The power of posix_spawn in your shell.
This is a command-line utility that wraps the posix_spawn function, exposing the extra process spawning functionality to your shell. It even supports all of Apple's private API's, such as spawning a process with ASLR disabled.
$ posixspawn
posixspawn -- The power of posix_spawn in your shell.
Version 2.0.0
Copyright (c) 2015-2022 Alexander O'Mara
Licensed under MPL 2.0 <http://mozilla.org/MPL/2.0/>
Usage: posixspawn [options...] [--] [args...]
options:
-h Show this help message.
-v Show version.
-f <flags> Pipe-delimited list of flags (see flags section below).
-p <path> Set the executable path separate from argv[0].
-w Wait for child process to complete before returning.
args:
The remaining arguments are passed to the child process.
flags:
The flags arguments is a pipe-delimited list of constants or integers.
A flag can be a string constant, a base-16 string, or a base-10 string.
Example argument:
"EXAMPLE_CONSTANT|0xF0|16"
String constants:
0x0001 POSIX_SPAWN_RESETIDS
0x0002 POSIX_SPAWN_SETPGROUP
0x0004 POSIX_SPAWN_SETSIGDEF
0x0008 POSIX_SPAWN_SETSIGMASK
0x0040 POSIX_SPAWN_SETEXEC
0x0080 POSIX_SPAWN_START_SUSPENDED
0x0400 POSIX_SPAWN_SETSID
0x4000 POSIX_SPAWN_CLOEXEC_DEFAULT
0x0800 _POSIX_SPAWN_RESLIDE
0x0400 POSIX_SPAWN_OSX_TALAPP_START
0x0400 POSIX_SPAWN_IOS_RESV1_APP_START
0x0800 POSIX_SPAWN_IOS_APPLE_DAEMON_START
0x1000 POSIX_SPAWN_IOS_APP_START
0x0800 POSIX_SPAWN_OSX_WIDGET_START
0x0800 POSIX_SPAWN_OSX_DBCLIENT_START
0x1000 POSIX_SPAWN_OSX_RESVAPP_START
0x0100 _POSIX_SPAWN_DISABLE_ASLR
0x2000 _POSIX_SPAWN_ALLOW_DATA_EXEC
Download the latest version from the releases section of this repository or build from source. Ensure it has executable file permissions and put the posixspawn binary in a directory in your PATH like /usr/local/bin.
The binary is compiled as a universal binary with x86_64 and arm64 architectures targeting OS X 10.6 and higher.
If you find a bug or have compatibility issues, please open a ticket under issues section for this repository.
Copyright (c) 2015-2022 Alexander O'Mara
Licensed under the Mozilla Public License, v. 2.0.
If this license does not work for you, feel free to contact me.