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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* fetch.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation. See http://www.gnu.org/ for details.
*/
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_state.h"
#include "apk_io.h"
#define FETCH_RECURSIVE 1
#define FETCH_STDOUT 2
#define FETCH_LINK 4
struct fetch_ctx {
unsigned int flags;
const char *outdir;
};
static int fetch_parse(void *ctx, int optch, int optindex, const char *optarg)
{
struct fetch_ctx *fctx = (struct fetch_ctx *) ctx;
switch (optch) {
case 'R':
fctx->flags |= FETCH_RECURSIVE;
break;
case 's':
fctx->flags |= FETCH_STDOUT;
break;
case 'L':
fctx->flags |= FETCH_LINK;
break;
case 'o':
fctx->outdir = optarg;
break;
default:
return -1;
}
return 0;
}
static int fetch_package(struct fetch_ctx *fctx,
struct apk_database *db,
struct apk_package *pkg)
{
struct apk_istream *is;
char infile[256];
char outfile[256];
int i, r, fd;
if (!(fctx->flags & FETCH_STDOUT)) {
struct stat st;
snprintf(outfile, sizeof(outfile), "%s/%s-%s.apk",
fctx->outdir ? fctx->outdir : ".",
pkg->name->name, pkg->version);
if (lstat(outfile, &st) == 0 && st.st_size == pkg->size)
return 0;
}
apk_message("Downloading %s-%s", pkg->name->name, pkg->version);
for (i = 0; i < APK_MAX_REPOS; i++)
if (pkg->repos & BIT(i))
break;
if (i >= APK_MAX_REPOS) {
apk_error("%s-%s: not present in any repository",
pkg->name->name, pkg->version);
return -1;
}
snprintf(infile, sizeof(infile), "%s/%s-%s.apk",
db->repos[i].url, pkg->name->name, pkg->version);
if (fctx->flags & FETCH_STDOUT) {
fd = STDOUT_FILENO;
} else {
if ((fctx->flags & FETCH_LINK) && apk_url_local_file(infile)) {
char real_infile[256];
int n;
n = readlink(infile, real_infile, sizeof(real_infile));
if (n > 0 && n < sizeof(real_infile))
real_infile[n] = '\0';
if (link(real_infile, outfile) == 0)
return 0;
}
fd = creat(outfile, 0644);
if (fd < 0) {
apk_error("%s: %s", outfile, strerror(errno));
return -1;
}
}
is = apk_istream_from_url(infile);
if (is == NULL) {
apk_error("Unable to download '%s'", infile);
return -1;
}
r = apk_istream_splice(is, fd, pkg->size, NULL, NULL);
is->close(is);
if (fd != STDOUT_FILENO)
close(fd);
if (r != pkg->size) {
apk_error("Unable to download '%s'", infile);
unlink(outfile);
return -1;
}
return 0;
}
static int fetch_main(void *ctx, int argc, char **argv)
{
struct fetch_ctx *fctx = (struct fetch_ctx *) ctx;
struct apk_database db;
int i, j, r;
r = apk_db_open(&db, apk_root, APK_OPENF_EMPTY_STATE);
if (r != 0)
return r;
for (i = 0; i < argc; i++) {
struct apk_dependency dep = (struct apk_dependency) {
.name = apk_db_get_name(&db, APK_BLOB_STR(argv[i])),
.result_mask = APK_DEPMASK_REQUIRE,
};
if (fctx->flags & FETCH_RECURSIVE) {
struct apk_state *state;
struct apk_change *change;
state = apk_state_new(&db);
r = apk_state_lock_dependency(state, &dep);
if (r != 0) {
apk_state_unref(state);
apk_error("Unable to install '%s'",
dep.name->name);
goto err;
}
list_for_each_entry(change, &state->change_list_head, change_list) {
r = fetch_package(fctx, &db, change->newpkg);
if (r != 0)
goto err;
}
apk_state_unref(state);
} else if (dep.name->pkgs != NULL) {
struct apk_package *pkg = NULL;
for (j = 0; j < dep.name->pkgs->num; j++)
if (pkg == NULL ||
apk_version_compare(APK_BLOB_STR(dep.name->pkgs->item[j]->version),
APK_BLOB_STR(pkg->version))
== APK_VERSION_GREATER)
pkg = dep.name->pkgs->item[j];
r = fetch_package(fctx, &db, pkg);
if (r != 0)
goto err;
} else {
apk_message("Unable to get '%s'", dep.name->name);
r = -1;
break;
}
}
err:
apk_db_close(&db);
return r;
}
static struct option fetch_options[] = {
{ "recursive", no_argument, NULL, 'R' },
{ "stdout", no_argument, NULL, 's' },
{ "link", no_argument, NULL, 'L' },
{ "output", required_argument, NULL, 'o' },
};
static struct apk_applet apk_fetch = {
.name = "fetch",
.usage = "[-R|--recursive|--stdout] [-L|--link] [-o|--output DIR]\n"
"\t\t PACKAGE...",
.context_size = sizeof(struct fetch_ctx),
.num_options = ARRAY_SIZE(fetch_options),
.options = fetch_options,
.parse = fetch_parse,
.main = fetch_main,
};
APK_DEFINE_APPLET(apk_fetch);
|
