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#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include "core.h"
#include "cr.h"
#include "util.h"
int ecp_util_key_save(ECPDHKey *key, char *filename) {
int fd;
ssize_t rv;
if (!key->valid) return ECP_ERR;
if ((fd = open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)) < 0) return ECP_ERR;
rv = write(fd, &key->public, sizeof(key->public));
if (rv != sizeof(key->public)) {
close(fd);
return ECP_ERR;
}
rv = write(fd, &key->private, sizeof(key->private));
if (rv != sizeof(key->private)) {
close(fd);
return ECP_ERR;
}
close(fd);
return ECP_OK;
}
int ecp_util_key_load(ECPDHKey *key, char *filename) {
int fd;
ssize_t rv;
if ((fd = open(filename, O_RDONLY)) < 0) return ECP_ERR;
rv = read(fd, &key->public, sizeof(key->public));
if (rv != sizeof(key->public)) {
close(fd);
return ECP_ERR;
}
rv = read(fd, &key->private, sizeof(key->private));
if (rv != sizeof(key->private)) {
close(fd);
return ECP_ERR;
}
close(fd);
key->valid = 1;
return ECP_OK;
}
int ecp_util_node_save(ECPNode *node, char *filename) {
int fd;
ssize_t rv;
if (!node->key_perma.valid) return ECP_ERR;
if ((fd = open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)) < 0) return ECP_ERR;
rv = write(fd, &node->key_perma.public, sizeof(node->key_perma.public));
if (rv != sizeof(node->key_perma.public)) {
close(fd);
return ECP_ERR;
}
rv = write(fd, &node->addr, sizeof(node->addr));
if (rv != sizeof(node->addr)) {
close(fd);
return ECP_ERR;
}
close(fd);
return ECP_OK;
}
int ecp_util_node_load(ECPNode *node, char *filename) {
int fd;
ssize_t rv;
if ((fd = open(filename, O_RDONLY)) < 0) return ECP_ERR;
rv = read(fd, &node->key_perma.public, sizeof(node->key_perma.public));
if (rv != sizeof(node->key_perma.public)) {
close(fd);
return ECP_ERR;
}
rv = read(fd, &node->addr, sizeof(node->addr));
if (rv != sizeof(node->addr)) {
close(fd);
return ECP_ERR;
}
close(fd);
node->key_perma.valid = 1;
return ECP_OK;
}
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