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diff -ur sysklogd-1.4.1.orig/sysklogd.8 sysklogd-1.4.1/sysklogd.8
--- sysklogd-1.4.1.orig/sysklogd.8 Sun Mar 11 22:35:51 2001
+++ sysklogd-1.4.1/sysklogd.8 Mon Oct 8 07:20:31 2001
@@ -15,6 +15,9 @@
.I config file
]
.RB [ " \-h " ]
+.RB [ " \-i "
+.I IP address
+]
.RB [ " \-l "
.I hostlist
]
@@ -103,6 +106,13 @@
Specifying this switch on the command line will cause the log daemon to
forward any remote messages it receives to forwarding hosts which have been
defined.
+.TP
+.BI "\-i " "IP address"
+If
+.B syslogd
+is configured to accept log input from a UDP port, specify an IP address
+to bind to, rather than the default of INADDR_ANY. The address must be in
+dotted quad notation, DNS host names are not allowed.
.TP
.BI "\-l " "hostlist"
Specify a hostname that should be logged only with its simple hostname
diff -ur sysklogd-1.4.1.orig/syslogd.c sysklogd-1.4.1/syslogd.c
--- sysklogd-1.4.1.orig/syslogd.c Sun Mar 11 22:40:10 2001
+++ sysklogd-1.4.1/syslogd.c Mon Oct 8 07:24:41 2001
@@ -736,6 +736,8 @@
int NoHops = 1; /* Can we bounce syslog messages through an
intermediate host. */
+char *bind_addr = NULL; /* bind UDP port to this interface only */
+
extern int errno;
/* Function prototypes. */
@@ -829,7 +831,7 @@
funix[i] = -1;
}
- while ((ch = getopt(argc, argv, "a:dhf:l:m:np:rs:v")) != EOF)
+ while ((ch = getopt(argc, argv, "a:dhf:i:l:m:np:rs:v")) != EOF)
switch((char)ch) {
case 'a':
if (nfunix < MAXFUNIX)
@@ -846,9 +848,17 @@
case 'h':
NoHops = 0;
break;
+ case 'i':
+ if (bind_addr) {
+ fprintf(stderr, "Only one -i argument allowed, "
+ "the first one is taken.\n");
+ break;
+ }
+ bind_addr = optarg;
+ break;
case 'l':
if (LocalHosts) {
- fprintf (stderr, "Only one -l argument allowed," \
+ fprintf(stderr, "Only one -l argument allowed, "
"the first one is taken.\n");
break;
}
@@ -1175,7 +1185,7 @@
int usage()
{
fprintf(stderr, "usage: syslogd [-drvh] [-l hostlist] [-m markinterval] [-n] [-p path]\n" \
- " [-s domainlist] [-f conffile]\n");
+ " [-s domainlist] [-f conffile] [-i IP address]\n");
exit(1);
}
@@ -1217,15 +1227,22 @@
int fd, on = 1;
struct sockaddr_in sin;
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_port = LogPort;
+ if (bind_addr) {
+ if (!inet_aton(bind_addr, &sin.sin_addr)) {
+ logerror("syslog: not a valid IP address to bind to.");
+ return -1;
+ }
+ }
+
fd = socket(AF_INET, SOCK_DGRAM, 0);
if (fd < 0) {
logerror("syslog: Unknown protocol, suspending inet service.");
return fd;
}
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_port = LogPort;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, \
(char *) &on, sizeof(on)) < 0 ) {
logerror("setsockopt(REUSEADDR), suspending inet");
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