--- /dev/null
+/*
+ * Copyright (C) 2013 Raphaël Beamonte <raphael.beamonte@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <tap/tap.h>
+
+#include <common/utils.h>
+#include <common/common.h>
+
+/* For error.h */
+int lttng_opt_quiet = 1;
+int lttng_opt_verbose = 3;
+int lttng_opt_mi;
+
+struct valid_test_input {
+ const char *input;
+ const char *relative_part;
+ const char *absolute_part;
+};
+
+struct tree_symlink {
+ const char *orig;
+ const char *dest;
+};
+
+struct symlink_test_input {
+ const char *input;
+ const char *expected_result;
+};
+
+/* Valid test cases */
+static struct valid_test_input valid_tests_inputs[] = {
+ { "/a/b/c/d/e", "", "/a/b/c/d/e" },
+ { "/a//b//c/d/e", "", "/a/b/c/d/e" },
+ { "./a/b/c/d/e", ".", "/a/b/c/d/e" },
+ { "../a/b/c/d/../e", "..", "/a/b/c/e" },
+ { ".././a/b/c/d/./e", "..", "/a/b/c/d/e" },
+ { "../../a/b/c/d/e", "../..", "/a/b/c/d/e" },
+ { "./a/b/../c/d/../e", ".", "/a/c/e" },
+ { "../a/b/../../c/./d/./e", "..", "/c/d/e" },
+ { "../../a/b/../c/d/../../e", "../..", "/a/e" },
+ { "./a/b/c/d/../../../../e", ".", "/e" },
+ { ".././a/b/c/d/./e", "..", "/a/b/c/d/e" },
+ { "a/", ".", "/a/" },
+ { "a", ".", "/a" },
+ { "../../", "../..", "/" },
+ { "../..", "../..", "" },
+ { "../", "..", "/" },
+ { "..", "..", "" },
+ { "./", ".", "/" },
+ { ".", ".", "" },
+ { "/../a/b/c/d/e", "", "/a/b/c/d/e" },
+ { "/a/b/c/d/../../../../../e", "", "/e" },
+ { "/..", "", "/" },
+ { "/a/..", "", "/" },
+};
+char **valid_tests_expected_results;
+static const int num_valid_tests =
+ sizeof(valid_tests_inputs) / sizeof(valid_tests_inputs[0]);
+
+/* Symlinks test cases */
+char tree_origin[] = "/tmp/test_utils_expand_path.XXXXXX";
+
+static const char * const tree_dirs[] = {
+ "a",
+ "a/b",
+ "a/b/c",
+ "a/e",
+};
+static const int num_tree_dirs =
+ sizeof(tree_dirs) / sizeof(tree_dirs[0]);
+
+static struct tree_symlink tree_symlinks[] = {
+ { "a/d", "b/c/" },
+ { "a/g", "d/" },
+ { "a/b/f", "../e/" },
+ { "a/b/h", "../g/" },
+ { "a/b/k", "c/g/" },
+ { "a/b/c/g", "../../../" },
+};
+static const int num_tree_symlinks =
+ sizeof(tree_symlinks) / sizeof(tree_symlinks[0]);
+
+static struct symlink_test_input symlink_tests_inputs[] = {
+ { "a/g/../l/.", "a/b/l" },
+ { "a/g/../l/./", "a/b/l/" },
+ { "a/g/../l/..", "a/b" },
+ { "a/g/../l/../", "a/b/" },
+ { "a/b/h/g/", "" },
+};
+static const int num_symlink_tests =
+ sizeof(symlink_tests_inputs) / sizeof(symlink_tests_inputs[0]);
+
+/* Invalid test cases */
+static char *invalid_tests_inputs[] = {
+ NULL,
+};
+static const int num_invalid_tests =
+ sizeof(invalid_tests_inputs) / sizeof(invalid_tests_inputs[0]);
+
+#define PRINT_ERR(fmt, args...) \
+ fprintf(stderr, "test_utils_expand_path: error: " fmt "\n", ## args)
+
+static int prepare_valid_results(void)
+{
+ int i;
+ char *relative, *cur_path = NULL, *prev_path = NULL,
+ *pprev_path = NULL, *empty = NULL;
+ int ret = 0;
+
+ /* Prepare the relative paths */
+ cur_path = realpath(".", NULL);
+ prev_path = realpath("..", NULL);
+ pprev_path = realpath("../..", NULL);
+ empty = strdup("");
+ if (!cur_path || !prev_path || !pprev_path || !empty) {
+ PRINT_ERR("strdup out of memory");
+ ret = -1;
+ goto end;
+ }
+
+ /* allocate memory for the expected results */
+ valid_tests_expected_results = (char **) zmalloc(sizeof(char *) * num_valid_tests);
+ if (!valid_tests_expected_results) {
+ PRINT_ERR("out of memory");
+ ret = -1;
+ goto end;
+ }
+ for (i = 0; i < num_valid_tests; i++) {
+ valid_tests_expected_results[i] = (char *) malloc(PATH_MAX);
+ if (valid_tests_expected_results[i] == NULL) {
+ PRINT_ERR("malloc expected results");
+ ret = -1;
+ goto end;
+ }
+
+ if (strcmp(valid_tests_inputs[i].relative_part, ".") == 0) {
+ relative = cur_path;
+ } else if (strcmp(valid_tests_inputs[i].relative_part, "..") == 0) {
+ relative = prev_path;
+ } else if (strcmp(valid_tests_inputs[i].relative_part, "../..") == 0) {
+ relative = pprev_path;
+ } else {
+ relative = empty;
+ }
+
+ snprintf(valid_tests_expected_results[i], PATH_MAX,
+ "%s%s", relative, valid_tests_inputs[i].absolute_part);
+ }
+
+end:
+ free(cur_path);
+ free(prev_path);
+ free(pprev_path);
+ free(empty);
+
+ return ret;
+}
+
+static int free_valid_results(void)
+{
+ int i;
+
+ for (i = 0; i < num_valid_tests; i++) {
+ free(valid_tests_expected_results[i]);
+ }
+
+ free(valid_tests_expected_results);
+
+ return 0;
+}
+
+static int prepare_symlink_tree(void)
+{
+ int i;
+ char tmppath[PATH_MAX] = {};
+
+ /* Create the temporary directory */
+ if (mkdtemp(tree_origin) == NULL) {
+ PRINT_ERR("failed to mkdtemp");
+ goto error;
+ }
+
+ /* Create the directories of the test tree */
+ for (i = 0; i < num_tree_dirs; i++) {
+ snprintf(tmppath, sizeof(tmppath), "%s/%s", tree_origin,
+ tree_dirs[i]);
+
+ if (mkdir(tmppath, 0755) != 0) {
+ PRINT_ERR("mkdir failed with path \"%s\"", tmppath);
+ goto error;
+ }
+ }
+
+ /* Create the symlinks of the test tree */
+ for (i = 0; i < num_tree_symlinks; i++) {
+ snprintf(tmppath, sizeof(tmppath), "%s/%s",
+ tree_origin, tree_symlinks[i].orig);
+
+ if (symlink(tree_symlinks[i].dest, tmppath) != 0) {
+ PRINT_ERR("failed to symlink \"%s\" to \"%s\"", tmppath,
+ tree_symlinks[i].dest);
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ return 1;
+}
+
+static int free_symlink_tree(void)
+{
+ int i;
+ char tmppath[PATH_MAX];
+
+ /* Remove the symlinks from the test tree */
+ for (i = num_tree_symlinks - 1; i > -1; i--) {
+ snprintf(tmppath, PATH_MAX, "%s/%s",
+ tree_origin, tree_symlinks[i].orig);
+
+ if (unlink(tmppath) != 0) {
+ PRINT_ERR("failed to unlink \"%s\"", tmppath);
+ goto error;
+ }
+ }
+
+ /* Remove the directories from the test tree */
+ for (i = num_tree_dirs - 1; i > -1; i--) {
+ snprintf(tmppath, PATH_MAX, "%s/%s", tree_origin, tree_dirs[i]);
+
+ if (rmdir(tmppath) != 0) {
+ PRINT_ERR("failed to rmdir \"%s\"", tmppath);
+ goto error;
+ }
+ }
+
+ /* Remove the temporary directory */
+ if (rmdir(tree_origin) != 0) {
+ PRINT_ERR("failed to rmdir \"%s\"", tree_origin);
+ goto error;
+ }
+
+ return 0;
+
+error:
+ return 1;
+}
+
+static void test_utils_expand_path(void)
+{
+ char *result;
+ char name[100], tmppath[PATH_MAX], real_tree_origin[PATH_MAX];
+ int i, treelen;
+
+ /* Test valid cases */
+ for (i = 0; i < num_valid_tests; i++) {
+ sprintf(name, "valid test case: %s", valid_tests_inputs[i].input);
+
+ result = utils_expand_path(valid_tests_inputs[i].input);
+ ok(result != NULL &&
+ strcmp(result, valid_tests_expected_results[i]) == 0, name);
+
+ free(result);
+ }
+
+ /*
+ * Get the realpath for the tree_origin since it can itself be a
+ * symlink.
+ */
+ result = realpath(tree_origin, real_tree_origin);
+ if (!result) {
+ fail("realpath failed.");
+ return;
+ }
+
+ /* Test symlink tree cases */
+ treelen = strlen(real_tree_origin) + 1;
+ for (i = 0; i < num_symlink_tests; i++) {
+ int ret;
+
+ sprintf(name, "symlink tree test case: [tmppath/]%s",
+ symlink_tests_inputs[i].input);
+
+ ret = snprintf(tmppath, PATH_MAX, "%s/%s",
+ real_tree_origin,
+ symlink_tests_inputs[i].input);
+ if (ret == -1 || ret >= PATH_MAX) {
+ PRINT_ERR("truncation occurred while concatenating paths \"%s\" and \"%s\"",
+ real_tree_origin,
+ symlink_tests_inputs[i].input);
+ fail(name);
+ continue;
+ }
+ result = utils_expand_path(tmppath);
+ ok(result != NULL && strcmp(result + treelen,
+ symlink_tests_inputs[i].expected_result) == 0, name);
+
+ free(result);
+ }
+
+ /* Test invalid cases */
+ for (i = 0; i < num_invalid_tests; i++) {
+ const char *test_input = invalid_tests_inputs[i];
+
+ sprintf(name, "invalid test case: %s", test_input ?
+ test_input : "NULL");
+
+ result = utils_expand_path(test_input);
+ if (result != NULL) {
+ free(result);
+ }
+ ok(result == NULL, name);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ if (prepare_symlink_tree() != 0) {
+ goto error_mkdir;
+ }
+
+ if (prepare_valid_results() != 0) {
+ goto error_malloc;
+ }
+
+ plan_tests(num_valid_tests + num_invalid_tests + num_symlink_tests);
+
+ diag("utils_expand_path tests");
+
+ test_utils_expand_path();
+
+ free_valid_results();
+ free_symlink_tree();
+
+ return exit_status();
+
+error_malloc:
+ free_valid_results();
+
+error_mkdir:
+ free_symlink_tree();
+
+ return 1;
+}
projects / lttng-tools.git / blobdiff