| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "apr_arch_threadproc.h" |
| #include "apr_strings.h" |
| |
| /* Heavy on no'ops, here's what we want to pass if there is APR_NO_FILE |
| * requested for a specific child handle; |
| */ |
| static apr_file_t no_file = { NULL, -1, }; |
| |
| struct send_pipe { |
| int in; |
| int out; |
| int err; |
| }; |
| |
| APR_DECLARE(apr_status_t) apr_procattr_create(apr_procattr_t **new, apr_pool_t *pool) |
| { |
| (*new) = (apr_procattr_t *)apr_palloc(pool, |
| sizeof(apr_procattr_t)); |
| |
| if ((*new) == NULL) { |
| return APR_ENOMEM; |
| } |
| (*new)->pool = pool; |
| (*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; |
| (*new)->detached = 0; |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_io_set(apr_procattr_t *attr, |
| apr_int32_t in, |
| apr_int32_t out, |
| apr_int32_t err) |
| { |
| apr_status_t rv; |
| |
| if ((in != APR_NO_PIPE) && (in != APR_NO_FILE)) { |
| /* APR_CHILD_BLOCK maps to APR_WRITE_BLOCK, while |
| * APR_PARENT_BLOCK maps to APR_READ_BLOCK, so transpose |
| * the CHILD/PARENT blocking flags for the stdin pipe. |
| * stdout/stderr map to the correct mode by default. |
| */ |
| if (in == APR_CHILD_BLOCK) |
| in = APR_READ_BLOCK; |
| else if (in == APR_PARENT_BLOCK) |
| in = APR_WRITE_BLOCK; |
| |
| if ((rv = apr_file_pipe_create_ex(&attr->child_in, &attr->parent_in, |
| in, attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_in); |
| if (rv != APR_SUCCESS) |
| return rv; |
| } |
| else if (in == APR_NO_FILE) |
| attr->child_in = &no_file; |
| |
| if ((out != APR_NO_PIPE) && (out != APR_NO_FILE)) { |
| if ((rv = apr_file_pipe_create_ex(&attr->parent_out, &attr->child_out, |
| out, attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_out); |
| if (rv != APR_SUCCESS) |
| return rv; |
| } |
| else if (out == APR_NO_FILE) |
| attr->child_out = &no_file; |
| |
| if ((err != APR_NO_PIPE) && (err != APR_NO_FILE)) { |
| if ((rv = apr_file_pipe_create_ex(&attr->parent_err, &attr->child_err, |
| err, attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_err); |
| if (rv != APR_SUCCESS) |
| return rv; |
| } |
| else if (err == APR_NO_FILE) |
| attr->child_err = &no_file; |
| |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_dir_set(apr_procattr_t *attr, |
| const char *dir) |
| { |
| char * cwd; |
| if (dir[0] != '/') { |
| cwd = (char*)malloc(sizeof(char) * PATH_MAX); |
| getcwd(cwd, PATH_MAX); |
| attr->currdir = (char *)apr_pstrcat(attr->pool, cwd, "/", dir, NULL); |
| free(cwd); |
| } else { |
| attr->currdir = (char *)apr_pstrdup(attr->pool, dir); |
| } |
| if (attr->currdir) { |
| return APR_SUCCESS; |
| } |
| return APR_ENOMEM; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_cmdtype_set(apr_procattr_t *attr, |
| apr_cmdtype_e cmd) |
| { |
| attr->cmdtype = cmd; |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_detach_set(apr_procattr_t *attr, apr_int32_t detach) |
| { |
| attr->detached = detach; |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_proc_fork(apr_proc_t *proc, apr_pool_t *pool) |
| { |
| int pid; |
| |
| if ((pid = fork()) < 0) { |
| return errno; |
| } |
| else if (pid == 0) { |
| /* This is really ugly... |
| * The semantics of BeOS's fork() are that areas (used for shared |
| * memory) get COW'd :-( The only way we can make shared memory |
| * work across fork() is therefore to find any areas that have |
| * been created and then clone them into our address space. |
| * Thankfully only COW'd areas have the lock variable set at |
| * anything but 0, so we can use that to find the areas we need to |
| * copy. Of course what makes it even worse is that the loop through |
| * the area's will go into an infinite loop, eating memory and then |
| * eventually segfault unless we know when we reach then end of the |
| * "original" areas and stop. Why? Well, we delete the area and then |
| * add another to the end of the list... |
| */ |
| area_info ai; |
| int32 cookie = 0; |
| area_id highest = 0; |
| |
| while (get_next_area_info(0, &cookie, &ai) == B_OK) |
| if (ai.area > highest) |
| highest = ai.area; |
| cookie = 0; |
| while (get_next_area_info(0, &cookie, &ai) == B_OK) { |
| if (ai.area > highest) |
| break; |
| if (ai.lock > 0) { |
| area_id original = find_area(ai.name); |
| delete_area(ai.area); |
| clone_area(ai.name, &ai.address, B_CLONE_ADDRESS, |
| ai.protection, original); |
| } |
| } |
| |
| proc->pid = pid; |
| proc->in = NULL; |
| proc->out = NULL; |
| proc->err = NULL; |
| return APR_INCHILD; |
| } |
| proc->pid = pid; |
| proc->in = NULL; |
| proc->out = NULL; |
| proc->err = NULL; |
| return APR_INPARENT; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_child_errfn_set(apr_procattr_t *attr, |
| apr_child_errfn_t *errfn) |
| { |
| /* won't ever be called on this platform, so don't save the function pointer */ |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_error_check_set(apr_procattr_t *attr, |
| apr_int32_t chk) |
| { |
| /* won't ever be used on this platform, so don't save the flag */ |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_addrspace_set(apr_procattr_t *attr, |
| apr_int32_t addrspace) |
| { |
| /* won't ever be used on this platform, so don't save the flag */ |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_proc_create(apr_proc_t *new, const char *progname, |
| const char * const *args, |
| const char * const *env, |
| apr_procattr_t *attr, |
| apr_pool_t *pool) |
| { |
| int i=0,nargs=0; |
| char **newargs = NULL; |
| thread_id newproc, sender; |
| struct send_pipe *sp; |
| char * dir = NULL; |
| |
| sp = (struct send_pipe *)apr_palloc(pool, sizeof(struct send_pipe)); |
| |
| new->in = attr->parent_in; |
| new->err = attr->parent_err; |
| new->out = attr->parent_out; |
| sp->in = attr->child_in ? attr->child_in->filedes : FILENO_STDIN; |
| sp->out = attr->child_out ? attr->child_out->filedes : FILENO_STDOUT; |
| sp->err = attr->child_err ? attr->child_err->filedes : FILENO_STDERR; |
| |
| i = 0; |
| while (args && args[i]) { |
| i++; |
| } |
| |
| newargs = (char**)malloc(sizeof(char *) * (i + 4)); |
| newargs[0] = strdup("/boot/home/config/bin/apr_proc_stub"); |
| if (attr->currdir == NULL) { |
| /* we require the directory , so use a temp. variable */ |
| dir = malloc(sizeof(char) * PATH_MAX); |
| getcwd(dir, PATH_MAX); |
| newargs[1] = strdup(dir); |
| free(dir); |
| } else { |
| newargs[1] = strdup(attr->currdir); |
| } |
| newargs[2] = strdup(progname); |
| i=0;nargs = 3; |
| |
| while (args && args[i]) { |
| newargs[nargs] = strdup(args[i]); |
| i++;nargs++; |
| } |
| newargs[nargs] = NULL; |
| |
| /* ### we should be looking at attr->cmdtype in here... */ |
| |
| newproc = load_image(nargs, (const char**)newargs, (const char**)env); |
| |
| /* load_image copies the data so now we can free it... */ |
| while (--nargs >= 0) |
| free (newargs[nargs]); |
| free(newargs); |
| |
| if (newproc < B_NO_ERROR) { |
| return errno; |
| } |
| |
| resume_thread(newproc); |
| |
| if (attr->child_in && (attr->child_in->filedes != -1)) { |
| apr_file_close(attr->child_in); |
| } |
| if (attr->child_out && (attr->child_in->filedes != -1)) { |
| apr_file_close(attr->child_out); |
| } |
| if (attr->child_err && (attr->child_in->filedes != -1)) { |
| apr_file_close(attr->child_err); |
| } |
| |
| send_data(newproc, 0, (void*)sp, sizeof(struct send_pipe)); |
| new->pid = newproc; |
| |
| /* before we go charging on we need the new process to get to a |
| * certain point. When it gets there it'll let us know and we |
| * can carry on. */ |
| receive_data(&sender, (void*)NULL,0); |
| |
| return APR_SUCCESS; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_proc_wait_all_procs(apr_proc_t *proc, |
| int *exitcode, |
| apr_exit_why_e *exitwhy, |
| apr_wait_how_e waithow, |
| apr_pool_t *p) |
| { |
| proc->pid = -1; |
| return apr_proc_wait(proc, exitcode, exitwhy, waithow); |
| } |
| |
| APR_DECLARE(apr_status_t) apr_proc_wait(apr_proc_t *proc, |
| int *exitcode, |
| apr_exit_why_e *exitwhy, |
| apr_wait_how_e waithow) |
| { |
| pid_t pstatus; |
| int waitpid_options = WUNTRACED; |
| int exit_int; |
| int ignore; |
| apr_exit_why_e ignorewhy; |
| |
| if (exitcode == NULL) { |
| exitcode = &ignore; |
| } |
| if (exitwhy == NULL) { |
| exitwhy = &ignorewhy; |
| } |
| |
| if (waithow != APR_WAIT) { |
| waitpid_options |= WNOHANG; |
| } |
| |
| if ((pstatus = waitpid(proc->pid, &exit_int, waitpid_options)) > 0) { |
| proc->pid = pstatus; |
| if (WIFEXITED(exit_int)) { |
| *exitwhy = APR_PROC_EXIT; |
| *exitcode = WEXITSTATUS(exit_int); |
| } |
| else if (WIFSIGNALED(exit_int)) { |
| *exitwhy = APR_PROC_SIGNAL; |
| *exitcode = WTERMSIG(exit_int); |
| } |
| else { |
| |
| /* unexpected condition */ |
| return APR_EGENERAL; |
| } |
| return APR_CHILD_DONE; |
| } |
| else if (pstatus == 0) { |
| return APR_CHILD_NOTDONE; |
| } |
| |
| return errno; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_child_in_set(apr_procattr_t *attr, apr_file_t *child_in, |
| apr_file_t *parent_in) |
| { |
| apr_status_t rv; |
| |
| if (attr->child_in == NULL && attr->parent_in == NULL |
| && child_in == NULL && parent_in == NULL) |
| if ((rv = apr_file_pipe_create(&attr->child_in, &attr->parent_in, |
| attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_in); |
| |
| if (child_in != NULL && rv == APR_SUCCESS) { |
| if (attr->child_in && (attr->child_in->filedes != -1)) |
| rv = apr_file_dup2(attr->child_in, child_in, attr->pool); |
| else { |
| attr->child_in = NULL; |
| if ((rv = apr_file_dup(&attr->child_in, child_in, attr->pool)) |
| == APR_SUCCESS) |
| rv = apr_file_inherit_set(attr->child_in); |
| } |
| } |
| |
| if (parent_in != NULL && rv == APR_SUCCESS) |
| rv = apr_file_dup(&attr->parent_in, parent_in, attr->pool); |
| |
| return rv; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_child_out_set(apr_procattr_t *attr, apr_file_t *child_out, |
| apr_file_t *parent_out) |
| { |
| apr_status_t rv; |
| |
| if (attr->child_out == NULL && attr->parent_out == NULL |
| && child_out == NULL && parent_out == NULL) |
| if ((rv = apr_file_pipe_create(&attr->parent_out, &attr->child_out, |
| attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_out); |
| |
| if (child_out != NULL && rv == APR_SUCCESS) { |
| if (attr->child_out && (attr->child_out->filedes != -1)) |
| rv = apr_file_dup2(attr->child_out, child_out, attr->pool); |
| else { |
| attr->child_out = NULL; |
| if ((rv = apr_file_dup(&attr->child_out, child_out, attr->pool)) |
| == APR_SUCCESS) |
| rv = apr_file_inherit_set(attr->child_out); |
| } |
| } |
| |
| if (parent_out != NULL && rv == APR_SUCCESS) |
| rv = apr_file_dup(&attr->parent_out, parent_out, attr->pool); |
| |
| return rv; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_child_err_set(apr_procattr_t *attr, apr_file_t *child_err, |
| apr_file_t *parent_err) |
| { |
| apr_status_t rv; |
| |
| if (attr->child_err == NULL && attr->parent_err == NULL |
| && child_err == NULL && parent_err == NULL) |
| if ((rv = apr_file_pipe_create(&attr->parent_err, &attr->child_err, |
| attr->pool)) == APR_SUCCESS) |
| rv = apr_file_inherit_unset(attr->parent_err); |
| |
| if (child_err != NULL && rv == APR_SUCCESS) { |
| if (attr->child_err && (attr->child_err->filedes != -1)) |
| rv = apr_file_dup2(attr->child_err, child_err, attr->pool); |
| else { |
| attr->child_err = NULL; |
| if ((rv = apr_file_dup(&attr->child_err, child_err, attr->pool)) |
| == APR_SUCCESS) |
| rv = apr_file_inherit_set(attr->child_err); |
| } |
| } |
| |
| if (parent_err != NULL && rv == APR_SUCCESS) |
| rv = apr_file_dup(&attr->parent_err, parent_err, attr->pool); |
| |
| return rv; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_limit_set(apr_procattr_t *attr, apr_int32_t what, |
| void *limit) |
| { |
| return APR_ENOTIMPL; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_user_set(apr_procattr_t *attr, |
| const char *username, |
| const char *password) |
| { |
| return APR_ENOTIMPL; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_group_set(apr_procattr_t *attr, |
| const char *groupname) |
| { |
| return APR_ENOTIMPL; |
| } |
| |
| APR_DECLARE(apr_status_t) apr_procattr_perms_set_register(apr_procattr_t *attr, |
| apr_perms_setfn_t *perms_set_fn, |
| void *data, |
| apr_fileperms_t perms) |
| { |
| return APR_ENOTIMPL; |
| } |
