1 /*
2 * Copyright 2014-2017 Frank Hunleth
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "fwup_list.h"
18 #include <confuse.h>
19 #include <stdlib.h>
20 #include <string.h>
21
22 #include "cfgfile.h"
23 #include "util.h"
24 #include "simple_string.h"
25
strsort(const void * a,const void * b)26 static int strsort(const void *a, const void *b)
27 {
28 return strcmp(*(const char **) a, *(const char **) b);
29 }
30
list_tasks(cfg_t * cfg)31 static int list_tasks(cfg_t *cfg)
32 {
33 size_t i;
34 cfg_opt_t *opt = cfg_getopt(cfg, "task");
35 if (!opt)
36 ERR_RETURN("Firmware file missing task section");
37
38 const char *tasks[opt->nvalues];
39 for (i = 0; i < opt->nvalues; i++) {
40 cfg_t *sec = cfg_opt_getnsec(opt, i);
41 tasks[i] = cfg_title(sec);
42 }
43 qsort(tasks, opt->nvalues, sizeof(const char *), strsort);
44
45 struct simple_string s;
46 simple_string_init(&s);
47 for (i = 0; i < opt->nvalues; i++)
48 ssprintf(&s, "%s\n", tasks[i]);
49 fwup_output(FRAMING_TYPE_SUCCESS, 0, s.str);
50 free(s.str);
51
52 return 0;
53 }
54
55 /**
56 * @brief List out tasks in a firmware update file
57 * @param fw_filename the firmware update filename
58 * @param public_key an option public key if checking signatures
59 * @return 0 if successful
60 */
fwup_list(const char * fw_filename,unsigned char * const * public_keys)61 int fwup_list(const char *fw_filename, unsigned char * const *public_keys)
62 {
63 cfg_t *cfg = NULL;
64 int rc = 0;
65
66 OK_OR_CLEANUP(cfgfile_parse_fw_meta_conf(fw_filename, &cfg, public_keys));
67
68 OK_OR_CLEANUP(list_tasks(cfg));
69
70 cleanup:
71 if (cfg)
72 cfgfile_free(cfg);
73 return rc;
74 }
75