Mercurial > hg > nginx
view src/os/win32/ngx_files.c @ 485:4ebe09b07e30 release-0.1.17
nginx-0.1.17-RELEASE import
*) Change: the ngx_http_rewrite_module was rewritten from the scratch.
Now it is possible to redirect, to return the error codes, to check
the variables and referrers. The directives can be used inside
locations. The redirect directive was canceled.
*) Feature: the ngx_http_geo_module.
*) Feature: the proxy_set_x_var and fastcgi_set_var directives.
*) Bugfix: the location configuration with "=" modifier may be used in
another location.
*) Bugfix: the correct content type was set only for requests that use
small caps letters in extension.
*) Bugfix: if the proxy_pass or fastcgi_pass directives were set in the
location, and access was denied, and the error was redirected to a
static page, then the segmentation fault occurred.
*) Bugfix: if in a proxied "Location" header was a relative URL, then a
host name and a slash were added to them; the bug had appeared in
0.1.14.
*) Bugfix: the system error message was not logged on Linux.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 03 Feb 2005 19:33:37 +0000 |
parents | bbd6b0b4a2b1 |
children | 64d9afb209da |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> 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; } ngx_int_t ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_pool_t *pool) { int rc, collision; u_int num; u_char *name; if (!(name = ngx_palloc(pool, to->len + 1 + 10 + 1 + sizeof("DELETE")))) { return NGX_ERROR; } ngx_memcpy(name, to->data, to->len); collision = 0; /* mutex_lock() (per cache or single ?) */ do { num = ngx_next_temp_number(collision); ngx_sprintf(name + to->len, ".%010u.DELETE", num); if (MoveFile((const char *) to->data, (const char *) name) == 0) { collision = 1; ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "MoveFile() failed"); } } while (collision); if (MoveFile((const char *) from->data, (const char *) to->data) == 0) { rc = NGX_ERROR; } else { rc = NGX_OK; } if (ngx_win32_version >= NGX_WIN_NT) { if (DeleteFile((const char *) name) == 0) { ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "DeleteFile() failed"); } } else { /* TODO: Win9X: update the open files table */ } if (rc == NGX_ERROR) { ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "MoveFile() failed"); } /* mutex_unlock() */ return rc; } #if 0 ngx_int_t ngx_file_info(char *file, ngx_file_info_t *sb) { WIN32_FILE_ATTRIBUTE_DATA fa; /* NT4 and Win98 */ if (GetFileAttributesEx(file, GetFileExInfoStandard, &fa) == 0) { return NGX_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_OK; } #endif ngx_int_t ngx_file_info(u_char *file, ngx_file_info_t *sb) { /* Win95 */ sb->dwFileAttributes = GetFileAttributes((const char *) file); if (sb->dwFileAttributes == INVALID_FILE_ATTRIBUTES) { return NGX_ERROR; } return NGX_OK; } 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->fd); if (dir->dir == INVALID_HANDLE_VALUE) { return NGX_ERROR; } dir->valid_info = 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->fd) == 0) { return NGX_ERROR; } return NGX_OK; } ngx_int_t ngx_file_append_mode(ngx_fd_t fd) { #if 0 if (LockFile(fd, 0, 0, 0xffffffff, 0xffffffff) == 0) { return NGX_ERROR; } #endif if (SetFilePointer(fd, 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER) { if (ngx_errno != NO_ERROR) { return NGX_ERROR; } } #if 0 if (UnlockFile(fd, 0, 0, 0xffffffff, 0xffffffff) == 0) { return NGX_ERROR; } #endif return NGX_OK; }