macOS
Homebrewverified · 100%
brew install zloglocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install zlogMacPorts ports tree · devel/zlog/Portfile · source: api.github.com
brew
Install zlog with Homebrew, apt, MacPorts, Nix
High-performance C logging library. Version 1.2.18 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install libzlog-devDebian stable package indexes · libzlog-dev · source: deb.debian.org
Nixverified · 92%
nix profile install nixpkgs#zlognixpkgs package indexes · pkgs/by-name/zl/zlog/package.nix · source: api.github.com
overview
Package summary
High-performance C logging library
Project links
Commands and aliases
- zlog-chk-conf
history
Project history and usage
zlog is a pure-C logging library by Hardy Simpson, written to provide application-style logging features for C programs without external dependencies beyond POSIX and C runtime facilities.
Project history
The GitHub repository was created in 2011. The README and user's guide explain the author's motivation directly: printf is hard to redirect or reformat, syslog is oriented toward system logging, and C lacked a convenient logging library comparable to logback or log4cxx for application developers.
The library's model centers on categories, formats, and rules. That makes it closer to configurable application logging frameworks than to a tiny header-only debug macro.
Adoption history
Public source material is thin, but zlog persisted as a packaged C library because it solved a narrow systems-programming need: configurable, thread-aware logging with file rotation, multiple destinations, and a small dependency footprint.
How it is used
A C program initializes zlog with a configuration file, obtains a category, writes messages through zlog macros or functions, and finalizes the library during shutdown. Configuration rules decide level, destination, and format, so logging behavior can change without recompiling the application.
The bundled zlog-chk-conf utility is useful for checking configuration files before an application relies on them.
Why package nerds care
zlog is package-nerd glue: not flashy, but exactly the sort of small C library that shows up when older or portable software needs structured logging without adopting a large framework. Its documentation is unusually explicit about why it exists and what it replaces.
Timeline
- 2011-12-27: The HardySimpson/zlog GitHub repository is created.
- 2010s: Documentation presents zlog as a pure-C alternative to printf, syslog, and log4c-style approaches for application logging.
- 2020s: zlog remains packaged as a small C logging library for Unix-like development environments.
Related projects
- log4c, log4cxx, logback, syslog, and smaller C logging libraries such as log.c are adjacent points in the logging-library design space.
Sources
security posture
Risk level: green
library-like package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- library-like package without higher-risk signals
Signals
- metadata:library-like
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 10 platform targets.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
zlog-chk-conf | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version1.2.18
manager updated
local dataok
upstreamcurrent
latest detected1.2.18
https://github.com/HardySimpson/zlog
- infoNo package-manager update timestamp was available.low confidence
install metadata
Package metadata
| Package key | brew:zlog |
|---|---|
| Version | 1.2.18 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/zlog |
| Homepage | https://github.com/HardySimpson/zlog |
| Repository | https://github.com/HardySimpson/zlog |
| Upstream docs | https://github.com/HardySimpson/zlog#readme |
| License | Apache-2.0 |
| Source archive | https://github.com/HardySimpson/zlog/archive/refs/tags/1.2.18.tar.gz |
| Bottle | available (on arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | zlog |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
libzlog-dev 1.2.18-1+b1
mutli features pure C logging library -- development files
https://github.com/HardySimpson/zlog
sudo apt install libzlog-dev- Section: libdevel
- Architecture: amd64
- Source Package: zlog
- 1 dependencies
- normalized package name match
- Matched by: Zlog
Debian apt95%
libzlog1 1.2.18-1+b1
mutli features pure C logging library -- runtime library
https://github.com/HardySimpson/zlog
sudo apt install libzlog1- Section: libs
- Architecture: amd64
- Source Package: zlog
- 1 dependencies
- normalized package name match
- Matched by: Zlog
Nix95%
zlog
nix profile install nixpkgs#zlog- normalized package name match
- Matched by: Zlog
MacPorts95%
zlog
sudo port install zlog- normalized package name match
- Matched by: Zlog
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment