| /* ==================================================================== |
| * Copyright (c) 1999 The Apache Group. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * 4. The names "Apache Server" and "Apache Group" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the Apache Group |
| * for use in the Apache HTTP server project (http://www.apache.org/)." |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Group. |
| * For more information on the Apache Group and the Apache HTTP server |
| * project, please see <http://www.apache.org/>. |
| * |
| */ |
| |
| #include "threadproc.h" |
| #include "fileio.h" |
| |
| #include "apr_thread_proc.h" |
| #include "apr_file_io.h" |
| #include "apr_general.h" |
| #include "apr_lib.h" |
| #include <signal.h> |
| #include <string.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| #define INCL_DOS |
| #include <os2.h> |
| |
| ap_status_t ap_createprocattr_init(ap_context_t *cont, struct procattr_t **new) |
| { |
| (*new) = (struct procattr_t *)ap_palloc(cont, |
| sizeof(struct procattr_t)); |
| |
| if ((*new) == NULL) { |
| return APR_ENOMEM; |
| } |
| (*new)->cntxt = cont; |
| (*new)->parent_in = NULL; |
| (*new)->child_in = NULL; |
| (*new)->parent_out = NULL; |
| (*new)->child_out = NULL; |
| (*new)->parent_err = NULL; |
| (*new)->child_err = NULL; |
| (*new)->currdir = NULL; |
| (*new)->cmdtype = APR_PROGRAM; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_setprocattr_io(struct procattr_t *attr, ap_int32_t in, |
| ap_int32_t out, ap_int32_t err) |
| { |
| ap_status_t stat; |
| if (in) { |
| if ((stat = ap_create_pipe(attr->cntxt, &attr->child_in, |
| &attr->parent_in)) != APR_SUCCESS) { |
| return stat; |
| } |
| } |
| if (out) { |
| if ((stat = ap_create_pipe(attr->cntxt, &attr->parent_out, |
| &attr->child_out)) != APR_SUCCESS) { |
| return stat; |
| } |
| } |
| if (err) { |
| if ((stat = ap_create_pipe(attr->cntxt, &attr->parent_err, |
| &attr->child_err)) != APR_SUCCESS) { |
| return stat; |
| } |
| } |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_setprocattr_dir(struct procattr_t *attr, |
| char *dir) |
| { |
| attr->currdir = ap_pstrdup(attr->cntxt, dir); |
| if (attr->currdir) { |
| return APR_SUCCESS; |
| } |
| return APR_ENOMEM; |
| } |
| |
| ap_status_t ap_setprocattr_cmdtype(struct procattr_t *attr, |
| ap_cmdtype_e cmd) |
| { |
| attr->cmdtype = cmd; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_fork(ap_context_t *cont, struct proc_t **proc) |
| { |
| int pid; |
| |
| (*proc) = ap_palloc(cont, sizeof(struct proc_t)); |
| |
| if ((pid = fork()) < 0) { |
| return errno; |
| } else if (pid == 0) { |
| (*proc)->pid = pid; |
| (*proc)->attr = NULL; |
| (*proc)->running = TRUE; |
| return APR_INCHILD; |
| } |
| |
| (*proc)->pid = pid; |
| (*proc)->attr = NULL; |
| (*proc)->running = TRUE; |
| return APR_INPARENT; |
| } |
| |
| ap_status_t ap_create_process(ap_context_t *cont, char *progname, |
| char *const args[], char **env, |
| struct procattr_t *attr, struct proc_t **new) |
| { |
| int i; |
| ap_status_t stat; |
| char **newargs; |
| char savedir[300]; |
| HFILE save_in, save_out, save_err, dup; |
| int criticalsection = FALSE; |
| |
| (*new) = (struct proc_t *)ap_palloc(cont, sizeof(struct proc_t)); |
| |
| if ((*new) == NULL) { |
| return APR_ENOMEM; |
| } |
| |
| (*new)->cntxt = cont; |
| (*new)->running = FALSE; |
| |
| /* Prevent other threads from running while these process-wide resources are modified */ |
| if (attr->child_in || attr->child_out || attr->child_err || attr->currdir) { |
| criticalsection = TRUE; |
| DosEnterCritSec(); |
| } |
| |
| if (attr->child_in) { |
| save_in = -1; |
| DosDupHandle(STDIN_FILENO, &save_in); |
| dup = STDIN_FILENO; |
| DosDupHandle(attr->child_in->filedes, &dup); |
| DosSetFHState(attr->parent_in->filedes, OPEN_FLAGS_NOINHERIT); |
| } |
| |
| if (attr->child_out) { |
| save_out = -1; |
| DosDupHandle(STDOUT_FILENO, &save_out); |
| dup = STDOUT_FILENO; |
| DosDupHandle(attr->child_out->filedes, &dup); |
| DosSetFHState(attr->parent_out->filedes, OPEN_FLAGS_NOINHERIT); |
| } |
| |
| if (attr->child_err) { |
| save_err = -1; |
| DosDupHandle(STDERR_FILENO, &save_err); |
| dup = STDERR_FILENO; |
| DosDupHandle(attr->child_err->filedes, &dup); |
| DosSetFHState(attr->parent_err->filedes, OPEN_FLAGS_NOINHERIT); |
| } |
| |
| signal(SIGCHLD, SIG_DFL); /*not sure if this is needed or not */ |
| |
| if (attr->currdir != NULL) { |
| _getcwd2(savedir, sizeof(savedir)); |
| |
| if (_chdir2(attr->currdir) < 0) { |
| if (criticalsection) |
| DosExitCritSec(); |
| return errno; |
| } |
| } |
| |
| if (attr->cmdtype == APR_SHELLCMD) { |
| i = 0; |
| while (args[i]) { |
| i++; |
| } |
| newargs = (char **)ap_palloc(cont, sizeof (char *) * (i + 3)); |
| newargs[0] = ap_pstrdup(cont, SHELL_PATH); |
| newargs[1] = ap_pstrdup(cont, "/c"); |
| i = 0; |
| |
| while (args[i]) { |
| newargs[i + 2] = ap_pstrdup(cont, args[i]); |
| i++; |
| } |
| |
| newargs[i + 3] = NULL; |
| (*new)->pid = spawnve(P_NOWAIT, SHELL_PATH, newargs, env); |
| } else { |
| (*new)->pid = spawnve(P_NOWAIT, progname, args, env); |
| } |
| |
| stat = (*new)->pid < 0 ? errno : APR_SUCCESS; |
| |
| if (attr->currdir != NULL) { |
| chdir(savedir); |
| } |
| |
| if (attr->child_in) { |
| ap_close(attr->child_in); |
| dup = STDIN_FILENO; |
| DosDupHandle(save_in, &dup); |
| DosClose(save_in); |
| } |
| |
| if (attr->child_out) { |
| ap_close(attr->child_out); |
| dup = STDOUT_FILENO; |
| DosDupHandle(save_out, &dup); |
| DosClose(save_out); |
| } |
| |
| if (attr->child_err) { |
| ap_close(attr->child_err); |
| dup = STDERR_FILENO; |
| DosDupHandle(save_err, &dup); |
| DosClose(save_err); |
| } |
| |
| if (criticalsection) |
| DosExitCritSec(); |
| |
| (*new)->attr = attr; |
| (*new)->running = stat == APR_SUCCESS; |
| return stat; |
| } |
| |
| |
| |
| ap_status_t ap_get_childin(struct proc_t *proc, ap_file_t **new) |
| { |
| (*new) = proc->attr->parent_in; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_get_childout(struct proc_t *proc, ap_file_t **new) |
| { |
| (*new) = proc->attr->parent_out; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_get_childerr(struct proc_t *proc, ap_file_t **new) |
| { |
| (*new) = proc->attr->parent_err; |
| return APR_SUCCESS; |
| } |
| |
| ap_status_t ap_wait_proc(struct proc_t *proc, |
| ap_wait_how_e wait) |
| { |
| pid_t stat; |
| |
| if (!proc) |
| return APR_ENOPROC; |
| |
| if (!proc->running) |
| return APR_CHILD_DONE; |
| |
| if (wait == APR_WAIT) { |
| if ((stat = waitpid(proc->pid, NULL, WUNTRACED)) > 0) { |
| proc->running = FALSE; |
| return APR_CHILD_DONE; |
| } else if (stat == 0) { |
| return APR_CHILD_NOTDONE; |
| } |
| return errno; |
| } |
| |
| if ((stat = waitpid(proc->pid, NULL, WUNTRACED | WNOHANG)) > 0) { |
| proc->running = FALSE; |
| return APR_CHILD_DONE; |
| } else if (stat == 0) { |
| return APR_CHILD_NOTDONE; |
| } |
| |
| return errno; |
| } |
| |
