summaryrefslogtreecommitdiffstats
path: root/file_io/netware/filestat.c
blob: 662795128b1c2eae94059264a97670382b38dce1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "apr_arch_file_io.h"
#include "fsio.h"
#include "nks/dirio.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_strings.h"
#include "apr_errno.h"
#include "apr_hash.h"
#include "apr_thread_rwlock.h"

#ifdef HAVE_UTIME_H
#include <utime.h>
#endif

#define APR_HAS_PSA

static apr_filetype_e filetype_from_mode(mode_t mode)
{
    apr_filetype_e type = APR_NOFILE;

    if (S_ISREG(mode))
        type = APR_REG;
    else if (S_ISDIR(mode))
        type = APR_DIR;
    else if (S_ISCHR(mode))
        type = APR_CHR;
    else if (S_ISBLK(mode))
        type = APR_BLK;
    else if (S_ISFIFO(mode))
        type = APR_PIPE;
    else if (S_ISLNK(mode))
        type = APR_LNK;
    else if (S_ISSOCK(mode))
        type = APR_SOCK;
    else
        type = APR_UNKFILE;
    return type;
}

static void fill_out_finfo(apr_finfo_t *finfo, struct stat *info,
                           apr_int32_t wanted)
{ 
    finfo->valid = APR_FINFO_MIN | APR_FINFO_IDENT | APR_FINFO_NLINK 
                    | APR_FINFO_OWNER | APR_FINFO_PROT;

    finfo->protection = apr_unix_mode2perms(info->st_mode);
    finfo->filetype = filetype_from_mode(info->st_mode);
    finfo->user = info->st_uid;
    finfo->group = info->st_gid;
    finfo->size = info->st_size;
    finfo->inode = info->st_ino;
    finfo->device = info->st_dev;
    finfo->nlink = info->st_nlink;

    apr_time_ansi_put(&finfo->atime, info->st_atime.tv_sec);
    apr_time_ansi_put(&finfo->mtime, info->st_mtime.tv_sec);
    apr_time_ansi_put(&finfo->ctime, info->st_ctime.tv_sec);

#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
#ifdef DEV_BSIZE
    finfo->csize = (apr_off_t)info->st_blocks * (apr_off_t)DEV_BSIZE;
#else
    finfo->csize = (apr_off_t)info->st_blocks * (apr_off_t)512;
#endif
    finfo->valid |= APR_FINFO_CSIZE;
#endif
}

apr_status_t apr_file_info_get_locked(apr_finfo_t *finfo, apr_int32_t wanted,
                                      apr_file_t *thefile)
{
    struct_stat info;

    if (thefile->buffered) {
        apr_status_t rv = apr_file_flush_locked(thefile);
        if (rv != APR_SUCCESS)
            return rv;
    }

    if (fstat(thefile->filedes, &info) == 0) {
        finfo->pool = thefile->pool;
        finfo->fname = thefile->fname;
        fill_out_finfo(finfo, &info, wanted);
        return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
    }
    else {
        return errno;
    }
}

APR_DECLARE(apr_status_t) apr_file_info_get(apr_finfo_t *finfo, 
                                            apr_int32_t wanted,
                                            apr_file_t *thefile)
{
    struct stat info;

    if (thefile->buffered) {
        /* XXX: flush here is not mutex protected */
        apr_status_t rv = apr_file_flush(thefile);
        if (rv != APR_SUCCESS)
            return rv;
    }

    if (fstat(thefile->filedes, &info) == 0) {
        finfo->pool = thefile->pool;
        finfo->fname = thefile->fname;
        fill_out_finfo(finfo, &info, wanted);
        return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
    }
    else {
        return errno;
    }
}

APR_DECLARE(apr_status_t) apr_file_perms_set(const char *fname, 
                                             apr_fileperms_t perms)
{
    mode_t mode = apr_unix_perms2mode(perms);

    if (chmod(fname, mode) == -1)
        return errno;
    return APR_SUCCESS;
}

APR_DECLARE(apr_status_t) apr_file_attrs_set(const char *fname,
                                             apr_fileattrs_t attributes,
                                             apr_fileattrs_t attr_mask,
                                             apr_pool_t *pool)
{
    apr_status_t status;
    apr_finfo_t finfo;

    /* Don't do anything if we can't handle the requested attributes */
    if (!(attr_mask & (APR_FILE_ATTR_READONLY
                       | APR_FILE_ATTR_EXECUTABLE)))
        return APR_SUCCESS;

    status = apr_stat(&finfo, fname, APR_FINFO_PROT, pool);
    if (status)
        return status;

    /* ### TODO: should added bits be umask'd? */
    if (attr_mask & APR_FILE_ATTR_READONLY)
    {
        if (attributes & APR_FILE_ATTR_READONLY)
        {
            finfo.protection &= ~APR_UWRITE;
            finfo.protection &= ~APR_GWRITE;
            finfo.protection &= ~APR_WWRITE;
        }
        else
        {
            /* ### umask this! */
            finfo.protection |= APR_UWRITE;
            finfo.protection |= APR_GWRITE;
            finfo.protection |= APR_WWRITE;
        }
    }

    if (attr_mask & APR_FILE_ATTR_EXECUTABLE)
    {
        if (attributes & APR_FILE_ATTR_EXECUTABLE)
        {
            /* ### umask this! */
            finfo.protection |= APR_UEXECUTE;
            finfo.protection |= APR_GEXECUTE;
            finfo.protection |= APR_WEXECUTE;
        }
        else
        {
            finfo.protection &= ~APR_UEXECUTE;
            finfo.protection &= ~APR_GEXECUTE;
            finfo.protection &= ~APR_WEXECUTE;
        }
    }

    return apr_file_perms_set(fname, finfo.protection);
}

#ifndef APR_HAS_PSA
static apr_status_t stat_cache_cleanup(void *data)
{
    apr_pool_t *p = (apr_pool_t *)getGlobalPool();
    apr_hash_index_t *hi;
    apr_hash_t *statCache = (apr_hash_t*)data;
	char *key;
    apr_ssize_t keylen;
    NXPathCtx_t pathctx;

    for (hi = apr_hash_first(p, statCache); hi; hi = apr_hash_next(hi)) {
        apr_hash_this(hi, (const void**)&key, &keylen, (void**)&pathctx);

        if (pathctx) {
            NXFreePathContext(pathctx);
        }
    }

    return APR_SUCCESS;
}

int cstat (NXPathCtx_t ctx, char *path, struct stat *buf, unsigned long requestmap, apr_pool_t *p)
{
    apr_pool_t *gPool = (apr_pool_t *)getGlobalPool();
    apr_hash_t *statCache = NULL;
    apr_thread_rwlock_t *rwlock = NULL;

    NXPathCtx_t pathctx = 0;
    char *ptr = NULL, *tr;
    int len = 0, x;
    char *ppath;
    char *pinfo;

    if (ctx == 1) {

        /* If there isn't a global pool then just stat the file
           and return */
        if (!gPool) {
            char poolname[50];
    
            if (apr_pool_create(&gPool, NULL) != APR_SUCCESS) {
                return getstat(ctx, path, buf, requestmap);
            }
    
            setGlobalPool(gPool);
            apr_pool_tag(gPool, apr_pstrdup(gPool, "cstat_mem_pool"));
    
            statCache = apr_hash_make(gPool);
            apr_pool_userdata_set ((void*)statCache, "STAT_CACHE", stat_cache_cleanup, gPool);

            apr_thread_rwlock_create(&rwlock, gPool);
            apr_pool_userdata_set ((void*)rwlock, "STAT_CACHE_LOCK", apr_pool_cleanup_null, gPool);
        }
        else {
            apr_pool_userdata_get((void**)&statCache, "STAT_CACHE", gPool);
            apr_pool_userdata_get((void**)&rwlock, "STAT_CACHE_LOCK", gPool);
        }

        if (!gPool || !statCache || !rwlock) {
            return getstat(ctx, path, buf, requestmap);
        }
    
        for (x = 0,tr = path;*tr != '\0';tr++,x++) {
            if (*tr == '\\' || *tr == '/') {
                ptr = tr;
                len = x;
            }
            if (*tr == ':') {
                ptr = "\\";
                len = x;
            }
        }
    
        if (ptr) {
            ppath = apr_pstrndup (p, path, len);
            strlwr(ppath);
            if (ptr[1] != '\0') {
                ptr++;
            }
            /* If the path ended in a trailing slash then our result path
               will be a single slash. To avoid stat'ing the root with a
               slash, we need to make sure we stat the current directory
               with a dot */
            if (((*ptr == '/') || (*ptr == '\\')) && (*(ptr+1) == '\0')) {
                pinfo = apr_pstrdup (p, ".");
            }
            else {
                pinfo = apr_pstrdup (p, ptr);
            }
        }
    
        /* If we have a statCache then try to pull the information
           from the cache.  Otherwise just stat the file and return.*/
        if (statCache) {
            apr_thread_rwlock_rdlock(rwlock);
            pathctx = (NXPathCtx_t) apr_hash_get(statCache, ppath, APR_HASH_KEY_STRING);
            apr_thread_rwlock_unlock(rwlock);
            if (pathctx) {
                return getstat(pathctx, pinfo, buf, requestmap);
            }
            else {
                int err;

                err = NXCreatePathContext(0, ppath, 0, NULL, &pathctx);
                if (!err) {
                    apr_thread_rwlock_wrlock(rwlock);
                    apr_hash_set(statCache, apr_pstrdup(gPool,ppath) , APR_HASH_KEY_STRING, (void*)pathctx);
                    apr_thread_rwlock_unlock(rwlock);
                    return getstat(pathctx, pinfo, buf, requestmap);
                }
            }
        }
    }
    return getstat(ctx, path, buf, requestmap);
}
#endif

APR_DECLARE(apr_status_t) apr_stat(apr_finfo_t *finfo, 
                                   const char *fname, 
                                   apr_int32_t wanted, apr_pool_t *pool)
{
    struct stat info;
    int srv;
    NXPathCtx_t pathCtx = 0;

    getcwdpath(NULL, &pathCtx, CTX_ACTUAL_CWD);
#ifdef APR_HAS_PSA
	srv = getstat(pathCtx, (char*)fname, &info, ST_STAT_BITS|ST_NAME_BIT);
#else
    srv = cstat(pathCtx, (char*)fname, &info, ST_STAT_BITS|ST_NAME_BIT, pool);
#endif
    errno = srv;

    if (srv == 0) {
        finfo->pool = pool;
        finfo->fname = fname;
        fill_out_finfo(finfo, &info, wanted);
        if (wanted & APR_FINFO_LINK)
            wanted &= ~APR_FINFO_LINK;
        if (wanted & APR_FINFO_NAME) {
            finfo->name = apr_pstrdup(pool, info.st_name);
            finfo->valid |= APR_FINFO_NAME;
        }
        return (wanted & ~finfo->valid) ? APR_INCOMPLETE : APR_SUCCESS;
    }
    else {
#if !defined(ENOENT) || !defined(ENOTDIR)
#error ENOENT || ENOTDIR not defined; please see the
#error comments at this line in the source for a workaround.
        /*
         * If ENOENT || ENOTDIR is not defined in one of the your OS's
         * include files, APR cannot report a good reason why the stat()
         * of the file failed; there are cases where it can fail even though
         * the file exists.  This opens holes in Apache, for example, because
         * it becomes possible for someone to get a directory listing of a 
         * directory even though there is an index (eg. index.html) file in 
         * it.  If you do not have a problem with this, delete the above 
         * #error lines and start the compile again.  If you need to do this,
         * please submit a bug report to http://www.apache.org/bug_report.html
         * letting us know that you needed to do this.  Please be sure to 
         * include the operating system you are using.
         */
        /* WARNING: All errors will be handled as not found
         */
#if !defined(ENOENT) 
        return APR_ENOENT;
#else
        /* WARNING: All errors but not found will be handled as not directory
         */
        if (errno != ENOENT)
            return APR_ENOENT;
        else
            return errno;
#endif
#else /* All was defined well, report the usual: */
        return errno;
#endif
    }
}

APR_DECLARE(apr_status_t) apr_file_mtime_set(const char *fname,
                                              apr_time_t mtime,
                                              apr_pool_t *pool)
{
    apr_status_t status;
    apr_finfo_t finfo;

    status = apr_stat(&finfo, fname, APR_FINFO_ATIME, pool);
    if (status) {
        return status;
    }

#ifdef HAVE_UTIMES
    {
      struct timeval tvp[2];
    
      tvp[0].tv_sec = apr_time_sec(finfo.atime);
      tvp[0].tv_usec = apr_time_usec(finfo.atime);
      tvp[1].tv_sec = apr_time_sec(mtime);
      tvp[1].tv_usec = apr_time_usec(mtime);
      
      if (utimes(fname, tvp) == -1) {
        return errno;
      }
    }
#elif defined(HAVE_UTIME)
    {
      struct utimbuf buf;
      
      buf.actime = (time_t) (finfo.atime / APR_USEC_PER_SEC);
      buf.modtime = (time_t) (mtime / APR_USEC_PER_SEC);
      
      if (utime(fname, &buf) == -1) {
        return errno;
      }
    }
#else
    return APR_ENOTIMPL;
#endif

    return APR_SUCCESS;
}