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From: arnold@emory.UUCP (Arnold D. Robbins {EUCC})
Newsgroups: net.bugs.4bsd
Subject: 4.3 /bin/passwd does not deal with /etc/shells properly
Message-ID: <1883@emory.UUCP>
Date: Wed, 22-Oct-86 23:28:50 EST
Article-I.D.: emory.1883
Posted: Wed Oct 22 23:28:50 1986
Date-Received: Mon, 27-Oct-86 00:52:09 EST
Organization: Math & Computer Science, Emory University, Atlanta
Lines: 68

[ My apologies if this has been seen before. If so, please ignore it. ]

Subject: 4.3 /bin/passwd does not deal with /etc/shells properly
Index:	/usr/src/bin/passwd.c 4.3BSD

Description:
	It is possible to request a shell that is valid as a new shell,
	but /bin/passwd will claim it is no good.
Repeat-By:
	Run passwd to request a new shell. Ask for a shell that is before
	your old shell in the list in /etc/shells.
Fix:
	Apply the following patch:

RCS file: RCS/passwd.c,v
retrieving revision 1.1
diff -c -r1.1 passwd.c
*** /tmp/,RCSt1007186	Wed Oct 22 18:05:08 1986
--- passwd.c	Mon Aug 11 11:59:11 1986
***************
*** 1,9 ****
  #ifndef lint
! static char *RCSid = "$Header: passwd.c,v 1.1 86/08/11 11:27:00 root Exp $";
  #endif
  
  /*
   * $Log:	passwd.c,v $
   * Revision 1.1  86/08/11  11:27:00  root
   * Initial revision
   * 
--- 1,12 ----
  #ifndef lint
! static char *RCSid = "$Header: passwd.c,v 1.2 86/08/11 11:58:50 root Locked $";
  #endif
  
  /*
   * $Log:	passwd.c,v $
+  * Revision 1.2  86/08/11  11:58:50  root
+  * Fixed a bug in change shell code which did not reset the shells file.
+  * 
   * Revision 1.1  86/08/11  11:27:00  root
   * Initial revision
   * 
***************
*** 328,333 ****
--- 331,337 ----
  	/*
  	 * Allow user to give shell name w/o preceding pathname.
  	 */
+ 	endusershell ();
  	if (u == 0) {
  		valid = newshell;
  	} else {
***************
*** 345,350 ****
--- 349,355 ----
  				break;
  		}
  	}
+ 	endusershell();		/* bug fix, was missing */
  	if (valid == 0) {
  		printf("%s is unacceptable as a new shell.\n",
  		    newshell);
-- 
Arnold Robbins
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