libnet-macros.h(3)

📦

version 1.3 · 4 versions

1.3 · fedora 43, fedora 44, opensuse-leap 16.0 (latest)
1.2 · centos-stream 9
1.3 · centos-stream 10
1.3 · debian trixie, ubuntu questing, ubuntu resolute, ubuntu stonking

, in fedora 43, fedora 44, opensuse-leap 16.0

🎀 NAME 🎀

okay so bestie, welcome to libnet-macros.h — this is the Library Functions Manual page for libnet macros and symbolic constants. ✨ That's literally it, that's the whole assignment: it's the lil grab-bag of #defines the rest of libnet runs on. No cap. 💖

🌸 SYNOPSIS 🌸

💅 Macros

#define LIBNET_DONT_RESOLVE   0
#define LIBNET_RESOLVE   1
#define LIBNET_ON   0
#define LIBNET_OFF   1
#define IN6ADDR_ERROR_INIT
#define LIBNET_PR2   0
#define LIBNET_MAX_PACKET   0xffff
#define LIBNET_ERRBUF_SIZE   0x100
#define LIBNET_MAXOPTION_SIZE   0x28
#define for_each_context_in_cq(l)

🦋 Detailed Description 🦋

libnet macros and symbolic constants — yeah, that's the entire description. Short and iconic, we love that for her. 🫶

👑 Macro Definition Documentation 👑

`#define for_each_context_in_cq( l)`

Value:

for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next())

okay so this one is the lil glow-up loop — it hands you a way to iterate through the context queue of libnet contexts. 🌀 But bestie, listen: before you call this macro, you gotta make sure the queue is set using libnet_cq_head(). Do that first or the vibe check fails. 💅

`#define IN6ADDR_ERROR_INIT`

Value:

                                 { { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
                                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
                                0xff, 0xff } } }

IPv6 error code. That's it, that's the girl. 🌈

`#define LIBNET_DONT_RESOLVE 0`

This one's for libnet's name resolution functions, and what it's saying is: no DNS lookups, periodt. The IP address stays in numeric form, exactly as-is. 🚫🔍

`#define LIBNET_ERRBUF_SIZE 0x100`

The libnet error buffer is 256 bytes long. That's the whole flex. 📏

`#define LIBNET_MAX_PACKET 0xffff`

The biggest an IP packet can be — 65,535 bytes. Absolute unit. 😤🔥

`#define LIBNET_MAXOPTION_SIZE 0x28`

IP and TCP options can be up to 40 bytes long. That's the ceiling bestie, respect it. 🎀

`#define LIBNET_OFF 1`

Used several places, to specify "on" or "one". (yes, that's what it says — we are simply reporting the text, iykyk 💅)

`#define LIBNET_ON 0`

Used several places, to specify "on" or "one". Same energy as her sister above. 🫶

vibe check: LIBNET_ON is 0 and LIBNET_OFF is 1. Not me getting whiplash — that's just literally what the values are. Use the macros, not raw 0/1, and you'll be fine. 💖

`#define LIBNET_PR2 0`

Used for libnet_get_prand() to specify function disposition. 🎲

`#define LIBNET_RESOLVE 1`

This one's for libnet's name resolution functions, and it says a DNS lookup can be performed if needed to resolve the IP address to a canonical form. So like, it's allowed to go ask around. ✨

💜 SEE ALSO 💜

libnet(3)

🌟 AUTHORS 🌟

The original author of libnet is Mike D. Schiffman. 👑

libnet has been maintained and extensively enhanced since 2009 by Sam Roberts. 🛠️

It is maintained by the Libnet Developer Community at GitHub. 🌈

<https://github.com/libnet/libnet>

🙈 BUGS 🙈

Suggestions, bug reports/fixes, and pull requests, see:

<https://github.com/libnet/libnet/issues>

bestie if something's broken, tell them, they literally want to know. 🫶

📜 COPYRIGHT 📜

libnet is licensed under the 2-Clause BSD License. 🎀