ZIP_FSEEK(3)

💖 ZIP_FSEEK(3) 💖

ok so bestie, this is the manual page for zip_fseek and zip_file_is_seekable — aka the "seek in file" girlies 💅 it lives in the Library Functions Manual, and no cap, it's shorter than your attention span but every line matters.

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✨ LIBRARY ✨

libzip (-lzip) 🎀 that's the one. link it and you're in.

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🌸 SYNOPSIS 🌸

#include <zip.h>

zip_int8_t
zip_fseek(zip_file_t *file, zip_int64_t offset, int whence);

int
zip_file_is_seekable(zip_file_t *file);

like… that's it. two functions. iconic behavior honestly 🦋

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💜 DESCRIPTION 💜

okay so the zip_fseek() function seeks to the specified offset relative to whence, just like fseek(3) does. same energy, different zip context ✨

but — and this is the part where you need to listen, bestie — zip_fseek only works on uncompressed (stored), unencrypted data. the way that compressed or encrypted data just says no 😭 when you call it on compressed or encrypted data it will return an error. not a vibe. it's giving "read the room."

the zip_file_is_seekable() function returns 1 if a file is seekable. that's the whole job. queen of knowing whether you can even do the thing 💅

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🔥 RETURN VALUES 🔥

• if successful, zip_fseek() returns 0 ✅
• otherwise, -1 is returned 💀

for zip_file_is_seekable():

• it returns 1 if a file is seekable and 0 if not 👑
• on an invalid argument, it returns -1 🙈

so like, 0 from zip_fseek = slay, -1 = not slay. and for zip_file_is_seekable, 1 = seekable, 0 = nope, -1 = you handed it something invalid fr fr.

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🌈 SEE ALSO 🌈

go read these too, bestie, they're all part of the same friend group 🫶

• libzip(3)
• zip_fclose(3)
• zip_file_get_error(3)
• zip_fopen(3)
• zip_fread(3)
• zip_ftell(3)

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⭐ HISTORY ⭐

• zip_fseek() was added in libzip 1.2.0 🎀
• zip_file_is_seekable() was added in libzip 1.9.0 🌸

growth! evolution! we love to see it ✨

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💖 AUTHORS 💖

• Dieter Baron <dillo@nih.at>
• Thomas Klausner <wiz@gatalith.at>

absolute legends, no notes 💅

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and that's the page, bestie 🦋 this came to you from Debian, dated September 11, 2024, for ZIP_FSEEK(3) — mwah, go forth and seek responsibly, ily 💜✨