1/* 2 Unix SMB/CIFS implementation. 3 4 simple NTVFS filesystem backend 5 6 Copyright (C) Andrew Tridgell 2003 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. 20*/ 21/* 22 utility functions for simple backend 23*/ 24 25#include "includes.h" 26#include "system/filesys.h" 27#include "svfs.h" 28#include "system/time.h" 29#include "system/dir.h" 30#include "ntvfs/ntvfs.h" 31#include "ntvfs/simple/proto.h" 32 33/* 34 convert a windows path to a unix path - don't do any manging or case sensitive handling 35*/ 36char *svfs_unix_path(struct ntvfs_module_context *ntvfs, 37 struct ntvfs_request *req, const char *name) 38{ 39 struct svfs_private *p = ntvfs->private_data; 40 char *ret; 41 42 if (*name != '\\') { 43 ret = talloc_asprintf(req, "%s/%s", p->connectpath, name); 44 } else { 45 ret = talloc_asprintf(req, "%s%s", p->connectpath, name); 46 } 47 all_string_sub(ret, "\\", "/", 0); 48 49 strlower(ret + strlen(p->connectpath)); 50 51 return ret; 52} 53 54 55/* 56 read a directory and find all matching file names and stat info 57 returned names are separate unix and DOS names. The returned names 58 are relative to the directory 59*/ 60struct svfs_dir *svfs_list_unix(TALLOC_CTX *mem_ctx, struct ntvfs_request *req, const char *unix_path) 61{ 62 char *p, *mask; 63 struct svfs_dir *dir; 64 DIR *odir; 65 struct dirent *dent; 66 uint_t allocated = 0; 67 char *low_mask; 68 69 dir = talloc(mem_ctx, struct svfs_dir); 70 if (!dir) { return NULL; } 71 72 dir->count = 0; 73 dir->files = 0; 74 75 /* find the base directory */ 76 p = strrchr(unix_path, '/'); 77 if (!p) { return NULL; } 78 79 dir->unix_dir = talloc_strndup(mem_ctx, unix_path, PTR_DIFF(p, unix_path)); 80 if (!dir->unix_dir) { return NULL; } 81 82 /* the wildcard pattern is the last part */ 83 mask = p+1; 84 85 low_mask = talloc_strdup(mem_ctx, mask); 86 if (!low_mask) { return NULL; } 87 strlower(low_mask); 88 89 odir = opendir(dir->unix_dir); 90 if (!odir) { return NULL; } 91 92 while ((dent = readdir(odir))) { 93 uint_t i = dir->count; 94 char *full_name; 95 char *low_name; 96 97 if (strchr(dent->d_name, ':') && !strchr(unix_path, ':')) { 98 /* don't show streams in dir listing */ 99 continue; 100 } 101 102 low_name = talloc_strdup(mem_ctx, dent->d_name); 103 if (!low_name) { continue; } 104 strlower(low_name); 105 106 /* check it matches the wildcard pattern */ 107 if (ms_fnmatch(low_mask, low_name, PROTOCOL_NT1) != 0) { 108 continue; 109 } 110 111 if (dir->count >= allocated) { 112 allocated = (allocated + 100) * 1.2; 113 dir->files = talloc_realloc(dir, dir->files, struct svfs_dirfile, allocated); 114 if (!dir->files) { 115 closedir(odir); 116 return NULL; 117 } 118 } 119 120 dir->files[i].name = low_name; 121 if (!dir->files[i].name) { continue; } 122 123 asprintf(&full_name, "%s/%s", dir->unix_dir, dir->files[i].name); 124 if (!full_name) { continue; } 125 126 if (stat(full_name, &dir->files[i].st) == 0) { 127 dir->count++; 128 } 129 130 free(full_name); 131 } 132 133 closedir(odir); 134 135 return dir; 136} 137 138/* 139 read a directory and find all matching file names and stat info 140 returned names are separate unix and DOS names. The returned names 141 are relative to the directory 142*/ 143struct svfs_dir *svfs_list(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req, const char *pattern) 144{ 145 struct svfs_private *p = ntvfs->private_data; 146 char *unix_path; 147 148 unix_path = svfs_unix_path(ntvfs, req, pattern); 149 if (!unix_path) { return NULL; } 150 151 return svfs_list_unix(p, req, unix_path); 152} 153 154 155/******************************************************************* 156set the time on a file via file descriptor 157*******************************************************************/ 158int svfs_file_utime(int fd, struct utimbuf *times) 159{ 160 char *fd_path = NULL; 161 int ret; 162 163 asprintf(&fd_path, "/proc/self/%d", fd); 164 if (!fd_path) { 165 errno = ENOMEM; 166 return -1; 167 } 168 169 ret = utime(fd_path, times); 170 free(fd_path); 171 return ret; 172} 173 174 175/* 176 map a unix file attrib to a DOS attribute 177*/ 178uint16_t svfs_unix_to_dos_attrib(mode_t mode) 179{ 180 uint16_t ret = 0; 181 if (S_ISDIR(mode)) ret |= FILE_ATTRIBUTE_DIRECTORY; 182 if (!(mode & S_IWUSR)) ret |= FILE_ATTRIBUTE_READONLY; 183 return ret; 184} 185 186