IPQ_ERRSTR(3)

💅 IPQ_ERRSTR(3) — like, the libipq error-handling glow-up

okay bestie, so this one lives in the Linux Programmer's Manual (section 3, the library-call girlies 🎀) and it's all about libipq and how it tells you something went wrong. no cap, it's short but it eats.

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🌸 NAME 🌸

ipq_errstr, ipq_perror — the libipq error handling routines, aka your two besties for finding out why things went sideways 💖

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✨ SYNOPSIS ✨

#include <linux/netfilter.h>
#include <libipq.h>

char *ipq_errstr(void);
void ipq_perror(const char *s);

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🦋 DESCRIPTION 🦋

ipq_errstr 🌈

so ipq_errstr hands you back a descriptive error message, and it builds that message off the current value of the internal ipq_errno variable. and like, every single libipq API function sets that internal variable whenever it fails — so it's always there holding the tea for you 🫶

ipq_perror 💅

ipq_perror is the one that prints. it prints an error message to stderr that corresponds to the current value of the internal ipq_error variable, and to the global errno variable (if that one's set). the message comes prefixed with the string s, exactly as your application supplies it. and if s is NULL, the error message gets prefixed with the string "ERROR" instead — iconic default behavior honestly 👑

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⭐ RETURN VALUE ⭐

ipq_errstr returns an error message as outlined above. that's the whole vibe ✨

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💀 BUGS 💀

None known. not a single one. she's flawless, periodt 🧚

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👑 AUTHOR 👑

James Morris <jmorris@intercode.com.au> — main character energy fr fr 💜

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🍓 COPYRIGHT 🍓

Copyright (c) 2000-2001 Netfilter Core Team.

Distributed under the GNU General Public License. (yes, GPL, we stan 🌸)

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🔥 SEE ALSO 🔥

• iptables(8)
• libipq(3)

go read those next, iykyk 🎀

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lowkey a reminder just in case: ipq_perror is printing the internal ipq_error variable up there, not ipq_errno — the manpage said it that way so i'm saying it that way 😭 don't @ me

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mwah 💋 that's the whole page — brought to you by the Linux iptables 1.2 girlies, dated 16 October 2001, still slaying in section 3 of the manual 🦋✨