PCAP_SET_BUFFER_SIZE(3)

💖 PCAP_SET_BUFFER_SIZE(3) 💖

okay bestie, welcome to the Library Functions Manual moment for pcap_set_buffer_size — it's giving tiny-but-iconic, and it's literally here to set the buffer size for a capture handle that is not-yet-activated. No cap. ✨

---

✨ NAME ✨

pcap_set_buffer_size — set the buffer size for a not-yet-activated capture handle 🎀

---

🌸 SYNOPSIS 🌸

include this header, bestie:

#include <pcap/pcap.h>

and here's the signature, exactly as it eats:

int pcap_set_buffer_size(pcap_t *p, int buffer_size);

---

🎀 DESCRIPTION 🎀

pcap_set_buffer_size() sets the buffer size that will be used on a capture handle when the handle is activated to buffer_size, and that number is in units of bytes. That's the whole vibe: you're prepping the buffer size on a handle that hasn't been activated yet, and buffer_size is measured in bytes. 💅

---

💅 RETURN VALUE 💅

pcap_set_buffer_size() returns 0 on success, or PCAP_ERROR_ACTIVATED if you called it on a capture handle that has already been activated. That's the vibe check: activated handle = nope, you get PCAP_ERROR_ACTIVATED. 😭

---

🦋 SEE ALSO 🦋

• pcap(3)
• pcap_create(3)
• pcap_activate(3)

---

mwah 💋 this little page is dated 3 January 2014, and the footer tag is PCAP_SET_BUFFER_SIZE(3) — slay, bye bestie! 🫶