2 5aa81393 2020-01-06 stsp * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 ad242220 2018-09-08 stsp * Permission to use, copy, modify, and distribute this software for any
5 ad242220 2018-09-08 stsp * purpose with or without fee is hereby granted, provided that the above
6 ad242220 2018-09-08 stsp * copyright notice and this permission notice appear in all copies.
8 ad242220 2018-09-08 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 ad242220 2018-09-08 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 ad242220 2018-09-08 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 ad242220 2018-09-08 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 ad242220 2018-09-08 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 ad242220 2018-09-08 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 ad242220 2018-09-08 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 ad242220 2018-09-08 stsp #include <sys/types.h>
18 ad242220 2018-09-08 stsp #include <sys/queue.h>
19 ad242220 2018-09-08 stsp #include <sys/uio.h>
20 ad242220 2018-09-08 stsp #include <sys/time.h>
21 876c234b 2018-09-10 stsp #include <sys/syslimits.h>
23 ad242220 2018-09-08 stsp #include <stdint.h>
24 ad242220 2018-09-08 stsp #include <imsg.h>
25 12ce7a6c 2019-08-12 stsp #include <limits.h>
26 99437157 2018-11-11 stsp #include <signal.h>
27 ad242220 2018-09-08 stsp #include <stdio.h>
28 ad242220 2018-09-08 stsp #include <stdlib.h>
29 ad242220 2018-09-08 stsp #include <string.h>
30 ad242220 2018-09-08 stsp #include <sha1.h>
31 ad242220 2018-09-08 stsp #include <zlib.h>
33 ad242220 2018-09-08 stsp #include "got_error.h"
34 ad242220 2018-09-08 stsp #include "got_object.h"
35 3022d272 2019-11-14 stsp #include "got_path.h"
37 ad242220 2018-09-08 stsp #include "got_lib_delta.h"
38 ad242220 2018-09-08 stsp #include "got_lib_inflate.h"
39 ad242220 2018-09-08 stsp #include "got_lib_object.h"
40 ad242220 2018-09-08 stsp #include "got_lib_object_parse.h"
41 ad242220 2018-09-08 stsp #include "got_lib_privsep.h"
43 99437157 2018-11-11 stsp static volatile sig_atomic_t sigint_received;
46 99437157 2018-11-11 stsp catch_sigint(int signo)
48 99437157 2018-11-11 stsp sigint_received = 1;
51 ad242220 2018-09-08 stsp static const struct got_error *
52 3022d272 2019-11-14 stsp read_tree_object(struct got_pathlist_head *entries, int *nentries,
53 3022d272 2019-11-14 stsp uint8_t **p, FILE *f)
55 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
56 13c729f7 2018-12-24 stsp struct got_object *obj;
59 6fb3a497 2020-03-18 stsp err = got_inflate_to_mem(p, &len, NULL, f);
63 3022d272 2019-11-14 stsp err = got_object_parse_header(&obj, *p, len);
67 ad242220 2018-09-08 stsp if (len < obj->hdrlen + obj->size) {
68 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
72 ad242220 2018-09-08 stsp /* Skip object header. */
73 ad242220 2018-09-08 stsp len -= obj->hdrlen;
74 3022d272 2019-11-14 stsp err = got_object_parse_tree(entries, nentries, *p + obj->hdrlen, len);
76 13c729f7 2018-12-24 stsp got_object_close(obj);
81 ad242220 2018-09-08 stsp main(int argc, char *argv[])
83 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
84 ad242220 2018-09-08 stsp struct imsgbuf ibuf;
86 99437157 2018-11-11 stsp signal(SIGINT, catch_sigint);
88 ad242220 2018-09-08 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
90 2ff12563 2018-09-15 stsp #ifndef PROFILE
91 ad242220 2018-09-08 stsp /* revoke access to most system calls */
92 ad242220 2018-09-08 stsp if (pledge("stdio recvfd", NULL) == -1) {
93 638f9024 2019-05-13 stsp err = got_error_from_errno("pledge");
94 ad242220 2018-09-08 stsp got_privsep_send_error(&ibuf, err);
100 ad242220 2018-09-08 stsp struct imsg imsg;
101 ad242220 2018-09-08 stsp FILE *f = NULL;
102 3022d272 2019-11-14 stsp struct got_pathlist_head entries;
103 3022d272 2019-11-14 stsp int nentries = 0;
104 3022d272 2019-11-14 stsp uint8_t *buf = NULL;
106 3022d272 2019-11-14 stsp TAILQ_INIT(&entries);
108 99437157 2018-11-11 stsp if (sigint_received) {
109 99437157 2018-11-11 stsp err = got_error(GOT_ERR_CANCELLED);
113 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
115 876c234b 2018-09-10 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
116 ad242220 2018-09-08 stsp err = NULL;
120 ad242220 2018-09-08 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
123 ad242220 2018-09-08 stsp if (imsg.hdr.type != GOT_IMSG_TREE_REQUEST) {
124 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
128 ad242220 2018-09-08 stsp if (imsg.fd == -1) {
129 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_NO_FD);
133 ad242220 2018-09-08 stsp /* Always assume file offset zero. */
134 ad242220 2018-09-08 stsp f = fdopen(imsg.fd, "rb");
135 ad242220 2018-09-08 stsp if (f == NULL) {
136 638f9024 2019-05-13 stsp err = got_error_from_errno("fdopen");
140 3022d272 2019-11-14 stsp err = read_tree_object(&entries, &nentries, &buf, f);
144 3022d272 2019-11-14 stsp err = got_privsep_send_tree(&ibuf, &entries, nentries);
146 b87b4170 2020-01-06 stsp got_object_parsed_tree_entries_free(&entries);
149 fb43ecf1 2019-02-11 stsp if (fclose(f) != 0 && err == NULL)
150 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
151 3a6ce05a 2019-02-11 stsp } else if (imsg.fd != -1) {
152 3a6ce05a 2019-02-11 stsp if (close(imsg.fd) != 0 && err == NULL)
153 638f9024 2019-05-13 stsp err = got_error_from_errno("close");
155 ad242220 2018-09-08 stsp imsg_free(&imsg);
160 ad242220 2018-09-08 stsp imsg_clear(&ibuf);
162 80d5f134 2018-11-11 stsp if (!sigint_received && err->code != GOT_ERR_PRIVSEP_PIPE) {
163 80d5f134 2018-11-11 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
164 99437157 2018-11-11 stsp got_privsep_send_error(&ibuf, err);
167 3a6ce05a 2019-02-11 stsp if (close(GOT_IMSG_FD_CHILD) != 0 && err == NULL)
168 638f9024 2019-05-13 stsp err = got_error_from_errno("close");
169 ad242220 2018-09-08 stsp return err ? 1 : 0;
