1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* 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.
************************************************************************/
#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++ = ',';
}
(void) 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 */
|
