1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
--- init/init.c 4 Feb 2006 18:39:33 -0000 1.131
+++ init/init.c 19 Nov 2007 21:14:40 -0000
@@ -1082,10 +1082,12 @@
static void
launch_something (const char *why)
{
+ file_t something;
static unsigned int try;
static const char *const tries[] =
{
"/libexec/runsystem",
+ "/libexec/runsystem.gnu",
_PATH_BSHELL,
"/bin/shd", /* XXX */
};
@@ -1093,12 +1095,26 @@
if (why)
error (0, 0, "%s %s", tries[try - 1], why);
- if (try == 0 && start_child (tries[try++], &global_argv[1]) == 0)
- return;
+ something = file_name_lookup (tries[try], O_EXEC, 0);
+ if (something != MACH_PORT_NULL)
+ {
+ mach_port_deallocate (mach_task_self (), something);
+ if (try == 0 && start_child (tries[try++], &global_argv[1]) == 0)
+ return;
+ }
+ else
+ try++;
while (try < sizeof tries / sizeof tries[0])
- if (start_child (tries[try++], NULL) == 0)
- return;
+ {
+ something = file_name_lookup (tries[try], O_EXEC, 0);
+ if (something != MACH_PORT_NULL)
+ {
+ mach_port_deallocate (mach_task_self (), something);
+ if (start_child (tries[try++], NULL) == 0)
+ return;
+ }
+ }
crash_system ();
}
--- daemons/console-run.c 26 Mar 2002 18:59:31 -0000 1.5
+++ daemons/console-run.c 19 Nov 2007 20:16:15 -0000
@@ -49,6 +49,7 @@
main (int argc, char **argv)
{
mach_port_t consdev = get_console ();
+ mach_port_t runsystem;
char *consname;
if (consdev == MACH_PORT_NULL)
@@ -62,6 +63,12 @@
if (argc < 2)
error (1, 0, "Usage: %s PROGRAM [ARG...]", program_invocation_short_name);
+ /* Check whether runsystem exists before opening a console for it. */
+ runsystem = file_name_lookup (argv[1], O_RDONLY, 0);
+ if (runsystem == MACH_PORT_NULL)
+ error (127, errno, "cannot open file `%s' for execution", argv[1]);
+ mach_port_deallocate (mach_task_self (), runsystem);
+
if (open_console (&consname))
setenv ("FALLBACK_CONSOLE", consname, 1);
|
