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version 1.1.2.5, 2013/12/05 15:38:48
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version 1.9, 2024/10/10 23:55:49
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Line 12 terms:
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Line 12 terms:
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| All of the documentation and software included in the ELWIX and AITNET |
All of the documentation and software included in the ELWIX and AITNET |
| Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
| |
|
| Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 | Copyright 2004 - 2024 |
| by Michael Pounov <misho@elwix.org>. All rights reserved. |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
| |
|
| Redistribution and use in source and binary forms, with or without |
Redistribution and use in source and binary forms, with or without |
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Line 46 SUCH DAMAGE.
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Line 46 SUCH DAMAGE.
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| #include "global.h" |
#include "global.h" |
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#ifdef __linux__ |
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#define __USE_GNU |
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#ifndef O_CLOEXEC |
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#define O_CLOEXEC 02000000 |
| |
#endif |
| |
#endif |
| |
|
| extern char **environ; |
extern char **environ; |
| |
|
| pio_pid_t pio_pidlist = SLIST_HEAD_INITIALIZER(pio_pidlist); |
pio_pid_t pio_pidlist = SLIST_HEAD_INITIALIZER(pio_pidlist); |
| |
#ifdef HAVE_LIBPTHREAD |
| static pthread_mutex_t pidlist_mutex = PTHREAD_MUTEX_INITIALIZER; |
static pthread_mutex_t pidlist_mutex = PTHREAD_MUTEX_INITIALIZER; |
| |
|
| #define THREAD_LOCK() if (__isthreaded) pthread_mutex_lock(&pidlist_mutex) | #define THREAD_LOCK() pthread_mutex_lock(&pidlist_mutex) |
| #define THREAD_UNLOCK() if (__isthreaded) pthread_mutex_unlock(&pidlist_mutex) | #define THREAD_UNLOCK() pthread_mutex_unlock(&pidlist_mutex) |
| | #else |
| | #define THREAD_LOCK() |
| | #define THREAD_UNLOCK() |
| | #endif |
| |
|
| |
|
| /* |
/* |
| * e_popen() - ELWIX replacement of standard popen |
* e_popen() - ELWIX replacement of standard popen |
| * |
* |
| * @command = command |
* @command = command |
| * @type = type |
* @type = type |
| * @ppid = return pid of child program |
* @ppid = return pid of child program |
| |
* If value of *ppid is -1 when invoke routine then child will be session leader |
| * return: NULL error or !=NULL open program |
* return: NULL error or !=NULL open program |
| */ |
*/ |
| |
#ifdef POPEN_STREAM |
| FILE * |
FILE * |
| |
#else |
| |
int |
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#endif |
| e_popen(const char *command, const char *type, pid_t *ppid) |
e_popen(const char *command, const char *type, pid_t *ppid) |
| { |
{ |
| |
return e_popen2(command, type, ppid, NULL, 0); |
| |
} |
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|
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/* |
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* e_popen2() - ELWIX replacement of standard popen with post close of chosen handles |
| |
* |
| |
* @command = command |
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* @type = type |
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* @ppid = return pid of child program |
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* If value of *ppid is -1 when invoke routine then child will be session leader |
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* @fds = file descriptor array for close when fork |
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* @fdslen = fds number of descriptors |
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* return: NULL error or !=NULL open program |
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*/ |
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#ifdef POPEN_STREAM |
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FILE * |
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#else |
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int |
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#endif |
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e_popen2(const char *command, const char *type, pid_t *ppid, int *fds, size_t fdslen) |
| |
{ |
| struct tagPIOPID *cur, *p; |
struct tagPIOPID *cur, *p; |
| FILE *iop; | int pdes[2], pid, twoway, cloexec, i; |
| int pdes[2], pid, twoway, cloexec; | |
| char *argv[4]; |
char *argv[4]; |
| |
|
| if (!command || !type) |
if (!command || !type) |
| |
#ifdef POPEN_STREAM |
| return NULL; |
return NULL; |
| |
#else |
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return -1; |
| |
#endif |
| |
|
| cloexec = strchr(type, 'e') != NULL; |
cloexec = strchr(type, 'e') != NULL; |
| /* |
/* |
|
Line 82 e_popen(const char *command, const char *type, pid_t *
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Line 123 e_popen(const char *command, const char *type, pid_t *
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| if (strchr(type, '+')) { |
if (strchr(type, '+')) { |
| twoway = 1; |
twoway = 1; |
| type = "r+"; |
type = "r+"; |
| } else { | } else { |
| twoway = 0; |
twoway = 0; |
| if ((*type != 'r' && *type != 'w') || | if ((*type != 'r' && *type != 'w') || |
| (type[1] && (type[1] != 'e' || type[2]))) | (type[1] && (type[1] != 'e' || type[2]))) |
| return (NULL); | #ifdef POPEN_STREAM |
| | return NULL; |
| | #else |
| | return -1; |
| | #endif |
| } |
} |
| if ((cloexec ? pipe2(pdes, O_CLOEXEC) : pipe(pdes)) < 0) | if (socketpair(AF_UNIX, SOCK_STREAM | (cloexec ? O_CLOEXEC : 0), |
| return (NULL); | 0, pdes) < 0) { |
| | LOGERR; |
| | #ifdef POPEN_STREAM |
| | return NULL; |
| | #else |
| | return -1; |
| | #endif |
| | } |
| |
|
| if (!(cur = e_malloc(sizeof(struct tagPIOPID)))) { |
if (!(cur = e_malloc(sizeof(struct tagPIOPID)))) { |
| close(pdes[0]); |
close(pdes[0]); |
| close(pdes[1]); |
close(pdes[1]); |
| return (NULL); | #ifdef POPEN_STREAM |
| | return NULL; |
| | #else |
| | return -1; |
| | #endif |
| } |
} |
| |
|
| 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; |
| |
|
| THREAD_LOCK(); |
THREAD_LOCK(); |
| switch (pid = vfork()) { |
switch (pid = vfork()) { |
| case -1: /* Error. */ |
case -1: /* Error. */ |
| |
LOGERR; |
| THREAD_UNLOCK(); |
THREAD_UNLOCK(); |
| close(pdes[0]); |
close(pdes[0]); |
| close(pdes[1]); |
close(pdes[1]); |
| e_free(cur); |
e_free(cur); |
| return (NULL); | #ifdef POPEN_STREAM |
| | return NULL; |
| | #else |
| | return -1; |
| | #endif |
| /* NOTREACHED */ |
/* NOTREACHED */ |
| case 0: /* Child. */ |
case 0: /* Child. */ |
| |
if (ppid && *ppid == -1) |
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setsid(); |
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|
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if (fds && fdslen) { |
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for (i = 0; i < fdslen; i++) |
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close(fds[i]); |
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} |
| |
|
| if (*type == 'r') { |
if (*type == 'r') { |
| /* |
/* |
| * The _dup2() to STDIN_FILENO is repeated to avoid |
* The _dup2() to STDIN_FILENO is repeated to avoid |
|
Line 146 e_popen(const char *command, const char *type, pid_t *
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Line 215 e_popen(const char *command, const char *type, pid_t *
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| close(pdes[1]); |
close(pdes[1]); |
| } |
} |
| SLIST_FOREACH(p, &pio_pidlist, next) |
SLIST_FOREACH(p, &pio_pidlist, next) |
| close(fileno(p->fp)); | #ifdef POPEN_STREAM |
| | close(fileno(p->f.fp)); |
| | #else |
| | close(p->f.fd); |
| | #endif |
| execve(_PATH_BSHELL, argv, environ); |
execve(_PATH_BSHELL, argv, environ); |
| _exit(127); |
_exit(127); |
| /* NOTREACHED */ |
/* NOTREACHED */ |
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Line 158 e_popen(const char *command, const char *type, pid_t *
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Line 231 e_popen(const char *command, const char *type, pid_t *
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| |
|
| /* Parent; assume fdopen can't fail. */ |
/* Parent; assume fdopen can't fail. */ |
| if (*type == 'r') { |
if (*type == 'r') { |
| iop = fdopen(pdes[0], type); | #ifdef POPEN_STREAM |
| | cur->f.fp = fdopen(pdes[0], type); |
| | #else |
| | cur->f.fd = pdes[0]; |
| | #endif |
| close(pdes[1]); |
close(pdes[1]); |
| } else { |
} else { |
| iop = fdopen(pdes[1], type); | #ifdef POPEN_STREAM |
| | cur->f.fp = fdopen(pdes[1], type); |
| | #else |
| | cur->f.fd = pdes[1]; |
| | #endif |
| close(pdes[0]); |
close(pdes[0]); |
| } |
} |
| |
|
| /* Link into list of file descriptors. */ |
/* Link into list of file descriptors. */ |
| cur->fp = iop; |
|
| cur->pid = pid; |
cur->pid = pid; |
| THREAD_LOCK(); |
THREAD_LOCK(); |
| SLIST_INSERT_HEAD(&pio_pidlist, cur, next); |
SLIST_INSERT_HEAD(&pio_pidlist, cur, next); |
| THREAD_UNLOCK(); |
THREAD_UNLOCK(); |
| |
|
| return (iop); | #ifdef POPEN_STREAM |
| | return cur->f.fp; |
| | #else |
| | return cur->f.fd; |
| | #endif |
| } |
} |
| |
|
| /* |
/* |
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Line 182 e_popen(const char *command, const char *type, pid_t *
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Line 266 e_popen(const char *command, const char *type, pid_t *
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| * return: -1 error or !=-1 pid status |
* return: -1 error or !=-1 pid status |
| */ |
*/ |
| int |
int |
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#ifdef POPEN_STREAM |
| e_pclose(FILE *iop) |
e_pclose(FILE *iop) |
| |
#else |
| |
e_pclose(int iop) |
| |
#endif |
| { |
{ |
| struct tagPIOPID *cur, *last = NULL; |
struct tagPIOPID *cur, *last = NULL; |
| int pstat; | int pstat = 0; |
| pid_t pid; |
pid_t pid; |
| |
|
| if (!iop) |
if (!iop) |
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Line 196 e_pclose(FILE *iop)
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Line 284 e_pclose(FILE *iop)
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| */ |
*/ |
| THREAD_LOCK(); |
THREAD_LOCK(); |
| SLIST_FOREACH(cur, &pio_pidlist, next) { |
SLIST_FOREACH(cur, &pio_pidlist, next) { |
| if (cur->fp == iop) | #ifdef POPEN_STREAM |
| | if (cur->f.fp == iop) |
| | #else |
| | if (cur->f.fd == iop) |
| | #endif |
| break; |
break; |
| last = cur; |
last = cur; |
| } |
} |
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Line 210 e_pclose(FILE *iop)
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Line 302 e_pclose(FILE *iop)
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| SLIST_REMOVE_AFTER(last, next); |
SLIST_REMOVE_AFTER(last, next); |
| THREAD_UNLOCK(); |
THREAD_UNLOCK(); |
| |
|
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#ifdef POPEN_STREAM |
| fclose(iop); |
fclose(iop); |
| |
#else |
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close(iop); |
| |
#endif |
| |
|
| do { |
do { |
| pid = wait4(cur->pid, &pstat, 0, NULL); |
pid = wait4(cur->pid, &pstat, 0, NULL); |
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Line 228 e_pclose(FILE *iop)
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Line 324 e_pclose(FILE *iop)
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| * return: NULL error or !=NULL tagPIOPID structure |
* return: NULL error or !=NULL tagPIOPID structure |
| */ |
*/ |
| struct tagPIOPID * |
struct tagPIOPID * |
| pio_pgetpid(FILE * __restrict iop) | #ifdef POPEN_STREAM |
| | pio_pgetpid(FILE *iop) |
| | #else |
| | pio_pgetpid(int iop) |
| | #endif |
| { |
{ |
| struct tagPIOPID *p; |
struct tagPIOPID *p; |
| |
|
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Line 237 pio_pgetpid(FILE * __restrict iop)
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Line 337 pio_pgetpid(FILE * __restrict iop)
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| |
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| THREAD_LOCK(); |
THREAD_LOCK(); |
| SLIST_FOREACH(p, &pio_pidlist, next) |
SLIST_FOREACH(p, &pio_pidlist, next) |
| if (p->fp == iop) | #ifdef POPEN_STREAM |
| | if (p->f.fp == iop) |
| | #else |
| | if (p->f.fd == iop) |
| | #endif |
| break; |
break; |
| THREAD_UNLOCK(); |
THREAD_UNLOCK(); |
| |
|
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Line 256 pio_pchkpid(array_t ** __restrict pids)
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Line 360 pio_pchkpid(array_t ** __restrict pids)
|
| { |
{ |
| register int ret = 0; |
register int ret = 0; |
| struct tagPIOPID *p; |
struct tagPIOPID *p; |
| array_t *pa; | array_t *pa = NULL; |
| |
|
| if (pids) { |
if (pids) { |
| if (!(pa = array_Init(0))) |
if (!(pa = array_Init(0))) |
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Line 267 pio_pchkpid(array_t ** __restrict pids)
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Line 371 pio_pchkpid(array_t ** __restrict pids)
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| |
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| THREAD_LOCK(); |
THREAD_LOCK(); |
| SLIST_FOREACH(p, &pio_pidlist, next) |
SLIST_FOREACH(p, &pio_pidlist, next) |
| if (p->fp && waitpid(p->pid, &p->stat, WNOHANG) > 0) { | #ifdef POPEN_STREAM |
| | if (p->f.fp && waitpid(p->pid, &p->stat, WNOHANG) > 0) { |
| | #else |
| | if (p->f.fd && waitpid(p->pid, &p->stat, WNOHANG) > 0) { |
| | #endif |
| if (pids) |
if (pids) |
| array_Push(pa, p, 0); |
array_Push(pa, p, 0); |
| ret++; |
ret++; |