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/*
* Copyright (c) 1985 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)$Id: getusershell.c,v 1.5 1997/12/21 23:03:01 sob beta16 sob $";
#endif /* LIBC_SCCS and not lint */
#ifndef _AIX
#include "../src/config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#define SHELLS "/etc/shells"
/*
* Do not add local shells here. They should be added in /etc/shells
*/
static char *okshells[] =
{"/bin/sh", "/bin/csh", 0};
static char **shells,
*strings;
static char **curshell = NULL;
static char **initshells();
/*
* Get a list of shells from SHELLS, if it exists.
*/
char *
#ifdef __STDC__
getusershell(void)
#else
getusershell()
#endif
{
char *ret;
if (curshell == NULL)
curshell = initshells();
ret = *curshell;
if (ret != NULL)
curshell++;
return(ret);
}
void
#ifdef __STDC__
endusershell(void)
#else
endusershell()
#endif
{
if (shells != NULL)
free((char *) shells);
shells = NULL;
if (strings != NULL)
free(strings);
strings = NULL;
curshell = NULL;
}
void
#ifdef __STDC__
setusershell(void)
#else
setusershell()
#endif
{
curshell = initshells();
}
static char **
#ifdef __STDC__
initshells(void)
#else
initshells()
#endif
{
register char **sp,
*cp;
register FILE *fp;
struct stat statb;
if (shells != NULL)
free((char *) shells);
shells = NULL;
if (strings != NULL)
free(strings);
strings = NULL;
if ((fp = fopen(SHELLS, "r")) == (FILE *) 0)
return (okshells);
if (fstat(fileno(fp), &statb) == -1) {
(void) fclose(fp);
return (okshells);
}
if ((strings = (char *) malloc((unsigned) statb.st_size + 1)) == NULL) {
(void) fclose(fp);
return (okshells);
}
shells = (char **) calloc((unsigned) statb.st_size / 3, sizeof(char *));
if (shells == NULL) {
(void) fclose(fp);
free(strings);
strings = NULL;
return (okshells);
}
sp = shells;
cp = strings;
while (fgets(cp, MAXPATHLEN + 1, fp) != NULL) {
while (*cp != '#' && *cp != '/' && *cp != '\0')
cp++;
if (*cp == '#' || *cp == '\0')
continue;
*sp++ = cp;
while (!isspace(*cp) && *cp != '#' && *cp != '\0')
cp++;
*cp++ = '\0';
}
*sp = (char *) 0;
(void) fclose(fp);
return (shells);
}
#else /* it is AIX */
/* emulate getusershell for AIX */
#include <userconf.h>
#include <usersec.h>
static int GETUSERSHELL_opened=0;
static char **GETUSERSHELL_shells;
static int GETUSERSHELL_current;
char *getusershell()
{
static char *val;
static char *list;
static char *retVal;
int n;
if (!GETUSERSHELL_opened)
{
if(getconfattr(SC_SYS_LOGIN,SC_SHELLS,(void *)&val,SEC_LIST))
{
return(NULL);
}
GETUSERSHELL_opened = 1;
GETUSERSHELL_current = 0;
list = val;
}
if ( (list != NULL) && (*list != NULL) )
{
while (list && *list)
list++;
*list = '\0';
retVal = val;
list++;
val = list;
}
else
retVal = NULL;
return(retVal);
}
void setusershell()
{
GETUSERSHELL_opened = 0;
}
void endusershell()
{
GETUSERSHELL_opened = 0;
}
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.