process-util: tweak get_process_cwd() when calling for own process

Let's bypass /proc if we can.
2019-11-25 15:01:53 +01:00
parent 1a92b3f2ec
commit aad3a64d63
1 changed files with 5 additions and 1 deletions
@@ -21,8 +21,8 @@

 #include "alloc-util.h"
 #include "architecture.h"
-#include "escape.h"
 #include "env-util.h"
+#include "escape.h"
 #include "fd-util.h"
 #include "fileio.h"
 #include "fs-util.h"
@@ -34,6 +34,7 @@
 #include "missing_sched.h"
 #include "missing_syscall.h"
 #include "namespace-util.h"
+#include "path-util.h"
 #include "process-util.h"
 #include "raw-clone.h"
 #include "rlimit-util.h"
@@ -500,6 +501,9 @@ int get_process_cwd(pid_t pid, char **cwd) {

        assert(pid >= 0);

+        if (pid == 0 || pid == getpid_cached())
+                return safe_getcwd(cwd);
+
        p = procfs_file_alloca(pid, "cwd");

        return get_process_link_contents(p, cwd);