2 6a800804 2022-10-13 stsp * Copyright (c) 2019, 2022 Stefan Sperling <stsp@openbsd.org>
4 6a800804 2022-10-13 stsp * Permission to use, copy, modify, and distribute this software for any
5 6a800804 2022-10-13 stsp * purpose with or without fee is hereby granted, provided that the above
6 6a800804 2022-10-13 stsp * copyright notice and this permission notice appear in all copies.
8 6a800804 2022-10-13 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 6a800804 2022-10-13 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 6a800804 2022-10-13 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 6a800804 2022-10-13 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 6a800804 2022-10-13 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 6a800804 2022-10-13 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 6a800804 2022-10-13 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 1b3e8e86 2022-11-08 stsp #include <sys/time.h>
18 6a800804 2022-10-13 stsp #include <sys/types.h>
19 6a800804 2022-10-13 stsp #include <sys/tree.h>
20 6a800804 2022-10-13 stsp #include <sys/socket.h>
21 6a800804 2022-10-13 stsp #include <sys/queue.h>
22 6a800804 2022-10-13 stsp #include <sys/uio.h>
24 6a800804 2022-10-13 stsp #include <errno.h>
25 6a800804 2022-10-13 stsp #include <fcntl.h>
26 6a800804 2022-10-13 stsp #include <limits.h>
27 6a800804 2022-10-13 stsp #include <sha1.h>
28 69c6accf 2023-02-04 op #include <sha2.h>
29 6a800804 2022-10-13 stsp #include <stdio.h>
30 6a800804 2022-10-13 stsp #include <stdlib.h>
31 6a800804 2022-10-13 stsp #include <stdint.h>
32 6a800804 2022-10-13 stsp #include <imsg.h>
33 6a800804 2022-10-13 stsp #include <unistd.h>
35 6a800804 2022-10-13 stsp #include "got_error.h"
36 6a800804 2022-10-13 stsp #include "got_object.h"
37 6a800804 2022-10-13 stsp #include "got_repository.h"
38 6a800804 2022-10-13 stsp #include "got_path.h"
40 6a800804 2022-10-13 stsp #include "got_lib_delta.h"
41 6a800804 2022-10-13 stsp #include "got_lib_object.h"
42 6a800804 2022-10-13 stsp #include "got_lib_object_cache.h"
43 6a800804 2022-10-13 stsp #include "got_lib_privsep.h"
44 6a800804 2022-10-13 stsp #include "got_lib_pack.h"
45 6a800804 2022-10-13 stsp #include "got_lib_repository.h"
47 6a800804 2022-10-13 stsp const struct got_error *
48 6a800804 2022-10-13 stsp got_repo_read_gitconfig(int *gitconfig_repository_format_version,
49 6a800804 2022-10-13 stsp char **gitconfig_author_name, char **gitconfig_author_email,
50 6a800804 2022-10-13 stsp struct got_remote_repo **remotes, int *nremotes,
51 92db0871 2023-02-04 op char **gitconfig_owner, char **object_format,
52 92db0871 2023-02-04 op char ***extensions, int *nextensions,
53 6a800804 2022-10-13 stsp const char *gitconfig_path)
55 6a800804 2022-10-13 stsp const struct got_error *err = NULL, *child_err = NULL;
56 6a800804 2022-10-13 stsp int fd = -1;
57 6a800804 2022-10-13 stsp int imsg_fds[2] = { -1, -1 };
59 6a800804 2022-10-13 stsp struct imsgbuf *ibuf;
61 6a800804 2022-10-13 stsp *gitconfig_repository_format_version = 0;
62 6a800804 2022-10-13 stsp if (extensions)
63 6a800804 2022-10-13 stsp *extensions = NULL;
64 6a800804 2022-10-13 stsp if (nextensions)
65 6a800804 2022-10-13 stsp *nextensions = 0;
66 6a800804 2022-10-13 stsp *gitconfig_author_name = NULL;
67 6a800804 2022-10-13 stsp *gitconfig_author_email = NULL;
68 6a800804 2022-10-13 stsp if (remotes)
69 6a800804 2022-10-13 stsp *remotes = NULL;
70 6a800804 2022-10-13 stsp if (nremotes)
71 6a800804 2022-10-13 stsp *nremotes = 0;
72 6a800804 2022-10-13 stsp if (gitconfig_owner)
73 6a800804 2022-10-13 stsp *gitconfig_owner = NULL;
74 92db0871 2023-02-04 op if (object_format)
75 92db0871 2023-02-04 op *object_format = NULL;
77 6a800804 2022-10-13 stsp fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
78 6a800804 2022-10-13 stsp if (fd == -1) {
79 6a800804 2022-10-13 stsp if (errno == ENOENT)
80 6a800804 2022-10-13 stsp return NULL;
81 6a800804 2022-10-13 stsp return got_error_from_errno2("open", gitconfig_path);
84 6a800804 2022-10-13 stsp ibuf = calloc(1, sizeof(*ibuf));
85 6a800804 2022-10-13 stsp if (ibuf == NULL) {
86 6a800804 2022-10-13 stsp err = got_error_from_errno("calloc");
90 6a800804 2022-10-13 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
91 6a800804 2022-10-13 stsp err = got_error_from_errno("socketpair");
95 6a800804 2022-10-13 stsp pid = fork();
96 6a800804 2022-10-13 stsp if (pid == -1) {
97 6a800804 2022-10-13 stsp err = got_error_from_errno("fork");
99 6a800804 2022-10-13 stsp } else if (pid == 0) {
100 6a800804 2022-10-13 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
101 6a800804 2022-10-13 stsp gitconfig_path);
102 6a800804 2022-10-13 stsp /* not reached */
105 6a800804 2022-10-13 stsp if (close(imsg_fds[1]) == -1) {
106 6a800804 2022-10-13 stsp err = got_error_from_errno("close");
109 6a800804 2022-10-13 stsp imsg_fds[1] = -1;
110 6a800804 2022-10-13 stsp imsg_init(ibuf, imsg_fds[0]);
112 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
117 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
121 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_int(
122 6a800804 2022-10-13 stsp gitconfig_repository_format_version, ibuf);
126 6a800804 2022-10-13 stsp if (extensions && nextensions) {
127 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_repository_extensions_req(
131 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
134 6a800804 2022-10-13 stsp if (*nextensions > 0) {
136 6a800804 2022-10-13 stsp *extensions = calloc(*nextensions, sizeof(char *));
137 6a800804 2022-10-13 stsp if (*extensions == NULL) {
138 6a800804 2022-10-13 stsp err = got_error_from_errno("calloc");
141 6a800804 2022-10-13 stsp for (i = 0; i < *nextensions; i++) {
143 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_str(&ext,
147 6a800804 2022-10-13 stsp (*extensions)[i] = ext;
152 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_author_name_req(ibuf);
156 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
160 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_author_email_req(ibuf);
164 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
168 6a800804 2022-10-13 stsp if (remotes && nremotes) {
169 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_remotes_req(ibuf);
173 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_remotes(remotes,
174 6a800804 2022-10-13 stsp nremotes, ibuf);
179 6a800804 2022-10-13 stsp if (gitconfig_owner) {
180 6a800804 2022-10-13 stsp err = got_privsep_send_gitconfig_owner_req(ibuf);
183 6a800804 2022-10-13 stsp err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
188 6a800804 2022-10-13 stsp err = got_privsep_send_stop(imsg_fds[0]);
189 6a800804 2022-10-13 stsp child_err = got_privsep_wait_for_child(pid);
190 6a800804 2022-10-13 stsp if (child_err && err == NULL)
191 6a800804 2022-10-13 stsp err = child_err;
193 6a800804 2022-10-13 stsp if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
194 6a800804 2022-10-13 stsp err = got_error_from_errno("close");
195 6a800804 2022-10-13 stsp if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
196 6a800804 2022-10-13 stsp err = got_error_from_errno("close");
197 6a800804 2022-10-13 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
198 6a800804 2022-10-13 stsp err = got_error_from_errno2("close", gitconfig_path);
199 6a800804 2022-10-13 stsp free(ibuf);
200 6a800804 2022-10-13 stsp return err;