/* * Copyright 2018 Nikolay Sivov * Copyright 2018 Zhiyi Zhang * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include #include "windef.h" #include "winbase.h" #include "pathcch.h" #include "strsafe.h" #include "shlwapi.h" #include "wine/debug.h" #include "wine/unicode.h" WINE_DEFAULT_DEBUG_CHANNEL(path); static char *char_next(const char *ptr) { if (!*ptr) return (LPSTR)ptr; if (IsDBCSLeadByte( ptr[0] ) && ptr[1]) return (LPSTR)(ptr + 2); return (LPSTR)(ptr + 1); } static char * char_prev(const char *start, const char *ptr) { while (*start && (start < ptr)) { const char *next = char_next(start); if (next >= ptr) break; start = next; } return (char *)start; } static SIZE_T strnlenW(const WCHAR *string, SIZE_T maxlen) { SIZE_T i; for (i = 0; i < maxlen; i++) if (!string[i]) break; return i; } static BOOL is_prefixed_unc(const WCHAR *string) { static const WCHAR prefixed_unc[] = {'\\', '\\', '?', '\\', 'U', 'N', 'C', '\\'}; return !strncmpiW(string, prefixed_unc, ARRAY_SIZE(prefixed_unc)); } static BOOL is_prefixed_disk(const WCHAR *string) { static const WCHAR prefix[] = {'\\', '\\', '?', '\\'}; return !strncmpW(string, prefix, ARRAY_SIZE(prefix)) && isalphaW(string[4]) && string[5] == ':'; } static BOOL is_prefixed_volume(const WCHAR *string) { static const WCHAR prefixed_volume[] = {'\\', '\\', '?', '\\', 'V', 'o', 'l', 'u', 'm', 'e'}; const WCHAR *guid; INT i = 0; if (strncmpiW(string, prefixed_volume, ARRAY_SIZE(prefixed_volume))) return FALSE; guid = string + ARRAY_SIZE(prefixed_volume); while (i <= 37) { switch (i) { case 0: if (guid[i] != '{') return FALSE; break; case 9: case 14: case 19: case 24: if (guid[i] != '-') return FALSE; break; case 37: if (guid[i] != '}') return FALSE; break; default: if (!isalnumW(guid[i])) return FALSE; break; } i++; } return TRUE; } /* Get the next character beyond end of the segment. Return TRUE if the last segment ends with a backslash */ static BOOL get_next_segment(const WCHAR *next, const WCHAR **next_segment) { while (*next && *next != '\\') next++; if (*next == '\\') { *next_segment = next + 1; return TRUE; } else { *next_segment = next; return FALSE; } } /* Find the last character of the root in a path, if there is one, without any segments */ static const WCHAR *get_root_end(const WCHAR *path) { /* Find path root */ if (is_prefixed_volume(path)) return path[48] == '\\' ? path + 48 : path + 47; else if (is_prefixed_unc(path)) return path + 7; else if (is_prefixed_disk(path)) return path[6] == '\\' ? path + 6 : path + 5; /* \\ */ else if (path[0] == '\\' && path[1] == '\\') return path + 1; /* \ */ else if (path[0] == '\\') return path; /* X:\ */ else if (isalphaW(path[0]) && path[1] == ':') return path[2] == '\\' ? path + 2 : path + 1; else return NULL; } HRESULT WINAPI PathAllocCanonicalize(const WCHAR *path_in, DWORD flags, WCHAR **path_out) { WCHAR *buffer, *dst; const WCHAR *src; const WCHAR *root_end; SIZE_T buffer_size, length; TRACE("%s %#x %p\n", debugstr_w(path_in), flags, path_out); if (!path_in || !path_out || ((flags & PATHCCH_FORCE_ENABLE_LONG_NAME_PROCESS) && (flags & PATHCCH_FORCE_DISABLE_LONG_NAME_PROCESS)) || (flags & (PATHCCH_FORCE_ENABLE_LONG_NAME_PROCESS | PATHCCH_FORCE_DISABLE_LONG_NAME_PROCESS) && !(flags & PATHCCH_ALLOW_LONG_PATHS)) || ((flags & PATHCCH_ENSURE_IS_EXTENDED_LENGTH_PATH) && (flags & PATHCCH_ALLOW_LONG_PATHS))) { if (path_out) *path_out = NULL; return E_INVALIDARG; } length = strlenW(path_in); if ((length + 1 > MAX_PATH && !(flags & (PATHCCH_ALLOW_LONG_PATHS | PATHCCH_ENSURE_IS_EXTENDED_LENGTH_PATH))) || (length + 1 > PATHCCH_MAX_CCH)) { *path_out = NULL; return HRESULT_FROM_WIN32(ERROR_FILENAME_EXCED_RANGE); } /* PATHCCH_ENSURE_IS_EXTENDED_LENGTH_PATH implies PATHCCH_DO_NOT_NORMALIZE_SEGMENTS */ if (flags & PATHCCH_ENSURE_IS_EXTENDED_LENGTH_PATH) flags |= PATHCCH_DO_NOT_NORMALIZE_SEGMENTS; /* path length + possible \\?\ addition + possible \ addition + NUL */ buffer_size = (length + 6) * sizeof(WCHAR); buffer = LocalAlloc(LMEM_ZEROINIT, buffer_size); if (!buffer) { *path_out = NULL; return E_OUTOFMEMORY; } src = path_in; dst = buffer; root_end = get_root_end(path_in); if (root_end) root_end = buffer + (root_end - path_in); /* Copy path root */ if (root_end) { memcpy(dst, src, (root_end - buffer + 1) * sizeof(WCHAR)); src += root_end - buffer + 1; if(PathCchStripPrefix(dst, length + 6) == S_OK) { /* Fill in \ in X:\ if the \ is missing */ if(isalphaW(dst[0]) && dst[1] == ':' && dst[2]!= '\\') { dst[2] = '\\'; dst[3] = 0; } dst = buffer + strlenW(buffer); root_end = dst; } else dst += root_end - buffer + 1; } while (*src) { if (src[0] == '.') { if (src[1] == '.') { /* Keep one . after * */ if (dst > buffer && dst[-1] == '*') { *dst++ = *src++; continue; } /* Keep the . if one of the following is true: * 1. PATHCCH_DO_NOT_NORMALIZE_SEGMENTS * 2. in form of a..b */ if (dst > buffer && (((flags & PATHCCH_DO_NOT_NORMALIZE_SEGMENTS) && dst[-1] != '\\') || (dst[-1] != '\\' && src[2] != '\\' && src[2]))) { *dst++ = *src++; *dst++ = *src++; continue; } /* Remove the \ before .. if the \ is not part of root */ if (dst > buffer && dst[-1] == '\\' && (!root_end || dst - 1 > root_end)) { *--dst = '\0'; /* Remove characters until a \ is encountered */ while (dst > buffer) { if (dst[-1] == '\\') { *--dst = 0; break; } else *--dst = 0; } } /* Remove the extra \ after .. if the \ before .. wasn't deleted */ else if (src[2] == '\\') src++; src += 2; } else { /* Keep the . if one of the following is true: * 1. PATHCCH_DO_NOT_NORMALIZE_SEGMENTS * 2. in form of a.b, which is used in domain names * 3. *. */ if (dst > buffer && ((flags & PATHCCH_DO_NOT_NORMALIZE_SEGMENTS && dst[-1] != '\\') || (dst[-1] != '\\' && src[1] != '\\' && src[1]) || (dst[-1] == '*'))) { *dst++ = *src++; continue; } /* Remove the \ before . if the \ is not part of root */ if (dst > buffer && dst[-1] == '\\' && (!root_end || dst - 1 > root_end)) dst--; /* Remove the extra \ after . if the \ before . wasn't deleted */ else if (src[1] == '\\') src++; src++; } /* If X:\ is not complete, then complete it */ if (isalphaW(buffer[0]) && buffer[1] == ':' && buffer[2] != '\\') { root_end = buffer + 2; dst = buffer + 3; buffer[2] = '\\'; /* If next character is \, use the \ to fill in */ if (src[0] == '\\') src++; } } /* Copy over */ else *dst++ = *src++; } /* End the path */ *dst = 0; /* If result path is empty, fill in \ */ if (!*buffer) { buffer[0] = '\\'; buffer[1] = 0; } /* Extend the path if needed */ length = strlenW(buffer); if (((length + 1 > MAX_PATH && isalphaW(buffer[0]) && buffer[1] == ':') || (isalphaW(buffer[0]) && buffer[1] == ':' && flags & PATHCCH_ENSURE_IS_EXTENDED_LENGTH_PATH)) && !(flags & PATHCCH_FORCE_ENABLE_LONG_NAME_PROCESS)) { memmove(buffer + 4, buffer, (length + 1) * sizeof(WCHAR)); buffer[0] = '\\'; buffer[1] = '\\'; buffer[2] = '?'; buffer[3] = '\\'; } /* Add a trailing backslash to the path if needed */ if (flags & PATHCCH_ENSURE_TRAILING_SLASH) PathCchAddBackslash(buffer, buffer_size); *path_out = buffer; return S_OK; } HRESULT WINAPI PathAllocCombine(const WCHAR *path1, const WCHAR *path2, DWORD flags, WCHAR **out) { SIZE_T combined_length, length2; WCHAR *combined_path; BOOL from_path2 = FALSE; HRESULT hr; TRACE("%s %s %#x %p\n", wine_dbgstr_w(path1), wine_dbgstr_w(path2), flags, out); if ((!path1 && !path2) || !out) { if (out) *out = NULL; return E_INVALIDARG; } if (!path1 || !path2) return PathAllocCanonicalize(path1 ? path1 : path2, flags, out); /* If path2 is fully qualified, use path2 only */ if ((isalphaW(path2[0]) && path2[1] == ':') || (path2[0] == '\\' && path2[1] == '\\')) { path1 = path2; path2 = NULL; from_path2 = TRUE; } length2 = path2 ? strlenW(path2) : 0; /* path1 length + path2 length + possible backslash + NULL */ combined_length = strlenW(path1) + length2 + 2; combined_path = HeapAlloc(GetProcessHeap(), 0, combined_length * sizeof(WCHAR)); if (!combined_path) { *out = NULL; return E_OUTOFMEMORY; } lstrcpyW(combined_path, path1); PathCchStripPrefix(combined_path, combined_length); if (from_path2) PathCchAddBackslashEx(combined_path, combined_length, NULL, NULL); if (path2 && path2[0]) { if (path2[0] == '\\' && path2[1] != '\\') { PathCchStripToRoot(combined_path, combined_length); path2++; } PathCchAddBackslashEx(combined_path, combined_length, NULL, NULL); lstrcatW(combined_path, path2); } hr = PathAllocCanonicalize(combined_path, flags, out); HeapFree(GetProcessHeap(), 0, combined_path); return hr; } HRESULT WINAPI PathCchAddBackslash(WCHAR *path, SIZE_T size) { return PathCchAddBackslashEx(path, size, NULL, NULL); } HRESULT WINAPI PathCchAddBackslashEx(WCHAR *path, SIZE_T size, WCHAR **endptr, SIZE_T *remaining) { BOOL needs_termination; SIZE_T length; TRACE("%s, %lu, %p, %p\n", debugstr_w(path), size, endptr, remaining); length = strlenW(path); needs_termination = size && length && path[length - 1] != '\\'; if (length >= (needs_termination ? size - 1 : size)) { if (endptr) *endptr = NULL; if (remaining) *remaining = 0; return STRSAFE_E_INSUFFICIENT_BUFFER; } if (!needs_termination) { if (endptr) *endptr = path + length; if (remaining) *remaining = size - length; return S_FALSE; } path[length++] = '\\'; path[length] = 0; if (endptr) *endptr = path + length; if (remaining) *remaining = size - length; return S_OK; } HRESULT WINAPI PathCchAddExtension(WCHAR *path, SIZE_T size, const WCHAR *extension) { const WCHAR *existing_extension, *next; SIZE_T path_length, extension_length, dot_length; BOOL has_dot; HRESULT hr; TRACE("%s %lu %s\n", wine_dbgstr_w(path), size, wine_dbgstr_w(extension)); if (!path || !size || size > PATHCCH_MAX_CCH || !extension) return E_INVALIDARG; next = extension; while (*next) { if ((*next == '.' && next > extension) || *next == ' ' || *next == '\\') return E_INVALIDARG; next++; } has_dot = extension[0] == '.'; hr = PathCchFindExtension(path, size, &existing_extension); if (FAILED(hr)) return hr; if (*existing_extension) return S_FALSE; path_length = strnlenW(path, size); dot_length = has_dot ? 0 : 1; extension_length = strlenW(extension); if (path_length + dot_length + extension_length + 1 > size) return STRSAFE_E_INSUFFICIENT_BUFFER; /* If extension is empty or only dot, return S_OK with path unchanged */ if (!extension[0] || (extension[0] == '.' && !extension[1])) return S_OK; if (!has_dot) { path[path_length] = '.'; path_length++; } strcpyW(path + path_length, extension); return S_OK; } HRESULT WINAPI PathCchAppend(WCHAR *path1, SIZE_T size, const WCHAR *path2) { TRACE("%s %lu %s\n", wine_dbgstr_w(path1), size, wine_dbgstr_w(path2)); return PathCchAppendEx(path1, size, path2, PATHCCH_NONE); } HRESULT WINAPI PathCchAppendEx(WCHAR *path1, SIZE_T size, const WCHAR *path2, DWORD flags) { HRESULT hr; WCHAR *result; TRACE("%s %lu %s %#x\n", wine_dbgstr_w(path1), size, wine_dbgstr_w(path2), flags); if (!path1 || !size) return E_INVALIDARG; /* Create a temporary buffer for result because we need to keep path1 unchanged if error occurs. * And PathCchCombineEx writes empty result if there is error so we can't just use path1 as output * buffer for PathCchCombineEx */ result = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR)); if (!result) return E_OUTOFMEMORY; /* Avoid the single backslash behavior with PathCchCombineEx when appending */ if (path2 && path2[0] == '\\' && path2[1] != '\\') path2++; hr = PathCchCombineEx(result, size, path1, path2, flags); if (SUCCEEDED(hr)) memcpy(path1, result, size * sizeof(WCHAR)); HeapFree(GetProcessHeap(), 0, result); return hr; } HRESULT WINAPI PathCchCanonicalize(WCHAR *out, SIZE_T size, const WCHAR *in) { TRACE("%p %lu %s\n", out, size, wine_dbgstr_w(in)); /* Not X:\ and path > MAX_PATH - 4, return HRESULT_FROM_WIN32(ERROR_FILENAME_EXCED_RANGE) */ if (strlenW(in) > MAX_PATH - 4 && !(isalphaW(in[0]) && in[1] == ':' && in[2] == '\\')) return HRESULT_FROM_WIN32(ERROR_FILENAME_EXCED_RANGE); return PathCchCanonicalizeEx(out, size, in, PATHCCH_NONE); } HRESULT WINAPI PathCchCanonicalizeEx(WCHAR *out, SIZE_T size, const WCHAR *in, DWORD flags) { WCHAR *buffer; SIZE_T length; HRESULT hr; TRACE("%p %lu %s %#x\n", out, size, wine_dbgstr_w(in), flags); if (!size) return E_INVALIDARG; hr = PathAllocCanonicalize(in, flags, &buffer); if (FAILED(hr)) return hr; length = strlenW(buffer); if (size < length + 1) { /* No root and path > MAX_PATH - 4, return HRESULT_FROM_WIN32(ERROR_FILENAME_EXCED_RANGE) */ if (length > MAX_PATH - 4 && !(in[0] == '\\' || (isalphaW(in[0]) && in[1] == ':' && in[2] == '\\'))) hr = HRESULT_FROM_WIN32(ERROR_FILENAME_EXCED_RANGE); else hr = STRSAFE_E_INSUFFICIENT_BUFFER; } if (SUCCEEDED(hr)) { memcpy(out, buffer, (length + 1) * sizeof(WCHAR)); /* Fill a backslash at the end of X: */ if (isalphaW(out[0]) && out[1] == ':' && !out[2] && size > 3) { out[2] = '\\'; out[3] = 0; } } LocalFree(buffer); return hr; } HRESULT WINAPI PathCchCombine(WCHAR *out, SIZE_T size, const WCHAR *path1, const WCHAR *path2) { TRACE("%p %s %s\n", out, wine_dbgstr_w(path1), wine_dbgstr_w(path2)); return PathCchCombineEx(out, size, path1, path2, PATHCCH_NONE); } HRESULT WINAPI PathCchCombineEx(WCHAR *out, SIZE_T size, const WCHAR *path1, const WCHAR *path2, DWORD flags) { HRESULT hr; WCHAR *buffer; SIZE_T length; TRACE("%p %s %s %#x\n", out, wine_dbgstr_w(path1), wine_dbgstr_w(path2), flags); if (!out || !size || size > PATHCCH_MAX_CCH) return E_INVALIDARG; hr = PathAllocCombine(path1, path2, flags, &buffer); if (FAILED(hr)) { out[0] = 0; return hr; } length = strlenW(buffer); if (length + 1 > size) { out[0] = 0; LocalFree(buffer); return STRSAFE_E_INSUFFICIENT_BUFFER; } else { memcpy(out, buffer, (length + 1) * sizeof(WCHAR)); LocalFree(buffer); return S_OK; } } HRESULT WINAPI PathCchFindExtension(const WCHAR *path, SIZE_T size, const WCHAR **extension) { const WCHAR *lastpoint = NULL; SIZE_T counter = 0; TRACE("%s %lu %p\n", wine_dbgstr_w(path), size, extension); if (!path || !size || size > PATHCCH_MAX_CCH) { *extension = NULL; return E_INVALIDARG; } while (*path) { if (*path == '\\' || *path == ' ') lastpoint = NULL; else if (*path == '.') lastpoint = path; path++; counter++; if (counter == size || counter == PATHCCH_MAX_CCH) { *extension = NULL; return E_INVALIDARG; } } *extension = lastpoint ? lastpoint : path; return S_OK; } BOOL WINAPI PathCchIsRoot(const WCHAR *path) { const WCHAR *root_end; const WCHAR *next; BOOL is_unc; TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return FALSE; root_end = get_root_end(path); if (!root_end) return FALSE; if ((is_unc = is_prefixed_unc(path)) || (path[0] == '\\' && path[1] == '\\' && path[2] != '?')) { next = root_end + 1; /* No extra segments */ if ((is_unc && !*next) || (!is_unc && !*next)) return TRUE; /* Has first segment with an ending backslash but no remaining characters */ if (get_next_segment(next, &next) && !*next) return FALSE; /* Has first segment with no ending backslash */ else if (!*next) return TRUE; /* Has first segment with an ending backslash and has remaining characters*/ else { next++; /* Second segment must have no backslash and no remaining characters */ return !get_next_segment(next, &next) && !*next; } } else if (*root_end == '\\' && !root_end[1]) return TRUE; else return FALSE; } HRESULT WINAPI PathCchRemoveBackslash(WCHAR *path, SIZE_T path_size) { WCHAR *path_end; SIZE_T free_size; TRACE("%s %lu\n", debugstr_w(path), path_size); return PathCchRemoveBackslashEx(path, path_size, &path_end, &free_size); } HRESULT WINAPI PathCchRemoveBackslashEx(WCHAR *path, SIZE_T path_size, WCHAR **path_end, SIZE_T *free_size) { const WCHAR *root_end; SIZE_T path_length; TRACE("%s %lu %p %p\n", debugstr_w(path), path_size, path_end, free_size); if (!path_size || !path_end || !free_size) { if (path_end) *path_end = NULL; if (free_size) *free_size = 0; return E_INVALIDARG; } path_length = strnlenW(path, path_size); if (path_length == path_size && !path[path_length]) return E_INVALIDARG; root_end = get_root_end(path); if (path_length > 0 && path[path_length - 1] == '\\') { *path_end = path + path_length - 1; *free_size = path_size - path_length + 1; /* If the last character is beyond end of root */ if (!root_end || path + path_length - 1 > root_end) { path[path_length - 1] = 0; return S_OK; } else return S_FALSE; } else { *path_end = path + path_length; *free_size = path_size - path_length; return S_FALSE; } } HRESULT WINAPI PathCchRemoveExtension(WCHAR *path, SIZE_T size) { const WCHAR *extension; WCHAR *next; HRESULT hr; TRACE("%s %lu\n", wine_dbgstr_w(path), size); if (!path || !size || size > PATHCCH_MAX_CCH) return E_INVALIDARG; hr = PathCchFindExtension(path, size, &extension); if (FAILED(hr)) return hr; next = path + (extension - path); while (next - path < size && *next) *next++ = 0; return next == extension ? S_FALSE : S_OK; } HRESULT WINAPI PathCchRemoveFileSpec(WCHAR *path, SIZE_T size) { const WCHAR *root_end = NULL; SIZE_T length; WCHAR *last; TRACE("%s %lu\n", wine_dbgstr_w(path), size); if (!path || !size || size > PATHCCH_MAX_CCH) return E_INVALIDARG; if (PathCchIsRoot(path)) return S_FALSE; PathCchSkipRoot(path, &root_end); /* The backslash at the end of UNC and \\* are not considered part of root in this case */ if (root_end && root_end > path && root_end[-1] == '\\' && (is_prefixed_unc(path) || (path[0] == '\\' && path[1] == '\\' && path[2] != '?'))) root_end--; length = strlenW(path); last = path + length - 1; while (last >= path && (!root_end || last >= root_end)) { if (last - path >= size) return E_INVALIDARG; if (*last == '\\') { *last-- = 0; break; } *last-- = 0; } return last != path + length - 1 ? S_OK : S_FALSE; } HRESULT WINAPI PathCchRenameExtension(WCHAR *path, SIZE_T size, const WCHAR *extension) { HRESULT hr; TRACE("%s %lu %s\n", wine_dbgstr_w(path), size, wine_dbgstr_w(extension)); hr = PathCchRemoveExtension(path, size); if (FAILED(hr)) return hr; hr = PathCchAddExtension(path, size, extension); return FAILED(hr) ? hr : S_OK; } HRESULT WINAPI PathCchSkipRoot(const WCHAR *path, const WCHAR **root_end) { static const WCHAR unc_prefix[] = {'\\', '\\', '?'}; TRACE("%s %p\n", debugstr_w(path), root_end); if (!path || !path[0] || !root_end || (!strncmpiW(unc_prefix, path, ARRAY_SIZE(unc_prefix)) && !is_prefixed_volume(path) && !is_prefixed_unc(path) && !is_prefixed_disk(path))) return E_INVALIDARG; *root_end = get_root_end(path); if (*root_end) { (*root_end)++; if (is_prefixed_unc(path)) { get_next_segment(*root_end, root_end); get_next_segment(*root_end, root_end); } else if (path[0] == '\\' && path[1] == '\\' && path[2] != '?') { /* Skip share server */ get_next_segment(*root_end, root_end); /* If mount point is empty, don't skip over mount point */ if (**root_end != '\\') get_next_segment(*root_end, root_end); } } return *root_end ? S_OK : E_INVALIDARG; } HRESULT WINAPI PathCchStripPrefix(WCHAR *path, SIZE_T size) { TRACE("%s %lu\n", wine_dbgstr_w(path), size); if (!path || !size || size > PATHCCH_MAX_CCH) return E_INVALIDARG; if (is_prefixed_unc(path)) { /* \\?\UNC\a -> \\a */ if (size < strlenW(path + 8) + 3) return E_INVALIDARG; strcpyW(path + 2, path + 8); return S_OK; } else if (is_prefixed_disk(path)) { /* \\?\C:\ -> C:\ */ if (size < strlenW(path + 4) + 1) return E_INVALIDARG; strcpyW(path, path + 4); return S_OK; } else return S_FALSE; } HRESULT WINAPI PathCchStripToRoot(WCHAR *path, SIZE_T size) { const WCHAR *root_end; WCHAR *segment_end; BOOL is_unc; TRACE("%s %lu\n", wine_dbgstr_w(path), size); if (!path || !*path || !size || size > PATHCCH_MAX_CCH) return E_INVALIDARG; /* \\\\?\\UNC\\* and \\\\* have to have at least two extra segments to be striped, * e.g. \\\\?\\UNC\\a\\b\\c -> \\\\?\\UNC\\a\\b * \\\\a\\b\\c -> \\\\a\\b */ if ((is_unc = is_prefixed_unc(path)) || (path[0] == '\\' && path[1] == '\\' && path[2] != '?')) { root_end = is_unc ? path + 8 : path + 3; if (!get_next_segment(root_end, &root_end)) return S_FALSE; if (!get_next_segment(root_end, &root_end)) return S_FALSE; if (root_end - path >= size) return E_INVALIDARG; segment_end = path + (root_end - path) - 1; *segment_end = 0; return S_OK; } else if (PathCchSkipRoot(path, &root_end) == S_OK) { if (root_end - path >= size) return E_INVALIDARG; segment_end = path + (root_end - path); if (!*segment_end) return S_FALSE; *segment_end = 0; return S_OK; } else return E_INVALIDARG; } BOOL WINAPI PathIsUNCEx(const WCHAR *path, const WCHAR **server) { const WCHAR *result = NULL; TRACE("%s %p\n", wine_dbgstr_w(path), server); if (is_prefixed_unc(path)) result = path + 8; else if (path[0] == '\\' && path[1] == '\\' && path[2] != '?') result = path + 2; if (server) *server = result; return !!result; } BOOL WINAPI PathIsUNCA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); return path && (path[0] == '\\') && (path[1] == '\\'); } BOOL WINAPI PathIsUNCW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); return path && (path[0] == '\\') && (path[1] == '\\'); } BOOL WINAPI PathIsRelativeA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path || !*path || IsDBCSLeadByte(*path)) return TRUE; return !(*path == '\\' || (*path && path[1] == ':')); } BOOL WINAPI PathIsRelativeW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return TRUE; return !(*path == '\\' || (*path && path[1] == ':')); } BOOL WINAPI PathIsUNCServerShareA(const char *path) { BOOL seen_slash = FALSE; TRACE("%s\n", wine_dbgstr_a(path)); if (path && *path++ == '\\' && *path++ == '\\') { while (*path) { if (*path == '\\') { if (seen_slash) return FALSE; seen_slash = TRUE; } path = char_next(path); } } return seen_slash; } BOOL WINAPI PathIsUNCServerShareW(const WCHAR *path) { BOOL seen_slash = FALSE; TRACE("%s\n", wine_dbgstr_w(path)); if (path && *path++ == '\\' && *path++ == '\\') { while (*path) { if (*path == '\\') { if (seen_slash) return FALSE; seen_slash = TRUE; } path++; } } return seen_slash; } BOOL WINAPI PathIsRootA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path || !*path) return FALSE; if (*path == '\\') { if (!path[1]) return TRUE; /* \ */ else if (path[1] == '\\') { BOOL seen_slash = FALSE; path += 2; /* Check for UNC root path */ while (*path) { if (*path == '\\') { if (seen_slash) return FALSE; seen_slash = TRUE; } path = char_next(path); } return TRUE; } } else if (path[1] == ':' && path[2] == '\\' && path[3] == '\0') return TRUE; /* X:\ */ return FALSE; } BOOL WINAPI PathIsRootW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return FALSE; if (*path == '\\') { if (!path[1]) return TRUE; /* \ */ else if (path[1] == '\\') { BOOL seen_slash = FALSE; path += 2; /* Check for UNC root path */ while (*path) { if (*path == '\\') { if (seen_slash) return FALSE; seen_slash = TRUE; } path++; } return TRUE; } } else if (path[1] == ':' && path[2] == '\\' && path[3] == '\0') return TRUE; /* X:\ */ return FALSE; } BOOL WINAPI PathRemoveFileSpecA(char *path) { char *filespec = path; BOOL modified = FALSE; TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return FALSE; /* Skip directory or UNC path */ if (*path == '\\') filespec = ++path; if (*path == '\\') filespec = ++path; while (*path) { if (*path == '\\') filespec = path; /* Skip dir */ else if (*path == ':') { filespec = ++path; /* Skip drive */ if (*path == '\\') filespec++; } if (!(path = char_next(path))) break; } if (*filespec) { *filespec = '\0'; modified = TRUE; } return modified; } BOOL WINAPI PathRemoveFileSpecW(WCHAR *path) { WCHAR *filespec = path; BOOL modified = FALSE; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return FALSE; /* Skip directory or UNC path */ if (*path == '\\') filespec = ++path; if (*path == '\\') filespec = ++path; while (*path) { if (*path == '\\') filespec = path; /* Skip dir */ else if (*path == ':') { filespec = ++path; /* Skip drive */ if (*path == '\\') filespec++; } path++; } if (*filespec) { *filespec = '\0'; modified = TRUE; } return modified; } BOOL WINAPI PathStripToRootA(char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return FALSE; while (!PathIsRootA(path)) if (!PathRemoveFileSpecA(path)) return FALSE; return TRUE; } BOOL WINAPI PathStripToRootW(WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return FALSE; while (!PathIsRootW(path)) if (!PathRemoveFileSpecW(path)) return FALSE; return TRUE; } LPSTR WINAPI PathAddBackslashA(char *path) { unsigned int len; char *prev = path; TRACE("%s\n", wine_dbgstr_a(path)); if (!path || (len = strlen(path)) >= MAX_PATH) return NULL; if (len) { do { path = char_next(prev); if (*path) prev = path; } while (*path); if (*prev != '\\') { *path++ = '\\'; *path = '\0'; } } return path; } LPWSTR WINAPI PathAddBackslashW(WCHAR *path) { unsigned int len; TRACE("%s\n", wine_dbgstr_w(path)); if (!path || (len = strlenW(path)) >= MAX_PATH) return NULL; if (len) { path += len; if (path[-1] != '\\') { *path++ = '\\'; *path = '\0'; } } return path; } LPSTR WINAPI PathFindExtensionA(const char *path) { const char *lastpoint = NULL; TRACE("%s\n", wine_dbgstr_a(path)); if (path) { while (*path) { if (*path == '\\' || *path == ' ') lastpoint = NULL; else if (*path == '.') lastpoint = path; path = char_next(path); } } return (LPSTR)(lastpoint ? lastpoint : path); } LPWSTR WINAPI PathFindExtensionW(const WCHAR *path) { const WCHAR *lastpoint = NULL; TRACE("%s\n", wine_dbgstr_w(path)); if (path) { while (*path) { if (*path == '\\' || *path == ' ') lastpoint = NULL; else if (*path == '.') lastpoint = path; path++; } } return (LPWSTR)(lastpoint ? lastpoint : path); } BOOL WINAPI PathAddExtensionA(char *path, const char *ext) { unsigned int len; TRACE("%s, %s\n", wine_dbgstr_a(path), wine_dbgstr_a(ext)); if (!path || !ext || *(PathFindExtensionA(path))) return FALSE; len = strlen(path); if (len + strlen(ext) >= MAX_PATH) return FALSE; strcpy(path + len, ext); return TRUE; } BOOL WINAPI PathAddExtensionW(WCHAR *path, const WCHAR *ext) { unsigned int len; TRACE("%s, %s\n", wine_dbgstr_w(path), wine_dbgstr_w(ext)); if (!path || !ext || *(PathFindExtensionW(path))) return FALSE; len = strlenW(path); if (len + strlenW(ext) >= MAX_PATH) return FALSE; strcpyW(path + len, ext); return TRUE; } BOOL WINAPI PathCanonicalizeW(WCHAR *buffer, const WCHAR *path) { const WCHAR *src = path; WCHAR *dst = buffer; TRACE("%p, %s\n", buffer, wine_dbgstr_w(path)); if (dst) *dst = '\0'; if (!dst || !path) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } if (!*path) { *buffer++ = '\\'; *buffer = '\0'; return TRUE; } /* Copy path root */ if (*src == '\\') { *dst++ = *src++; } else if (*src && src[1] == ':') { /* X:\ */ *dst++ = *src++; *dst++ = *src++; if (*src == '\\') *dst++ = *src++; } /* Canonicalize the rest of the path */ while (*src) { if (*src == '.') { if (src[1] == '\\' && (src == path || src[-1] == '\\' || src[-1] == ':')) { src += 2; /* Skip .\ */ } else if (src[1] == '.' && (dst == buffer || dst[-1] == '\\')) { /* \.. backs up a directory, over the root if it has no \ following X:. * .. is ignored if it would remove a UNC server name or initial \\ */ if (dst != buffer) { *dst = '\0'; /* Allow PathIsUNCServerShareA test on lpszBuf */ if (dst > buffer + 1 && dst[-1] == '\\' && (dst[-2] != '\\' || dst > buffer + 2)) { if (dst[-2] == ':' && (dst > buffer + 3 || dst[-3] == ':')) { dst -= 2; while (dst > buffer && *dst != '\\') dst--; if (*dst == '\\') dst++; /* Reset to last '\' */ else dst = buffer; /* Start path again from new root */ } else if (dst[-2] != ':' && !PathIsUNCServerShareW(buffer)) dst -= 2; } while (dst > buffer && *dst != '\\') dst--; if (dst == buffer) { *dst++ = '\\'; src++; } } src += 2; /* Skip .. in src path */ } else *dst++ = *src++; } else *dst++ = *src++; } /* Append \ to naked drive specs */ if (dst - buffer == 2 && dst[-1] == ':') *dst++ = '\\'; *dst++ = '\0'; return TRUE; } BOOL WINAPI PathCanonicalizeA(char *buffer, const char *path) { WCHAR pathW[MAX_PATH], bufferW[MAX_PATH]; BOOL ret; int len; TRACE("%p, %s\n", buffer, wine_dbgstr_a(path)); if (buffer) *buffer = '\0'; if (!buffer || !path) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } len = MultiByteToWideChar(CP_ACP, 0, path, -1, pathW, ARRAY_SIZE(pathW)); if (!len) return FALSE; ret = PathCanonicalizeW(bufferW, pathW); WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, 0, 0); return ret; } WCHAR * WINAPI PathCombineW(WCHAR *dst, const WCHAR *dir, const WCHAR *file) { BOOL use_both = FALSE, strip = FALSE; WCHAR tmp[MAX_PATH]; TRACE("%p, %s, %s\n", dst, wine_dbgstr_w(dir), wine_dbgstr_w(file)); /* Invalid parameters */ if (!dst) return NULL; if (!dir && !file) { dst[0] = 0; return NULL; } if ((!file || !*file) && dir) { /* Use dir only */ lstrcpynW(tmp, dir, ARRAY_SIZE(tmp)); } else if (!dir || !*dir || !PathIsRelativeW(file)) { if (!dir || !*dir || *file != '\\' || PathIsUNCW(file)) { /* Use file only */ lstrcpynW(tmp, file, ARRAY_SIZE(tmp)); } else { use_both = TRUE; strip = TRUE; } } else use_both = TRUE; if (use_both) { lstrcpynW(tmp, dir, ARRAY_SIZE(tmp)); if (strip) { PathStripToRootW(tmp); file++; /* Skip '\' */ } if (!PathAddBackslashW(tmp) || strlenW(tmp) + strlenW(file) >= MAX_PATH) { dst[0] = 0; return NULL; } strcatW(tmp, file); } PathCanonicalizeW(dst, tmp); return dst; } LPSTR WINAPI PathCombineA(char *dst, const char *dir, const char *file) { WCHAR dstW[MAX_PATH], dirW[MAX_PATH], fileW[MAX_PATH]; TRACE("%p, %s, %s\n", dst, wine_dbgstr_a(dir), wine_dbgstr_a(file)); /* Invalid parameters */ if (!dst) return NULL; dst[0] = 0; if (!dir && !file) return NULL; if (dir && !MultiByteToWideChar(CP_ACP, 0, dir, -1, dirW, ARRAY_SIZE(dirW))) return NULL; if (file && !MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, ARRAY_SIZE(fileW))) return NULL; if (PathCombineW(dstW, dir ? dirW : NULL, file ? fileW : NULL)) if (WideCharToMultiByte(CP_ACP, 0, dstW, -1, dst, MAX_PATH, 0, 0)) return dst; return NULL; } BOOL WINAPI PathAppendA(char *path, const char *append) { TRACE("%s, %s\n", wine_dbgstr_a(path), wine_dbgstr_a(append)); if (path && append) { if (!PathIsUNCA(append)) while (*append == '\\') append++; if (PathCombineA(path, path, append)) return TRUE; } return FALSE; } BOOL WINAPI PathAppendW(WCHAR *path, const WCHAR *append) { TRACE("%s, %s\n", wine_dbgstr_w(path), wine_dbgstr_w(append)); if (path && append) { if (!PathIsUNCW(append)) while (*append == '\\') append++; if (PathCombineW(path, path, append)) return TRUE; } return FALSE; } int WINAPI PathCommonPrefixA(const char *file1, const char *file2, char *path) { const char *iter1 = file1; const char *iter2 = file2; unsigned int len = 0; TRACE("%s, %s, %p.\n", wine_dbgstr_a(file1), wine_dbgstr_a(file2), path); if (path) *path = '\0'; if (!file1 || !file2) return 0; /* Handle roots first */ if (PathIsUNCA(file1)) { if (!PathIsUNCA(file2)) return 0; iter1 += 2; iter2 += 2; } else if (PathIsUNCA(file2)) return 0; for (;;) { /* Update len */ if ((!*iter1 || *iter1 == '\\') && (!*iter2 || *iter2 == '\\')) len = iter1 - file1; /* Common to this point */ if (!*iter1 || (tolower(*iter1) != tolower(*iter2))) break; /* Strings differ at this point */ iter1++; iter2++; } if (len == 2) len++; /* Feature/Bug compatible with Win32 */ if (len && path) { memcpy(path, file1, len); path[len] = '\0'; } return len; } int WINAPI PathCommonPrefixW(const WCHAR *file1, const WCHAR *file2, WCHAR *path) { const WCHAR *iter1 = file1; const WCHAR *iter2 = file2; unsigned int len = 0; TRACE("%s, %s, %p\n", wine_dbgstr_w(file1), wine_dbgstr_w(file2), path); if (path) *path = '\0'; if (!file1 || !file2) return 0; /* Handle roots first */ if (PathIsUNCW(file1)) { if (!PathIsUNCW(file2)) return 0; iter1 += 2; iter2 += 2; } else if (PathIsUNCW(file2)) return 0; for (;;) { /* Update len */ if ((!*iter1 || *iter1 == '\\') && (!*iter2 || *iter2 == '\\')) len = iter1 - file1; /* Common to this point */ if (!*iter1 || (tolowerW(*iter1) != tolowerW(*iter2))) break; /* Strings differ at this point */ iter1++; iter2++; } if (len == 2) len++; /* Feature/Bug compatible with Win32 */ if (len && path) { memcpy(path, file1, len * sizeof(WCHAR)); path[len] = '\0'; } return len; } BOOL WINAPI PathIsPrefixA(const char *prefix, const char *path) { TRACE("%s, %s\n", wine_dbgstr_a(prefix), wine_dbgstr_a(path)); return prefix && path && PathCommonPrefixA(path, prefix, NULL) == (int)strlen(prefix); } BOOL WINAPI PathIsPrefixW(const WCHAR *prefix, const WCHAR *path) { TRACE("%s, %s\n", wine_dbgstr_w(prefix), wine_dbgstr_w(path)); return prefix && path && PathCommonPrefixW(path, prefix, NULL) == (int)strlenW(prefix); } char * WINAPI PathFindFileNameA(const char *path) { const char *last_slash = path; TRACE("%s\n", wine_dbgstr_a(path)); while (path && *path) { if ((*path == '\\' || *path == '/' || *path == ':') && path[1] && path[1] != '\\' && path[1] != '/') last_slash = path + 1; path = char_next(path); } return (char *)last_slash; } WCHAR * WINAPI PathFindFileNameW(const WCHAR *path) { const WCHAR *last_slash = path; TRACE("%s\n", wine_dbgstr_w(path)); while (path && *path) { if ((*path == '\\' || *path == '/' || *path == ':') && path[1] && path[1] != '\\' && path[1] != '/') last_slash = path + 1; path++; } return (WCHAR *)last_slash; } char * WINAPI PathGetArgsA(const char *path) { BOOL seen_quote = FALSE; TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return NULL; while (*path) { if (*path == ' ' && !seen_quote) return (char *)path + 1; if (*path == '"') seen_quote = !seen_quote; path = char_next(path); } return (char *)path; } WCHAR * WINAPI PathGetArgsW(const WCHAR *path) { BOOL seen_quote = FALSE; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return NULL; while (*path) { if (*path == ' ' && !seen_quote) return (WCHAR *)path + 1; if (*path == '"') seen_quote = !seen_quote; path++; } return (WCHAR *)path; } UINT WINAPI PathGetCharTypeW(WCHAR ch) { UINT flags = 0; TRACE("%#x\n", ch); if (!ch || ch < ' ' || ch == '<' || ch == '>' || ch == '"' || ch == '|' || ch == '/') flags = GCT_INVALID; /* Invalid */ else if (ch == '*' || ch == '?') flags = GCT_WILD; /* Wildchars */ else if (ch == '\\' || ch == ':') return GCT_SEPARATOR; /* Path separators */ else { if (ch < 126) { if (((ch & 0x1) && ch != ';') || !ch || isalnum(ch) || ch == '$' || ch == '&' || ch == '(' || ch == '.' || ch == '@' || ch == '^' || ch == '\'' || ch == 130 || ch == '`') { flags |= GCT_SHORTCHAR; /* All these are valid for DOS */ } } else flags |= GCT_SHORTCHAR; /* Bug compatible with win32 */ flags |= GCT_LFNCHAR; /* Valid for long file names */ } return flags; } UINT WINAPI PathGetCharTypeA(UCHAR ch) { return PathGetCharTypeW(ch); } int WINAPI PathGetDriveNumberA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (path && !IsDBCSLeadByte(*path) && path[1] == ':' && tolower(*path) >= 'a' && tolower(*path) <= 'z') return tolower(*path) - 'a'; return -1; } int WINAPI PathGetDriveNumberW(const WCHAR *path) { static const WCHAR nt_prefixW[] = {'\\','\\','?','\\'}; WCHAR drive; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return -1; if (!strncmpW(path, nt_prefixW, 4)) path += 4; drive = tolowerW(path[0]); if (drive < 'a' || drive > 'z' || path[1] != ':') return -1; return drive - 'a'; } BOOL WINAPI PathIsFileSpecA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return FALSE; while (*path) { if (*path == '\\' || *path == ':') return FALSE; path = char_next(path); } return TRUE; } BOOL WINAPI PathIsFileSpecW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return FALSE; while (*path) { if (*path == '\\' || *path == ':') return FALSE; path++; } return TRUE; } BOOL WINAPI PathIsUNCServerA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!(path && path[0] == '\\' && path[1] == '\\')) return FALSE; while (*path) { if (*path == '\\') return FALSE; path = char_next(path); } return TRUE; } BOOL WINAPI PathIsUNCServerW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!(path && path[0] == '\\' && path[1] == '\\')) return FALSE; return !strchrW(path + 2, '\\'); } void WINAPI PathRemoveBlanksA(char *path) { char *start; TRACE("%s\n", wine_dbgstr_a(path)); if (!path || !*path) return; start = path; while (*path == ' ') path = char_next(path); while (*path) *start++ = *path++; if (start != path) while (start[-1] == ' ') start--; *start = '\0'; } void WINAPI PathRemoveBlanksW(WCHAR *path) { WCHAR *start = path; TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return; while (*path == ' ') path++; while (*path) *start++ = *path++; if (start != path) while (start[-1] == ' ') start--; *start = '\0'; } void WINAPI PathRemoveExtensionA(char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return; path = PathFindExtensionA(path); if (path && !*path) *path = '\0'; } void WINAPI PathRemoveExtensionW(WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return; path = PathFindExtensionW(path); if (path && !*path) *path = '\0'; } BOOL WINAPI PathRenameExtensionA(char *path, const char *ext) { char *extension; TRACE("%s, %s\n", wine_dbgstr_a(path), wine_dbgstr_a(ext)); extension = PathFindExtensionA(path); if (!extension || (extension - path + strlen(ext) >= MAX_PATH)) return FALSE; strcpy(extension, ext); return TRUE; } BOOL WINAPI PathRenameExtensionW(WCHAR *path, const WCHAR *ext) { WCHAR *extension; TRACE("%s, %s\n", wine_dbgstr_w(path), wine_dbgstr_w(ext)); extension = PathFindExtensionW(path); if (!extension || (extension - path + strlenW(ext) >= MAX_PATH)) return FALSE; strcpyW(extension, ext); return TRUE; } void WINAPI PathUnquoteSpacesA(char *path) { unsigned int len; TRACE("%s\n", wine_dbgstr_a(path)); if (!path || *path != '"') return; len = strlen(path) - 1; if (path[len] == '"') { path[len] = '\0'; for (; *path; path++) *path = path[1]; } } void WINAPI PathUnquoteSpacesW(WCHAR *path) { unsigned int len; TRACE("%s\n", wine_dbgstr_w(path)); if (!path || *path != '"') return; len = strlenW(path) - 1; if (path[len] == '"') { path[len] = '\0'; for (; *path; path++) *path = path[1]; } } char * WINAPI PathRemoveBackslashA(char *path) { char *ptr; TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return NULL; ptr = char_prev(path, path + strlen(path)); if (!PathIsRootA(path) && *ptr == '\\') *ptr = '\0'; return ptr; } WCHAR * WINAPI PathRemoveBackslashW(WCHAR *path) { WCHAR *ptr; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return NULL; ptr = path + strlenW(path); if (ptr > path) ptr--; if (!PathIsRootW(path) && *ptr == '\\') *ptr = '\0'; return ptr; } BOOL WINAPI PathIsLFNFileSpecA(const char *path) { unsigned int name_len = 0, ext_len = 0; TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return FALSE; while (*path) { if (*path == ' ') return TRUE; /* DOS names cannot have spaces */ if (*path == '.') { if (ext_len) return TRUE; /* DOS names have only one dot */ ext_len = 1; } else if (ext_len) { ext_len++; if (ext_len > 4) return TRUE; /* DOS extensions are <= 3 chars*/ } else { name_len++; if (name_len > 8) return TRUE; /* DOS names are <= 8 chars */ } path = char_next(path); } return FALSE; /* Valid DOS path */ } BOOL WINAPI PathIsLFNFileSpecW(const WCHAR *path) { unsigned int name_len = 0, ext_len = 0; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return FALSE; while (*path) { if (*path == ' ') return TRUE; /* DOS names cannot have spaces */ if (*path == '.') { if (ext_len) return TRUE; /* DOS names have only one dot */ ext_len = 1; } else if (ext_len) { ext_len++; if (ext_len > 4) return TRUE; /* DOS extensions are <= 3 chars*/ } else { name_len++; if (name_len > 8) return TRUE; /* DOS names are <= 8 chars */ } path++; } return FALSE; /* Valid DOS path */ } #define PATH_CHAR_CLASS_LETTER 0x00000001 #define PATH_CHAR_CLASS_ASTERIX 0x00000002 #define PATH_CHAR_CLASS_DOT 0x00000004 #define PATH_CHAR_CLASS_BACKSLASH 0x00000008 #define PATH_CHAR_CLASS_COLON 0x00000010 #define PATH_CHAR_CLASS_SEMICOLON 0x00000020 #define PATH_CHAR_CLASS_COMMA 0x00000040 #define PATH_CHAR_CLASS_SPACE 0x00000080 #define PATH_CHAR_CLASS_OTHER_VALID 0x00000100 #define PATH_CHAR_CLASS_DOUBLEQUOTE 0x00000200 #define PATH_CHAR_CLASS_INVALID 0x00000000 #define PATH_CHAR_CLASS_ANY 0xffffffff static const DWORD path_charclass[] = { /* 0x00 */ PATH_CHAR_CLASS_INVALID, /* 0x01 */ PATH_CHAR_CLASS_INVALID, /* 0x02 */ PATH_CHAR_CLASS_INVALID, /* 0x03 */ PATH_CHAR_CLASS_INVALID, /* 0x04 */ PATH_CHAR_CLASS_INVALID, /* 0x05 */ PATH_CHAR_CLASS_INVALID, /* 0x06 */ PATH_CHAR_CLASS_INVALID, /* 0x07 */ PATH_CHAR_CLASS_INVALID, /* 0x08 */ PATH_CHAR_CLASS_INVALID, /* 0x09 */ PATH_CHAR_CLASS_INVALID, /* 0x0a */ PATH_CHAR_CLASS_INVALID, /* 0x0b */ PATH_CHAR_CLASS_INVALID, /* 0x0c */ PATH_CHAR_CLASS_INVALID, /* 0x0d */ PATH_CHAR_CLASS_INVALID, /* 0x0e */ PATH_CHAR_CLASS_INVALID, /* 0x0f */ PATH_CHAR_CLASS_INVALID, /* 0x10 */ PATH_CHAR_CLASS_INVALID, /* 0x11 */ PATH_CHAR_CLASS_INVALID, /* 0x12 */ PATH_CHAR_CLASS_INVALID, /* 0x13 */ PATH_CHAR_CLASS_INVALID, /* 0x14 */ PATH_CHAR_CLASS_INVALID, /* 0x15 */ PATH_CHAR_CLASS_INVALID, /* 0x16 */ PATH_CHAR_CLASS_INVALID, /* 0x17 */ PATH_CHAR_CLASS_INVALID, /* 0x18 */ PATH_CHAR_CLASS_INVALID, /* 0x19 */ PATH_CHAR_CLASS_INVALID, /* 0x1a */ PATH_CHAR_CLASS_INVALID, /* 0x1b */ PATH_CHAR_CLASS_INVALID, /* 0x1c */ PATH_CHAR_CLASS_INVALID, /* 0x1d */ PATH_CHAR_CLASS_INVALID, /* 0x1e */ PATH_CHAR_CLASS_INVALID, /* 0x1f */ PATH_CHAR_CLASS_INVALID, /* ' ' */ PATH_CHAR_CLASS_SPACE, /* '!' */ PATH_CHAR_CLASS_OTHER_VALID, /* '"' */ PATH_CHAR_CLASS_DOUBLEQUOTE, /* '#' */ PATH_CHAR_CLASS_OTHER_VALID, /* '$' */ PATH_CHAR_CLASS_OTHER_VALID, /* '%' */ PATH_CHAR_CLASS_OTHER_VALID, /* '&' */ PATH_CHAR_CLASS_OTHER_VALID, /* '\'' */ PATH_CHAR_CLASS_OTHER_VALID, /* '(' */ PATH_CHAR_CLASS_OTHER_VALID, /* ')' */ PATH_CHAR_CLASS_OTHER_VALID, /* '*' */ PATH_CHAR_CLASS_ASTERIX, /* '+' */ PATH_CHAR_CLASS_OTHER_VALID, /* ',' */ PATH_CHAR_CLASS_COMMA, /* '-' */ PATH_CHAR_CLASS_OTHER_VALID, /* '.' */ PATH_CHAR_CLASS_DOT, /* '/' */ PATH_CHAR_CLASS_INVALID, /* '0' */ PATH_CHAR_CLASS_OTHER_VALID, /* '1' */ PATH_CHAR_CLASS_OTHER_VALID, /* '2' */ PATH_CHAR_CLASS_OTHER_VALID, /* '3' */ PATH_CHAR_CLASS_OTHER_VALID, /* '4' */ PATH_CHAR_CLASS_OTHER_VALID, /* '5' */ PATH_CHAR_CLASS_OTHER_VALID, /* '6' */ PATH_CHAR_CLASS_OTHER_VALID, /* '7' */ PATH_CHAR_CLASS_OTHER_VALID, /* '8' */ PATH_CHAR_CLASS_OTHER_VALID, /* '9' */ PATH_CHAR_CLASS_OTHER_VALID, /* ':' */ PATH_CHAR_CLASS_COLON, /* ';' */ PATH_CHAR_CLASS_SEMICOLON, /* '<' */ PATH_CHAR_CLASS_INVALID, /* '=' */ PATH_CHAR_CLASS_OTHER_VALID, /* '>' */ PATH_CHAR_CLASS_INVALID, /* '?' */ PATH_CHAR_CLASS_LETTER, /* '@' */ PATH_CHAR_CLASS_OTHER_VALID, /* 'A' */ PATH_CHAR_CLASS_ANY, /* 'B' */ PATH_CHAR_CLASS_ANY, /* 'C' */ PATH_CHAR_CLASS_ANY, /* 'D' */ PATH_CHAR_CLASS_ANY, /* 'E' */ PATH_CHAR_CLASS_ANY, /* 'F' */ PATH_CHAR_CLASS_ANY, /* 'G' */ PATH_CHAR_CLASS_ANY, /* 'H' */ PATH_CHAR_CLASS_ANY, /* 'I' */ PATH_CHAR_CLASS_ANY, /* 'J' */ PATH_CHAR_CLASS_ANY, /* 'K' */ PATH_CHAR_CLASS_ANY, /* 'L' */ PATH_CHAR_CLASS_ANY, /* 'M' */ PATH_CHAR_CLASS_ANY, /* 'N' */ PATH_CHAR_CLASS_ANY, /* 'O' */ PATH_CHAR_CLASS_ANY, /* 'P' */ PATH_CHAR_CLASS_ANY, /* 'Q' */ PATH_CHAR_CLASS_ANY, /* 'R' */ PATH_CHAR_CLASS_ANY, /* 'S' */ PATH_CHAR_CLASS_ANY, /* 'T' */ PATH_CHAR_CLASS_ANY, /* 'U' */ PATH_CHAR_CLASS_ANY, /* 'V' */ PATH_CHAR_CLASS_ANY, /* 'W' */ PATH_CHAR_CLASS_ANY, /* 'X' */ PATH_CHAR_CLASS_ANY, /* 'Y' */ PATH_CHAR_CLASS_ANY, /* 'Z' */ PATH_CHAR_CLASS_ANY, /* '[' */ PATH_CHAR_CLASS_OTHER_VALID, /* '\\' */ PATH_CHAR_CLASS_BACKSLASH, /* ']' */ PATH_CHAR_CLASS_OTHER_VALID, /* '^' */ PATH_CHAR_CLASS_OTHER_VALID, /* '_' */ PATH_CHAR_CLASS_OTHER_VALID, /* '`' */ PATH_CHAR_CLASS_OTHER_VALID, /* 'a' */ PATH_CHAR_CLASS_ANY, /* 'b' */ PATH_CHAR_CLASS_ANY, /* 'c' */ PATH_CHAR_CLASS_ANY, /* 'd' */ PATH_CHAR_CLASS_ANY, /* 'e' */ PATH_CHAR_CLASS_ANY, /* 'f' */ PATH_CHAR_CLASS_ANY, /* 'g' */ PATH_CHAR_CLASS_ANY, /* 'h' */ PATH_CHAR_CLASS_ANY, /* 'i' */ PATH_CHAR_CLASS_ANY, /* 'j' */ PATH_CHAR_CLASS_ANY, /* 'k' */ PATH_CHAR_CLASS_ANY, /* 'l' */ PATH_CHAR_CLASS_ANY, /* 'm' */ PATH_CHAR_CLASS_ANY, /* 'n' */ PATH_CHAR_CLASS_ANY, /* 'o' */ PATH_CHAR_CLASS_ANY, /* 'p' */ PATH_CHAR_CLASS_ANY, /* 'q' */ PATH_CHAR_CLASS_ANY, /* 'r' */ PATH_CHAR_CLASS_ANY, /* 's' */ PATH_CHAR_CLASS_ANY, /* 't' */ PATH_CHAR_CLASS_ANY, /* 'u' */ PATH_CHAR_CLASS_ANY, /* 'v' */ PATH_CHAR_CLASS_ANY, /* 'w' */ PATH_CHAR_CLASS_ANY, /* 'x' */ PATH_CHAR_CLASS_ANY, /* 'y' */ PATH_CHAR_CLASS_ANY, /* 'z' */ PATH_CHAR_CLASS_ANY, /* '{' */ PATH_CHAR_CLASS_OTHER_VALID, /* '|' */ PATH_CHAR_CLASS_INVALID, /* '}' */ PATH_CHAR_CLASS_OTHER_VALID, /* '~' */ PATH_CHAR_CLASS_OTHER_VALID }; BOOL WINAPI PathIsValidCharA(char c, DWORD class) { if ((unsigned)c > 0x7e) return class & PATH_CHAR_CLASS_OTHER_VALID; return class & path_charclass[(unsigned)c]; } BOOL WINAPI PathIsValidCharW(WCHAR c, DWORD class) { if (c > 0x7e) return class & PATH_CHAR_CLASS_OTHER_VALID; return class & path_charclass[c]; } char * WINAPI PathFindNextComponentA(const char *path) { char *slash; TRACE("%s\n", wine_dbgstr_a(path)); if (!path || !*path) return NULL; if ((slash = StrChrA(path, '\\'))) { if (slash[1] == '\\') slash++; return slash + 1; } return (char *)path + strlen(path); } WCHAR * WINAPI PathFindNextComponentW(const WCHAR *path) { WCHAR *slash; TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return NULL; if ((slash = StrChrW(path, '\\'))) { if (slash[1] == '\\') slash++; return slash + 1; } return (WCHAR *)path + strlenW(path); } char * WINAPI PathSkipRootA(const char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (!path || !*path) return NULL; if (*path == '\\' && path[1] == '\\') { /* Network share: skip share server and mount point */ path += 2; if ((path = StrChrA(path, '\\')) && (path = StrChrA(path + 1, '\\'))) path++; return (char *)path; } if (IsDBCSLeadByte(*path)) return NULL; /* Check x:\ */ if (path[0] && path[1] == ':' && path[2] == '\\') return (char *)path + 3; return NULL; } WCHAR * WINAPI PathSkipRootW(const WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (!path || !*path) return NULL; if (*path == '\\' && path[1] == '\\') { /* Network share: skip share server and mount point */ path += 2; if ((path = StrChrW(path, '\\')) && (path = StrChrW(path + 1, '\\'))) path++; return (WCHAR *)path; } /* Check x:\ */ if (path[0] && path[1] == ':' && path[2] == '\\') return (WCHAR *)path + 3; return NULL; } void WINAPI PathStripPathA(char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (path) { char *filename = PathFindFileNameA(path); if (filename != path) RtlMoveMemory(path, filename, strlen(filename) + 1); } } void WINAPI PathStripPathW(WCHAR *path) { WCHAR *filename; TRACE("%s\n", wine_dbgstr_w(path)); filename = PathFindFileNameW(path); if (filename != path) RtlMoveMemory(path, filename, (strlenW(filename) + 1) * sizeof(WCHAR)); } BOOL WINAPI PathSearchAndQualifyA(const char *path, char *buffer, UINT length) { TRACE("%s, %p, %u\n", wine_dbgstr_a(path), buffer, length); if (SearchPathA(NULL, path, NULL, length, buffer, NULL)) return TRUE; return !!GetFullPathNameA(path, length, buffer, NULL); } BOOL WINAPI PathSearchAndQualifyW(const WCHAR *path, WCHAR *buffer, UINT length) { TRACE("%s, %p, %u\n", wine_dbgstr_w(path), buffer, length); if (SearchPathW(NULL, path, NULL, length, buffer, NULL)) return TRUE; return !!GetFullPathNameW(path, length, buffer, NULL); } BOOL WINAPI PathRelativePathToA(char *path, const char *from, DWORD attributes_from, const char *to, DWORD attributes_to) { WCHAR pathW[MAX_PATH], fromW[MAX_PATH], toW[MAX_PATH]; BOOL ret; TRACE("%p, %s, %#x, %s, %#x\n", path, wine_dbgstr_a(from), attributes_from, wine_dbgstr_a(to), attributes_to); if (!path || !from || !to) return FALSE; MultiByteToWideChar(CP_ACP, 0, from, -1, fromW, ARRAY_SIZE(fromW)); MultiByteToWideChar(CP_ACP, 0, to, -1, toW, ARRAY_SIZE(toW)); ret = PathRelativePathToW(pathW, fromW, attributes_from, toW, attributes_to); WideCharToMultiByte(CP_ACP, 0, pathW, -1, path, MAX_PATH, 0, 0); return ret; } BOOL WINAPI PathRelativePathToW(WCHAR *path, const WCHAR *from, DWORD attributes_from, const WCHAR *to, DWORD attributes_to) { static const WCHAR szPrevDirSlash[] = { '.', '.', '\\', '\0' }; static const WCHAR szPrevDir[] = { '.', '.', '\0' }; WCHAR fromW[MAX_PATH], toW[MAX_PATH]; DWORD len; TRACE("%p, %s, %#x, %s, %#x\n", path, wine_dbgstr_w(from), attributes_from, wine_dbgstr_w(to), attributes_to); if (!path || !from || !to) return FALSE; *path = '\0'; lstrcpynW(fromW, from, ARRAY_SIZE(fromW)); lstrcpynW(toW, to, ARRAY_SIZE(toW)); if (!(attributes_from & FILE_ATTRIBUTE_DIRECTORY)) PathRemoveFileSpecW(fromW); if (!(attributes_to & FILE_ATTRIBUTE_DIRECTORY)) PathRemoveFileSpecW(toW); /* Paths can only be relative if they have a common root */ if (!(len = PathCommonPrefixW(fromW, toW, 0))) return FALSE; /* Strip off 'from' components to the root, by adding "..\" */ from = fromW + len; if (!*from) { path[0] = '.'; path[1] = '\0'; } if (*from == '\\') from++; while (*from) { from = PathFindNextComponentW(from); strcatW(path, *from ? szPrevDirSlash : szPrevDir); } /* From the root add the components of 'to' */ to += len; /* We check to[-1] to avoid skipping end of string. See the notes for this function. */ if (*to && to[-1]) { if (*to != '\\') to--; len = strlenW(path); if (len + strlenW(to) >= MAX_PATH) { *path = '\0'; return FALSE; } strcpyW(path + len, to); } return TRUE; } static BOOL path_match_maskA(const char *name, const char *mask) { while (*name && *mask && *mask != ';') { if (*mask == '*') { do { if (path_match_maskA(name, mask + 1)) return TRUE; /* try substrings */ } while (*name++); return FALSE; } if (toupper(*mask) != toupper(*name) && *mask != '?') return FALSE; name = CharNextA(name); mask = CharNextA(mask); } if (!*name) { while (*mask == '*') mask++; if (!*mask || *mask == ';') return TRUE; } return FALSE; } BOOL WINAPI PathMatchSpecA(const char *path, const char *mask) { TRACE("%s, %s\n", wine_dbgstr_a(path), wine_dbgstr_a(mask)); if (!lstrcmpA(mask, "*.*")) return TRUE; /* Matches every path */ while (*mask) { while (*mask == ' ') mask++; /* Eat leading spaces */ if (path_match_maskA(path, mask)) return TRUE; /* Matches the current mask */ while (*mask && *mask != ';') mask = CharNextA(mask); /* masks separated by ';' */ if (*mask == ';') mask++; } return FALSE; } static BOOL path_match_maskW(const WCHAR *name, const WCHAR *mask) { while (*name && *mask && *mask != ';') { if (*mask == '*') { do { if (path_match_maskW(name, mask + 1)) return TRUE; /* try substrings */ } while (*name++); return FALSE; } if (toupperW(*mask) != toupperW(*name) && *mask != '?') return FALSE; name++; mask++; } if (!*name) { while (*mask == '*') mask++; if (!*mask || *mask == ';') return TRUE; } return FALSE; } BOOL WINAPI PathMatchSpecW(const WCHAR *path, const WCHAR *mask) { static const WCHAR maskallW[] = {'*','.','*',0}; TRACE("%s, %s\n", wine_dbgstr_w(path), wine_dbgstr_w(mask)); if (!lstrcmpW(mask, maskallW)) return TRUE; /* Matches every path */ while (*mask) { while (*mask == ' ') mask++; /* Eat leading spaces */ if (path_match_maskW(path, mask)) return TRUE; /* Matches the current path */ while (*mask && *mask != ';') mask++; /* masks separated by ';' */ if (*mask == ';') mask++; } return FALSE; } void WINAPI PathQuoteSpacesA(char *path) { TRACE("%s\n", wine_dbgstr_a(path)); if (path && StrChrA(path, ' ')) { size_t len = strlen(path) + 1; if (len + 2 < MAX_PATH) { memmove(path + 1, path, len); path[0] = '"'; path[len] = '"'; path[len + 1] = '\0'; } } } void WINAPI PathQuoteSpacesW(WCHAR *path) { TRACE("%s\n", wine_dbgstr_w(path)); if (path && StrChrW(path, ' ')) { int len = strlenW(path) + 1; if (len + 2 < MAX_PATH) { memmove(path + 1, path, len * sizeof(WCHAR)); path[0] = '"'; path[len] = '"'; path[len + 1] = '\0'; } } } BOOL WINAPI PathIsSameRootA(const char *path1, const char *path2) { const char *start; int len; TRACE("%s, %s\n", wine_dbgstr_a(path1), wine_dbgstr_a(path2)); if (!path1 || !path2 || !(start = PathSkipRootA(path1))) return FALSE; len = PathCommonPrefixA(path1, path2, NULL) + 1; return start - path1 <= len; } BOOL WINAPI PathIsSameRootW(const WCHAR *path1, const WCHAR *path2) { const WCHAR *start; int len; TRACE("%s, %s\n", wine_dbgstr_w(path1), wine_dbgstr_w(path2)); if (!path1 || !path2 || !(start = PathSkipRootW(path1))) return FALSE; len = PathCommonPrefixW(path1, path2, NULL) + 1; return start - path1 <= len; } BOOL WINAPI PathFileExistsA(const char *path) { UINT prev_mode; DWORD attrs; TRACE("%s\n", wine_dbgstr_a(path)); if (!path) return FALSE; /* Prevent a dialog box if path is on a disk that has been ejected. */ prev_mode = SetErrorMode(SEM_FAILCRITICALERRORS); attrs = GetFileAttributesA(path); SetErrorMode(prev_mode); return attrs != INVALID_FILE_ATTRIBUTES; } BOOL WINAPI PathFileExistsW(const WCHAR *path) { UINT prev_mode; DWORD attrs; TRACE("%s\n", wine_dbgstr_w(path)); if (!path) return FALSE; prev_mode = SetErrorMode(SEM_FAILCRITICALERRORS); attrs = GetFileAttributesW(path); SetErrorMode(prev_mode); return attrs != INVALID_FILE_ATTRIBUTES; }