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#include <arpa/inet.h>
#include <camellia.h>
#include <camellia/syscalls.h>
#include <errno.h>
#include <netdb.h>
#include <netinet/in.h>
#include <stdio.h>
#include <sys/socket.h>
int socket(int domain, int type, int protocol) {
if (domain != AF_INET || type != SOCK_STREAM || protocol != IPPROTO_TCP) {
return errno = ENOSYS, -1;
}
int h = _sys_getnull(0);
if (h < 0) {
return errno = -h, -1;
} else {
return h;
}
}
int bind(int, const struct sockaddr *, socklen_t) {
return errno = ENOSYS, -1;
}
int accept(int, struct sockaddr *, socklen_t *) {
return errno = ENOSYS, -1;
}
int listen(int, int) {
return errno = ENOSYS, -1;
}
int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen) {
char buf[256];
struct sockaddr_in *addr4 = (void*)addr;
uint32_t ip;
uint16_t port;
int newfd;
if (addr->sa_family != AF_INET) {
return errno = ENOSYS, -1;
}
if (addrlen < (ssize_t)sizeof(*addr4)) {
return errno = EINVAL, -1;
}
ip = ntohl(addr4->sin_addr.s_addr);
port = ntohs(addr4->sin_port);
if (snprintf(buf, 256, "/net/connect/0/%ld/tcp/%d", ip, port) >= 256) {
return errno = EGENERIC, -1;
}
newfd = camellia_open(buf, OPEN_READ | OPEN_WRITE);
if (newfd < 0) {
return -1;
}
dup2(newfd, sockfd);
close(newfd);
return 0;
}
ssize_t send(int sockfd, const void *buf, size_t len, int flags) {
if (flags != 0) {
return errno = ENOSYS, -1;
}
return write(sockfd, buf, len);
}
ssize_t recv(int sockfd, void *buf, size_t len, int flags) {
if (flags != 0) {
return errno = ENOSYS, -1;
}
return read(sockfd, buf, len);
}
int getsockopt(int, int, int, void *, socklen_t *) {
return errno = ENOSYS, -1;
}
int setsockopt(int, int, int, const void *, socklen_t) {
return 0;
}
int getsockname(int sockfd, struct sockaddr *addr, socklen_t *addrlen) {
// TODO /net/ should expose local address somehow
/* dummy output, just to satisfy curl */
(void)sockfd; (void)addrlen;
addr->sa_family = AF_UNSPEC;
return 0;
}
struct hostent *gethostbyname(const char *name) {
(void)name;
return NULL;
}
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