2 ad242220 2018-09-08 stsp * Copyright (c) 2018 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 ad242220 2018-09-08 stsp #include <sys/limits.h>
23 ad242220 2018-09-08 stsp #include <stdint.h>
24 ad242220 2018-09-08 stsp #include <imsg.h>
25 ad242220 2018-09-08 stsp #include <stdio.h>
26 ad242220 2018-09-08 stsp #include <stdlib.h>
27 ad242220 2018-09-08 stsp #include <string.h>
28 ad242220 2018-09-08 stsp #include <sha1.h>
29 ad242220 2018-09-08 stsp #include <zlib.h>
31 ad242220 2018-09-08 stsp #include "got_error.h"
32 ad242220 2018-09-08 stsp #include "got_object.h"
34 ad242220 2018-09-08 stsp #include "got_lib_delta.h"
35 ad242220 2018-09-08 stsp #include "got_lib_inflate.h"
36 ad242220 2018-09-08 stsp #include "got_lib_object.h"
37 ad242220 2018-09-08 stsp #include "got_lib_object_parse.h"
38 ad242220 2018-09-08 stsp #include "got_lib_privsep.h"
41 ad242220 2018-09-08 stsp main(int argc, char *argv[])
43 ad242220 2018-09-08 stsp const struct got_error *err = NULL;
44 ad242220 2018-09-08 stsp struct imsgbuf ibuf;
45 ad242220 2018-09-08 stsp size_t datalen;
47 ad242220 2018-09-08 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
49 ad242220 2018-09-08 stsp /* revoke access to most system calls */
50 ad242220 2018-09-08 stsp if (pledge("stdio recvfd", NULL) == -1) {
51 ad242220 2018-09-08 stsp err = got_error_from_errno();
52 ad242220 2018-09-08 stsp got_privsep_send_error(&ibuf, err);
57 ad242220 2018-09-08 stsp struct imsg imsg, imsg_outfd;
58 ad242220 2018-09-08 stsp FILE *f = NULL;
59 ad242220 2018-09-08 stsp size_t size;
61 ad242220 2018-09-08 stsp imsg.fd = -1;
62 ad242220 2018-09-08 stsp imsg_outfd.fd = -1;
64 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
66 ad242220 2018-09-08 stsp if (imsg.hdr.len == 0)
71 ad242220 2018-09-08 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
74 ad242220 2018-09-08 stsp if (imsg.hdr.type != GOT_IMSG_BLOB_REQUEST) {
75 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
79 ad242220 2018-09-08 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
80 ad242220 2018-09-08 stsp if (datalen != 0) {
81 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
84 ad242220 2018-09-08 stsp if (imsg.fd == -1) {
85 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_NO_FD);
89 ad242220 2018-09-08 stsp err = got_privsep_recv_imsg(&imsg_outfd, &ibuf, 0);
91 ad242220 2018-09-08 stsp if (imsg.hdr.len == 0)
96 ad242220 2018-09-08 stsp if (imsg_outfd.hdr.type == GOT_IMSG_STOP)
99 ad242220 2018-09-08 stsp if (imsg_outfd.hdr.type != GOT_IMSG_BLOB_OUTFD) {
100 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
104 ad242220 2018-09-08 stsp datalen = imsg_outfd.hdr.len - IMSG_HEADER_SIZE;
105 ad242220 2018-09-08 stsp if (datalen != 0) {
106 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
109 ad242220 2018-09-08 stsp if (imsg_outfd.fd == -1) {
110 ad242220 2018-09-08 stsp err = got_error(GOT_ERR_PRIVSEP_NO_FD);
114 ad242220 2018-09-08 stsp f = fdopen(imsg.fd, "rb");
115 ad242220 2018-09-08 stsp if (f == NULL) {
116 ad242220 2018-09-08 stsp err = got_error_from_errno();
120 ad242220 2018-09-08 stsp err = got_inflate_to_fd(&size, f, imsg_outfd.fd);
124 ad242220 2018-09-08 stsp err = got_privsep_send_blob(&ibuf, size);
128 ad242220 2018-09-08 stsp else if (imsg.fd != -1)
129 ad242220 2018-09-08 stsp close(imsg.fd);
130 ad242220 2018-09-08 stsp if (imsg_outfd.fd != -1)
131 ad242220 2018-09-08 stsp close(imsg_outfd.fd);
132 ad242220 2018-09-08 stsp imsg_free(&imsg);
133 ad242220 2018-09-08 stsp imsg_free(&imsg_outfd);
135 ad242220 2018-09-08 stsp got_privsep_send_error(&ibuf, err);
140 ad242220 2018-09-08 stsp imsg_clear(&ibuf);
142 ad242220 2018-09-08 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
143 ad242220 2018-09-08 stsp close(GOT_IMSG_FD_CHILD);
144 ad242220 2018-09-08 stsp return err ? 1 : 0;