1 /* opkg_conf.c - the itsy package management system
5 Copyright (C) 2001 University of Southern California
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2, or (at
10 your option) any later version.
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
19 #include "opkg_conf.h"
22 #include "sprintf_alloc.h"
23 #include "opkg_conf.h"
24 #include "opkg_message.h"
25 #include "file_util.h"
29 #include "opkg_defines.h"
32 static int opkg_conf_parse_file(opkg_conf_t
*conf
, const char *filename
,
33 pkg_src_list_t
*pkg_src_list
,
34 nv_pair_list_t
*tmp_dest_nv_pair_list
,
35 char **tmp_lists_dir
);
36 static int opkg_init_options_array(const opkg_conf_t
*conf
, opkg_option_t
**options
);
37 static int opkg_conf_set_option(const opkg_option_t
*options
,
38 const char *name
, const char *value
);
39 static int opkg_conf_set_default_dest(opkg_conf_t
*conf
,
40 const char *default_dest_name
);
41 static int set_and_load_pkg_src_list(opkg_conf_t
*conf
,
42 pkg_src_list_t
*nv_pair_list
);
43 static int set_and_load_pkg_dest_list(opkg_conf_t
*conf
,
44 nv_pair_list_t
*nv_pair_list
, char * lists_dir
);
46 int opkg_init_options_array(const opkg_conf_t
*conf
, opkg_option_t
**options
)
48 opkg_option_t tmp
[] = {
49 { "force_defaults", OPKG_OPT_TYPE_BOOL
, &conf
->force_defaults
},
50 { "force_depends", OPKG_OPT_TYPE_BOOL
, &conf
->force_depends
},
51 { "force_overwrite", OPKG_OPT_TYPE_BOOL
, &conf
->force_overwrite
},
52 { "force_downgrade", OPKG_OPT_TYPE_BOOL
, &conf
->force_downgrade
},
53 { "force_reinstall", OPKG_OPT_TYPE_BOOL
, &conf
->force_reinstall
},
54 { "force_space", OPKG_OPT_TYPE_BOOL
, &conf
->force_space
},
55 { "ftp_proxy", OPKG_OPT_TYPE_STRING
, &conf
->ftp_proxy
},
56 { "http_proxy", OPKG_OPT_TYPE_STRING
, &conf
->http_proxy
},
57 { "multiple_providers", OPKG_OPT_TYPE_BOOL
, &conf
->multiple_providers
},
58 { "no_proxy", OPKG_OPT_TYPE_STRING
, &conf
->no_proxy
},
59 { "test", OPKG_OPT_TYPE_INT
, &conf
->noaction
},
60 { "noaction", OPKG_OPT_TYPE_INT
, &conf
->noaction
},
61 { "nodeps", OPKG_OPT_TYPE_BOOL
, &conf
->nodeps
},
62 { "offline_root", OPKG_OPT_TYPE_STRING
, &conf
->offline_root
},
63 { "offline_root_post_script_cmd", OPKG_OPT_TYPE_STRING
, &conf
->offline_root_post_script_cmd
},
64 { "offline_root_pre_script_cmd", OPKG_OPT_TYPE_STRING
, &conf
->offline_root_pre_script_cmd
},
65 { "proxy_passwd", OPKG_OPT_TYPE_STRING
, &conf
->proxy_passwd
},
66 { "proxy_user", OPKG_OPT_TYPE_STRING
, &conf
->proxy_user
},
67 { "query-all", OPKG_OPT_TYPE_BOOL
, &conf
->query_all
},
68 { "verbose-wget", OPKG_OPT_TYPE_BOOL
, &conf
->verbose_wget
},
69 { "verbosity", OPKG_OPT_TYPE_BOOL
, &conf
->verbosity
},
73 *options
= (opkg_option_t
*)malloc(sizeof(tmp
));
74 if ( options
== NULL
){
75 fprintf(stderr
,"%s: Unable to allocate memory\n",__FUNCTION__
);
79 memcpy(*options
, tmp
, sizeof(tmp
));
83 static void opkg_conf_override_string(char **conf_str
, char *arg_str
)
89 *conf_str
= strdup(arg_str
);
93 static void opkg_conf_free_string(char **conf_str
)
101 int opkg_conf_init(opkg_conf_t
*conf
, const args_t
*args
)
105 nv_pair_list_t tmp_dest_nv_pair_list
;
106 char * lists_dir
=NULL
;
108 char *etc_opkg_conf_pattern
= "/etc/opkg/*.conf";
109 char *pending_dir
=NULL
;
111 memset(conf
, 0, sizeof(opkg_conf_t
));
113 pkg_src_list_init(&conf
->pkg_src_list
);
115 nv_pair_list_init(&tmp_dest_nv_pair_list
);
116 pkg_dest_list_init(&conf
->pkg_dest_list
);
118 nv_pair_list_init(&conf
->arch_list
);
120 conf
->restrict_to_default_dest
= 0;
121 conf
->default_dest
= NULL
;
125 tmp_dir_base
= args
->tmp_dir
;
127 tmp_dir_base
= getenv("TMPDIR");
128 sprintf_alloc(&conf
->tmp_dir
, "%s/%s",
129 tmp_dir_base
? tmp_dir_base
: OPKG_CONF_DEFAULT_TMP_DIR_BASE
,
130 OPKG_CONF_TMP_DIR_SUFFIX
);
131 conf
->tmp_dir
= mkdtemp(conf
->tmp_dir
);
132 if (conf
->tmp_dir
== NULL
) {
133 fprintf(stderr
, "%s: Failed to create temporary directory `%s': %s\n",
134 __FUNCTION__
, conf
->tmp_dir
, strerror(errno
));
138 conf
->force_depends
= 0;
139 conf
->force_defaults
= 0;
140 conf
->force_overwrite
= 0;
141 conf
->force_downgrade
= 0;
142 conf
->force_reinstall
= 0;
143 conf
->force_space
= 0;
144 conf
->force_removal_of_essential_packages
= 0;
145 conf
->force_removal_of_dependent_packages
= 0;
147 conf
->verbose_wget
= 0;
148 conf
->offline_root
= NULL
;
149 conf
->offline_root_pre_script_cmd
= NULL
;
150 conf
->offline_root_post_script_cmd
= NULL
;
151 conf
->multiple_providers
= 0;
155 conf
->http_proxy
= NULL
;
156 conf
->ftp_proxy
= NULL
;
157 conf
->no_proxy
= NULL
;
158 conf
->proxy_user
= NULL
;
159 conf
->proxy_passwd
= NULL
;
161 pkg_hash_init("pkg-hash", &conf
->pkg_hash
, OPKG_CONF_DEFAULT_HASH_LEN
);
162 hash_table_init("file-hash", &conf
->file_hash
, OPKG_CONF_DEFAULT_HASH_LEN
);
163 hash_table_init("obs-file-hash", &conf
->obs_file_hash
, OPKG_CONF_DEFAULT_HASH_LEN
);
164 lists_dir
=(char *)malloc(1);
166 if (args
->conf_file
) {
167 struct stat stat_buf
;
168 err
= stat(args
->conf_file
, &stat_buf
);
170 if (opkg_conf_parse_file(conf
, args
->conf_file
,
171 &conf
->pkg_src_list
, &tmp_dest_nv_pair_list
,&lists_dir
)<0) {
172 /* Memory leakage from opkg_conf_parse-file */
178 /* if (!lists_dir ){*/
179 if (strlen(lists_dir
)<=1 ){
180 lists_dir
= realloc(lists_dir
,strlen(OPKG_CONF_LISTS_DIR
)+2);
181 sprintf (lists_dir
,"%s",OPKG_CONF_LISTS_DIR
);
184 if (args
->offline_root
) {
185 char *tmp
= malloc(strlen(lists_dir
) + strlen(args
->offline_root
) + 1);
186 sprintf_alloc(&tmp
, "%s/%s",args
->offline_root
,lists_dir
);
191 pending_dir
= malloc(strlen(lists_dir
)+strlen("/pending")+5);
192 snprintf(pending_dir
,strlen(lists_dir
)+strlen("/pending") ,"%s%s",lists_dir
,"/pending");
194 conf
->lists_dir
= strdup(lists_dir
);
195 conf
->pending_dir
= strdup(pending_dir
);
197 if (args
->offline_root
)
198 sprintf_alloc(&etc_opkg_conf_pattern
, "%s/etc/opkg/*.conf", args
->offline_root
);
199 memset(&globbuf
, 0, sizeof(globbuf
));
200 err
= glob(etc_opkg_conf_pattern
, 0, NULL
, &globbuf
);
203 for (i
= 0; i
< globbuf
.gl_pathc
; i
++) {
204 if (globbuf
.gl_pathv
[i
])
205 if ( opkg_conf_parse_file(conf
, globbuf
.gl_pathv
[i
],
206 &conf
->pkg_src_list
, &tmp_dest_nv_pair_list
,&lists_dir
)<0) {
207 /* Memory leakage from opkg_conf_parse-file */
214 /* if no architectures were defined, then default all, noarch, and host architecture */
215 if (nv_pair_list_empty(&conf
->arch_list
)) {
216 nv_pair_list_append(&conf
->arch_list
, "all", "1");
217 nv_pair_list_append(&conf
->arch_list
, "noarch", "1");
218 nv_pair_list_append(&conf
->arch_list
, HOST_CPU_STR
, "10");
221 /* Even if there is no conf file, we'll need at least one dest. */
222 if (tmp_dest_nv_pair_list
.head
== NULL
) {
223 nv_pair_list_append(&tmp_dest_nv_pair_list
,
224 OPKG_CONF_DEFAULT_DEST_NAME
,
225 OPKG_CONF_DEFAULT_DEST_ROOT_DIR
);
228 /* After parsing the file, set options from command-line, (so that
229 command-line arguments take precedence) */
230 /* XXX: CLEANUP: The interaction between args.c and opkg_conf.c
231 really needs to be cleaned up. There is so much duplication
232 right now it is ridiculous. Maybe opkg_conf_t should just save
233 a pointer to args_t (which could then not be freed), rather
234 than duplicating every field here? */
235 if (args
->autoremove
) {
236 conf
->autoremove
= 1;
238 if (args
->force_depends
) {
239 conf
->force_depends
= 1;
241 if (args
->force_defaults
) {
242 conf
->force_defaults
= 1;
244 if (args
->force_overwrite
) {
245 conf
->force_overwrite
= 1;
247 if (args
->force_downgrade
) {
248 conf
->force_downgrade
= 1;
250 if (args
->force_reinstall
) {
251 conf
->force_reinstall
= 1;
253 if (args
->force_removal_of_dependent_packages
) {
254 conf
->force_removal_of_dependent_packages
= 1;
256 if (args
->force_removal_of_essential_packages
) {
257 conf
->force_removal_of_essential_packages
= 1;
262 if (args
->noaction
) {
265 if (args
->query_all
) {
268 if (args
->verbose_wget
) {
269 conf
->verbose_wget
= 1;
271 if (args
->multiple_providers
) {
272 conf
->multiple_providers
= 1;
274 if (args
->verbosity
!= conf
->verbosity
) {
275 conf
->verbosity
= args
->verbosity
;
278 opkg_conf_override_string(&conf
->offline_root
,
280 opkg_conf_override_string(&conf
->offline_root_pre_script_cmd
,
281 args
->offline_root_pre_script_cmd
);
282 opkg_conf_override_string(&conf
->offline_root_post_script_cmd
,
283 args
->offline_root_post_script_cmd
);
285 /* Pigi: added a flag to disable the checking of structures if the command does not need to
286 read anything from there.
288 if ( !(args
->nocheckfordirorfile
)){
289 /* need to run load the source list before dest list -Jamey */
290 if ( !(args
->noreadfeedsfile
))
291 set_and_load_pkg_src_list(conf
, &conf
->pkg_src_list
);
293 /* Now that we have resolved conf->offline_root, we can commit to
294 the directory names for the dests and load in all the package
296 set_and_load_pkg_dest_list(conf
, &tmp_dest_nv_pair_list
,lists_dir
);
299 err
= opkg_conf_set_default_dest(conf
, args
->dest
);
305 nv_pair_list_deinit(&tmp_dest_nv_pair_list
);
312 void opkg_conf_deinit(opkg_conf_t
*conf
)
314 #ifdef OPKG_DEBUG_NO_TMP_CLEANUP
316 fprintf(stderr
, "%s: Not cleaning up %s since opkg compiled "
317 "with OPKG_DEBUG_NO_TMP_CLEANUP\n",
318 __FUNCTION__
, conf
->tmp_dir
);
322 err
= rmdir(conf
->tmp_dir
);
324 if (errno
== ENOTEMPTY
) {
326 sprintf_alloc(&cmd
, "rm -fr %s\n", conf
->tmp_dir
);
331 fprintf(stderr
, "WARNING: Unable to remove temporary directory: %s: %s\n", conf
->tmp_dir
, strerror(errno
));
333 #endif /* OPKG_DEBUG_NO_TMP_CLEANUP */
335 free(conf
->tmp_dir
); /*XXX*/
337 pkg_src_list_deinit(&conf
->pkg_src_list
);
338 pkg_dest_list_deinit(&conf
->pkg_dest_list
);
339 nv_pair_list_deinit(&conf
->arch_list
);
341 pkg_hash_deinit(&conf
->pkg_hash
);
342 if (&conf
->file_hash
)
343 hash_table_deinit(&conf
->file_hash
);
344 if (&conf
->obs_file_hash
)
345 hash_table_deinit(&conf
->obs_file_hash
);
347 opkg_conf_free_string(&conf
->offline_root
);
348 opkg_conf_free_string(&conf
->offline_root_pre_script_cmd
);
349 opkg_conf_free_string(&conf
->offline_root_post_script_cmd
);
351 if (conf
->verbosity
> 1) {
353 hash_table_t
*hashes
[] = {
356 &conf
->obs_file_hash
};
357 for (i
= 0; i
< 3; i
++) {
358 hash_table_t
*hash
= hashes
[i
];
362 for (j
= 0; j
< hash
->n_entries
; j
++) {
364 hash_entry_t
*e
= &hash
->entries
[j
];
367 while (e
&& e
->key
) {
374 opkg_message(conf
, OPKG_DEBUG
, "hash_table[%s] n_buckets=%d n_elements=%d max_conflicts=%d n_conflicts=%d\n",
375 hash
->name
, hash
->n_entries
, hash
->n_elements
, c
, n_conflicts
);
376 hash_table_deinit(hash
);
381 static int opkg_conf_set_default_dest(opkg_conf_t
*conf
,
382 const char *default_dest_name
)
384 pkg_dest_list_elt_t
*iter
;
387 for (iter
= conf
->pkg_dest_list
.head
; iter
; iter
= iter
->next
) {
389 if (strcmp(dest
->name
, default_dest_name
) == 0) {
390 conf
->default_dest
= dest
;
391 conf
->restrict_to_default_dest
= 1;
396 fprintf(stderr
, "ERROR: Unknown dest name: `%s'\n", default_dest_name
);
401 static int set_and_load_pkg_src_list(opkg_conf_t
*conf
, pkg_src_list_t
*pkg_src_list
)
403 pkg_src_list_elt_t
*iter
;
407 for (iter
= pkg_src_list
->head
; iter
; iter
= iter
->next
) {
413 sprintf_alloc(&list_file
, "%s/%s",
414 conf
->restrict_to_default_dest
? conf
->default_dest
->lists_dir
: conf
->lists_dir
,
417 if (file_exists(list_file
)) {
418 pkg_hash_add_from_file(conf
, list_file
, src
, NULL
, 0);
426 static int set_and_load_pkg_dest_list(opkg_conf_t
*conf
, nv_pair_list_t
*nv_pair_list
, char *lists_dir
)
428 nv_pair_list_elt_t
*iter
;
433 for (iter
= nv_pair_list
->head
; iter
; iter
= iter
->next
) {
434 nv_pair
= iter
->data
;
436 if (conf
->offline_root
) {
437 sprintf_alloc(&root_dir
, "%s%s", conf
->offline_root
, nv_pair
->value
);
439 root_dir
= strdup(nv_pair
->value
);
441 dest
= pkg_dest_list_append(&conf
->pkg_dest_list
, nv_pair
->name
, root_dir
, lists_dir
);
446 if (conf
->default_dest
== NULL
) {
447 conf
->default_dest
= dest
;
449 if (file_exists(dest
->status_file_name
)) {
450 pkg_hash_add_from_file(conf
, dest
->status_file_name
,
458 static int opkg_conf_parse_file(opkg_conf_t
*conf
, const char *filename
,
459 pkg_src_list_t
*pkg_src_list
,
460 nv_pair_list_t
*tmp_dest_nv_pair_list
,
464 opkg_option_t
* options
;
465 FILE *file
= fopen(filename
, "r");
466 regex_t valid_line_re
, comment_re
;
467 #define regmatch_size 12
468 regmatch_t regmatch
[regmatch_size
];
470 if (opkg_init_options_array(conf
, &options
)<0)
474 fprintf(stderr
, "%s: failed to open %s: %s\n",
475 __FUNCTION__
, filename
, strerror(errno
));
479 opkg_message(conf
, OPKG_NOTICE
, "loading conf file %s\n", filename
);
481 err
= xregcomp(&comment_re
,
482 "^[[:space:]]*(#.*|[[:space:]]*)$",
488 err
= xregcomp(&valid_line_re
, "^[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))[[:space:]]*(\"([^\"]*)\"|([^[:space:]]*))([[:space:]]+([^[:space:]]+))?[[:space:]]*$", REG_EXTENDED
);
497 char *type
, *name
, *value
, *extra
;
499 line
= file_read_line_alloc(file
);
507 if (regexec(&comment_re
, line
, 0, 0, 0) == 0) {
511 if (regexec(&valid_line_re
, line
, regmatch_size
, regmatch
, 0) == REG_NOMATCH
) {
513 fprintf(stderr
, "%s:%d: Ignoring invalid line: `%s'\n",
514 filename
, line_num
, line
);
518 /* This has to be so ugly to deal with optional quotation marks */
519 if (regmatch
[2].rm_so
> 0) {
520 type
= strndup(line
+ regmatch
[2].rm_so
,
521 regmatch
[2].rm_eo
- regmatch
[2].rm_so
);
523 type
= strndup(line
+ regmatch
[3].rm_so
,
524 regmatch
[3].rm_eo
- regmatch
[3].rm_so
);
526 if (regmatch
[5].rm_so
> 0) {
527 name
= strndup(line
+ regmatch
[5].rm_so
,
528 regmatch
[5].rm_eo
- regmatch
[5].rm_so
);
530 name
= strndup(line
+ regmatch
[6].rm_so
,
531 regmatch
[6].rm_eo
- regmatch
[6].rm_so
);
533 if (regmatch
[8].rm_so
> 0) {
534 value
= strndup(line
+ regmatch
[8].rm_so
,
535 regmatch
[8].rm_eo
- regmatch
[8].rm_so
);
537 value
= strndup(line
+ regmatch
[9].rm_so
,
538 regmatch
[9].rm_eo
- regmatch
[9].rm_so
);
541 if (regmatch
[11].rm_so
> 0) {
542 extra
= strndup (line
+ regmatch
[11].rm_so
,
543 regmatch
[11].rm_eo
- regmatch
[11].rm_so
);
546 /* We use the tmp_dest_nv_pair_list below instead of
547 conf->pkg_dest_list because we might encounter an
548 offline_root option later and that would invalidate the
549 directories we would have computed in
550 pkg_dest_list_init. (We do a similar thing with
551 tmp_src_nv_pair_list for sake of symmetry.) */
552 if (strcmp(type
, "option") == 0) {
553 opkg_conf_set_option(options
, name
, value
);
554 } else if (strcmp(type
, "src") == 0) {
555 if (!nv_pair_list_find((nv_pair_list_t
*) pkg_src_list
, name
)) {
556 pkg_src_list_append (pkg_src_list
, name
, value
, extra
, 0);
558 opkg_message(conf
, OPKG_ERROR
, "ERROR: duplicate src declaration. Skipping:\n\t src %s %s\n",
561 } else if (strcmp(type
, "src/gz") == 0) {
562 if (!nv_pair_list_find((nv_pair_list_t
*) pkg_src_list
, name
)) {
563 pkg_src_list_append (pkg_src_list
, name
, value
, extra
, 1);
565 opkg_message(conf
, OPKG_ERROR
, "ERROR: duplicate src declaration. Skipping:\n\t src %s %s\n",
568 } else if (strcmp(type
, "dest") == 0) {
569 nv_pair_list_append(tmp_dest_nv_pair_list
, name
, value
);
570 } else if (strcmp(type
, "lists_dir") == 0) {
571 *lists_dir
= realloc(*lists_dir
,strlen(value
)+1);
572 if (*lists_dir
== NULL
) {
573 opkg_message(conf
, OPKG_ERROR
, "ERROR: Not enough memory\n");
577 sprintf (*lists_dir
,"%s",value
);
578 } else if (strcmp(type
, "arch") == 0) {
579 opkg_message(conf
, OPKG_INFO
, "supported arch %s priority (%s)\n", name
, value
);
581 opkg_message(conf
, OPKG_NOTICE
, "defaulting architecture %s priority to 10\n", name
);
582 value
= strdup("10");
584 nv_pair_list_append(&conf
->arch_list
, strdup(name
), strdup(value
));
586 fprintf(stderr
, "WARNING: Ignoring unknown configuration "
587 "parameter: %s %s %s\n", type
, name
, value
);
603 regfree(&comment_re
);
604 regfree(&valid_line_re
);
610 static int opkg_conf_set_option(const opkg_option_t
*options
,
611 const char *name
, const char *value
)
614 while (options
[i
].name
) {
615 if (strcmp(options
[i
].name
, name
) == 0) {
616 switch (options
[i
].type
) {
617 case OPKG_OPT_TYPE_BOOL
:
618 *((int *)options
[i
].value
) = 1;
620 case OPKG_OPT_TYPE_INT
:
622 *((int *)options
[i
].value
) = atoi(value
);
625 printf("%s: Option %s need an argument\n",
629 case OPKG_OPT_TYPE_STRING
:
631 *((char **)options
[i
].value
) = strdup(value
);
634 printf("%s: Option %s need an argument\n",
643 fprintf(stderr
, "%s: Unrecognized option: %s=%s\n",
644 __FUNCTION__
, name
, value
);
648 int opkg_conf_write_status_files(opkg_conf_t
*conf
)
650 pkg_dest_list_elt_t
*iter
;
659 for (iter
= conf
->pkg_dest_list
.head
; iter
; iter
= iter
->next
) {
661 dest
->status_file
= fopen(dest
->status_file_tmp_name
, "w");
662 if (dest
->status_file
== NULL
) {
663 fprintf(stderr
, "%s: Can't open status file: %s for writing: %s\n",
664 __FUNCTION__
, dest
->status_file_name
, strerror(errno
));
668 all
= pkg_vec_alloc();
669 pkg_hash_fetch_available(&conf
->pkg_hash
, all
);
671 for(i
= 0; i
< all
->len
; i
++) {
673 /* We don't need most uninstalled packages in the status file */
674 if (pkg
->state_status
== SS_NOT_INSTALLED
675 && (pkg
->state_want
== SW_UNKNOWN
676 || pkg
->state_want
== SW_DEINSTALL
677 || pkg
->state_want
== SW_PURGE
)) {
681 fprintf(stderr
, "Null package\n");
683 if (pkg
->dest
== NULL
) {
684 fprintf(stderr
, "%s: ERROR: Can't write status for "
685 "package %s since it has a NULL dest\n",
686 __FUNCTION__
, pkg
->name
);
689 if (pkg
->dest
->status_file
) {
690 pkg_print_status(pkg
, pkg
->dest
->status_file
);
696 for (iter
= conf
->pkg_dest_list
.head
; iter
; iter
= iter
->next
) {
698 if (dest
->status_file
) {
699 err
= ferror(dest
->status_file
);
700 fclose(dest
->status_file
);
701 dest
->status_file
= NULL
;
703 file_move(dest
->status_file_tmp_name
, dest
->status_file_name
);
705 fprintf(stderr
, "%s: ERROR: An error has occurred writing %s, "
706 "retaining old %s\n", __FUNCTION__
,
707 dest
->status_file_tmp_name
, dest
->status_file_name
);
716 char *root_filename_alloc(opkg_conf_t
*conf
, char *filename
)
719 sprintf_alloc(&root_filename
, "%s%s", (conf
->offline_root
? conf
->offline_root
: ""), filename
);
720 return root_filename
;