2 * lxc: linux Container library
4 * (C) Copyright IBM Corp. 2007, 2008
7 * Daniel Lezcano <daniel.lezcano at free.fr>
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 #include <sys/types.h>
38 #include "raw_syscalls.h"
41 lxc_log_define(execute
, start
);
43 static int execute_start(struct lxc_handler
*handler
, void* data
)
48 struct execute_args
*my_args
= data
;
50 while (my_args
->argv
[argc
++]);
52 /* lxc-init -n name -- [argc] NULL -> 5 */
57 if (!handler
->conf
->rootfs
.path
)
60 argv
= malloc((argc
+ argc_add
) * sizeof(*argv
));
62 SYSERROR("Allocating init args failed");
66 if (my_args
->init_path
)
67 argv
[i
++] = my_args
->init_path
;
69 argv
[i
++] = "lxc-init";
72 argv
[i
++] = (char *)handler
->name
;
75 argv
[i
++] = "--quiet";
77 if (!handler
->conf
->rootfs
.path
) {
79 argv
[i
++] = (char *)handler
->lxcpath
;
83 for (j
= 0; j
< argc
; j
++)
84 argv
[i
++] = my_args
->argv
[j
];
87 NOTICE("Exec'ing \"%s\"", my_args
->argv
[0]);
89 if (my_args
->init_fd
>= 0)
90 lxc_raw_execveat(my_args
->init_fd
, "", argv
, environ
, AT_EMPTY_PATH
);
92 execvp(argv
[0], argv
);
93 SYSERROR("Failed to exec %s", argv
[0]);
100 static int execute_post_start(struct lxc_handler
*handler
, void* data
)
102 struct execute_args
*my_args
= data
;
103 NOTICE("'%s' started with pid '%d'", my_args
->argv
[0], handler
->pid
);
107 static struct lxc_operations execute_start_ops
= {
108 .start
= execute_start
,
109 .post_start
= execute_post_start
112 int lxc_execute(const char *name
, char *const argv
[], int quiet
,
113 struct lxc_handler
*handler
, const char *lxcpath
,
114 bool daemonize
, int *error_num
)
116 struct execute_args args
= {.argv
= argv
, .quiet
= quiet
};
118 TRACE("Doing lxc_execute");
119 handler
->conf
->is_execute
= true;
120 return __lxc_start(name
, handler
, &execute_start_ops
, &args
, lxcpath
,
121 daemonize
, error_num
);