cfmakeraw(3)

💖 NAME 💖

cfmakeraw — set terminal raw mode ✨

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📚 LIBRARY 📚

Standard C library (libc, -lc) 🫶

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🎀 SYNOPSIS 🎀

#define _DEFAULT_SOURCE  /* See feature_test_macros(7) */
#include <termios.h>

void cfmakeraw(struct termios *termios_p);

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🌸 DESCRIPTION 🌸

okay bestie, listen. cfmakeraw() takes your terminal and sets it to something like the "raw" mode from the old Version 7 terminal driver. it's giving vintage, it's giving OG. 🕰️✨

what does raw actually mean tho? three things, and they're all kinda unhinged:

• input shows up character by character — no more waiting around for a whole line like it's buffering your texts
• echoing is disabled — you type, it doesn't type back at you 💀
• all special processing of terminal input and output characters is disabled — the terminal stops being a little control freak about your keystrokes

and here's exactly what it does to your termios struct, no cap:

termios_p->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
                | INLCR | IGNCR | ICRNL | IXON);
termios_p->c_oflag &= ~OPOST;
termios_p->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
termios_p->c_cflag &= ~(CSIZE | PARENB);
termios_p->c_cflag |= CS8;

like i said. it's clearing flags left and right. iconic behavior, honestly. 💅

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🔥 RETURN VALUE 🔥

• 0 — on success. slay, we love a win. 🎉
• -1 — on failure, and it sets errno to indicate the error. sad girl hours 😭

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👑 ATTRIBUTES 👑

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

• cfmakeraw() — Thread safety: MT-Safe

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🌈 STANDARDS 🌈

BSD.

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🦋 HISTORY 🦋

BSD. (yes, again. it's old money, bestie. ✨)

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🫶 SEE ALSO 🫶

• termios(3type)
• termios(7)

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that's the whole page, babe — brought to you by Linux man-pages 6.20, dated 2026-07-02. mwah, go write something cursed with raw mode 💜