Packages and Binaries:

0trace

The package is traceroute tool that can be run within an existing, open TCP connection, therefore bypassing some types of stateful packet filters with ease.

Installed size: 43 KB
How to install: sudo apt install 0trace

0trace.sh

root@kali:~# 0trace.sh -h
Usage: /usr/bin/0trace.sh iface target_ip [ target_port ]

sendprobe

root@kali:~# sendprobe -h
Usage: sendprobe src_ip dst_ip sport dport seq ack

usleep

Suspend execution for microsecond intervals

root@kali:~# man usleep
usleep(3)                   Library Functions Manual                  usleep(3)

NAME
       usleep - suspend execution for microsecond intervals

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <unistd.h>

       int usleep(useconds_t usec);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       usleep():
           Since glibc 2.12:
               (_XOPEN_SOURCE >= 500) && ! (_POSIX_C_SOURCE >= 200809L)
                   || /* glibc >= 2.19: */ _DEFAULT_SOURCE
                   || /* glibc <= 2.19: */ _BSD_SOURCE
           Before glibc 2.12:
               _BSD_SOURCE || _XOPEN_SOURCE >= 500

DESCRIPTION
       The  usleep()  function suspends execution of the calling thread for (at
       least) usec microseconds.  The sleep may be lengthened slightly  by  any
       system activity or by the time spent processing the call or by the gran-
       ularity of system timers.

RETURN VALUE
       The  usleep()  function returns 0 on success.  On error, -1 is returned,
       with errno set to indicate the error.

ERRORS
       EINTR  Interrupted by a signal; see signal(7).

       EINVAL usec is greater than or equal to 1000000.  (On systems where that
              is considered an error.)

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).
       +--------------------------------------------+---------------+---------+
       | Interface                                  | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       | usleep()                                   | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+

STANDARDS
       None.

HISTORY
       4.3BSD, POSIX.1-2001.  POSIX.1-2001  declares  it  obsolete,  suggesting
       nanosleep(2) instead.  Removed in POSIX.1-2008.

       On  the  original BSD implementation, and before glibc 2.2.2, the return
       type of this function is void.  The POSIX version returns int, and  this
       is also the prototype used since glibc 2.2.2.

       Only the EINVAL error return is documented by SUSv2 and POSIX.1-2001.

CAVEATS
       The interaction of this function with the SIGALRM signal, and with other
       timer  functions such as alarm(2), sleep(3), nanosleep(2), setitimer(2),
       timer_create(2), timer_delete(2), timer_getoverrun(2), timer_gettime(2),
       timer_settime(2), ualarm(3) is unspecified.

SEE ALSO
       alarm(2), getitimer(2), nanosleep(2), select(2), setitimer(2), sleep(3),
       ualarm(3), useconds_t(3type), time(7)

Linux man-pages 6.05.01            2023-07-20                         usleep(3)