/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 The Apache Software Foundation. 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. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" 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 name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``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 SOFTWARE FOUNDATION 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 Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*/
#define INCL_DOS
#define INCL_DOSERRORS
#include "threadproc.h"
#include "fileio.h"
#include "apr_private.h"
#include "apr_thread_proc.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_lib.h"
#include "apr_portable.h"
#include "apr_strings.h"
#include
#include
#include
#include
#include
#include
#include
apr_status_t apr_createprocattr_init(apr_procattr_t **new, apr_pool_t *cont)
{
(*new) = (apr_procattr_t *)apr_palloc(cont,
sizeof(apr_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;
(*new)->detached = FALSE;
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_io(apr_procattr_t *attr, apr_int32_t in,
apr_int32_t out, apr_int32_t err)
{
apr_status_t stat;
if (in) {
if ((stat = apr_create_pipe(&attr->child_in, &attr->parent_in,
attr->cntxt)) != APR_SUCCESS) {
return stat;
}
switch (in) {
case APR_FULL_BLOCK:
break;
case APR_PARENT_BLOCK:
apr_set_pipe_timeout(attr->child_in, 0);
break;
case APR_CHILD_BLOCK:
apr_set_pipe_timeout(attr->parent_in, 0);
break;
default:
apr_set_pipe_timeout(attr->child_in, 0);
apr_set_pipe_timeout(attr->parent_in, 0);
}
}
if (out) {
if ((stat = apr_create_pipe(&attr->parent_out, &attr->child_out,
attr->cntxt)) != APR_SUCCESS) {
return stat;
}
switch (out) {
case APR_FULL_BLOCK:
break;
case APR_PARENT_BLOCK:
apr_set_pipe_timeout(attr->child_out, 0);
break;
case APR_CHILD_BLOCK:
apr_set_pipe_timeout(attr->parent_out, 0);
break;
default:
apr_set_pipe_timeout(attr->child_out, 0);
apr_set_pipe_timeout(attr->parent_out, 0);
}
}
if (err) {
if ((stat = apr_create_pipe(&attr->parent_err, &attr->child_err,
attr->cntxt)) != APR_SUCCESS) {
return stat;
}
switch (err) {
case APR_FULL_BLOCK:
break;
case APR_PARENT_BLOCK:
apr_set_pipe_timeout(attr->child_err, 0);
break;
case APR_CHILD_BLOCK:
apr_set_pipe_timeout(attr->parent_err, 0);
break;
default:
apr_set_pipe_timeout(attr->child_err, 0);
apr_set_pipe_timeout(attr->parent_err, 0);
}
}
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_childin(apr_procattr_t *attr, apr_file_t *child_in,
apr_file_t *parent_in)
{
if (attr->child_in == NULL && attr->parent_in == NULL)
apr_create_pipe(&attr->child_in, &attr->parent_in, attr->cntxt);
if (child_in != NULL)
apr_dupfile(&attr->child_in, child_in, attr->cntxt);
if (parent_in != NULL)
apr_dupfile(&attr->parent_in, parent_in, attr->cntxt);
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_childout(apr_procattr_t *attr, apr_file_t *child_out,
apr_file_t *parent_out)
{
if (attr->child_out == NULL && attr->parent_out == NULL)
apr_create_pipe(&attr->child_out, &attr->parent_out, attr->cntxt);
if (child_out != NULL)
apr_dupfile(&attr->child_out, child_out, attr->cntxt);
if (parent_out != NULL)
apr_dupfile(&attr->parent_out, parent_out, attr->cntxt);
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_childerr(apr_procattr_t *attr, apr_file_t *child_err,
apr_file_t *parent_err)
{
if (attr->child_err == NULL && attr->parent_err == NULL)
apr_create_pipe(&attr->child_err, &attr->parent_err, attr->cntxt);
if (child_err != NULL)
apr_dupfile(&attr->child_err, child_err, attr->cntxt);
if (parent_err != NULL)
apr_dupfile(&attr->parent_err, parent_err, attr->cntxt);
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_dir(apr_procattr_t *attr, const char *dir)
{
attr->currdir = apr_pstrdup(attr->cntxt, dir);
if (attr->currdir) {
return APR_SUCCESS;
}
return APR_ENOMEM;
}
apr_status_t apr_setprocattr_cmdtype(apr_procattr_t *attr,
apr_cmdtype_e cmd)
{
attr->cmdtype = cmd;
return APR_SUCCESS;
}
apr_status_t apr_setprocattr_detach(apr_procattr_t *attr, apr_int32_t detach)
{
attr->detached = detach;
return APR_SUCCESS;
}
apr_status_t apr_fork(apr_proc_t *proc, apr_pool_t *cont)
{
int pid;
if ((pid = fork()) < 0) {
return errno;
}
else if (pid == 0) {
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;
}
/* quotes in the string are doubled up.
* Used to escape quotes in args passed to OS/2's cmd.exe
*/
static char *double_quotes(apr_pool_t *cntxt, const char *str)
{
int num_quotes = 0;
int len = 0;
char *quote_doubled_str, *dest;
while (str[len]) {
num_quotes += str[len++] == '\"';
}
quote_doubled_str = apr_palloc(cntxt, len + num_quotes + 1);
dest = quote_doubled_str;
while (*str) {
if (*str == '\"')
*(dest++) = '\"';
*(dest++) = *(str++);
}
*dest = 0;
return quote_doubled_str;
}
apr_status_t apr_create_process(apr_proc_t *proc, const char *progname,
const char * const *args,
const char * const *env,
apr_procattr_t *attr, apr_pool_t *cont)
{
int i, arg, numargs, cmdlen;
apr_status_t status;
const char **newargs;
char savedir[300];
HFILE save_in, save_out, save_err, dup;
int criticalsection = FALSE;
char *extension, *newprogname, *extra_arg = NULL, *cmdline, *cmdline_pos;
char interpreter[1024];
char error_object[260];
apr_file_t *progfile;
int env_len, e;
char *env_block, *env_block_pos;
RESULTCODES rescodes;
/* 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);
}
apr_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;
}
}
interpreter[0] = 0;
extension = strrchr(progname, '.');
if (extension == NULL || strchr(extension, '/') || strchr(extension, '\\'))
extension = "";
if (attr->cmdtype == APR_SHELLCMD || strcasecmp(extension, ".cmd") == 0) {
strcpy(interpreter, "#!" SHELL_PATH);
extra_arg = "/C";
} else if (stricmp(extension, ".exe") != 0) {
status = apr_open(&progfile, progname, APR_READ|APR_BUFFERED, 0, cont);
if (status != APR_SUCCESS && APR_STATUS_IS_ENOENT(status)) {
progname = apr_pstrcat(cont, progname, ".exe", NULL);
}
if (status == APR_SUCCESS) {
status = apr_fgets(interpreter, sizeof(interpreter), progfile);
if (status == APR_SUCCESS) {
if (interpreter[0] == '#' && interpreter[1] == '!') {
if (interpreter[2] != '/' && interpreter[2] != '\\' && interpreter[3] != ':') {
char buffer[300];
if (DosSearchPath(SEARCH_ENVIRONMENT, "PATH", interpreter+2, buffer, sizeof(buffer)) == 0) {
strcpy(interpreter+2, buffer);
} else {
strcat(interpreter, ".exe");
if (DosSearchPath(SEARCH_ENVIRONMENT, "PATH", interpreter+2, buffer, sizeof(buffer)) == 0) {
strcpy(interpreter+2, buffer);
}
}
}
} else {
interpreter[0] = 0;
}
}
}
apr_close(progfile);
}
i = 0;
while (args && args[i]) {
i++;
}
newargs = (const char **)apr_palloc(cont, sizeof (char *) * (i + 4));
numargs = 0;
if (interpreter[0])
newargs[numargs++] = interpreter + 2;
if (extra_arg)
newargs[numargs++] = "/c";
newargs[numargs++] = newprogname = apr_pstrdup(cont, progname);
arg = 1;
while (args && args[arg]) {
newargs[numargs++] = args[arg++];
}
newargs[numargs] = NULL;
for (i=0; newprogname[i]; i++)
if (newprogname[i] == '/')
newprogname[i] = '\\';
cmdlen = 0;
for (i=0; i\" "))
a = apr_pstrcat(cont, "\"", double_quotes(cont, a), "\"", NULL);
*(cmdline_pos++) = ' ';
strcpy(cmdline_pos, a);
cmdline_pos += strlen(cmdline_pos);
}
*(++cmdline_pos) = 0; /* Add required second terminator */
cmdline_pos = strchr(cmdline, ' ');
if (cmdline_pos) {
*cmdline_pos = 0;
cmdline_pos++;
}
/* Create environment block from list of envariables */
if (env) {
for (env_len=1, e=0; env[e]; e++)
env_len += strlen(env[e]) + 1;
env_block = apr_palloc(cont, env_len);
env_block_pos = env_block;
for (e=0; env[e]; e++) {
strcpy(env_block_pos, env[e]);
env_block_pos += strlen(env_block_pos) + 1;
}
*env_block_pos = 0; /* environment block is terminated by a double null */
} else
env_block = NULL;
status = DosExecPgm(error_object, sizeof(error_object),
attr->detached ? EXEC_BACKGROUND : EXEC_ASYNCRESULT,
cmdline, env_block, &rescodes, cmdline);
proc->pid = rescodes.codeTerminate;
if (attr->currdir != NULL) {
chdir(savedir);
}
if (attr->child_in) {
apr_close(attr->child_in);
dup = STDIN_FILENO;
DosDupHandle(save_in, &dup);
DosClose(save_in);
}
if (attr->child_out) {
apr_close(attr->child_out);
dup = STDOUT_FILENO;
DosDupHandle(save_out, &dup);
DosClose(save_out);
}
if (attr->child_err) {
apr_close(attr->child_err);
dup = STDERR_FILENO;
DosDupHandle(save_err, &dup);
DosClose(save_err);
}
if (criticalsection)
DosExitCritSec();
proc->in = attr->parent_in;
proc->err = attr->parent_err;
proc->out = attr->parent_out;
return status;
}
apr_status_t apr_wait_all_procs(apr_proc_t *proc, apr_wait_t *status,
apr_wait_how_e waithow, apr_pool_t *p)
{
RESULTCODES codes;
ULONG rc;
PID pid;
if (!proc)
return APR_ENOPROC;
rc = DosWaitChild(DCWA_PROCESSTREE, wait == APR_WAIT ? DCWW_WAIT : DCWW_NOWAIT, &codes, &pid, 0);
if (rc == 0) {
proc->pid = pid;
if (status)
*status = codes.codeResult;
return APR_CHILD_DONE;
} else if (rc == ERROR_CHILD_NOT_COMPLETE) {
return APR_CHILD_NOTDONE;
}
return APR_OS2_STATUS(rc);
}
apr_status_t apr_wait_proc(apr_proc_t *proc,
apr_wait_how_e wait)
{
RESULTCODES codes;
ULONG rc;
PID pid;
if (!proc)
return APR_ENOPROC;
rc = DosWaitChild(DCWA_PROCESS, wait == APR_WAIT ? DCWW_WAIT : DCWW_NOWAIT, &codes, &pid, proc->pid);
if (rc == 0) {
return APR_CHILD_DONE;
} else if (rc == ERROR_CHILD_NOT_COMPLETE) {
return APR_CHILD_NOTDONE;
}
return APR_OS2_STATUS(rc);
}
apr_status_t apr_get_os_proc(apr_os_proc_t *theproc, apr_proc_t *proc)
{
if (proc == NULL) {
return APR_ENOPROC;
}
*theproc = proc->pid;
return APR_SUCCESS;
}