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1 7b19e0f1 2017-11-05 stsp /*
2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
3 7b19e0f1 2017-11-05 stsp *
4 7b19e0f1 2017-11-05 stsp * Permission to use, copy, modify, and distribute this software for any
5 7b19e0f1 2017-11-05 stsp * purpose with or without fee is hereby granted, provided that the above
6 7b19e0f1 2017-11-05 stsp * copyright notice and this permission notice appear in all copies.
7 7b19e0f1 2017-11-05 stsp *
8 7b19e0f1 2017-11-05 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 7b19e0f1 2017-11-05 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 7b19e0f1 2017-11-05 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 7b19e0f1 2017-11-05 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 7b19e0f1 2017-11-05 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 7b19e0f1 2017-11-05 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 7b19e0f1 2017-11-05 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 7b19e0f1 2017-11-05 stsp */
16 4027f31a 2017-11-04 stsp
17 4027f31a 2017-11-04 stsp /* Error codes */
18 0a585a0d 2018-03-17 stsp #define GOT_ERR_OK 0
19 0a585a0d 2018-03-17 stsp #define GOT_ERR_ERRNO 1
20 a1fd68d8 2018-01-12 stsp #define GOT_ERR_NOT_GIT_REPO 2
21 a1fd68d8 2018-01-12 stsp #define GOT_ERR_NOT_ABSPATH 3
22 a1fd68d8 2018-01-12 stsp #define GOT_ERR_BAD_PATH 4
23 a1fd68d8 2018-01-12 stsp #define GOT_ERR_NOT_REF 5
24 a1fd68d8 2018-01-12 stsp #define GOT_ERR_IO 6
25 a1fd68d8 2018-01-12 stsp #define GOT_ERR_EOF 7
26 a1fd68d8 2018-01-12 stsp #define GOT_ERR_DECOMPRESSION 8
27 a1fd68d8 2018-01-12 stsp #define GOT_ERR_NO_SPACE 9
28 a1fd68d8 2018-01-12 stsp #define GOT_ERR_BAD_OBJ_HDR 10
29 a1fd68d8 2018-01-12 stsp #define GOT_ERR_OBJ_TYPE 11
30 a1fd68d8 2018-01-12 stsp #define GOT_ERR_BAD_OBJ_DATA 12
31 d1688ce0 2019-02-05 stsp /* 13 is currently free for re-use */
32 a1fd68d8 2018-01-12 stsp #define GOT_ERR_BAD_PACKIDX 14
33 a1fd68d8 2018-01-12 stsp #define GOT_ERR_PACKIDX_CSUM 15
34 a1fd68d8 2018-01-12 stsp #define GOT_ERR_BAD_PACKFILE 16
35 a1fd68d8 2018-01-12 stsp #define GOT_ERR_NO_OBJ 17
36 a487c1d0 2018-01-14 stsp #define GOT_ERR_NOT_IMPL 18
37 3ee5fc21 2018-01-17 stsp #define GOT_ERR_OBJ_NOT_PACKED 19
38 96f5e8b3 2018-01-23 stsp #define GOT_ERR_BAD_DELTA_CHAIN 20
39 885d3e02 2018-01-27 stsp #define GOT_ERR_BAD_DELTA 21
40 885d3e02 2018-01-27 stsp #define GOT_ERR_COMPRESSION 22
41 59ece79d 2018-02-12 stsp #define GOT_ERR_BAD_OBJ_ID_STR 23
42 86c3caaf 2018-03-09 stsp #define GOT_ERR_WORKTREE_EXISTS 26
43 09fe317a 2018-03-11 stsp #define GOT_ERR_WORKTREE_META 27
44 6d9d28c3 2018-03-11 stsp #define GOT_ERR_WORKTREE_VERS 28
45 6d9d28c3 2018-03-11 stsp #define GOT_ERR_WORKTREE_BUSY 29
46 9d31a1d8 2018-03-11 stsp #define GOT_ERR_DIR_OBSTRUCTED 30
47 9d31a1d8 2018-03-11 stsp #define GOT_ERR_FILE_OBSTRUCTED 31
48 5b7e13a7 2018-04-02 stsp #define GOT_ERR_RECURSION 32
49 2178c42e 2018-04-22 stsp #define GOT_ERR_TIMEOUT 33
50 2178c42e 2018-04-22 stsp #define GOT_ERR_INTERRUPT 34
51 2178c42e 2018-04-22 stsp #define GOT_ERR_PRIVSEP_READ 35
52 2178c42e 2018-04-22 stsp #define GOT_ERR_PRIVSEP_LEN 36
53 2178c42e 2018-04-22 stsp #define GOT_ERR_PRIVSEP_PIPE 37
54 2178c42e 2018-04-22 stsp #define GOT_ERR_PRIVSEP_NO_FD 38
55 8c580685 2018-04-22 stsp #define GOT_ERR_PRIVSEP_MSG 39
56 b419fc47 2018-04-26 stsp #define GOT_ERR_PRIVSEP_DIED 40
57 b419fc47 2018-04-26 stsp #define GOT_ERR_PRIVSEP_EXIT 41
58 0c048b15 2018-04-27 stsp #define GOT_ERR_PACK_OFFSET 42
59 54be8251 2018-06-04 stsp #define GOT_ERR_OBJ_EXISTS 43
60 54be8251 2018-06-04 stsp #define GOT_ERR_BAD_OBJ_ID 44
61 372ccdbb 2018-06-10 stsp #define GOT_ERR_ITER_NEED_MORE 45
62 9ba79e04 2018-06-11 stsp #define GOT_ERR_ITER_COMPLETED 46
63 730c718b 2018-06-21 stsp #define GOT_ERR_RANGE 47
64 89817b30 2018-11-11 stsp #define GOT_ERR_EXPECTED 48 /* for use in regress tests only */
65 99437157 2018-11-11 stsp #define GOT_ERR_CANCELLED 49
66 d1451975 2018-11-11 stsp #define GOT_ERR_NO_TREE_ENTRY 50
67 52a74475 2018-12-24 stsp #define GOT_ERR_FILEIDX_SIG 51
68 52a74475 2018-12-24 stsp #define GOT_ERR_FILEIDX_VER 52
69 52a74475 2018-12-24 stsp #define GOT_ERR_FILEIDX_CSUM 53
70 49520a32 2018-12-29 stsp #define GOT_ERR_PATH_PREFIX 54
71 be7061eb 2018-12-30 stsp #define GOT_ERR_ANCESTRY 55
72 27793341 2019-01-12 stsp #define GOT_ERR_FILEIDX_BAD 56
73 a808cfa5 2019-02-03 stsp #define GOT_ERR_BAD_REF_DATA 57
74 f5d3d7af 2019-02-05 stsp #define GOT_ERR_TREE_DUP_ENTRY 58
75 f5d3d7af 2019-02-05 stsp #define GOT_ERR_DIR_DUP_ENTRY 59
76 247140b2 2019-02-05 stsp #define GOT_ERR_NOT_WORKTREE 60
77 09589288 2019-03-10 stsp #define GOT_ERR_UUID_VERSION 61
78 09589288 2019-03-10 stsp #define GOT_ERR_UUID_INVALID 62
79 09589288 2019-03-10 stsp #define GOT_ERR_UUID 63
80 01b7ba6b 2019-03-11 stsp #define GOT_ERR_LOCKFILE_TIMEOUT 64
81 f77a24b0 2019-03-11 stsp #define GOT_ERR_BAD_REF_NAME 65
82 0c48fee2 2019-03-11 stsp #define GOT_ERR_WORKTREE_REPO 66
83 2ec1f75b 2019-03-26 stsp #define GOT_ERR_FILE_MODIFIED 67
84 2ec1f75b 2019-03-26 stsp #define GOT_ERR_FILE_STATUS 68
85 c4296144 2019-05-09 stsp #define GOT_ERR_COMMIT_CONFLICT 69
86 b249b824 2019-05-09 stsp #define GOT_ERR_BAD_REF_TYPE 70
87 4027f31a 2017-11-04 stsp
88 4027f31a 2017-11-04 stsp static const struct got_error {
89 4027f31a 2017-11-04 stsp int code;
90 4027f31a 2017-11-04 stsp const char *msg;
91 4027f31a 2017-11-04 stsp } got_errors[] = {
92 0a585a0d 2018-03-17 stsp { GOT_ERR_OK, "no error occured?!?" },
93 f334529e 2018-01-12 stsp { GOT_ERR_ERRNO, "see errno" },
94 4027f31a 2017-11-04 stsp { GOT_ERR_NOT_GIT_REPO, "no git repository found" },
95 4027f31a 2017-11-04 stsp { GOT_ERR_NOT_ABSPATH, "absolute path expected" },
96 4027f31a 2017-11-04 stsp { GOT_ERR_BAD_PATH, "bad path" },
97 4027f31a 2017-11-04 stsp { GOT_ERR_NOT_REF, "no such reference found" },
98 ab9a70b2 2017-11-06 stsp { GOT_ERR_IO, "input/output error" },
99 ab9a70b2 2017-11-06 stsp { GOT_ERR_EOF, "unexpected end of file" },
100 ab9a70b2 2017-11-06 stsp { GOT_ERR_DECOMPRESSION,"decompression failed" },
101 ab9a70b2 2017-11-06 stsp { GOT_ERR_NO_SPACE, "buffer too small" },
102 ab9a70b2 2017-11-06 stsp { GOT_ERR_BAD_OBJ_HDR, "bad object header" },
103 d1cda826 2017-11-06 stsp { GOT_ERR_OBJ_TYPE, "wrong type of object" },
104 d1cda826 2017-11-06 stsp { GOT_ERR_BAD_OBJ_DATA, "bad object data" },
105 d1688ce0 2019-02-05 stsp { 13, "unused error code" },
106 0a0a3048 2018-01-10 stsp { GOT_ERR_BAD_PACKIDX, "bad pack index file" },
107 0ebaf008 2018-01-10 stsp { GOT_ERR_PACKIDX_CSUM, "pack index file checksum error" },
108 a1fd68d8 2018-01-12 stsp { GOT_ERR_BAD_PACKFILE, "bad pack file" },
109 a1fd68d8 2018-01-12 stsp { GOT_ERR_NO_OBJ, "object not found" },
110 a487c1d0 2018-01-14 stsp { GOT_ERR_NOT_IMPL, "feature not implemented" },
111 3ee5fc21 2018-01-17 stsp { GOT_ERR_OBJ_NOT_PACKED,"object is not packed" },
112 96f5e8b3 2018-01-23 stsp { GOT_ERR_BAD_DELTA_CHAIN,"bad delta chain" },
113 59ece79d 2018-02-12 stsp { GOT_ERR_BAD_DELTA, "bad delta" },
114 59ece79d 2018-02-12 stsp { GOT_ERR_COMPRESSION, "compression failed" },
115 59ece79d 2018-02-12 stsp { GOT_ERR_BAD_OBJ_ID_STR,"bad object id string" },
116 86c3caaf 2018-03-09 stsp { GOT_ERR_WORKTREE_EXISTS,"worktree already exists" },
117 09fe317a 2018-03-11 stsp { GOT_ERR_WORKTREE_META,"bad worktree meta data" },
118 6d9d28c3 2018-03-11 stsp { GOT_ERR_WORKTREE_VERS,"unsupported worktree format version" },
119 6d9d28c3 2018-03-11 stsp { GOT_ERR_WORKTREE_BUSY,"worktree already locked" },
120 95edb37e 2019-03-28 stsp { GOT_ERR_FILE_OBSTRUCTED,"file is obstructed" },
121 5b7e13a7 2018-04-02 stsp { GOT_ERR_RECURSION, "recursion limit reached" },
122 2178c42e 2018-04-22 stsp { GOT_ERR_TIMEOUT, "operation timed out" },
123 2178c42e 2018-04-22 stsp { GOT_ERR_INTERRUPT, "operation interrupted" },
124 55afbf19 2018-09-08 stsp { GOT_ERR_PRIVSEP_READ, "no data received in imsg" },
125 55afbf19 2018-09-08 stsp { GOT_ERR_PRIVSEP_LEN, "unexpected amount of data received in imsg" },
126 55afbf19 2018-09-08 stsp { GOT_ERR_PRIVSEP_PIPE, "privsep peer process closed pipe" },
127 55afbf19 2018-09-08 stsp { GOT_ERR_PRIVSEP_NO_FD,"privsep file descriptor unavailable" },
128 4c838a52 2018-12-23 stsp { GOT_ERR_PRIVSEP_MSG, "received unexpected privsep message" },
129 54be8251 2018-06-04 stsp { GOT_ERR_PRIVSEP_DIED, "unprivileged process died unexpectedly" },
130 54be8251 2018-06-04 stsp { GOT_ERR_PRIVSEP_EXIT, "bad exit code from unprivileged process" },
131 54be8251 2018-06-04 stsp { GOT_ERR_PACK_OFFSET, "bad offset in pack file" },
132 54be8251 2018-06-04 stsp { GOT_ERR_OBJ_EXISTS, "object already exists" },
133 54be8251 2018-06-04 stsp { GOT_ERR_BAD_OBJ_ID, "bad object id" },
134 372ccdbb 2018-06-10 stsp { GOT_ERR_ITER_NEED_MORE,"more items needed to continue iteration" },
135 9ba79e04 2018-06-11 stsp { GOT_ERR_ITER_COMPLETED,"iteration completed" },
136 730c718b 2018-06-21 stsp { GOT_ERR_RANGE, "value out of range" },
137 89817b30 2018-11-11 stsp { GOT_ERR_EXPECTED, "expected an error but have no error" },
138 99437157 2018-11-11 stsp { GOT_ERR_CANCELLED, "operation in progress has been cancelled" },
139 d1451975 2018-11-11 stsp { GOT_ERR_NO_TREE_ENTRY,"no such entry found in tree" },
140 52a74475 2018-12-24 stsp { GOT_ERR_FILEIDX_SIG, "bad file index signature" },
141 52a74475 2018-12-24 stsp { GOT_ERR_FILEIDX_VER, "unknown file index format version" },
142 52a74475 2018-12-24 stsp { GOT_ERR_FILEIDX_CSUM, "bad file index checksum" },
143 49520a32 2018-12-29 stsp { GOT_ERR_PATH_PREFIX, "worktree already contains items from a "
144 49520a32 2018-12-29 stsp "different path prefix" },
145 be7061eb 2018-12-30 stsp { GOT_ERR_ANCESTRY, "specified commit does not share ancestry with "
146 be7061eb 2018-12-30 stsp "the current branch" },
147 27793341 2019-01-12 stsp { GOT_ERR_FILEIDX_BAD, "file index is corrupt" },
148 a808cfa5 2019-02-03 stsp { GOT_ERR_BAD_REF_DATA, "could not parse reference data" },
149 f5d3d7af 2019-02-05 stsp { GOT_ERR_TREE_DUP_ENTRY,"duplicate entry in tree object" },
150 f5d3d7af 2019-02-05 stsp { GOT_ERR_DIR_DUP_ENTRY,"duplicate entry in directory" },
151 247140b2 2019-02-05 stsp { GOT_ERR_NOT_WORKTREE, "no got work tree found" },
152 09589288 2019-03-10 stsp { GOT_ERR_UUID_VERSION, "bad uuid version" },
153 09589288 2019-03-10 stsp { GOT_ERR_UUID_INVALID, "uuid invalid" },
154 09589288 2019-03-10 stsp { GOT_ERR_UUID, "uuid error" },
155 01b7ba6b 2019-03-11 stsp { GOT_ERR_LOCKFILE_TIMEOUT,"lockfile timeout" },
156 f77a24b0 2019-03-11 stsp { GOT_ERR_BAD_REF_NAME, "bad reference name" },
157 0c48fee2 2019-03-11 stsp { GOT_ERR_WORKTREE_REPO,"cannot create worktree inside a git repository" },
158 2ec1f75b 2019-03-26 stsp { GOT_ERR_FILE_MODIFIED,"file contains modifications" },
159 2ec1f75b 2019-03-26 stsp { GOT_ERR_FILE_STATUS, "file has unexpected status" },
160 c4296144 2019-05-09 stsp { GOT_ERR_COMMIT_CONFLICT,"cannot commit file in conflicted status" },
161 b249b824 2019-05-09 stsp { GOT_ERR_BAD_REF_TYPE, "bad reference type" },
162 4027f31a 2017-11-04 stsp };
163 4027f31a 2017-11-04 stsp
164 0c60ce5a 2018-04-02 stsp /*
165 0c60ce5a 2018-04-02 stsp * Get an error object from the above list, for a given error code.
166 0c60ce5a 2018-04-02 stsp * The error message is fixed.
167 0c60ce5a 2018-04-02 stsp */
168 0c60ce5a 2018-04-02 stsp const struct got_error *got_error(int);
169 0c60ce5a 2018-04-02 stsp
170 0c60ce5a 2018-04-02 stsp /*
171 91a3d81f 2018-11-11 stsp * Get an error object from the above list, for a given error code.
172 91a3d81f 2018-11-11 stsp * Use the specified error message instead of the default one.
173 91a3d81f 2018-11-11 stsp * Caution: If the message buffer lives in dynamically allocated memory,
174 91a3d81f 2018-11-11 stsp * then this memory likely won't be freed.
175 91a3d81f 2018-11-11 stsp */
176 91a3d81f 2018-11-11 stsp const struct got_error *got_error_msg(int, const char *);
177 91a3d81f 2018-11-11 stsp
178 91a3d81f 2018-11-11 stsp /*
179 0c60ce5a 2018-04-02 stsp * Get a statically allocated error object with code GOT_ERR_ERRNO
180 0c60ce5a 2018-04-02 stsp * and an error message obtained from strerror(3).
181 0c60ce5a 2018-04-02 stsp */
182 25783624 2018-03-12 stsp const struct got_error *got_error_from_errno(void);
183 0c60ce5a 2018-04-02 stsp
184 0c60ce5a 2018-04-02 stsp /*
185 1a76625f 2018-10-22 stsp * Set errno to the specified error code and return a statically
186 1a76625f 2018-10-22 stsp * allocated error object with code GOT_ERR_ERRNO and an error
187 1a76625f 2018-10-22 stsp * message obtained from strerror(3).
188 1a76625f 2018-10-22 stsp */
189 1a76625f 2018-10-22 stsp const struct got_error *got_error_set_errno(int);
190 1a76625f 2018-10-22 stsp
191 1a76625f 2018-10-22 stsp /*
192 0c60ce5a 2018-04-02 stsp * If ferror(3) indicates an error status for the FILE, obtain an error
193 0c60ce5a 2018-04-02 stsp * from got_error_from_errno(). Else, obtain the error via got_error()
194 0c60ce5a 2018-04-02 stsp * with the error code provided in the second argument.
195 0c60ce5a 2018-04-02 stsp */
196 8251fdbc 2018-01-12 stsp const struct got_error *got_ferror(FILE *, int);
197 91a3d81f 2018-11-11 stsp
198 91a3d81f 2018-11-11 stsp /*
199 91a3d81f 2018-11-11 stsp * Obtain an error with code GOT_ERR_NO_OBJ and an error message which
200 91a3d81f 2018-11-11 stsp * contains the specified object ID. The message buffer is statically
201 91a3d81f 2018-11-11 stsp * allocated; future invocations of this function will overwrite the
202 91a3d81f 2018-11-11 stsp * message set during earlier invocations.
203 91a3d81f 2018-11-11 stsp */
204 91a3d81f 2018-11-11 stsp struct got_object_id; /* forward declaration */
205 91a3d81f 2018-11-11 stsp const struct got_error *got_error_no_obj(struct got_object_id *);
206 2aa0475c 2019-02-03 stsp
207 2aa0475c 2019-02-03 stsp /*
208 2aa0475c 2019-02-03 stsp * Obtain an error with code GOT_ERR_NOT_REF and an error message which
209 2aa0475c 2019-02-03 stsp * contains the specified reference name. The message buffer is statically
210 2aa0475c 2019-02-03 stsp * allocated; future invocations of this function will overwrite the
211 2aa0475c 2019-02-03 stsp * message set during earlier invocations.
212 2aa0475c 2019-02-03 stsp */
213 2aa0475c 2019-02-03 stsp const struct got_error *got_error_not_ref(const char *);
214 09589288 2019-03-10 stsp
215 09589288 2019-03-10 stsp /* Return an error based on a uuid(3) status code. */
216 09589288 2019-03-10 stsp const struct got_error *got_error_uuid(uint32_t);