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00001 /* Licensed to the Apache Software Foundation (ASF) under one or more 00002 * contributor license agreements. See the NOTICE file distributed with 00003 * this work for additional information regarding copyright ownership. 00004 * The ASF licenses this file to You under the Apache License, Version 2.0 00005 * (the "License"); you may not use this file except in compliance with 00006 * the License. You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef FILE_IO_H 00018 #define FILE_IO_H 00019 00020 #include "apr.h" 00021 #include "apr_private.h" 00022 #include "apr_general.h" 00023 #include "apr_tables.h" 00024 #include "apr_file_io.h" 00025 #include "apr_file_info.h" 00026 #include "apr_errno.h" 00027 #include "apr_lib.h" 00028 #include "apr_poll.h" 00029 00030 /* System headers the file I/O library needs */ 00031 #if APR_HAVE_FCNTL_H 00032 #include <fcntl.h> 00033 #endif 00034 #if APR_HAVE_SYS_TYPES_H 00035 #include <sys/types.h> 00036 #endif 00037 #if APR_HAVE_ERRNO_H 00038 #include <errno.h> 00039 #endif 00040 #if APR_HAVE_STRING_H 00041 #include <string.h> 00042 #endif 00043 #if APR_HAVE_STRINGS_H 00044 #include <strings.h> 00045 #endif 00046 #if APR_HAVE_DIRENT_H 00047 #include <dirent.h> 00048 #endif 00049 #ifdef HAVE_SYS_STAT_H 00050 #include <sys/stat.h> 00051 #endif 00052 #if APR_HAVE_UNISTD_H 00053 #include <unistd.h> 00054 #endif 00055 #if APR_HAVE_STDIO_H 00056 #include <stdio.h> 00057 #endif 00058 #if APR_HAVE_STDLIB_H 00059 #include <stdlib.h> 00060 #endif 00061 #if APR_HAVE_SYS_UIO_H 00062 #include <sys/uio.h> 00063 #endif 00064 #if APR_HAVE_SYS_TIME_H 00065 #include <sys/time.h> 00066 #endif 00067 00068 #include <fsio.h> 00069 00070 /* End System headers */ 00071 00072 #define APR_FILE_DEFAULT_BUFSIZE 4096 00073 /* For backwards compat */ 00074 #define APR_FILE_BUFSIZE APR_FILE_DEFAULT_BUFSIZE 00075 00076 #if APR_HAS_THREADS 00077 #define file_lock(f) do { \ 00078 if ((f)->thlock) \ 00079 apr_thread_mutex_lock((f)->thlock); \ 00080 } while (0) 00081 #define file_unlock(f) do { \ 00082 if ((f)->thlock) \ 00083 apr_thread_mutex_unlock((f)->thlock); \ 00084 } while (0) 00085 #else 00086 #define file_lock(f) do {} while (0) 00087 #define file_unlock(f) do {} while (0) 00088 #endif 00089 00090 #if APR_HAS_LARGE_FILES 00091 #define lseek(f,o,w) lseek64(f,o,w) 00092 #define ftruncate(f,l) ftruncate64(f,l) 00093 #endif 00094 00095 typedef struct stat struct_stat; 00096 00097 struct apr_file_t { 00098 apr_pool_t *pool; 00099 int filedes; 00100 char *fname; 00101 apr_int32_t flags; 00102 int eof_hit; 00103 int is_pipe; 00104 apr_interval_time_t timeout; 00105 int buffered; 00106 enum {BLK_UNKNOWN, BLK_OFF, BLK_ON } blocking; 00107 int ungetchar; /* Last char provided by an unget op. (-1 = no char)*/ 00108 00109 /* if there is a timeout set, then this pollset is used */ 00110 apr_pollset_t *pollset; 00111 00112 /* Stuff for buffered mode */ 00113 char *buffer; 00114 apr_size_t bufpos; /* Read/Write position in buffer */ 00115 apr_size_t bufsize; /* The buffer size */ 00116 apr_off_t dataRead; /* amount of valid data read into buffer */ 00117 int direction; /* buffer being used for 0 = read, 1 = write */ 00118 apr_off_t filePtr; /* position in file of handle */ 00119 #if APR_HAS_THREADS 00120 struct apr_thread_mutex_t *thlock; 00121 #endif 00122 }; 00123 00124 struct apr_dir_t { 00125 apr_pool_t *pool; 00126 char *dirname; 00127 DIR *dirstruct; 00128 struct dirent *entry; 00129 }; 00130 00131 typedef struct apr_stat_entry_t apr_stat_entry_t; 00132 00133 struct apr_stat_entry_t { 00134 struct stat info; 00135 char *casedName; 00136 apr_time_t expire; 00137 NXPathCtx_t pathCtx; 00138 }; 00139 00140 #define MAX_SERVER_NAME 64 00141 #define MAX_VOLUME_NAME 64 00142 #define MAX_PATH_NAME 256 00143 #define MAX_FILE_NAME 256 00144 00145 #define DRIVE_ONLY 1 00146 00147 /* If the user passes d: vs. D: (or //mach/share vs. //MACH/SHARE), 00148 * we need to fold the case to canonical form. This function is 00149 * supposed to do so. 00150 */ 00151 apr_status_t filepath_root_case(char **rootpath, char *root, apr_pool_t *p); 00152 00153 /* This function check to see of the given path includes a drive/volume 00154 * specifier. If the _only_ parameter is set to DRIVE_ONLY then it 00155 * check to see of the path only contains a drive/volume specifier and 00156 * nothing else. 00157 */ 00158 apr_status_t filepath_has_drive(const char *rootpath, int only, apr_pool_t *p); 00159 00160 /* This function compares the drive/volume specifiers for each given path. 00161 * It returns zero if they match or non-zero if not. 00162 */ 00163 apr_status_t filepath_compare_drive(const char *path1, const char *path2, apr_pool_t *p); 00164 00165 apr_status_t apr_unix_file_cleanup(void *); 00166 apr_status_t apr_unix_child_file_cleanup(void *); 00167 00168 mode_t apr_unix_perms2mode(apr_fileperms_t perms); 00169 apr_fileperms_t apr_unix_mode2perms(mode_t mode); 00170 00171 apr_status_t apr_file_flush_locked(apr_file_t *thefile); 00172 apr_status_t apr_file_info_get_locked(apr_finfo_t *finfo, apr_int32_t wanted, 00173 apr_file_t *thefile); 00174 00175 #endif /* ! FILE_IO_H */ 00176