78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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* SPDX-FileCopyrightText: 1991 - 1993, Julianne Frances Haugh
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* SPDX-FileCopyrightText: 1991 - 1993, Chip Rosenthal
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* SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
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* SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
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* SPDX-FileCopyrightText: 2008 - 2010, Nicolas François
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <config.h>
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#ident "$Id$"
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#include <sys/types.h>
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#include <stdio.h>
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#include <pwd.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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/*
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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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bool hushed (const char *username)
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{
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struct passwd *pw;
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const char *hushfile;
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char buf[BUFSIZ];
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bool 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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hushfile = getdef_str ("HUSHLOGIN_FILE");
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if (NULL == hushfile) {
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return false;
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}
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pw = getpwnam (username);
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if (NULL == pw) {
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return false;
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}
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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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(void) snprintf (buf, sizeof (buf), "%s/%s", pw->pw_dir, 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, or its shell is in there.
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*/
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fp = fopen (hushfile, "r");
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if (NULL == fp) {
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return false;
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}
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for (found = false; !found && (fgets (buf, (int) sizeof buf, fp) == buf);) {
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buf[strcspn (buf, "\n")] = '\0';
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found = (strcmp (buf, pw->pw_shell) == 0) ||
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(strcmp (buf, pw->pw_name) == 0);
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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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