1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/*
18 * This file will include OS specific functions which are not inlineable.
19 * Any inlineable functions should be defined in os-inline.c instead.
20 */
21
22#include "httpd.h"
23#include "http_core.h"
24#include "os.h"
25#include "scoreboard.h"
26#include "http_log.h"
27
28static FILE *sock_fp;
29
30#ifndef __PIPE_
31int pipe(int fildes[2])
32{
33    errno = ENOSYS;
34    return(-1);
35}
36#endif
37
38/* fork and exec functions are not defined on
39   TPF due to the implementation of tpf_fork() */
40
41pid_t fork(void)
42{
43    errno = ENOSYS;
44    return(-1);
45}
46
47int execl(const char *path, const char *arg0, ...)
48{
49    errno = ENOSYS;
50    return(-1);
51}
52
53int execle(const char *path, const char *arg0, ...)
54{
55    errno = ENOSYS;
56    return(-1);
57}
58
59int execve(const char *path, char *const argv[], char *const envp[])
60{
61    errno = ENOSYS;
62    return(-1);
63}
64
65int execvp(const char *file, char *const argv[])
66{
67    errno = ENOSYS;
68    return(-1);
69}
70
71
72pid_t os_fork(server_rec *s, int slot)
73{
74    struct tpf_fork_input fork_input;
75    APACHE_TPF_INPUT input_parms;
76    int count;
77    listen_rec *lr;
78
79    fflush(stdin);
80    if (dup2(fileno(sock_fp), STDIN_FILENO) == -1)
81        ap_log_error(APLOG_MARK, APLOG_CRIT, errno, s,
82        "unable to replace stdin with sock device driver");
83    fflush(stdout);
84    if (dup2(fileno(sock_fp), STDOUT_FILENO) == -1)
85        ap_log_error(APLOG_MARK, APLOG_CRIT, errno, s,
86        "unable to replace stdout with sock device driver");
87    input_parms.generation = ap_my_generation;
88    input_parms.scoreboard_heap = ap_scoreboard_image;
89
90    lr = ap_listeners;
91    count = 0;
92    do {
93        input_parms.listeners[count] = lr->fd;
94        lr = lr->next;
95        count++;
96    } while(lr != ap_listeners);
97
98    input_parms.slot = slot;
99    input_parms.restart_time = ap_restart_time;
100    fork_input.ebw_data = &input_parms;
101    fork_input.program = ap_server_argv0;
102    fork_input.prog_type = TPF_FORK_NAME;
103    fork_input.istream = TPF_FORK_IS_BALANCE;
104    fork_input.ebw_data_length = sizeof(input_parms);
105    fork_input.parm_data = "-x";
106    return tpf_fork(&fork_input);
107}
108
109int os_check_server(char *server) {
110#ifndef USE_TPF_DAEMON
111    int rv;
112    int *current_acn;
113    if((rv = inetd_getServerStatus(server)) == INETD_SERVER_STATUS_INACTIVE)
114        return 1;
115    else {
116        current_acn = (int *)cinfc_fast(CINFC_CMMACNUM);
117        if(ecbp2()->ce2acn != *current_acn)
118            return 1;
119    }
120#endif
121    return 0;
122}
123
124AP_DECLARE(apr_status_t) ap_os_create_privileged_process(
125    const request_rec *r,
126    apr_proc_t *newproc, const char *progname,
127    const char * const *args,
128    const char * const *env,
129    apr_procattr_t *attr, apr_pool_t *p)
130{
131    return apr_proc_create(newproc, progname, args, env, attr, p);
132}
133