Merge branch 'master' of git://git.denx.de/u-boot
[platform/kernel/u-boot.git] / tools / imagetool.c
1 /*
2  * (C) Copyright 2013
3  *
4  * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
5  *
6  * SPDX-License-Identifier:     GPL-2.0+
7  */
8
9 #include "imagetool.h"
10
11 #include <image.h>
12
13 struct image_type_params *imagetool_get_type(int type)
14 {
15         struct image_type_params **curr;
16         INIT_SECTION(image_type);
17
18         struct image_type_params **start = __start_image_type;
19         struct image_type_params **end = __stop_image_type;
20
21         for (curr = start; curr != end; curr++) {
22                 if ((*curr)->check_image_type) {
23                         if (!(*curr)->check_image_type(type))
24                                 return *curr;
25                 }
26         }
27         return NULL;
28 }
29
30 int imagetool_verify_print_header(
31         void *ptr,
32         struct stat *sbuf,
33         struct image_type_params *tparams,
34         struct image_tool_params *params)
35 {
36         int retval = -1;
37         struct image_type_params **curr;
38         INIT_SECTION(image_type);
39
40         struct image_type_params **start = __start_image_type;
41         struct image_type_params **end = __stop_image_type;
42
43         for (curr = start; curr != end; curr++) {
44                 if ((*curr)->verify_header) {
45                         retval = (*curr)->verify_header((unsigned char *)ptr,
46                                                      sbuf->st_size, params);
47
48                         if (retval == 0) {
49                                 /*
50                                  * Print the image information  if verify is
51                                  * successful
52                                  */
53                                 if ((*curr)->print_header) {
54                                         if (!params->quiet)
55                                                 (*curr)->print_header(ptr);
56                                 } else {
57                                         fprintf(stderr,
58                                                 "%s: print_header undefined for %s\n",
59                                                 params->cmdname, (*curr)->name);
60                                 }
61                                 break;
62                         }
63                 }
64         }
65
66         return retval;
67 }
68
69 int imagetool_save_subimage(
70         const char *file_name,
71         ulong file_data,
72         ulong file_len)
73 {
74         int dfd;
75
76         dfd = open(file_name, O_RDWR | O_CREAT | O_TRUNC | O_BINARY,
77                    S_IRUSR | S_IWUSR);
78         if (dfd < 0) {
79                 fprintf(stderr, "Can't open \"%s\": %s\n",
80                         file_name, strerror(errno));
81                 return -1;
82         }
83
84         if (write(dfd, (void *)file_data, file_len) != (ssize_t)file_len) {
85                 fprintf(stderr, "Write error on \"%s\": %s\n",
86                         file_name, strerror(errno));
87                 close(dfd);
88                 return -1;
89         }
90
91         close(dfd);
92
93         return 0;
94 }
95
96 int imagetool_get_filesize(struct image_tool_params *params, const char *fname)
97 {
98         struct stat sbuf;
99         int fd;
100
101         fd = open(fname, O_RDONLY | O_BINARY);
102         if (fd < 0) {
103                 fprintf(stderr, "%s: Can't open %s: %s\n",
104                         params->cmdname, fname, strerror(errno));
105                 return -1;
106         }
107
108         if (fstat(fd, &sbuf) < 0) {
109                 fprintf(stderr, "%s: Can't stat %s: %s\n",
110                         params->cmdname, fname, strerror(errno));
111                 close(fd);
112                 return -1;
113         }
114         close(fd);
115
116         return sbuf.st_size;
117 }