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/*
* Copyright (C) 2007-2008 by CERN/IT/GD/ITR
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: nslistgrpmap.c,v $ $Revision: 1.2 $ $Date: 2008/01/28 15:28:06 $ CERN IT-GD/ITR Jean-Philippe Baud";
#endif /* not lint */
/* nslistgrpmap - query about a given group or list all existing groups in virtual gid table */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "Cgetopt.h"
#include "Cns_api.h"
#include "serrno.h"
extern char *optarg;
extern int optind;
main(argc, argv)
int argc;
char **argv;
{
int c;
char *dp;
int errflg = 0;
uid_t gid = -1;
char *groupname = NULL;
struct Cns_groupinfo *grp_entries;
int i;
static struct Coptions longopts[] = {
{"gid", REQUIRED_ARGUMENT, 0, OPT_IDMAP_GID},
{"group", REQUIRED_ARGUMENT, 0, OPT_IDMAP_GROUP},
{0, 0, 0, 0}
};
int nbentries;
char vidstr[256];
Copterr = 1;
Coptind = 1;
while ((c = Cgetopt_long (argc, argv, "", longopts, NULL)) != EOF) {
switch (c) {
case OPT_IDMAP_GID:
if ((gid = strtol (Coptarg, &dp, 10)) < 0 || *dp != '\0') {
fprintf (stderr, "invalid gid: %s\n", Coptarg);
errflg++;
}
break;
case OPT_IDMAP_GROUP:
if (strlen (Coptarg) > 255) {
fprintf (stderr,
"group name too long: %s\n", Coptarg);
errflg++;
} else
groupname = Coptarg;
break;
case '?':
errflg++;
break;
default:
break;
}
}
if (Coptind < argc)
errflg++;
if (errflg) {
fprintf (stderr, "usage: %s %s", argv[0],
"[--gid gid] [--group groupname]\n");
exit (USERR);
}
if (gid != -1) {
if (Cns_getgrpbygid (gid, vidstr) < 0) {
fprintf (stderr, "nslistgrpmap %d: %s\n", gid,
(serrno == ENOENT) ? "No such group" : sstrerror(serrno));
exit (USERR);
}
printf ("%8d %s\n", gid, vidstr);
} else if (groupname) {
if (Cns_getgrpbynam (groupname, &gid) < 0) {
fprintf (stderr, "nslistgrpmap %s: %s\n", groupname,
(serrno == ENOENT) ? "No such group" : sstrerror(serrno));
exit (USERR);
}
printf ("%8d %s\n", gid, groupname);
} else {
if (Cns_getgrpmap (&nbentries, &grp_entries) < 0) {
fprintf (stderr, "nslistgrpmap: %s\n", sstrerror(serrno));
exit (USERR);
}
for (i = 0; i < nbentries; i++)
printf ("%8d %s\n", (grp_entries+i)->gid, (grp_entries+i)->groupname);
}
exit (0);
}
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