mirror of
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c5bfa40044
In this mode we still collect all the output from a given target and dump it at once. However we don't treat recursive lines any differently from non-recursive lines. Also we don't print enter/leave messages after every dump. However we do ensure that we always print them once to stdout, so the parent make will collect it properly.
720 lines
19 KiB
C
720 lines
19 KiB
C
/* --------------- Moved here from job.c ---------------
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This file must be #included in job.c, as it accesses static functions.
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Copyright (C) 1996-2013 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <string.h>
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#include <descrip.h>
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#include <clidef.h>
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char *vmsify (char *name, int type);
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static int vms_jobsefnmask = 0;
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/* Wait for nchildren children to terminate */
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static void
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vmsWaitForChildren(int *status)
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{
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while (1)
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{
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if (!vms_jobsefnmask)
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{
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*status = 0;
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return;
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}
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*status = sys$wflor (32, vms_jobsefnmask);
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}
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return;
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}
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/* Set up IO redirection. */
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char *
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vms_redirect (struct dsc$descriptor_s *desc, char *fname, char *ibuf)
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{
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char *fptr;
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ibuf++;
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while (isspace ((unsigned char)*ibuf))
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ibuf++;
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fptr = ibuf;
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while (*ibuf && !isspace ((unsigned char)*ibuf))
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ibuf++;
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*ibuf = 0;
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if (strcmp (fptr, "/dev/null") != 0)
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{
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strcpy (fname, vmsify (fptr, 0));
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if (strchr (fname, '.') == 0)
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strcat (fname, ".");
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}
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desc->dsc$w_length = strlen (fname);
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desc->dsc$a_pointer = fname;
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desc->dsc$b_dtype = DSC$K_DTYPE_T;
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desc->dsc$b_class = DSC$K_CLASS_S;
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if (*fname == 0)
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printf (_("Warning: Empty redirection\n"));
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return ibuf;
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}
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/* found apostrophe at (p-1)
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inc p until after closing apostrophe.
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*/
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char *
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vms_handle_apos (char *p)
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{
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int alast;
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#define SEPCHARS ",/()= "
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alast = 0;
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while (*p != 0)
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if (*p == '"')
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if (alast)
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{
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alast = 0;
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p++;
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}
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else
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{
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p++;
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if (strchr (SEPCHARS, *p))
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break;
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alast = 1;
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}
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else
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p++;
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return p;
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}
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static int ctrlYPressed= 0;
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/* This is called at main or AST level. It is at AST level for DONTWAITFORCHILD
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and at main level otherwise. In any case it is called when a child process
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terminated. At AST level it won't get interrupted by anything except a
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inner mode level AST.
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*/
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int
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vmsHandleChildTerm(struct child *child)
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{
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int status;
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register struct child *lastc, *c;
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int child_failed;
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vms_jobsefnmask &= ~(1 << (child->efn - 32));
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lib$free_ef (&child->efn);
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if (child->comname)
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{
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if (!ISDB (DB_JOBS) && !ctrlYPressed)
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unlink (child->comname);
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free (child->comname);
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}
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(void) sigblock (fatal_signal_mask);
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child_failed = !(child->cstatus & 1 || ((child->cstatus & 7) == 0));
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/* Search for a child matching the deceased one. */
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lastc = 0;
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#if defined(RECURSIVEJOBS) /* I've had problems with recursive stuff and process handling */
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for (c = children; c != 0 && c != child; lastc = c, c = c->next)
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;
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#else
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c = child;
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#endif
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if (child_failed && !c->noerror && !ignore_errors_flag)
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{
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/* The commands failed. Write an error message,
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delete non-precious targets, and abort. */
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child_error (c, c->cstatus, 0, 0, 0);
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c->file->update_status = us_failed;
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delete_child_targets (c);
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}
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else
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{
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if (child_failed)
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{
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/* The commands failed, but we don't care. */
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child_error (c, c->cstatus, 0, 0, 1);
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child_failed = 0;
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}
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#if defined(RECURSIVEJOBS) /* I've had problems with recursive stuff and process handling */
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/* If there are more commands to run, try to start them. */
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start_job (c);
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switch (c->file->command_state)
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{
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case cs_running:
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/* Successfully started. */
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break;
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case cs_finished:
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if (c->file->update_status != us_success)
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/* We failed to start the commands. */
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delete_child_targets (c);
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break;
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default:
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error (NILF, _("internal error: '%s' command_state"),
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c->file->name);
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abort ();
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break;
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}
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#endif /* RECURSIVEJOBS */
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}
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/* Set the state flag to say the commands have finished. */
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c->file->command_state = cs_finished;
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notice_finished_file (c->file);
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#if defined(RECURSIVEJOBS) /* I've had problems with recursive stuff and process handling */
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/* Remove the child from the chain and free it. */
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if (lastc == 0)
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children = c->next;
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else
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lastc->next = c->next;
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free_child (c);
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#endif /* RECURSIVEJOBS */
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/* There is now another slot open. */
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if (job_slots_used > 0)
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--job_slots_used;
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/* If the job failed, and the -k flag was not given, die. */
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if (child_failed && !keep_going_flag)
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die (EXIT_FAILURE);
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(void) sigsetmask (sigblock (0) & ~(fatal_signal_mask));
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return 1;
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}
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/* VMS:
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Spawn a process executing the command in ARGV and return its pid. */
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#define MAXCMDLEN 200
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/* local helpers to make ctrl+c and ctrl+y working, see below */
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#include <iodef.h>
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#include <libclidef.h>
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#include <ssdef.h>
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static int ctrlMask= LIB$M_CLI_CTRLY;
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static int oldCtrlMask;
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static int setupYAstTried= 0;
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static unsigned short int chan= 0;
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static void
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reEnableAst(void)
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{
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lib$enable_ctrl (&oldCtrlMask,0);
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}
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static int
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astYHandler (void)
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{
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struct child *c;
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for (c = children; c != 0; c = c->next)
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sys$delprc (&c->pid, 0, 0);
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ctrlYPressed= 1;
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kill (getpid(),SIGQUIT);
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return SS$_NORMAL;
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}
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static void
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tryToSetupYAst(void)
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{
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$DESCRIPTOR(inputDsc,"SYS$COMMAND");
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int status;
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struct {
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short int status, count;
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int dvi;
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} iosb;
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unsigned short int loc_chan;
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setupYAstTried++;
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if (chan)
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loc_chan= chan;
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else
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{
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status= sys$assign(&inputDsc,&loc_chan,0,0);
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if (!(status&SS$_NORMAL))
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{
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lib$signal(status);
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return;
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}
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}
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status= sys$qiow (0, loc_chan, IO$_SETMODE|IO$M_CTRLYAST,&iosb,0,0,
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astYHandler,0,0,0,0,0);
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if (status==SS$_NORMAL)
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status= iosb.status;
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if (status!=SS$_NORMAL)
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{
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if (!chan)
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sys$dassgn(loc_chan);
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if (status!=SS$_ILLIOFUNC && status!=SS$_NOPRIV)
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lib$signal(status);
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return;
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}
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/* called from AST handler ? */
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if (setupYAstTried>1)
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return;
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if (atexit(reEnableAst))
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fprintf (stderr,
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_("-warning, you may have to re-enable CTRL-Y handling from DCL.\n"));
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status= lib$disable_ctrl (&ctrlMask, &oldCtrlMask);
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if (!(status&SS$_NORMAL))
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{
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lib$signal(status);
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return;
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}
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if (!chan)
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chan = loc_chan;
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}
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int
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child_execute_job (char *argv, struct child *child)
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{
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int i;
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static struct dsc$descriptor_s cmddsc;
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static struct dsc$descriptor_s pnamedsc;
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static struct dsc$descriptor_s ifiledsc;
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static struct dsc$descriptor_s ofiledsc;
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static struct dsc$descriptor_s efiledsc;
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int have_redirection = 0;
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int have_append = 0;
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int have_newline = 0;
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int spflags = CLI$M_NOWAIT;
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int status;
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char *cmd = alloca (strlen (argv) + 512), *p, *q;
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char ifile[256], ofile[256], efile[256];
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int comnamelen;
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char procname[100];
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int in_string;
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/* Parse IO redirection. */
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ifile[0] = 0;
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ofile[0] = 0;
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efile[0] = 0;
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child->comname = NULL;
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DB (DB_JOBS, ("child_execute_job (%s)\n", argv));
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while (isspace ((unsigned char)*argv))
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argv++;
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if (*argv == 0)
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return 0;
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sprintf (procname, "GMAKE_%05x", getpid () & 0xfffff);
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pnamedsc.dsc$w_length = strlen(procname);
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pnamedsc.dsc$a_pointer = procname;
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pnamedsc.dsc$b_dtype = DSC$K_DTYPE_T;
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pnamedsc.dsc$b_class = DSC$K_CLASS_S;
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in_string = 0;
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/* Handle comments and redirection. */
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for (p = argv, q = cmd; *p; p++, q++)
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{
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if (*p == '"')
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in_string = !in_string;
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if (in_string)
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{
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*q = *p;
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continue;
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}
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switch (*p)
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{
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case '#':
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*p-- = 0;
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*q-- = 0;
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break;
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case '\\':
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p++;
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if (*p == '\n')
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p++;
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if (isspace ((unsigned char)*p))
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{
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do { p++; } while (isspace ((unsigned char)*p));
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p--;
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}
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*q = *p;
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break;
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case '<':
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p = vms_redirect (&ifiledsc, ifile, p);
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*q = ' ';
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have_redirection = 1;
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break;
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case '>':
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have_redirection = 1;
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if (*(p-1) == '2')
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{
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q--;
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if (strncmp (p, ">&1", 3) == 0)
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{
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p += 3;
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strcpy (efile, "sys$output");
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efiledsc.dsc$w_length = strlen(efile);
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efiledsc.dsc$a_pointer = efile;
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efiledsc.dsc$b_dtype = DSC$K_DTYPE_T;
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efiledsc.dsc$b_class = DSC$K_CLASS_S;
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}
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else
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p = vms_redirect (&efiledsc, efile, p);
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}
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else
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{
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if (*(p+1) == '>')
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{
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have_append = 1;
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p += 1;
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}
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p = vms_redirect (&ofiledsc, ofile, p);
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}
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*q = ' ';
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break;
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case '\n':
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have_newline = 1;
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default:
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*q = *p;
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break;
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}
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}
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*q = *p;
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while (isspace ((unsigned char)*--q))
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*q = '\0';
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if (strncmp (cmd, "builtin_", 8) == 0)
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{
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child->pid = 270163;
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child->efn = 0;
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child->cstatus = 1;
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DB (DB_JOBS, (_("BUILTIN [%s][%s]\n"), cmd, cmd+8));
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p = cmd + 8;
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if ((*(p) == 'c')
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&& (*(p+1) == 'd')
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&& ((*(p+2) == ' ') || (*(p+2) == '\t')))
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{
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p += 3;
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while ((*p == ' ') || (*p == '\t'))
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p++;
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DB (DB_JOBS, (_("BUILTIN CD %s\n"), p));
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if (chdir (p))
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return 0;
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else
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return 1;
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}
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else if ((*(p) == 'r')
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&& (*(p+1) == 'm')
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&& ((*(p+2) == ' ') || (*(p+2) == '\t')))
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{
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int in_arg;
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/* rm */
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p += 3;
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while ((*p == ' ') || (*p == '\t'))
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p++;
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in_arg = 1;
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DB (DB_JOBS, (_("BUILTIN RM %s\n"), p));
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while (*p)
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{
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switch (*p)
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{
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case ' ':
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case '\t':
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if (in_arg)
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{
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*p++ = ';';
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in_arg = 0;
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}
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break;
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default:
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break;
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}
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p++;
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}
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}
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else
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{
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printf (_("Unknown builtin command '%s'\n"), cmd);
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fflush (stdout);
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return 0;
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}
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}
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/* Create a *.com file if either the command is too long for
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lib$spawn, or the command contains a newline, or if redirection
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is desired. Forcing commands with newlines into DCLs allows to
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store search lists on user mode logicals. */
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if (strlen (cmd) > MAXCMDLEN
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|| (have_redirection != 0)
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|| (have_newline != 0))
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{
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FILE *outfile;
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char c;
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char *sep;
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int alevel = 0; /* apostrophe level */
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if (strlen (cmd) == 0)
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{
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printf (_("Error, empty command\n"));
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fflush (stdout);
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return 0;
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}
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outfile = output_tmpfile (&child->comname, "sys$scratch:CMDXXXXXX.COM");
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if (outfile == 0)
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pfatal_with_name (_("fopen (temporary file)"));
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comnamelen = strlen (child->comname);
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if (ifile[0])
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{
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fprintf (outfile, "$ assign/user %s sys$input\n", ifile);
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DB (DB_JOBS, (_("Redirected input from %s\n"), ifile));
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ifiledsc.dsc$w_length = 0;
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}
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if (efile[0])
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{
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fprintf (outfile, "$ define sys$error %s\n", efile);
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DB (DB_JOBS, (_("Redirected error to %s\n"), efile));
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efiledsc.dsc$w_length = 0;
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}
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if (ofile[0])
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if (have_append)
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{
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fprintf (outfile, "$ set noon\n");
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fprintf (outfile, "$ define sys$output %.*s\n", comnamelen-3, child->comname);
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DB (DB_JOBS, (_("Append output to %s\n"), ofile));
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ofiledsc.dsc$w_length = 0;
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}
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else
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{
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fprintf (outfile, "$ define sys$output %s\n", ofile);
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DB (DB_JOBS, (_("Redirected output to %s\n"), ofile));
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ofiledsc.dsc$w_length = 0;
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}
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p = sep = q = cmd;
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for (c = '\n'; c; c = *q++)
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{
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switch (c)
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{
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case '\n':
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/* At a newline, skip any whitespace around a leading $
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from the command and issue exactly one $ into the DCL. */
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while (isspace ((unsigned char)*p))
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p++;
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if (*p == '$')
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p++;
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while (isspace ((unsigned char)*p))
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p++;
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fwrite (p, 1, q - p, outfile);
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fputc ('$', outfile);
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fputc (' ', outfile);
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/* Reset variables. */
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p = sep = q;
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break;
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/* Nice places for line breaks are after strings, after
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comma or space and before slash. */
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case '"':
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q = vms_handle_apos (q);
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sep = q;
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break;
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case ',':
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case ' ':
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sep = q;
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break;
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case '/':
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case '\0':
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sep = q - 1;
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break;
|
|
default:
|
|
break;
|
|
}
|
|
if (sep - p > 78)
|
|
{
|
|
/* Enough stuff for a line. */
|
|
fwrite (p, 1, sep - p, outfile);
|
|
p = sep;
|
|
if (*sep)
|
|
{
|
|
/* The command continues. */
|
|
fputc ('-', outfile);
|
|
}
|
|
fputc ('\n', outfile);
|
|
}
|
|
}
|
|
|
|
if (*p)
|
|
{
|
|
fwrite (p, 1, --q - p, outfile);
|
|
fputc ('\n', outfile);
|
|
}
|
|
|
|
if (have_append)
|
|
{
|
|
fprintf (outfile, "$ deassign sys$output ! 'f$verify(0)\n");
|
|
fprintf (outfile, "$ append:=append\n");
|
|
fprintf (outfile, "$ delete:=delete\n");
|
|
fprintf (outfile, "$ append/new %.*s %s\n", comnamelen-3, child->comname, ofile);
|
|
fprintf (outfile, "$ delete %.*s;*\n", comnamelen-3, child->comname);
|
|
DB (DB_JOBS, (_("Append %.*s and cleanup\n"), comnamelen-3, child->comname));
|
|
}
|
|
|
|
fclose (outfile);
|
|
|
|
sprintf (cmd, "$ @%s", child->comname);
|
|
|
|
DB (DB_JOBS, (_("Executing %s instead\n"), cmd));
|
|
}
|
|
|
|
cmddsc.dsc$w_length = strlen(cmd);
|
|
cmddsc.dsc$a_pointer = cmd;
|
|
cmddsc.dsc$b_dtype = DSC$K_DTYPE_T;
|
|
cmddsc.dsc$b_class = DSC$K_CLASS_S;
|
|
|
|
child->efn = 0;
|
|
while (child->efn < 32 || child->efn > 63)
|
|
{
|
|
status = lib$get_ef ((unsigned long *)&child->efn);
|
|
if (!(status & 1))
|
|
{
|
|
if (child->comname)
|
|
{
|
|
if (!ISDB (DB_JOBS))
|
|
unlink (child->comname);
|
|
free (child->comname);
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
sys$clref (child->efn);
|
|
|
|
vms_jobsefnmask |= (1 << (child->efn - 32));
|
|
|
|
/*
|
|
LIB$SPAWN [command-string]
|
|
[,input-file]
|
|
[,output-file]
|
|
[,flags]
|
|
[,process-name]
|
|
[,process-id] [,completion-status-address] [,byte-integer-event-flag-num]
|
|
[,AST-address] [,varying-AST-argument]
|
|
[,prompt-string] [,cli] [,table]
|
|
*/
|
|
|
|
#ifndef DONTWAITFORCHILD
|
|
/*
|
|
* Code to make ctrl+c and ctrl+y working.
|
|
* The problem starts with the synchronous case where after lib$spawn is
|
|
* called any input will go to the child. But with input re-directed,
|
|
* both control characters won't make it to any of the programs, neither
|
|
* the spawning nor to the spawned one. Hence the caller needs to spawn
|
|
* with CLI$M_NOWAIT to NOT give up the input focus. A sys$waitfr
|
|
* has to follow to simulate the wanted synchronous behaviour.
|
|
* The next problem is ctrl+y which isn't caught by the crtl and
|
|
* therefore isn't converted to SIGQUIT (for a signal handler which is
|
|
* already established). The only way to catch ctrl+y, is an AST
|
|
* assigned to the input channel. But ctrl+y handling of DCL needs to be
|
|
* disabled, otherwise it will handle it. Not to mention the previous
|
|
* ctrl+y handling of DCL needs to be re-established before make exits.
|
|
* One more: At the time of LIB$SPAWN signals are blocked. SIGQUIT will
|
|
* make it to the signal handler after the child "normally" terminates.
|
|
* This isn't enough. It seems reasonable for simple command lines like
|
|
* a 'cc foobar.c' spawned in a subprocess but it is unacceptable for
|
|
* spawning make. Therefore we need to abort the process in the AST.
|
|
*
|
|
* Prior to the spawn it is checked if an AST is already set up for
|
|
* ctrl+y, if not one is set up for a channel to SYS$COMMAND. In general
|
|
* this will work except if make is run in a batch environment, but there
|
|
* nobody can press ctrl+y. During the setup the DCL handling of ctrl+y
|
|
* is disabled and an exit handler is established to re-enable it.
|
|
* If the user interrupts with ctrl+y, the assigned AST will fire, force
|
|
* an abort to the subprocess and signal SIGQUIT, which will be caught by
|
|
* the already established handler and will bring us back to common code.
|
|
* After the spawn (now /nowait) a sys$waitfr simulates the /wait and
|
|
* enables the ctrl+y be delivered to this code. And the ctrl+c too,
|
|
* which the crtl converts to SIGINT and which is caught by the common
|
|
* signal handler. Because signals were blocked before entering this code
|
|
* sys$waitfr will always complete and the SIGQUIT will be processed after
|
|
* it (after termination of the current block, somewhere in common code).
|
|
* And SIGINT too will be delayed. That is ctrl+c can only abort when the
|
|
* current command completes. Anyway it's better than nothing :-)
|
|
*/
|
|
|
|
if (!setupYAstTried)
|
|
tryToSetupYAst();
|
|
status = lib$spawn (&cmddsc, /* cmd-string */
|
|
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc, /* input-file */
|
|
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc, /* output-file */
|
|
&spflags, /* flags */
|
|
&pnamedsc, /* proc name */
|
|
&child->pid, &child->cstatus, &child->efn,
|
|
0, 0,
|
|
0, 0, 0);
|
|
if (status & 1)
|
|
{
|
|
status= sys$waitfr (child->efn);
|
|
vmsHandleChildTerm(child);
|
|
}
|
|
#else
|
|
status = lib$spawn (&cmddsc,
|
|
(ifiledsc.dsc$w_length == 0)?0:&ifiledsc,
|
|
(ofiledsc.dsc$w_length == 0)?0:&ofiledsc,
|
|
&spflags,
|
|
&pnamedsc,
|
|
&child->pid, &child->cstatus, &child->efn,
|
|
vmsHandleChildTerm, child,
|
|
0, 0, 0);
|
|
#endif
|
|
|
|
if (!(status & 1))
|
|
{
|
|
printf (_("Error spawning, %d\n") ,status);
|
|
fflush (stdout);
|
|
switch (status)
|
|
{
|
|
case 0x1c:
|
|
errno = EPROCLIM;
|
|
break;
|
|
default:
|
|
errno = EFAIL;
|
|
}
|
|
}
|
|
|
|
return (status & 1);
|
|
}
|