segmentation fault in tcptraceroute

I'm quite new to Linux but I hope somebody will be kind enough to help
me. I'm running Fedora Core 2 kernel 2.6.5-1.358, and I've installed
tcptraceroute from the static rpm I got on the main web site. If I
type "tcptraceroute" without any parameters at the command line, it
gives me the help list. But if I add any parameters, I get a
segmentation fault (that's all it says). Anybody know how I can fix
it?

"Alex Bransky" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om

> I'm quite new to Linux but I hope somebody will be kind enough to help
> me. I'm running Fedora Core 2 kernel 2.6.5-1.358, and I've installed
> tcptraceroute from the static rpm I got on the main web site. If I
> type "tcptraceroute" without any parameters at the command line, it
> gives me the help list. But if I add any parameters, I get a
> segmentation fault (that's all it says). Anybody know how I can fix
> it?

You should post the exact command and parameters that you entered at the
command line, so that people can see if you are invoking it correctly.

Then, you can type (e.g.):

strace tcptraceroute www.google.com

and see at what operation the failure occurs.

tony

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I've tried:

tcptraceroute example1.com
tcptraceroute example1.com 3101

Both cause a segmentation fault. Here's what I got from strace:

execve("/usr/sbin/tcptraceroute", ["tcptraceroute", "example1.com",
"3101"], [/* 33 vars */]) = 0
fcntl64(0, F_GETFD) = 0
fcntl64(1, F_GETFD) = 0
fcntl64(2, F_GETFD) = 0
uname({sys="Linux", node="localhost.localdomain", ...}) = 0
geteuid32() = 0
getuid32() = 0
getegid32() = 0
getgid32() = 0
brk(0) = 0x80cf000
brk(0x80cf020) = 0x80cf020
brk(0x80d0000) = 0x80d0000
getuid32() = 0
geteuid32() = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
ioctl(3, SIOCGIFCONF, 0xfefff868) = 0
ioctl(3, SIOCGIFADDR, 0xfefff870) = 0
ioctl(3, SIOCGIFFLAGS, 0xfefff870) = 0
ioctl(3, SIOCGIFADDR, 0xfefff870) = 0
ioctl(3, SIOCGIFFLAGS, 0xfefff870) = 0
gettimeofday({1097683042, 365220}, NULL) = 0
getpid() = 3085
open("/etc/resolv.conf", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=106, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x55001000
read(4, "; generated by /sbin/dhclient-sc"..., 4096) = 106
read(4, "", 4096) = 0
close(4) = 0
munmap(0x55001000, 4096) = 0
socket(PF_FILE, SOCK_STREAM, 0) = 4
connect(4, {sa_family=AF_FILE, path="/var/run/.nscd_socket"}, 110) =
-1 ENOENT (No such file or directory)
close(4) = 0
open("/etc/nsswitch.conf", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=1686, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x55001000
read(4, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1686
read(4, "", 4096) = 0
close(4) = 0
munmap(0x55001000, 4096) = 0
open("/etc/ld.so.cache", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=43977, ...}) = 0
old_mmap(NULL, 43977, PROT_READ, MAP_PRIVATE, 4, 0) = 0x55001000
close(4) = 0
open("/lib/libnss_files.so.2", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\ 33\0\000"...,
1024) = 1024
fstat64(4, {st_mode=S_IFREG|0755, st_size=50944, ...}) = 0
old_mmap(NULL, 45724, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) =
0x5500c000
mprotect(0x55016000, 4764, PROT_NONE) = 0
old_mmap(0x55016000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED, 4, 0x9000) = 0x55016000
close(4) = 0
open("/lib/tls/libc.so.6", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\3 00\353"...,
1024) = 1024
fstat64(4, {st_mode=S_IFREG|0755, st_size=1455084, ...}) = 0
brk(0x80d1000) = 0x80d1000
old_mmap(0x93a000, 1158124, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) =
0x93a000
mprotect(0xa4f000, 23532, PROT_NONE) = 0
old_mmap(0xa4f000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED,
4, 0x115000) = 0xa4f000
old_mmap(0xa53000, 7148, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa53000
close(4) = 0
open("/lib/ld-linux.so.2", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\3 00\27"...,
1024) = 1024
fstat64(4, {st_mode=S_IFREG|0755, st_size=106892, ...}) = 0
old_mmap(0x921000, 91340, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) =
0x921000
mprotect(0x936000, 5324, PROT_NONE) = 0
old_mmap(0x936000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED,
4, 0x14000) = 0x936000
close(4) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++



>
> You should post the exact command and parameters that you entered at the
> command line, so that people can see if you are invoking it correctly.
>
> Then, you can type (e.g.):
>
> strace tcptraceroute www.google.com
>
> and see at what operation the failure occurs.
>
> tony