int
main(int argc, char *argv[])
{
int xval = 0;
struct passwd *pw;
ngroups_max = sysconf(_SC_NGROUPS_MAX);
if (ngroups_max < 0) {
(void) fprintf(stderr,
"groups: could not get configuration info\n");
exit(1);
}
if (ngroups_max == 0)
exit(0);
if (argc == 1) {
if ((pw = getpwuid(getuid())) == NULL) {
(void) fprintf(stderr, "groups: No passwd entry\n");
xval = 1;
} else
showgroups(pw);
} else while (*++argv) {
if ((pw = getpwnam(*argv)) == NULL) {
(void) fprintf(stderr,
"groups: %s : No such user\n", *argv);
xval = 1;
} else {
if (argc > 2)
(void) printf("%s : ", *argv);
showgroups(pw);
}
}
return (xval);
}
/* try to join a group */
int joinagroup(int sock)
{
Packet * pkt;
char bufr[MAXPKTLEN];
char * bufrptr;
int bufrlen;
char * gname;
char * mname;
/* send a list group request */
sendpkt(sock, LIST_GROUPS, 0, NULL);
/* recv a list group reply */
pkt = recvpkt(sock);
if (!pkt) {
fprintf(stderr, "error: server died\n");
exit(1);
}
if (pkt->type != LIST_GROUPS) {
fprintf(stderr, "error: unexpected reply from server\n");
exit(1);
}
/* display groups */
showgroups(pkt->lent, pkt->text);
/* read in group name */
printf("which group? ");
fgets(bufr, MAXPKTLEN, stdin);
bufr[strlen(bufr)-1] = '\0';
/* may want to quit */
if (strcmp(bufr, "") == 0 ||
strncmp(bufr, QUIT_STRING, strlen(QUIT_STRING)) == 0) {
close(sock);
exit(0);
}
gname = strdup(bufr);
/* read in member name */
printf("what nickname? ");
fgets(bufr, MAXPKTLEN, stdin);
bufr[strlen(bufr)-1] = '\0';
/* may want to quit */
if (strcmp(bufr, "") == 0 ||
strncmp(bufr, QUIT_STRING, strlen(QUIT_STRING)) == 0) {
close(sock);
exit(0);
}
mname = strdup(bufr);
/* send a join group message */
bufrptr = bufr;
strcpy(bufrptr, gname);
bufrptr += strlen(bufrptr) + 1;
strcpy(bufrptr, mname);
bufrptr += strlen(bufrptr) + 1;
bufrlen = bufrptr - bufr;
sendpkt(sock, JOIN_GROUP, bufrlen, bufr);
/* read the reply */
pkt = recvpkt(sock);
if (!pkt) {
fprintf(stderr, "error: server died\n");
exit(1);
}
if (pkt->type != JOIN_ACCEPTED && pkt->type != JOIN_REJECTED) {
fprintf(stderr, "error: unexpected reply from server\n");
exit(1);
}
/* if rejected display the reason */
if (pkt->type == JOIN_REJECTED) {
printf("admin: %s\n", pkt->text);
free(gname);
free(mname);
return(0);
} else {
printf("admin: joined '%s' as '%s'\n", gname, mname);
free(gname);
free(mname);
return(1);
}
}
