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Date:      Mon, 2 Sep 2002 00:47:01 -0700 (PDT)
From:      Jay Chuang <jay@embeddedos.com.tw>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   i386/42315: chpass bug 
Message-ID:  <200209020747.g827l1ga082170@www.freebsd.org>
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>Number:         42315
>Category:       i386
>Synopsis:       chpass bug
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Sep 02 00:50:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Jay Chuang
>Release:        4.6.2
>Organization:
STEPTECH
>Environment:
FreeBSD jay.eflash.com.tw 4.6.2-RELEASE FreeBSD 4.6.2-RELEASE #7: Thu Aug 29 14:10:12 CST 2002     rd@jay.eflash.com.tw:/usr/src/sys/compile/KEVIN  i386

>Description:
      chpass bug 
>How-To-Repeat:
bug 1: source /usr/src/usr.sbin/vipw/pw_util.c
int
pw_tmp()
{
        static char path[MAXPATHLEN];
        int fd;
        char *p;

        if ((p = strrchr(masterpasswd, '/')) == NULL)
                strcpy(path, "pw.XXXXXX");
        else
                if (snprintf(path, sizeof path, "%.*s/pw.XXXXXX",
                    (int)(p - masterpasswd), masterpasswd) >= sizeof path)
                        errx(1, "%s: path too long", masterpasswd);
        if ((fd = mkstemp(path)) == -1)
                err(1, "%s", path);
        tempname = path;
        return (fd);
}

bug 2 : source  /usr/src/usr.bin/chpass/chpass.c

    210         if (op == LOADENTRY) {
    211                 if (uid)
    212                         baduser();
    213                 pw = &lpw;
    214                 if (!pw_scan(arg, pw))
    215                         exit(1);
    216         }

>Fix:
bug 1 Fix : change function strchr to strrch
bug 1 Fix : add "old_pw = *pw;" after line 215 
>Release-Note:
>Audit-Trail:
>Unformatted:

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