2 * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <sys/types.h>
18 #include <sys/queue.h>
21 #include <sys/syslimits.h>
34 #include "got_error.h"
35 #include "got_object.h"
37 #include "got_lib_delta.h"
38 #include "got_lib_inflate.h"
39 #include "got_lib_object.h"
40 #include "got_lib_object_parse.h"
41 #include "got_lib_privsep.h"
44 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
47 #define GOT_OBJ_TAG_COMMIT "commit"
48 #define GOT_OBJ_TAG_TREE "tree"
49 #define GOT_OBJ_TAG_BLOB "blob"
50 #define GOT_OBJ_TAG_TAG "tag"
52 static volatile sig_atomic_t sigint_received;
55 catch_sigint(int signo)
61 main(int argc, char *argv[])
63 const struct got_error *err = NULL;
64 struct got_object *obj = NULL;
69 signal(SIGINT, catch_sigint);
71 imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
74 /* revoke access to most system calls */
75 if (pledge("stdio recvfd", NULL) == -1) {
76 err = got_error_from_errno("pledge");
77 got_privsep_send_error(&ibuf, err);
83 if (sigint_received) {
84 err = got_error(GOT_ERR_CANCELLED);
88 err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
90 if (err->code == GOT_ERR_PRIVSEP_PIPE)
95 if (imsg.hdr.type == GOT_IMSG_STOP)
98 if (imsg.hdr.type != GOT_IMSG_OBJECT_REQUEST) {
99 err = got_error(GOT_ERR_PRIVSEP_MSG);
103 datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
105 err = got_error(GOT_ERR_PRIVSEP_LEN);
109 err = got_object_read_header(&obj, imsg.fd);
113 err = got_privsep_send_obj(&ibuf, obj);
115 if (close(imsg.fd) != 0 && err == NULL)
116 err = got_error_from_errno("close");
119 got_object_close(obj);
126 if(!sigint_received && err->code != GOT_ERR_PRIVSEP_PIPE) {
127 fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
128 got_privsep_send_error(&ibuf, err);
131 if (close(GOT_IMSG_FD_CHILD) != 0 && err == NULL)
132 err = got_error_from_errno("close");