Luna/kernel/src/fs/devices/Version.cpp

#include "fs/devices/Version.h"
#include "config.h"
#include "std/stdio.h"
#include "std/stdlib.h"
#include "std/string.h"

VFS::Node* VersionDevice::create_new()
{
    VFS::Node* dev = new VFS::Node;
    dev->read_func = VersionDevice::read;
    dev->inode = 0;
    dev->length = strlen(moon_version()) + 5;
    dev->type = VFS_FILE;
    dev->flags = 0;
    strncpy(dev->name, "version", sizeof(dev->name));
    return dev;
}

ssize_t VersionDevice::read(VFS::Node* node, size_t offset, size_t size, char* buffer)
{
    if (!node) return -1;
    if (offset > node->length) return -1;
    if (offset + size > node->length) { size = node->length - offset; }
    snprintf(buffer, size + 1, "moon %s", moon_version()); // FIXME: Support offseting this read
    return (ssize_t)size;
}