Merge commit '0ebcd152c10d2eae6b62f16e7138aa187a8a1bdd' as 'xpa'

1 files changed, 212 insertions, 0 deletions

diff --git a/xpa/xpaaccess.c b/xpa/xpaaccess.c
new file mode 100644
index 0000000..81643ac
--- /dev/null
+++ b/xpa/xpaaccess.c
@@ -0,0 +1,212 @@
+/*
+ *	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);
+}