slirp: move sources to src/ subdirectory

Prepare for making slirp/ a standalone project.

Remove some useless includes while at it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190212162524.31504-5-marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

1 files changed, 367 insertions, 0 deletions

diff --git a/slirp/src/util.c b/slirp/src/util.c
new file mode 100644
index 0000000000..5ec2fa87ab
--- /dev/null
+++ b/slirp/src/util.c
@@ -0,0 +1,367 @@
+/*
+ * util.c (mostly based on QEMU os-win32.c)
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2010-2016 Red Hat, Inc.
+ *
+ * QEMU library functions for win32 which are shared between QEMU and
+ * the QEMU tools.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "util.h"
+
+#include <glib.h>
+#include <fcntl.h>
+#include <stdint.h>
+
+#if defined(_WIN32)
+int slirp_inet_aton(const char *cp, struct in_addr *ia)
+{
+    uint32_t addr = inet_addr(cp);
+    if (addr == 0xffffffff) {
+        return 0;
+    }
+    ia->s_addr = addr;
+    return 1;
+}
+#endif
+
+void slirp_set_nonblock(int fd)
+{
+#ifndef _WIN32
+    int f;
+    f = fcntl(fd, F_GETFL);
+    assert(f != -1);
+    f = fcntl(fd, F_SETFL, f | O_NONBLOCK);
+    assert(f != -1);
+#else
+    unsigned long opt = 1;
+    ioctlsocket(fd, FIONBIO, &opt);
+#endif
+}
+
+static void slirp_set_cloexec(int fd)
+{
+#ifndef _WIN32
+    int f;
+    f = fcntl(fd, F_GETFD);
+    assert(f != -1);
+    f = fcntl(fd, F_SETFD, f | FD_CLOEXEC);
+    assert(f != -1);
+#endif
+}
+
+/*
+ * Opens a socket with FD_CLOEXEC set
+ */
+int slirp_socket(int domain, int type, int protocol)
+{
+    int ret;
+
+#ifdef SOCK_CLOEXEC
+    ret = socket(domain, type | SOCK_CLOEXEC, protocol);
+    if (ret != -1 || errno != EINVAL) {
+        return ret;
+    }
+#endif
+    ret = socket(domain, type, protocol);
+    if (ret >= 0) {
+        slirp_set_cloexec(ret);
+    }
+
+    return ret;
+}
+
+#ifdef _WIN32
+static int socket_error(void)
+{
+    switch (WSAGetLastError()) {
+    case 0:
+        return 0;
+    case WSAEINTR:
+        return EINTR;
+    case WSAEINVAL:
+        return EINVAL;
+    case WSA_INVALID_HANDLE:
+        return EBADF;
+    case WSA_NOT_ENOUGH_MEMORY:
+        return ENOMEM;
+    case WSA_INVALID_PARAMETER:
+        return EINVAL;
+    case WSAENAMETOOLONG:
+        return ENAMETOOLONG;
+    case WSAENOTEMPTY:
+        return ENOTEMPTY;
+    case WSAEWOULDBLOCK:
+         /* not using EWOULDBLOCK as we don't want code to have
+          * to check both EWOULDBLOCK and EAGAIN */
+        return EAGAIN;
+    case WSAEINPROGRESS:
+        return EINPROGRESS;
+    case WSAEALREADY:
+        return EALREADY;
+    case WSAENOTSOCK:
+        return ENOTSOCK;
+    case WSAEDESTADDRREQ:
+        return EDESTADDRREQ;
+    case WSAEMSGSIZE:
+        return EMSGSIZE;
+    case WSAEPROTOTYPE:
+        return EPROTOTYPE;
+    case WSAENOPROTOOPT:
+        return ENOPROTOOPT;
+    case WSAEPROTONOSUPPORT:
+        return EPROTONOSUPPORT;
+    case WSAEOPNOTSUPP:
+        return EOPNOTSUPP;
+    case WSAEAFNOSUPPORT:
+        return EAFNOSUPPORT;
+    case WSAEADDRINUSE:
+        return EADDRINUSE;
+    case WSAEADDRNOTAVAIL:
+        return EADDRNOTAVAIL;
+    case WSAENETDOWN:
+        return ENETDOWN;
+    case WSAENETUNREACH:
+        return ENETUNREACH;
+    case WSAENETRESET:
+        return ENETRESET;
+    case WSAECONNABORTED:
+        return ECONNABORTED;
+    case WSAECONNRESET:
+        return ECONNRESET;
+    case WSAENOBUFS:
+        return ENOBUFS;
+    case WSAEISCONN:
+        return EISCONN;
+    case WSAENOTCONN:
+        return ENOTCONN;
+    case WSAETIMEDOUT:
+        return ETIMEDOUT;
+    case WSAECONNREFUSED:
+        return ECONNREFUSED;
+    case WSAELOOP:
+        return ELOOP;
+    case WSAEHOSTUNREACH:
+        return EHOSTUNREACH;
+    default:
+        return EIO;
+    }
+}
+
+#undef ioctlsocket
+int slirp_ioctlsocket_wrap(int fd, int req, void *val)
+{
+    int ret;
+    ret = ioctlsocket(fd, req, val);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef closesocket
+int slirp_closesocket_wrap(int fd)
+{
+    int ret;
+    ret = closesocket(fd);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef connect
+int slirp_connect_wrap(int sockfd, const struct sockaddr *addr, int addrlen)
+{
+    int ret;
+    ret = connect(sockfd, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef listen
+int slirp_listen_wrap(int sockfd, int backlog)
+{
+    int ret;
+    ret = listen(sockfd, backlog);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef bind
+int slirp_bind_wrap(int sockfd, const struct sockaddr *addr, int addrlen)
+{
+    int ret;
+    ret = bind(sockfd, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef socket
+int slirp_socket_wrap(int domain, int type, int protocol)
+{
+    int ret;
+    ret = socket(domain, type, protocol);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef accept
+int slirp_accept_wrap(int sockfd, struct sockaddr *addr, int *addrlen)
+{
+    int ret;
+    ret = accept(sockfd, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef shutdown
+int slirp_shutdown_wrap(int sockfd, int how)
+{
+    int ret;
+    ret = shutdown(sockfd, how);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef getsockopt
+int slirp_getsockopt_wrap(int sockfd, int level, int optname,
+                          void *optval, int *optlen)
+{
+    int ret;
+    ret = getsockopt(sockfd, level, optname, optval, optlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef setsockopt
+int slirp_setsockopt_wrap(int sockfd, int level, int optname,
+                          const void *optval, int optlen)
+{
+    int ret;
+    ret = setsockopt(sockfd, level, optname, optval, optlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef getpeername
+int slirp_getpeername_wrap(int sockfd, struct sockaddr *addr,
+                           int *addrlen)
+{
+    int ret;
+    ret = getpeername(sockfd, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef getsockname
+int slirp_getsockname_wrap(int sockfd, struct sockaddr *addr,
+                           int *addrlen)
+{
+    int ret;
+    ret = getsockname(sockfd, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef send
+ssize_t slirp_send_wrap(int sockfd, const void *buf, size_t len, int flags)
+{
+    int ret;
+    ret = send(sockfd, buf, len, flags);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef sendto
+ssize_t slirp_sendto_wrap(int sockfd, const void *buf, size_t len, int flags,
+                     const struct sockaddr *addr, int addrlen)
+{
+    int ret;
+    ret = sendto(sockfd, buf, len, flags, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef recv
+ssize_t slirp_recv_wrap(int sockfd, void *buf, size_t len, int flags)
+{
+    int ret;
+    ret = recv(sockfd, buf, len, flags);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+
+#undef recvfrom
+ssize_t slirp_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags,
+                            struct sockaddr *addr, int *addrlen)
+{
+    int ret;
+    ret = recvfrom(sockfd, buf, len, flags, addr, addrlen);
+    if (ret < 0) {
+        errno = socket_error();
+    }
+    return ret;
+}
+#endif /* WIN32 */
+
+void slirp_pstrcpy(char *buf, int buf_size, const char *str)
+{
+    int c;
+    char *q = buf;
+
+    if (buf_size <= 0)
+        return;
+
+    for(;;) {
+        c = *str++;
+        if (c == 0 || q >= buf + buf_size - 1)
+            break;
+        *q++ = c;
+    }
+    *q = '\0';
+}