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From: todd brandys <brandys@eng3.hep.uiuc.edu>

Browse Source 
An extension to the code to allow for a pg_password authentication database
that is *seperate* from the system password file
This commit is contained in:
Marc G. Fournier
1997-12-04 00:28:15 +00:00
parent 333323f304
commit 4c04f7724e
19 changed files with 494 additions and 63 deletions
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68
src/backend/postmaster/postmaster.c
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@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.62 1997/11/17 03:47:28 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.63 1997/12/04 00:27:17 scrappy Exp $
*
* NOTES
*
@@ -47,6 +47,7 @@
#include <signal.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#if !defined(NO_UNISTD_H)
#include <unistd.h>
@@ -78,6 +79,7 @@
#include "libpq/auth.h"
#include "libpq/pqcomm.h"
#include "libpq/pqsignal.h"
#include "libpq/crypt.h"
#include "miscadmin.h"
#include "version.h"
#include "lib/dllist.h"
@@ -199,6 +201,7 @@ static void usage(const char *);
static int ServerLoop(void);
static int BackendStartup(StartupInfo *packet, Port *port, int *pidPtr);
static void send_error_reply(Port *port, const char *errormsg);
static void RandomSalt(char* salt);
extern char *optarg;
extern int optind,
@@ -663,7 +666,27 @@ ServerLoop(void)
switch (status)
{
case STATUS_OK:
{
/* Here is where we check for a USER login packet. If there is one, then
* we must deterine whether the login has a password in pg_user. If so, send
* back a salt to crypt() the password with. Otherwise, send an unsalt packet
* back and read the real startup packet.
*/
if (ntohl(port->buf.msgtype) == STARTUP_USER_MSG) {
PacketLen plen;
port->buf.msgtype = htonl(crypt_salt(port->buf.data));
plen = sizeof(port->buf.len) + sizeof(port->buf.msgtype) + 2;
port->buf.len = htonl(plen);
RandomSalt(port->salt);
memcpy((void*)port->buf.data, (void*)port->salt, 2);
status = PacketSend(port, &port->buf, plen, BLOCKING);
if (status != STATUS_OK)
break;
/* port->nBytes = 0; */
continue;
} else {
int CSstatus; /* Completion status of
* ConnStartup */
char errormsg[200]; /* error msg from
@@ -1355,3 +1378,44 @@ dumpstatus(SIGNAL_ARGS)
curr = DLGetSucc(curr);
}
}
/*
* CharRemap
*/
static char
CharRemap(long int ch) {
if (ch < 0)
ch = -ch;
ch = ch % 62;
if (ch < 26)
return ('A' + ch);
ch -= 26;
if (ch < 26)
return ('a' + ch);
ch -= 26;
return ('0' + ch);
}
/*
* RandomSalt
*/
static void
RandomSalt(char* salt) {
static bool initialized = false;
if (!initialized) {
time_t now;
now = time(NULL);
srandom((unsigned int)now);
initialized = true;
}
*salt = CharRemap(random());
*(salt + 1) = CharRemap(random());
}