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/*
Copyright (C) 2001,2002 Bernhard R. Link <brlink@debian.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
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.
Please tell me, if you find errors or mistakes.
Based on parts of the GNU C Library:
Common code for file-based database parsers in nss_files module.
Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
*/
#define _GNU_SOURCE 1
#include <stdlib.h>
#include <stdio.h>
#include <nss.h>
#include <string.h>
#include <shadow.h>
#include <time.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include "s_config.h"
enum nss_status _nss_extrausers_getspnam_r (const char *, struct spwd *,char *, size_t,int *);
enum nss_status _nss_extrausers_getspnam_r (const char *name, struct spwd *spw,
char *buffer, size_t buflen,int * errnop)
{
#define SANEQUIT {funlockfile(stream);fclose(stream);}
#define CHECKCOLON if(*p != ':' ) { \
SANEQUIT \
*errnop = 0; \
return NSS_STATUS_UNAVAIL; \
} else { \
*(p++) = '\0'; \
}
#define TOCOLON(p,h) { while( *p && *p != ':' ) p++; CHECKCOLON }
FILE *stream;
char *p,*h;
char *t_namp,*t_pwdp;
long int t_lstchg,t_min,t_max,t_warn,t_inact,t_expire;
unsigned long int t_flag;
if ( spw == NULL || name == NULL )
{
*errnop = EPERM;
return NSS_STATUS_UNAVAIL;
}
stream = fopen(SHADOWFILE,"r");
if( stream == NULL ) {
*errnop = errno;
return NSS_STATUS_UNAVAIL;
}
flockfile(stream);
while( 1 ) {
buffer[buflen - 1] = '\xff';
p = fgets_unlocked(buffer,buflen,stream);
if( p == NULL ) {
if( feof_unlocked(stream) ) {
SANEQUIT
*errnop = ENOENT;
return NSS_STATUS_NOTFOUND;
} else {
*errnop = errno;
SANEQUIT
return NSS_STATUS_UNAVAIL;
}
}
h = index(p,'\n');
if( buffer[buflen - 1] != '\xff' || h == NULL ) {
SANEQUIT
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
while( isspace(*h) && h >= p) {
*h = '\0';
h--;
}
/* extract name */
while (isspace (*p))
++p;
t_namp = p;
TOCOLON(p,h);
if( name && strcmp(name,t_namp)!=0 )
continue;
/* passwd */
while (isspace (*p))
++p;
t_pwdp = p;
TOCOLON(p,h);
/* extract day of last changes */
t_lstchg = strtol(p,&h,10);
p=h;
CHECKCOLON;
p = ++h;
/* extract min */
t_min = strtol(p,&h,10);
p=h;
CHECKCOLON;
/* extract max */
t_max = strtol(p,&h,10);
p=h;
CHECKCOLON;
/* extract days of warning */
t_warn = strtol(p,&h,10);
p=h;
CHECKCOLON;
/* extract days of inactivity */
t_inact = strtol(p,&h,10);
p=h;
CHECKCOLON;
/* extract day of expire */
t_expire = strtol(p,&h,10);
p=h;
CHECKCOLON;
/* extract reserved flags */
t_flag = strtoul(p,&h,10);
if( *h != '\0' ) {
SANEQUIT
*errnop = 0;
return NSS_STATUS_UNAVAIL;
}
SANEQUIT
*errnop = 0;
spw->sp_namp = t_namp;
spw->sp_pwdp = t_pwdp;
spw->sp_lstchg = t_lstchg;
spw->sp_min = t_min;
spw->sp_max = t_max;
spw->sp_warn = t_warn;
spw->sp_inact = t_inact;
spw->sp_expire = t_expire;
spw->sp_flag = t_flag;
return NSS_STATUS_SUCCESS;
}
}
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