ELF32_OFFSCN(3)

💖 ELF32_OFFSCN(3) 💖

okay bestie, welcome to the Libelf Programmer's Manual — this one's elf32_offscn, and she's lowkey a little icon. let's get into it 🦋

✨ NAME ✨

elf32_offscn — grab yourself a section descriptor by file offset, specifically for a 32-bit ELF file. yes queen, offset-based lookup, we love to see it 💅

🌸 SYNOPSIS 🌸

#include <libelf.h>

Elf_Scn *elf32_offscn(Elf *elf, off_t offset);

🎀 DESCRIPTION 🎀

so the elf32_offscn function retrieves the section descriptor for the non-empty section at the specified file offset, inside the ELF32 object that elf points at. that's it, that's the job, and she does it flawlessly ✨

not me emphasizing non-empty — bestie, it literally only cares about non-empty sections. if it's empty, she's not looking at it, periodt 💀

🫶 PARAMETERS 🫶

• elf — an Elf pointer to the ELF object you wanna pull the section descriptor out of. that's your girl, that's who we're working with 💜
• offset — an off_t value, and it represents the file offset of the section whose descriptor you're trying to retrieve. so like, the coordinates of the section you want 📍

👑 RETURN VALUE 👑

elf32_offscn returns a pointer to the Elf_Scn of the non-empty section whose sh_offset matches offset. matching, slaying, iconic 🌈

but if an error happens? it returns NULL and sets an appropriate libelf error code. so like, check your return value, bestie, don't just assume 😭

💅 ATTRIBUTES 💅

for an explanation of the terms used in this section, go peek at attributes(7).

• Interface: elf32_offscn()
• Attribute: Thread safety
• Value: MT-Safe

MT-Safe meaning she's totally fine being called from multiple threads. main character energy that plays well with others 🧚

⭐ SEE ALSO ⭐

• elf64_offscn(3)
• libelf(3)
• elf(5)

go read those too, iykyk 📚

🍓 REPORTING BUGS 🍓

found a bug? don't be shy, report it to <elfutils-devel@sourceware.org> or hit up https://sourceware.org/bugzilla/. we do NOT gatekeep problems here 🫶

💀 HISTORY 💀

elf32_offscn first appeared in elfutils 0.112. and important tea: this elfutils libelf function may not be found in other libelf implementations. so like, don't assume every libelf out there has her — check first, fr fr 🙈

and that's the whole page, bestie! this one came from the Libelf manual, dated 2024-07-18 — mwah, sending you off with a kiss, go slay some ELF sections 💖✨🎀