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install: allow paths like LookupPath.generator to be NULL

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Fixes #3047.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2016-04-16 23:08:23 -04:00
parent 3ae5990c6e
commit 24737c2917
3 changed files with 24 additions and 14 deletions
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4
src/basic/path-util.h
View File

@ -48,6 +48,10 @@ bool path_equal(const char *a, const char *b) _pure_;
bool path_equal_or_files_same(const char *a, const char *b);
char* path_join(const char *root, const char *path, const char *rest);
static inline bool path_equal_ptr(const char *a, const char *b) {
return !!a == !!b && (!a || path_equal(a, b));
}
/* Note: the search terminates on the first NULL item. */
#define PATH_IN_SET(p, ...) \
({ \

28
src/shared/install.c
View File

@ -119,9 +119,9 @@ static int path_is_generator(const LookupPaths *p, const char *path) {
if (!parent)
return -ENOMEM;
return path_equal(p->generator, parent) ||
path_equal(p->generator_early, parent) ||
path_equal(p->generator_late, parent);
return path_equal_ptr(parent, p->generator) ||
path_equal_ptr(parent, p->generator_early) ||
path_equal_ptr(parent, p->generator_late);
}
static int path_is_transient(const LookupPaths *p, const char *path) {
@ -134,7 +134,7 @@ static int path_is_transient(const LookupPaths *p, const char *path) {
if (!parent)
return -ENOMEM;
return path_equal(p->transient, parent);
return path_equal_ptr(parent, p->transient);
}
static int path_is_control(const LookupPaths *p, const char *path) {
@ -147,8 +147,8 @@ static int path_is_control(const LookupPaths *p, const char *path) {
if (!parent)
return -ENOMEM;
return path_equal(parent, p->persistent_control) ||
path_equal(parent, p->runtime_control);
return path_equal_ptr(parent, p->persistent_control) ||
path_equal_ptr(parent, p->runtime_control);
}
static int path_is_config(const LookupPaths *p, const char *path) {
@ -164,8 +164,8 @@ static int path_is_config(const LookupPaths *p, const char *path) {
if (!parent)
return -ENOMEM;
return path_equal(parent, p->persistent_config) ||
path_equal(parent, p->runtime_config);
return path_equal_ptr(parent, p->persistent_config) ||
path_equal_ptr(parent, p->runtime_config);
}
static int path_is_runtime(const LookupPaths *p, const char *path) {
@ -186,12 +186,12 @@ static int path_is_runtime(const LookupPaths *p, const char *path) {
if (!parent)
return -ENOMEM;
return path_equal(parent, p->runtime_config) ||
path_equal(parent, p->generator) ||
path_equal(parent, p->generator_early) ||
path_equal(parent, p->generator_late) ||
path_equal(parent, p->transient) ||
path_equal(parent, p->runtime_control);
return path_equal_ptr(parent, p->runtime_config) ||
path_equal_ptr(parent, p->generator) ||
path_equal_ptr(parent, p->generator_early) ||
path_equal_ptr(parent, p->generator_late) ||
path_equal_ptr(parent, p->transient) ||
path_equal_ptr(parent, p->runtime_control);
}
static int path_is_vendor(const LookupPaths *p, const char *path) {

6
src/test/test-path-util.c
View File

@ -96,6 +96,12 @@ static void test_path(void) {
assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
assert_se(!PATH_IN_SET("/", "/abc", "/def"));
assert_se(path_equal_ptr(NULL, NULL));
assert_se(path_equal_ptr("/a", "/a"));
assert_se(!path_equal_ptr("/a", "/b"));
assert_se(!path_equal_ptr("/a", NULL));
assert_se(!path_equal_ptr(NULL, "/a"));
}
static void test_find_binary(const char *self) {