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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-11-22 18:00:07 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-11-22 18:01:43 -0500
commitb63bd1090bf6ce79b6757c3f8f4172a367854577 (patch)
tree85a66b611c242d405fd5006003c78e2cf0d480b4
parent8ecec322fe6b34b64868d8cc3808b5613f09e8d3 (diff)
Do not check for existence of remote binaries
systemd-run would fail when run with -M or -H and an absolute path, if this path did not exists locally. Allow it to continue, since we don't have a nice way of checking if the binary exists remotely. The case where -M or -H is used and a local path is unchanged, and we still iterate over $PATH to find the binary. We need to convert to an absolute path, and we don't have a nice mechanism to check remotely, so we assume that the binary will be located in the same place locally and remotely. http://lists.freedesktop.org/archives/systemd-devel/2014-November/025418.html
-rw-r--r--src/run/run.c7
-rw-r--r--src/shared/path-util.c6
-rw-r--r--src/shared/path-util.h2
-rw-r--r--src/test/test-path-util.c16
4 files changed, 18 insertions, 13 deletions
diff --git a/src/run/run.c b/src/run/run.c
index e3b62939c7..dcefb5c376 100644
--- a/src/run/run.c
+++ b/src/run/run.c
@@ -573,9 +573,12 @@ int main(int argc, char* argv[]) {
if (r <= 0)
goto finish;
- r = find_binary(argv[optind], &command);
+ r = find_binary(argv[optind], arg_transport == BUS_TRANSPORT_LOCAL, &command);
if (r < 0) {
- log_error("Failed to find executable %s: %s", argv[optind], strerror(-r));
+ log_error("Failed to find executable %s%s: %s",
+ argv[optind],
+ arg_transport == BUS_TRANSPORT_LOCAL ? "" : " on local system",
+ strerror(-r));
goto finish;
}
argv[optind] = command;
diff --git a/src/shared/path-util.c b/src/shared/path-util.c
index 67566bc76b..be03695cf8 100644
--- a/src/shared/path-util.c
+++ b/src/shared/path-util.c
@@ -563,11 +563,11 @@ int path_is_os_tree(const char *path) {
return r >= 0;
}
-int find_binary(const char *name, char **filename) {
+int find_binary(const char *name, bool local, char **filename) {
assert(name);
if (is_path(name)) {
- if (access(name, X_OK) < 0)
+ if (local && access(name, X_OK) < 0)
return -errno;
if (filename) {
@@ -657,7 +657,7 @@ int fsck_exists(const char *fstype) {
checker = strappenda("fsck.", fstype);
- r = find_binary(checker, &p);
+ r = find_binary(checker, true, &p);
if (r < 0)
return r;
diff --git a/src/shared/path-util.h b/src/shared/path-util.h
index 8d171a57ec..bd0d32473f 100644
--- a/src/shared/path-util.h
+++ b/src/shared/path-util.h
@@ -55,7 +55,7 @@ int path_is_mount_point(const char *path, bool allow_symlink);
int path_is_read_only_fs(const char *path);
int path_is_os_tree(const char *path);
-int find_binary(const char *name, char **filename);
+int find_binary(const char *name, bool local, char **filename);
bool paths_check_timestamp(const char* const* paths, usec_t *paths_ts_usec, bool update);
diff --git a/src/test/test-path-util.c b/src/test/test-path-util.c
index 82090ce99f..4ebbfa9a76 100644
--- a/src/test/test-path-util.c
+++ b/src/test/test-path-util.c
@@ -85,29 +85,30 @@ static void test_path(void) {
}
}
-static void test_find_binary(const char *self) {
+static void test_find_binary(const char *self, bool local) {
char *p;
- assert_se(find_binary("/bin/sh", &p) == 0);
+ assert_se(find_binary("/bin/sh", local, &p) == 0);
puts(p);
assert_se(streq(p, "/bin/sh"));
free(p);
- assert_se(find_binary(self, &p) == 0);
+ assert_se(find_binary(self, local, &p) == 0);
puts(p);
assert_se(endswith(p, "/test-path-util"));
assert_se(path_is_absolute(p));
free(p);
- assert_se(find_binary("sh", &p) == 0);
+ assert_se(find_binary("sh", local, &p) == 0);
puts(p);
assert_se(endswith(p, "/sh"));
assert_se(path_is_absolute(p));
free(p);
- assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
+ assert_se(find_binary("xxxx-xxxx", local, &p) == -ENOENT);
- assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
+ assert_se(find_binary("/some/dir/xxxx-xxxx", local, &p) ==
+ (local ? -ENOENT : 0));
}
static void test_prefixes(void) {
@@ -263,7 +264,8 @@ static void test_path_startswith(void) {
int main(int argc, char **argv) {
test_path();
- test_find_binary(argv[0]);
+ test_find_binary(argv[0], true);
+ test_find_binary(argv[0], false);
test_prefixes();
test_path_join();
test_fsck_exists();