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/*
* SCCS: @(#)targs.c 1.8 (96/11/04)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1992 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)targs.c 1.8 96/11/04 TETware release 3.3
NAME: targs.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: April 1992
DESCRIPTION:
function to generate a list of trace option arguments
MODIFICATIONS:
Geoff Clare, UniSoft Ltd., August 1996
Forward trace flags from MTCC to MTCM via TCCD.
Aaron Plattner, April 2010
Fixed warnings when compiled with GCC's -Wall option.
************************************************************************/
#ifndef NOTRACE
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "dtmac.h"
#include "trace.h"
#include "dtmsg.h"
#include "ltoa.h"
#include "dtetlib.h"
/* global variables in trace.c */
extern struct tflags tet_tflags[];
extern int tet_Ntflags;
extern struct stype tet_stype[];
extern int tet_Nstype;
/*
** tet_traceargs() - construct an exec argv for process ptype and return
** a pointer thereto
**
** if argv is non-zero,
** newargv consists of argv[0], zero or more -T arguments,
** then argv[1] ... argv[n]
** otherwise newargv consists only of the -T arguments
*/
char **tet_traceargs(ptype, argv)
int ptype;
char **argv;
{
register char *p, **ap;
register int argc, needlen, tfcount;
register long sys;
register struct tflags *tp;
register struct stype *sp;
int fullargs;
static char **newargv;
static int nalen;
/* count the argv arguments */
if (argv) {
for (ap = argv; *ap; ap++)
;
argc = ap - argv;
}
else
argc = 0;
if (tet_Ttrace > 0)
tet_tftrace();
TRACE2(tet_Ttrace, 4, "trace arguments for %s:", tet_ptptype(ptype));
/* add the number of trace flags that we will generate */
tfcount = 0;
for (tp = tet_tflags; tp < &tet_tflags[tet_Ntflags]; tp++)
if (tp->tf_sys && tp->tf_value > 0)
tfcount++;
/* make sure that the receiving area is big enough */
argc += tfcount + 1;
needlen = (argc * sizeof *newargv) + (tfcount * (LNUMSZ + tet_Nstype + 4));
if (BUFCHK((char **) &newargv, &nalen, needlen) < 0)
return((char **) 0);
/* copy over the first argument */
ap = newargv;
p = (char *) (ap + argc);
if (argv) {
TRACE2(tet_Ttrace, 4, "first arg = \"%s\"", *argv);
*ap++ = *argv++;
}
/* construct a -T arg for each non-zero trace flag that is to
be passed to the execed process -
process that may themselves exec other processes receive
flags to be passed on to them as well */
for (tp = tet_tflags; tp < &tet_tflags[tet_Ntflags]; tp++) {
if (!tp->tf_sys || tp->tf_value <= 0)
continue;
sys = 0;
TF_SET(sys, ptype);
switch (ptype) {
case PT_MTCC:
TF_SET(sys, PT_STCC);
TF_SET(sys, PT_MTCM);
TF_SET(sys, PT_SYNCD);
TF_SET(sys, PT_XRESD);
/* fall through */
case PT_STCC:
TF_SET(sys, PT_STCM);
TF_SET(sys, PT_MTCM);
fullargs = 1;
break;
case PT_MTCM:
case PT_STCM:
TF_SET(sys, PT_STCC);
TF_SET(sys, PT_MTCM);
fullargs = 1;
break;
default:
fullargs = 0;
break;
}
if ((sys & tp->tf_sys) == 0)
continue;
if (tp->tf_sys == ~0)
fullargs = 0;
*ap++ = p;
*p++ = '-';
*p++ = 'T';
if (fullargs) {
for (sp = tet_stype; sp < &tet_stype[tet_Nstype]; sp++)
if (TF_ISSET(tp->tf_sys, sp->st_ptype))
*p++ = sp->st_name;
*p++ = ',';
}
sprintf(p, "%c%d", tp->tf_name, tp->tf_value);
TRACE2(tet_Ttrace, 4, "trace arg = \"%s\"", *(ap - 1));
p += strlen(p) + 1;
}
/* copy over the rest of the original arguments */
if (argv)
while (*argv) {
TRACE2(tet_Ttrace, 4, "other arg = \"%s\"", *argv);
*ap++ = *argv++;
}
*ap = (char *) 0;
return(newargv);
}
#else
int tet_targs_c_not_empty;
#endif /* !NOTRACE */
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