op public repos

Blame

Date:: Sun Feb 5 16:52:50 2023 UTC
Message:: got-read-gitconfig: send key-value pairs for extensions Most extension allow only for a boolean value so the current behaviour of just sending the extension with a trueish value is fine. However, some extensions that we could eventually support (like "objectformat") have a string value. This is a preparatory step towards that. ok stsp@
Actions:: History | Blob | Raw File
  1 6a800804 2022-10-13 stsp /*
  2 6a800804 2022-10-13 stsp  * Copyright (c) 2019, 2022 Stefan Sperling <stsp@openbsd.org>
  3 6a800804 2022-10-13 stsp  *
  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.
  7 6a800804 2022-10-13 stsp  *
  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.
 15 6a800804 2022-10-13 stsp  */
 16 6a800804 2022-10-13 stsp 
 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>
 23 6a800804 2022-10-13 stsp 
 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 6a800804 2022-10-13 stsp #include <stdio.h>
 29 6a800804 2022-10-13 stsp #include <stdlib.h>
 30 6a800804 2022-10-13 stsp #include <stdint.h>
 31 6a800804 2022-10-13 stsp #include <imsg.h>
 32 6a800804 2022-10-13 stsp #include <unistd.h>
 33 6a800804 2022-10-13 stsp 
 34 6a800804 2022-10-13 stsp #include "got_error.h"
 35 6a800804 2022-10-13 stsp #include "got_object.h"
 36 6a800804 2022-10-13 stsp #include "got_repository.h"
 37 6a800804 2022-10-13 stsp #include "got_path.h"
 38 6a800804 2022-10-13 stsp 
 39 6a800804 2022-10-13 stsp #include "got_lib_delta.h"
 40 6a800804 2022-10-13 stsp #include "got_lib_object.h"
 41 6a800804 2022-10-13 stsp #include "got_lib_object_cache.h"
 42 6a800804 2022-10-13 stsp #include "got_lib_privsep.h"
 43 6a800804 2022-10-13 stsp #include "got_lib_pack.h"
 44 6a800804 2022-10-13 stsp #include "got_lib_repository.h"
 45 6a800804 2022-10-13 stsp 
 46 6a800804 2022-10-13 stsp const struct got_error *
 47 6a800804 2022-10-13 stsp got_repo_read_gitconfig(int *gitconfig_repository_format_version,
 48 6a800804 2022-10-13 stsp     char **gitconfig_author_name, char **gitconfig_author_email,
 49 6a800804 2022-10-13 stsp     struct got_remote_repo **remotes, int *nremotes,
 50 27749ea2 2023-02-05 op     char **gitconfig_owner, char ***extnames, char ***extvals,
 51 27749ea2 2023-02-05 op     int *nextensions, const char *gitconfig_path)
 52 6a800804 2022-10-13 stsp {
 53 6a800804 2022-10-13 stsp 	const struct got_error *err = NULL, *child_err = NULL;
 54 6a800804 2022-10-13 stsp 	int fd = -1;
 55 6a800804 2022-10-13 stsp 	int imsg_fds[2] = { -1, -1 };
 56 6a800804 2022-10-13 stsp 	pid_t pid;
 57 6a800804 2022-10-13 stsp 	struct imsgbuf *ibuf;
 58 6a800804 2022-10-13 stsp 
 59 6a800804 2022-10-13 stsp 	*gitconfig_repository_format_version = 0;
 60 27749ea2 2023-02-05 op 	if (extnames)
 61 27749ea2 2023-02-05 op 		*extnames = NULL;
 62 27749ea2 2023-02-05 op 	if (extvals)
 63 27749ea2 2023-02-05 op 		*extvals = 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 6a800804 2022-10-13 stsp 
 75 6a800804 2022-10-13 stsp 	fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
 76 6a800804 2022-10-13 stsp 	if (fd == -1) {
 77 6a800804 2022-10-13 stsp 		if (errno == ENOENT)
 78 6a800804 2022-10-13 stsp 			return NULL;
 79 6a800804 2022-10-13 stsp 		return got_error_from_errno2("open", gitconfig_path);
 80 6a800804 2022-10-13 stsp 	}
 81 6a800804 2022-10-13 stsp 
 82 6a800804 2022-10-13 stsp 	ibuf = calloc(1, sizeof(*ibuf));
 83 6a800804 2022-10-13 stsp 	if (ibuf == NULL) {
 84 6a800804 2022-10-13 stsp 		err = got_error_from_errno("calloc");
 85 6a800804 2022-10-13 stsp 		goto done;
 86 6a800804 2022-10-13 stsp 	}
 87 6a800804 2022-10-13 stsp 
 88 6a800804 2022-10-13 stsp 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
 89 6a800804 2022-10-13 stsp 		err = got_error_from_errno("socketpair");
 90 6a800804 2022-10-13 stsp 		goto done;
 91 6a800804 2022-10-13 stsp 	}
 92 6a800804 2022-10-13 stsp 
 93 6a800804 2022-10-13 stsp 	pid = fork();
 94 6a800804 2022-10-13 stsp 	if (pid == -1) {
 95 6a800804 2022-10-13 stsp 		err = got_error_from_errno("fork");
 96 6a800804 2022-10-13 stsp 		goto done;
 97 6a800804 2022-10-13 stsp 	} else if (pid == 0) {
 98 6a800804 2022-10-13 stsp 		got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
 99 6a800804 2022-10-13 stsp 		    gitconfig_path);
100 6a800804 2022-10-13 stsp 		/* not reached */
101 6a800804 2022-10-13 stsp 	}
102 6a800804 2022-10-13 stsp 
103 6a800804 2022-10-13 stsp 	if (close(imsg_fds[1]) == -1) {
104 6a800804 2022-10-13 stsp 		err = got_error_from_errno("close");
105 6a800804 2022-10-13 stsp 		goto done;
106 6a800804 2022-10-13 stsp 	}
107 6a800804 2022-10-13 stsp 	imsg_fds[1] = -1;
108 6a800804 2022-10-13 stsp 	imsg_init(ibuf, imsg_fds[0]);
109 6a800804 2022-10-13 stsp 
110 6a800804 2022-10-13 stsp 	err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
111 6a800804 2022-10-13 stsp 	if (err)
112 6a800804 2022-10-13 stsp 		goto done;
113 6a800804 2022-10-13 stsp 	fd = -1;
114 6a800804 2022-10-13 stsp 
115 6a800804 2022-10-13 stsp 	err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
116 6a800804 2022-10-13 stsp 	if (err)
117 6a800804 2022-10-13 stsp 		goto done;
118 6a800804 2022-10-13 stsp 
119 6a800804 2022-10-13 stsp 	err = got_privsep_recv_gitconfig_int(
120 6a800804 2022-10-13 stsp 	    gitconfig_repository_format_version, ibuf);
121 6a800804 2022-10-13 stsp 	if (err)
122 6a800804 2022-10-13 stsp 		goto done;
123 6a800804 2022-10-13 stsp 
124 27749ea2 2023-02-05 op 	if (extnames && extvals && nextensions) {
125 6a800804 2022-10-13 stsp 		err = got_privsep_send_gitconfig_repository_extensions_req(
126 6a800804 2022-10-13 stsp 		    ibuf);
127 6a800804 2022-10-13 stsp 		if (err)
128 6a800804 2022-10-13 stsp 			goto done;
129 6a800804 2022-10-13 stsp 		err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
130 6a800804 2022-10-13 stsp 		if (err)
131 6a800804 2022-10-13 stsp 			goto done;
132 6a800804 2022-10-13 stsp 		if (*nextensions > 0) {
133 6a800804 2022-10-13 stsp 			int i;
134 27749ea2 2023-02-05 op 			*extnames = calloc(*nextensions, sizeof(char *));
135 27749ea2 2023-02-05 op 			if (*extnames == NULL) {
136 6a800804 2022-10-13 stsp 				err = got_error_from_errno("calloc");
137 6a800804 2022-10-13 stsp 				goto done;
138 6a800804 2022-10-13 stsp 			}
139 27749ea2 2023-02-05 op 			*extvals = calloc(*nextensions, sizeof(char *));
140 27749ea2 2023-02-05 op 			if (*extvals == NULL) {
141 27749ea2 2023-02-05 op 				err = got_error_from_errno("calloc");
142 27749ea2 2023-02-05 op 				goto done;
143 27749ea2 2023-02-05 op 			}
144 6a800804 2022-10-13 stsp 			for (i = 0; i < *nextensions; i++) {
145 27749ea2 2023-02-05 op 				char *ext, *val;
146 27749ea2 2023-02-05 op 				err = got_privsep_recv_gitconfig_pair(&ext,
147 27749ea2 2023-02-05 op 				    &val, ibuf);
148 6a800804 2022-10-13 stsp 				if (err)
149 6a800804 2022-10-13 stsp 					goto done;
150 27749ea2 2023-02-05 op 				(*extnames)[i] = ext;
151 27749ea2 2023-02-05 op 				(*extvals)[i] = val;
152 6a800804 2022-10-13 stsp 			}
153 6a800804 2022-10-13 stsp 		}
154 6a800804 2022-10-13 stsp 	}
155 6a800804 2022-10-13 stsp 
156 6a800804 2022-10-13 stsp 	err = got_privsep_send_gitconfig_author_name_req(ibuf);
157 6a800804 2022-10-13 stsp 	if (err)
158 6a800804 2022-10-13 stsp 		goto done;
159 6a800804 2022-10-13 stsp 
160 6a800804 2022-10-13 stsp 	err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
161 6a800804 2022-10-13 stsp 	if (err)
162 6a800804 2022-10-13 stsp 		goto done;
163 6a800804 2022-10-13 stsp 
164 6a800804 2022-10-13 stsp 	err = got_privsep_send_gitconfig_author_email_req(ibuf);
165 6a800804 2022-10-13 stsp 	if (err)
166 6a800804 2022-10-13 stsp 		goto done;
167 6a800804 2022-10-13 stsp 
168 6a800804 2022-10-13 stsp 	err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
169 6a800804 2022-10-13 stsp 	if (err)
170 6a800804 2022-10-13 stsp 		goto done;
171 6a800804 2022-10-13 stsp 
172 6a800804 2022-10-13 stsp 	if (remotes && nremotes) {
173 6a800804 2022-10-13 stsp 		err = got_privsep_send_gitconfig_remotes_req(ibuf);
174 6a800804 2022-10-13 stsp 		if (err)
175 6a800804 2022-10-13 stsp 			goto done;
176 6a800804 2022-10-13 stsp 
177 6a800804 2022-10-13 stsp 		err = got_privsep_recv_gitconfig_remotes(remotes,
178 6a800804 2022-10-13 stsp 		    nremotes, ibuf);
179 6a800804 2022-10-13 stsp 		if (err)
180 6a800804 2022-10-13 stsp 			goto done;
181 6a800804 2022-10-13 stsp 	}
182 6a800804 2022-10-13 stsp 
183 6a800804 2022-10-13 stsp 	if (gitconfig_owner) {
184 6a800804 2022-10-13 stsp 		err = got_privsep_send_gitconfig_owner_req(ibuf);
185 6a800804 2022-10-13 stsp 		if (err)
186 6a800804 2022-10-13 stsp 			goto done;
187 6a800804 2022-10-13 stsp 		err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
188 6a800804 2022-10-13 stsp 		if (err)
189 6a800804 2022-10-13 stsp 			goto done;
190 6a800804 2022-10-13 stsp 	}
191 6a800804 2022-10-13 stsp 
192 6a800804 2022-10-13 stsp 	err = got_privsep_send_stop(imsg_fds[0]);
193 6a800804 2022-10-13 stsp 	child_err = got_privsep_wait_for_child(pid);
194 6a800804 2022-10-13 stsp 	if (child_err && err == NULL)
195 6a800804 2022-10-13 stsp 		err = child_err;
196 6a800804 2022-10-13 stsp done:
197 6a800804 2022-10-13 stsp 	if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
198 6a800804 2022-10-13 stsp 		err = got_error_from_errno("close");
199 6a800804 2022-10-13 stsp 	if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
200 6a800804 2022-10-13 stsp 		err = got_error_from_errno("close");
201 6a800804 2022-10-13 stsp 	if (fd != -1 && close(fd) == -1 && err == NULL)
202 6a800804 2022-10-13 stsp 		err = got_error_from_errno2("close", gitconfig_path);
203 6a800804 2022-10-13 stsp 	free(ibuf);
204 6a800804 2022-10-13 stsp 	return err;
205 6a800804 2022-10-13 stsp }