os/tpf/os.c

   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
  28 static FILE *sock_fp;
  29
  30 #ifndef __PIPE_
  31 int 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
  41 pid_t fork(void)
  42 {
  43     errno = ENOSYS;
  44     return(-1);
  45 }
  46
  47 int execl(const char *path, const char *arg0, ...)
  48 {
  49     errno = ENOSYS;
  50     return(-1);
  51 }
  52
  53 int execle(const char *path, const char *arg0, ...)
  54 {
  55     errno = ENOSYS;
  56     return(-1);
  57 }
  58
  59 int execve(const char *path, char *const argv[], char *const envp[])
  60 {
  61     errno = ENOSYS;
  62     return(-1);
  63 }
  64
  65 int execvp(const char *file, char *const argv[])
  66 {
  67     errno = ENOSYS;
  68     return(-1);
  69 }
  70
  71
  72 pid_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
 109 int 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
 124 AP_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 }