GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/at/../../usr.sbin/cron/client.c Lines: 0 38 0.0 %
Date: 2017-11-13 Branches: 0 32 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: client.c,v 1.8 2015/11/12 21:12:05 millert Exp $	*/
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/* Copyright 1988,1990,1993,1994 by Paul Vixie
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 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
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 * Copyright (c) 1997,2000 by Internet Software Consortium, Inc.
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/un.h>
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#include <bitstring.h>		/* for structs.h */
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>		/* for structs.h */
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#include <unistd.h>
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#include "pathnames.h"
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#include "macros.h"
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#include "structs.h"
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#include "funcs.h"
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#include "globals.h"
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/* int in_file(const char *string, FILE *file, int error)
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 *	return TRUE if one of the lines in file matches string exactly,
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 *	FALSE if no lines match, and error on error.
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 */
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static int
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in_file(const char *string, FILE *file, int error)
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{
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	char line[MAX_TEMPSTR];
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	char *endp;
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	if (fseek(file, 0L, SEEK_SET))
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		return (error);
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	while (fgets(line, MAX_TEMPSTR, file)) {
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		if (line[0] != '\0') {
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			endp = &line[strlen(line) - 1];
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			if (*endp != '\n')
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				return (error);
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			*endp = '\0';
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			if (0 == strcmp(line, string))
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				return (TRUE);
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		}
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	}
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	if (ferror(file))
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		return (error);
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	return (FALSE);
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}
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/* int allowed(const char *username, const char *allow_file, const char *deny_file)
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 *	returns TRUE if (allow_file exists and user is listed)
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 *	or (deny_file exists and user is NOT listed).
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 *	root is always allowed.
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 */
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int
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allowed(const char *username, const char *allow_file, const char *deny_file)
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{
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	FILE	*fp;
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	int	isallowed;
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	if (strcmp(username, "root") == 0)
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		return (TRUE);
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	isallowed = FALSE;
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	if ((fp = fopen(allow_file, "r")) != NULL) {
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		isallowed = in_file(username, fp, FALSE);
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		fclose(fp);
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	} else if ((fp = fopen(deny_file, "r")) != NULL) {
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		isallowed = !in_file(username, fp, FALSE);
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		fclose(fp);
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	}
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	return (isallowed);
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}
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/* void poke_daemon(unsigned char cookie)
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 *	touches spool_dir and sends a poke to the cron daemon if running.
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 */
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void
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poke_daemon(unsigned char cookie)
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{
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	int sock = -1;
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	const char *cronsock = _PATH_CRON_SOCK;
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	struct stat sb;
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	struct sockaddr_un s_un;
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	if (stat(cronsock, &sb) != 0)
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		cronsock = _PATH_CRON_SOCK_OLD;	/* backwards compatibility */
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	bzero(&s_un, sizeof(s_un));
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	if (strlcpy(s_un.sun_path, cronsock, sizeof(s_un.sun_path)) >=
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	    sizeof(s_un.sun_path)) {
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		warnc(ENAMETOOLONG, "%s", cronsock);
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		return;
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	}
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	s_un.sun_family = AF_UNIX;
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	if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0 &&
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	    connect(sock, (struct sockaddr *)&s_un, sizeof(s_un)) == 0)
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		send(sock, &cookie, 1, MSG_NOSIGNAL);
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	else
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		warnx("warning, cron does not appear to be running");
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	if (sock >= 0)
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		close(sock);
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}