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platform/vfs.c: allow relative paths in configuration

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This commit is contained in:
Shiz 2019-12-22 22:38:37 +01:00
parent ad24fe10bb
commit 9137a36a53
3 changed files with 33 additions and 8 deletions
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1
meson.build
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@ -26,6 +26,7 @@ if meson.get_compiler('c').get_id() != 'msvc'
endif
cc = meson.get_compiler('c')
shlwapi_lib = cc.find_library('shlwapi')
dinput8_lib = cc.find_library('dinput8')
dxguid_lib = cc.find_library('dxguid')
xinput_lib = cc.find_library('xinput')

1
platform/meson.build
View File

@ -5,6 +5,7 @@ platform_lib = static_library(
c_pch : '../precompiled.h',
dependencies : [
capnhook.get_variable('hook_dep'),
shlwapi_lib,
],
sources : [
'amvideo.c',

39
platform/vfs.c
View File

@ -1,4 +1,5 @@
#include <windows.h>
#include <shlwapi.h>
#include <assert.h>
#include <stdint.h>
@ -12,7 +13,7 @@
#include "util/dprintf.h"
static void vfs_slashify(wchar_t *path, size_t max_count);
static void vfs_fixup_path(wchar_t *path, size_t max_count);
static HRESULT vfs_mkdir_rec(const wchar_t *path);
static HRESULT vfs_path_hook(const wchar_t *src, wchar_t *dest, size_t *count);
static HRESULT vfs_path_hook_nthome(
@ -91,12 +92,12 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
memcpy(&vfs_config, config, sizeof(*config));
vfs_slashify(vfs_nthome_real, _countof(vfs_nthome_real));
vfs_slashify(vfs_config.amfs, _countof(vfs_config.amfs));
vfs_slashify(vfs_config.appdata, _countof(vfs_config.appdata));
vfs_fixup_path(vfs_nthome_real, _countof(vfs_nthome_real));
vfs_fixup_path(vfs_config.amfs, _countof(vfs_config.amfs));
vfs_fixup_path(vfs_config.appdata, _countof(vfs_config.appdata));
if (vfs_config.option[0] != L'\0') {
vfs_slashify(vfs_config.option, _countof(vfs_config.option));
vfs_fixup_path(vfs_config.option, _countof(vfs_config.option));
}
hr = vfs_mkdir_rec(vfs_config.amfs);
@ -164,24 +165,46 @@ HRESULT vfs_hook_init(const struct vfs_config *config)
return S_OK;
}
static void vfs_slashify(wchar_t *path, size_t max_count)
static void vfs_fixup_path(wchar_t *path, size_t max_count)
{
size_t count;
wchar_t abspath[MAX_PATH];
assert(path != NULL);
/* Requirement for PathIsRelativeW */
assert(max_count <= MAX_PATH);
count = wcslen(path);
if (PathIsRelativeW(path)) {
count = GetFullPathNameW(path, _countof(abspath), abspath, NULL);
/* GetFullPathName's length return value is tricky, because it includes
the NUL terminator on failure, but doesn't on success.
Check if it fits the temp buf (else it's a failure and includes NUL
anyway), then if it fits the target buf, NUL included. */
if (count == 0 || count > _countof(abspath) || count >= max_count) {
goto fail;
}
wcscpy_s(path, max_count, abspath);
} else {
count = wcslen(path);
}
if (path[count - 1] == L'\\' || path[count - 1] == L'/') {
return;
}
if (count + 2 > max_count) {
abort();
goto fail;
}
path[count + 0] = L'\\';
path[count + 1] = L'\0';
return;
fail:
dprintf("Vfs: FATAL: Path too long: %S\n", path);
abort();
}
static HRESULT vfs_mkdir_rec(const wchar_t *path)