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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2020-05-28 23:28:07 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2020-05-28 23:30:57 +0000
commit6544999083437dabdadcec18185a1b2169b9637a (patch)
treeba213cf1208c45422b17a3d947695845ef191f70
parentcc0118983a3b3ca36fa7ddd9a5dde2cb28160f1d (diff)
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hurd: Fix fexecve
* sysdeps/mach/hurd/fexecve.c (fexecve): Re-lookup fd with O_EXEC before
calling _hurd_exec_paths.
-rw-r--r--sysdeps/mach/hurd/fexecve.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/sysdeps/mach/hurd/fexecve.c b/sysdeps/mach/hurd/fexecve.c
index 2b24e46fbf..c6a00ebf1e 100644
--- a/sysdeps/mach/hurd/fexecve.c
+++ b/sysdeps/mach/hurd/fexecve.c
@@ -25,10 +25,23 @@
 int
 fexecve (int fd, char *const argv[], char *const envp[])
 {
-  error_t err = HURD_DPORT_USE (fd, _hurd_exec_paths (__mach_task_self (),
-						      port, NULL, NULL,
-						      argv, envp));
+  file_t file;
+  error_t err;
+  enum retry_type doretry;
+  char retryname[1024];
+
+  err = HURD_DPORT_USE (fd,
+      __dir_lookup (port, "", O_EXEC, 0, &doretry, retryname, &file));
+
+  if (! err && (doretry != FS_RETRY_NORMAL || retryname[0] != '\0'))
+    err = EGRATUITOUS;
+  if (err)
+    return __hurd_fail(err);
+
+  err = _hurd_exec_paths (__mach_task_self (), file, NULL, NULL, argv, envp);
   if (! err)
     err = EGRATUITOUS;
+
+  __mach_port_deallocate (__mach_task_self (), file);
   return __hurd_fail (err);
 }