/*
* Convert host to network-name
*/
int
host2netname(
char netname[MAXNETNAMELEN + 1],
const char *host,
const char *domain)
{
char *dfltdom;
char hostname[MAXHOSTNAMELEN+1];
if (domain == NULL) {
if (_rpc_get_default_domain(&dfltdom) != 0) {
return (0);
}
domain = dfltdom;
}
if (host == NULL) {
(void) gethostname(hostname, sizeof(hostname));
host = hostname;
}
if (strlen(domain) + 1 + strlen(host) > MAXNETNAMELEN) {
return (0);
}
(void) sprintf(netname, "%s.%s@%s", OPSYS, host, domain);
return (1);
}
/*
* Convert network-name to hostname
*/
int
netname2host(
char netname[MAXNETNAMELEN + 1],
char *hostname,
int hostlen)
{
int err;
char valbuf[1024];
char *val;
char *val2;
int vallen;
char *domain;
if (getnetid(netname, valbuf)) {
val = valbuf;
if ((*val == '0') && (val[1] == ':')) {
(void) strncpy(hostname, val + 2, hostlen);
return (1);
}
}
val = strchr(netname, '.');
if (val == NULL)
return (0);
if (strncmp(netname, OPSYS, (val - netname)))
return (0);
val++;
val2 = strchr(val, '@');
if (val2 == NULL)
return (0);
vallen = val2 - val;
if (vallen > (hostlen - 1))
vallen = hostlen - 1;
(void) strncpy(hostname, val, vallen);
hostname[vallen] = 0;
err = _rpc_get_default_domain(&domain); /* change to rpc */
if (err)
return (0);
if (strcmp(val2 + 1, domain))
return (0); /* wrong domain */
else
return (1);
}
/*
* Convert unix cred to network-name
*/
int
user2netname(
char netname[MAXNETNAMELEN + 1],
const uid_t uid,
const char *domain)
{
char *dfltdom;
#define MAXIPRINT (11) /* max length of printed integer */
if (domain == NULL) {
if (_rpc_get_default_domain(&dfltdom) != 0) {
return (0);
}
domain = dfltdom;
}
if (strlen(domain) + 1 + MAXIPRINT > MAXNETNAMELEN) {
return (0);
}
(void) sprintf(netname, "%s.%ld@%s", OPSYS, (u_long)uid, domain);
return (1);
}
/*
* Convert network-name into unix credential
*/
int
netname2user(
char netname[MAXNETNAMELEN + 1],
uid_t *uidp,
gid_t *gidp,
int *gidlenp,
gid_t *gidlist)
{
char *p;
int gidlen;
uid_t uid;
long luid;
struct passwd *pwd;
char val[1024];
char *val1, *val2;
char *domain;
int vallen;
int err;
if (getnetid(netname, val)) {
p = strtok(val, ":");
if (p == NULL)
return (0);
*uidp = (uid_t) atol(val);
p = strtok(NULL, "\n,");
*gidp = (gid_t) atol(p);
if (p == NULL) {
return (0);
}
gidlen = 0;
for (gidlen = 0; gidlen < NGROUPS; gidlen++) {
p = strtok(NULL, "\n,");
if (p == NULL)
break;
gidlist[gidlen] = (gid_t) atol(p);
}
*gidlenp = gidlen;
return (1);
}
val1 = strchr(netname, '.');
if (val1 == NULL)
return (0);
if (strncmp(netname, OPSYS, (val1-netname)))
return (0);
val1++;
val2 = strchr(val1, '@');
if (val2 == NULL)
return (0);
vallen = val2 - val1;
if (vallen > (1024 - 1))
vallen = 1024 - 1;
(void) strncpy(val, val1, 1024);
val[vallen] = 0;
err = _rpc_get_default_domain(&domain); /* change to rpc */
if (err)
return (0);
if (strcmp(val2 + 1, domain))
return (0); /* wrong domain */
if (sscanf(val, "%ld", &luid) != 1)
return (0);
uid = luid;
/* use initgroups method */
pwd = getpwuid(uid);
if (pwd == NULL)
return (0);
*uidp = pwd->pw_uid;
*gidp = pwd->pw_gid;
*gidlenp = _getgroups(pwd->pw_name, gidlist);
return (1);
}
