/*

* Copyright (c) 1999-2003 Smithsonian Astrophysical Observatory

*/

#include <xpap.h>

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 [-h] [-i nsinet] [-m method] [-n] [-s] [-t sval,lval] [-u users] <tmpl|host:port> [paramlist]\n", s);

fprintf(stderr, "\n");

fprintf(stderr, "switches:\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\tdon't wait for message after server completes (kind of useless!)\n");

fprintf(stderr, "\t-s\tserver mode\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--version display version and exit\n");

fprintf(stderr, "\n");

fprintf(stderr, "Data will be retrieved from access points matching the template or host:port.\n");

fprintf(stderr, "Templates are of the form [class:]name. Wildcards *,?,[] are accepted.\n");

fprintf(stderr, "A set of qualifying parameters can be appended.\n");

fprintf(stderr, "\n");

fprintf(stderr, "examples:\n");

fprintf(stderr, "\tcsh> xpaget ds9 file\n");

fprintf(stderr, "\tcsh> xpaget bynars.harvard.edu:1147\n");

fprintf(stderr, "\n(version: %s)\n", XPA_VERSION);

exit(1);

}

#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 lp;

int errcode=0;

int server=0;

int maxhosts=XPA_MAXHOSTS;

char *paramlist=NULL;

char *xtemplate=NULL;

char lbuf[SZ_LINE];

char tbuf[SZ_LINE];

char mode[SZ_LINE];

char cmd[SZ_LINE];

char *s;

char **errs=NULL;

char **names=NULL;

int fds[1];

XPA xpa=NULL;

/* display version and exit, if necessary */

if( (argc == 2) && !strcmp(argv[1], "--version") ){

fprintf(stderr, "%s\n", XPA_VERSION);

exit(0);

}

/* make sure we have enough arguments */

if( argc < 2 )

usage(argv[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, "hi:m:nst:u:wW")) != -1){

switch(c){

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':

if( *mode != '\0' )

strcat(mode, ",");

strcat(mode, "ack=false");

break;

case 's':

server = 1;

xpa = XPAOpen(NULL);

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;

/* for backward compatibility with 1.0 */

case 'w':

case 'W':

break;

}

}

/* no explicit host:port specified, so we should have a name */

if( optind >= argc ){

/* in server mode, we can skip the host on the command line */

if( !server )

usage(argv[0]);

}

else{

xtemplate = xstrdup(argv[optind]);

optind++;

}

/* make the paramlist */

paramlist = XPAArgvParamlist(argc, argv, optind);

/* init variables for names and ports */

if( (s=(char *)getenv("XPA_MAXHOSTS")) != NULL )

maxhosts = atoi(s);

names = (char **)xcalloc(maxhosts, sizeof(char *));

errs = (char **)xcalloc(maxhosts, sizeof(char *));

/* we only send to stdout */

fds[0] = fileno(stdout);

again:

/* if we are in server mode, we might have to read a line from stdin

to grab the template and paramlist */

if( server && (xtemplate==NULL) ){

/* read description of template and paramlist */

if( fgets(lbuf, SZ_LINE, stdin) == NULL )

exit(errcode);

if( (*lbuf == '#') || (*lbuf == '\n') )

goto again;

lp = 0;

if( word(lbuf, tbuf, &lp) && !strcmp(tbuf, "xpaget") &&

word(lbuf, tbuf, &lp) ){

xtemplate = xstrdup(tbuf);

paramlist = xstrdup(&(lbuf[lp]));

nowhite(paramlist, paramlist);

}

else{

fprintf(stderr, "XPA$ERROR invalid command: %s", lbuf);

exit(++errcode);

}

}

/* process xpa requests */

got = XPAGetFd(xpa, xtemplate, paramlist, mode, fds, names, errs, -maxhosts);

if( got == 0 ){

fprintf(stderr, "XPA$ERROR no 'xpaget' access points match template: %s\n",

xtemplate);

errcode++;

}

else{

/* display errors and free up strings */

for(i=0; i<got; i++){

if( errs[i] != NULL ){

fprintf(stderr, "%s", errs[i]);

xfree(errs[i]);

errcode++;

}

if( names[i] != NULL )

xfree(names[i]);

}

}

/* free the paramlist */

if( paramlist!= NULL ){

xfree(paramlist);

paramlist = NULL;

}

/* and the template */

if( xtemplate != NULL ){

xfree(xtemplate);

xtemplate = NULL;

}

/* if we are in server mode, go back for more */

if( server )

goto again;

else{

/* clean up */

if( errs ) xfree(errs);

if( names ) xfree(names);

XPACleanup();

exit(errcode);

}

return(0);

}