/*
* setnetgrent()
* Parse the netgroup file looking for the netgroup and build the list
* of netgrp structures. Let parse_netgrp() and read_for_group() do
* most of the work.
*/
void
__setnetgrent(char *group)
{
/* Sanity check */
if (group == NULL || !strlen(group))
return;
if (grouphead.gr == (struct netgrp *)0 ||
strcmp(group, grouphead.grname)) {
__endnetgrent();
if (parse_netgrp(group))
__endnetgrent();
else {
grouphead.grname = (char *)
malloc(strlen(group) + 1);
strcpy(grouphead.grname, group);
}
}
nextgrp = grouphead.gr;
}
int
main(int argc, char *argv[])
{
FILE *fp;
char readbuf[LINSIZ];
struct group_entry *gcur;
struct member_entry *mcur;
char *host, *user, *domain;
int ch;
char *key = NULL, *data = NULL;
int hosts = -1, i;
if (argc < 2)
usage();
while ((ch = getopt(argc, argv, "uhf:")) != -1) {
switch(ch) {
case 'u':
if (hosts != -1) {
warnx("please use only one of -u or -h");
usage();
}
hosts = 0;
break;
case 'h':
if (hosts != -1) {
warnx("please use only one of -u or -h");
usage();
}
hosts = 1;
break;
case 'f':
netgroup = optarg;
break;
default:
usage();
break;
}
}
if (hosts == -1)
usage();
if (strcmp(netgroup, "-")) {
if ((fp = fopen(netgroup, "r")) == NULL) {
err(1, "%s", netgroup);
}
} else {
fp = stdin;
}
/* Stuff all the netgroup names and members into a hash table. */
while (fgets(readbuf, LINSIZ, fp)) {
if (readbuf[0] == '#')
continue;
/* handle backslash line continuations */
while(readbuf[strlen(readbuf) - 2] == '\\') {
fgets((char *)&readbuf[strlen(readbuf) - 2],
sizeof(readbuf) - strlen(readbuf), fp);
}
data = NULL;
if ((data = (char *)(strpbrk(readbuf, " \t") + 1)) < (char *)2)
continue;
key = (char *)&readbuf;
*(data - 1) = '\0';
store(gtable, key, data);
}
fclose(fp);
/*
* Find all members of each netgroup and keep track of which
* group they belong to.
*/
for (i = 0; i < TABLESIZE; i++) {
gcur = gtable[i];
while(gcur) {
__setnetgrent(gcur->key);
while(__getnetgrent(&host, &user, &domain) != 0) {
if (hosts) {
if (!(host && !strcmp(host,"-"))) {
mstore(mtable,
host ? host : "*",
gcur->key,
domain ? domain : "*");
}
} else {
if (!(user && !strcmp(user,"-"))) {
mstore(mtable,
user ? user : "******",
gcur->key,
domain ? domain : "*");
}
}
}
gcur = gcur->next;
}
}
/* Release resources used by the netgroup parser code. */
__endnetgrent();
/* Spew out the results. */
for (i = 0; i < TABLESIZE; i++) {
mcur = mtable[i];
while(mcur) {
struct grouplist *tmp;
printf ("%s.%s\t", mcur->key, mcur->domain);
tmp = mcur->groups;
while(tmp) {
printf ("%s", tmp->groupname);
tmp = tmp->next;
if (tmp)
printf(",");
}
mcur = mcur->next;
printf ("\n");
}
}
/* Let the OS free all our resources. */
exit(0);
}
