ELF_ERRMSG(3)

💖 ELF_ERRMSG — bestie, let's read ur errors 💖

okay so this is the libelf page for elf_errmsg, and honestly? it's the friend who translates cryptic library meltdowns into actual human words. no cap. 🫶

✨ NAME ✨

elf_errmsg — return the error message string for a given libelf error code. yes queen, it hands u the little explanatory sentence. 💅

✨ SYNOPSIS ✨

#include <libelf.h>

const char *elf_errmsg(int err);

✨ DESCRIPTION ✨

so the elf_errmsg function retrieves a human-readable string that corresponds to the most recent error code set by a libelf library function. like, libelf messed up somewhere, and this is how u find out what it's sulking about. 😭

now here's the tea on the err situation:

• if err is 0, the function returns the error message for the most recent error code. very "what just happened" energy.
• if err is non-zero, the function returns the error message for the specified error code. like, u already know the number, ur just here for the translation. 🦋

✨ PARAMETERS ✨

• err — an int value specifying the error code. and it's giving nuance, so listen up:
  • if this value is 0, the function returns the error message for the most recent error — or NULL if none occurred. 💀
  • if this value is -1, the behaviour is similar to the previous case, except that a legal string will be returned instead of NULL. so basically, -1 never leaves u hanging with a NULL. iconic behaviour honestly. 👑

✨ RETURN VALUE ✨

elf_errmsg returns a string containing the error message. 🎀

and if there is no corresponding error message, it returns NULL. yeah. sometimes the void just stares back. 🙈

✨ SEE ALSO ✨

• elf_errno(3)

✨ REPORTING BUGS ✨

found a bug? don't be shy, report it to <elfutils-devel@sourceware.org> or go straight to https://sourceware.org/bugzilla/. the devs wanna know, fr fr. 🐛✨

okay that's the whole page!! this was the Libelf Programmer's Manual, last touched 2024-06-24, page ELF_ERRMSG(3). go forth and read ur error strings, bestie. slay. 🌈💜