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File ksh93-fdstatus.dif of Package ksh
| Fix for bnc#814135, bnc#808449, bnc#835885, and bnc#844071 | - crash in bestreclaim() after traversing a memory block with a very large size (ksh) | - set -k does not work properly with ksh-93t-13.17 and higher | - Problem after update of ksh from ksh-93u-0.14.1 to ksh-93u-0.22.1 | - Regression: Fix crash in sfio code of libast | This is a backport from the beta version ksh93v-2013-10-10 --- src/cmd/ksh93/bltins/enum.c +++ src/cmd/ksh93/bltins/enum.c 2013-10-25 13:26:45.739248213 +0000 @@ -266,7 +266,9 @@ int b_enum(int argc, char** argv, Shblti optdisc.opt.infof = enuminfo; optdisc.np = tp; nv_addtype(tp, enum_type, &optdisc.opt, sizeof(optdisc)); + nv_onattr(np,NV_LTOU|NV_UTOL); } + nv_open(0,shp->var_tree,0); return error_info.errors != 0; } --- src/cmd/ksh93/bltins/read.c +++ src/cmd/ksh93/bltins/read.c 2013-10-25 13:26:45.740248120 +0000 @@ -280,24 +280,25 @@ int sh_readline(register Shell_t *shp,ch if(size || (flags>>D_FLAG)) /* delimiter not new-line or fixed size read */ { if((shp->fdstatus[fd]&IOTTY) && !keytrap) - tty_raw(fd,1); + tty_raw(sffileno(iop),1); if(!(flags&(N_FLAG|NN_FLAG))) { delim = ((unsigned)flags)>>D_FLAG; ep->e_nttyparm.c_cc[VEOL] = delim; ep->e_nttyparm.c_lflag |= ISIG; - tty_set(fd,TCSADRAIN,&ep->e_nttyparm); + tty_set(sffileno(iop),TCSADRAIN,&ep->e_nttyparm); } #if defined(__linux__) else if ((shp->fdstatus[fd]&(IOTTY|IONOSEEK))==0) { struct stat st; - if ((fstat(fd, &st) == 0) && S_ISFIFO(st.st_mode)) + int fn = sffileno(iop); + if ((fstat(fn, &st) == 0) && S_ISFIFO(st.st_mode)) { int fdflg; - if (((fdflg = fcntl(fd, F_GETFL)) != -1) && !(fdflg & O_NONBLOCK)) - fcntl(fd, F_SETFL, fdflg|O_NONBLOCK); - shp->fdstatus[fd] |= IONOSEEK; + if (((fdflg = fcntl(fn, F_GETFL)) != -1) && !(fdflg & O_NONBLOCK)) + fcntl(fn, F_SETFL, fdflg|O_NONBLOCK); + shp->fdstatus[fn] |= IONOSEEK; } } #endif @@ -342,7 +343,7 @@ int sh_readline(register Shell_t *shp,ch size = nv_size(np); } was_write = (sfset(iop,SF_WRITE,0)&SF_WRITE)!=0; - if(fd==0) + if(sffileno(iop)==0) was_share = (sfset(iop,SF_SHARE,shp->redir0!=2)&SF_SHARE)!=0; if(timeout || (shp->fdstatus[fd]&(IOTTY|IONOSEEK))) { @@ -366,7 +367,7 @@ int sh_readline(register Shell_t *shp,ch else end = var + sizeof(buf) - 1; up = cur = var; - if((sfset(iop,SF_SHARE,1)&SF_SHARE) && fd!=0) + if((sfset(iop,SF_SHARE,1)&SF_SHARE) && sffileno(iop)!=0) was_share = 1; if(size==0) { @@ -473,7 +474,7 @@ int sh_readline(register Shell_t *shp,ch timerdel(timeslot); if(binary && !((size=nv_size(np)) && nv_isarray(np) && c!=size)) { - if((c==size) && np->nvalue.cp && !nv_isarray(np)) + if((c==size) && np->nvalue.cp && !nv_isarray(np) && !np->nvfun) memcpy((char*)np->nvalue.cp,var,c); else { @@ -819,7 +820,7 @@ done: sfset(iop,SF_SHARE,0); nv_close(np); if((shp->fdstatus[fd]&IOTTY) && !keytrap) - tty_cooked(fd); + tty_cooked(sffileno(iop)); if(flags&S_FLAG) hist_flush(shp->gd->hist_ptr); if(jmpval > 1) --- src/cmd/ksh93/bltins/trap.c +++ src/cmd/ksh93/bltins/trap.c 2013-10-25 13:26:45.740248120 +0000 @@ -116,8 +116,7 @@ int b_trap(int argc,char *argv[],Shbltin continue; } shp->st.otrap = 0; - if(shp->st.trap[sig]) - free(shp->st.trap[sig]); + arg = shp->st.trap[sig]; shp->st.trap[sig] = 0; if(!clear && *action) shp->st.trap[sig] = strdup(action); @@ -128,6 +127,8 @@ int b_trap(int argc,char *argv[],Shbltin else shp->trapnote = 0; } + if(arg) + free(arg); continue; } if(sig>shp->gd->sigmax) --- src/cmd/ksh93/bltins/typeset.c +++ src/cmd/ksh93/bltins/typeset.c 2013-10-25 13:26:45.741248028 +0000 @@ -676,7 +676,7 @@ static int setall(char **argv,regist } if(!nv_isarray(np) && !strchr(name,'=') && !(shp->envlist && nv_onlist(shp->envlist,name))) { - if(comvar || (shp->last_root==shp->var_tree && (tp->tp || (!shp->st.real_fun && (nvflags&NV_STATIC)) || (!(flag&(NV_EXPORT|NV_RDONLY)) && nv_isattr(np,(NV_EXPORT|NV_IMPORT))==(NV_EXPORT|NV_IMPORT))))) + if(comvar || (shp->last_root==shp->var_tree && ((tp->tp && tp->tp!=nv_type(np)) || (!shp->st.real_fun && (nvflags&NV_STATIC)) || (!(flag&(NV_EXPORT|NV_RDONLY)) && nv_isattr(np,(NV_EXPORT|NV_IMPORT))==(NV_EXPORT|NV_IMPORT))))) { if((flag&(NV_HOST|NV_INTEGER))!=NV_HOST) _nv_unset(np,0); --- src/cmd/ksh93/include/defs.h +++ src/cmd/ksh93/include/defs.h 2013-10-25 13:26:45.741248028 +0000 @@ -182,6 +182,8 @@ struct shared pid_t spid; /* subshell process id */ \ pid_t pipepid; \ pid_t outpipepid; \ + pid_t *procsub; /* pids for >() argument */ \ + int nprocsub; /* number of pids in procsub */ \ int topfd; \ int savesig; \ unsigned char *sigflag; /* pointer to signal states */ \ @@ -243,7 +245,7 @@ struct shared char *cur_line; \ int offsets[10]; \ Sfio_t **sftable; \ - unsigned char *fdstatus; \ + unsigned int *fdstatus; \ const char *pwd; \ void *jmpbuffer; \ void *mktype; \ --- src/cmd/ksh93/include/io.h +++ src/cmd/ksh93/include/io.h 2013-10-25 13:26:45.741248028 +0000 @@ -81,6 +81,7 @@ extern void sh_iosave(Shell_t *, int,in extern int sh_iovalidfd(Shell_t*, int); extern int sh_inuse(Shell_t*, int); extern void sh_iounsave(Shell_t*); +extern void sh_iounpipe(Shell_t*); extern int sh_chkopen(const char*); extern int sh_ioaccess(int,int); extern int sh_devtofd(const char*); --- src/cmd/ksh93/include/jobs.h +++ src/cmd/ksh93/include/jobs.h 2013-10-25 13:26:45.741248028 +0000 @@ -103,6 +103,7 @@ struct jobs pid_t mypid; /* process id of shell */ pid_t mypgid; /* process group id of shell */ pid_t mytgid; /* terminal group id of shell */ + pid_t lastpost; /* last job posted */ int curjobid; unsigned int in_critical; /* >0 => in critical region */ int savesig; /* active signal */ @@ -152,11 +153,11 @@ extern struct jobs job; #define job_lock() (job.in_critical++) #define job_unlock() \ do { \ - int sig; \ - if (!--job.in_critical && (sig = job.savesig)) \ + int _sig; \ + if (!--job.in_critical && (_sig = job.savesig)) \ { \ if (!job.in_critical++ && !vmbusy()) \ - job_reap(sig); \ + job_reap(_sig); \ job.in_critical--; \ } \ } while(0) --- src/cmd/ksh93/sh/args.c +++ src/cmd/ksh93/sh/args.c 2013-10-25 13:26:45.741248028 +0000 @@ -32,6 +32,7 @@ #include "builtins.h" #include "terminal.h" #include "edit.h" +#include "jobs.h" #include "FEATURE/poll" #if SHOPT_KIA # include "shlex.h" @@ -57,6 +58,7 @@ #define PRINT 2 static char *null; +static pid_t *procsub; /* The following order is determined by sh_optset */ static const char optksh[] = PFSHOPT BASHOPT "DircabefhkmnpstuvxBCGEl" HFLAG; @@ -717,6 +719,7 @@ char **sh_argbuild(Shell_t *shp,int *nar return(ap->dolval+ap->dolbot); } shp->lastpath = 0; + procsub = shp->procsub; *nargs = 0; if(ac) { @@ -737,6 +740,8 @@ char **sh_argbuild(Shell_t *shp,int *nar } argp = arghead; } + if(procsub) + *procsub = 0; } { register char **comargn; @@ -782,8 +787,9 @@ struct argnod *sh_argprocsub(Shell_t *sh { /* argument of the form <(cmd) or >(cmd) */ register struct argnod *ap; - int monitor, fd, pv[3]; + int nn, monitor, fd, pv[3]; int subshell = shp->subshell; + pid_t pid0; ap = (struct argnod*)stkseek(shp->stk,ARGVAL); ap->argflag |= ARG_MAKE; ap->argflag &= ~ARG_RAW; @@ -794,18 +800,33 @@ struct argnod *sh_argprocsub(Shell_t *sh sfwrite(shp->stk,e_devfdNN,8); pv[2] = 0; sh_pipe(pv); + sfputr(shp->stk,fmtbase((long)pv[fd],10,0),0); #else pv[0] = -1; shp->fifo = pathtemp(0,0,0,"ksh.fifo",0); mkfifo(shp->fifo,S_IRUSR|S_IWUSR); sfputr(shp->stk,shp->fifo,0); #endif /* SHOPT_DEVFD */ - sfputr(shp->stk,fmtbase((long)pv[fd],10,0),0); ap = (struct argnod*)stkfreeze(shp->stk,0); shp->inpipe = shp->outpipe = 0; if(monitor = (sh_isstate(SH_MONITOR)!=0)) sh_offstate(SH_MONITOR); shp->subshell = 0; +#if SHOPT_DEVFD + fcntl(pv[fd],F_SETFD,0); + shp->fdstatus[pv[fd]] &= ~IOCLEX; +#endif /* SHOPT_DEVFD */ + pid0=shp->procsub?*shp->procsub:0; + if(!shp->procsub) + shp->procsub = procsub = newof(0,pid_t,shp->nprocsub=4,0); + else if((nn=procsub-shp->procsub) >= shp->nprocsub) + { + shp->nprocsub += 3; + shp->procsub = newof(shp->procsub,pid_t,shp->nprocsub,0); + procsub = shp->procsub + nn; + } + if(pid0) + *shp->procsub = 0; if(fd) { shp->inpipe = pv; @@ -816,11 +837,14 @@ struct argnod *sh_argprocsub(Shell_t *sh shp->outpipe = pv; sh_exec((Shnode_t*)argp->argchn.ap,(int)sh_isstate(SH_ERREXIT)); } + if(pid0) + *shp->procsub = pid0; + *procsub++ = job.lastpost; shp->subshell = subshell; if(monitor) sh_onstate(SH_MONITOR); #if SHOPT_DEVFD - close(pv[1-fd]); + sh_close(pv[1-fd]); sh_iosave(shp,-pv[fd], shp->topfd, (char*)0); #else free(shp->fifo); --- src/cmd/ksh93/sh/array.c +++ src/cmd/ksh93/sh/array.c 2013-10-25 13:26:45.742247936 +0000 @@ -438,10 +438,13 @@ int nv_arraysettype(Namval_t *np, Namval nv_offattr(nq,NV_RDONLY); if(!nv_isattr(tp,NV_BINARY)) { + char *prefix = shp->prefix; if(xtrace) sh_offoption(SH_XTRACE); ap->nelem &= ~ARRAY_SCAN; + shp->prefix = 0; sh_eval(sh_sfeval(av),0); + shp->prefix = prefix; ap->nelem |= ARRAY_SCAN; free((void*)av[0]); if(xtrace) @@ -773,7 +776,10 @@ static void array_putval(Namval_t *np, c free((void*)aq->xp); } if((nfp = nv_disc(np,(Namfun_t*)ap,NV_POP)) && !(nfp->nofree&1)) + { + ap = 0; free((void*)nfp); + } if(!nv_isnull(np)) { if(!np->nvfun) @@ -785,7 +791,7 @@ static void array_putval(Namval_t *np, c if(np->nvalue.cp==Empty) np->nvalue.cp = 0; } - if(!string && (flags&NV_TYPE)) + if(!string && (flags&NV_TYPE) && ap) array_unscope(np,ap); } --- src/cmd/ksh93/sh/fault.c +++ src/cmd/ksh93/sh/fault.c 2013-10-25 13:26:45.742247936 +0000 @@ -518,6 +518,8 @@ void sh_exit(register int xno) shp->exitval |= (sig=shp->lastsig); if(pp && pp->mode>1) cursig = -1; + if(shp->procsub) + *shp->procsub = 0; #ifdef SIGTSTP if(shp->trapnote&SH_SIGTSTP) { --- src/cmd/ksh93/sh/io.c +++ src/cmd/ksh93/sh/io.c 2013-10-25 13:26:45.743247844 +0000 @@ -407,7 +407,7 @@ int sh_iovalidfd(Shell_t *shp, int fd) { Sfio_t **sftable = shp->sftable; int max,n, **fdptrs = shp->fdptrs; - unsigned char *fdstatus = shp->fdstatus; + unsigned int *fdstatus = shp->fdstatus; if(fd<0) return(0); if(fd < shp->gd->lim.open_max) @@ -422,13 +422,13 @@ int sh_iovalidfd(Shell_t *shp, int fd) if(n > max) n = max; max = shp->gd->lim.open_max; - shp->sftable = (Sfio_t**)calloc((n+1)*(sizeof(int*)+sizeof(Sfio_t*)+1),1); + shp->sftable = (Sfio_t**)calloc((n+1)*(sizeof(int*)+sizeof(Sfio_t*)+sizeof(*fdstatus)),1); if(max) memcpy(shp->sftable,sftable,max*sizeof(Sfio_t*)); shp->fdptrs = (int**)(&shp->sftable[n]); if(max) memcpy(shp->fdptrs,fdptrs,max*sizeof(int*)); - shp->fdstatus = (unsigned char*)(&shp->fdptrs[n]); + shp->fdstatus = (unsigned int*)(&shp->fdptrs[n]); if(max) memcpy(shp->fdstatus,fdstatus,max); if(sftable) @@ -686,7 +686,10 @@ int sh_close(register int fd) register Sfio_t *sp; register int r = 0; if(fd<0) + { + errno = EBADF; return(-1); + } if(fd >= shp->gd->lim.open_max) sh_iovalidfd(shp,fd); if(!(sp=shp->sftable[fd]) || sfclose(sp) < 0) @@ -699,13 +702,15 @@ int sh_close(register int fd) } if(fd>2) shp->sftable[fd] = 0; + if(r = (shp->fdstatus[fd]>>8)) + close(r); shp->fdstatus[fd] = IOCLOSE; if(shp->fdptrs[fd]) *shp->fdptrs[fd] = -1; shp->fdptrs[fd] = 0; if(fd < 10) shp->inuse_bits &= ~(1<<fd); - return(r); + return(0); } #ifdef O_SERVICE @@ -873,9 +878,9 @@ int sh_iomovefd(register int fdold) register int fdnew; if(fdold >= shp->gd->lim.open_max) sh_iovalidfd(shp,fdold); - if(fdold<0 || fdold>2) + if(fdold<0 || fdold>9) return(fdold); - fdnew = sh_iomovefd(dup(fdold)); + fdnew = sh_iomovefd(sh_fcntl(fdold,F_DUPFD,10)); shp->fdstatus[fdnew] = (shp->fdstatus[fdold]&~IOCLEX); close(fdold); shp->fdstatus[fdold] = IOCLOSE; @@ -964,7 +969,7 @@ int sh_pipe(register int pv[]) while ((r=bind (pv[out], (struct sockaddr *) &sin, slen)) == -1 && errno==EADDRINUSE); if(r<0 || listen(pv[out],5) <0) { - close(pv[out]); + sh_close(pv[out]); errormsg(SH_DICT,ERROR_system(1),e_pipe); } fcntl(pv[out],F_SETFD,FD_CLOEXEC); @@ -1079,7 +1084,7 @@ static char *io_usename(char *name, int if((fd = sh_open(name,O_RDONLY,0)) >= 0) { r = fstat(fd,&statb); - close(fd); + sh_close(fd); if(r) return(0); if(!S_ISREG(statb.st_mode)) @@ -1144,6 +1149,7 @@ int sh_redirect(Shell_t *shp,struct iono char *tname=0, *after="", *trace = shp->st.trap[SH_DEBUGTRAP]; Namval_t *np=0; int isstring = shp->subshell?(sfset(sfstdout,0,0)&SF_STRING):0; + Sfio_t *sp; if(flag==2) clexec = 1; @@ -1245,16 +1251,35 @@ int sh_redirect(Shell_t *shp,struct iono { int dupfd,toclose= -1; io_op[2] = '&'; - if((fd=fname[0])>='0' && fd<='9') + if((fd=fname[0])>='0' && (fd=='{' || fd<='9')) { char *number = fname; - dupfd = strtol(fname,&number,10); + int f; + if(fd=='{') + { + np = 0; + if(number=strchr(fname,'}')) + { + *number = 0; + np = nv_open(fname+1,shp->var_tree,NV_NOASSIGN|NV_VARNAME|NV_NOFAIL); + *number++ = '}'; + } + if(!np) + { + message = e_file; + goto fail; + } + dupfd = nv_getnum(np); + np = 0; + } + else + dupfd = strtol(fname,&number,10); if(*number=='-') { toclose = dupfd; number++; } - if(*number || dupfd > IOUFD) + if(*number) { message = e_file; goto fail; @@ -1267,8 +1292,23 @@ int sh_redirect(Shell_t *shp,struct iono shp->subdup |= 1<<fn; dupfd = sffileno(sfstdout); } - else if(shp->sftable[dupfd]) + else if(sp=shp->sftable[dupfd]) + { + char *tmpname; + if((sfset(sp,0,0)&SF_STRING) && (tmpname = pathtemp(NiL ,NiL,NiL,"sf",&f))) + { + Sfoff_t last = sfseek(sp,(Sfoff_t)0,SEEK_END); + + unlink(tmpname); + free(tmpname); + write(f, sp->_data, (size_t)last); + lseek(f,(Sfoff_t)0,SEEK_SET); + + sfclose(sp); + sp = sfnew(sp,NULL,-1,f,SF_READ); + } sfsync(shp->sftable[dupfd]); + } if(dupfd!=1 && fn < 10) shp->subdup &= ~(1<<fn); } @@ -1293,11 +1333,25 @@ int sh_redirect(Shell_t *shp,struct iono } if(flag==SH_SHOWME) goto traceit; - if((fd=sh_fcntl(dupfd,F_DUPFD,3))<0) + if((sp=shp->sftable[dupfd]) && sfset(sp,0,0)&SF_STRING) + { + char *cp; + Sfoff_t off = sftell(sp); + sfset(sp,SF_MALLOC,0); + cp = sfsetbuf(sp,(char*)sp,0); + sfset(sp,SF_MALLOC,1); + r = (int)(sfseek(sp,(Sfoff_t)0,SEEK_END)-off); + sfseek(sp,off,SEEK_SET); + fd = shp->gd->lim.open_max-1; + shp->sftable[fd] = sfnew(NIL(Sfio_t*),cp,r,-1,SF_READ|SF_STRING); + shp->fdstatus[fd] = shp->fdstatus[dupfd]; + } + else if((fd=sh_fcntl(dupfd,F_DUPFD,3))<0) goto fail; if(fd>= shp->gd->lim.open_max) sh_iovalidfd(shp,fd); - sh_iocheckfd(shp,dupfd); + if(!shp->sftable[dupfd]) + sh_iocheckfd(shp,dupfd); shp->fdstatus[fd] = (shp->fdstatus[dupfd]&~IOCLEX); if(toclose<0 && shp->fdstatus[fd]&IOREAD) shp->fdstatus[fd] |= IODUP; @@ -1496,7 +1550,8 @@ int sh_redirect(Shell_t *shp,struct iono if(fn>9 || !(shp->inuse_bits&(1<<fn))) io_preserve(shp,shp->sftable[fn],fn); } - sh_close(fn); + if(!(iof&IODOC)) + sh_close(fn); } if(flag==3) return(fd); @@ -1531,7 +1586,24 @@ int sh_redirect(Shell_t *shp,struct iono shp->inuse_bits |= (1<<fn); } } - if(fd >2 && clexec) + else if(iof&IODOC) + { + Sfio_t *sp = &_Sfstderr; + if(fn==1) + sp = &_Sfstdout; + else if(fn==0) + sp = &_Sfstdin; + shp->sftable[fn] = shp->sftable[-1]; + shp->fdstatus[fn] = shp->fdstatus[-1]; + if(fn <=2) + { + sfswap(shp->sftable[fn],sp); + shp->sftable[fn] = sp; + } + shp->fdptrs[fn] = 0; + shp->sftable[-1] = 0; + } + if(fd >2 && clexec && !(shp->fdstatus[fd]&IOCLEX)) { fcntl(fd,F_SETFD,FD_CLOEXEC); shp->fdstatus[fd] |= IOCLEX; @@ -1619,12 +1691,12 @@ static int io_heredoc(Shell_t *shp,regis sfclose(infile); } } + if(traceon && !(iop->iofile&IOSTRG)) + sfputr(sfstderr,iop->ioname,'\n'); /* close stream outfile, but save file descriptor */ fd = sffileno(outfile); sfsetfd(outfile,-1); sfclose(outfile); - if(traceon && !(iop->iofile&IOSTRG)) - sfputr(sfstderr,iop->ioname,'\n'); lseek(fd,(off_t)0,SEEK_SET); shp->fdstatus[fd] = IOREAD; return(fd); @@ -2059,9 +2131,11 @@ int sh_iocheckfd(Shell_t *shp, register if(!(n&(IOSEEK|IONOSEEK))) { struct stat statb; + Sfio_t *sp = shp->sftable[fd]; /* /dev/null check is a workaround for select bug */ static ino_t null_ino; static dev_t null_dev; + shp->sftable[fd] = 0; if(null_ino==0 && stat(e_devnull,&statb) >=0) { null_ino = statb.st_ino; @@ -2097,6 +2171,7 @@ int sh_iocheckfd(Shell_t *shp, register n |= IONOSEEK; else n |= IOSEEK; + shp->sftable[fd] = sp; } if(fd==0) n &= ~IOWRITE; @@ -2143,6 +2218,7 @@ static int io_prompt(Shell_t *shp,Sfio_t } #endif /* TIOCLBIC */ cp = sh_mactry(shp,nv_getval(sh_scoped(shp,PS1NOD))); + shp->exitval = 0; for(;c= *cp;cp++) { if(c==HIST_CHAR) @@ -2494,12 +2570,14 @@ skip: */ ssize_t sh_read(register int fd, void* buff, size_t n) { + int r,err=errno; Shell_t *shp = sh_getinterp(); register Sfio_t *sp; if(sp=shp->sftable[fd]) return(sfread(sp,buff,n)); - else - return(read(fd,buff,n)); + while ((r=read(fd,buff,n))<0 && errno==EINTR) + errno = err; + return(r); } #undef write @@ -2508,12 +2586,14 @@ ssize_t sh_read(register int fd, void* b */ ssize_t sh_write(register int fd, const void* buff, size_t n) { + int r,err=errno; Shell_t *shp = sh_getinterp(); register Sfio_t *sp; if(sp=shp->sftable[fd]) return(sfwrite(sp,buff,n)); - else - return(write(fd,buff,n)); + while ((r=write(fd,buff,n))<0 && errno==EINTR) + errno = err; + return(r); } #undef lseek --- src/cmd/ksh93/sh/jobs.c +++ src/cmd/ksh93/sh/jobs.c 2013-10-25 13:26:45.744247751 +0000 @@ -424,6 +424,8 @@ int job_reap(register int sig) } if(pid<=0) break; + if(pid==shp->spid) + shp->spid = 0; if(wstat==0) job_chksave(pid); flags |= WNOHANG; @@ -520,7 +522,12 @@ int job_reap(register int sig) { shp->sigflag[SIGCHLD] |= SH_SIGTRAP; if(sig==0) + { + int c = job.in_critical; + job.in_critical = 0; job_chldtrap(shp,shp->st.trapcom[SIGCHLD],0); + job.in_critical = c; + } else shp->trapnote |= SH_SIGTRAP; } @@ -646,7 +653,7 @@ void job_init(Shell_t *shp, int lflag) return; while(close(JOBTTY)<0 && errno==EINTR) errno = err; - if((fd = open(ttynam,O_RDWR)) <0) + if((fd = sh_open(ttynam,O_RDWR)) <0) return; if(fd!=JOBTTY) sh_iorenumber(shp,fd,JOBTTY); @@ -1313,6 +1320,7 @@ int job_post(Shell_t *shp,pid_t pid, pid return(0); } job_lock(); + job.lastpost = pid; #ifdef SHOPT_BGX if(join==1) { @@ -1635,9 +1643,21 @@ int job_wait(register pid_t pid) if(intr && shp->trapnote) shp->exitval = 1; pwfg = 0; - job_unlock(); if(pid==1) + { + if(nochild) + { + for(pw=job.pwlist; pw; pw=px) + { + px = pw->p_nxtjob; + pw->p_flag |= P_DONE; + job_unpost(pw,1); + } + } + job_unlock(); return(nochild); + } + job_unlock(); exitset(); if(pid==0) goto done; @@ -1800,7 +1820,7 @@ static struct process *job_unpost(regist #endif /* DEBUG */ pwtop = pw = job_byjid((int)pwtop->p_job); #ifdef SHOPT_BGX - if(pw->p_flag&P_BG) + if(!pw || pw->p_flag&P_BG) return(pw); #endif /* SHOPT_BGX */ for(; pw && (pw->p_flag&P_DONE)&&(notify||!(pw->p_flag&P_NOTIFY)||pw->p_env); pw=pw->p_nxtproc); --- src/cmd/ksh93/sh/lex.c +++ src/cmd/ksh93/sh/lex.c 2013-10-25 13:26:45.744247751 +0000 @@ -556,7 +556,7 @@ int sh_lex(Lex_t* lp) lp->lexd.docword=1; else if(n==LPAREN) { - if(lp->lex.intest) + if(lp->lex.intest || lp->comp_assign) return(c); lp->lexd.nest=1; lp->lastline = shp->inlineno; @@ -2468,7 +2468,7 @@ static int alias_exceptf(Sfio_t *iop,int if(dp!=handle) sfdisc(iop,dp); } - else if(type==SF_FINAL) + else if(type==SF_DPOP || type==SF_FINAL) free((void*)ap); goto done; } --- src/cmd/ksh93/sh/macro.c +++ src/cmd/ksh93/sh/macro.c 2013-10-25 13:26:45.745247659 +0000 @@ -392,7 +392,7 @@ void sh_machere(Shell_t *shp,Sfio_t *inf break; } case S_PAR: - comsubst(mp,(Shnode_t*)0,1); + comsubst(mp,(Shnode_t*)0,3); break; case S_EOF: if((c=fcfill()) > 0) @@ -447,6 +447,7 @@ static void copyto(register Mac_t *mp,in int ansi_c = 0; int paren = 0; int ere = 0; + int dotdot = 0; int brace = 0; Sfio_t *sp = mp->sp; Stk_t *stkp = mp->shp->stk; @@ -846,7 +847,7 @@ e_badsubscript,*cp); { sfwrite(stkp,first,c); sfputc(stkp,0); - mp->dotdot = stktell(stkp); + dotdot = stktell(stkp); cp = first = fcseek(c+2); } break; @@ -854,6 +855,7 @@ e_badsubscript,*cp); } done: mp->sp = sp; + mp->dotdot = dotdot; mp->quote = oldquote; } @@ -1010,7 +1012,6 @@ static int subcopy(Mac_t *mp, int flag) mp->pattern = flag?4:0; mp->arrayok=1; mp->subcopy++; - mp->dotdot = 0; copyto(mp,RBRACT,0); mp->subcopy = 0; mp->pattern = xpattern; @@ -1099,6 +1100,7 @@ static int varsub(Mac_t *mp) Stk_t *stkp = mp->shp->stk; retry1: mp->zeros = 0; + mp->dotdot = 0; idbuff[0] = 0; idbuff[1] = 0; c = fcmbget(&LEN); @@ -1166,7 +1168,7 @@ retry1: case S_PAR: if(type) goto nosub; - comsubst(mp,(Shnode_t*)0,1); + comsubst(mp,(Shnode_t*)0,3); return(1); case S_DIG: var = 0; @@ -1349,7 +1351,7 @@ retry1: ap = nv_arrayptr(np=nq); if(ap) { - nv_putsub(np,v,ARRAY_SCAN); + np = nv_putsub(np,v,ARRAY_SCAN); v = stkptr(stkp,mp->dotdot); dolmax =1; if(array_assoc(ap)) @@ -2077,6 +2079,18 @@ static void comsubst(Mac_t *mp,register fcrestore(&save); return; } + else if(type==2 && t && (t->tre.tretyp&COMMSK)==0 && t->com.comarg) + { + Namval_t *np; + str = NULL; + if(!(t->com.comtyp&COMSCAN)) + { + struct dolnod *ap = (struct dolnod*)t->com.comarg; + str = ap->dolval[ap->dolbot]; + } + else if(t->com.comarg->argflag&ARG_RAW) + str = t->com.comarg->argval; + } } else { @@ -2158,10 +2172,9 @@ static void comsubst(Mac_t *mp,register mp->ifsp = nv_getval(np); stkset(stkp,savptr,savtop); newlines = 0; - sfsetbuf(sp,(void*)sp,0); - bufsize = sfvalue(sp); /* read command substitution output and put on stack or here-doc */ sfpool(sp, NIL(Sfio_t*), SF_WRITE); + sfset(sp, SF_WRITE|SF_PUBLIC|SF_SHARE,0); sh_offstate(SH_INTERACTIVE); if((foff = sfseek(sp,(Sfoff_t)0,SEEK_END)) > 0) { @@ -2170,6 +2183,8 @@ static void comsubst(Mac_t *mp,register stkseek(stkp,soff+foff+64); stkseek(stkp,soff); } + if(foff > IOBSIZE) + sfsetbuf(sp,NULL,SF_UNBOUND); while((str=(char*)sfreserve(sp,SF_UNBOUND,0)) && (c=bufsize=sfvalue(sp))>0) { #if SHOPT_CRNL @@ -2291,6 +2306,13 @@ static void mac_copy(register Mac_t *mp, Stk_t *stkp=mp->shp->stk; int oldpat = mp->pattern; nopat = (mp->quote||(mp->assign==1)||mp->arith); + if(size>512) + { + /* pre-allocate to improve performance */ + c = stktell(stkp); + stkseek(stkp,c+size+(size>>4)); + stkseek(stkp,c); + } if(mp->zeros) { /* prevent leading 0's from becomming octal constants */ --- src/cmd/ksh93/sh/main.c +++ src/cmd/ksh93/sh/main.c 2013-10-25 13:26:45.745247659 +0000 @@ -309,7 +309,7 @@ int sh_main(int ac, char *av[], Shinit_f int isdir = 0; if((fdin=sh_open(name,O_RDONLY,0))>=0 &&(fstat(fdin,&statb)<0 || S_ISDIR(statb.st_mode))) { - close(fdin); + sh_close(fdin); isdir = 1; fdin = -1; } --- src/cmd/ksh93/sh/name.c +++ src/cmd/ksh93/sh/name.c 2013-10-25 13:26:45.746247567 +0000 @@ -421,6 +421,8 @@ void nv_setlist(register struct argnod * if(array&NV_ARRAY) { nv_setarray(np,nv_associative); + if(typ) + nv_settype(np,typ,0); } else { @@ -436,7 +438,7 @@ void nv_setlist(register struct argnod * #endif /* SHOPT_TYPEDEF */ } /* check for array assignment */ - if(tp->tre.tretyp!=TLST && tp->com.comarg && !tp->com.comset && ((array&NV_IARRAY) || !((mp=tp->com.comnamp) && nv_isattr(mp,BLT_DCL)))) + if((tp->tre.tretyp&COMMSK)==TCOM && tp->com.comarg && !tp->com.comset && ((array&NV_IARRAY) || !((mp=tp->com.comnamp) && nv_isattr(mp,BLT_DCL)))) { int argc; Dt_t *last_root = shp->last_root; @@ -509,6 +511,7 @@ void nv_setlist(register struct argnod * if(!(array&NV_IARRAY) && !(tp->com.comset->argflag&ARG_MESSAGE)) nv_setarray(np,nv_associative); } + shp->typeinit = 0; nv_setlist(tp->com.comset,flags&~NV_STATIC,0); shp->prefix = prefix; if(tp->com.comset->argval[1]!='[') @@ -1292,8 +1295,9 @@ void nv_delete(Namval_t* np, Dt_t *root, if(rp->sub) free(rp->sub); rp->sub = 0; - rp = dtdelete(Refdict,(void*)rp); - rp->np = &NullNode; + rp = dtremove(Refdict,(void*)rp); + if(rp) + rp->np = &NullNode; } } } @@ -1345,10 +1349,12 @@ Namval_t *nv_open(const char *name, Dt_t struct Cache_entry *xp; #endif - sh_stats(STAT_NVOPEN); memset(&fun,0,sizeof(fun)); shp->openmatch = 0; shp->last_table = 0; + if(!name) + return(0); + sh_stats(STAT_NVOPEN); if(!root) root = shp->var_tree; shp->last_root = root; @@ -2470,6 +2476,8 @@ static void table_unset(Shell_t *shp, re } } npnext = (Namval_t*)dtnext(root,np); + if(nv_arrayptr(np)) + nv_putsub(np,NIL(char*),ARRAY_SCAN); _nv_unset(np,flags); nv_delete(np,root,0); } @@ -2552,9 +2560,11 @@ void _nv_unset(register Namval_t *np,int /* This function contains disc */ if(!nv_local) { + Dt_t *last_root = shp->last_root; nv_local=1; nv_putv(np,NIL(char*),flags,np->nvfun); nv_local=0; + shp->last_root = last_root; return; } /* called from disc, assign the actual value */ @@ -2575,7 +2585,7 @@ void _nv_unset(register Namval_t *np,int { if(np->nvalue.nrp->root) - dtdelete(Refdict,(void*)np->nvalue.nrp); + dtremove(Refdict,(void*)np->nvalue.nrp); if(np->nvalue.nrp->sub) free(np->nvalue.nrp->sub); free((void*)np->nvalue.nrp); @@ -3577,7 +3587,7 @@ void nv_unref(register Namval_t *np) { if(np->nvalue.nrp->sub) free(np->nvalue.nrp->sub); - dtdelete(Refdict,(void*)np->nvalue.nrp); + dtremove(Refdict,(void*)np->nvalue.nrp); } free((void*)np->nvalue.nrp); np->nvalue.cp = strdup(nv_name(nq)); --- src/cmd/ksh93/sh/nvtree.c +++ src/cmd/ksh93/sh/nvtree.c 2013-10-25 13:26:45.747247475 +0000 @@ -144,8 +144,9 @@ static Namfun_t *nextdisc(Namval_t *np) void *nv_diropen(Namval_t *np,const char *name) { - char *next,*last; - int c,len=strlen(name); + const char *last; + char *next; + size_t c=0,len=strlen(name); struct nvdir *save, *dp = new_of(struct nvdir,len+1); Namval_t *nq=0,fake; Namfun_t *nfp=0; @@ -1031,9 +1032,18 @@ static char *walk_tree(register Namval_t shp->var_tree = dp; if(nq && mq) { + register struct nvdir *odir=0,*dp = (struct nvdir*)dir; + if(dp->table==nq) + { + dp = dp->prev; + odir = dir; + dir = dp; + } nv_clone(nq,mq,flags|NV_RAW); if(flags&NV_MOVE) nv_delete(nq,walk.root,0); + if(odir) + free(odir); } continue; } --- src/cmd/ksh93/sh/nvtype.c +++ src/cmd/ksh93/sh/nvtype.c 2013-10-25 13:26:45.747247475 +0000 @@ -484,7 +484,10 @@ static Namfun_t *clone_type(Namval_t* np } } if(nv_isattr(mp,NV_BINARY)) + { mp->nvalue.cp = dp->data; + nv_onattr(mp,NV_NOFREE); + } if(pp->strsize<0) dp->strsize = -pp->strsize; return(&dp->fun); --- src/cmd/ksh93/sh/parse.c +++ src/cmd/ksh93/sh/parse.c 2013-10-25 13:26:45.748247383 +0000 @@ -1722,6 +1722,7 @@ static struct ionod *inout(Lex_t *lexp,s lexp->digits=0; iop=(struct ionod*) stkalloc(stkp,sizeof(struct ionod)); iop->iodelim = 0; + iop->iosize = 0; if(token=sh_lex(lexp)) { if(token==RPAREN && (iof&IOLSEEK) && lexp->comsub) --- src/cmd/ksh93/sh/path.c +++ src/cmd/ksh93/sh/path.c 2013-10-25 13:27:42.151044203 +0000 @@ -333,7 +333,8 @@ static char *path_lib(Shell_t *shp,Pathc char save[8]; for( ;pp; pp=pp->next) { - path_checkdup(shp,pp); + if(!pp->dev && !pp->ino) + path_checkdup(shp,pp); if(pp->ino==statb.st_ino && pp->dev==statb.st_dev && pp->mtime==statb.st_mtime) return(pp->lib); } @@ -613,6 +614,7 @@ static void funload(Shell_t *shp,int fno } while((rp=dtnext(shp->fpathdict,rp)) && strcmp(pname,rp->fname)==0); sh_close(fno); + free((void*)pname); return; } sh_onstate(SH_NOLOG); @@ -876,7 +878,7 @@ Pathcomp_t *path_absolute(Shell_t *shp,r { nv_onattr(nv_open(name,sh_subfuntree(shp,1),NV_NOARRAY|NV_IDENT|NV_NOSCOPE),NV_LTOU|NV_FUNCTION); funload(shp,f,name); - close(f); + sh_close(f); f = -1; return(0); } @@ -1408,7 +1410,7 @@ static void exscript(Shell_t *shp,regist sabuf.ac_etime = compress( (time_t)(after-before)); fd = open( SHACCT , O_WRONLY | O_APPEND | O_CREAT,RW_ALL); write(fd, (const char*)&sabuf, sizeof( sabuf )); - close( fd); + sh_close( fd); } } --- src/cmd/ksh93/sh/streval.c +++ src/cmd/ksh93/sh/streval.c 2013-10-25 13:26:45.749247290 +0000 @@ -165,14 +165,11 @@ Sfdouble_t arith_exec(Arith_t *ep) Math_f fun; struct lval node; Shell_t *shp = ep->shp; + memset(&node,0,sizeof(node)); node.shp = shp; node.emode = ep->emode; node.expr = ep->expr; node.elen = ep->elen; - node.value = 0; - node.nosub = 0; - node.ptr = 0; - node.eflag = 0; if(level++ >=MAXLEVEL) { arith_error(e_recursive,ep->expr,ep->emode); --- src/cmd/ksh93/sh/subshell.c +++ src/cmd/ksh93/sh/subshell.c 2013-10-25 13:26:45.749247290 +0000 @@ -122,23 +122,26 @@ void sh_subtmpfile(Shell_t *shp) register struct checkpt *pp = (struct checkpt*)shp->jmplist; register struct subshell *sp = subshell_data->pipe; /* save file descriptor 1 if open */ - if((sp->tmpfd = fd = fcntl(1,F_DUPFD,10)) >= 0) + if((sp->tmpfd = fd = sh_fcntl(1,F_DUPFD,10)) >= 0) { + int err=errno; fcntl(fd,F_SETFD,FD_CLOEXEC); shp->fdstatus[fd] = shp->fdstatus[1]|IOCLEX; - close(1); + while(close(1)<0 && errno==EINTR) + errno = err; } else if(errno!=EBADF) errormsg(SH_DICT,ERROR_system(1),e_toomany); /* popping a discipline forces a /tmp file create */ - sfdisc(sfstdout,SF_POPDISC); + if(shp->comsub != 1) + sfdisc(sfstdout,SF_POPDISC); if((fd=sffileno(sfstdout))<0) { /* unable to create the /tmp file so use a pipe */ int fds[3]; Sfoff_t off; fds[2] = 0; - sh_pipe(fds); + sh_rpipe(fds); sp->pipefd = fds[0]; sh_fcntl(sp->pipefd,F_SETFD,FD_CLOEXEC); /* write the data to the pipe */ @@ -180,7 +183,7 @@ void sh_subfork(void) { register struct subshell *sp = subshell_data; Shell_t *shp = sp->shp; - int curenv = shp->curenv; + int curenv = shp->curenv, comsub=shp->comsub; pid_t pid; char *trap = shp->st.trapcom[0]; if(trap) @@ -204,6 +207,7 @@ void sh_subfork(void) { /* this is the child part of the fork */ /* setting subpid to 1 causes subshell to exit when reached */ + shp->cpid = 0; sh_onstate(SH_FORKED); sh_onstate(SH_NOLOG); sh_offoption(SH_MONITOR); @@ -213,7 +217,7 @@ void sh_subfork(void) shp->comsub = 0; SH_SUBSHELLNOD->nvalue.s = 0; sp->subpid=0; - shp->st.trapcom[0] = trap; + shp->st.trapcom[0] = (comsub==2?NULL:trap); shp->savesig = 0; } } @@ -337,7 +341,7 @@ static void nv_restore(struct subshell * } nv_setsize(mp,nv_size(np)); if(!(flags&NV_MINIMAL)) - mp->nvenv = np->nvenv; + mp->nvenv = nv_isnull(mp)?0:np->nvenv; if(!nofree) mp->nvfun = np->nvfun; if(nv_isattr(np,NV_IDENT)) @@ -494,6 +498,8 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ subenv = 0; } shp->curenv = ++subenv; + if(shp->curenv<=0) + shp->curenv = subenv = 1; savst = shp->st; sh_pushcontext(shp,&buff,SH_JMPSUB); subshell = shp->subshell+1; @@ -508,6 +514,7 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ sp->options = shp->options; sp->jobs = job_subsave(); sp->subdup = shp->subdup; + shp->subdup = 0; #if SHOPT_COSHELL sp->coshell = shp->coshell; shp->coshell = 0; @@ -530,7 +537,9 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ job.curpgid = 0; sp->subshare = shp->subshare; sp->comsub = shp->comsub; - shp->subshare = comsub==2 || (comsub==1 && sh_isoption(SH_SUBSHARE)); + shp->subshare = comsub==2 || (comsub && sh_isoption(SH_SUBSHARE)); + if(!shp->subshare) + sp->pathlist = path_dup((Pathcomp_t*)shp->pathlist); if(comsub) shp->comsub = comsub; if(!comsub || !shp->subshare) @@ -604,7 +613,7 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ sp->tmpfd = -1; sp->pipefd = -1; /* use sftmp() file for standard output */ - if(!(iop = sftmp(PIPE_BUF))) + if(!(iop = sftmp(comsub==1?PIPE_BUF:IOBSIZE))) { sfswap(sp->saveout,sfstdout); errormsg(SH_DICT,ERROR_system(1),e_tmpcreate); @@ -639,6 +648,7 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ sh_popcontext(shp,&buff); if(shp->subshell==0) /* must be child process */ { + shp->st.trapcom[0] = 0; subshell_data = sp->prev; if(jmpval==SH_JMPSCRIPT) siglongjmp(*shp->jmplist,jmpval); @@ -664,6 +674,19 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ } else { + if(comsub!=1 && shp->spid) + { + int c = shp->exitval; + job_wait(shp->spid); + if(shp->exitval==ERROR_NOENT) + { + shp->exitval = c; + shp->savexit=shp->exitval; + } + if(shp->pipepid==shp->spid) + shp->spid = 0; + shp->pipepid = 0; + } /* move tmp file to iop and restore sfstdout */ iop = sfswap(sfstdout,NIL(Sfio_t*)); if(!iop) @@ -690,19 +713,27 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ } sfset(iop,SF_READ,1); } - sfswap(sp->saveout,sfstdout); + if(sp->saveout) + sfswap(sp->saveout,sfstdout); + else + sfstdout = &_Sfstdout; /* check if standard output was preserved */ if(sp->tmpfd>=0) { - close(1); + int err=errno; + while(close(1)<0 && errno==EINTR) + errno = err; if (fcntl(sp->tmpfd,F_DUPFD,1) != 1) duped++; sh_close(sp->tmpfd); } shp->fdstatus[1] = sp->fdstatus; } - path_delete((Pathcomp_t*)shp->pathlist); - shp->pathlist = (void*)sp->pathlist; + if(!shp->subshare) + { + path_delete((Pathcomp_t*)shp->pathlist); + shp->pathlist = (void*)sp->pathlist; + } job_subrestore(sp->jobs); shp->jobenv = savecurenv; job.curpgid = savejobpgid; @@ -764,8 +795,6 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ } else free((void*)sp->pwd); - if(sp->pwdclose) - close(sp->pwdfd); if(sp->mask!=shp->mask) umask(shp->mask=sp->mask); if(shp->coutpipe!=sp->coutpipe) @@ -777,8 +806,9 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ shp->cpipe[1] = sp->cpipe; shp->coutpipe = sp->coutpipe; } + if(sp->pwdclose) + close(sp->pwdfd); shp->subshare = sp->subshare; - shp->comsub = sp->comsub; shp->subdup = sp->subdup; #if SHOPT_COSHELL shp->coshell = sp->coshell; @@ -808,7 +838,12 @@ Sfio_t *sh_subshell(Shell_t *shp,Shnode_ if(nsig>0) kill(getpid(),nsig); if(sp->subpid) + { job_wait(sp->subpid); + if(comsub>1) + sh_iounpipe(shp); + } + shp->comsub = sp->comsub; if(comsub && iop && sp->pipefd<0) sfseek(iop,(off_t)0,SEEK_SET); if(shp->trapnote) --- src/cmd/ksh93/sh/xec.c +++ src/cmd/ksh93/sh/xec.c 2013-10-25 13:29:00.390826813 +0000 @@ -102,26 +102,30 @@ struct funenv * temp file. */ static int subpipe[3],subdup,tsetio,usepipe; -static void iounpipe(Shell_t*); static int iousepipe(Shell_t *shp) { - int i; + int fd=sffileno(sfstdout),i,err=errno; if(usepipe) { usepipe++; - iounpipe(shp); + sh_iounpipe(shp); } if(sh_rpipe(subpipe) < 0) return(0); usepipe++; - fcntl(subpipe[0],F_SETFD,FD_CLOEXEC); - subpipe[2] = fcntl(1,F_DUPFD,10); - fcntl(subpipe[2],F_SETFD,FD_CLOEXEC); + if(shp->comsub!=1) + { + subpipe[2] = sh_fcntl(subpipe[1],F_DUPFD,10); + sh_close(subpipe[1]); + return(1); + } + subpipe[2] = sh_fcntl(fd,F_dupfd_cloexec,10); shp->fdstatus[subpipe[2]] = shp->fdstatus[1]; - close(1); - fcntl(subpipe[1],F_DUPFD,1); - shp->fdstatus[1] = shp->fdstatus[subpipe[1]]; + while(close(fd)<0 && errno==EINTR) + errno = err; + fcntl(subpipe[1],F_DUPFD,fd); + shp->fdstatus[1] = shp->fdstatus[subpipe[1]]&~IOCLEX; sh_close(subpipe[1]); if(subdup=shp->subdup) for(i=0; i < 10; i++) { @@ -135,14 +139,23 @@ static int iousepipe(Shell_t *shp) return(1); } -static void iounpipe(Shell_t *shp) +void sh_iounpipe(Shell_t *shp) { - int n; + int fd=sffileno(sfstdout),n,err=errno; char buff[SF_BUFSIZE]; - close(1); - fcntl(subpipe[2], F_DUPFD, 1); - shp->fdstatus[1] = shp->fdstatus[subpipe[2]]; + if(!usepipe) + return; --usepipe; + if(shp->comsub>1) + { + sh_close(subpipe[2]); + while(read(subpipe[0],buff,sizeof(buff))>0); + goto done; + } + while(close(fd)<0 && errno==EINTR) + errno = err; + fcntl(subpipe[2], F_DUPFD, fd); + shp->fdstatus[1] = shp->fdstatus[subpipe[2]]; if(subdup) for(n=0; n < 10; n++) { if(subdup&(1<<n)) @@ -174,6 +187,7 @@ static void iounpipe(Shell_t *shp) else if(errno!=EINTR) break; } +done: sh_close(subpipe[0]); subpipe[0] = -1; tsetio = 0; @@ -748,20 +762,20 @@ static void *sh_coinit(Shell_t *shp,char { struct cosh *csp = job.colist; const char *name = argv?argv[0]:0; - int id, open=1; + int id, xopen=1; if(!name) return(0); if(*name=='-') { name++; - open=0; + xopen=0; } nv_open(name,shp->var_tree,NV_IDENT|NV_NOADD); while(csp) { if(strcmp(name,csp->name)==0) { - if(open) + if(xopen) { coattr(csp->coshell,argv[1]); return((void*)csp); @@ -771,7 +785,7 @@ static void *sh_coinit(Shell_t *shp,char } csp = csp->next; } - if(!open) + if(!xopen) errormsg(SH_DICT,ERROR_exit(1),"%s: unknown namespace",name); environ[0][2]=0; csp = newof(0,struct cosh,1,strlen(name)+1); @@ -898,13 +912,14 @@ static int sh_coexec(Shell_t *shp,const #if SHOPT_FILESCAN static Sfio_t *openstream(Shell_t *shp, struct ionod *iop, int *save) { - int savein, fd = sh_redirect(shp,iop,3); + int err=errno,savein, fd = sh_redirect(shp,iop,3); Sfio_t *sp; savein = dup(0); if(fd==0) fd = savein; sp = sfnew(NULL,NULL,SF_UNBOUND,fd,SF_READ); - close(0); + while(close(0)<0 && errno==EINTR) + errno = err; open(e_devnull,O_RDONLY); shp->offsets[0] = -1; shp->offsets[1] = 0; @@ -1434,7 +1449,11 @@ int sh_exec(register const Shnode_t *t, stat(".",&stata); /* restore directory changed */ if(statb.st_ino!=stata.st_ino || statb.st_dev!=stata.st_dev) - chdir(shp->pwd); + { + int err=errno; + while((chdir(shp->pwd) < 0) && errno==EINTR) + errno = err; + } } sh_offstate(SH_STOPOK); if(share&SF_SHARE) @@ -1570,7 +1589,7 @@ int sh_exec(register const Shnode_t *t, unset_instance(nq,&node,&nr,mode); sh_funstaks(slp->slchild,-1); stakdelete(slp->slptr); - if(jmpval > SH_JMPFUN) + if(jmpval > SH_JMPFUN || (io && jmpval>SH_JMPIO)) siglongjmp(*shp->jmplist,jmpval); goto setexit; } @@ -1597,10 +1616,14 @@ int sh_exec(register const Shnode_t *t, if(shp->subshell) { sh_subtmpfile(shp); - if(shp->comsub==1 && !(shp->fdstatus[1]&IONOSEEK)) - unpipe=iousepipe(shp); if((type&(FAMP|TFORK))==(FAMP|TFORK)) - sh_subfork(); + { + if(shp->comsub && !(shp->fdstatus[1]&IONOSEEK)) + { + unpipe=iousepipe(shp); + sh_subfork(); + } + } } no_fork = !ntflag && !(type&(FAMP|FPOU)) && !shp->subshell && !(shp->st.trapcom[SIGINT] && *shp->st.trapcom[SIGINT]) && @@ -1676,7 +1699,7 @@ int sh_exec(register const Shnode_t *t, if(parent<0) { if(shp->comsub==1 && usepipe && unpipe) - iounpipe(shp); + sh_iounpipe(shp); break; } #else @@ -1693,7 +1716,7 @@ int sh_exec(register const Shnode_t *t, if(parent<0) { if(shp->comsub==1 && usepipe && unpipe) - iounpipe(shp); + sh_iounpipe(shp); break; } #else @@ -1715,6 +1738,8 @@ int sh_exec(register const Shnode_t *t, nlock--; job_unlock(); } + if(shp->subshell) + shp->spid = parent; if(type&FPCL) sh_close(shp->inpipe[0]); if(type&(FCOOP|FAMP)) @@ -1730,11 +1755,15 @@ int sh_exec(register const Shnode_t *t, if(shp->pipepid) shp->pipepid = parent; else + { job_wait(parent); + if(parent==shp->spid) + shp->spid = 0; + } if(shp->topfd > topfd) sh_iorestore(shp,topfd,0); - if(usepipe && tsetio && subdup && unpipe) - iounpipe(shp); + if(usepipe && tsetio && subdup) + sh_iounpipe(shp); if(!sh_isoption(SH_MONITOR)) { shp->trapnote &= ~SH_SIGIGNORE; @@ -1906,8 +1935,8 @@ int sh_exec(register const Shnode_t *t, { was_interactive = sh_isstate(SH_INTERACTIVE); sh_offstate(SH_INTERACTIVE); - sh_iosave(shp,0,shp->topfd,(char*)0); shp->pipepid = simple; + sh_iosave(shp,0,shp->topfd,(char*)0); sh_iorenumber(shp,shp->inpipe[0],0); /* * if read end of pipe is a simple command @@ -1924,7 +1953,7 @@ int sh_exec(register const Shnode_t *t, jmpval = sigsetjmp(buffp->buff,0); if(jmpval==0) { - if(shp->comsub==1) + if(shp->comsub) tsetio = 1; sh_redirect(shp,t->fork.forkio,execflg); (t->fork.forktre)->tre.tretyp |= t->tre.tretyp&FSHOWME; @@ -1953,8 +1982,8 @@ int sh_exec(register const Shnode_t *t, if(type || !sh_isoption(SH_PIPEFAIL)) shp->exitval = type; } - if(shp->comsub==1 && usepipe) - iounpipe(shp); + if(shp->comsub==1 && usepipe && unpipe) + sh_iounpipe(shp); shp->pipepid = 0; shp->st.ioset = 0; if(simple && was_errexit) @@ -2179,7 +2208,7 @@ int sh_exec(register const Shnode_t *t, } shp->exitval = n; #ifdef SIGTSTP - if(!pipejob && sh_isstate(SH_MONITOR)) + if(!pipejob && sh_isstate(SH_MONITOR) && sh_isstate(SH_INTERACTIVE)) tcsetpgrp(JOBTTY,shp->gd->pid); #endif /*SIGTSTP */ job.curpgid = savepgid; @@ -2320,7 +2349,10 @@ int sh_exec(register const Shnode_t *t, nv_putsub(np,NIL(char*),0L); nv_putval(np,cp,0); if(nameref) + { nv_setref(np,(Dt_t*)0,NV_VARNAME); + nv_onattr(np,NV_TABLE); + } if(trap=shp->st.trap[SH_DEBUGTRAP]) { av[0] = (t->tre.tretyp&COMSCAN)?"select":"for"; @@ -2352,6 +2384,8 @@ int sh_exec(register const Shnode_t *t, if(shp->st.breakcnt<0) shp->st.execbrk = (++shp->st.breakcnt !=0); } + if(nameref) + nv_offattr(np,NV_TABLE); #if SHOPT_OPTIMIZE endfor: sh_popcontext(shp,buffp); @@ -2466,8 +2500,10 @@ int sh_exec(register const Shnode_t *t, #if SHOPT_FILESCAN if(iop) { + int err=errno; sfclose(iop); - close(0); + while(close(0)<0 && errno==EINTR) + errno = err; dup(savein); shp->cur_line = 0; } @@ -2746,7 +2782,7 @@ int sh_exec(register const Shnode_t *t, stakdelete(slp->slptr); if(rp->sdict) { - Namval_t *mp, *nq; + Namval_t *nq; shp->last_root = rp->sdict; for(mp=(Namval_t*)dtfirst(rp->sdict);mp;mp=nq) { @@ -2911,6 +2947,15 @@ int sh_exec(register const Shnode_t *t, break; } } + if(shp->procsub && *shp->procsub) + { + pid_t pid, *procsub; + int exitval = shp->exitval; + for(procsub=shp->procsub;pid=*procsub;procsub++) + job_wait(pid); + *shp->procsub = 0; + shp->exitval = exitval; + } if(shp->trapnote || (shp->exitval && sh_isstate(SH_ERREXIT)) && t && echeck) sh_chktrap(shp); @@ -3167,7 +3212,7 @@ pid_t _sh_fork(Shell_t *shp,register pid { if(shp->topfd > restorefd) sh_iorestore(shp,restorefd,0); - iounpipe(shp); + sh_iounpipe(shp); } } return(parent); @@ -3479,8 +3524,7 @@ static void sh_funct(Shell_t *shp,Namval struct funenv fun; char *fname = nv_getval(SH_FUNNAMENOD); struct Level *lp =(struct Level*)(SH_LEVELNOD->nvfun); - int level, pipepid=shp->pipepid, comsub=shp->comsub; - shp->comsub = 0; + int level, pipepid=shp->pipepid; shp->pipepid = 0; sh_stats(STAT_FUNCT); if(!lp->hdr.disc) @@ -3523,7 +3567,6 @@ static void sh_funct(Shell_t *shp,Namval lp->maxlevel = level; SH_LEVELNOD->nvalue.s = lp->maxlevel; shp->last_root = nv_dict(DOTSHNOD); - shp->comsub = comsub; #if 0 nv_putval(SH_FUNNAMENOD,shp->st.funname,NV_NOFREE); #else @@ -3628,11 +3671,11 @@ static void coproc_init(Shell_t *shp, in sh_pipe(shp->cpipe); if((outfd=shp->cpipe[1]) < 10) { - int fd=fcntl(shp->cpipe[1],F_DUPFD,10); + int fd=sh_fcntl(shp->cpipe[1],F_DUPFD,10); if(fd>=10) { shp->fdstatus[fd] = (shp->fdstatus[outfd]&~IOCLEX); - close(outfd); + sh_close(outfd); shp->fdstatus[outfd] = IOCLOSE; shp->cpipe[1] = fd; } @@ -3721,7 +3764,7 @@ static int run_subshell(Shell_t *shp,con if(!shp->gd->shpath) shp->gd->shpath = pathshell(); pid = spawnveg(shp->shpath,arglist,envlist,grp); - close(fd); + sh_close(fd); for(i=3; i < 10; i++) { if(shp->fdstatus[i]&IOCLEX && i!=pin && i!=pout) @@ -4002,7 +4045,7 @@ static pid_t sh_ntfork(Shell_t *shp,cons shp->gd->shpath = pathshell(); spawnpid = path_spawn(shp,shp->gd->shpath,&argv[-1],arge,pp,(grp<<1)|1); if(fd>=0) - close(fd); + sh_close(fd); argv[0] = argv[-1]; } fail: --- src/cmd/ksh93/tests/leaks.sh +++ src/cmd/ksh93/tests/leaks.sh 2013-10-25 13:26:45.751247106 +0000 @@ -67,6 +67,11 @@ done data="(v=;sid=;di=;hi=;ti='1328244300';lv='o';id='172.3.161.178';var=(k='conn_num._total';u=;fr=;l='Number of Connections';n='22';t='number';))" read -C stat <<< "$data" +for ((i=0; i < 1; i++)) +do print -r -- "$data" +done | while read -u$n -C stat + do : + done {n}<&0- a=0$(vmstate --format='+%(size)u') for ((i=0; i < 500; i++)) do print -r -- "$data"
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