Files
RedBear-OS/recipes/tests/sys_socket/recvfrom.c
T
vasilito b9874d0941 feat: USB storage read/write proof + full Red Bear OS tree sync
Add redbear-usb-storage-check in-guest binary that validates USB mass
storage read and write I/O: discovers /scheme/disk/ devices, writes a
test pattern to sector 2048, reads it back, verifies match, restores
original content. Updates test-usb-storage-qemu.sh with write-proof
verification step.

Includes all accumulated Red Bear OS work: kernel patches, relibc
patches, driver infrastructure, DRM/GPU, KDE recipes, firmware,
validation tooling, build system hardening, and documentation.
2026-05-03 23:03:24 +01:00

57 lines
1.6 KiB
C

#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include "test_helpers.h"
int main(void)
{
int status;
int server_fd = socket(AF_INET, SOCK_DGRAM, 0);
ERROR_IF(socket, server_fd, == -1);
struct sockaddr_in addr =
{
.sin_family = AF_INET,
.sin_addr = { .s_addr = htonl(0x7F000001 /* 127.0.0.1 */) },
.sin_port = htons(0),
};
struct sockaddr* saddr = (struct sockaddr*)&addr;
socklen_t addr_len = sizeof(struct sockaddr_in);
status = bind(server_fd, saddr, addr_len);
ERROR_IF(bind, status, == -1);
status = getsockname(server_fd, saddr, &addr_len);
ERROR_IF(getsockname, status, == -1);
int client_fd = socket(AF_INET, SOCK_DGRAM, 0);
ERROR_IF(socket, client_fd, == -1);
status = connect(client_fd, saddr, addr_len);
ERROR_IF(connect, status, == -1);
struct sockaddr_in name;
struct sockaddr* sname = (struct sockaddr*)&name;
socklen_t name_len = sizeof(struct sockaddr_in);
status = getsockname(client_fd, sname, &name_len);
ERROR_IF(getsockname, status, == -1);
char *c = "bar";
status = sendto(server_fd, c, 4, 0, sname, name_len);
ERROR_IF(sendto, status, == -1);
struct sockaddr_in from;
struct sockaddr* sfrom = (struct sockaddr*)&from;
socklen_t from_len = sizeof(struct sockaddr_in);
char x[4];
ssize_t amount = recvfrom(client_fd, x, 4, 0, sfrom, &from_len);
ERROR_IF(recvfrom, amount, == -1);
UNEXP_IF(recvfrom, amount, != 4);
status = strcmp(c, x);
printf("sendto %s\n", c);
printf("recvfrom %s\n", x);
UNEXP_IF(strcmp, status, != 0);
}