source src/futils.c
Line | Flow | Count | Block(s) | Source |
---|---|---|---|---|
1 | - | /* | ||
2 | - | * Copyright (C) the libgit2 contributors. All rights reserved. | ||
3 | - | * | ||
4 | - | * This file is part of libgit2, distributed under the GNU GPL v2 with | ||
5 | - | * a Linking Exception. For full terms see the included COPYING file. | ||
6 | - | */ | ||
7 | - | |||
8 | - | #include "futils.h" | ||
9 | - | |||
10 | - | #include "global.h" | ||
11 | - | #include "strmap.h" | ||
12 | - | #include <ctype.h> | ||
13 | - | #if GIT_WIN32 | ||
14 | - | #include "win32/findfile.h" | ||
15 | - | #endif | ||
16 | - | |||
17 | 5288 | 2 | int git_futils_mkpath2file(const char *file_path, const mode_t mode) | |
18 | - | { | ||
19 | 5288 | 2 | return git_futils_mkdir( | |
20 | - | file_path, mode, | ||
21 | - | GIT_MKDIR_PATH | GIT_MKDIR_SKIP_LAST | GIT_MKDIR_VERIFY_DIR); | ||
22 | - | } | ||
23 | - | |||
24 | 6695 | 2 | int git_futils_mktmp(git_buf *path_out, const char *filename, mode_t mode) | |
25 | - | { | ||
26 | - | int fd; | ||
27 | - | mode_t mask; | ||
28 | - | |||
29 | 6695 | 2,3 | p_umask(mask = p_umask(0)); | |
30 | - | |||
31 | 6695 | 4 | git_buf_sets(path_out, filename); | |
32 | 6695 | 5 | git_buf_puts(path_out, "_git2_XXXXXX"); | |
33 | - | |||
34 | 6695 | 6,7 | if (git_buf_oom(path_out)) | |
35 | ##### | 8 | return -1; | |
36 | - | |||
37 | 6695 | 9,10 | if ((fd = p_mkstemp(path_out->ptr)) < 0) { | |
38 | ##### | 11 | git_error_set(GIT_ERROR_OS, | |
39 | - | "failed to create temporary file '%s'", path_out->ptr); | ||
40 | ##### | 12 | return -1; | |
41 | - | } | ||
42 | - | |||
43 | 6695 | 13,14 | if (p_chmod(path_out->ptr, (mode & ~mask))) { | |
44 | ##### | 15 | git_error_set(GIT_ERROR_OS, | |
45 | - | "failed to set permissions on file '%s'", path_out->ptr); | ||
46 | ##### | 16 | return -1; | |
47 | - | } | ||
48 | - | |||
49 | 6695 | 17 | return fd; | |
50 | - | } | ||
51 | - | |||
52 | 73 | 2 | int git_futils_creat_withpath(const char *path, const mode_t dirmode, const mode_t mode) | |
53 | - | { | ||
54 | - | int fd; | ||
55 | - | |||
56 | 73 | 2,3 | if (git_futils_mkpath2file(path, dirmode) < 0) | |
57 | ##### | 4 | return -1; | |
58 | - | |||
59 | 73 | 5 | fd = p_creat(path, mode); | |
60 | 73 | 6 | if (fd < 0) { | |
61 | ##### | 7 | git_error_set(GIT_ERROR_OS, "failed to create file '%s'", path); | |
62 | ##### | 8 | return -1; | |
63 | - | } | ||
64 | - | |||
65 | 73 | 9 | return fd; | |
66 | - | } | ||
67 | - | |||
68 | 10325 | 2 | int git_futils_creat_locked(const char *path, const mode_t mode) | |
69 | - | { | ||
70 | 10325 | 2 | int fd = p_open(path, O_WRONLY | O_CREAT | O_EXCL | O_BINARY | O_CLOEXEC, | |
71 | - | mode); | ||
72 | - | |||
73 | 10326 | 3 | if (fd < 0) { | |
74 | 3 | 4 | int error = errno; | |
75 | 3 | 5 | git_error_set(GIT_ERROR_OS, "failed to create locked file '%s'", path); | |
76 | 3 | 6 | switch (error) { | |
77 | - | case EEXIST: | ||
78 | 3 | 7 | return GIT_ELOCKED; | |
79 | - | case ENOENT: | ||
80 | ##### | 8 | return GIT_ENOTFOUND; | |
81 | - | default: | ||
82 | ##### | 9 | return -1; | |
83 | - | } | ||
84 | - | } | ||
85 | - | |||
86 | 10323 | 10 | return fd; | |
87 | - | } | ||
88 | - | |||
89 | 3494 | 2 | int git_futils_creat_locked_withpath(const char *path, const mode_t dirmode, const mode_t mode) | |
90 | - | { | ||
91 | 3494 | 2,3 | if (git_futils_mkpath2file(path, dirmode) < 0) | |
92 | ##### | 4 | return -1; | |
93 | - | |||
94 | 3493 | 5 | return git_futils_creat_locked(path, mode); | |
95 | - | } | ||
96 | - | |||
97 | 128386 | 2 | int git_futils_open_ro(const char *path) | |
98 | - | { | ||
99 | 128386 | 2 | int fd = p_open(path, O_RDONLY); | |
100 | 128430 | 3 | if (fd < 0) | |
101 | 1 | 4,5 | return git_path_set_error(errno, path, "open"); | |
102 | 128429 | 6 | return fd; | |
103 | - | } | ||
104 | - | |||
105 | 117 | 2 | int git_futils_truncate(const char *path, int mode) | |
106 | - | { | ||
107 | 117 | 2 | int fd = p_open(path, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, mode); | |
108 | 117 | 3 | if (fd < 0) | |
109 | ##### | 4,5 | return git_path_set_error(errno, path, "open"); | |
110 | - | |||
111 | 117 | 6 | close(fd); | |
112 | 117 | 7 | return 0; | |
113 | - | } | ||
114 | - | |||
115 | 435 | 2 | int git_futils_filesize(uint64_t *out, git_file fd) | |
116 | - | { | ||
117 | - | struct stat sb; | ||
118 | - | |||
119 | 435 | 2,3 | if (p_fstat(fd, &sb)) { | |
120 | ##### | 4 | git_error_set(GIT_ERROR_OS, "failed to stat file descriptor"); | |
121 | ##### | 5 | return -1; | |
122 | - | } | ||
123 | - | |||
124 | 435 | 6 | if (sb.st_size < 0) { | |
125 | ##### | 7 | git_error_set(GIT_ERROR_INVALID, "invalid file size"); | |
126 | ##### | 8 | return -1; | |
127 | - | } | ||
128 | - | |||
129 | 435 | 9 | *out = sb.st_size; | |
130 | 435 | 9 | return 0; | |
131 | - | } | ||
132 | - | |||
133 | 18094 | 2 | mode_t git_futils_canonical_mode(mode_t raw_mode) | |
134 | - | { | ||
135 | 18094 | 2 | if (S_ISREG(raw_mode)) | |
136 | 16692 | 3-6 | return S_IFREG | GIT_PERMS_CANONICAL(raw_mode); | |
137 | 1402 | 7 | else if (S_ISLNK(raw_mode)) | |
138 | 41 | 8 | return S_IFLNK; | |
139 | 1361 | 9 | else if (S_ISGITLINK(raw_mode)) | |
140 | 194 | 10 | return S_IFGITLINK; | |
141 | 1167 | 11 | else if (S_ISDIR(raw_mode)) | |
142 | 1164 | 12 | return S_IFDIR; | |
143 | - | else | ||
144 | 3 | 13 | return 0; | |
145 | - | } | ||
146 | - | |||
147 | 104229 | 2 | int git_futils_readbuffer_fd(git_buf *buf, git_file fd, size_t len) | |
148 | - | { | ||
149 | 104229 | 2 | ssize_t read_size = 0; | |
150 | - | size_t alloc_len; | ||
151 | - | |||
152 | 104229 | 2 | git_buf_clear(buf); | |
153 | - | |||
154 | 104343 | 3,4 | if (!git__is_ssizet(len)) { | |
155 | ##### | 5 | git_error_set(GIT_ERROR_INVALID, "read too large"); | |
156 | 46 | 6 | return -1; | |
157 | - | } | ||
158 | - | |||
159 | 104343 | 7-13 | GIT_ERROR_CHECK_ALLOC_ADD(&alloc_len, len, 1); | |
160 | 104508 | 14,15 | if (git_buf_grow(buf, alloc_len) < 0) | |
161 | ##### | 16 | return -1; | |
162 | - | |||
163 | - | /* p_read loops internally to read len bytes */ | ||
164 | 104508 | 17 | read_size = p_read(fd, buf->ptr, len); | |
165 | - | |||
166 | 104487 | 18 | if (read_size != (ssize_t)len) { | |
167 | ##### | 19 | git_error_set(GIT_ERROR_OS, "failed to read descriptor"); | |
168 | ##### | 20 | git_buf_dispose(buf); | |
169 | ##### | 21 | return -1; | |
170 | - | } | ||
171 | - | |||
172 | 104487 | 22 | buf->ptr[read_size] = '\0'; | |
173 | 104487 | 22 | buf->size = read_size; | |
174 | - | |||
175 | 104487 | 22 | return 0; | |
176 | - | } | ||
177 | - | |||
178 | - | 2 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files)int git_futils_readbuffer_updated( | |
179 | - | git_buf *out, const char *path, git_oid *checksum, int *updated) | ||
180 | - | { | ||
181 | - | int error; | ||
182 | - | git_file fd; | ||
183 | - | struct stat st; | ||
184 | - | 2 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_buf buf = GIT_BUF_INIT; | |
185 | - | git_oid checksum_new; | ||
186 | - | |||
187 | - | 2-5 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) assert(out && path && *path); | |
188 | - | |||
189 | - | 6 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (updated != NULL) | |
190 | - | 7 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) *updated = 0; | |
191 | - | |||
192 | - | 8,9 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (p_stat(path, &st) < 0) | |
193 | - | 10,11 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return git_path_set_error(errno, path, "stat"); | |
194 | - | |||
195 | - | |||
196 | - | 12 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (S_ISDIR(st.st_mode)) { | |
197 | - | 13 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_error_set(GIT_ERROR_INVALID, "requested file is a directory"); | |
198 | - | 14 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return GIT_ENOTFOUND; | |
199 | - | } | ||
200 | - | |||
201 | - | 15,16 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (!git__is_sizet(st.st_size+1)) { | |
202 | - | 17 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_error_set(GIT_ERROR_OS, "invalid regular file stat for '%s'", path); | |
203 | - | 18 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return -1; | |
204 | - | } | ||
205 | - | |||
206 | - | 19,20 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if ((fd = git_futils_open_ro(path)) < 0) | |
207 | - | 21 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return fd; | |
208 | - | |||
209 | - | 22,23 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (git_futils_readbuffer_fd(&buf, fd, (size_t)st.st_size) < 0) { | |
210 | - | 24 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) p_close(fd); | |
211 | - | 25 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return -1; | |
212 | - | } | ||
213 | - | |||
214 | - | 26 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) p_close(fd); | |
215 | - | |||
216 | - | 27 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (checksum) { | |
217 | - | 28,29 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if ((error = git_hash_buf(&checksum_new, buf.ptr, buf.size)) < 0) { | |
218 | - | 30 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_buf_dispose(&buf); | |
219 | - | 31 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return error; | |
220 | - | } | ||
221 | - | |||
222 | - | /* | ||
223 | - | * If we were given a checksum, we only want to use it if it's different | ||
224 | - | */ | ||
225 | - | 32,33 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (!git_oid__cmp(checksum, &checksum_new)) { | |
226 | - | 34 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_buf_dispose(&buf); | |
227 | - | 35 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (updated) | |
228 | - | 36 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) *updated = 0; | |
229 | - | |||
230 | - | 37 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return 0; | |
231 | - | } | ||
232 | - | |||
233 | - | 38 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_oid_cpy(checksum, &checksum_new); | |
234 | - | } | ||
235 | - | |||
236 | - | /* | ||
237 | - | * If we're here, the file did change, or the user didn't have an old version | ||
238 | - | */ | ||
239 | - | 39 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) if (updated != NULL) | |
240 | - | 40 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) *updated = 1; | |
241 | - | |||
242 | - | 41 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_buf_swap(out, &buf); | |
243 | - | 42 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) git_buf_dispose(&buf); | |
244 | - | |||
245 | - | 43 | suppressed: function cannot be solved git_futils_readbuffer_updated (automatic due to inconsistent arc counts in .gcda files) return 0; | |
246 | - | } | ||
247 | - | |||
248 | 144636 | 2 | int git_futils_readbuffer(git_buf *buf, const char *path) | |
249 | - | { | ||
250 | 144636 | 2 | return git_futils_readbuffer_updated(buf, path, NULL, NULL); | |
251 | - | } | ||
252 | - | |||
253 | 2386 | 2 | int git_futils_writebuffer( | |
254 | - | const git_buf *buf, const char *path, int flags, mode_t mode) | ||
255 | - | { | ||
256 | 2386 | 2 | int fd, do_fsync = 0, error = 0; | |
257 | - | |||
258 | 2386 | 2 | if (!flags) | |
259 | 505 | 3 | flags = O_CREAT | O_TRUNC | O_WRONLY; | |
260 | - | |||
261 | 2386 | 4 | if ((flags & O_FSYNC) != 0) | |
262 | 2 | 5 | do_fsync = 1; | |
263 | - | |||
264 | 2386 | 6 | flags &= ~O_FSYNC; | |
265 | - | |||
266 | 2386 | 6 | if (!mode) | |
267 | 13 | 7 | mode = GIT_FILEMODE_BLOB; | |
268 | - | |||
269 | 2386 | 8,9 | if ((fd = p_open(path, flags, mode)) < 0) { | |
270 | ##### | 10 | git_error_set(GIT_ERROR_OS, "could not open '%s' for writing", path); | |
271 | ##### | 11 | return fd; | |
272 | - | } | ||
273 | - | |||
274 | 2386 | 12-15 | if ((error = p_write(fd, git_buf_cstr(buf), git_buf_len(buf))) < 0) { | |
275 | ##### | 16 | git_error_set(GIT_ERROR_OS, "could not write to '%s'", path); | |
276 | ##### | 17 | (void)p_close(fd); | |
277 | ##### | 18 | return error; | |
278 | - | } | ||
279 | - | |||
280 | 2386 | 19-21 | if (do_fsync && (error = p_fsync(fd)) < 0) { | |
281 | ##### | 22 | git_error_set(GIT_ERROR_OS, "could not fsync '%s'", path); | |
282 | ##### | 23 | p_close(fd); | |
283 | ##### | 24 | return error; | |
284 | - | } | ||
285 | - | |||
286 | 2386 | 25,26 | if ((error = p_close(fd)) < 0) { | |
287 | ##### | 27 | git_error_set(GIT_ERROR_OS, "error while closing '%s'", path); | |
288 | ##### | 28 | return error; | |
289 | - | } | ||
290 | - | |||
291 | 2386 | 29,30 | if (do_fsync && (flags & O_CREAT)) | |
292 | 2 | 31 | error = git_futils_fsync_parent(path); | |
293 | - | |||
294 | 2386 | 32 | return error; | |
295 | - | } | ||
296 | - | |||
297 | ##### | 2 | int git_futils_mv_withpath(const char *from, const char *to, const mode_t dirmode) | |
298 | - | { | ||
299 | ##### | 2,3 | if (git_futils_mkpath2file(to, dirmode) < 0) | |
300 | ##### | 4 | return -1; | |
301 | - | |||
302 | ##### | 5,6 | if (p_rename(from, to) < 0) { | |
303 | ##### | 7 | git_error_set(GIT_ERROR_OS, "failed to rename '%s' to '%s'", from, to); | |
304 | ##### | 8 | return -1; | |
305 | - | } | ||
306 | - | |||
307 | ##### | 9 | return 0; | |
308 | - | } | ||
309 | - | |||
310 | 5335 | 2 | int git_futils_mmap_ro(git_map *out, git_file fd, off64_t begin, size_t len) | |
311 | - | { | ||
312 | 5335 | 2 | return p_mmap(out, len, GIT_PROT_READ, GIT_MAP_SHARED, fd, begin); | |
313 | - | } | ||
314 | - | |||
315 | 49 | 2 | int git_futils_mmap_ro_file(git_map *out, const char *path) | |
316 | - | { | ||
317 | 49 | 2 | git_file fd = git_futils_open_ro(path); | |
318 | - | uint64_t len; | ||
319 | - | int result; | ||
320 | - | |||
321 | 49 | 3 | if (fd < 0) | |
322 | ##### | 4 | return fd; | |
323 | - | |||
324 | 49 | 5,6 | if ((result = git_futils_filesize(&len, fd)) < 0) | |
325 | ##### | 7 | goto out; | |
326 | - | |||
327 | 49 | 8,9 | if (!git__is_sizet(len)) { | |
328 | ##### | 10 | git_error_set(GIT_ERROR_OS, "file `%s` too large to mmap", path); | |
329 | ##### | 11 | result = -1; | |
330 | ##### | 11 | goto out; | |
331 | - | } | ||
332 | - | |||
333 | 49 | 12 | result = git_futils_mmap_ro(out, fd, 0, (size_t)len); | |
334 | - | out: | ||
335 | 49 | 13 | p_close(fd); | |
336 | 49 | 14 | return result; | |
337 | - | } | ||
338 | - | |||
339 | 5335 | 2 | void git_futils_mmap_free(git_map *out) | |
340 | - | { | ||
341 | 5335 | 2 | p_munmap(out); | |
342 | 5335 | 3 | } | |
343 | - | |||
344 | 6709 | 2 | GIT_INLINE(int) mkdir_validate_dir( | |
345 | - | const char *path, | ||
346 | - | struct stat *st, | ||
347 | - | mode_t mode, | ||
348 | - | uint32_t flags, | ||
349 | - | struct git_futils_mkdir_options *opts) | ||
350 | - | { | ||
351 | - | /* with exclusive create, existing dir is an error */ | ||
352 | 6709 | 2 | if ((flags & GIT_MKDIR_EXCL) != 0) { | |
353 | 8 | 3 | git_error_set(GIT_ERROR_FILESYSTEM, | |
354 | - | "failed to make directory '%s': directory exists", path); | ||
355 | 8 | 4 | return GIT_EEXISTS; | |
356 | - | } | ||
357 | - | |||
358 | 6701 | 5-7 | if ((S_ISREG(st->st_mode) && (flags & GIT_MKDIR_REMOVE_FILES)) || | |
359 | 6701 | 7,8 | (S_ISLNK(st->st_mode) && (flags & GIT_MKDIR_REMOVE_SYMLINKS))) { | |
360 | ##### | 9,10 | if (p_unlink(path) < 0) { | |
361 | ##### | 11-14 | git_error_set(GIT_ERROR_OS, "failed to remove %s '%s'", | |
362 | ##### | 11 | S_ISLNK(st->st_mode) ? "symlink" : "file", path); | |
363 | ##### | 15 | return GIT_EEXISTS; | |
364 | - | } | ||
365 | - | |||
366 | ##### | 16 | opts->perfdata.mkdir_calls++; | |
367 | - | |||
368 | ##### | 16,17,20 | if (p_mkdir(path, mode) < 0) { | |
369 | ##### | 18 | git_error_set(GIT_ERROR_OS, "failed to make directory '%s'", path); | |
370 | ##### | 19 | return GIT_EEXISTS; | |
371 | - | } | ||
372 | - | } | ||
373 | - | |||
374 | 6701 | 21 | else if (S_ISLNK(st->st_mode)) { | |
375 | - | /* Re-stat the target, make sure it's a directory */ | ||
376 | ##### | 22 | opts->perfdata.stat_calls++; | |
377 | - | |||
378 | ##### | 22,23 | if (p_stat(path, st) < 0) { | |
379 | ##### | 24 | git_error_set(GIT_ERROR_OS, "failed to make directory '%s'", path); | |
380 | ##### | 25 | return GIT_EEXISTS; | |
381 | - | } | ||
382 | - | } | ||
383 | - | |||
384 | 6701 | 26 | else if (!S_ISDIR(st->st_mode)) { | |
385 | ##### | 27 | git_error_set(GIT_ERROR_FILESYSTEM, | |
386 | - | "failed to make directory '%s': directory exists", path); | ||
387 | ##### | 28 | return GIT_EEXISTS; | |
388 | - | } | ||
389 | - | |||
390 | 6701 | 29 | return 0; | |
391 | - | } | ||
392 | - | |||
393 | 14579 | 2 | GIT_INLINE(int) mkdir_validate_mode( | |
394 | - | const char *path, | ||
395 | - | struct stat *st, | ||
396 | - | bool terminal_path, | ||
397 | - | mode_t mode, | ||
398 | - | uint32_t flags, | ||
399 | - | struct git_futils_mkdir_options *opts) | ||
400 | - | { | ||
401 | 14579 | 2-4 | if (((terminal_path && (flags & GIT_MKDIR_CHMOD) != 0) || | |
402 | 14555 | 4,5 | (flags & GIT_MKDIR_CHMOD_PATH) != 0) && st->st_mode != mode) { | |
403 | - | |||
404 | 35 | 6 | opts->perfdata.chmod_calls++; | |
405 | - | |||
406 | 35 | 6,7 | if (p_chmod(path, mode) < 0) { | |
407 | ##### | 8 | git_error_set(GIT_ERROR_OS, "failed to set permissions on '%s'", path); | |
408 | ##### | 9 | return -1; | |
409 | - | } | ||
410 | - | } | ||
411 | - | |||
412 | 14579 | 10 | return 0; | |
413 | - | } | ||
414 | - | |||
415 | 16583 | 2 | GIT_INLINE(int) mkdir_canonicalize( | |
416 | - | git_buf *path, | ||
417 | - | uint32_t flags) | ||
418 | - | { | ||
419 | - | ssize_t root_len; | ||
420 | - | |||
421 | 16583 | 2 | if (path->size == 0) { | |
422 | ##### | 3 | git_error_set(GIT_ERROR_OS, "attempt to create empty path"); | |
423 | ##### | 4 | return -1; | |
424 | - | } | ||
425 | - | |||
426 | - | /* Trim trailing slashes (except the root) */ | ||
427 | 16583 | 5,6 | if ((root_len = git_path_root(path->ptr)) < 0) | |
428 | 2634 | 7 | root_len = 0; | |
429 | - | else | ||
430 | 13949 | 8 | root_len++; | |
431 | - | |||
432 | 20005 | 9,11,12 | while (path->size > (size_t)root_len && path->ptr[path->size - 1] == '/') | |
433 | 3422 | 10 | path->ptr[--path->size] = '\0'; | |
434 | - | |||
435 | - | /* if we are not supposed to made the last element, truncate it */ | ||
436 | 16583 | 13 | if ((flags & GIT_MKDIR_SKIP_LAST2) != 0) { | |
437 | ##### | 14 | git_path_dirname_r(path, path->ptr); | |
438 | ##### | 15 | flags |= GIT_MKDIR_SKIP_LAST; | |
439 | - | } | ||
440 | 16583 | 16 | if ((flags & GIT_MKDIR_SKIP_LAST) != 0) { | |
441 | 11659 | 17 | git_path_dirname_r(path, path->ptr); | |
442 | - | } | ||
443 | - | |||
444 | - | /* We were either given the root path (or trimmed it to | ||
445 | - | * the root), we don't have anything to do. | ||
446 | - | */ | ||
447 | 16583 | 18 | if (path->size <= (size_t)root_len) | |
448 | ##### | 19 | git_buf_clear(path); | |
449 | - | |||
450 | 16583 | 20 | return 0; | |
451 | - | } | ||
452 | - | |||
453 | 6927 | 2 | int git_futils_mkdir( | |
454 | - | const char *path, | ||
455 | - | mode_t mode, | ||
456 | - | uint32_t flags) | ||
457 | - | { | ||
458 | 6927 | 2 | git_buf make_path = GIT_BUF_INIT, parent_path = GIT_BUF_INIT; | |
459 | - | const char *relative; | ||
460 | 6927 | 2 | struct git_futils_mkdir_options opts = { 0 }; | |
461 | - | struct stat st; | ||
462 | 6927 | 2 | size_t depth = 0; | |
463 | 6927 | 2 | int len = 0, root_len, error; | |
464 | - | |||
465 | 6927 | 2-5 | if ((error = git_buf_puts(&make_path, path)) < 0 || | |
466 | 6927 | 6,7 | (error = mkdir_canonicalize(&make_path, flags)) < 0 || | |
467 | 6927 | 6,8 | (error = git_buf_puts(&parent_path, make_path.ptr)) < 0 || | |
468 | 6927 | 8 | make_path.size == 0) | |
469 | - | goto done; | ||
470 | - | |||
471 | 6927 | 9 | root_len = git_path_root(make_path.ptr); | |
472 | - | |||
473 | - | /* find the first parent directory that exists. this will be used | ||
474 | - | * as the base to dirname_relative. | ||
475 | - | */ | ||
476 | 8575 | 10,31 | for (relative = make_path.ptr; parent_path.size; ) { | |
477 | 8575 | 11 | error = p_lstat(parent_path.ptr, &st); | |
478 | - | |||
479 | 8575 | 12 | if (error == 0) { | |
480 | 6229 | 13 | break; | |
481 | 2346 | 14,15 | } else if (errno != ENOENT) { | |
482 | 2 | 16 | git_error_set(GIT_ERROR_OS, "failed to stat '%s'", parent_path.ptr); | |
483 | 2 | 17 | error = -1; | |
484 | 2 | 17 | goto done; | |
485 | - | } | ||
486 | - | |||
487 | 2344 | 18 | depth++; | |
488 | - | |||
489 | - | /* examine the parent of the current path */ | ||
490 | 2344 | 18,19 | if ((len = git_path_dirname_r(&parent_path, parent_path.ptr)) < 0) { | |
491 | ##### | 20 | error = len; | |
492 | ##### | 20 | goto done; | |
493 | - | } | ||
494 | - | |||
495 | 2344 | 21,22 | assert(len); | |
496 | - | |||
497 | - | /* | ||
498 | - | * We've walked all the given path's parents and it's either relative | ||
499 | - | * (the parent is simply '.') or rooted (the length is less than or | ||
500 | - | * equal to length of the root path). The path may be less than the | ||
501 | - | * root path length on Windows, where `C:` == `C:/`. | ||
502 | - | */ | ||
503 | 2344 | 23-25 | if ((len == 1 && parent_path.ptr[0] == '.') || | |
504 | 2006 | 26,27 | (len == 1 && parent_path.ptr[0] == '/') || | |
505 | - | len <= root_len) { | ||
506 | 338 | 28 | relative = make_path.ptr; | |
507 | 338 | 28 | break; | |
508 | - | } | ||
509 | - | |||
510 | 2006 | 29 | relative = make_path.ptr + len + 1; | |
511 | - | |||
512 | - | /* not recursive? just make this directory relative to its parent. */ | ||
513 | 2006 | 29 | if ((flags & GIT_MKDIR_PATH) == 0) | |
514 | 358 | 30 | break; | |
515 | - | } | ||
516 | - | |||
517 | - | /* we found an item at the location we're trying to create, | ||
518 | - | * validate it. | ||
519 | - | */ | ||
520 | 6925 | 32 | if (depth == 0) { | |
521 | 5358 | 33 | error = mkdir_validate_dir(make_path.ptr, &st, mode, flags, &opts); | |
522 | - | |||
523 | 5358 | 34 | if (!error) | |
524 | 5353 | 35 | error = mkdir_validate_mode( | |
525 | 5353 | 35 | make_path.ptr, &st, true, mode, flags, &opts); | |
526 | - | |||
527 | 5358 | 36 | goto done; | |
528 | - | } | ||
529 | - | |||
530 | - | /* we already took `SKIP_LAST` and `SKIP_LAST2` into account when | ||
531 | - | * canonicalizing `make_path`. | ||
532 | - | */ | ||
533 | 1567 | 37 | flags &= ~(GIT_MKDIR_SKIP_LAST2 | GIT_MKDIR_SKIP_LAST); | |
534 | - | |||
535 | 1567 | 37-40 | error = git_futils_mkdir_relative(relative, | |
536 | 1567 | 37 | parent_path.size ? parent_path.ptr : NULL, mode, flags, &opts); | |
537 | - | |||
538 | - | done: | ||
539 | 6927 | 41 | git_buf_dispose(&make_path); | |
540 | 6926 | 42 | git_buf_dispose(&parent_path); | |
541 | 6926 | 43 | return error; | |
542 | - | } | ||
543 | - | |||
544 | 117 | 2 | int git_futils_mkdir_r(const char *path, const mode_t mode) | |
545 | - | { | ||
546 | 117 | 2 | return git_futils_mkdir(path, mode, GIT_MKDIR_PATH); | |
547 | - | } | ||
548 | - | |||
549 | 9656 | 2 | int git_futils_mkdir_relative( | |
550 | - | const char *relative_path, | ||
551 | - | const char *base, | ||
552 | - | mode_t mode, | ||
553 | - | uint32_t flags, | ||
554 | - | struct git_futils_mkdir_options *opts) | ||
555 | - | { | ||
556 | 9656 | 2 | git_buf make_path = GIT_BUF_INIT; | |
557 | 9656 | 2 | ssize_t root = 0, min_root_len; | |
558 | 9656 | 2 | char lastch = '/', *tail; | |
559 | - | struct stat st; | ||
560 | 9656 | 2 | struct git_futils_mkdir_options empty_opts = {0}; | |
561 | - | int error; | ||
562 | - | |||
563 | 9656 | 2 | if (!opts) | |
564 | 5169 | 3 | opts = &empty_opts; | |
565 | - | |||
566 | - | /* build path and find "root" where we should start calling mkdir */ | ||
567 | 9656 | 4,5 | if (git_path_join_unrooted(&make_path, relative_path, base, &root) < 0) | |
568 | ##### | 6 | return -1; | |
569 | - | |||
570 | 9656 | 7-9 | if ((error = mkdir_canonicalize(&make_path, flags)) < 0 || | |
571 | 9656 | 9 | make_path.size == 0) | |
572 | - | goto done; | ||
573 | - | |||
574 | - | /* if we are not supposed to make the whole path, reset root */ | ||
575 | 9656 | 10 | if ((flags & GIT_MKDIR_PATH) == 0) | |
576 | 663 | 11,12 | root = git_buf_rfind(&make_path, '/'); | |
577 | - | |||
578 | - | /* advance root past drive name or network mount prefix */ | ||
579 | 9656 | 13 | min_root_len = git_path_root(make_path.ptr); | |
580 | 9656 | 14 | if (root < min_root_len) | |
581 | ##### | 15 | root = min_root_len; | |
582 | 11649 | 16,18,19 | while (root >= 0 && make_path.ptr[root] == '/') | |
583 | 1993 | 17 | ++root; | |
584 | - | |||
585 | - | /* clip root to make_path length */ | ||
586 | 9656 | 20 | if (root > (ssize_t)make_path.size) | |
587 | 8 | 21 | root = (ssize_t)make_path.size; /* i.e. NUL byte of string */ | |
588 | 9656 | 22 | if (root < 0) | |
589 | 5 | 23 | root = 0; | |
590 | - | |||
591 | - | /* walk down tail of path making each directory */ | ||
592 | 19128 | 24,75,76 | for (tail = &make_path.ptr[root]; *tail; *tail = lastch) { | |
593 | 9481 | 25 | bool mkdir_attempted = false; | |
594 | - | |||
595 | - | /* advance tail to include next path component */ | ||
596 | 11910 | 25,27 | while (*tail == '/') | |
597 | 2429 | 26 | tail++; | |
598 | 49644 | 28,30,31 | while (*tail && *tail != '/') | |
599 | 40163 | 29 | tail++; | |
600 | - | |||
601 | - | /* truncate path at next component */ | ||
602 | 9481 | 32 | lastch = *tail; | |
603 | 9481 | 32 | *tail = '\0'; | |
604 | 9481 | 32 | st.st_mode = 0; | |
605 | - | |||
606 | 9481 | 32-34 | if (opts->dir_map && git_strmap_exists(opts->dir_map, make_path.ptr)) | |
607 | 246 | 35 | continue; | |
608 | - | |||
609 | - | /* See what's going on with this path component */ | ||
610 | 9235 | 36 | opts->perfdata.stat_calls++; | |
611 | - | |||
612 | - | retry_lstat: | ||
613 | 9235 | 37,38 | if (p_lstat(make_path.ptr, &st) < 0) { | |
614 | 7884 | 39-41 | if (mkdir_attempted || errno != ENOENT) { | |
615 | ##### | 42 | git_error_set(GIT_ERROR_OS, "cannot access component in path '%s'", make_path.ptr); | |
616 | ##### | 43 | error = -1; | |
617 | ##### | 43 | goto done; | |
618 | - | } | ||
619 | - | |||
620 | 7884 | 44 | git_error_clear(); | |
621 | 7884 | 45 | opts->perfdata.mkdir_calls++; | |
622 | 7884 | 45 | mkdir_attempted = true; | |
623 | 7884 | 45,46 | if (p_mkdir(make_path.ptr, mode) < 0) { | |
624 | 6 | 47,48 | if (errno == EEXIST) | |
625 | ##### | 49 | goto retry_lstat; | |
626 | 6 | 50 | git_error_set(GIT_ERROR_OS, "failed to make directory '%s'", make_path.ptr); | |
627 | 6 | 51 | error = -1; | |
628 | 6 | 51 | goto done; | |
629 | - | } | ||
630 | - | } else { | ||
631 | 1351 | 52,53 | if ((error = mkdir_validate_dir( | |
632 | 1351 | 52 | make_path.ptr, &st, mode, flags, opts)) < 0) | |
633 | 3 | 54 | goto done; | |
634 | - | } | ||
635 | - | |||
636 | - | /* chmod if requested and necessary */ | ||
637 | 9226 | 55,55,56 | if ((error = mkdir_validate_mode( | |
638 | 9226 | 55 | make_path.ptr, &st, (lastch == '\0'), mode, flags, opts)) < 0) | |
639 | ##### | 57 | goto done; | |
640 | - | |||
641 | 9226 | 58,59 | if (opts->dir_map && opts->pool) { | |
642 | - | char *cache_path; | ||
643 | - | size_t alloc_size; | ||
644 | - | |||
645 | 192 | 60-66,74 | GIT_ERROR_CHECK_ALLOC_ADD(&alloc_size, make_path.size, 1); | |
646 | 192 | 67 | cache_path = git_pool_malloc(opts->pool, alloc_size); | |
647 | 192 | 68,69 | GIT_ERROR_CHECK_ALLOC(cache_path); | |
648 | - | |||
649 | 192 | 70 | memcpy(cache_path, make_path.ptr, make_path.size + 1); | |
650 | - | |||
651 | 192 | 70,71 | if ((error = git_strmap_set(opts->dir_map, cache_path, cache_path)) < 0) | |
652 | 192 | 72,73 | goto done; | |
653 | - | } | ||
654 | - | } | ||
655 | - | |||
656 | 9647 | 77 | error = 0; | |
657 | - | |||
658 | - | /* check that full path really is a directory if requested & needed */ | ||
659 | 9647 | 77,78 | if ((flags & GIT_MKDIR_VERIFY_DIR) != 0 && | |
660 | - | lastch != '\0') { | ||
661 | 2573 | 79 | opts->perfdata.stat_calls++; | |
662 | - | |||
663 | 2573 | 79-81 | if (p_stat(make_path.ptr, &st) < 0 || !S_ISDIR(st.st_mode)) { | |
664 | ##### | 82 | git_error_set(GIT_ERROR_OS, "path is not a directory '%s'", | |
665 | - | make_path.ptr); | ||
666 | ##### | 83 | error = GIT_ENOTFOUND; | |
667 | - | } | ||
668 | - | } | ||
669 | - | |||
670 | - | done: | ||
671 | 9656 | 84 | git_buf_dispose(&make_path); | |
672 | 9656 | 85 | return error; | |
673 | - | } | ||
674 | - | |||
675 | - | typedef struct { | ||
676 | - | const char *base; | ||
677 | - | size_t baselen; | ||
678 | - | uint32_t flags; | ||
679 | - | int depth; | ||
680 | - | } futils__rmdir_data; | ||
681 | - | |||
682 | - | #define FUTILS_MAX_DEPTH 100 | ||
683 | - | |||
684 | 3 | 2 | static int futils__error_cannot_rmdir(const char *path, const char *filemsg) | |
685 | - | { | ||
686 | 3 | 2 | if (filemsg) | |
687 | 3 | 3 | git_error_set(GIT_ERROR_OS, "could not remove directory '%s': %s", | |
688 | - | path, filemsg); | ||
689 | - | else | ||
690 | ##### | 4 | git_error_set(GIT_ERROR_OS, "could not remove directory '%s'", path); | |
691 | - | |||
692 | 3 | 5 | return -1; | |
693 | - | } | ||
694 | - | |||
695 | 8 | 2 | static int futils__rm_first_parent(git_buf *path, const char *ceiling) | |
696 | - | { | ||
697 | 8 | 2 | int error = GIT_ENOTFOUND; | |
698 | - | struct stat st; | ||
699 | - | |||
700 | 24 | 2,19 | while (error == GIT_ENOTFOUND) { | |
701 | 16 | 3 | git_buf_rtruncate_at_char(path, '/'); | |
702 | - | |||
703 | 16 | 4-6 | if (!path->size || git__prefixcmp(path->ptr, ceiling) != 0) | |
704 | ##### | 7 | error = 0; | |
705 | 16 | 8,9 | else if (p_lstat_posixly(path->ptr, &st) == 0) { | |
706 | 8 | 10,11 | if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) | |
707 | 8 | 12 | error = p_unlink(path->ptr); | |
708 | ##### | 13 | else if (!S_ISDIR(st.st_mode)) | |
709 | 8 | 14,15 | error = -1; /* fail to remove non-regular file */ | |
710 | 8 | 16,17 | } else if (errno != ENOTDIR) | |
711 | ##### | 18 | error = -1; | |
712 | - | } | ||
713 | - | |||
714 | 8 | 20 | if (error) | |
715 | ##### | 21 | futils__error_cannot_rmdir(path->ptr, "cannot remove parent"); | |
716 | - | |||
717 | 8 | 22 | return error; | |
718 | - | } | ||
719 | - | |||
720 | 7768 | 2 | static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path) | |
721 | - | { | ||
722 | 7768 | 2 | int error = 0; | |
723 | 7768 | 2 | futils__rmdir_data *data = opaque; | |
724 | - | struct stat st; | ||
725 | - | |||
726 | 7768 | 2 | if (data->depth > FUTILS_MAX_DEPTH) | |
727 | ##### | 3 | error = futils__error_cannot_rmdir( | |
728 | ##### | 3 | path->ptr, "directory nesting too deep"); | |
729 | - | |||
730 | 7768 | 4,5 | else if ((error = p_lstat_posixly(path->ptr, &st)) < 0) { | |
731 | 2164 | 6,7 | if (errno == ENOENT) | |
732 | 2156 | 8 | error = 0; | |
733 | 8 | 9,10 | else if (errno == ENOTDIR) { | |
734 | - | /* asked to remove a/b/c/d/e and a/b is a normal file */ | ||
735 | 8 | 11 | if ((data->flags & GIT_RMDIR_REMOVE_BLOCKERS) != 0) | |
736 | 8 | 12 | error = futils__rm_first_parent(path, data->base); | |
737 | - | else | ||
738 | 8 | 13,14 | futils__error_cannot_rmdir( | |
739 | ##### | 13 | path->ptr, "parent is not directory"); | |
740 | - | } | ||
741 | - | else | ||
742 | 2164 | 15-17 | error = git_path_set_error(errno, path->ptr, "rmdir"); | |
743 | - | } | ||
744 | - | |||
745 | 5604 | 18 | else if (S_ISDIR(st.st_mode)) { | |
746 | 1991 | 19 | data->depth++; | |
747 | - | |||
748 | 1991 | 19 | error = git_path_direach(path, 0, futils__rmdir_recurs_foreach, data); | |
749 | - | |||
750 | 1991 | 20 | data->depth--; | |
751 | - | |||
752 | 1991 | 20 | if (error < 0) | |
753 | 2 | 21 | return error; | |
754 | - | |||
755 | 1989 | 22,23 | if (data->depth == 0 && (data->flags & GIT_RMDIR_SKIP_ROOT) != 0) | |
756 | 4 | 24 | return error; | |
757 | - | |||
758 | 1985 | 25,26 | if ((error = p_rmdir(path->ptr)) < 0) { | |
759 | 7 | 27,29 | if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) != 0 && | |
760 | 7 | 28,30-33 | (errno == ENOTEMPTY || errno == EEXIST || errno == EBUSY)) | |
761 | 7 | 34 | error = 0; | |
762 | - | else | ||
763 | 1985 | 35-37 | error = git_path_set_error(errno, path->ptr, "rmdir"); | |
764 | - | } | ||
765 | - | } | ||
766 | - | |||
767 | 3613 | 38 | else if ((data->flags & GIT_RMDIR_REMOVE_FILES) != 0) { | |
768 | 2531 | 39,40 | if (p_unlink(path->ptr) < 0) | |
769 | 2531 | 41-43 | error = git_path_set_error(errno, path->ptr, "remove"); | |
770 | - | } | ||
771 | - | |||
772 | 1082 | 44 | else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0) | |
773 | 3 | 45 | error = futils__error_cannot_rmdir(path->ptr, "still present"); | |
774 | - | |||
775 | 7762 | 46 | return error; | |
776 | - | } | ||
777 | - | |||
778 | 2207 | 2 | static int futils__rmdir_empty_parent(void *opaque, const char *path) | |
779 | - | { | ||
780 | 2207 | 2 | futils__rmdir_data *data = opaque; | |
781 | 2207 | 2 | int error = 0; | |
782 | - | |||
783 | 2207 | 2 | if (strlen(path) <= data->baselen) | |
784 | 930 | 3 | error = GIT_ITEROVER; | |
785 | - | |||
786 | 1277 | 4,5 | else if (p_rmdir(path) < 0) { | |
787 | 1157 | 6 | int en = errno; | |
788 | - | |||
789 | 1157 | 7,8 | if (en == ENOENT || en == ENOTDIR) { | |
790 | - | /* do nothing */ | ||
791 | 30 | 9,10 | } else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0 && | |
792 | - | en == EBUSY) { | ||
793 | ##### | 11,12 | error = git_path_set_error(errno, path, "rmdir"); | |
794 | 30 | 13-15 | } else if (en == ENOTEMPTY || en == EEXIST || en == EBUSY) { | |
795 | 30 | 16 | error = GIT_ITEROVER; | |
796 | - | } else { | ||
797 | ##### | 17,18 | error = git_path_set_error(errno, path, "rmdir"); | |
798 | - | } | ||
799 | - | } | ||
800 | - | |||
801 | 2207 | 19 | return error; | |
802 | - | } | ||
803 | - | |||
804 | 4007 | 2 | int git_futils_rmdir_r( | |
805 | - | const char *path, const char *base, uint32_t flags) | ||
806 | - | { | ||
807 | - | int error; | ||
808 | 4007 | 2 | git_buf fullpath = GIT_BUF_INIT; | |
809 | - | futils__rmdir_data data; | ||
810 | - | |||
811 | - | /* build path and find "root" where we should start calling mkdir */ | ||
812 | 4007 | 2,3 | if (git_path_join_unrooted(&fullpath, path, base, NULL) < 0) | |
813 | ##### | 4 | return -1; | |
814 | - | |||
815 | 4007 | 5 | memset(&data, 0, sizeof(data)); | |
816 | 4007 | 5-7 | data.base = base ? base : ""; | |
817 | 4007 | 8-10 | data.baselen = base ? strlen(base) : 0; | |
818 | 4007 | 11 | data.flags = flags; | |
819 | - | |||
820 | 4007 | 11 | error = futils__rmdir_recurs_foreach(&data, &fullpath); | |
821 | - | |||
822 | - | /* remove now-empty parents if requested */ | ||
823 | 4007 | 12,13 | if (!error && (flags & GIT_RMDIR_EMPTY_PARENTS) != 0) | |
824 | 960 | 14 | error = git_path_walk_up( | |
825 | - | &fullpath, base, futils__rmdir_empty_parent, &data); | ||
826 | - | |||
827 | 4007 | 15 | if (error == GIT_ITEROVER) { | |
828 | 960 | 16 | git_error_clear(); | |
829 | 960 | 17 | error = 0; | |
830 | - | } | ||
831 | - | |||
832 | 4007 | 18 | git_buf_dispose(&fullpath); | |
833 | - | |||
834 | 4007 | 19 | return error; | |
835 | - | } | ||
836 | - | |||
837 | 1 | 2 | int git_futils_fake_symlink(const char *target, const char *path) | |
838 | - | { | ||
839 | 1 | 2 | int retcode = GIT_ERROR; | |
840 | 1 | 2 | int fd = git_futils_creat_withpath(path, 0755, 0644); | |
841 | 1 | 3 | if (fd >= 0) { | |
842 | 1 | 4 | retcode = p_write(fd, target, strlen(target)); | |
843 | 1 | 5 | p_close(fd); | |
844 | - | } | ||
845 | 1 | 6 | return retcode; | |
846 | - | } | ||
847 | - | |||
848 | 2057 | 2 | static int cp_by_fd(int ifd, int ofd, bool close_fd_when_done) | |
849 | - | { | ||
850 | 2057 | 2 | int error = 0; | |
851 | - | char buffer[FILEIO_BUFSIZE]; | ||
852 | 2057 | 2 | ssize_t len = 0; | |
853 | - | |||
854 | 4025 | 2,4-6 | while (!error && (len = p_read(ifd, buffer, sizeof(buffer))) > 0) | |
855 | - | /* p_write() does not have the same semantics as write(). It loops | ||
856 | - | * internally and will return 0 when it has completed writing. | ||
857 | - | */ | ||
858 | 1968 | 3 | error = p_write(ofd, buffer, len); | |
859 | - | |||
860 | 2057 | 7 | if (len < 0) { | |
861 | ##### | 8 | git_error_set(GIT_ERROR_OS, "read error while copying file"); | |
862 | ##### | 9 | error = (int)len; | |
863 | - | } | ||
864 | - | |||
865 | 2057 | 10 | if (error < 0) | |
866 | ##### | 11 | git_error_set(GIT_ERROR_OS, "write error while copying file"); | |
867 | - | |||
868 | 2057 | 12 | if (close_fd_when_done) { | |
869 | 2057 | 13 | p_close(ifd); | |
870 | 2057 | 14 | p_close(ofd); | |
871 | - | } | ||
872 | - | |||
873 | 2057 | 15 | return error; | |
874 | - | } | ||
875 | - | |||
876 | 2057 | 2 | int git_futils_cp(const char *from, const char *to, mode_t filemode) | |
877 | - | { | ||
878 | - | int ifd, ofd; | ||
879 | - | |||
880 | 2057 | 2,3 | if ((ifd = git_futils_open_ro(from)) < 0) | |
881 | ##### | 4 | return ifd; | |
882 | - | |||
883 | 2057 | 5,6 | if ((ofd = p_open(to, O_WRONLY | O_CREAT | O_EXCL, filemode)) < 0) { | |
884 | ##### | 7 | p_close(ifd); | |
885 | ##### | 8,9 | return git_path_set_error(errno, to, "open for writing"); | |
886 | - | } | ||
887 | - | |||
888 | 2057 | 10 | return cp_by_fd(ifd, ofd, true); | |
889 | - | } | ||
890 | - | |||
891 | 5570 | 2 | int git_futils_touch(const char *path, time_t *when) | |
892 | - | { | ||
893 | - | struct p_timeval times[2]; | ||
894 | - | int ret; | ||
895 | - | |||
896 | 5570 | 2-4 | times[0].tv_sec = times[1].tv_sec = when ? *when : time(NULL); | |
897 | 5570 | 5 | times[0].tv_usec = times[1].tv_usec = 0; | |
898 | - | |||
899 | 5570 | 5 | ret = p_utimes(path, times); | |
900 | - | |||
901 | 5570 | 6 | return (ret < 0) ? git_path_set_error(errno, path, "touch") : 0; | |
902 | - | } | ||
903 | - | |||
904 | 7 | 2 | static int cp_link(const char *from, const char *to, size_t link_size) | |
905 | - | { | ||
906 | 7 | 2 | int error = 0; | |
907 | - | ssize_t read_len; | ||
908 | - | char *link_data; | ||
909 | - | size_t alloc_size; | ||
910 | - | |||
911 | 7 | 2-8 | GIT_ERROR_CHECK_ALLOC_ADD(&alloc_size, link_size, 1); | |
912 | 7 | 9 | link_data = git__malloc(alloc_size); | |
913 | 7 | 10,11 | GIT_ERROR_CHECK_ALLOC(link_data); | |
914 | - | |||
915 | 7 | 12 | read_len = p_readlink(from, link_data, link_size); | |
916 | 7 | 13 | if (read_len != (ssize_t)link_size) { | |
917 | ##### | 14 | git_error_set(GIT_ERROR_OS, "failed to read symlink data for '%s'", from); | |
918 | ##### | 15 | error = -1; | |
919 | - | } | ||
920 | - | else { | ||
921 | 7 | 16 | link_data[read_len] = '\0'; | |
922 | - | |||
923 | 7 | 16,17 | if (p_symlink(link_data, to) < 0) { | |
924 | ##### | 18 | git_error_set(GIT_ERROR_OS, "could not symlink '%s' as '%s'", | |
925 | - | link_data, to); | ||
926 | ##### | 19 | error = -1; | |
927 | - | } | ||
928 | - | } | ||
929 | - | |||
930 | 7 | 20 | git__free(link_data); | |
931 | 7 | 21 | return error; | |
932 | - | } | ||
933 | - | |||
934 | - | typedef struct { | ||
935 | - | const char *to_root; | ||
936 | - | git_buf to; | ||
937 | - | ssize_t from_prefix; | ||
938 | - | uint32_t flags; | ||
939 | - | uint32_t mkdir_flags; | ||
940 | - | mode_t dirmode; | ||
941 | - | } cp_r_info; | ||
942 | - | |||
943 | - | #define GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT (1u << 10) | ||
944 | - | |||
945 | 1220 | 2 | static int _cp_r_mkdir(cp_r_info *info, git_buf *from) | |
946 | - | { | ||
947 | 1220 | 2 | int error = 0; | |
948 | - | |||
949 | - | /* create root directory the first time we need to create a directory */ | ||
950 | 1220 | 2 | if ((info->flags & GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT) == 0) { | |
951 | 30 | 3-6 | error = git_futils_mkdir( | |
952 | - | info->to_root, info->dirmode, | ||
953 | 30 | 3 | (info->flags & GIT_CPDIR_CHMOD_DIRS) ? GIT_MKDIR_CHMOD : 0); | |
954 | - | |||
955 | 30 | 7 | info->flags |= GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT; | |
956 | - | } | ||
957 | - | |||
958 | - | /* create directory with root as base to prevent excess chmods */ | ||
959 | 1220 | 8 | if (!error) | |
960 | 1220 | 9,9 | error = git_futils_mkdir_relative( | |
961 | 1220 | 9 | from->ptr + info->from_prefix, info->to_root, | |
962 | - | info->dirmode, info->mkdir_flags, NULL); | ||
963 | - | |||
964 | 1220 | 10 | return error; | |
965 | - | } | ||
966 | - | |||
967 | 2211 | 2 | static int _cp_r_callback(void *ref, git_buf *from) | |
968 | - | { | ||
969 | 2211 | 2 | int error = 0; | |
970 | 2211 | 2 | cp_r_info *info = ref; | |
971 | - | struct stat from_st, to_st; | ||
972 | 2211 | 2 | bool exists = false; | |
973 | - | |||
974 | 2211 | 2,4 | if ((info->flags & GIT_CPDIR_COPY_DOTFILES) == 0 && | |
975 | 2138 | 3 | from->ptr[git_path_basename_offset(from)] == '.') | |
976 | 2 | 5 | return 0; | |
977 | - | |||
978 | 2209 | 6,7 | if ((error = git_buf_joinpath( | |
979 | 2209 | 6 | &info->to, info->to_root, from->ptr + info->from_prefix)) < 0) | |
980 | ##### | 8 | return error; | |
981 | - | |||
982 | 2209 | 9,10 | if (!(error = git_path_lstat(info->to.ptr, &to_st))) | |
983 | 64 | 11 | exists = true; | |
984 | 2145 | 12 | else if (error != GIT_ENOTFOUND) | |
985 | ##### | 13 | return error; | |
986 | - | else { | ||
987 | 2145 | 14 | git_error_clear(); | |
988 | 2145 | 15 | error = 0; | |
989 | - | } | ||
990 | - | |||
991 | 2209 | 16,17 | if ((error = git_path_lstat(from->ptr, &from_st)) < 0) | |
992 | ##### | 18 | return error; | |
993 | - | |||
994 | 2209 | 19 | if (S_ISDIR(from_st.st_mode)) { | |
995 | 988 | 20 | mode_t oldmode = info->dirmode; | |
996 | - | |||
997 | - | /* if we are not chmod'ing, then overwrite dirmode */ | ||
998 | 988 | 20 | if ((info->flags & GIT_CPDIR_CHMOD_DIRS) == 0) | |
999 | 984 | 21 | info->dirmode = from_st.st_mode; | |
1000 | - | |||
1001 | - | /* make directory now if CREATE_EMPTY_DIRS is requested and needed */ | ||
1002 | 988 | 22,23 | if (!exists && (info->flags & GIT_CPDIR_CREATE_EMPTY_DIRS) != 0) | |
1003 | 10 | 24 | error = _cp_r_mkdir(info, from); | |
1004 | - | |||
1005 | - | /* recurse onto target directory */ | ||
1006 | 988 | 25-27 | if (!error && (!exists || S_ISDIR(to_st.st_mode))) | |
1007 | 988 | 28 | error = git_path_direach(from, 0, _cp_r_callback, info); | |
1008 | - | |||
1009 | 988 | 29 | if (oldmode != 0) | |
1010 | 985 | 30 | info->dirmode = oldmode; | |
1011 | - | |||
1012 | 988 | 31 | return error; | |
1013 | - | } | ||
1014 | - | |||
1015 | 1221 | 32 | if (exists) { | |
1016 | ##### | 33 | if ((info->flags & GIT_CPDIR_OVERWRITE) == 0) | |
1017 | ##### | 34 | return 0; | |
1018 | - | |||
1019 | ##### | 35,36 | if (p_unlink(info->to.ptr) < 0) { | |
1020 | ##### | 37 | git_error_set(GIT_ERROR_OS, "cannot overwrite existing file '%s'", | |
1021 | - | info->to.ptr); | ||
1022 | ##### | 38 | return GIT_EEXISTS; | |
1023 | - | } | ||
1024 | - | } | ||
1025 | - | |||
1026 | - | /* Done if this isn't a regular file or a symlink */ | ||
1027 | 1221 | 39,40 | if (!S_ISREG(from_st.st_mode) && | |
1028 | 9 | 40,41 | (!S_ISLNK(from_st.st_mode) || | |
1029 | 9 | 41 | (info->flags & GIT_CPDIR_COPY_SYMLINKS) == 0)) | |
1030 | 2 | 42 | return 0; | |
1031 | - | |||
1032 | - | /* Make container directory on demand if needed */ | ||
1033 | 1219 | 43-45 | if ((info->flags & GIT_CPDIR_CREATE_EMPTY_DIRS) == 0 && | |
1034 | - | (error = _cp_r_mkdir(info, from)) < 0) | ||
1035 | ##### | 46 | return error; | |
1036 | - | |||
1037 | - | /* make symlink or regular file */ | ||
1038 | 1219 | 47 | if (info->flags & GIT_CPDIR_LINK_FILES) { | |
1039 | 1039 | 48,49 | if ((error = p_link(from->ptr, info->to.ptr)) < 0) | |
1040 | 1039 | 50,51 | git_error_set(GIT_ERROR_OS, "failed to link '%s'", from->ptr); | |
1041 | 180 | 52 | } else if (S_ISLNK(from_st.st_mode)) { | |
1042 | 7 | 53 | error = cp_link(from->ptr, info->to.ptr, (size_t)from_st.st_size); | |
1043 | - | } else { | ||
1044 | 173 | 54 | mode_t usemode = from_st.st_mode; | |
1045 | - | |||
1046 | 173 | 54 | if ((info->flags & GIT_CPDIR_SIMPLE_TO_MODE) != 0) | |
1047 | 32 | 55-58 | usemode = GIT_PERMS_FOR_WRITE(usemode); | |
1048 | - | |||
1049 | 173 | 59 | error = git_futils_cp(from->ptr, info->to.ptr, usemode); | |
1050 | - | } | ||
1051 | - | |||
1052 | 1219 | 60 | return error; | |
1053 | - | } | ||
1054 | - | |||
1055 | 35 | 2 | int git_futils_cp_r( | |
1056 | - | const char *from, | ||
1057 | - | const char *to, | ||
1058 | - | uint32_t flags, | ||
1059 | - | mode_t dirmode) | ||
1060 | - | { | ||
1061 | - | int error; | ||
1062 | 35 | 2 | git_buf path = GIT_BUF_INIT; | |
1063 | - | cp_r_info info; | ||
1064 | - | |||
1065 | 35 | 2,3 | if (git_buf_joinpath(&path, from, "") < 0) /* ensure trailing slash */ | |
1066 | ##### | 4 | return -1; | |
1067 | - | |||
1068 | 35 | 5 | memset(&info, 0, sizeof(info)); | |
1069 | 35 | 5 | info.to_root = to; | |
1070 | 35 | 5 | info.flags = flags; | |
1071 | 35 | 5 | info.dirmode = dirmode; | |
1072 | 35 | 5 | info.from_prefix = path.size; | |
1073 | 35 | 5 | git_buf_init(&info.to, 0); | |
1074 | - | |||
1075 | - | /* precalculate mkdir flags */ | ||
1076 | 35 | 6 | if ((flags & GIT_CPDIR_CREATE_EMPTY_DIRS) == 0) { | |
1077 | - | /* if not creating empty dirs, then use mkdir to create the path on | ||
1078 | - | * demand right before files are copied. | ||
1079 | - | */ | ||
1080 | 33 | 7 | info.mkdir_flags = GIT_MKDIR_PATH | GIT_MKDIR_SKIP_LAST; | |
1081 | 33 | 7 | if ((flags & GIT_CPDIR_CHMOD_DIRS) != 0) | |
1082 | 33 | 8,9 | info.mkdir_flags |= GIT_MKDIR_CHMOD_PATH; | |
1083 | - | } else { | ||
1084 | - | /* otherwise, we will do simple mkdir as directories are encountered */ | ||
1085 | 2 | 10-13 | info.mkdir_flags = | |
1086 | 2 | 10 | ((flags & GIT_CPDIR_CHMOD_DIRS) != 0) ? GIT_MKDIR_CHMOD : 0; | |
1087 | - | } | ||
1088 | - | |||
1089 | 35 | 14 | error = _cp_r_callback(&info, &path); | |
1090 | - | |||
1091 | 35 | 15 | git_buf_dispose(&path); | |
1092 | 35 | 16 | git_buf_dispose(&info.to); | |
1093 | - | |||
1094 | 35 | 17 | return error; | |
1095 | - | } | ||
1096 | - | |||
1097 | - | 2 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files)int git_futils_filestamp_check( | |
1098 | - | git_futils_filestamp *stamp, const char *path) | ||
1099 | - | { | ||
1100 | - | struct stat st; | ||
1101 | - | |||
1102 | - | /* if the stamp is NULL, then always reload */ | ||
1103 | - | 2 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) if (stamp == NULL) | |
1104 | - | 3 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) return 1; | |
1105 | - | |||
1106 | - | 4,5 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) if (p_stat(path, &st) < 0) | |
1107 | - | 6 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) return GIT_ENOTFOUND; | |
1108 | - | |||
1109 | - | 7,8 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) if (stamp->mtime.tv_sec == st.st_mtime && | |
1110 | - | #if defined(GIT_USE_NSEC) | ||
1111 | - | 8,9 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->mtime.tv_nsec == st.st_mtime_nsec && | |
1112 | - | #endif | ||
1113 | - | 9,10 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->size == (uint64_t)st.st_size && | |
1114 | - | 10 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->ino == (unsigned int)st.st_ino) | |
1115 | - | 11 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) return 0; | |
1116 | - | |||
1117 | - | 12 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->mtime.tv_sec = st.st_mtime; | |
1118 | - | #if defined(GIT_USE_NSEC) | ||
1119 | - | 12 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->mtime.tv_nsec = st.st_mtime_nsec; | |
1120 | - | #endif | ||
1121 | - | 12 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->size = (uint64_t)st.st_size; | |
1122 | - | 12 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) stamp->ino = (unsigned int)st.st_ino; | |
1123 | - | |||
1124 | - | 12 | suppressed: function cannot be solved git_futils_filestamp_check (automatic due to inconsistent arc counts in .gcda files) return 1; | |
1125 | - | } | ||
1126 | - | |||
1127 | 6747 | 2 | void git_futils_filestamp_set( | |
1128 | - | git_futils_filestamp *target, const git_futils_filestamp *source) | ||
1129 | - | { | ||
1130 | 6747 | 2,3 | assert(target); | |
1131 | - | |||
1132 | 6747 | 4 | if (source) | |
1133 | 1776 | 5 | memcpy(target, source, sizeof(*target)); | |
1134 | - | else | ||
1135 | 4971 | 6 | memset(target, 0, sizeof(*target)); | |
1136 | 6747 | 7 | } | |
1137 | - | |||
1138 | - | |||
1139 | 15217 | 2 | void git_futils_filestamp_set_from_stat( | |
1140 | - | git_futils_filestamp *stamp, struct stat *st) | ||
1141 | - | { | ||
1142 | 15217 | 2 | if (st) { | |
1143 | 15217 | 3 | stamp->mtime.tv_sec = st->st_mtime; | |
1144 | - | #if defined(GIT_USE_NSEC) | ||
1145 | 15217 | 3 | stamp->mtime.tv_nsec = st->st_mtime_nsec; | |
1146 | - | #else | ||
1147 | - | stamp->mtime.tv_nsec = 0; | ||
1148 | - | #endif | ||
1149 | 15217 | 3 | stamp->size = (uint64_t)st->st_size; | |
1150 | 15217 | 3 | stamp->ino = (unsigned int)st->st_ino; | |
1151 | - | } else { | ||
1152 | ##### | 4 | memset(stamp, 0, sizeof(*stamp)); | |
1153 | - | } | ||
1154 | 15217 | 5 | } | |
1155 | - | |||
1156 | 13 | 2 | int git_futils_fsync_dir(const char *path) | |
1157 | - | { | ||
1158 | - | #ifdef GIT_WIN32 | ||
1159 | - | GIT_UNUSED(path); | ||
1160 | - | return 0; | ||
1161 | - | #else | ||
1162 | 13 | 2 | int fd, error = -1; | |
1163 | - | |||
1164 | 13 | 2,3 | if ((fd = p_open(path, O_RDONLY)) < 0) { | |
1165 | ##### | 4 | git_error_set(GIT_ERROR_OS, "failed to open directory '%s' for fsync", path); | |
1166 | ##### | 5 | return -1; | |
1167 | - | } | ||
1168 | - | |||
1169 | 13 | 6,7 | if ((error = p_fsync(fd)) < 0) | |
1170 | ##### | 8 | git_error_set(GIT_ERROR_OS, "failed to fsync directory '%s'", path); | |
1171 | - | |||
1172 | 13 | 9 | p_close(fd); | |
1173 | 13 | 10 | return error; | |
1174 | - | #endif | ||
1175 | - | } | ||
1176 | - | |||
1177 | 13 | 2 | int git_futils_fsync_parent(const char *path) | |
1178 | - | { | ||
1179 | - | char *parent; | ||
1180 | - | int error; | ||
1181 | - | |||
1182 | 13 | 2,3 | if ((parent = git_path_dirname(path)) == NULL) | |
1183 | ##### | 4 | return -1; | |
1184 | - | |||
1185 | 13 | 5 | error = git_futils_fsync_dir(parent); | |
1186 | 13 | 6 | git__free(parent); | |
1187 | 13 | 7 | return error; | |
1188 | - | } |