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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*
* Copyright (c) 1999-2003 Smithsonian Astrophysical Observatory
*/
#include <xpap.h>
#define MAX_XPAS 10000
extern char *optarg;
extern int optind;
#ifdef ANSI_FUNC
void
usage (char *s)
#else
void usage(s)
char *s;
#endif
{
fprintf(stderr, "\n");
fprintf(stderr, "usage:\n");
fprintf(stderr, " %s [-c] [-h] [-i nsinet] [-m method] [-n] [-t sval,lval] [-u users] [-v|-V] <template> [type]\n", s);
fprintf(stderr, "\n");
fprintf(stderr, "switches:\n");
fprintf(stderr, "\t-c\tcontact each access point individually to see if it is available\n");
fprintf(stderr, "\t-h\tprint this message\n");
fprintf(stderr, "\t-i\toverride XPA_NSINET environment variable\n");
fprintf(stderr, "\t-m\toverride XPA_METHOD environment variable\n");
fprintf(stderr, "\t-n\treturn number of matches instead of \"yes\" or \"no\"\n");
fprintf(stderr, "\t-t \toverride XPA_[SHORT,LONG]_TIMEOUT environment variables\n");
fprintf(stderr, "\t-u \toverride XPA_NSUSERS environment variable\n");
fprintf(stderr, "\t-v\tprint info about successful access points\n");
fprintf(stderr, "\t-V\tprint info and errors about all access points\n");
fprintf(stderr, "\t--version display version and exit\n");
fprintf(stderr, "\n");
fprintf(stderr, "xpaaccess returns \"yes\" if there are existing XPA access points that match\n");
fprintf(stderr, "the template (and optional access type: g,i,s), and returns \"no\" otherwise.\n");
fprintf(stderr, "If -n is specified, the number of matches is returned.\n");
fprintf(stderr, "Templates are of the form [class:]name. Wildcards *,?,[] are accepted.\n");
fprintf(stderr, "\n");
fprintf(stderr, "examples:\n");
fprintf(stderr, "\tcsh> if( `xpaaccess ds9` == \"yes\") then ...\n" );
fprintf(stderr, "\tcsh> set got=`xpaaccess -n ds9 g`\n");
fprintf(stderr, "\n(version: %s)\n", XPA_VERSION);
exit(0);
}
/* catch error from pre 2.1 server -- if we find this error, we know the
access point is available */
#define OLD_SERVER(s) strstr(s, "XPA$ERROR invalid xpa command in initialization string")
#ifdef ANSI_FUNC
int
main (int argc, char **argv)
#else
int
main(argc, argv)
int argc;
char **argv;
#endif
{
int i;
int c;
int got;
int n=0;
int donum=0;
int verbosity=0;
int contact=0;
char cmd[SZ_LINE];
char mode[SZ_LINE];
char *type=NULL;
char *xtmpl=NULL;
char **rclasses;
char **rnames;
char **rmethods;
char **rinfos;
char *names[MAX_XPAS];
char *errs[MAX_XPAS];
XPA xpa=NULL;
/* display version and exit, if necessary */
if( (argc == 2) && !strcmp(argv[1], "--version") ){
fprintf(stderr, "%s\n", XPA_VERSION);
exit(0);
}
/* start with no mode flag */
*mode = '\0';
/* we want the args in the same order in which they arrived, and
gnu getopt sometimes changes things without this */
putenv("POSIXLY_CORRECT=true");
/* process switch arguments */
while ((c = getopt(argc, argv, "chi:m:nt:u:vVwW")) != -1){
switch(c){
case 'c':
contact=1;
break;
case 'h':
usage(argv[0]);
case 'i':
snprintf(cmd, SZ_LINE, "XPA_NSINET=%s", optarg);
putenv(xstrdup(cmd));
break;
case 'm':
snprintf(cmd, SZ_LINE, "XPA_METHOD=%s", optarg);
putenv(xstrdup(cmd));
break;
case 'n':
donum=1;
break;
case 't':
{
int xip=0;
char xbuf[SZ_LINE];
newdtable(",;");
if( word(optarg, xbuf, &xip) && *xbuf && (*xbuf != '*') ){
snprintf(cmd, SZ_LINE, "XPA_SHORT_TIMEOUT=%s", xbuf);
putenv(xstrdup(cmd));
}
if( word(optarg, xbuf, &xip) && *xbuf && (*xbuf != '*') ){
snprintf(cmd, SZ_LINE, "XPA_LONG_TIMEOUT=%s", xbuf);
putenv(xstrdup(cmd));
}
freedtable();
}
break;
case 'u':
snprintf(cmd, SZ_LINE, "XPA_NSUSERS=%s", optarg);
putenv(xstrdup(cmd));
break;
case 'v':
verbosity=1;
break;
case 'V':
verbosity=2;
break;
/* for backward compatibility with 1.0 */
case 'w':
case 'W':
break;
}
}
/* we must have a template */
if( optind >= argc ){
usage(argv[0]);
}
else{
xtmpl = argv[optind];
optind++;
if( optind < argc ){
type = argv[optind];
}
}
/* if we need to contact each server ... */
if( contact ){
got = XPAAccess(xpa, xtmpl, type, mode, names, errs, MAX_XPAS);
for(i=0; i<got; i++){
if( !errs[i] || OLD_SERVER(errs[i]) ){
if( verbosity ) fprintf(stdout, "%s\n", names[i]);
n++;
}
else{
if( verbosity >= 2 ) fprintf(stdout, "%s", errs[i]);
}
if( errs[i] ) xfree(errs[i]);
if( names[i] ) xfree(names[i]);
}
}
/* only contact name server */
else{
n = XPANSLookup(xpa, xtmpl, type, &rclasses, &rnames, &rmethods, &rinfos);
/* free up the space */
for(i=0; i<n; i++){
if( verbosity ){
fprintf(stdout, "%s", rmethods[i]);
if( strcmp(rinfos[i], XPA_DEF_CLIENT_INFO) )
fprintf(stdout, " %s", rinfos[i]);
fprintf(stdout, "\n");
}
/* done with these strings */
xfree(rclasses[i]);
xfree(rnames[i]);
xfree(rmethods[i]);
xfree(rinfos[i]);
}
/* free up arrays returned by name server */
if( n > 0 ){
xfree(rclasses);
xfree(rnames);
xfree(rmethods);
xfree(rinfos);
}
}
/* print out number */
if( !verbosity && donum ){
fprintf(stdout, "%d\n", n);
}
/* print out yes/no */
else if( !verbosity && !donum ){
if( n > 0 )
fprintf(stdout, "yes\n");
else
fprintf(stdout, "no\n");
}
fflush(stdout);
return(n);
}
|
