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-rw-r--r--common/socket.c501
1 files changed, 0 insertions, 501 deletions
diff --git a/common/socket.c b/common/socket.c
deleted file mode 100644
index 0ee8105..0000000
--- a/common/socket.c
+++ /dev/null
@@ -1,501 +0,0 @@
-/*
- * socket.c
- *
- * Copyright (C) 2012-2018 Nikias Bassen <nikias@gmx.li>
- * Copyright (C) 2012 Martin Szulecki <m.szulecki@libimobiledevice.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#ifdef WIN32
-#include <winsock2.h>
-#include <ws2tcpip.h>
-#include <windows.h>
-static int wsa_init = 0;
-#else
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-#include <fcntl.h>
-#endif
-#include "socket.h"
-
-#define RECV_TIMEOUT 20000
-#define CONNECT_TIMEOUT 5000
-
-#ifndef ECONNRESET
-#define ECONNRESET 108
-#endif
-
-static int verbose = 0;
-
-void socket_set_verbose(int level)
-{
- verbose = level;
-}
-
-#ifndef WIN32
-int socket_create_unix(const char *filename)
-{
- struct sockaddr_un name;
- int sock;
-#ifdef SO_NOSIGPIPE
- int yes = 1;
-#endif
-
- // remove if still present
- unlink(filename);
-
- /* Create the socket. */
- sock = socket(PF_UNIX, SOCK_STREAM, 0);
- if (sock < 0) {
- perror("socket");
- return -1;
- }
-
-#ifdef SO_NOSIGPIPE
- if (setsockopt(sock, SOL_SOCKET, SO_NOSIGPIPE, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sock);
- return -1;
- }
-#endif
-
- /* Bind a name to the socket. */
- name.sun_family = AF_UNIX;
- strncpy(name.sun_path, filename, sizeof(name.sun_path));
- name.sun_path[sizeof(name.sun_path) - 1] = '\0';
-
- if (bind(sock, (struct sockaddr*)&name, sizeof(name)) < 0) {
- perror("bind");
- socket_close(sock);
- return -1;
- }
-
- if (listen(sock, 10) < 0) {
- perror("listen");
- socket_close(sock);
- return -1;
- }
-
- return sock;
-}
-
-int socket_connect_unix(const char *filename)
-{
- struct sockaddr_un name;
- int sfd = -1;
- struct stat fst;
-#ifdef SO_NOSIGPIPE
- int yes = 1;
-#endif
- int bufsize = 0x20000;
-
- // check if socket file exists...
- if (stat(filename, &fst) != 0) {
- if (verbose >= 2)
- fprintf(stderr, "%s: stat '%s': %s\n", __func__, filename,
- strerror(errno));
- return -1;
- }
- // ... and if it is a unix domain socket
- if (!S_ISSOCK(fst.st_mode)) {
- if (verbose >= 2)
- fprintf(stderr, "%s: File '%s' is not a socket!\n", __func__,
- filename);
- return -1;
- }
- // make a new socket
- if ((sfd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
- if (verbose >= 2)
- fprintf(stderr, "%s: socket: %s\n", __func__, strerror(errno));
- return -1;
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_SNDBUF, (void*)&bufsize, sizeof(int)) == -1) {
- perror("Could not set send buffer for socket");
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_RCVBUF, (void*)&bufsize, sizeof(int)) == -1) {
- perror("Could not set receive buffer for socket");
- }
-
-#ifdef SO_NOSIGPIPE
- if (setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sfd);
- return -1;
- }
-#endif
- // and connect to 'filename'
- name.sun_family = AF_UNIX;
- strncpy(name.sun_path, filename, sizeof(name.sun_path));
- name.sun_path[sizeof(name.sun_path) - 1] = 0;
-
- if (connect(sfd, (struct sockaddr*)&name, sizeof(name)) < 0) {
- socket_close(sfd);
- if (verbose >= 2)
- fprintf(stderr, "%s: connect: %s\n", __func__,
- strerror(errno));
- return -1;
- }
-
- return sfd;
-}
-#endif
-
-int socket_create(uint16_t port)
-{
- int sfd = -1;
- int yes = 1;
-#ifdef WIN32
- WSADATA wsa_data;
- if (!wsa_init) {
- if (WSAStartup(MAKEWORD(2,2), &wsa_data) != ERROR_SUCCESS) {
- fprintf(stderr, "WSAStartup failed!\n");
- ExitProcess(-1);
- }
- wsa_init = 1;
- }
-#endif
- struct sockaddr_in saddr;
-
- if (0 > (sfd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))) {
- perror("socket()");
- return -1;
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sfd);
- return -1;
- }
-
-#ifdef SO_NOSIGPIPE
- if (setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sfd);
- return -1;
- }
-#endif
-
- memset((void *) &saddr, 0, sizeof(saddr));
- saddr.sin_family = AF_INET;
- saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- saddr.sin_port = htons(port);
-
- if (0 > bind(sfd, (struct sockaddr *) &saddr, sizeof(saddr))) {
- perror("bind()");
- socket_close(sfd);
- return -1;
- }
-
- if (listen(sfd, 1) == -1) {
- perror("listen()");
- socket_close(sfd);
- return -1;
- }
-
- return sfd;
-}
-
-int socket_connect(const char *addr, uint16_t port)
-{
- int sfd = -1;
- int yes = 1;
- int bufsize = 0x20000;
- struct addrinfo hints;
- struct addrinfo *result, *rp;
- char portstr[8];
- int res;
-#ifdef WIN32
- u_long l_yes = 1;
- u_long l_no = 0;
- WSADATA wsa_data;
- if (!wsa_init) {
- if (WSAStartup(MAKEWORD(2,2), &wsa_data) != ERROR_SUCCESS) {
- fprintf(stderr, "WSAStartup failed!\n");
- ExitProcess(-1);
- }
- wsa_init = 1;
- }
-#else
- int flags = 0;
-#endif
-
- if (!addr) {
- errno = EINVAL;
- return -1;
- }
-
- memset(&hints, '\0', sizeof(struct addrinfo));
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = 0;
- hints.ai_protocol = IPPROTO_TCP;
-
- sprintf(portstr, "%d", port);
-
- res = getaddrinfo(addr, portstr, &hints, &result);
- if (res != 0) {
- fprintf(stderr, "%s: getaddrinfo: %s\n", __func__, gai_strerror(res));
- return -1;
- }
-
- for (rp = result; rp != NULL; rp = rp->ai_next) {
- sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
- if (sfd == -1) {
- continue;
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sfd);
- continue;
- }
-
-#ifdef WIN32
- ioctlsocket(sfd, FIONBIO, &l_yes);
-#else
- fcntl(sfd, F_SETFL, O_NONBLOCK);
-#endif
-
- if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1) {
- break;
- }
-#ifdef WIN32
- if (WSAGetLastError() == WSAEWOULDBLOCK)
-#else
- if (errno == EINPROGRESS)
-#endif
- {
- fd_set fds;
- FD_ZERO(&fds);
- FD_SET(sfd, &fds);
-
- struct timeval timeout;
- timeout.tv_sec = CONNECT_TIMEOUT / 1000;
- timeout.tv_usec = (CONNECT_TIMEOUT - (timeout.tv_sec * 1000)) * 1000;
- if (select(sfd + 1, NULL, &fds, NULL, &timeout) == 1) {
- int so_error;
- socklen_t len = sizeof(so_error);
- getsockopt(sfd, SOL_SOCKET, SO_ERROR, (void*)&so_error, &len);
- if (so_error == 0) {
- break;
- }
- }
- }
- socket_close(sfd);
- }
-
- freeaddrinfo(result);
-
- if (rp == NULL) {
- if (verbose >= 2)
- fprintf(stderr, "%s: Could not connect to %s:%d\n", __func__, addr, port);
- return -1;
- }
-
-#ifdef WIN32
- ioctlsocket(sfd, FIONBIO, &l_no);
-#else
- flags = fcntl(sfd, F_GETFL, 0);
- fcntl(sfd, F_SETFL, flags & (~O_NONBLOCK));
-#endif
-
-#ifdef SO_NOSIGPIPE
- if (setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, (void*)&yes, sizeof(int)) == -1) {
- perror("setsockopt()");
- socket_close(sfd);
- return -1;
- }
-#endif
-
- if (setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(int)) == -1) {
- perror("Could not set TCP_NODELAY on socket");
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_SNDBUF, (void*)&bufsize, sizeof(int)) == -1) {
- perror("Could not set send buffer for socket");
- }
-
- if (setsockopt(sfd, SOL_SOCKET, SO_RCVBUF, (void*)&bufsize, sizeof(int)) == -1) {
- perror("Could not set receive buffer for socket");
- }
-
- return sfd;
-}
-
-int socket_check_fd(int fd, fd_mode fdm, unsigned int timeout)
-{
- fd_set fds;
- int sret;
- int eagain;
- struct timeval to;
- struct timeval *pto;
-
- if (fd < 0) {
- if (verbose >= 2)
- fprintf(stderr, "ERROR: invalid fd in check_fd %d\n", fd);
- return -1;
- }
-
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
-
- sret = -1;
-
- do {
- if (timeout > 0) {
- to.tv_sec = (time_t) (timeout / 1000);
- to.tv_usec = (time_t) ((timeout - (to.tv_sec * 1000)) * 1000);
- pto = &to;
- } else {
- pto = NULL;
- }
- eagain = 0;
- switch (fdm) {
- case FDM_READ:
- sret = select(fd + 1, &fds, NULL, NULL, pto);
- break;
- case FDM_WRITE:
- sret = select(fd + 1, NULL, &fds, NULL, pto);
- break;
- case FDM_EXCEPT:
- sret = select(fd + 1, NULL, NULL, &fds, pto);
- break;
- default:
- return -1;
- }
-
- if (sret < 0) {
- switch (errno) {
- case EINTR:
- // interrupt signal in select
- if (verbose >= 2)
- fprintf(stderr, "%s: EINTR\n", __func__);
- eagain = 1;
- break;
- case EAGAIN:
- if (verbose >= 2)
- fprintf(stderr, "%s: EAGAIN\n", __func__);
- break;
- default:
- if (verbose >= 2)
- fprintf(stderr, "%s: select failed: %s\n", __func__,
- strerror(errno));
- return -1;
- }
- } else if (sret == 0) {
- if (verbose >= 2)
- fprintf(stderr, "%s: timeout\n", __func__);
- return -ETIMEDOUT;
- }
- } while (eagain);
-
- return sret;
-}
-
-int socket_accept(int fd, uint16_t port)
-{
-#ifdef WIN32
- int addr_len;
-#else
- socklen_t addr_len;
-#endif
- int result;
- struct sockaddr_in addr;
-
- memset(&addr, 0, sizeof(addr));
- addr.sin_family = AF_INET;
- addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
- addr.sin_port = htons(port);
-
- addr_len = sizeof(addr);
- result = accept(fd, (struct sockaddr*)&addr, &addr_len);
-
- return result;
-}
-
-int socket_shutdown(int fd, int how)
-{
- return shutdown(fd, how);
-}
-
-int socket_close(int fd) {
-#ifdef WIN32
- return closesocket(fd);
-#else
- return close(fd);
-#endif
-}
-
-int socket_receive(int fd, void *data, size_t length)
-{
- return socket_receive_timeout(fd, data, length, 0, RECV_TIMEOUT);
-}
-
-int socket_peek(int fd, void *data, size_t length)
-{
- return socket_receive_timeout(fd, data, length, MSG_PEEK, RECV_TIMEOUT);
-}
-
-int socket_receive_timeout(int fd, void *data, size_t length, int flags,
- unsigned int timeout)
-{
- int res;
- int result;
-
- // check if data is available
- res = socket_check_fd(fd, FDM_READ, timeout);
- if (res <= 0) {
- return res;
- }
- // if we get here, there _is_ data available
- result = recv(fd, data, length, flags);
- if (res > 0 && result == 0) {
- // but this is an error condition
- if (verbose >= 3)
- fprintf(stderr, "%s: fd=%d recv returned 0\n", __func__, fd);
- return -ECONNRESET;
- }
- if (result < 0) {
- return -errno;
- }
- return result;
-}
-
-int socket_send(int fd, void *data, size_t length)
-{
- int flags = 0;
-#ifdef MSG_NOSIGNAL
- flags |= MSG_NOSIGNAL;
-#endif
- return send(fd, data, length, flags);
-}
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