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/*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: password.c,v 1.20 1999/01/17 06:18:26 momjian Exp $
*
*/
#include <postgres.h>
#include <miscadmin.h>
#include <libpq/password.h>
#include <libpq/libpq.h>
#include <storage/fd.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_CRYPT_H
#include <crypt.h>
#endif
int
verify_password(char *auth_arg, char *user, char *password)
{
char *pw_file_fullname;
FILE *pw_file;
pw_file_fullname = (char *) palloc(strlen(DataDir) + strlen(auth_arg) + 2);
strcpy(pw_file_fullname, DataDir);
strcat(pw_file_fullname, "/");
strcat(pw_file_fullname, auth_arg);
#ifndef __CYGWIN32__
pw_file = AllocateFile(pw_file_fullname, "r");
#else
pw_file = AllocateFile(pw_file_fullname, "rb");
#endif
if (!pw_file)
{
snprintf(PQerrormsg, ERROR_MSG_LENGTH,
"verify_password: couldn't open password file '%s'\n",
pw_file_fullname);
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
pfree(pw_file_fullname);
return STATUS_ERROR;
}
while (!feof(pw_file))
{
char pw_file_line[255],
*p,
*test_user,
*test_pw;
fgets(pw_file_line, sizeof(pw_file_line), pw_file);
p = pw_file_line;
test_user = strtok(p, ":");
test_pw = strtok(NULL, ":");
if (!test_user || !test_pw ||
test_user[0] == '\0' || test_pw[0] == '\0')
continue;
/* kill the newline */
if (test_pw[strlen(test_pw) - 1] == '\n')
test_pw[strlen(test_pw) - 1] = '\0';
if (strcmp(user, test_user) == 0)
{
/* we're outta here one way or the other. */
FreeFile(pw_file);
if (strcmp(crypt(password, test_pw), test_pw) == 0)
{
/* it matched. */
pfree(pw_file_fullname);
return STATUS_OK;
}
snprintf(PQerrormsg, ERROR_MSG_LENGTH,
"verify_password: password mismatch for '%s'.\n",
user);
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
pfree(pw_file_fullname);
return STATUS_ERROR;
}
}
snprintf(PQerrormsg, ERROR_MSG_LENGTH,
"verify_password: user '%s' not found in password file.\n",
user);
fputs(PQerrormsg, stderr);
pqdebug("%s", PQerrormsg);
pfree(pw_file_fullname);
return STATUS_ERROR;
}
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