Networking: support nowait connection (Windows)

CMakeLists.txt

@@ -220,7 +220,6 @@ set(LIBFASTFETCH_SRC
     src/common/parsing.c
     src/common/settings.c
     src/common/library.c
-    src/common/networking.c
     src/common/bar.c
     src/logo/logo.c
     src/logo/builtin.c
@@ -293,6 +292,7 @@ set(LIBFASTFETCH_SRC
 if(LINUX OR APPLE OR ANDROID OR BSD)
     list(APPEND LIBFASTFETCH_SRC
         src/common/processing_linux.c
+        src/common/networking_linux.c
         src/detection/users/users_linux.c
         src/detection/terminalshell/terminalshell_linux.c
         src/detection/localip/localip_linux.c
@@ -360,6 +360,7 @@ endif()
 if(WIN32)
     list(APPEND LIBFASTFETCH_SRC
         src/common/processing_windows.c
+        src/common/networking_windows.c
         src/detection/host/host_windows.cpp
         src/detection/bios/bios_windows.cpp
         src/detection/board/board_windows.cpp

src/common/networking.c

@@ -1,115 +0,0 @@
-#ifdef _WIN32
-    #include <winsock2.h>
-    #include <ws2tcpip.h>
-    #include <synchapi.h>
-
-    static BOOL WINAPI initWsaData(PINIT_ONCE once, PVOID param, PVOID* context)
-    {
-        (void)once;
-        (void)param;
-        static WSADATA wsaData;
-        *context = &wsaData;
-        return WSAStartup(MAKEWORD(2, 2), &wsaData) == 0;
-    }
-
-    //Types of winsock2 are full of mess. Disable warnings for them and keep clean for posix
-    #pragma GCC diagnostic ignored "-Wincompatible-pointer-types"
-    #pragma GCC diagnostic ignored "-Wconversion"
-    #pragma GCC diagnostic ignored "-Wsign-conversion"
-#else
-    #include <unistd.h>
-    #include <sys/time.h>
-    #include <sys/socket.h>
-    #include <netdb.h>
-
-    #define closesocket close
-#endif
-
-//Must be included after <winsock2.h>
-#include "fastfetch.h"
-#include "common/networking.h"
-
-FFSockType ffNetworkingSendHttpRequest(const char* host, const char* path, const char* headers, uint32_t timeout)
-{
-    #ifdef _WIN32
-    static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
-    WSADATA* pData;
-    if(!InitOnceExecuteOnce(&once, initWsaData, NULL, (LPVOID*) &pData))
-        return INVALID_SOCKET;
-    #endif
-
-    struct addrinfo hints = {
-        .ai_family = AF_INET,
-        .ai_socktype = SOCK_STREAM,
-    };
-
-    struct addrinfo* addr;
-
-    if(getaddrinfo(host, "80", &hints, &addr) != 0)
-        return INVALID_SOCKET;
-
-    FFSockType sockfd = (FFSockType)socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
-    if(sockfd == INVALID_SOCKET)
-    {
-        freeaddrinfo(addr);
-        return INVALID_SOCKET;
-    }
-
-    if(timeout > 0)
-    {
-        struct timeval timev;
-        timev.tv_sec = 0;
-        timev.tv_usec = (__typeof__(timev.tv_usec)) (timeout * 1000); //milliseconds to microseconds
-        setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &timev, sizeof(timev));
-    }
-
-    if(connect(sockfd, addr->ai_addr, addr->ai_addrlen) == -1)
-    {
-        closesocket(sockfd);
-        freeaddrinfo(addr);
-        return INVALID_SOCKET;
-    }
-
-    freeaddrinfo(addr);
-
-    FFstrbuf command;
-    ffStrbufInitA(&command, 64);
-    ffStrbufAppendS(&command, "GET ");
-    ffStrbufAppendS(&command, path);
-    ffStrbufAppendS(&command, " HTTP/1.1\nHost: ");
-    ffStrbufAppendS(&command, host);
-    ffStrbufAppendS(&command, "\r\n");
-    ffStrbufAppendS(&command, headers);
-    ffStrbufAppendS(&command, "\r\n");
-
-    if(send(sockfd, command.chars, command.length, 0) == -1)
-    {
-        ffStrbufDestroy(&command);
-        closesocket(sockfd);
-        return INVALID_SOCKET;
-    }
-    ffStrbufDestroy(&command);
-    return sockfd;
-}
-
-bool ffNetworkingRecvHttpResponse(FFSockType sockfd, FFstrbuf* buffer)
-{
-    ssize_t received = recv(sockfd, buffer->chars + buffer->length, ffStrbufGetFree(buffer), 0);
-
-    if(received > 0)
-    {
-        buffer->length += (uint32_t) received;
-        buffer->chars[buffer->length] = '\0';
-    }
-
-    closesocket(sockfd);
-    return ffStrbufStartsWithS(buffer, "HTTP/1.1 200 OK\r\n");
-}
-
-bool ffNetworkingGetHttp(const char* host, const char* path, uint32_t timeout, const char* headers, FFstrbuf* buffer)
-{
-    FFSockType sockfd = ffNetworkingSendHttpRequest(host, path, headers, timeout);
-    if(sockfd != INVALID_SOCKET)
-        return ffNetworkingRecvHttpResponse(sockfd, buffer);
-    return false;
-}

src/common/networking.h

@@ -6,17 +6,27 @@
 #include "util/FFstrbuf.h"
 
 #ifdef _WIN32
-    typedef uintptr_t FFSockType; //SOCKET, unsigned
-    #ifndef INVALID_SOCKET //Don't conflict with <winsock2.h>
-        #define INVALID_SOCKET ((uintptr_t)~0)
+    #include <minwindef.h>
+#endif
+
+typedef struct FFNetworkingState {
+    #ifdef _WIN32
+    uintptr_t sockfd;
+    OVERLAPPED overlapped;
+    #else
+    int sockfd;
     #endif
-#else
-    typedef int FFSockType; // signed
-    #define INVALID_SOCKET (-1)
-#endif
+} FFNetworkingState;
 
-FFSockType ffNetworkingSendHttpRequest(const char* host, const char* path, const char* headers, uint32_t timeout);
-bool ffNetworkingRecvHttpResponse(FFSockType sockfd, FFstrbuf* buffer);
-bool ffNetworkingGetHttp(const char* host, const char* path, uint32_t timeout, const char* headers, FFstrbuf* buffer);
+bool ffNetworkingSendHttpRequest(FFNetworkingState* state, const char* host, const char* path, const char* headers);
+bool ffNetworkingRecvHttpResponse(FFNetworkingState* state, FFstrbuf* buffer, uint32_t timeout);
+
+static inline bool ffNetworkingGetHttp(const char* host, const char* path, uint32_t timeout, const char* headers, FFstrbuf* buffer)
+{
+    FFNetworkingState state;
+    if(ffNetworkingSendHttpRequest(&state, host, path, headers))
+        return ffNetworkingRecvHttpResponse(&state, buffer, timeout);
+    return false;
+}
 
 #endif

src/common/networking_linux.c

@@ -0,0 +1,77 @@
+#include "fastfetch.h"
+#include "common/networking.h"
+
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+bool ffNetworkingSendHttpRequest(FFNetworkingState* state, const char* host, const char* path, const char* headers)
+{
+    struct addrinfo hints = {
+        .ai_family = AF_INET,
+        .ai_socktype = SOCK_STREAM,
+    };
+
+    struct addrinfo* addr;
+
+    if(getaddrinfo(host, "80", &hints, &addr) != 0)
+        return false;
+
+    state->sockfd = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
+    if(state->sockfd == -1)
+    {
+        freeaddrinfo(addr);
+        return false;
+    }
+
+    if(connect(state->sockfd, addr->ai_addr, addr->ai_addrlen) == -1)
+    {
+        close(state->sockfd);
+        freeaddrinfo(addr);
+        return false;
+    }
+
+    freeaddrinfo(addr);
+
+    FFstrbuf command;
+    ffStrbufInitA(&command, 64);
+    ffStrbufAppendS(&command, "GET ");
+    ffStrbufAppendS(&command, path);
+    ffStrbufAppendS(&command, " HTTP/1.1\nHost: ");
+    ffStrbufAppendS(&command, host);
+    ffStrbufAppendS(&command, "\r\n");
+    ffStrbufAppendS(&command, headers);
+    ffStrbufAppendS(&command, "\r\n");
+
+    if(send(state->sockfd, command.chars, command.length, 0) < 0)
+    {
+        ffStrbufDestroy(&command);
+        close(state->sockfd);
+        return false;
+    }
+    ffStrbufDestroy(&command);
+    return true;
+}
+
+bool ffNetworkingRecvHttpResponse(FFNetworkingState* state, FFstrbuf* buffer, uint32_t timeout)
+{
+    if(timeout > 0)
+    {
+        struct timeval timev;
+        timev.tv_sec = 0;
+        timev.tv_usec = (__typeof__(timev.tv_usec)) (timeout * 1000); //milliseconds to microseconds
+        setsockopt(state->sockfd, SOL_SOCKET, SO_RCVTIMEO, &timev, sizeof(timev));
+    }
+
+    ssize_t received = recv(state->sockfd, buffer->chars + buffer->length, ffStrbufGetFree(buffer), 0);
+
+    if(received > 0)
+    {
+        buffer->length += (uint32_t) received;
+        buffer->chars[buffer->length] = '\0';
+    }
+
+    close(state->sockfd);
+    return ffStrbufStartsWithS(buffer, "HTTP/1.1 200 OK\r\n");
+}

src/common/networking_windows.c

@@ -0,0 +1,127 @@
+#include <mswsock.h>
+#include <ws2tcpip.h>
+
+//Must be included after <mswsock.h>
+#include "fastfetch.h"
+#include "common/networking.h"
+
+static LPFN_CONNECTEX ConnectEx;
+
+static BOOL WINAPI initWsaData(PINIT_ONCE once, PVOID param, PVOID* context)
+{
+    (void)once;
+    (void)param;
+    static WSADATA wsaData;
+    *context = &wsaData;
+    if(WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
+        return FALSE;
+
+    if(LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2)
+        return FALSE;
+
+    //Dummy socket needed for WSAIoctl
+    SOCKET sockfd = socket(AF_INET, SOCK_STREAM, 0);
+    if(sockfd == INVALID_SOCKET)
+        return FALSE;
+
+    DWORD dwBytes;
+    GUID guid = WSAID_CONNECTEX;
+    if(WSAIoctl(sockfd, SIO_GET_EXTENSION_FUNCTION_POINTER,
+                    &guid, sizeof(guid),
+                    &ConnectEx, sizeof(ConnectEx),
+                    &dwBytes, NULL, NULL) != 0)
+        return FALSE;
+
+    return closesocket(sockfd) == 0;
+}
+
+bool ffNetworkingSendHttpRequest(FFNetworkingState* state, const char* host, const char* path, const char* headers)
+{
+    static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
+    WSADATA* pData;
+    if(!InitOnceExecuteOnce(&once, initWsaData, NULL, (LPVOID*) &pData))
+        return false;
+
+    memset(state, 0, sizeof(*state));
+
+    struct addrinfo hints = {
+        .ai_family = AF_INET,
+        .ai_socktype = SOCK_STREAM,
+    };
+
+    struct addrinfo* addr;
+
+    if(getaddrinfo(host, "80", &hints, &addr) != 0)
+        return false;
+
+    state->sockfd = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
+    if(state->sockfd == INVALID_SOCKET)
+    {
+        freeaddrinfo(addr);
+        return false;
+    }
+
+    {
+        //ConnectEx requires the socket to be initially bound
+        struct sockaddr_in addr = {
+            .sin_family = AF_INET,
+            .sin_addr.s_addr = INADDR_ANY,
+            .sin_port = 0,
+        };
+        if(bind(state->sockfd, (SOCKADDR *)&addr, sizeof(addr)) != 0)
+        {
+            printf("bind %d\n", WSAGetLastError());
+            return false;
+        }
+    }
+
+    FFstrbuf command;
+    ffStrbufInitA(&command, 64);
+    ffStrbufAppendS(&command, "GET ");
+    ffStrbufAppendS(&command, path);
+    ffStrbufAppendS(&command, " HTTP/1.1\nHost: ");
+    ffStrbufAppendS(&command, host);
+    ffStrbufAppendS(&command, "\r\n");
+    ffStrbufAppendS(&command, headers);
+    ffStrbufAppendS(&command, "\r\n");
+
+    BOOL result = ConnectEx(state->sockfd, addr->ai_addr, (int)addr->ai_addrlen, command.chars, command.length, NULL, &state->overlapped);
+    freeaddrinfo(addr);
+    ffStrbufDestroy(&command);
+
+    if(!result && WSAGetLastError() != WSA_IO_PENDING)
+    {
+        closesocket(state->sockfd);
+        return false;
+    }
+
+    ffStrbufDestroy(&command);
+    return true;
+}
+
+bool ffNetworkingRecvHttpResponse(FFNetworkingState* state, FFstrbuf* buffer, uint32_t timeout)
+{
+    DWORD transfer, flags;
+    if (!WSAGetOverlappedResult(state->sockfd, &state->overlapped, &transfer, TRUE, &flags))
+    {
+        closesocket(state->sockfd);
+        return false;
+    }
+
+    if(timeout > 0)
+    {
+        //https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-setsockopt
+        setsockopt(state->sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof(timeout));
+    }
+
+    ssize_t received = recv(state->sockfd, buffer->chars + buffer->length, (int)ffStrbufGetFree(buffer), 0);
+
+    if(received > 0)
+    {
+        buffer->length += (uint32_t) received;
+        buffer->chars[buffer->length] = '\0';
+    }
+
+    closesocket(state->sockfd);
+    return ffStrbufStartsWithS(buffer, "HTTP/1.1 200 OK\r\n");
+}

src/modules/publicip.c

@@ -5,12 +5,13 @@
 #define FF_PUBLICIP_MODULE_NAME "Public IP"
 #define FF_PUBLICIP_NUM_FORMAT_ARGS 1
 
-static FFSockType sockfd;
+static FFNetworkingState state;
+static int status = -1;
 
 void ffPreparePublicIp(FFinstance* instance)
 {
     if(instance->config.publicIpUrl.length == 0)
-        sockfd = ffNetworkingSendHttpRequest("ipinfo.io", "/ip", NULL, instance->config.publicIpTimeout);
+        status = ffNetworkingSendHttpRequest(&state, "ipinfo.io", "/ip", NULL);
     else
     {
         FFstrbuf host;
@@ -27,7 +28,7 @@ void ffPreparePublicIp(FFinstance* instance)
             host.chars[pathStartIndex] = '\0';
         }
 
-        sockfd = ffNetworkingSendHttpRequest(host.chars, path.length == 0 ? "/" : path.chars, NULL, instance->config.publicIpTimeout);
+        status = ffNetworkingSendHttpRequest(&state, host.chars, path.length == 0 ? "/" : path.chars, NULL);
 
         ffStrbufDestroy(&path);
         ffStrbufDestroy(&host);
@@ -36,10 +37,10 @@ void ffPreparePublicIp(FFinstance* instance)
 
 void ffPrintPublicIp(FFinstance* instance)
 {
-    if(sockfd == 0)
+    if(status == -1)
         ffPreparePublicIp(instance);
 
-    if(sockfd == INVALID_SOCKET)
+    if(status == 0)
     {
         ffPrintError(instance, FF_PUBLICIP_MODULE_NAME, 0, &instance->config.publicIP, "Failed to connect to an IP detection server");
         return;
@@ -47,7 +48,7 @@ void ffPrintPublicIp(FFinstance* instance)
 
     FFstrbuf result;
     ffStrbufInitA(&result, 4096);
-    bool success = ffNetworkingRecvHttpResponse(sockfd, &result);
+    bool success = ffNetworkingRecvHttpResponse(&state, &result, instance->config.publicIpTimeout);
     if(success) ffStrbufSubstrAfterFirstS(&result, "\r\n\r\n");
 
     if(!success || result.length == 0)

src/modules/weather.c

@@ -5,23 +5,24 @@
 #define FF_WEATHER_MODULE_NAME "Weather"
 #define FF_WEATHER_NUM_FORMAT_ARGS 1
 
-static FFSockType sockfd;
+static FFNetworkingState state;
+static int status = -1;
 
 void ffPrepareWeather(FFinstance* instance)
 {
     FFstrbuf path;
     ffStrbufInitS(&path, "/?format=");
     ffStrbufAppend(&path, &instance->config.weatherOutputFormat);
-    sockfd = ffNetworkingSendHttpRequest("wttr.in", path.chars, "User-Agent: curl/0.0.0\r\n", instance->config.weatherTimeout);
+    status = ffNetworkingSendHttpRequest(&state, "wttr.in", path.chars, "User-Agent: curl/0.0.0\r\n");
     ffStrbufDestroy(&path);
 }
 
 void ffPrintWeather(FFinstance* instance)
 {
-    if(sockfd == 0)
+    if(status == -1)
         ffPrepareWeather(instance);
 
-    if(sockfd == INVALID_SOCKET)
+    if(status == 0)
     {
         ffPrintError(instance, FF_WEATHER_MODULE_NAME, 0, &instance->config.weather, "Failed to connect to 'wttr.in'");
         return;
@@ -29,7 +30,7 @@ void ffPrintWeather(FFinstance* instance)
 
     FFstrbuf result;
     ffStrbufInitA(&result, 4096);
-    bool success = ffNetworkingRecvHttpResponse(sockfd, &result);
+    bool success = ffNetworkingRecvHttpResponse(&state, &result, instance->config.weatherTimeout);
     if (success) ffStrbufSubstrAfterFirstS(&result, "\r\n\r\n");
 
     if(!success || result.length == 0)