Blob


1 /*
2 * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
3 *
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.
7 *
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.
15 */
17 /* Error codes */
18 #define GOT_ERR_OK 0
19 #define GOT_ERR_ERRNO 1
20 #define GOT_ERR_NOT_GIT_REPO 2
21 #define GOT_ERR_NOT_ABSPATH 3
22 #define GOT_ERR_BAD_PATH 4
23 #define GOT_ERR_NOT_REF 5
24 #define GOT_ERR_IO 6
25 #define GOT_ERR_EOF 7
26 #define GOT_ERR_DECOMPRESSION 8
27 #define GOT_ERR_NO_SPACE 9
28 #define GOT_ERR_BAD_OBJ_HDR 10
29 #define GOT_ERR_OBJ_TYPE 11
30 #define GOT_ERR_BAD_OBJ_DATA 12
31 /* 13 is currently free for re-use */
32 #define GOT_ERR_BAD_PACKIDX 14
33 #define GOT_ERR_PACKIDX_CSUM 15
34 #define GOT_ERR_BAD_PACKFILE 16
35 #define GOT_ERR_NO_OBJ 17
36 #define GOT_ERR_NOT_IMPL 18
37 #define GOT_ERR_OBJ_NOT_PACKED 19
38 #define GOT_ERR_BAD_DELTA_CHAIN 20
39 #define GOT_ERR_BAD_DELTA 21
40 #define GOT_ERR_COMPRESSION 22
41 #define GOT_ERR_BAD_OBJ_ID_STR 23
42 #define GOT_ERR_WORKTREE_EXISTS 26
43 #define GOT_ERR_WORKTREE_META 27
44 #define GOT_ERR_WORKTREE_VERS 28
45 #define GOT_ERR_WORKTREE_BUSY 29
46 #define GOT_ERR_DIR_OBSTRUCTED 30
47 #define GOT_ERR_FILE_OBSTRUCTED 31
48 #define GOT_ERR_RECURSION 32
49 #define GOT_ERR_TIMEOUT 33
50 #define GOT_ERR_INTERRUPT 34
51 #define GOT_ERR_PRIVSEP_READ 35
52 #define GOT_ERR_PRIVSEP_LEN 36
53 #define GOT_ERR_PRIVSEP_PIPE 37
54 #define GOT_ERR_PRIVSEP_NO_FD 38
55 #define GOT_ERR_PRIVSEP_MSG 39
56 #define GOT_ERR_PRIVSEP_DIED 40
57 #define GOT_ERR_PRIVSEP_EXIT 41
58 #define GOT_ERR_PACK_OFFSET 42
59 #define GOT_ERR_OBJ_EXISTS 43
60 #define GOT_ERR_BAD_OBJ_ID 44
61 #define GOT_ERR_ITER_NEED_MORE 45
62 #define GOT_ERR_ITER_COMPLETED 46
63 #define GOT_ERR_RANGE 47
64 #define GOT_ERR_EXPECTED 48 /* for use in regress tests only */
65 #define GOT_ERR_CANCELLED 49
66 #define GOT_ERR_NO_TREE_ENTRY 50
67 #define GOT_ERR_FILEIDX_SIG 51
68 #define GOT_ERR_FILEIDX_VER 52
69 #define GOT_ERR_FILEIDX_CSUM 53
70 #define GOT_ERR_PATH_PREFIX 54
71 #define GOT_ERR_ANCESTRY 55
72 #define GOT_ERR_FILEIDX_BAD 56
73 #define GOT_ERR_BAD_REF_DATA 57
74 #define GOT_ERR_TREE_DUP_ENTRY 58
75 #define GOT_ERR_DIR_DUP_ENTRY 59
76 #define GOT_ERR_NOT_WORKTREE 60
78 static const struct got_error {
79 int code;
80 const char *msg;
81 } got_errors[] = {
82 { GOT_ERR_OK, "no error occured?!?" },
83 { GOT_ERR_ERRNO, "see errno" },
84 { GOT_ERR_NOT_GIT_REPO, "no git repository found" },
85 { GOT_ERR_NOT_ABSPATH, "absolute path expected" },
86 { GOT_ERR_BAD_PATH, "bad path" },
87 { GOT_ERR_NOT_REF, "no such reference found" },
88 { GOT_ERR_IO, "input/output error" },
89 { GOT_ERR_EOF, "unexpected end of file" },
90 { GOT_ERR_DECOMPRESSION,"decompression failed" },
91 { GOT_ERR_NO_SPACE, "buffer too small" },
92 { GOT_ERR_BAD_OBJ_HDR, "bad object header" },
93 { GOT_ERR_OBJ_TYPE, "wrong type of object" },
94 { GOT_ERR_BAD_OBJ_DATA, "bad object data" },
95 { 13, "unused error code" },
96 { GOT_ERR_BAD_PACKIDX, "bad pack index file" },
97 { GOT_ERR_PACKIDX_CSUM, "pack index file checksum error" },
98 { GOT_ERR_BAD_PACKFILE, "bad pack file" },
99 { GOT_ERR_NO_OBJ, "object not found" },
100 { GOT_ERR_NOT_IMPL, "feature not implemented" },
101 { GOT_ERR_OBJ_NOT_PACKED,"object is not packed" },
102 { GOT_ERR_BAD_DELTA_CHAIN,"bad delta chain" },
103 { GOT_ERR_BAD_DELTA, "bad delta" },
104 { GOT_ERR_COMPRESSION, "compression failed" },
105 { GOT_ERR_BAD_OBJ_ID_STR,"bad object id string" },
106 { GOT_ERR_WORKTREE_EXISTS,"worktree already exists" },
107 { GOT_ERR_WORKTREE_META,"bad worktree meta data" },
108 { GOT_ERR_WORKTREE_VERS,"unsupported worktree format version" },
109 { GOT_ERR_WORKTREE_BUSY,"worktree already locked" },
110 { GOT_ERR_RECURSION, "recursion limit reached" },
111 { GOT_ERR_TIMEOUT, "operation timed out" },
112 { GOT_ERR_INTERRUPT, "operation interrupted" },
113 { GOT_ERR_PRIVSEP_READ, "no data received in imsg" },
114 { GOT_ERR_PRIVSEP_LEN, "unexpected amount of data received in imsg" },
115 { GOT_ERR_PRIVSEP_PIPE, "privsep peer process closed pipe" },
116 { GOT_ERR_PRIVSEP_NO_FD,"privsep file descriptor unavailable" },
117 { GOT_ERR_PRIVSEP_MSG, "received unexpected privsep message" },
118 { GOT_ERR_PRIVSEP_DIED, "unprivileged process died unexpectedly" },
119 { GOT_ERR_PRIVSEP_EXIT, "bad exit code from unprivileged process" },
120 { GOT_ERR_PACK_OFFSET, "bad offset in pack file" },
121 { GOT_ERR_OBJ_EXISTS, "object already exists" },
122 { GOT_ERR_BAD_OBJ_ID, "bad object id" },
123 { GOT_ERR_ITER_NEED_MORE,"more items needed to continue iteration" },
124 { GOT_ERR_ITER_COMPLETED,"iteration completed" },
125 { GOT_ERR_RANGE, "value out of range" },
126 { GOT_ERR_EXPECTED, "expected an error but have no error" },
127 { GOT_ERR_CANCELLED, "operation in progress has been cancelled" },
128 { GOT_ERR_NO_TREE_ENTRY,"no such entry found in tree" },
129 { GOT_ERR_FILEIDX_SIG, "bad file index signature" },
130 { GOT_ERR_FILEIDX_VER, "unknown file index format version" },
131 { GOT_ERR_FILEIDX_CSUM, "bad file index checksum" },
132 { GOT_ERR_PATH_PREFIX, "worktree already contains items from a "
133 "different path prefix" },
134 { GOT_ERR_ANCESTRY, "specified commit does not share ancestry with "
135 "the current branch" },
136 { GOT_ERR_FILEIDX_BAD, "file index is corrupt" },
137 { GOT_ERR_BAD_REF_DATA, "could not parse reference data" },
138 { GOT_ERR_TREE_DUP_ENTRY,"duplicate entry in tree object" },
139 { GOT_ERR_DIR_DUP_ENTRY,"duplicate entry in directory" },
140 { GOT_ERR_NOT_WORKTREE, "no got work tree found" },
141 };
143 /*
144 * Get an error object from the above list, for a given error code.
145 * The error message is fixed.
146 */
147 const struct got_error *got_error(int);
149 /*
150 * Get an error object from the above list, for a given error code.
151 * Use the specified error message instead of the default one.
152 * Caution: If the message buffer lives in dynamically allocated memory,
153 * then this memory likely won't be freed.
154 */
155 const struct got_error *got_error_msg(int, const char *);
157 /*
158 * Get a statically allocated error object with code GOT_ERR_ERRNO
159 * and an error message obtained from strerror(3).
160 */
161 const struct got_error *got_error_from_errno(void);
163 /*
164 * Set errno to the specified error code and return a statically
165 * allocated error object with code GOT_ERR_ERRNO and an error
166 * message obtained from strerror(3).
167 */
168 const struct got_error *got_error_set_errno(int);
170 /*
171 * If ferror(3) indicates an error status for the FILE, obtain an error
172 * from got_error_from_errno(). Else, obtain the error via got_error()
173 * with the error code provided in the second argument.
174 */
175 const struct got_error *got_ferror(FILE *, int);
177 /*
178 * Obtain an error with code GOT_ERR_NO_OBJ and an error message which
179 * contains the specified object ID. The message buffer is statically
180 * allocated; future invocations of this function will overwrite the
181 * message set during earlier invocations.
182 */
183 struct got_object_id; /* forward declaration */
184 const struct got_error *got_error_no_obj(struct got_object_id *);
186 /*
187 * Obtain an error with code GOT_ERR_NOT_REF and an error message which
188 * contains the specified reference name. The message buffer is statically
189 * allocated; future invocations of this function will overwrite the
190 * message set during earlier invocations.
191 */
192 const struct got_error *got_error_not_ref(const char *);