| /* ==================================================================== |
| * Copyright (c) 1999 The Apache Group. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * 4. The names "Apache Server" and "Apache Group" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Group. |
| * For more information on the Apache Group and the Apache HTTP server |
| * project, please see <http://www.apache.org/>. |
| * |
| */ |
| |
| #include "fileio.h" |
| #include "apr_file_io.h" |
| #include "apr_general.h" |
| #include "apr_portable.h" |
| #include "apr_lib.h" |
| #include <errno.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| ap_status_t file_cleanup(void *thefile) |
| { |
| struct file_t *file = thefile; |
| int rv; |
| if (file->buffered) { |
| rv = fclose(file->filehand); |
| } |
| else { |
| rv = close(file->filedes); |
| } |
| |
| if (rv == 0) { |
| file->filedes = -1; |
| return APR_SUCCESS; |
| } |
| else { |
| return errno; |
| /* Are there any error conditions other than EINTR or EBADF? */ |
| } |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_open(ap_context_t *, char *, ap_int32, |
| * ap_fileperms, ap_file_t **) |
| * Open the specified file. |
| * arg 1) The context to use. |
| * arg 2) The full path to the file (using / on all systems) |
| * arg 3) Or'ed value of: |
| * APR_READ open for reading |
| * APR_WRITE open for writing |
| * APR_CREATE create the file if not there |
| * APR_APPEND file ptr is set to end prior to all writes |
| * APR_TRUNCATE set length to zero if file exists |
| * APR_BINARY not a test file |
| * APR_BUFFERED buffer the data. Default is non-buffered |
| * APR_EXCL return error if APR_CREATE and file exists |
| * arg 4) Access permissions for file. |
| * arg 5) The opened file descriptor. |
| * NOTE: If mode is -1, the system open command will be called without any |
| * mode parameters. |
| */ |
| ap_status_t ap_open(ap_context_t *cont, char *fname, ap_int32_t flag, ap_fileperms_t perm, struct file_t **new) |
| { |
| int oflags = 0; |
| struct stat info; |
| mode_t mode = get_fileperms(perm); |
| char *buf_oflags; |
| |
| (*new) = (struct file_t *)ap_palloc(cont, sizeof(struct file_t)); |
| |
| (*new)->cntxt = cont; |
| (*new)->oflags = oflags; |
| |
| if ((flag & APR_READ) && (flag & APR_WRITE)) { |
| oflags = O_RDWR; |
| } |
| else if (flag & APR_READ) { |
| oflags = O_RDONLY; |
| } |
| else if (flag & APR_WRITE) { |
| oflags = O_WRONLY; |
| } |
| else { |
| (*new)->filedes = -1; |
| return APR_EACCES; |
| } |
| |
| if (flag & APR_BUFFERED) { |
| (*new)->buffered = TRUE; |
| } |
| (*new)->fname = strdup(fname); |
| |
| if (flag & APR_CREATE) { |
| oflags |= O_CREAT; |
| if (flag & APR_EXCL) { |
| oflags |= O_EXCL; |
| } |
| } |
| if ((flag & APR_EXCL) && !(flag & APR_CREATE)) { |
| (*new)->filedes = -1; |
| return APR_EACCES; |
| } |
| |
| if (flag & APR_APPEND) { |
| oflags |= O_APPEND; |
| } |
| if (flag & APR_TRUNCATE) { |
| oflags |= O_TRUNC; |
| } |
| |
| if (mode == -1) { |
| (*new)->filedes = open(fname, oflags); |
| } |
| else { |
| (*new)->filedes = open(fname, oflags, mode); |
| } |
| |
| if ((*new)->filedes < 0) { |
| (*new)->filedes = -1; |
| (*new)->eof_hit = 1; |
| return errno; |
| } |
| |
| if ((*new)->buffered) { |
| switch (oflags) { |
| case O_RDONLY: |
| buf_oflags = "r"; |
| break; |
| case O_WRONLY: |
| buf_oflags = "w"; |
| break; |
| case O_RDWR: |
| buf_oflags = "r+"; |
| break; |
| } |
| (*new)->filehand = fdopen((*new)->filedes, buf_oflags); |
| if ((*new)->filehand == NULL) { |
| file_cleanup(*new); |
| return errno; |
| } |
| } |
| (*new)->stated = 0; /* we haven't called stat for this file yet. */ |
| (*new)->eof_hit = 0; |
| ap_register_cleanup((*new)->cntxt, (void *)(*new), file_cleanup, NULL); |
| return APR_SUCCESS; |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_close(ap_file_t *) |
| * Close the specified file. |
| * arg 1) The file descriptor to close. |
| */ |
| ap_status_t ap_close(struct file_t *file) |
| { |
| ap_status_t rv; |
| |
| if ((rv = file_cleanup(file)) == APR_SUCCESS) { |
| ap_kill_cleanup(file->cntxt, file, file_cleanup); |
| return APR_SUCCESS; |
| } |
| return rv; |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_remove_file(ap_context_t *, char *) |
| * delete the specified file. |
| * arg 1) The context to use. |
| * arg 2) The full path to the file (using / on all systems) |
| * NOTE: If the file is open, it won't be removed until all instances are |
| * closed. |
| */ |
| ap_status_t ap_remove_file(ap_context_t *cont, char *path) |
| { |
| if (unlink(path) == 0) { |
| return APR_SUCCESS; |
| } |
| else { |
| return errno; |
| } |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_get_os_file(ap_file_t *, ap_os_file_t *) |
| * convert the file from apr type to os specific type. |
| * arg 1) The apr file to convert. |
| * arg 2) The os specific file we are converting to |
| */ |
| ap_status_t ap_get_os_file(struct file_t *file, ap_os_file_t *thefile) |
| { |
| if (file == NULL) { |
| return APR_ENOFILE; |
| } |
| thefile = &(file->filedes); |
| return APR_SUCCESS; |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_put_os_file(ap_context_t *, ap_file_t *, ap_os_file_t *) |
| * convert the file from os specific type to apr type. |
| * arg 1) The context to use if it is needed. |
| * arg 2) The apr file we are converting to. |
| * arg 3) The os specific file to convert |
| */ |
| ap_status_t ap_put_os_file(ap_context_t *cont, struct file_t **file, |
| ap_os_file_t *thefile) |
| { |
| if (cont == NULL) { |
| return APR_ENOCONT; |
| } |
| if ((*file) == NULL) { |
| (*file) = (struct file_t *)ap_palloc(cont, sizeof(struct file_t)); |
| (*file)->cntxt = cont; |
| } |
| (*file)->filedes = *thefile; |
| return APR_SUCCESS; |
| } |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_eof(ap_file_t *) |
| * Are we at the end of the file |
| * arg 1) The apr file we are testing. |
| * NOTE: Returns APR_EOF if we are at the end of file, APR_SUCCESS otherwise. |
| */ |
| ap_status_t ap_eof(ap_file_t *fptr) |
| { |
| char ch; |
| if (fptr->buffered) { |
| if (feof(fptr->filehand) == 0) { |
| return APR_SUCCESS; |
| } |
| return APR_EOF; |
| } |
| if (fptr->eof_hit == 1) { |
| return APR_EOF; |
| } |
| APR_SUCCESS; |
| } |
| |
