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
|
/*
* Copyright (C) 2023 Patrick McDermott
*
* This file is part of opkg-opkg.
*
* opkg-opkg is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* opkg-opkg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with opkg-opkg. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../defs.h"
#include "../dirent.h"
#include "../gzip.h"
#include "../i18n.h"
#include "../opk.h"
#include "../ustar.h"
#include "opk.h"
static int
_opkg_opk_opk_write_file(void *user_data, size_t size)
{
struct opkg_opk_opk *opk = user_data;
if (fwrite(opk->file_buffer, 1, size, opk->file) == size) {
return OPKG_OPK_OK;
} else {
return OPKG_OPK_ERROR;
}
}
static int
_opkg_opk_opk_source_date_epoch(uint64_t *mtime)
{
char *env;
char *end;
env = getenv("SOURCE_DATE_EPOCH");
if (env == NULL) {
return OPKG_OPK_ERROR;
}
*mtime = strtol(env, &end, 10);
if (*end != '\0') {
return OPKG_OPK_ERROR;
}
return OPKG_OPK_OK;
}
int
opkg_opk_opk_write(struct opkg_opk_opk *opk, const char *file_name)
{
int ret;
uint64_t mtime;
struct opkg_opk_dirent dirent;
char *buffer;
size_t size;
ret = OPKG_OPK_OK;
if (_opkg_opk_opk_source_date_epoch(&mtime) == OPKG_OPK_ERROR) {
fputs(_("Error: Missing or invalid SOURCE_DATE_EPOCH\n"),
stderr);
ret = OPKG_OPK_ERROR;
goto out0;
}
/* Open outer archive. */
opk->file = fopen(file_name, "wb");
if (opk->file == NULL) {
fprintf(stderr, _("Error: Failed to open file \"%s\"\n"),
file_name);
ret = OPKG_OPK_ERROR;
goto out0;
}
/* Initialize outer gzip decompressor. */
opk->outer_gzip = opkg_opk_gzip_init_write(&_opkg_opk_opk_write_file,
opk);
if (opk->outer_gzip == NULL) {
fputs(_("Error: Failed to initialize\n"), stderr);
ret = OPKG_OPK_ERROR;
goto out1;
}
opkg_opk_gzip_set_write_buffer(opk->outer_gzip, opk->file_buffer,
sizeof(opk->file_buffer));
/* Initialize outer ustar unarchiver. */
opk->outer_ustar = opkg_opk_ustar_init(opk->outer_gzip);
if (opk->outer_ustar == NULL) {
fputs(_("Error: Failed to initialize\n"), stderr);
ret = OPKG_OPK_ERROR;
goto out2;
}
/* Write version file. */
dirent.name = "debian-binary";
dirent.parent = NULL;
if (opkg_opk_ustar_write_header(opk->outer_ustar, &dirent, 0644,
0, getpwuid(0)->pw_name,
0, getgrgid(0)->gr_name,
4, mtime, '-', NULL) != OPKG_OPK_OK) {
fputs(_("Error: Failed to write header\n"), stderr);
ret = OPKG_OPK_ERROR;
goto out3;
}
opkg_opk_ustar_get_buffer(opk->outer_ustar, &buffer, &size);
memcpy(buffer, "2.0\n", 4);
if (opkg_opk_ustar_write_data(opk->outer_ustar, 4) != OPKG_OPK_OK) {
fputs(_("Error: Failed to write data\n"), stderr);
ret = OPKG_OPK_ERROR;
goto out3;
}
/* TODO: control.tar.gz and data.tar.gz */
/* Write trailer. */
if (opkg_opk_ustar_write_trailer(opk->outer_ustar) != OPKG_OPK_OK) {
fputs(_("Error: Failed to write trailer\n"), stderr);
ret = OPKG_OPK_ERROR;
goto out3;
}
out3:
opkg_opk_ustar_free(opk->outer_ustar);
out2:
opkg_opk_gzip_free(opk->outer_gzip);
out1:
fclose(opk->file);
out0:
return ret;
}
|
