/*
* fe_getauthname -- returns a pointer to dynamic space containing whatever
* name the user has authenticated to the system
* if there is an error, return the error message in PQerrormsg
*/
char *
fe_getauthname(char *PQerrormsg)
{
const char *name = NULL;
char *authn;
MsgType authsvc;
#ifdef WIN32
char username[128];
DWORD namesize = sizeof(username) - 1;
#else
char pwdbuf[BUFSIZ];
struct passwd pwdstr;
struct passwd *pw = NULL;
#endif
authsvc = fe_getauthsvc(PQerrormsg);
/* this just guards against broken DEFAULT_CLIENT_AUTHSVC, see above */
if (authsvc == 0)
return NULL; /* leave original error message in place */
pglock_thread();
#ifdef KRB4
if (authsvc == STARTUP_KRB4_MSG)
name = pg_krb4_authname(PQerrormsg);
#endif
#ifdef KRB5
if (authsvc == STARTUP_KRB5_MSG)
name = pg_krb5_authname(PQerrormsg);
#endif
if (authsvc == STARTUP_MSG
|| (authsvc == STARTUP_KRB4_MSG && !name)
|| (authsvc == STARTUP_KRB5_MSG && !name))
{
#ifdef WIN32
if (GetUserName(username, &namesize))
name = username;
#else
if (pqGetpwuid(geteuid(), &pwdstr, pwdbuf, sizeof(pwdbuf), &pw) == 0)
name = pw->pw_name;
#endif
}
if (authsvc != STARTUP_MSG && authsvc != STARTUP_KRB4_MSG && authsvc != STARTUP_KRB5_MSG)
snprintf(PQerrormsg, PQERRORMSG_LENGTH,
libpq_gettext("fe_getauthname: invalid authentication system: %d\n"),
authsvc);
authn = name ? strdup(name) : NULL;
pgunlock_thread();
return authn;
}
/*
* pg_fe_getauthname -- returns a pointer to dynamic space containing whatever
* name the user has authenticated to the system
*
* if there is an error, return NULL with an error message in PQerrormsg
*/
char *
pg_fe_getauthname(char *PQerrormsg)
{
#ifdef KRB5
const char *krb5_name = NULL;
#endif
const char *name = NULL;
char *authn;
#ifdef WIN32
char username[128];
DWORD namesize = sizeof(username) - 1;
#else
char pwdbuf[BUFSIZ];
struct passwd pwdstr;
struct passwd *pw = NULL;
#endif
/*
* pglock_thread() really only needs to be called around
* pg_krb5_authname(), but some users are using configure
* --enable-thread-safety-force, so we might as well do the locking within
* our library to protect pqGetpwuid(). In fact, application developers
* can use getpwuid() in their application if they use the locking call we
* provide, or install their own locking function using
* PQregisterThreadLock().
*/
pglock_thread();
#ifdef KRB5
/* pg_krb5_authname gives us a strdup'd value that we need
* to free later, however, we don't want to free 'name' directly
* in case it's *not* a Kerberos login and we fall through to
* name = pw->pw_name; */
krb5_name = pg_krb5_authname(PQerrormsg);
name = krb5_name;
#endif
if (!name)
{
#ifdef WIN32
if (GetUserName(username, &namesize))
name = username;
#else
if (pqGetpwuid(geteuid(), &pwdstr, pwdbuf, sizeof(pwdbuf), &pw) == 0)
name = pw->pw_name;
#endif
}
authn = name ? strdup(name) : NULL;
#ifdef KRB5
/* Free the strdup'd string from pg_krb5_authname, if we got one */
if (krb5_name)
free(krb5_name);
#endif
pgunlock_thread();
return authn;
}
