89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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* Copyright 1991, 1993, Julianne Frances Haugh and Chip Rosenthal
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <config.h>
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#include "rcsid.h"
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RCSID ("$Id: hushed.c,v 1.5 2003/04/22 10:59:22 kloczek Exp $")
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#include <sys/types.h>
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#include <stdio.h>
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#include "defines.h"
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#include "prototypes.h"
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#include "getdef.h"
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#include <pwd.h>
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/*
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* hushed - determine if a user receives login messages
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*
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* Look in the hushed-logins file (or user's home directory) to see
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* if the user is to receive the login-time messages.
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*/
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int hushed (const struct passwd *pw)
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{
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char *hushfile;
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char buf[BUFSIZ];
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int found;
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FILE *fp;
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/*
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* Get the name of the file to use. If this option is not
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* defined, default to a noisy login.
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*/
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if ((hushfile = getdef_str ("HUSHLOGIN_FILE")) == NULL)
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return 0;
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/*
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* If this is not a fully rooted path then see if the
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* file exists in the user's home directory.
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*/
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if (hushfile[0] != '/') {
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snprintf (buf, sizeof (buf), "%s/%s", pw->pw_dir,
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hushfile);
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return (access (buf, F_OK) == 0);
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}
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/*
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* If this is a fully rooted path then go through the file
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* and see if this user is in there.
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*/
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if ((fp = fopen (hushfile, "r")) == NULL)
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return 0;
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for (found = 0; !found && fgets (buf, sizeof buf, fp);) {
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buf[strlen (buf) - 1] = '\0';
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found = !strcmp (buf,
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buf[0] ==
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'/' ? pw->pw_shell : pw->pw_name);
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}
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(void) fclose (fp);
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return found;
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}
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