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/*
* SPDX-FileCopyrightText: 1991 - 1993, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1991 - 1993, Chip Rosenthal
* SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2008 - 2010, Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#ident "$Id$"
#include <sys/types.h>
#include <stdio.h>
#include <pwd.h>
#include "defines.h"
#include "prototypes.h"
#include "getdef.h"
/*
* hushed - determine if a user receives login messages
*
* Look in the hushed-logins file (or user's home directory) to see
* if the user is to receive the login-time messages.
*/
bool hushed (const char *username)
{
struct passwd *pw;
const char *hushfile;
char buf[BUFSIZ];
bool found;
FILE *fp;
/*
* Get the name of the file to use. If this option is not
* defined, default to a noisy login.
*/
hushfile = getdef_str ("HUSHLOGIN_FILE");
if (NULL == hushfile) {
return false;
}
pw = getpwnam (username);
if (NULL == pw) {
return false;
}
/*
* If this is not a fully rooted path then see if the
* file exists in the user's home directory.
*/
if (hushfile[0] != '/') {
(void) snprintf (buf, sizeof (buf), "%s/%s", pw->pw_dir, hushfile);
return (access (buf, F_OK) == 0);
}
/*
* If this is a fully rooted path then go through the file
* and see if this user, or its shell is in there.
*/
fp = fopen (hushfile, "r");
if (NULL == fp) {
return false;
}
for (found = false; !found && (fgets (buf, (int) sizeof buf, fp) == buf);) {
buf[strcspn (buf, "\n")] = '\0';
found = (strcmp (buf, pw->pw_shell) == 0) ||
(strcmp (buf, pw->pw_name) == 0);
}
(void) fclose (fp);
return found;
}
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