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
|
/* pkg_extract.c - the itsy package management system
Carl D. Worth
Copyright (C) 2001 University of Southern California
This program 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 2, or (at
your option) any later version.
This program 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.
*/
#include "ipkg.h"
#include <errno.h>
#include "pkg_extract.h"
#include "libbb/libbb.h"
#include "file_util.h"
#include "sprintf_alloc.h"
/* assuage libb functions */
const char *applet_name = "ipkg";
int pkg_extract_control_file_to_stream(pkg_t *pkg, FILE *stream)
{
char *buffer = deb_extract(pkg->local_filename, stderr,
extract_control_tar_gz
| extract_one_to_buffer,
NULL, "./control");
if (buffer == NULL) {
return EINVAL;
}
/* XXX: QUESTION: Is there a way to do this directly with deb_extract now? */
fputs(buffer, stream);
free(buffer);
return 0;
}
int pkg_extract_control_files_to_dir(pkg_t *pkg, const char *dir)
{
return pkg_extract_control_files_to_dir_with_prefix(pkg, dir, "");
}
int pkg_extract_control_files_to_dir_with_prefix(pkg_t *pkg,
const char *dir,
const char *prefix)
{
char *dir_with_prefix;
sprintf_alloc(&dir_with_prefix, "%s/%s", dir, prefix);
deb_extract(pkg->local_filename, stderr,
extract_control_tar_gz
| extract_all_to_fs| extract_preserve_date
| extract_unconditional,
dir_with_prefix, NULL);
free(dir_with_prefix);
/* XXX: BUG: how do we know if deb_extract worked or not? This is
a defect in the current deb_extract from what I can tell.
Once this is fixed, audit all calls to deb_extract. */
return 0;
}
int pkg_extract_data_files_to_dir(pkg_t *pkg, const char *dir)
{
deb_extract(pkg->local_filename, stderr,
extract_data_tar_gz
| extract_all_to_fs| extract_preserve_date
| extract_unconditional,
dir, NULL);
/* BUG: How do we know if deb_extract worked or not? This is a
defect in the current deb_extract from what I can tell. */
return 0;
}
int pkg_extract_data_file_names_to_file(pkg_t *pkg, const char *file_name)
{
int err=0;
char *line, *data_file;
FILE *file;
FILE *tmp;
file = fopen(file_name, "w");
if (file == NULL) {
fprintf(stderr, "%s: ERROR: Failed to open %s for writing.\n",
__FUNCTION__, file_name);
return EINVAL;
}
tmp = tmpfile();
if (pkg->installed_files) {
str_list_elt_t *elt;
for (elt = pkg->installed_files->head; elt; elt = elt->next) {
fprintf(file, "%s\n", elt->data);
}
} else {
err = pkg_extract_data_file_names_to_stream(pkg, tmp);
if (err) {
fclose(file);
fclose(tmp);
return err;
}
/* Fixup data file names by removing the initial '.' */
rewind(tmp);
while (1) {
line = file_read_line_alloc(tmp);
if (line == NULL) {
break;
}
data_file = line;
if (*data_file == '.') {
data_file++;
}
if (*data_file != '/') {
fputs("/", file);
}
/* I have no idea why, but this is what dpkg does */
if (strcmp(data_file, "/\n") == 0) {
fputs("/.\n", file);
} else {
fputs(data_file, file);
}
}
}
fclose(tmp);
fclose(file);
return err;
}
int pkg_extract_data_file_names_to_stream(pkg_t *pkg, FILE *file)
{
/* XXX: DPKG_INCOMPATIBILITY: deb_extract will extract all of the
data file names with a '.' as the first character. I've taught
ipkg how to cope with the presence or absence of the '.', but
this may trip up dpkg.
For all I know, this could actually be a bug in ipkg-build. So,
I'll have to try installing some .debs and comparing the *.list
files.
If we wanted to, we could workaround the deb_extract behavior
right here, by writing to a tmpfile, then munging things as we
wrote to the actual stream. */
deb_extract(pkg->local_filename, file,
extract_quiet | extract_data_tar_gz | extract_list,
NULL, NULL);
/* BUG: How do we know if deb_extract worked or not? This is a
defect in the current deb_extract from what I can tell. */
return 0;
}
|
