+2009-12-21 Corinna Vinschen <corinna@vinschen.de>
+
+ * exec.cc (execvp): Call find_exec with FE_NNF flag to enforce
+ a NULL return when executable isn't found in $PATH. Convert NULL
+ to "".
+ (execvpe): Ditto.
+ * spawn.cc (spawn_guts): Return with EFAULT if prog_arg is NULL.
+ Return with ENOENT if prog_arg is empty string. Add a comment.
+
2009-12-21 Thomas Wolff <towo@towo.net>
* fhandler_console.cc (get_nonascii_key): Generate ESC prefix
execvp (const char *path, char * const *argv)
{
path_conv buf;
- return execv (find_exec (path, buf), argv);
+ return execv (find_exec (path, buf, "PATH=", FE_NNF) ?: "", argv);
}
extern "C" int
execvpe (const char *path, char * const *argv, char *const *envp)
{
path_conv buf;
- return execve (find_exec (path, buf), argv, envp);
+ return execve (find_exec (path, buf, "PATH=", FE_NNF) ?: "", argv, envp);
}
extern "C" int
if (prog_arg == NULL)
{
syscall_printf ("prog_arg is NULL");
- set_errno (EINVAL);
+ set_errno (EFAULT); /* As on Linux. */
+ return -1;
+ }
+ if (!prog_arg[0])
+ {
+ syscall_printf ("prog_arg is empty");
+ set_errno (ENOENT); /* Per POSIX */
return -1;
}
syscall_printf ("spawn_guts (%d, %.9500s)", mode, prog_arg);
+ /* FIXME: This is no error condition on Linux. */
if (argv == NULL)
{
syscall_printf ("argv is NULL");