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

2 files changed, 4 insertions, 4 deletions

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);