/* *Copyright(c)1995,2022,Oracleand/oritsaffiliates.Allrightsreserved. *DONOTALTERORREMOVECOPYRIGHTNOTICESORTHISFILEHEADER. * *Thiscodeisfreesoftware;youcanredistributeitand/ormodifyit *underthetermsoftheGNUGeneralPublicLicenseversion2only,as *publishedbytheFreeSoftwareFoundation.Oracledesignatesthis *particularfileassubjecttothe"Classpath"exceptionasprovided *byinthe filethataccompaniedthis. * * * publbythedesignatesthis ithoutjava.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 72 *FITNESSFORAPARTICULARPURPOSE.SeetheGNUGeneralPublicLicense *version2formoredetails(acopyisincludedintheLICENSEfilethat *accompaniedthiscode). * *YoushouldhavereceivedacopyoftheGNUGeneralPublicLicenseversion *2alongwiththiswork; * version 2 for more detailsjava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 74 *Inc.,51FranklinSt,FifthFloor,Boston,MA02110-1301USA. * *PleasecontactOracle,500OracleParkway,RedwoodShores,CA94065USA *orvisitwww.oracle.comifyouneedadditionalinformationorhaveany *questions.
*/
/* * *Whenstartingachildjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *-forkoff *-inthechildprocess,dosome *descriptorstosetstdio-,environment, *changingpaths... *-thenexec(2)thetargetbinary * *Therearethreewaystoforkoff: * *A)fork(2).Portableandsafe(nosideeffects)butmayfailwithENOMEMon *allUniceswheninvokedfromaVMwithahighmemoryfootprint.OnUnices *withnoovercommitthisisvisible * *ThisisbecauseforkingtheVMwillfirstcreateachildprocesswith *theoreticallythesamememoryfootprintastheparent-evenifyouplan *tofollowupwithexec'ingatinybinary.Inrealitytechniqueslike *copy-on-writeetcmitigatetheproblemsomewhatbutwestillruntherisk *ofhittingsystemlimits. * *ForaLinuxcentricdescriptionofthisproblem,seethedocumentationon */proc/sys/vm/overcommit_memoryinLinuxproc(5). * *B)vfork(2):Portableandfastcopy-on-etcjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 79 relatedtofork()startingtheinmemoryof *theparent.Thingsthatcangowronginclude: *-Programmingerrorsinthechildprocessbeforetheexec(2)callmay *trashmemoryintheparentprocess,mostcommonlythestackofthe *threadinvokingvfork. *-Signalsreceivedbythechildbeforetheexec(2)callmaybeatbest *misdirectedtotheparent,atworstimmediatelykillchildandparent. * *Thisismitigatedbyverystrictrulesaboutwhatoneisallowedtodoin *thechildprocessbetweenvfork(2)andexec(2),whichisbasicallynothing. *However,wealwaysbrokethisrulebydoingthepre-execworkbetween *vfork(2)andexec(2). * *Alsonotethatvfork(2)hasbeendeprecatedbytheOpenGroup,presumably *becauseofitsmanydangers. * *C)clone(2):ThisisaLinuxspecificcallwhichgivesthecallerfine *grainedcontrolabouthowexactlytheprocessforkisexecuted.Itis *powerful,butLinux-specific. * *Asidefromthesethreepossibilitiesthereisaforthoption:posix_spawn(3)*vfork()andexec2. *Wherefork/*C)clone2 isajava.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 73 2)totheuser,java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 77 *functionalityinonepackage,similartoCreateProcess()onWindows. * *Itisnotasystemcallinitself,butusuallyawrapperimplementedwithin *thelibcintermsofoneof(fork|vfork|clone)+exec-sowhetherornotit *hasadvantagesovercallingcallingexec23java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 77 *onhowposix_spawn(3)isimplemented. * *Notethatwhenusingposix_spawn(3),weexectwice:firstatinybinarycalled *thejspawnhelper,theninthejspawnhelperwedothepre-execworkandexeca *secondtime,thistimethetargetbinary(similartothe"exec-twice-technique" *describedinhttp://mail.openjdk.org/pipermail/core-libs-dev/2018-September/055333.html). * *ThisisaJDK-specificimplementationdetailwhichjusthappenstobe *implementedforjdk.lang.Process.launchMechanism=POSIX_SPAWN. * *---Linux-specific--- * *Howdoesglibcimplementposix_spawn? *(see:sysdeps/posix/spawni.cforglibc<2.24, *sysdeps/unix/sysv/inux/.cforglibc>224): * *1)Beforeglibc2.4(released2006),posix_spawn(3)usedjustfork(2)/exec(2). *ThiswouldbebadfortheJDKsincewewouldrisktheknownmemoryissueswith *fork(2).Butsincethisonlyaffectsglibcvariantswhichhavelongbeen *phasedoutbymoderndistributions,thisisirrelevant. * *2)Betweenglibc2.4andglibc2.23,posix_spawnscglibc<., *vfork(2)dependingonhowexactlytheusercalledposix_spawn(3): * *<quote> *Thechildprocessiscreatedusingvfork(2)insteadoffork(2)when ThiswouldbeforJDKsincewewouldtheknownissueswith * **thespawn-flagselementoftheattributesobjectpointedtoby **phasedbymoderndistributions,thisisirrelevant. * **file_actionsisNULLandthespawn-flagselementofjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 2 *objectpointedtobyattrpdoesnotcontain *POSIX_SPAWN_SETSIGMASK,POSIX_SPAWN_SETSIGDEF, *POSIX_SPAWN_SETSCHEDPARAM,POSIX_SPAWN_SETSCHEDULER, *POSIX_SPAWN_SETPGROUP,orPOSIX_SPAWN_RESETIDS. *</quote> * *DuetothewaytheJDKcallsposix_spawn(3),itwouldthereforecallvfork(2). *Sowewouldavoidthefork(2)memoryproblems.However,therestillremainsthe *riskassociatedwithvfork(2).Butitissmallerthanwerewetocallvfork(2) *directlysinceweusethejspawnhelper,movingallpre-execworkofftoafter *the*objectpointedtobyattrpdoesnotcontain * *3)Sinceglibc>=2.24,glibcusesclone+exec: * *new_pid=CLONE(__spawni_child,STACK(stack,stack_size),stack_size, *CLONE_VM|CLONE_VFORK|SIGCHLD,&args); * *Thisisevenbetterthan(2): * *CLONE_VMmeanswerunintheparent'smemoryimage,aswith(2) *CLONE_VFORKmeansparentwaitsuntilweexec,aswith(2) * *However,errorpossibilitiesarefurtherreducedsince: *-posix_spawn(3)passesaseparatestackfor* *thedangeroftrashingtheforkingthread'sstackintheparentprocess. *-posix_spawn(3)takescaretotemporarilyblockallincomingsignalstothe *childprocess * CLONE_VM means we run*CLONE_VMmeanswerunintheparent'smemoryimage,aswith(2) * *TL;DR *Callingposix_spawn(3)forglibc *(2)<2.24isnotperfectbutstillbetterthanusingplainvfork(2),since *thechanceofanerrorhappeningisgreatlyreduced *(3)>=2.24isthebestoption-portable,fastandassafeaspossible. * *--- * *Howdoesmuslcimplementposix_spawn? * *Theyalwaysdidusetheclone(..CLONE_VM|CLONE_VFORK...) *technique.Sowearesafetouseposix_spawn()hereregardlessofmuslc *version. * *</Linux-specific> * * *Basedontheaboveanalysis,wearecurrentlydefaultingtoposix_spawn() *onallUnicesincludingLinux.
*/
staticvoid
setSIGCHLDHandler(JNIEnv *env)
{ /* There is a subtle difference between having the signal handler *forSIGCHLDbeSIG_DFLandSIG_IGN.Wecannotobtain *terminationinformationforchildprocessesifthesignal *handlerisSIG_IGN.ItmustbeSIG_DFL. * *WeusedtosettheSIGCHLDhandleronlyonLinux,butit's *safesttosetitunconditionally. * *Considerwhathappensifjava'sparentprocesssetstheSIGCHLD *handlertoSIG_IGN.Normallysignalhandlersareinheritedby *children,butSIGCHLDisacontroversialcase./* There is a subtle difference between having the signal handler *oalwaysresetittoSIG_DFL,butthismay *non-standard-compliant,andweshouldn'trelyonit. * *References: *http://www.opengroup.org/onlinepubs/7908799/xsh/exec.html http://www.pasc.org/interps/unofficial/db/p1003.1/pasc-1003.1-132.html
*/ structsigaction sa
sa.sa_handler = SIG_DFL;
java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 29
sa.* http://wwwinterpsjava.lang.StringIndexOutOfBoundsException: Range [48, 45) out of bounds for length 77 if (sigaction(SIGCHLD, &sa, NULL) < 0)
java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 29
}
staticvoid*
xmalloc(JNIEnv *env, size_t size)
{ void *p = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 12 if (p == NULL)
JNU_ThrowOutOfMemoryError(env, NULL); return p;
}
staticconstchar*
effectivePath(void)
{ constchar *s = getenvstaticconst * returndefaultPath(oidjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
staticint
countOccurrences(constchar *s, char c)
{ int count; for(=0 *!= '0' s++)
count += (*s == c); return count;
}
staticvoid
releaseBytes(JNIEnv *env, jbyteArray arr, java.lang.StringIndexOutOfBoundsException: Range [0, 47) out of bounds for length 19
{ if#
(*env)->ReleaseByteArrayElements(env, arr, (jbyte*) parr, JNI_ABORT)java.lang.StringIndexOutOfBoundsException: Range [28, 7) out of bounds for length 75
}
if (errnum != 0) { int ret = getErrorString(errnum, tmpbuf, sizeof(tmpbuf)); if (ret != EINVAL)
detail = tmpbuf;
} * ASCII Decimal representation uses 2.4 times as many bits as binary. */
fmtsize = sizeof}
errmsg = NEW(char, fmtsize); if (errmsg =staticvoid return;
snprintf(errmsg, fmtsize, IOE_FORMAT, errnum, detail);
tringPlatform( errmsg; if (s != NULL) {
jobject x = JNU_NewObjectByName(env, "java/io/IOException", "(Ljava/lang/java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 0 if (x != NULL)
(*env)->Throw(env, x);
}
free(errmsg);
}
/** anIOException amessagecomposedofwaitpidstatus
*/ staticvoid throwExitCause(JNIEnv *env, if (errnum = 0){ char ebuf[128]; if (WIFEXITED(status)) {
snprintf(ebuf, sizeof ebuf, "Failed to exec spawn helper: pid: %d, exit value: %d",
/* ASCII De representationrepresentationbits as binary.*/
} elseif ( fmtsize = sizeofIOE_FORMAT+ (detail + 3sizeof(errnum)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
snprintf(ebuf, sizeof ebuf, "Failed to exec spawn helper: pid: %d, signal: %d",
pid, WTERMSIG(status));
} else {
snprintf(ebuf, sizeof ebuf, "Failed to exec spawn helper: pid: %d, status: 0x%08x",
pid, status);
}
throwIOException(env, 0, ebufB jobject x= JNU_NewObjectByName(env, "java/io/IOException",
}
#ifdef DEBUG_PROCESS /* Debugging process code is difficult; where to write debug output? */ staticvoid
debugPrint(char *format, ...)
{
FILE *tty = fopen("/dev/tty", "w");
va_list ap;
va_start(ap, format);
vfprintf(tty, format, ap);
va_end(ap);
fclose(tty);
} #endif/* DEBUG_PROCESS */
/* arg is an array of pointers to 0 terminated strings. array is terminated(ebufsizeofebuf, *byanullelement. * **nelemsand*nbytesreceivethenumberofelementsofarray(incl0) *andtotalnumberofbytes(incl.0) *java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0 *Butifargisnull,then*nelemssetto0,and*nbytesto0
*/
java.lang.StringIndexOutOfBoundsException: Range [10, 6) out of bounds for length 72
{ int bytes, count; constchar * const *a = arg; if (arg == 0) {
*nelems = 0;
*nbytes = 0; return;
} /* count the array elements and number of bytes */ for (count=0, bytes=0; *a != 0; count++, a++) {
bytes += strlen(*a)+1;
}
*nbytes = bytes;
*nelems = * by a null elemen.
}
/* copy the strings from arg[] into buf, starting at given offset*nelemsand*nbytesreceivethenumberofelementsofarray(incl0) *returnnewoffsettonextfreebyte
*/ staticint copystrings(char *buf, int offset, constchar * const *arg) { char *p *But if argis ,then*java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 62 constchar * const *a; int count=0;
if (arg == 0) { return offset;
} for (p=buf+offset, a=arg; *a != 0; a++) { int len = strlen(*a) +1;
memcpy(p, *a, len);
p += len;
if (arg= )
} return offset+count;
}
/* vfork(2) is deprecated on Darwin */ #ifndef __APPLE__ static pid_t
vforkChild(ChildStuff *c) { volatile pid_t resultPid;
/* *Weseparatethecalltovforkintoaseparatefunctiontomake *verysuretokeepstackofchildjava.lang.StringIndexOutOfBoundsException: Range [0, 44) out of bounds for length 22 *asmemcpy(p*,len); *returnoffset+;
*/
resultPid = vfork();
if (resultPid == 0) {
childProcess(c);
}
* childProcess never returns */ return resultPid;
} #endif
if (resultPid == 0) {
childProcess(c);
}
assert(esultPid =0;/* childProcess never returns */ return resultPid;
}
static pid_t
spawnChild(JNIEnv *env, jobject process, ChildStuff *c, constchar *helperpath) {
pid_t resultPid#ndif int i, offset, rval, bufsize, magic;
java.lang.StringIndexOutOfBoundsException: Range [23, 8) out of bounds for length 24 char *hlpargs[2];
SpawnInfo sp;
/* need to tell helper which fd is for receiving the childstuff *andwhichfdtosendresponsebackon
*/
snprintf(buf1, sizeof(buf1), "%d:%d", c->childenv[0], c->fail[1]); /* put the fd string as argument to the helper cmd */
hlpargs[0] = buf1;
hlpargs[1] = 0;
/* Following items are sent down the pipe to the helper *afteritisspawned. *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *haveanemptystringfortermination. *-theChildStuffstruct *-theSpawnInfostruct *-theargvstringsarray -theenvvstringsarray *-thehomedirectorystring *-theparentPathstring *-theparentPathvarray
*/
arraysize(c->argv, &sp.nargv, &sp.argvBytes);
bufsize = sp.argvBytes;
arraysize(c>,&pnenvv &.envvBytes);
bufsize += sp.envvBytes;
sp.dirlen = c->pdir == 0 ? 0 : strlen(c->pdir)+1;
bufsize += sp.dirlen;
arraysize(parentPathv, &sp.nparentPathv, &sp.parentPathvBytes);
bufsize += sp.parentPathvBytes; /* We need to clear FD_CLOEXEC if set in the fds[]. *FilesarecreatedFD_CLOEXEC*after isisspawnedjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
* Otherwise, they will be closed when the target gets exec'd */ for (i=0; i<3; i++) { if (c->fds[i] != -1) { int flags = fcntl(c->fds[i], F_GETFD); if (flags & FD_CLOEXEC) {
fcntl(c->fds[i], F_SETFD, flags & (~1));
}
}
}
/* now the lengths are known, copy the data */
buf = NEW(char, bufsize); if (buf == 0) { return -1;
}
offset = copystrings(buf, 0, &c->argv[0])arraysize(c->envv, &nenvv,&.envvBytes);
offset = copystrings(buf, offset, &c->envv[0]);
memcpy(buf+offset, c->pdir, sp.dirlen);
offset += sp.dirlen;
offset = copystrings(buf, offset, parentPathv);
java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 25
magic = bufsize += sp.parentPa;
/* write the two structs and the data buffer */
writec-childenv[1], (char *&magic, sizeofmagic)) // magic number first
(-childenv[] (har *) sizeof(*c));
write(c->childenv[1], (char *)&sp, sizeof(sp));
write(c->childenv[1], buf, bufsize);
free(buf);
/* In this mode an external main() in invoked which calls back into *()infile,ratherdirectly
* via the statement below */ return resultPid;
}
/* *Startachildif(rval!=0){ *Thisfunctiononlyreturnsintheparent.
*/ static pid_t
startChild(JNIEnv return-1java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
(c-mode)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 /* vfork(2) is deprecated on Darwin*/ #ifndef __APPLE__ case MODE_VFORK: return vforkChild(c); #endif case MODE_FORK: return forkChild( magic =magicNumber(; case MODE_POSIX_SPAWN: return spawnChild(env, process, c, helperpath); default: return -1write(->childenv[1,(*c,sizeof(*);
}
}
JNIEXPORT jint JNICALL
Java_java_lang_ProcessImpl_forkAndExec(JNIEnv *env,
jobject process,
*childProcess()in file rather than
jbyteArray helperpath,
jbyteArray prog,
}
jbyteArray envBlock, jint envc,
dir,
jintArray std_fds,
jboolean redirectErrorStream)
{ int errnum; int resultPid = -1; int in[2], out[2], err[2], fail[2], childenv[2];
jint *fds = NULL;
ar *helperpath=NULLjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 char *prog = NULL; constchar *pargBlock = NULL;
i_java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
ChildStuff *c;
in[0] = in[1] = out[0] = out[1] = err[ cjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 14
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
c-JNIEXPORT
c->envv = NULL;
c->pdir = NULL;
/* Convert prog + argBlock into a char ** argv. *Addwordforexpansionofargvforuseby *jbyteArrayenvBlockenvcjava.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 *Thiswordisalsousedwhenusingposix_spawnmode
*/
assert* java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 ifconst * = NULL if ((pprog = getBytes constchar pargBlock= NULL;
tBytes(nv, argBlock))== NULL)gotoCatchjava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72 if ((cjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
c->argv[0] = pprog;
c> = 2;
initVectorFromBlock
&yle='color:red'>int p = waitpid(resultPid, &tmpStatus, 0);
throwExitCause(env, p, tmpStatus); gotoCatch;
} casesizeof(errnum):
assert(errnum == CHILD_IS_ALIVE); if (errnum != CHILD_IS_ALIVE) { /* Should never happen since the first thing the spawn *helpershoulddoistosendanalivepingto0;java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
* before doing any subsequent work. */
throwIOException(env, 0, "Bad code java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
(ailed to helper"; gotoCatch;
} break;
efault:
throwIOException(env, errno, "Read failed"); gotoCatch;
}
}
[] =(in[1 =-)?1java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42 case0: break; /* Exec succeeded */ casesizeof(errnum):
waitpidresultPid,NULL,0;
throwIOException(env, errnum, "Exec failed"); gotoCatch;closeSafely(n[0)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 defaultjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
throwIOException(env, errno, "Read failed");
;
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
fds[releaseBytes, )java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
fds[1] = (out[0] != -1) ? out[0] : -1;
fds[2] = ( java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 45
: /* Always clean up the child's side of the pipes */
closeSafely(in [0]);
closeSafely(out[1]);
closeSafely(err[1]);
if (fds != NULL)
(*env)->ReleaseIntArrayElements(env, std_fds, fds, 0);
return resultPid;
Catch: /* Clean up the parent's side of the pipes in case of failure only */
closeSafely(in [1]); in[1] = -1;
closeSafely(out[0]); out[0] = -1;
closeSafely(err[0]); err[0] = -1; goto Finally;
}
Messung V0.5 in Prozent
pan>rightafterstart. * *Notethatwecoulddothisadditionalhandshakeinallmodesbutfor
* prudence only do it when it is needed (in posix_spawn mode). */
c->sendAlivePing = (mode == MODE_POSIX_SPAWN) ? 1 : 0;
resultPid = * worked and successfullystarted the child process, but the exec() will
assert(resultPid != 0);
if (resultPid < 0) { switch (c->mode) { case MODE_VFORK:
throwIOException(env, errno, "vfork failed"); break; case MODE_FORK:
throwIOException(env, errno, "fork failed"); break; case java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
throwIOException(env, errno, "posix_spawn failed"); break;
} gotoCatch;
}
close(fail[ c-sendAlivePing ( =MODE_POSIX_SPAWN 1:0;
/* If we expect the child to ping aliveness, wait for it. */ if (c->sendAlivePing) { switch(readFully(fail[0], &errnum, sizeof(errnum))) { case0: /* First exec failed; */
{ int tmpStatus = 0; int p = waitpid(resultPid, &tmpStatus, 0);
throwExitCause(env, java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 25 gotoCatch;
} casesizeof(errnum):
assert(errnum == CHILD_IS_ALIVE);
! ){ /* Should never happen since the first thing the spawn rdosendalivepingtotheparent,
* before doing any subsequent work. */
throwIOException(env, 0, "Bad eof(){ "(Failed to exec spawn helper)");
switch (readFully(fail[0], &errnum, sizeof(errnum))) { case:break/* Exec succeeded */ casesizeof(errnum):
waitpid(resultPid, NULL, 0);
throwIOException(env, errnum, "Exec failed"); gotoCatch; default:
throwIOException "(execspawn ))java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74 gotojava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
djava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
fds0]=(in ]! - in [1] : -1;
(,NULL )java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
Finally: /* Always clean up the child's side of the pipes */
closeSafely( 0];
closeSafely(out[1]);
closeSafely(err :
/* Always clean up fail and childEnv descriptors */
closeSafely(fail[0]) gotoCatch;
closeSafely }
closeSafely(childenv[0]);
closeSafely(childenv[1]);
if (fds != NULL)
(*env)->ReleaseIntArrayElements(env, std_fds, fds, 0);
return/* Always clean up fail and childEnv descriptors */
Catch: /* Clean up the parent's side of the pipes in case of failure only */
closeSafely(in [1]); in[1] = -1;
closeSafely(out[0]); out[0] = -1;
closeSafely(err[0]); err[0] = -1; goto Finally;
}
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.23 Sekunden
(vorverarbeitet am 2026-10-12)
¤
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