recvfrom on score

receive a message from a socket

sys_recvfrom(int fd, void *ubuf, size_t size, unsigned int flags, struct sockaddr *addr, int *addr_len)
number207 (0xcf)
abicommon
entry pointsys_recvfrom
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagerecvfrom(2)
sourceelixir.bootlin.com

Registers

registervalue
r27207, the syscall number
r4int fd
r5void *ubuf
r6size_t size
r7unsigned int flags
r8struct sockaddr *addr
r9int *addr_len
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/recvfrom?kernel=all