ip link add docker0 type bridgeip link set docker0 upip addr add 172.17.0.1/16 dev docker0docker -d -H 172.17.0.1:4242
stdio.h
to fit things in six character monocase externals, the 00022 * stdio code uses the prefix `__s' for stdio objects, typically 00023 * followed by a three-character attempt at a mnemonic. 00024 */ 00025 00026 #ifndef _STDIO_H_ 00027 #ifdef __cplusplus
https://www.gnu.org/software/m68hc11/examples/stdio_8h-source.html
Hello dear ELFsh & E2dbg user,
Try to read this README, its a precious information ressource for the ELF shell project .
For impatient people, this is a short list of provided features :
. Analysis on nearly all types of sections
. Cool disasm/resolving engine with libelfsh and libasm
. Raw read/write capability into ELF32 AND ELF64
objects
. Modify ELF header, PHT, SHT, GOT, CTORS, DTORS, .dynamic, PAX bits
. Modify symbol table, dynamic symbol table and relocation tables
. Remove or reconstruct SHT
. Real interactive and scripting modes
. Many kind of section injection [even working in non-exec environments]
. Control flow graphs with graphviz output (i386) : see modflow
. ELFsh Module support and ELFsh internal API
. Quiet output for tiny screens and shellcript friendship
. Experimental ET_EXEC relocation and remapping feature (INTEL)
. Full ET_REL injection into ET_EXEC (INTEL / SPARC / ALPHA)
. PLT infection (INTEL, SPARC, ALPHA, MIPS)
. ALTPLT technique (INTEL, SPARC, ALPHA)
https://github.com/thorkill/eresi
#! magic with a multi character constant #define SCRMAG '#!'
SCRMAG, and even added its own multi character constant for a variant of the magic:Find more information in the end notes [Demos].# define SCRMAG2 '/*#!'# define ARGPLACE "$*"
sys/i386/i386/exec_machdep.c) shows a readable way to construct the magic [...]
switch (magic) {
/* interpreters (note byte order dependency) */
case '#' | '!' << 8:
handler = exec_interpreter;
break;
case [...]
#! only as a possible extension: Shell Introduction
[...]
If the first line of a file of shell commands starts with the
characters #!, the results are unspecified.
The construct #! is reserved for implementations wishing to provide
that extension. A portable application cannot use #! as the first
line of a shell script; it might not be interpreted as a comment.
[...]
Command Search and Execution
[...]
This description requires that the shell can execute shell
scripts directly, even if the underlying system does not support
the common #! interpreter convention. That is, if file foo contains
shell commands and is executable, the following will execute foo:
./foo
There was a Working Group Resolution trying to define the mechanism.#!/bin/sh" on any Unix:#! was a great hack to make scripts look and feel like real executable binaries.#!? (list mostly courtesy of David Korn)#! is much smaller than the maximum path length$PATH is not searched for the interpreter#! line also accepts a relative path,#!interpreter is equivalent to #!./interpreter,#! script again#! line itself is varying#!$SHELLENOENT.This error can be misleading, because many shells then print the script name instead of the interpreter in its #! line:$cat script.sh #!/bin/notexistent $ ./script.sh ./script.sh: not foundbash since release 3 subsequently itself reads the first line and gives a diagnostic concerning the interpreter
bash: ./script.sh: /bin/notexistent: bad interpreter: No such file or directory
#! line is too long, at least three things can happen:E2BIG (IRIX, SCO OpenServer) or ENAMETOOLONG (FreeBSD, BIG-IP4.2, BSD/OS4.1)ENOEXEC. In some shells this results in a silent failure.#!interpreter [arg] and most often as #!/usr/bin/env interpreter. Additional arguments cannot be used. This repo catalogs single file workarounds mostly for fun but also slightly serious.#!/usr/bin/env interpreter