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/*
* Copyright (c) 1990, 1992, 1993, 1994, 1995, 1996, 1997, 1998
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: file.c,v 1.22 98/02/09 16:35:17 leres Exp $ (LBL)";
#endif
/*
* file - arpwatch file i/o routines
*/
#include <sys/types.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/time.h>
#if __STDC__
struct mbuf;
struct rtentry;
#endif
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#ifdef HAVE_MEMORY_H
#include <memory.h>
#endif
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include "gnuc.h"
#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif
#include "arpwatch.h"
#include "ec.h"
#include "file.h"
int
file_loop(register FILE *f, file_process fn)
{
register int n;
register char *cp, *cp2, *h;
u_int32_t a;
register u_char *e;
register time_t t;
register struct hostent *hp;
char line[1024];
n = 0;
while (fgets(line, sizeof(line), f)) {
++n;
cp = line;
cp2 = cp + strlen(cp) - 1;
if (cp2 >= cp && *cp2 == '\n')
*cp2++ = '\0';
if (*cp == '#')
continue;
if ((cp2 = strchr(cp, '\t')) == NULL) {
syslog(LOG_ERR,
"file_loop(): syntax error #1 line %d", n);
continue;
}
/* Ethernet address comes first */
*cp2++ = '\0';
if ((e = str2e(cp)) == NULL) {
syslog(LOG_ERR,
"file_loop(): bad ether addr \"%s\" at line %d",
cp, n);
continue;
}
/* ip address is next */
cp = cp2;
if ((cp2 = strchr(cp, '\t')) != NULL)
*cp2++ = '\0';
if (!isdigit(*cp) || (int32_t)(a = inet_addr(cp)) == -1) {
if ((hp = gethostbyname(cp)) == NULL) {
syslog(LOG_ERR,
"file_loop(): bad hostname \"%s\" at line %d",
cp, n);
continue;
}
BCOPY(hp->h_addr, &a, 4);
}
/* timestamp and hostname are optional */
if (cp2 == NULL) {
t = 0;
h = NULL;
} else {
t = atoi(cp2);
h = strchr(cp2, '\t');
if (h != NULL) {
++h;
++cp2;
while (*cp2 != '\n' && *cp2 != '\t' &&
*cp2 != '\0')
++cp2;
*cp2 = '\0';
}
}
if (!(*fn)(a, e, t, h))
return(0);
}
return(1);
}
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