put(Eterm ioterm, int encoding, byte *p) ;
-Sint erts_native_filename_need(Eterm ioterm, int encoding);
+Sint erts_native_filename_need(Eterm ioterm, int encoding, int allow_null);
void erts_copy_utf8_to_utf16_little(byte *target, byte *bytes, int num_chars);
int erts_analyze_utf8(byte *source, Uint size,
byte **err_pos, Uint *num_chars, int *left);
diff --git a/erts/preloaded/src/erts.app.src b/erts/preloaded/src/erts.app.src
index 7ab06164b4..beb29a7c89 100644
--- a/erts/preloaded/src/erts.app.src
+++ b/erts/preloaded/src/erts.app.src
@@ -37,7 +37,7 @@
{registered, []},
{applications, []},
{env, []},
- {runtime_dependencies, ["stdlib-3.0", "kernel-5.0", "sasl-3.0.1"]}
+ {runtime_dependencies, ["stdlib-3.4.3", "kernel-5.4.1", "sasl-3.0.1"]}
]}.
%% vim: ft=erlang
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index 00901077d3..be8908dd6b 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -1430,13 +1430,13 @@ merge_types(bool, {atom,A}) ->
merge_bool(A);
merge_types({atom,A}, bool) ->
merge_bool(A);
-merge_types(#ms{id=Id1,valid=B0,slots=Slots},
- #ms{id=Id2,valid=B1,slots=Slots}) ->
+merge_types(#ms{id=Id1,valid=B1,slots=Slots1},
+ #ms{id=Id2,valid=B2,slots=Slots2}) ->
Id = if
Id1 =:= Id2 -> Id1;
true -> make_ref()
end,
- #ms{id=Id,valid=B0 band B1,slots=Slots};
+ #ms{id=Id,valid=B1 band B2,slots=min(Slots1, Slots2)};
merge_types(T1, T2) when T1 =/= T2 ->
%% Too different. All we know is that the type is a 'term'.
term.
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 0ec05456ec..2fe8cd0cff 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -39,7 +39,7 @@
match_string_opt/1,select_on_integer/1,
map_and_binary/1,unsafe_branch_caching/1,
bad_literals/1,good_literals/1,constant_propagation/1,
- parse_xml/1,get_payload/1]).
+ parse_xml/1,get_payload/1,num_slots_different/1]).
-export([coverage_id/1,coverage_external_ignore/2]).
@@ -71,7 +71,7 @@ groups() ->
match_string_opt,select_on_integer,
map_and_binary,unsafe_branch_caching,
bad_literals,good_literals,constant_propagation,parse_xml,
- get_payload]}].
+ get_payload,num_slots_different]}].
init_per_suite(Config) ->
@@ -1524,6 +1524,40 @@ do_get_payload(ExtHdr) ->
<<_:13,_:35>> = ExtHdr#ext_header.ext_hdr_opts,
ExtHdrOptions.
+%% ERL-490
+num_slots_different(_Config) ->
+ Ts = [{<<"de">>, <<"default">>, <<"Remove">>, <<"a">>},
+ {<<"de">>, <<"default">>, <<"Remove from list">>, <<"a">>},
+ {<<"de">>, <<"default">>, <<"Remove from the list">>, <<"a">>},
+ {<<"de">>, <<"default">>, <<"Results">>, <<"Ergebnisse">>},
+ {<<"de">>, <<"default">>, <<"Reservatio">>, <<"a">>},
+ {<<"de">>, <<"navigation">>, <<"Results">>, <<"Ergebnisse">>},
+ {<<"de">>, <<"navigation">>, <<"Resources">>, <<"Ressourcen">>}],
+ _ = [{ok,Res} = lgettext(A, B, C) || {A,B,C,Res} <- Ts],
+
+ {'EXIT',_} = (catch lgettext(<<"d">>, <<"default">>, <<"Remove">>)),
+ {'EXIT',_} = (catch lgettext("", <<"default">>, <<"Remove">>)),
+ {'EXIT',_} = (catch lgettext(<<"de">>, <<"def">>, <<"Remove">>)),
+ {'EXIT',_} = (catch lgettext(<<"de">>, <<"default">>, <<"Res">>)),
+ ok.
+
+
+lgettext(<<"de">>, <<"default">>, <<"Remove">>) ->
+ {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Remove from list">>) ->
+ {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Remove from the list">>) ->
+ {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Results">>) ->
+ {ok, <<"Ergebnisse">>};
+lgettext(<<"de">>, <<"default">>, <<"Reservatio">>) ->
+ {ok, <<"a">>};
+lgettext(<<"de">>, <<"navigation">>, <<"Results">>) ->
+ {ok, <<"Ergebnisse">>};
+lgettext(<<"de">>, <<"navigation">>, <<"Resources">>) ->
+ {ok, <<"Ressourcen">>}.
+
+
check(F, R) ->
R = F().
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index b674b3ca93..593bee74fe 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -59,7 +59,7 @@
terminal supports UTF-8, otherwise <c>latin1</c>. The default can
be overridden using <c>+fnl</c> (to force <c>latin1</c> mode)
or <c>+fnu</c> (to force <c>utf8</c> mode) when starting
- <seealso marker="erts:erl"><c>erts:erl</c></seealso>.</p>
+ <seealso marker="erts:erl"><c>erl</c></seealso>.</p>
<p>On operating systems with transparent naming, files can be
inconsistently named, for example, some files are encoded in UTF-8 while
@@ -81,6 +81,22 @@
<p>See also section <seealso marker="stdlib:unicode_usage#notes-about-raw-filenames">Notes About Raw Filenames</seealso> in the STDLIB User's Guide.</p>
+ <note><p>
+ File operations used to accept filenames containing
+ null characters (integer value zero). This caused
+ the name to be truncated at the first null character.
+ Filenames containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive
+ file operations fail.
+ </p></note>
+ <warning><p>
+ Currently null characters at the end of the filename
+ will be accepted by primitive file operations. Such
+ filenames are however still documented as invalid. The
+ implementation will also change in the future and
+ reject such filenames.
+ </p></warning>
+
</description>
<datatypes>
@@ -96,9 +112,21 @@
</datatype>
<datatype>
<name name="filename"/>
+ <desc>
+ <p>
+ See also the documentation of the
+ <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
+ </p>
+ </desc>
</datatype>
<datatype>
<name name="filename_all"/>
+ <desc>
+ <p>
+ See also the documentation of the
+ <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
+ </p>
+ </desc>
</datatype>
<datatype>
<name name="io_device"/>
@@ -112,21 +140,23 @@
<name name="name"/>
<desc>
<p>If VM is in Unicode filename mode, <c>string()</c> and <c>char()</c>
- are allowed to be &gt; 255.
+ are allowed to be &gt; 255. See also the documentation of the
+ <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
</p>
</desc>
</datatype>
<datatype>
<name name="name_all"/>
<desc>
- <p>If VM is in Unicode filename mode, <c>string()</c> and <c>char()</c>
+ <p>If VM is in Unicode filename mode, characters
are allowed to be &gt; 255.
<c><anno>RawFilename</anno></c> is a filename not subject to
Unicode translation,
meaning that it can contain characters not conforming to
the Unicode encoding expected from the file system
(that is, non-UTF-8 characters although the VM is started
- in Unicode filename mode).
+ in Unicode filename mode). Null characters (integer value zero)
+ are <em>not</em> allowed in filenames (not even at the end).
</p>
</desc>
</datatype>
diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src
index 2a88cc7e26..b5e5f8eb73 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -120,6 +120,6 @@
{applications, []},
{env, [{error_logger, tty}]},
{mod, {kernel, []}},
- {runtime_dependencies, ["erts-9.1", "stdlib-3.4", "sasl-3.0"]}
+ {runtime_dependencies, ["erts-9.1.1", "stdlib-3.4.3", "sasl-3.0"]}
]
}.
diff --git a/lib/kernel/test/file_name_SUITE.erl b/lib/kernel/test/file_name_SUITE.erl
index 899102c908..f23529fec9 100644
--- a/lib/kernel/test/file_name_SUITE.erl
+++ b/lib/kernel/test/file_name_SUITE.erl
@@ -302,7 +302,9 @@ check_normal(Mod) ->
{ok, BC} = Mod:read(FD,1024),
ok = file:close(FD)
end || {regular,Name,Content} <- NormalDir ],
+ {error, badarg} = Mod:rename("fil1\0tmp_fil2","tmp_fil1"),
Mod:rename("fil1","tmp_fil1"),
+ {error, badarg} = Mod:read_file("tmp_fil1\0.txt"),
{ok, <<"fil1">>} = Mod:read_file("tmp_fil1"),
{error,enoent} = Mod:read_file("fil1"),
Mod:rename("tmp_fil1","fil1"),
diff --git a/lib/stdlib/doc/src/filelib.xml b/lib/stdlib/doc/src/filelib.xml
index 80c4acffdb..57c4348745 100644
--- a/lib/stdlib/doc/src/filelib.xml
+++ b/lib/stdlib/doc/src/filelib.xml
@@ -45,6 +45,30 @@
<p>For more information about raw filenames, see the
<seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+ <note>
+ <p>
+ Functionality in this module generally assumes valid input and
+ does not necessarily fail on input that does not use a valid
+ encoding. You can validate the encoding of a filename using
+ <seealso marker="stdlib:filename#validate/1">filename:validate/1</seealso>.
+ </p>
+ <p>
+ File operations used to accept filenames containing
+ null characters (integer value zero). This caused
+ the name to be truncated at the first null character.
+ Filenames containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive
+ file operations fail.
+ </p>
+ </note>
+ <warning><p>
+ Currently null characters at the end of the filename
+ will be accepted by primitive file operations. Such
+ filenames are however still documented as invalid. The
+ implementation will also change in the future and
+ reject such filenames.
+ </p></warning>
</description>
<datatypes>
diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml
index 14fd5ef787..b6028fc066 100644
--- a/lib/stdlib/doc/src/filename.xml
+++ b/lib/stdlib/doc/src/filename.xml
@@ -46,7 +46,10 @@
filename by removing redundant directory separators, use
<seealso marker="#join/1"><c>join/1</c></seealso>.</p>
- <p>The module supports raw filenames in the way that if a binary is
+ <p>
+ The module supports
+ <seealso marker="unicode_usage#notes-about-raw-filenames">raw
+ filenames</seealso> in the way that if a binary is
present, or the filename cannot be interpreted according to the return
value of <seealso marker="kernel:file#native_name_encoding/0">
<c>file:native_name_encoding/0</c></seealso>, a raw filename is also
@@ -56,6 +59,30 @@
(the join operation is performed of course). For more information
about raw filenames, see the
<seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+ <note>
+ <p>
+ Functionality in this module generally assumes valid input and
+ does not necessarily fail on input that does not use a valid
+ encoding. You can validate the encoding of a filename using
+ <seealso marker="#validate/1">filename:validate/1</seealso>.
+ </p>
+ <p>
+ File operations used to accept filenames containing
+ null characters (integer value zero). This caused
+ the name to be truncated at the first null character.
+ Filenames containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive
+ file operations fail.
+ </p>
+ </note>
+ <warning><p>
+ Currently null characters at the end of the filename
+ will be accepted by primitive file operations. Such
+ filenames are however still documented as invalid. The
+ implementation will also change in the future and
+ reject such filenames.
+ </p></warning>
</description>
<datatypes>
<datatype>
@@ -555,6 +582,55 @@ unsafe</pre>
["a:/","msdev","include"]</pre>
</desc>
</func>
+
+ <func>
+ <name name="validate" arity="1"/>
+ <fsummary>Validate encoding of filename</fsummary>
+ <desc>
+ <p>
+ Validates filename encoding. Returns <c>true</c> if
+ <c><anno>FileName</anno></c> has a valid encoding;
+ otherwise, returns <c>false</c>.
+ </p>
+ <taglist>
+ <tag>Ordinary Filename</tag>
+ <item>
+ <p>
+ Type: <c><anno>FileName</anno> = </c><seealso marker="kernel:file#type-name"><c>file:name()</c></seealso>
+ </p>
+ <p>
+ Validates encoding against the
+ <seealso marker="kernel:file#native_name_encoding/0">native file
+ name encoding</seealso>, and the
+ capabilities of the operating system used.
+ Regardless of configuration and OS, null
+ characters (integer value zero) will be
+ rejected by the validation (even when only
+ present at the end of the filename).
+ </p>
+ </item>
+ <tag><seealso marker="unicode_usage#notes-about-raw-filenames">Raw
+ Filename</seealso></tag>
+ <item>
+ <p>
+ Type: <c><anno>FileName</anno> = binary()</c>
+ </p>
+ <p>
+ The encoding will not be interpreted, but
+ null bytes (integer value zero) will be
+ rejected by the validation (even when only
+ present at the end of the filename).
+ </p>
+ </item>
+ </taglist>
+ <p>
+ For information on filename encoding see the documentation
+ of unicode filenames in
+ <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB
+ Users Guide ➜ Using Unicode in Erlang ➜ Unicode Filenames</seealso>.
+ </p>
+ </desc>
+ </func>
</funcs>
</erlref>
diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml
index 26dc46719e..ff1f864e22 100644
--- a/lib/stdlib/doc/src/unicode_usage.xml
+++ b/lib/stdlib/doc/src/unicode_usage.xml
@@ -719,8 +719,8 @@ Eshell V5.10.1 (abort with ^G)
</section>
<section>
- <title>Unicode Filenames</title>
<marker id="unicode_file_names"/>
+ <title>Unicode Filenames</title>
<p>Most modern operating systems support Unicode filenames in some way.
There are many different ways to do this and Erlang by default treats the
different approaches differently:</p>
@@ -855,8 +855,8 @@ Eshell V5.10.1 (abort with ^G)
</note>
<section>
- <title>Notes About Raw Filenames</title>
<marker id="notes-about-raw-filenames"/>
+ <title>Notes About Raw Filenames</title>
<p>Raw filenames were introduced together with Unicode filename support
in ERTS 5.8.2 (Erlang/OTP R14B01). The reason &quot;raw
filenames&quot; were introduced in the system was
diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index 9bf4290916..1c3ab6d274 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -41,6 +41,7 @@
safe_relative_path/1]).
-export([find_src/1, find_src/2]). % deprecated
-export([basedir/2, basedir/3]).
+-export([validate/1]).
%% Undocumented and unsupported exports.
-export([append/2]).
@@ -1135,3 +1136,72 @@ basedir_os_type() ->
{win32,_} -> windows;
_ -> linux
end.
+
+%%
+%% validate/1
+%%
+
+-spec validate(FileName) -> boolean() when
+ FileName :: file:name_all().
+
+validate(FileName) when is_binary(FileName) ->
+ %% Raw filename...
+ validate_bin(FileName);
+validate(FileName) when is_list(FileName);
+ is_atom(FileName) ->
+ validate_list(FileName,
+ file:native_name_encoding(),
+ os:type()).
+
+validate_list(FileName, Enc, Os) ->
+ try
+ true = validate_list(FileName, Enc, Os, 0) > 0
+ catch
+ _ : _ -> false
+ end.
+
+validate_list([], _Enc, _Os, Chars) ->
+ Chars;
+validate_list(C, Enc, Os, Chars) when is_integer(C) ->
+ validate_char(C, Enc, Os),
+ Chars+1;
+validate_list(A, Enc, Os, Chars) when is_atom(A) ->
+ validate_list(atom_to_list(A), Enc, Os, Chars);
+validate_list([H|T], Enc, Os, Chars) ->
+ NewChars = validate_list(H, Enc, Os, Chars),
+ validate_list(T, Enc, Os, NewChars).
+
+%% C is always an integer...
+% validate_char(C, _, _) when not is_integer(C) ->
+% throw(invalid);
+validate_char(C, _, _) when C < 1 ->
+ throw(invalid); %% No negative or null characters...
+validate_char(C, latin1, _) when C > 255 ->
+ throw(invalid);
+validate_char(C, utf8, _) when C >= 16#110000 ->
+ throw(invalid);
+validate_char(C, utf8, {win32, _}) when C > 16#ffff ->
+ throw(invalid); %% invalid win wchar...
+validate_char(_C, utf8, {win32, _}) ->
+ ok; %% Range below is accepted on windows...
+validate_char(C, utf8, _) when 16#D800 =< C, C =< 16#DFFF ->
+ throw(invalid); %% invalid unicode range...
+validate_char(_, _, _) ->
+ ok.
+
+validate_bin(Bin) ->
+ %% Raw filename. That is, we do not interpret
+ %% the encoding, but we still do not accept
+ %% null characters...
+ try
+ true = validate_bin(Bin, 0) > 0
+ catch
+ _ : _ -> false
+ end.
+
+validate_bin(<<>>, Bs) ->
+ Bs;
+validate_bin(<<0, _Rest/binary>>, _Bs) ->
+ throw(invalid); %% No null characters allowed...
+validate_bin(<<_B, Rest/binary>>, Bs) ->
+ validate_bin(Rest, Bs+1).
diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src
index 3c449d3cb9..41c89270aa 100644
--- a/lib/stdlib/src/stdlib.app.src
+++ b/lib/stdlib/src/stdlib.app.src
@@ -107,7 +107,7 @@
dets]},
{applications, [kernel]},
{env, []},
- {runtime_dependencies, ["sasl-3.0","kernel-5.0","erts-9.0","crypto-3.3",
+ {runtime_dependencies, ["sasl-3.0","kernel-5.4.1","erts-9.1.1","crypto-3.3",
"compiler-5.0"]}
]}.
diff --git a/lib/stdlib/test/filename_SUITE.erl b/lib/stdlib/test/filename_SUITE.erl
index fc77593bb8..4c82ec1c22 100644
--- a/lib/stdlib/test/filename_SUITE.erl
+++ b/lib/stdlib/test/filename_SUITE.erl
@@ -30,6 +30,7 @@
-export([pathtype_bin/1,rootname_bin/1,split_bin/1]).
-export([t_basedir_api/1, t_basedir_xdg/1, t_basedir_windows/1]).
-export([safe_relative_path/1]).
+-export([validate/1]).
-include_lib("common_test/include/ct.hrl").
@@ -43,7 +44,8 @@ all() ->
absname_bin, absname_bin_2,
{group,p},
t_basedir_xdg, t_basedir_windows,
- safe_relative_path].
+ safe_relative_path,
+ validate].
groups() ->
[{p, [parallel],
@@ -1011,3 +1013,56 @@ basedir_xdg_def(Type,Home,Name) ->
Dir <- ["/usr/local/share/","/usr/share/"]];
site_config -> [filename:join(["/etc/xdg",Name])]
end.
+
+validate(Config) when is_list(Config) ->
+ true = filename:validate(blipp),
+ false = filename:validate('bli\0pp'),
+ false = filename:validate('blipp\0'),
+ true = filename:validate("blipp"),
+ false = filename:validate("bli"++[0]++"pp"),
+ false = filename:validate("blipp"++[0]),
+ true = filename:validate(["one ", blipp, "blopp"]),
+ false = filename:validate(["one ", 'bli\0pp', "blopp"]),
+ false = filename:validate(["one ", 'blipp\0', "blopp"]),
+ false = filename:validate(["one ", 'blipp', "blopp\0"]),
+ false = filename:validate([0]),
+ false = filename:validate([]),
+ false = filename:validate([[[]],[[[[],[[[[[[[[]]], '', [[[[[]]]]]]]]]]]]]]),
+ false = filename:validate([16#110000]),
+ false = filename:validate([16#110001]),
+ false = filename:validate([16#110000*2]),
+ case file:native_name_encoding() of
+ latin1 ->
+ true = filename:validate(lists:seq(1, 255)),
+ false = filename:validate([256]);
+ utf8 ->
+ true = filename:validate(lists:seq(1, 16#D7FF)),
+ true = filename:validate(lists:seq(16#E000, 16#FFFF)),
+ true = filename:validate([16#FFFF]),
+ case os:type() of
+ {win32, _} ->
+ false = filename:validate([16#10000]),
+ true = filename:validate(lists:seq(16#D800,16#DFFF));
+ _ ->
+ true = filename:validate([16#10000]),
+ true = filename:validate([16#10FFFF]),
+ lists:foreach(fun (C) ->
+ false = filename:validate([C])
+ end,
+ lists:seq(16#D800,16#DFFF))
+ end
+
+ end,
+ true = filename:validate(<<1,17,255>>),
+ false = filename:validate(<<1,0,17,255>>),
+ false = filename:validate(<<1,17,255,0>>),
+ false = filename:validate(<<>>),
+ lists:foreach(fun (N) ->
+ true = filename:validate(N)
+ end,
+ code:get_path()),
+ ok.
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 04:29:23 +0000