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37 #include <sys/queue.h>
39 #include <rte_debug.h>
43 struct resource_list resource_list = TAILQ_HEAD_INITIALIZER(resource_list);
45 size_t resource_size(const struct resource *r)
47 return r->end - r->begin;
50 const struct resource *resource_find(const char *name)
54 TAILQ_FOREACH(r, &resource_list, next) {
57 if (!strcmp(r->name, name))
64 int resource_fwrite(const struct resource *r, FILE *f)
66 const size_t goal = resource_size(r);
69 while (total < goal) {
70 size_t wlen = fwrite(r->begin + total, 1, goal - total, f);
82 int resource_fwrite_file(const struct resource *r, const char *fname)
87 f = fopen(fname, "w");
93 ret = resource_fwrite(r, f);
98 #ifdef RTE_APP_TEST_RESOURCE_TAR
100 #include <archive_entry.h>
102 static int do_copy(struct archive *r, struct archive *w)
106 #if ARCHIVE_VERSION_NUMBER >= 3000000
114 ret = archive_read_data_block(r, &buf, &len, &off);
115 if (ret == ARCHIVE_RETRY)
118 if (ret == ARCHIVE_EOF)
121 if (ret != ARCHIVE_OK)
125 ret = archive_write_data_block(w, buf, len, off);
126 if (ret != ARCHIVE_OK && ret != ARCHIVE_RETRY)
128 } while (ret != ARCHIVE_OK);
132 int resource_untar(const struct resource *res)
136 struct archive_entry *e;
141 p = malloc(resource_size(res));
143 rte_panic("Failed to malloc %zu B\n", resource_size(res));
145 memcpy(p, res->begin, resource_size(res));
147 r = archive_read_new();
153 archive_read_support_format_all(r);
154 archive_read_support_filter_all(r);
156 w = archive_write_disk_new();
158 archive_read_free(r);
163 flags |= ARCHIVE_EXTRACT_PERM;
164 flags |= ARCHIVE_EXTRACT_FFLAGS;
165 archive_write_disk_set_options(w, flags);
166 archive_write_disk_set_standard_lookup(w);
168 ret = archive_read_open_memory(r, p, resource_size(res));
169 if (ret != ARCHIVE_OK)
173 ret = archive_read_next_header(r, &e);
174 if (ret == ARCHIVE_EOF)
176 if (ret != ARCHIVE_OK)
179 ret = archive_write_header(w, e);
180 if (ret == ARCHIVE_EOF)
182 if (ret != ARCHIVE_OK)
185 if (archive_entry_size(e) == 0)
189 if (ret != ARCHIVE_OK)
192 ret = archive_write_finish_entry(w);
193 if (ret != ARCHIVE_OK)
197 archive_write_free(w);
198 archive_read_free(r);
203 archive_write_free(w);
204 archive_read_free(r);
206 rte_panic("Failed: %s\n", archive_error_string(r));
210 int resource_rm_by_tar(const struct resource *res)
213 struct archive_entry *e;
219 p = malloc(resource_size(res));
221 rte_panic("Failed to malloc %zu B\n", resource_size(res));
223 memcpy(p, res->begin, resource_size(res));
226 * If somebody creates a file somewhere inside the extracted TAR
227 * hierarchy during a test the resource_rm_by_tar might loop
228 * infinitely. We prevent this by adding the attempts counter there.
229 * In normal case, max N iteration is done where N is the depth of
230 * the file-hierarchy.
232 while (try_again && attempts < 10000) {
233 r = archive_read_new();
239 archive_read_support_format_all(r);
240 archive_read_support_filter_all(r);
242 ret = archive_read_open_memory(r, p, resource_size(res));
243 if (ret != ARCHIVE_OK) {
244 fprintf(stderr, "Failed: %s\n",
245 archive_error_string(r));
252 ret = archive_read_next_header(r, &e);
253 if (ret == ARCHIVE_EOF)
255 if (ret != ARCHIVE_OK)
258 ret = remove(archive_entry_pathname(e));
266 /* should not usually happen: */
273 perror("Failed to remove file");
279 archive_read_free(r);
283 if (attempts >= 10000) {
284 fprintf(stderr, "Failed to remove archive\n");
293 archive_read_free(r);
296 rte_panic("Failed: %s\n", archive_error_string(r));
300 #endif /* RTE_APP_TEST_RESOURCE_TAR */
302 void resource_register(struct resource *r)
304 TAILQ_INSERT_TAIL(&resource_list, r, next);