| |
| /* |
| * Copyright (C) Igor Sysoev |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| |
| |
| #define NGX_UTF16_BUFLEN 256 |
| |
| static u_short *ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t len); |
| |
| |
| /* FILE_FLAG_BACKUP_SEMANTICS allows to obtain a handle to a directory */ |
| |
| ngx_fd_t |
| ngx_open_file(u_char *name, u_long mode, u_long create, u_long access) |
| { |
| u_short *u; |
| ngx_fd_t fd; |
| u_short utf16[NGX_UTF16_BUFLEN]; |
| |
| u = ngx_utf8_to_utf16(utf16, name, NGX_UTF16_BUFLEN); |
| |
| if (u == NULL) { |
| return INVALID_HANDLE_VALUE; |
| } |
| |
| fd = CreateFileW(u, mode, |
| FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, |
| NULL, create, FILE_FLAG_BACKUP_SEMANTICS, NULL); |
| |
| if (u != utf16) { |
| ngx_free(u); |
| } |
| |
| return fd; |
| } |
| |
| |
| ssize_t |
| ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) |
| { |
| long high_offset; |
| u_long n; |
| ngx_err_t err; |
| OVERLAPPED ovlp, *povlp; |
| |
| if (ngx_win32_version < NGX_WIN_NT) { |
| |
| /* |
| * under Win9X the overlapped pointer must be NULL |
| * so we have to use SetFilePointer() to set the offset |
| */ |
| |
| if (file->offset != offset) { |
| |
| /* |
| * the maximum file size on the FAT16 is 2G, but on the FAT32 |
| * the size is 4G so we have to use the high_offset |
| * because a single offset is signed value |
| */ |
| |
| high_offset = (long) (offset >> 32); |
| |
| if (SetFilePointer(file->fd, (long) offset, &high_offset, |
| FILE_BEGIN) == INVALID_SET_FILE_POINTER) |
| { |
| /* |
| * INVALID_SET_FILE_POINTER is 0xffffffff and it can be valid |
| * value for large file so we need also to check GetLastError() |
| */ |
| |
| err = ngx_errno; |
| if (err != NO_ERROR) { |
| ngx_log_error(NGX_LOG_ERR, file->log, err, |
| "SeekFilePointer() failed"); |
| return NGX_ERROR; |
| } |
| } |
| } |
| |
| povlp = NULL; |
| |
| } else { |
| ovlp.Internal = 0; |
| ovlp.InternalHigh = 0; |
| ovlp.Offset = (u_long) offset; |
| ovlp.OffsetHigh = (u_long) (offset >> 32); |
| ovlp.hEvent = NULL; |
| |
| povlp = &ovlp; |
| } |
| |
| if (ReadFile(file->fd, buf, size, &n, povlp) == 0) { |
| ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "ReadFile() failed"); |
| return NGX_ERROR; |
| } |
| |
| file->offset += n; |
| |
| return n; |
| } |
| |
| |
| ssize_t |
| ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset) |
| { |
| long high_offset; |
| u_long n; |
| ngx_err_t err; |
| OVERLAPPED ovlp, *povlp; |
| |
| if (ngx_win32_version < NGX_WIN_NT) { |
| |
| /* |
| * under Win9X the overlapped pointer must be NULL |
| * so we have to use SetFilePointer() to set the offset |
| */ |
| |
| if (file->offset != offset) { |
| |
| /* |
| * the maximum file size on the FAT16 is 2G, but on the FAT32 |
| * the size is 4G so we have to use high_offset |
| * because a single offset is signed value |
| */ |
| |
| high_offset = (long) (offset >> 32); |
| if (SetFilePointer(file->fd, (long) offset, &high_offset, |
| FILE_BEGIN) == INVALID_SET_FILE_POINTER) |
| { |
| /* |
| * INVALID_SET_FILE_POINTER is 0xffffffff and it can be valid |
| * value for large file so we need also to check GetLastError() |
| */ |
| |
| err = ngx_errno; |
| if (err != NO_ERROR) { |
| ngx_log_error(NGX_LOG_ERR, file->log, err, |
| "SeekFilePointer() failed"); |
| return NGX_ERROR; |
| } |
| } |
| } |
| |
| povlp = NULL; |
| |
| } else { |
| ovlp.Internal = 0; |
| ovlp.InternalHigh = 0; |
| ovlp.Offset = (u_long) offset; |
| ovlp.OffsetHigh = (u_long) (offset >> 32); |
| ovlp.hEvent = NULL; |
| |
| povlp = &ovlp; |
| } |
| |
| if (WriteFile(file->fd, buf, size, &n, povlp) == 0) { |
| ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "WriteFile() failed"); |
| return NGX_ERROR; |
| } |
| |
| file->offset += n; |
| |
| return n; |
| } |
| |
| |
| ssize_t |
| ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *cl, off_t offset, |
| ngx_pool_t *pool) |
| { |
| u_char *buf, *prev; |
| size_t size; |
| ssize_t total, n; |
| |
| total = 0; |
| |
| while (cl) { |
| buf = cl->buf->pos; |
| prev = buf; |
| size = 0; |
| |
| /* coalesce the neighbouring bufs */ |
| |
| while (cl && prev == cl->buf->pos) { |
| size += cl->buf->last - cl->buf->pos; |
| prev = cl->buf->last; |
| cl = cl->next; |
| } |
| |
| n = ngx_write_file(file, buf, size, offset); |
| |
| if (n == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| total += n; |
| offset += n; |
| } |
| |
| return total; |
| } |
| |
| |
| ssize_t |
| ngx_read_fd(ngx_fd_t fd, void *buf, size_t size) |
| { |
| u_long n; |
| |
| if (ReadFile(fd, buf, size, &n, NULL) != 0) { |
| return (size_t) n; |
| } |
| |
| return -1; |
| } |
| |
| |
| ssize_t |
| ngx_write_fd(ngx_fd_t fd, void *buf, size_t size) |
| { |
| u_long n; |
| |
| if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
| return (size_t) n; |
| } |
| |
| return -1; |
| } |
| |
| |
| ssize_t |
| ngx_write_console(ngx_fd_t fd, void *buf, size_t size) |
| { |
| u_long n; |
| |
| (void) CharToOemBuff(buf, buf, size); |
| |
| if (WriteFile(fd, buf, size, &n, NULL) != 0) { |
| return (size_t) n; |
| } |
| |
| return -1; |
| } |
| |
| |
| ngx_int_t |
| ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log) |
| { |
| u_char *name; |
| ngx_int_t rc; |
| ngx_uint_t collision; |
| ngx_atomic_uint_t num; |
| |
| name = ngx_alloc(to->len + 1 + 10 + 1 + sizeof("DELETE"), log); |
| if (name == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(name, to->data, to->len); |
| |
| collision = 0; |
| |
| /* mutex_lock() (per cache or single ?) */ |
| |
| for ( ;; ) { |
| num = ngx_next_temp_number(collision); |
| |
| ngx_sprintf(name + to->len, ".%0muA.DELETE", num); |
| |
| if (MoveFile((const char *) to->data, (const char *) name) != 0) { |
| break; |
| } |
| |
| collision = 1; |
| |
| ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed"); |
| } |
| |
| if (MoveFile((const char *) from->data, (const char *) to->data) == 0) { |
| rc = NGX_ERROR; |
| |
| } else { |
| rc = NGX_OK; |
| } |
| |
| if (DeleteFile((const char *) name) == 0) { |
| ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "DeleteFile() failed"); |
| } |
| |
| if (rc == NGX_ERROR) { |
| ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed"); |
| } |
| |
| /* mutex_unlock() */ |
| |
| ngx_free(name); |
| |
| return rc; |
| } |
| |
| |
| ngx_int_t |
| ngx_file_info(u_char *file, ngx_file_info_t *sb) |
| { |
| WIN32_FILE_ATTRIBUTE_DATA fa; |
| |
| /* NT4 and Win98 */ |
| |
| if (GetFileAttributesEx((char *) file, GetFileExInfoStandard, &fa) == 0) { |
| return NGX_FILE_ERROR; |
| } |
| |
| sb->dwFileAttributes = fa.dwFileAttributes; |
| sb->ftCreationTime = fa.ftCreationTime; |
| sb->ftLastAccessTime = fa.ftLastAccessTime; |
| sb->ftLastWriteTime = fa.ftLastWriteTime; |
| sb->nFileSizeHigh = fa.nFileSizeHigh; |
| sb->nFileSizeLow = fa.nFileSizeLow; |
| |
| return ~NGX_FILE_ERROR; |
| } |
| |
| |
| ngx_int_t |
| ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s) |
| { |
| uint64_t intervals; |
| FILETIME ft; |
| |
| /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ |
| |
| intervals = s * 10000000 + 116444736000000000; |
| |
| ft.dwLowDateTime = (DWORD) intervals; |
| ft.dwHighDateTime = (DWORD) (intervals >> 32); |
| |
| if (SetFileTime(fd, NULL, NULL, &ft) != 0) { |
| return NGX_OK; |
| } |
| |
| return NGX_ERROR; |
| } |
| |
| |
| char * |
| ngx_realpath(u_char *path, u_char *resolved) |
| { |
| /* STUB */ |
| return (char *) path; |
| } |
| |
| |
| ngx_int_t |
| ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir) |
| { |
| ngx_cpystrn(name->data + name->len, NGX_DIR_MASK, NGX_DIR_MASK_LEN + 1); |
| |
| dir->dir = FindFirstFile((const char *) name->data, &dir->finddata); |
| |
| if (dir->dir == INVALID_HANDLE_VALUE) { |
| return NGX_ERROR; |
| } |
| |
| dir->valid_info = 1; |
| dir->valid_type = 1; |
| dir->ready = 1; |
| |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_read_dir(ngx_dir_t *dir) |
| { |
| if (dir->ready) { |
| dir->ready = 0; |
| return NGX_OK; |
| } |
| |
| if (FindNextFile(dir->dir, &dir->finddata) != 0) { |
| return NGX_OK; |
| } |
| |
| return NGX_ERROR; |
| } |
| |
| |
| ngx_int_t |
| ngx_open_glob(ngx_glob_t *gl) |
| { |
| u_char *p; |
| size_t len; |
| ngx_err_t err; |
| |
| gl->dir = FindFirstFile((const char *) gl->pattern, &gl->finddata); |
| |
| if (gl->dir == INVALID_HANDLE_VALUE) { |
| |
| err = ngx_errno; |
| |
| if ((err == ERROR_FILE_NOT_FOUND || err == ERROR_PATH_NOT_FOUND) |
| && gl->test) |
| { |
| gl->no_match = 1; |
| return NGX_OK; |
| } |
| |
| return NGX_ERROR; |
| } |
| |
| for (p = gl->pattern; *p; p++) { |
| if (*p == '/') { |
| gl->last = p + 1 - gl->pattern; |
| } |
| } |
| |
| len = ngx_strlen(gl->finddata.cFileName); |
| gl->name.len = gl->last + len; |
| |
| gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); |
| if (gl->name.data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(gl->name.data, gl->pattern, gl->last); |
| ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, |
| len + 1); |
| |
| gl->ready = 1; |
| |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name) |
| { |
| size_t len; |
| ngx_err_t err; |
| |
| if (gl->no_match) { |
| return NGX_DONE; |
| } |
| |
| if (gl->ready) { |
| *name = gl->name; |
| |
| gl->ready = 0; |
| return NGX_OK; |
| } |
| |
| ngx_free(gl->name.data); |
| gl->name.data = NULL; |
| |
| if (FindNextFile(gl->dir, &gl->finddata) != 0) { |
| |
| len = ngx_strlen(gl->finddata.cFileName); |
| gl->name.len = gl->last + len; |
| |
| gl->name.data = ngx_alloc(gl->name.len + 1, gl->log); |
| if (gl->name.data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(gl->name.data, gl->pattern, gl->last); |
| ngx_cpystrn(gl->name.data + gl->last, (u_char *) gl->finddata.cFileName, |
| len + 1); |
| |
| *name = gl->name; |
| |
| return NGX_OK; |
| } |
| |
| err = ngx_errno; |
| |
| if (err == NGX_ENOMOREFILES) { |
| return NGX_DONE; |
| } |
| |
| ngx_log_error(NGX_LOG_ALERT, gl->log, err, |
| "FindNextFile(%s) failed", gl->pattern); |
| |
| return NGX_ERROR; |
| } |
| |
| |
| void |
| ngx_close_glob(ngx_glob_t *gl) |
| { |
| if (gl->name.data) { |
| ngx_free(gl->name.data); |
| } |
| |
| if (gl->dir == INVALID_HANDLE_VALUE) { |
| return; |
| } |
| |
| if (FindClose(gl->dir) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, gl->log, ngx_errno, |
| "FindClose(%s) failed", gl->pattern); |
| } |
| } |
| |
| |
| ngx_int_t |
| ngx_de_info(u_char *name, ngx_dir_t *dir) |
| { |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_de_link_info(u_char *name, ngx_dir_t *dir) |
| { |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_directio_on(ngx_fd_t fd) |
| { |
| return 0; |
| } |
| |
| |
| ngx_int_t |
| ngx_directio_off(ngx_fd_t fd) |
| { |
| return 0; |
| } |
| |
| |
| size_t |
| ngx_fs_bsize(u_char *name) |
| { |
| u_char root[4]; |
| u_long sc, bs, nfree, ncl; |
| |
| if (name[2] == ':') { |
| ngx_cpystrn(root, name, 4); |
| name = root; |
| } |
| |
| if (GetDiskFreeSpace((const char *) name, &sc, &bs, &nfree, &ncl) == 0) { |
| return 512; |
| } |
| |
| return sc * bs; |
| } |
| |
| |
| static u_short * |
| ngx_utf8_to_utf16(u_short *utf16, u_char *utf8, size_t len) |
| { |
| u_char *p; |
| u_short *u, *last; |
| uint32_t n; |
| |
| p = utf8; |
| u = utf16; |
| last = utf16 + len; |
| |
| while (u < last) { |
| |
| if (*p < 0x80) { |
| *u = (u_short) *p; |
| |
| if (*p == 0) { |
| return utf16; |
| } |
| |
| u++; |
| p++; |
| |
| continue; |
| } |
| |
| n = ngx_utf8_decode(&p, 4); |
| |
| if (n > 0xffff) { |
| free(utf16); |
| ngx_set_errno(NGX_EILSEQ); |
| return NULL; |
| } |
| |
| *u++ = (u_short) n; |
| } |
| |
| /* the given buffer is not enough, allocate a new one */ |
| |
| u = malloc(((p - utf8) + ngx_strlen(p) + 1) * sizeof(u_short)); |
| if (u == NULL) { |
| return NULL; |
| } |
| |
| ngx_memcpy(u, utf16, len * 2); |
| |
| utf16 = u; |
| u += len; |
| |
| for ( ;; ) { |
| |
| if (*p < 0x80) { |
| *u = (u_short) *p; |
| |
| if (*p == 0) { |
| return utf16; |
| } |
| |
| u++; |
| p++; |
| |
| continue; |
| } |
| |
| n = ngx_utf8_decode(&p, 4); |
| |
| if (n > 0xffff) { |
| free(utf16); |
| ngx_set_errno(NGX_EILSEQ); |
| return NULL; |
| } |
| |
| *u++ = (u_short) n; |
| } |
| |
| /* unreachable */ |
| } |
