1 aba9c984 2019-09-08 stsp /*
  2 aba9c984 2019-09-08 stsp  * Copyright (c) 2019 Stefan Sperling <stsp@openbsd.org>
  3 aba9c984 2019-09-08 stsp  *
  4 aba9c984 2019-09-08 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 aba9c984 2019-09-08 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 aba9c984 2019-09-08 stsp  * copyright notice and this permission notice appear in all copies.
  7 aba9c984 2019-09-08 stsp  *
  8 aba9c984 2019-09-08 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 aba9c984 2019-09-08 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 aba9c984 2019-09-08 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 aba9c984 2019-09-08 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 aba9c984 2019-09-08 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 aba9c984 2019-09-08 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 aba9c984 2019-09-08 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 aba9c984 2019-09-08 stsp  */
 16 aba9c984 2019-09-08 stsp 
 17 aba9c984 2019-09-08 stsp #include <sys/types.h>
 18 aba9c984 2019-09-08 stsp #include <sys/uio.h>
 19 aba9c984 2019-09-08 stsp #include <sys/time.h>
 20 aba9c984 2019-09-08 stsp 
 21 aba9c984 2019-09-08 stsp #include <stdint.h>
 22 aba9c984 2019-09-08 stsp #include <limits.h>
 23 aba9c984 2019-09-08 stsp #include <signal.h>
 24 aba9c984 2019-09-08 stsp #include <stdio.h>
 25 aba9c984 2019-09-08 stsp #include <stdlib.h>
 26 aba9c984 2019-09-08 stsp #include <string.h>
 27 81a12da5 2020-09-09 naddy #include <unistd.h>
 28 aba9c984 2019-09-08 stsp #include <zlib.h>
 29 dd038bc6 2021-09-21 thomas.ad 
 30 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
 31 aba9c984 2019-09-08 stsp 
 32 aba9c984 2019-09-08 stsp #include "got_error.h"
 33 aba9c984 2019-09-08 stsp #include "got_object.h"
 34 cd95becd 2019-11-29 stsp #include "got_repository.h"
 35 aba9c984 2019-09-08 stsp 
 36 aba9c984 2019-09-08 stsp #include "got_lib_delta.h"
 37 aba9c984 2019-09-08 stsp #include "got_lib_object.h"
 38 aba9c984 2019-09-08 stsp #include "got_lib_privsep.h"
 39 aba9c984 2019-09-08 stsp #include "got_lib_gitconfig.h"
 40 aba9c984 2019-09-08 stsp 
 41 aba9c984 2019-09-08 stsp static volatile sig_atomic_t sigint_received;
 42 aba9c984 2019-09-08 stsp 
 43 aba9c984 2019-09-08 stsp static void
 44 aba9c984 2019-09-08 stsp catch_sigint(int signo)
 45 aba9c984 2019-09-08 stsp {
 46 aba9c984 2019-09-08 stsp 	sigint_received = 1;
 47 aba9c984 2019-09-08 stsp }
 48 aba9c984 2019-09-08 stsp 
 49 aba9c984 2019-09-08 stsp static const struct got_error *
 50 e70bf110 2020-03-22 stsp send_gitconfig_int(struct imsgbuf *ibuf, int value)
 51 e70bf110 2020-03-22 stsp {
 52 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_INT_VAL, 0, 0, -1,
 53 e70bf110 2020-03-22 stsp 	    &value, sizeof(value)) == -1)
 54 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_INT_VAL");
 55 e70bf110 2020-03-22 stsp 
 56 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
 57 e70bf110 2020-03-22 stsp }
 58 e70bf110 2020-03-22 stsp 
 59 e70bf110 2020-03-22 stsp static const struct got_error *
 60 aba9c984 2019-09-08 stsp gitconfig_num_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig,
 61 49d691e8 2021-09-25 thomas.ad     const char *section, const char *tag, int def)
 62 aba9c984 2019-09-08 stsp {
 63 aba9c984 2019-09-08 stsp 	int value;
 64 aba9c984 2019-09-08 stsp 
 65 aba9c984 2019-09-08 stsp 	if (gitconfig == NULL)
 66 aba9c984 2019-09-08 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
 67 aba9c984 2019-09-08 stsp 
 68 aba9c984 2019-09-08 stsp 	value = got_gitconfig_get_num(gitconfig, section, tag, def);
 69 e70bf110 2020-03-22 stsp 	return send_gitconfig_int(ibuf, value);
 70 aba9c984 2019-09-08 stsp }
 71 aba9c984 2019-09-08 stsp 
 72 aba9c984 2019-09-08 stsp static const struct got_error *
 73 e70bf110 2020-03-22 stsp send_gitconfig_str(struct imsgbuf *ibuf, const char *value)
 74 e70bf110 2020-03-22 stsp {
 75 6c13dcd2 2020-09-18 stsp 	size_t len = value ? strlen(value) : 0;
 76 e70bf110 2020-03-22 stsp 
 77 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_STR_VAL, 0, 0, -1,
 78 e70bf110 2020-03-22 stsp 	    value, len) == -1)
 79 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_STR_VAL");
 80 e70bf110 2020-03-22 stsp 
 81 e70bf110 2020-03-22 stsp 	return got_privsep_flush_imsg(ibuf);
 82 e70bf110 2020-03-22 stsp }
 83 e70bf110 2020-03-22 stsp 
 84 e70bf110 2020-03-22 stsp static const struct got_error *
 85 aba9c984 2019-09-08 stsp gitconfig_str_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig,
 86 49d691e8 2021-09-25 thomas.ad     const char *section, const char *tag)
 87 aba9c984 2019-09-08 stsp {
 88 aba9c984 2019-09-08 stsp 	char *value;
 89 aba9c984 2019-09-08 stsp 
 90 aba9c984 2019-09-08 stsp 	if (gitconfig == NULL)
 91 aba9c984 2019-09-08 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
 92 aba9c984 2019-09-08 stsp 
 93 aba9c984 2019-09-08 stsp 	value = got_gitconfig_get_str(gitconfig, section, tag);
 94 e70bf110 2020-03-22 stsp 	return send_gitconfig_str(ibuf, value);
 95 aba9c984 2019-09-08 stsp }
 96 aba9c984 2019-09-08 stsp 
 97 cd95becd 2019-11-29 stsp static const struct got_error *
 98 e70bf110 2020-03-22 stsp send_gitconfig_remotes(struct imsgbuf *ibuf, struct got_remote_repo *remotes,
 99 e70bf110 2020-03-22 stsp     int nremotes)
100 e70bf110 2020-03-22 stsp {
101 e70bf110 2020-03-22 stsp 	const struct got_error *err = NULL;
102 e70bf110 2020-03-22 stsp 	struct got_imsg_remotes iremotes;
103 e70bf110 2020-03-22 stsp 	int i;
104 e70bf110 2020-03-22 stsp 
105 e70bf110 2020-03-22 stsp 	iremotes.nremotes = nremotes;
106 e70bf110 2020-03-22 stsp 	if (imsg_compose(ibuf, GOT_IMSG_GITCONFIG_REMOTES, 0, 0, -1,
107 e70bf110 2020-03-22 stsp 	    &iremotes, sizeof(iremotes)) == -1)
108 e70bf110 2020-03-22 stsp 		return got_error_from_errno("imsg_compose GITCONFIG_REMOTES");
109 e70bf110 2020-03-22 stsp 
110 e70bf110 2020-03-22 stsp 	err = got_privsep_flush_imsg(ibuf);
111 e70bf110 2020-03-22 stsp 	imsg_clear(ibuf);
112 e70bf110 2020-03-22 stsp 	if (err)
113 e70bf110 2020-03-22 stsp 		return err;
114 e70bf110 2020-03-22 stsp 
115 e70bf110 2020-03-22 stsp 	for (i = 0; i < nremotes; i++) {
116 e70bf110 2020-03-22 stsp 		struct got_imsg_remote iremote;
117 e70bf110 2020-03-22 stsp 		size_t len = sizeof(iremote);
118 e70bf110 2020-03-22 stsp 		struct ibuf *wbuf;
119 e70bf110 2020-03-22 stsp 
120 e70bf110 2020-03-22 stsp 		iremote.mirror_references = remotes[i].mirror_references;
121 e70bf110 2020-03-22 stsp 		iremote.name_len = strlen(remotes[i].name);
122 e70bf110 2020-03-22 stsp 		len += iremote.name_len;
123 6480c871 2021-08-30 stsp 		iremote.fetch_url_len = strlen(remotes[i].fetch_url);
124 6480c871 2021-08-30 stsp 		len += iremote.fetch_url_len;
125 6480c871 2021-08-30 stsp 		iremote.send_url_len = strlen(remotes[i].send_url);
126 6480c871 2021-08-30 stsp 		len += iremote.send_url_len;
127 e70bf110 2020-03-22 stsp 
128 e70bf110 2020-03-22 stsp 		wbuf = imsg_create(ibuf, GOT_IMSG_GITCONFIG_REMOTE, 0, 0, len);
129 e70bf110 2020-03-22 stsp 		if (wbuf == NULL)
130 e70bf110 2020-03-22 stsp 			return got_error_from_errno(
131 e70bf110 2020-03-22 stsp 			    "imsg_create GITCONFIG_REMOTE");
132 e70bf110 2020-03-22 stsp 
133 e9f1a409 2022-05-19 thomas 		if (imsg_add(wbuf, &iremote, sizeof(iremote)) == -1)
134 e9f1a409 2022-05-19 thomas 			return got_error_from_errno(
135 e70bf110 2020-03-22 stsp 			    "imsg_add GITCONFIG_REMOTE");
136 e70bf110 2020-03-22 stsp 
137 e9f1a409 2022-05-19 thomas 		if (imsg_add(wbuf, remotes[i].name, iremote.name_len) == -1)
138 e9f1a409 2022-05-19 thomas 			return got_error_from_errno(
139 e70bf110 2020-03-22 stsp 			    "imsg_add GITCONFIG_REMOTE");
140 e9f1a409 2022-05-19 thomas 		if (imsg_add(wbuf, remotes[i].fetch_url, iremote.fetch_url_len) == -1)
141 e9f1a409 2022-05-19 thomas 			return got_error_from_errno(
142 6480c871 2021-08-30 stsp 			    "imsg_add GITCONFIG_REMOTE");
143 e9f1a409 2022-05-19 thomas 		if (imsg_add(wbuf, remotes[i].send_url, iremote.send_url_len) == -1)
144 e9f1a409 2022-05-19 thomas 			return got_error_from_errno(
145 e9f1a409 2022-05-19 thomas 			    "imsg_add GITCONFIG_REMOTE");
146 e70bf110 2020-03-22 stsp 
147 e70bf110 2020-03-22 stsp 		wbuf->fd = -1;
148 e70bf110 2020-03-22 stsp 		imsg_close(ibuf, wbuf);
149 e70bf110 2020-03-22 stsp 		err = got_privsep_flush_imsg(ibuf);
150 e70bf110 2020-03-22 stsp 		if (err)
151 e70bf110 2020-03-22 stsp 			return err;
152 e70bf110 2020-03-22 stsp 	}
153 e70bf110 2020-03-22 stsp 
154 e70bf110 2020-03-22 stsp 	return NULL;
155 e70bf110 2020-03-22 stsp }
156 e70bf110 2020-03-22 stsp 
157 20b7abb3 2020-10-22 stsp static int
158 20b7abb3 2020-10-22 stsp get_boolean_val(char *val)
159 20b7abb3 2020-10-22 stsp {
160 20b7abb3 2020-10-22 stsp     return (strcasecmp(val, "true") == 0 ||
161 20b7abb3 2020-10-22 stsp 	strcasecmp(val, "on") == 0 ||
162 20b7abb3 2020-10-22 stsp 	strcasecmp(val, "yes") == 0 ||
163 20b7abb3 2020-10-22 stsp 	strcmp(val, "1") == 0);
164 20b7abb3 2020-10-22 stsp }
165 e70bf110 2020-03-22 stsp 
166 e70bf110 2020-03-22 stsp static const struct got_error *
167 cd95becd 2019-11-29 stsp gitconfig_remotes_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig)
168 cd95becd 2019-11-29 stsp {
169 cd95becd 2019-11-29 stsp 	const struct got_error *err = NULL;
170 cd95becd 2019-11-29 stsp 	struct got_gitconfig_list *sections;
171 cd95becd 2019-11-29 stsp 	struct got_gitconfig_list_node *node;
172 cd95becd 2019-11-29 stsp 	struct got_remote_repo *remotes = NULL;
173 cd95becd 2019-11-29 stsp 	int nremotes = 0, i;
174 cd95becd 2019-11-29 stsp 
175 cd95becd 2019-11-29 stsp 	if (gitconfig == NULL)
176 cd95becd 2019-11-29 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
177 cd95becd 2019-11-29 stsp 
178 cd95becd 2019-11-29 stsp 	err = got_gitconfig_get_section_list(&sections, gitconfig);
179 cd95becd 2019-11-29 stsp 	if (err)
180 cd95becd 2019-11-29 stsp 		return err;
181 cd95becd 2019-11-29 stsp 
182 cd95becd 2019-11-29 stsp 	TAILQ_FOREACH(node, &sections->fields, link) {
183 cd95becd 2019-11-29 stsp 		if (strncasecmp("remote \"", node->field, 8) != 0)
184 cd95becd 2019-11-29 stsp 			continue;
185 cd95becd 2019-11-29 stsp 		nremotes++;
186 cd95becd 2019-11-29 stsp 	}
187 cd95becd 2019-11-29 stsp 
188 cd95becd 2019-11-29 stsp 	if (nremotes == 0) {
189 e70bf110 2020-03-22 stsp 		err = send_gitconfig_remotes(ibuf, NULL, 0);
190 cd95becd 2019-11-29 stsp 		goto done;
191 cd95becd 2019-11-29 stsp 	}
192 cd95becd 2019-11-29 stsp 
193 cd95becd 2019-11-29 stsp 	remotes = recallocarray(NULL, 0, nremotes, sizeof(*remotes));
194 cd95becd 2019-11-29 stsp 	if (remotes == NULL) {
195 cd95becd 2019-11-29 stsp 		err = got_error_from_errno("recallocarray");
196 cd95becd 2019-11-29 stsp 		goto done;
197 cd95becd 2019-11-29 stsp 	}
198 cd95becd 2019-11-29 stsp 
199 cd95becd 2019-11-29 stsp 	i = 0;
200 cd95becd 2019-11-29 stsp 	TAILQ_FOREACH(node, &sections->fields, link) {
201 469dd726 2020-03-20 stsp 		char *name, *end, *mirror;
202 cd95becd 2019-11-29 stsp 
203 cd95becd 2019-11-29 stsp 		if (strncasecmp("remote \"", node->field, 8) != 0)
204 cd95becd 2019-11-29 stsp 			continue;
205 cd95becd 2019-11-29 stsp 
206 cd95becd 2019-11-29 stsp 		name = strdup(node->field + 8);
207 cd95becd 2019-11-29 stsp 		if (name == NULL) {
208 cd95becd 2019-11-29 stsp 			err = got_error_from_errno("strdup");
209 cd95becd 2019-11-29 stsp 			goto done;
210 cd95becd 2019-11-29 stsp 		}
211 cd95becd 2019-11-29 stsp 		end = strrchr(name, '"');
212 cd95becd 2019-11-29 stsp 		if (end)
213 cd95becd 2019-11-29 stsp 			*end = '\0';
214 cd95becd 2019-11-29 stsp 		remotes[i].name = name;
215 cd95becd 2019-11-29 stsp 
216 6480c871 2021-08-30 stsp 		remotes[i].fetch_url = got_gitconfig_get_str(gitconfig,
217 cd95becd 2019-11-29 stsp 		    node->field, "url");
218 6480c871 2021-08-30 stsp 		if (remotes[i].fetch_url == NULL) {
219 cd95becd 2019-11-29 stsp 			err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
220 cd95becd 2019-11-29 stsp 			goto done;
221 cd95becd 2019-11-29 stsp 		}
222 469dd726 2020-03-20 stsp 
223 6480c871 2021-08-30 stsp 		remotes[i].send_url = got_gitconfig_get_str(gitconfig,
224 6480c871 2021-08-30 stsp 		    node->field, "pushurl");
225 6480c871 2021-08-30 stsp 		if (remotes[i].send_url == NULL)
226 6480c871 2021-08-30 stsp 			remotes[i].send_url = got_gitconfig_get_str(gitconfig,
227 6480c871 2021-08-30 stsp 			    node->field, "url");
228 6480c871 2021-08-30 stsp 		if (remotes[i].send_url == NULL) {
229 6480c871 2021-08-30 stsp 			err = got_error(GOT_ERR_GITCONFIG_SYNTAX);
230 6480c871 2021-08-30 stsp 			goto done;
231 6480c871 2021-08-30 stsp 		}
232 6480c871 2021-08-30 stsp 
233 469dd726 2020-03-20 stsp 		remotes[i].mirror_references = 0;
234 469dd726 2020-03-20 stsp 		mirror = got_gitconfig_get_str(gitconfig, node->field,
235 469dd726 2020-03-20 stsp 		    "mirror");
236 20b7abb3 2020-10-22 stsp 		if (mirror != NULL && get_boolean_val(mirror))
237 469dd726 2020-03-20 stsp 			remotes[i].mirror_references = 1;
238 cd95becd 2019-11-29 stsp 
239 cd95becd 2019-11-29 stsp 		i++;
240 cd95becd 2019-11-29 stsp 	}
241 cd95becd 2019-11-29 stsp 
242 e70bf110 2020-03-22 stsp 	err = send_gitconfig_remotes(ibuf, remotes, nremotes);
243 cd95becd 2019-11-29 stsp done:
244 cd95becd 2019-11-29 stsp 	for (i = 0; i < nremotes; i++)
245 cd95becd 2019-11-29 stsp 		free(remotes[i].name);
246 cd95becd 2019-11-29 stsp 	free(remotes);
247 cd95becd 2019-11-29 stsp 	got_gitconfig_free_list(sections);
248 cd95becd 2019-11-29 stsp 	return err;
249 9a1cc63f 2020-02-03 stsp }
250 9a1cc63f 2020-02-03 stsp 
251 9a1cc63f 2020-02-03 stsp static const struct got_error *
252 9a1cc63f 2020-02-03 stsp gitconfig_owner_request(struct imsgbuf *ibuf, struct got_gitconfig *gitconfig)
253 9a1cc63f 2020-02-03 stsp {
254 9a1cc63f 2020-02-03 stsp 	char *value;
255 9a1cc63f 2020-02-03 stsp 
256 9a1cc63f 2020-02-03 stsp 	if (gitconfig == NULL)
257 9a1cc63f 2020-02-03 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
258 9a1cc63f 2020-02-03 stsp 
259 9a1cc63f 2020-02-03 stsp 	value = got_gitconfig_get_str(gitconfig, "gotweb", "owner");
260 9a1cc63f 2020-02-03 stsp 	if (value)
261 e70bf110 2020-03-22 stsp 		return send_gitconfig_str(ibuf, value);
262 9a1cc63f 2020-02-03 stsp 	value = got_gitconfig_get_str(gitconfig, "gitweb", "owner");
263 e70bf110 2020-03-22 stsp 	return send_gitconfig_str(ibuf, value);
264 cd95becd 2019-11-29 stsp }
265 cd95becd 2019-11-29 stsp 
266 20b7abb3 2020-10-22 stsp static const struct got_error *
267 20b7abb3 2020-10-22 stsp gitconfig_extensions_request(struct imsgbuf *ibuf,
268 20b7abb3 2020-10-22 stsp     struct got_gitconfig *gitconfig)
269 20b7abb3 2020-10-22 stsp {
270 20b7abb3 2020-10-22 stsp 	const struct got_error *err = NULL;
271 20b7abb3 2020-10-22 stsp 	struct got_gitconfig_list *tags;
272 20b7abb3 2020-10-22 stsp 	struct got_gitconfig_list_node *node;
273 20b7abb3 2020-10-22 stsp 	int nextensions = 0;
274 20b7abb3 2020-10-22 stsp 	char *val;
275 20b7abb3 2020-10-22 stsp 
276 20b7abb3 2020-10-22 stsp 	if (gitconfig == NULL)
277 20b7abb3 2020-10-22 stsp 		return got_error(GOT_ERR_PRIVSEP_MSG);
278 20b7abb3 2020-10-22 stsp 
279 20b7abb3 2020-10-22 stsp 	tags = got_gitconfig_get_tag_list(gitconfig, "extensions");
280 20b7abb3 2020-10-22 stsp 	if (tags == NULL)
281 20b7abb3 2020-10-22 stsp 		return send_gitconfig_int(ibuf, 0);
282 20b7abb3 2020-10-22 stsp 
283 20b7abb3 2020-10-22 stsp 	TAILQ_FOREACH(node, &tags->fields, link) {
284 20b7abb3 2020-10-22 stsp 		val = got_gitconfig_get_str(gitconfig, "extensions",
285 20b7abb3 2020-10-22 stsp 		    node->field);
286 20b7abb3 2020-10-22 stsp 		if (get_boolean_val(val))
287 20b7abb3 2020-10-22 stsp 			nextensions++;
288 20b7abb3 2020-10-22 stsp 	}
289 20b7abb3 2020-10-22 stsp 
290 20b7abb3 2020-10-22 stsp 	err = send_gitconfig_int(ibuf, nextensions);
291 20b7abb3 2020-10-22 stsp 	if (err)
292 20b7abb3 2020-10-22 stsp 		goto done;
293 20b7abb3 2020-10-22 stsp 
294 20b7abb3 2020-10-22 stsp 	TAILQ_FOREACH(node, &tags->fields, link) {
295 20b7abb3 2020-10-22 stsp 		val = got_gitconfig_get_str(gitconfig, "extensions",
296 20b7abb3 2020-10-22 stsp 		    node->field);
297 20b7abb3 2020-10-22 stsp 		if (get_boolean_val(val)) {
298 20b7abb3 2020-10-22 stsp 			err = send_gitconfig_str(ibuf, node->field);
299 20b7abb3 2020-10-22 stsp 			if (err)
300 20b7abb3 2020-10-22 stsp 				goto done;
301 20b7abb3 2020-10-22 stsp 		}
302 20b7abb3 2020-10-22 stsp 	}
303 20b7abb3 2020-10-22 stsp done:
304 20b7abb3 2020-10-22 stsp 	got_gitconfig_free_list(tags);
305 20b7abb3 2020-10-22 stsp 	return err;
306 20b7abb3 2020-10-22 stsp }
307 20b7abb3 2020-10-22 stsp 
308 aba9c984 2019-09-08 stsp int
309 aba9c984 2019-09-08 stsp main(int argc, char *argv[])
310 aba9c984 2019-09-08 stsp {
311 aba9c984 2019-09-08 stsp 	const struct got_error *err = NULL;
312 aba9c984 2019-09-08 stsp 	struct imsgbuf ibuf;
313 aba9c984 2019-09-08 stsp 	size_t datalen;
314 aba9c984 2019-09-08 stsp 	struct got_gitconfig *gitconfig = NULL;
315 aba9c984 2019-09-08 stsp #if 0
316 aba9c984 2019-09-08 stsp 	static int attached;
317 aba9c984 2019-09-08 stsp 
318 aba9c984 2019-09-08 stsp 	while (!attached)
319 aba9c984 2019-09-08 stsp 		sleep(1);
320 aba9c984 2019-09-08 stsp #endif
321 aba9c984 2019-09-08 stsp 	signal(SIGINT, catch_sigint);
322 aba9c984 2019-09-08 stsp 
323 aba9c984 2019-09-08 stsp 	imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
324 aba9c984 2019-09-08 stsp 
325 aba9c984 2019-09-08 stsp #ifndef PROFILE
326 aba9c984 2019-09-08 stsp 	/* revoke access to most system calls */
327 aba9c984 2019-09-08 stsp 	if (pledge("stdio recvfd", NULL) == -1) {
328 aba9c984 2019-09-08 stsp 		err = got_error_from_errno("pledge");
329 aba9c984 2019-09-08 stsp 		got_privsep_send_error(&ibuf, err);
330 aba9c984 2019-09-08 stsp 		return 1;
331 aba9c984 2019-09-08 stsp 	}
332 97799ccd 2022-02-06 thomas 
333 97799ccd 2022-02-06 thomas 	/* revoke fs access */
334 97799ccd 2022-02-06 thomas 	if (landlock_no_fs() == -1) {
335 97799ccd 2022-02-06 thomas 		err = got_error_from_errno("landlock_no_fs");
336 97799ccd 2022-02-06 thomas 		got_privsep_send_error(&ibuf, err);
337 97799ccd 2022-02-06 thomas 		return 1;
338 97799ccd 2022-02-06 thomas 	}
339 5d120ea8 2022-06-23 op 	if (cap_enter() == -1) {
340 5d120ea8 2022-06-23 op 		err = got_error_from_errno("cap_enter");
341 5d120ea8 2022-06-23 op 		got_privsep_send_error(&ibuf, err);
342 5d120ea8 2022-06-23 op 		return 1;
343 5d120ea8 2022-06-23 op 	}
344 aba9c984 2019-09-08 stsp #endif
345 aba9c984 2019-09-08 stsp 
346 aba9c984 2019-09-08 stsp 	for (;;) {
347 aba9c984 2019-09-08 stsp 		struct imsg imsg;
348 aba9c984 2019-09-08 stsp 
349 aba9c984 2019-09-08 stsp 		memset(&imsg, 0, sizeof(imsg));
350 aba9c984 2019-09-08 stsp 		imsg.fd = -1;
351 aba9c984 2019-09-08 stsp 
352 aba9c984 2019-09-08 stsp 		if (sigint_received) {
353 aba9c984 2019-09-08 stsp 			err = got_error(GOT_ERR_CANCELLED);
354 aba9c984 2019-09-08 stsp 			break;
355 aba9c984 2019-09-08 stsp 		}
356 aba9c984 2019-09-08 stsp 
357 aba9c984 2019-09-08 stsp 		err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
358 aba9c984 2019-09-08 stsp 		if (err) {
359 aba9c984 2019-09-08 stsp 			if (err->code == GOT_ERR_PRIVSEP_PIPE)
360 aba9c984 2019-09-08 stsp 				err = NULL;
361 aba9c984 2019-09-08 stsp 			break;
362 aba9c984 2019-09-08 stsp 		}
363 aba9c984 2019-09-08 stsp 
364 aba9c984 2019-09-08 stsp 		if (imsg.hdr.type == GOT_IMSG_STOP)
365 aba9c984 2019-09-08 stsp 			break;
366 aba9c984 2019-09-08 stsp 
367 aba9c984 2019-09-08 stsp 		switch (imsg.hdr.type) {
368 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_PARSE_REQUEST:
369 aba9c984 2019-09-08 stsp 			datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
370 aba9c984 2019-09-08 stsp 			if (datalen != 0) {
371 aba9c984 2019-09-08 stsp 				err = got_error(GOT_ERR_PRIVSEP_LEN);
372 aba9c984 2019-09-08 stsp 				break;
373 aba9c984 2019-09-08 stsp 			}
374 aba9c984 2019-09-08 stsp 			if (imsg.fd == -1){
375 aba9c984 2019-09-08 stsp 				err = got_error(GOT_ERR_PRIVSEP_NO_FD);
376 aba9c984 2019-09-08 stsp 				break;
377 aba9c984 2019-09-08 stsp 			}
378 aba9c984 2019-09-08 stsp 
379 aba9c984 2019-09-08 stsp 			if (gitconfig)
380 aba9c984 2019-09-08 stsp 				got_gitconfig_close(gitconfig);
381 aba9c984 2019-09-08 stsp 			err = got_gitconfig_open(&gitconfig, imsg.fd);
382 aba9c984 2019-09-08 stsp 			break;
383 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_REPOSITORY_FORMAT_VERSION_REQUEST:
384 aba9c984 2019-09-08 stsp 			err = gitconfig_num_request(&ibuf, gitconfig, "core",
385 aba9c984 2019-09-08 stsp 			    "repositoryformatversion", 0);
386 aba9c984 2019-09-08 stsp 			break;
387 20b7abb3 2020-10-22 stsp 		case GOT_IMSG_GITCONFIG_REPOSITORY_EXTENSIONS_REQUEST:
388 20b7abb3 2020-10-22 stsp 			err = gitconfig_extensions_request(&ibuf, gitconfig);
389 20b7abb3 2020-10-22 stsp 			break;
390 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_AUTHOR_NAME_REQUEST:
391 aba9c984 2019-09-08 stsp 			err = gitconfig_str_request(&ibuf, gitconfig, "user",
392 aba9c984 2019-09-08 stsp 			    "name");
393 aba9c984 2019-09-08 stsp 			break;
394 aba9c984 2019-09-08 stsp 		case GOT_IMSG_GITCONFIG_AUTHOR_EMAIL_REQUEST:
395 aba9c984 2019-09-08 stsp 			err = gitconfig_str_request(&ibuf, gitconfig, "user",
396 aba9c984 2019-09-08 stsp 			    "email");
397 aba9c984 2019-09-08 stsp 			break;
398 cd95becd 2019-11-29 stsp 		case GOT_IMSG_GITCONFIG_REMOTES_REQUEST:
399 cd95becd 2019-11-29 stsp 			err = gitconfig_remotes_request(&ibuf, gitconfig);
400 cd95becd 2019-11-29 stsp 			break;
401 9a1cc63f 2020-02-03 stsp 		case GOT_IMSG_GITCONFIG_OWNER_REQUEST:
402 9a1cc63f 2020-02-03 stsp 			err = gitconfig_owner_request(&ibuf, gitconfig);
403 9a1cc63f 2020-02-03 stsp 			break;
404 aba9c984 2019-09-08 stsp 		default:
405 aba9c984 2019-09-08 stsp 			err = got_error(GOT_ERR_PRIVSEP_MSG);
406 aba9c984 2019-09-08 stsp 			break;
407 aba9c984 2019-09-08 stsp 		}
408 aba9c984 2019-09-08 stsp 
409 aba9c984 2019-09-08 stsp 		if (imsg.fd != -1) {
410 aba9c984 2019-09-08 stsp 			if (close(imsg.fd) == -1 && err == NULL)
411 aba9c984 2019-09-08 stsp 				err = got_error_from_errno("close");
412 aba9c984 2019-09-08 stsp 		}
413 aba9c984 2019-09-08 stsp 
414 aba9c984 2019-09-08 stsp 		imsg_free(&imsg);
415 aba9c984 2019-09-08 stsp 		if (err)
416 aba9c984 2019-09-08 stsp 			break;
417 aba9c984 2019-09-08 stsp 	}
418 aba9c984 2019-09-08 stsp 
419 aba9c984 2019-09-08 stsp 	imsg_clear(&ibuf);
420 aba9c984 2019-09-08 stsp 	if (err) {
421 aba9c984 2019-09-08 stsp 		if (!sigint_received && err->code != GOT_ERR_PRIVSEP_PIPE) {
422 aba9c984 2019-09-08 stsp 			fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
423 aba9c984 2019-09-08 stsp 			got_privsep_send_error(&ibuf, err);
424 aba9c984 2019-09-08 stsp 		}
425 aba9c984 2019-09-08 stsp 	}
426 08578a35 2021-01-22 stsp 	if (close(GOT_IMSG_FD_CHILD) == -1 && err == NULL)
427 aba9c984 2019-09-08 stsp 		err = got_error_from_errno("close");
428 aba9c984 2019-09-08 stsp 	return err ? 1 : 0;
429 aba9c984 2019-09-08 stsp }