version 1.1.2.2, 2013/12/05 15:04:20
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version 1.1.2.6, 2013/12/06 00:19:54
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/************************************************************************* |
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* (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org> |
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* by Michael Pounov <misho@elwix.org> |
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* |
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* $Author$ |
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* $Id$ |
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* |
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************************************************************************** |
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The ELWIX and AITNET software is distributed under the following |
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terms: |
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All of the documentation and software included in the ELWIX and AITNET |
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Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
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Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
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by Michael Pounov <misho@elwix.org>. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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1. Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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2. Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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3. All advertising materials mentioning features or use of this software |
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must display the following acknowledgement: |
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This product includes software developed by Michael Pounov <misho@elwix.org> |
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ELWIX - Embedded LightWeight unIX and its contributors. |
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4. Neither the name of AITNET nor the names of its contributors |
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may be used to endorse or promote products derived from this software |
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without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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SUCH DAMAGE. |
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*/ |
#include "global.h" |
#include "global.h" |
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Line 26 e_popen(const char *command, const char *type, pid_t *
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Line 71 e_popen(const char *command, const char *type, pid_t *
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int pdes[2], pid, twoway, cloexec; |
int pdes[2], pid, twoway, cloexec; |
char *argv[4]; |
char *argv[4]; |
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if (!command || !type) |
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return NULL; |
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cloexec = strchr(type, 'e') != NULL; |
cloexec = strchr(type, 'e') != NULL; |
/* |
/* |
* Lite2 introduced two-way popen() pipes using _socketpair(). |
* Lite2 introduced two-way popen() pipes using _socketpair(). |
Line 40 e_popen(const char *command, const char *type, pid_t *
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Line 88 e_popen(const char *command, const char *type, pid_t *
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(type[1] && (type[1] != 'e' || type[2]))) |
(type[1] && (type[1] != 'e' || type[2]))) |
return (NULL); |
return (NULL); |
} |
} |
if ((cloexec ? pipe2(pdes, O_CLOEXEC) : pipe(pdes)) < 0) | if (socketpair(AF_UNIX, SOCK_STREAM | (cloexec ? O_CLOEXEC : 0), |
| 0, pdes) < 0) { |
| LOGERR; |
return (NULL); |
return (NULL); |
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} |
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if (!(cur = e_malloc(sizeof(struct tagPIOPID)))) { |
if (!(cur = e_malloc(sizeof(struct tagPIOPID)))) { |
close(pdes[0]); |
close(pdes[0]); |
Line 51 e_popen(const char *command, const char *type, pid_t *
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Line 102 e_popen(const char *command, const char *type, pid_t *
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argv[0] = "sh"; |
argv[0] = "sh"; |
argv[1] = "-c"; |
argv[1] = "-c"; |
argv[2] = (char *)command; | argv[2] = (char *) command; |
argv[3] = NULL; |
argv[3] = NULL; |
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THREAD_LOCK(); |
THREAD_LOCK(); |
switch (pid = vfork()) { |
switch (pid = vfork()) { |
case -1: /* Error. */ |
case -1: /* Error. */ |
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LOGERR; |
THREAD_UNLOCK(); |
THREAD_UNLOCK(); |
close(pdes[0]); |
close(pdes[0]); |
close(pdes[1]); |
close(pdes[1]); |
Line 140 e_pclose(FILE *iop)
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Line 192 e_pclose(FILE *iop)
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int pstat; |
int pstat; |
pid_t pid; |
pid_t pid; |
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if (!iop) |
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return -1; |
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/* |
/* |
* Find the appropriate file pointer and remove it from the list. |
* Find the appropriate file pointer and remove it from the list. |
*/ |
*/ |
Line 168 e_pclose(FILE *iop)
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Line 223 e_pclose(FILE *iop)
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e_free(cur); |
e_free(cur); |
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return (pid == -1 ? -1 : pstat); |
return (pid == -1 ? -1 : pstat); |
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} |
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/* |
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* pio_pgetpid() - Get tagPIOPID structure from file handle |
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* |
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* @iop = popen handle |
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* return: NULL error or !=NULL tagPIOPID structure |
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*/ |
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struct tagPIOPID * |
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pio_pgetpid(FILE * __restrict iop) |
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{ |
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struct tagPIOPID *p; |
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if (!iop) |
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return NULL; |
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THREAD_LOCK(); |
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SLIST_FOREACH(p, &pio_pidlist, next) |
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if (p->fp == iop) |
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break; |
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THREAD_UNLOCK(); |
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return p; |
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} |
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/* |
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* pio_pchkpid() - Check exit status of child programs |
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* |
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* @pids = return tagPIOPID structures of exited programs, |
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* if !=NULL must call array_Destroy() |
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* return: -1 error or >-1 exited programs |
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*/ |
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int |
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pio_pchkpid(array_t ** __restrict pids) |
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{ |
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register int ret = 0; |
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struct tagPIOPID *p; |
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array_t *pa; |
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if (pids) { |
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if (!(pa = array_Init(0))) |
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return -1; |
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else |
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*pids = pa; |
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} |
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THREAD_LOCK(); |
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SLIST_FOREACH(p, &pio_pidlist, next) |
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if (p->fp && waitpid(p->pid, &p->stat, WNOHANG) > 0) { |
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if (pids) |
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array_Push(pa, p, 0); |
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ret++; |
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} |
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THREAD_UNLOCK(); |
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return ret; |
} |
} |