Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

122 lines (106 sloc) 3.381 kb
/*
*****************************************************************************
*
* File: fko_user.c
*
* Author: Damien S. Stuart
*
* Purpose: Set/Get the current username.
*
* Copyright 2009-2010 Damien Stuart (dstuart@dstuart.org)
*
* License (GNU Public License):
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*****************************************************************************
*/
#include "fko_common.h"
#include "fko.h"
#ifdef WIN32
#include <getlogin.h>
#endif
/* Get or Set the username for the fko context spa data.
*/
int
fko_set_username(fko_ctx_t ctx, const char *spoof_user)
{
char *username = NULL;
/* Must be initialized
*/
if(!CTX_INITIALIZED(ctx))
return FKO_ERROR_CTX_NOT_INITIALIZED;
/* If spoof_user was not passed in, check for a SPOOF_USER enviroment
* variable. If it is set, use its value.
*/
if(spoof_user != NULL && strnlen(spoof_user, MAX_SPA_USERNAME_SIZE))
username = (char*)spoof_user;
else
username = getenv("SPOOF_USER");
/* Try to get the username from the system.
*/
if(username == NULL)
{
/* Since we've already tried looking at an env variable, try
* LOGNAME next (and the cuserid() man page recommends this)
*/
if((username = getenv("LOGNAME")) == NULL)
{
#ifdef _XOPEN_SOURCE
/* cuserid will return the effective user (i.e. su or setuid).
*/
username = cuserid(NULL);
#else
username = getlogin();
#endif
/* if we still didn't get a username, fall back
*/
if((username = getenv("USER")) == NULL)
{
username = strdup("NO_USER");
if(username == NULL)
return(FKO_ERROR_MEMORY_ALLOCATION);
}
}
}
/* Truncate the username if it is too long.
*/
if(strnlen(username, MAX_SPA_USERNAME_SIZE) == MAX_SPA_USERNAME_SIZE)
*(username + MAX_SPA_USERNAME_SIZE - 1) = '\0';
/* Just in case this is a subsquent call to this function. We
* do not want to be leaking memory.
*/
if(ctx->username != NULL)
free(ctx->username);
ctx->username = strdup(username);
ctx->state |= FKO_DATA_MODIFIED;
if(ctx->username == NULL)
return(FKO_ERROR_MEMORY_ALLOCATION);
return(FKO_SUCCESS);
}
/* Return the current username for this fko context.
*/
int
fko_get_username(fko_ctx_t ctx, char **username)
{
/* Must be initialized
*/
if(!CTX_INITIALIZED(ctx))
return(FKO_ERROR_CTX_NOT_INITIALIZED);
*username = ctx->username;
return(FKO_SUCCESS);
}
/***EOF***/
Jump to Line
Something went wrong with that request. Please try again.