47 lines
1.7 KiB
Diff
47 lines
1.7 KiB
Diff
|
--- tcpdump-3.9.7/tcpdump.c.droproot 2006-09-19 21:07:57.000000000 +0200
|
||
|
|
+++ tcpdump-3.9.7/tcpdump.c 2007-07-24 16:15:54.000000000 +0200
|
||
|
|
@@ -958,6 +958,11 @@ main(int argc, char **argv)
|
||
|
|
(void)setsignal(SIGHUP, oldhandler);
|
||
|
|
#endif /* WIN32 */
|
||
|
|
|
||
|
|
+ if (Cflag != 0 && (getuid() == 0 || geteuid() == 0)) {
|
||
|
|
+ if (username || chroot_dir)
|
||
|
|
+ droproot(username, chroot_dir);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
if (pcap_setfilter(pd, &fcode) < 0)
|
||
|
|
error("%s", pcap_geterr(pd));
|
||
|
|
if (WFileName) {
|
||
|
|
@@ -999,7 +1004,7 @@ main(int argc, char **argv)
|
||
|
|
* We cannot do this earlier, because we want to be able to open
|
||
|
|
* the file (if done) for writing before giving up permissions.
|
||
|
|
*/
|
||
|
|
- if (getuid() == 0 || geteuid() == 0) {
|
||
|
|
+ if (Cflag == 0 && (getuid() == 0 || geteuid() == 0)) {
|
||
|
|
if (username || chroot_dir)
|
||
|
|
droproot(username, chroot_dir);
|
||
|
|
}
|
||
|
|
--- tcpdump-3.9.7/tcpdump.1.droproot 2007-07-24 16:15:54.000000000 +0200
|
||
|
|
+++ tcpdump-3.9.7/tcpdump.1 2007-07-24 16:15:54.000000000 +0200
|
||
|
|
@@ -264,6 +264,9 @@ have the name specified with the
|
||
|
|
flag, with a number after it, starting at 1 and continuing upward.
|
||
|
|
The units of \fIfile_size\fP are millions of bytes (1,000,000 bytes,
|
||
|
|
not 1,048,576 bytes).
|
||
|
|
+
|
||
|
|
+Note that when used with \fB\-Z\fR option (enabled by default), privileges
|
||
|
|
+are dropped before opening first savefile.
|
||
|
|
.TP
|
||
|
|
.B \-d
|
||
|
|
Dump the compiled packet-matching code in a human readable form to
|
||
|
|
@@ -592,7 +595,9 @@ Drops privileges (if root) and changes u
|
||
|
|
and the group ID to the primary group of
|
||
|
|
.IR user .
|
||
|
|
.IP
|
||
|
|
-This behavior can also be enabled by default at compile time.
|
||
|
|
+This behavior is enabled by default (\fB\-Z pcap\fR), and can
|
||
|
|
+be disabled by \fB\-Z root\fR.
|
||
|
|
+
|
||
|
|
.IP "\fI expression\fP"
|
||
|
|
.RS
|
||
|
|
selects which packets will be dumped.
|