examples: prefer return over exit() (cont.)

Some of these calls were not in callbacks. These examples may leak
handles.

Also fix some whitespace.

Follow-up to 08c7c937dc #16507
Closes #16524

.github/workflows/http3-linux.yml

@@ -454,9 +454,7 @@ jobs:
           grep -F '#define' bld/lib/curl_config.h | sort || true
 
       - name: 'test configs'
-        run: |
-          cat bld/tests/config || true
-          cat bld/tests/http/config.ini || true
+        run: grep -H -v '^#' bld/tests/config bld/tests/http/config.ini || true
 
       - name: 'build'
         run: |
@@ -500,7 +498,6 @@ jobs:
 
       - name: 'run pytest event based'
         env:
-          TFLAGS: '${{ matrix.build.tflags }}'
           CURL_TEST_EVENT: 1
           CURL_CI: github
           PYTEST_ADDOPTS: '--color=yes'

.github/workflows/linux.yml

@@ -304,7 +304,8 @@ jobs:
             libtool autoconf automake pkgconf ninja-build \
             ${{ matrix.build.install_steps != 'skipall' && matrix.build.install_steps != 'skiprun' && 'stunnel4' || '' }} \
             libpsl-dev libbrotli-dev libzstd-dev \
-            ${{ matrix.build.install_packages }}
+            ${{ matrix.build.install_packages }} \
+            ${{ contains(matrix.build.install_steps, 'pytest') && 'apache2 apache2-dev libnghttp2-dev vsftpd' || '' }}
           python3 -m venv $HOME/venv
 
       - name: 'install prereqs'
@@ -319,11 +320,6 @@ jobs:
             ${{ matrix.build.install_packages }}
           python3 -m venv $HOME/venv
 
-      - name: 'install prereqs for pytest'
-        if: contains(matrix.build.install_steps, 'pytest')
-        run: |
-          sudo apt-get -o Dpkg::Use-Pty=0 install apache2 apache2-dev libnghttp2-dev vsftpd
-
       - name: 'install dependencies'
         if: startsWith(matrix.build.container, 'alpine')
         run: |
@@ -616,9 +612,7 @@ jobs:
           grep -F '#define' bld/lib/curl_config.h | sort || true
 
       - name: 'test configs'
-        run: |
-          cat bld/tests/config || true
-          cat bld/tests/http/config.ini || true
+        run: grep -H -v '^#' bld/tests/config bld/tests/http/config.ini || true
 
       - name: 'build'
         run: |
@@ -694,7 +688,6 @@ jobs:
       - name: 'run pytest'
         if: contains(matrix.build.install_steps, 'pytest')
         env:
-          TFLAGS: '${{ matrix.build.tflags }}'
           CURL_CI: github
           PYTEST_ADDOPTS: '--color=yes'
         run: |

.github/workflows/macos.yml

@@ -123,9 +123,10 @@ jobs:
             compiler: clang
             configure: --enable-debug --with-openssl=$(brew --prefix openssl)
             tflags: --test-event
-          - name: 'OpenSSL libssh2 !ldap 10.15'
+          - name: 'quictls libssh2 !ldap 10.15'
             compiler: clang
-            configure: --enable-debug --disable-ldap --with-openssl=$(brew --prefix openssl)
+            install: quictls
+            configure: --enable-debug --disable-ldap --with-openssl=$(brew --prefix quictls) LDFLAGS="${LDFLAGS} -L$(brew --prefix quictls)/lib"
             macos-version-min: '10.15'
           # cmake
           - name: 'OpenSSL gsasl rtmp AppleIDN'
@@ -136,9 +137,9 @@ jobs:
             generate: -DOPENSSL_ROOT_DIR=$(brew --prefix openssl) -DUSE_APPLE_IDN=ON -DCURL_CLANG_TIDY=ON -DCLANG_TIDY=$(brew --prefix llvm)/bin/clang-tidy
             clang-tidy: true
             chkprefill: _chkprefill
-          - name: 'OpenSSL +static libssh +examples'
-            install: libssh
-            generate: -DOPENSSL_ROOT_DIR=$(brew --prefix openssl) -DBUILD_STATIC_LIBS=ON -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON
+          - name: 'quictls +static libssh +examples'
+            install: quictls libssh
+            generate: -DOPENSSL_ROOT_DIR=$(brew --prefix quictls) -DBUILD_STATIC_LIBS=ON -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON
           - name: 'SecureTransport debug'
             generate: -DCURL_USE_SECTRANSP=ON -DENABLE_DEBUG=ON
             macos-version-min: '10.8'
@@ -184,11 +185,12 @@ jobs:
         run: |
           echo ${{ matrix.build.generate && 'ninja' || 'automake libtool' }} \
             pkgconf libpsl libssh2 \
-            ${{ !matrix.build.clang-tidy && 'nghttp2 stunnel' || '' }} \
+            ${{ !matrix.build.clang-tidy && 'libnghttp2 stunnel' || '' }} \
             ${{ matrix.build.install }} | xargs -Ix -n1 echo brew '"x"' > /tmp/Brewfile
           while [[ $? == 0 ]]; do for i in 1 2 3; do brew update && brew bundle install --no-lock --file /tmp/Brewfile && break 2 || { echo Error: wait to try again; sleep 10; } done; false Too many retries; done
 
       - name: 'brew unlink openssl'
+        if: ${{ contains(matrix.build.install, 'libressl') || contains(matrix.build.install, 'quictls') }}
         run: |
           if test -d $(brew --prefix)/include/openssl; then
             brew unlink openssl
@@ -343,7 +345,7 @@ jobs:
         if: ${{ contains(matrix.build.name, '+examples') }}
         run: |
           if [ -n '${{ matrix.build.generate }}' ]; then
-            cmake --build bld --target curl-examples --verbose
+            cmake --build bld --verbose --target curl-examples
           else
             make -C bld examples V=1
           fi

CMakeLists.txt

@@ -352,13 +352,12 @@ endif()
 if(WIN32)
   option(CURL_STATIC_CRT "Build libcurl with static CRT with MSVC (/MT)" OFF)
   if(CURL_STATIC_CRT AND MSVC)
-    if(BUILD_STATIC_CURL)
+    if(BUILD_STATIC_CURL OR NOT BUILD_CURL_EXE)
       set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
       string(APPEND CMAKE_C_FLAGS_RELEASE " -MT")
       string(APPEND CMAKE_C_FLAGS_DEBUG " -MTd")
     else()
-      message(WARNING "Static CRT requires curl executable built with static libcurl "
-        "(BUILD_STATIC_LIBS=ON and BUILD_STATIC_CURL=ON).")
+      message(WARNING "Static CRT requires static or no curl executable.")
     endif()
   endif()
 endif()
@@ -1954,22 +1953,6 @@ endif()
 
 # Some other minor tests
 
-if(CMAKE_COMPILER_IS_GNUCC AND APPLE)
-  include(CheckCCompilerFlag)
-  check_c_compiler_flag("-Wno-long-double" HAVE_C_FLAG_Wno_long_double)
-  if(HAVE_C_FLAG_Wno_long_double)
-    # The Mac version of GCC warns about use of long double. Disable it.
-    get_source_file_property(_mprintf_compile_flags "mprintf.c" COMPILE_FLAGS)
-    if(_mprintf_compile_flags)
-      string(APPEND _mprintf_compile_flags " -Wno-long-double")
-    else()
-      set(_mprintf_compile_flags "-Wno-long-double")
-    endif()
-    set_source_files_properties("mprintf.c" PROPERTIES
-      COMPILE_FLAGS ${_mprintf_compile_flags})
-  endif()
-endif()
-
 if(_cmake_try_compile_target_type_save)
   set(CMAKE_TRY_COMPILE_TARGET_TYPE ${_cmake_try_compile_target_type_save})
   unset(_cmake_try_compile_target_type_save)

docs/INSTALL-CMAKE.md

@@ -238,7 +238,7 @@ target_link_libraries(my_target PRIVATE CURL::libcurl)
 - `CURL_LIBCURL_VERSIONED_SYMBOLS`:         Enable libcurl versioned symbols. Default: `OFF`
 - `CURL_LIBCURL_VERSIONED_SYMBOLS_PREFIX`:  Override default versioned symbol prefix. Default: `<TLS-BACKEND>_` or `MULTISSL_`
 - `CURL_LTO`:                               Enable compiler Link Time Optimizations. Default: `OFF`
-- `CURL_STATIC_CRT`:                        Build libcurl with static CRT with MSVC (`/MT`) (requires static curl executable). Default: `OFF`
+- `CURL_STATIC_CRT`:                        Build libcurl with static CRT with MSVC (`/MT`) (requires static or no curl executable). Default: `OFF`
 - `CURL_TARGET_WINDOWS_VERSION`:            Minimum target Windows version as hex string.
 - `CURL_TEST_BUNDLES`:                      Bundle `libtest` and `unittest` tests into single binaries. Default: `OFF`
 - `CURL_WERROR`:                            Turn compiler warnings into errors. Default: `OFF`

docs/VULN-DISCLOSURE-POLICY.md

@@ -247,11 +247,11 @@ local system or network, the bar is raised. If a local user wrongfully has
 elevated rights on your system enough to attack curl, they can probably
 already do much worse harm and the problem is not really in curl.
 
-## Experiments
+## Debug & Experiments
 
 Vulnerabilities in features which are off by default (in the build) and
-documented as experimental, are not eligible for a reward and we do not
-consider them security problems.
+documented as experimental, or exist only in debug mode, are not eligible for a
+reward and we do not consider them security problems.
 
 ## URL inconsistencies
 

docs/examples/block_ip.c

@@ -298,14 +298,19 @@ int main(void)
 
   filter = (struct connection_filter *)calloc(1, sizeof(*filter));
   if(!filter)
-    exit(1);
+    return 1;
 
-  if(curl_global_init(CURL_GLOBAL_DEFAULT))
-    exit(1);
+  if(curl_global_init(CURL_GLOBAL_DEFAULT)) {
+    free(filter);
+    return 1;
+  }
 
   curl = curl_easy_init();
-  if(!curl)
-    exit(1);
+  if(!curl) {
+    curl_global_cleanup();
+    free(filter);
+    return 1;
+  }
 
   /* Set the target URL */
   curl_easy_setopt(curl, CURLOPT_URL, "http://localhost");

docs/examples/chkspeed.c

@@ -79,12 +79,12 @@ int main(int argc, char *argv[])
           fprintf(stderr,
                   "\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
                   appname);
-          exit(1);
+          return 1;
         case 'v':
         case 'V':
           fprintf(stderr, "\r%s %s - %s\n",
                   appname, CHKSPEED_VERSION, curl_version());
-          exit(1);
+          return 1;
         case 'a':
         case 'A':
           prtall = 1;

docs/examples/cookie_interface.c

@@ -34,8 +34,7 @@
 #include <curl/curl.h>
 #include <curl/mprintf.h>
 
-static void
-print_cookies(CURL *curl)
+static int print_cookies(CURL *curl)
 {
   CURLcode res;
   struct curl_slist *cookies;
@@ -47,7 +46,7 @@ print_cookies(CURL *curl)
   if(res != CURLE_OK) {
     fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n",
             curl_easy_strerror(res));
-    exit(1);
+    return 1;
   }
   nc = cookies;
   i = 1;
@@ -60,6 +59,8 @@ print_cookies(CURL *curl)
     printf("(none)\n");
   }
   curl_slist_free_all(cookies);
+
+  return 0;
 }
 
 int

docs/examples/ephiperfifo.c

@@ -418,22 +418,22 @@ static int init_fifo(GlobalInfo *g)
   struct epoll_event epev;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
-  if(lstat (fifo, &st) == 0) {
+  if(lstat(fifo, &st) == 0) {
     if((st.st_mode & S_IFMT) == S_IFREG) {
       errno = EEXIST;
       perror("lstat");
-      exit(1);
+      return 1;
     }
   }
   unlink(fifo);
-  if(mkfifo (fifo, 0600) == -1) {
+  if(mkfifo(fifo, 0600) == -1) {
     perror("mkfifo");
-    exit(1);
+    return 1;
   }
   sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
   if(sockfd == -1) {
     perror("open");
-    exit(1);
+    return 1;
   }
 
   g->fifofd = sockfd;
@@ -449,9 +449,9 @@ static int init_fifo(GlobalInfo *g)
 
 static void clean_fifo(GlobalInfo *g)
 {
-    epoll_ctl(g->epfd, EPOLL_CTL_DEL, g->fifofd, NULL);
-    fclose(g->input);
-    unlink(fifo);
+  epoll_ctl(g->epfd, EPOLL_CTL_DEL, g->fifofd, NULL);
+  fclose(g->input);
+  unlink(fifo);
 }
 
 
@@ -478,13 +478,13 @@ int main(int argc, char **argv)
   g.epfd = epoll_create1(EPOLL_CLOEXEC);
   if(g.epfd == -1) {
     perror("epoll_create1 failed");
-    exit(1);
+    return 1;
   }
 
   g.tfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK | TFD_CLOEXEC);
   if(g.tfd == -1) {
     perror("timerfd_create failed");
-    exit(1);
+    return 1;
   }
 
   memset(&its, 0, sizeof(struct itimerspec));
@@ -496,7 +496,8 @@ int main(int argc, char **argv)
   ev.data.fd = g.tfd;
   epoll_ctl(g.epfd, EPOLL_CTL_ADD, g.tfd, &ev);
 
-  init_fifo(&g);
+  if(init_fifo(&g))
+    return 1;
   g.multi = curl_multi_init();
 
   /* setup the generic multi interface options we want */
@@ -521,7 +522,7 @@ int main(int argc, char **argv)
       }
       else {
         perror("epoll_wait");
-        exit(1);
+        return 1;
       }
     }
 

docs/examples/evhiperfifo.c

@@ -402,22 +402,22 @@ static int init_fifo(GlobalInfo *g)
   curl_socket_t sockfd;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
-  if(lstat (fifo, &st) == 0) {
+  if(lstat(fifo, &st) == 0) {
     if((st.st_mode & S_IFMT) == S_IFREG) {
       errno = EEXIST;
       perror("lstat");
-      exit(1);
+      return 1;
     }
   }
   unlink(fifo);
-  if(mkfifo (fifo, 0600) == -1) {
+  if(mkfifo(fifo, 0600) == -1) {
     perror("mkfifo");
-    exit(1);
+    return 1;
   }
   sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
   if(sockfd == -1) {
     perror("open");
-    exit(1);
+    return 1;
   }
   g->input = fdopen(sockfd, "r");
 
@@ -436,7 +436,8 @@ int main(int argc, char **argv)
   memset(&g, 0, sizeof(GlobalInfo));
   g.loop = ev_default_loop(0);
 
-  init_fifo(&g);
+  if(init_fifo(&g))
+    return 1;
   g.multi = curl_multi_init();
 
   ev_timer_init(&g.timer_event, timer_cb, 0., 0.);

docs/examples/ghiper.c

@@ -392,21 +392,21 @@ int init_fifo(void)
     if((st.st_mode & S_IFMT) == S_IFREG) {
       errno = EEXIST;
       perror("lstat");
-      exit(1);
+      return CURL_SOCKET_BAD;
     }
   }
 
   unlink(fifo);
-  if(mkfifo (fifo, 0600) == -1) {
+  if(mkfifo(fifo, 0600) == -1) {
     perror("mkfifo");
-    exit(1);
+    return CURL_SOCKET_BAD;
   }
 
   socket = open(fifo, O_RDWR | O_NONBLOCK, 0);
 
-  if(socket == -1) {
+  if(socket == CURL_SOCKET_BAD) {
     perror("open");
-    exit(1);
+    return socket;
   }
   MSG_OUT("Now, pipe some URL's into > %s\n", fifo);
 
@@ -421,6 +421,8 @@ int main(void)
   GIOChannel* ch;
 
   fd = init_fifo();
+  if(fd == CURL_SOCKET_BAD)
+    return 1;
   ch = g_io_channel_unix_new(fd);
   g_io_add_watch(ch, G_IO_IN, fifo_cb, g);
   gmain = g_main_loop_new(NULL, FALSE);

docs/examples/hiperfifo.c

@@ -399,22 +399,22 @@ static int init_fifo(GlobalInfo *g)
   curl_socket_t sockfd;
 
   fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo);
-  if(lstat (fifo, &st) == 0) {
+  if(lstat(fifo, &st) == 0) {
     if((st.st_mode & S_IFMT) == S_IFREG) {
       errno = EEXIST;
       perror("lstat");
-      exit(1);
+      return 1;
     }
   }
   unlink(fifo);
   if(mkfifo (fifo, 0600) == -1) {
     perror("mkfifo");
-    exit(1);
+    return 1;
   }
   sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0);
   if(sockfd == -1) {
     perror("open");
-    exit(1);
+    return 1;
   }
   g->input = fdopen(sockfd, "r");
 
@@ -440,7 +440,8 @@ int main(int argc, char **argv)
 
   memset(&g, 0, sizeof(GlobalInfo));
   g.evbase = event_base_new();
-  init_fifo(&g);
+  if(init_fifo(&g))
+    return 1;
   g.multi = curl_multi_init();
   evtimer_assign(&g.timer_event, g.evbase, timer_cb, &g);
 

docs/examples/htmltitle.cpp

@@ -94,7 +94,7 @@ static bool init(CURL *&conn, const char *url)
 
   if(conn == NULL) {
     fprintf(stderr, "Failed to create CURL connection\n");
-    exit(EXIT_FAILURE);
+    return false;
   }
 
   code = curl_easy_setopt(conn, CURLOPT_ERRORBUFFER, errorBuffer);
@@ -270,7 +270,7 @@ int main(int argc, char *argv[])
 
   if(argc != 2) {
     fprintf(stderr, "Usage: %s <url>\n", argv[0]);
-    exit(EXIT_FAILURE);
+    return EXIT_FAILURE;
   }
 
   curl_global_init(CURL_GLOBAL_DEFAULT);
@@ -279,7 +279,7 @@ int main(int argc, char *argv[])
 
   if(!init(conn, argv[1])) {
     fprintf(stderr, "Connection initialization failed\n");
-    exit(EXIT_FAILURE);
+    return EXIT_FAILURE;
   }
 
   // Retrieve content for the URL
@@ -289,7 +289,7 @@ int main(int argc, char *argv[])
 
   if(code != CURLE_OK) {
     fprintf(stderr, "Failed to get '%s' [%s]\n", argv[1], errorBuffer);
-    exit(EXIT_FAILURE);
+    return EXIT_FAILURE;
   }
 
   // Parse the (assumed) HTML code

docs/examples/http2-download.c

@@ -142,7 +142,7 @@ int my_trace(CURL *handle, curl_infotype type,
   return 0;
 }
 
-static void setup(struct transfer *t, int num)
+static int setup(struct transfer *t, int num)
 {
   char filename[128];
   CURL *hnd;
@@ -155,7 +155,7 @@ static void setup(struct transfer *t, int num)
   if(!t->out) {
     fprintf(stderr, "error: could not open file %s for writing: %s\n",
             filename, strerror(errno));
-    exit(1);
+    return 1;
   }
 
   /* write to this file */
@@ -179,6 +179,7 @@ static void setup(struct transfer *t, int num)
   /* wait for pipe connection to confirm */
   curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
 #endif
+  return 0;
 }
 
 /*
@@ -204,7 +205,8 @@ int main(int argc, char **argv)
   multi_handle = curl_multi_init();
 
   for(i = 0; i < num_transfers; i++) {
-    setup(&trans[i], i);
+    if(setup(&trans[i], i))
+      return 1;
 
     /* add the individual transfer */
     curl_multi_add_handle(multi_handle, trans[i].easy);

docs/examples/http2-upload.c

@@ -200,7 +200,7 @@ static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
   return retcode;
 }
 
-static void setup(struct input *i, int num, const char *upload)
+static int setup(struct input *i, int num, const char *upload)
 {
   FILE *out;
   char url[256];
@@ -209,14 +209,15 @@ static void setup(struct input *i, int num, const char *upload)
   curl_off_t uploadsize;
   CURL *hnd;
 
-  hnd = i->hnd = curl_easy_init();
+  hnd = i->hnd = NULL;
+
   i->num = num;
   curl_msnprintf(filename, 128, "dl-%d", num);
   out = fopen(filename, "wb");
   if(!out) {
     fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
             strerror(errno));
-    exit(1);
+    return 1;
   }
 
   curl_msnprintf(url, 256, "https://localhost:8443/upload-%d", num);
@@ -225,7 +226,8 @@ static void setup(struct input *i, int num, const char *upload)
   if(stat(upload, &file_info)) {
     fprintf(stderr, "error: could not stat file %s: %s\n", upload,
             strerror(errno));
-    exit(1);
+    fclose(out);
+    return 1;
   }
 
   uploadsize = file_info.st_size;
@@ -234,9 +236,12 @@ static void setup(struct input *i, int num, const char *upload)
   if(!i->in) {
     fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
             strerror(errno));
-    exit(1);
+    fclose(out);
+    return 1;
   }
 
+  hnd = i->hnd = curl_easy_init();
+
   /* write to this file */
   curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
 
@@ -269,6 +274,7 @@ static void setup(struct input *i, int num, const char *upload)
   /* wait for pipe connection to confirm */
   curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
 #endif
+  return 0;
 }
 
 /*
@@ -301,7 +307,8 @@ int main(int argc, char **argv)
   multi_handle = curl_multi_init();
 
   for(i = 0; i < num_transfers; i++) {
-    setup(&trans[i], i, filename);
+    if(setup(&trans[i], i, filename))
+      return 1;
 
     /* add the individual transfer */
     curl_multi_add_handle(multi_handle, trans[i].hnd);

lib/asyn-ares.c

@@ -592,7 +592,7 @@ static void query_completed_cb(void *arg,  /* (struct connectdata *) */
   res->num_pending--;
 
   if(CURL_ASYNC_SUCCESS == status) {
-    struct Curl_addrinfo *ai = Curl_he2ai(hostent, data->conn->localport);
+    struct Curl_addrinfo *ai = Curl_he2ai(hostent, data->conn->remote_port);
     if(ai) {
       compound_results(res, ai);
     }

lib/vtls/gtls.c

@@ -959,7 +959,7 @@ static CURLcode gtls_client_init(struct Curl_cfilter *cf,
         return CURLE_SSL_CONNECT_ERROR;
       }
     }
-    else if(ssl_config->key_passwd) {
+    else {
       const unsigned int supported_key_encryption_algorithms =
         GNUTLS_PKCS_USE_PKCS12_3DES | GNUTLS_PKCS_USE_PKCS12_ARCFOUR |
         GNUTLS_PKCS_USE_PKCS12_RC2_40 | GNUTLS_PKCS_USE_PBES2_3DES |
@@ -974,22 +974,12 @@ static CURLcode gtls_client_init(struct Curl_cfilter *cf,
            supported_key_encryption_algorithms);
       if(rc != GNUTLS_E_SUCCESS) {
         failf(data,
-              "error reading X.509 potentially-encrypted key file: %s",
+              "error reading X.509 %skey file: %s",
+              ssl_config->key_passwd ? "potentially-encrypted " : "",
               gnutls_strerror(rc));
         return CURLE_SSL_CONNECT_ERROR;
       }
     }
-    else {
-      if(gnutls_certificate_set_x509_key_file(
-           gtls->shared_creds->creds,
-           config->clientcert,
-           ssl_config->key ? ssl_config->key : config->clientcert,
-           gnutls_do_file_type(ssl_config->cert_type) ) !=
-         GNUTLS_E_SUCCESS) {
-        failf(data, "error reading X.509 key or certificate file");
-        return CURLE_SSL_CONNECT_ERROR;
-      }
-    }
   }
 
 #ifdef USE_GNUTLS_SRP

m4/curl-compilers.m4

@@ -482,7 +482,7 @@ AC_DEFUN([CURL_COMPILER_WORKS_IFELSE], [
         #endif
       ]],[[
         int i = 0;
-        exit(i);
+        return i;
       ]])
     ],[
       tmp_compiler_works="yes"

m4/curl-functions.m4

@@ -1270,11 +1270,12 @@ AC_DEFUN([CURL_CHECK_FUNC_GETADDRINFO], [
         struct addrinfo hints;
         struct addrinfo *ai = 0;
         int error;
+        int exitcode;
 
         #ifdef _WIN32
         WSADATA wsa;
         if(WSAStartup(MAKEWORD(2, 2), &wsa))
-          exit(2);
+          return 2;
         #endif
 
         memset(&hints, 0, sizeof(hints));
@@ -1283,9 +1284,15 @@ AC_DEFUN([CURL_CHECK_FUNC_GETADDRINFO], [
         hints.ai_socktype = SOCK_STREAM;
         error = getaddrinfo("127.0.0.1", 0, &hints, &ai);
         if(error || !ai)
-          exit(1); /* fail */
-        else
-          exit(0);
+          exitcode = 1; /* fail */
+        else {
+          freeaddrinfo(ai);
+          exitcode = 0;
+        }
+        #ifdef _WIN32
+        WSACleanup();
+        #endif
+        return exitcode;
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -1883,9 +1890,11 @@ AC_DEFUN([CURL_CHECK_FUNC_GETIFADDRS], [
 
         error = getifaddrs(&ifa);
         if(error || !ifa)
-          exit(1); /* fail */
-        else
-          exit(0);
+          return 1; /* fail */
+        else {
+          freeifaddrs(ifa);
+          return 0;
+        }
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -2003,9 +2012,9 @@ AC_DEFUN([CURL_CHECK_FUNC_GMTIME_R], [
         gmt = gmtime_r(&local, &result);
         (void)result;
         if(gmt)
-          exit(0);
+          return 0;
         else
-          exit(1);
+          return 1;
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -2134,13 +2143,13 @@ AC_DEFUN([CURL_CHECK_FUNC_INET_NTOP], [
         /* - */
         ipv4ptr = inet_ntop(AF_INET, ipv4a, ipv4res, sizeof(ipv4res));
         if(!ipv4ptr)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(ipv4ptr != ipv4res)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(!ipv4ptr[0])
-          exit(1); /* fail */
+          return 1; /* fail */
         if(memcmp(ipv4res, "192.168.100.1", 13) != 0)
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
         ipv6res[0] = '\0';
         memset(ipv6a, 0, sizeof(ipv6a));
@@ -2158,15 +2167,15 @@ AC_DEFUN([CURL_CHECK_FUNC_INET_NTOP], [
         /* - */
         ipv6ptr = inet_ntop(AF_INET6, ipv6a, ipv6res, sizeof(ipv6res));
         if(!ipv6ptr)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(ipv6ptr != ipv6res)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(!ipv6ptr[0])
-          exit(1); /* fail */
+          return 1; /* fail */
         if(memcmp(ipv6res, "fe80::214:4fff:fe0b:76c8", 24) != 0)
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
-        exit(0);
+        return 0;
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -2286,18 +2295,18 @@ AC_DEFUN([CURL_CHECK_FUNC_INET_PTON], [
         /* - */
         memset(ipv4a, 1, sizeof(ipv4a));
         if(1 != inet_pton(AF_INET, ipv4src, ipv4a))
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
         if( (ipv4a[0] != 0xc0) ||
             (ipv4a[1] != 0xa8) ||
             (ipv4a[2] != 0x64) ||
             (ipv4a[3] != 0x01) ||
             (ipv4a[4] != 0x01) )
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
         memset(ipv6a, 1, sizeof(ipv6a));
         if(1 != inet_pton(AF_INET6, ipv6src, ipv6a))
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
         if( (ipv6a[0]  != 0xfe) ||
             (ipv6a[1]  != 0x80) ||
@@ -2310,7 +2319,7 @@ AC_DEFUN([CURL_CHECK_FUNC_INET_PTON], [
             (ipv6a[14] != 0x76) ||
             (ipv6a[15] != 0xc8) ||
             (ipv6a[16] != 0x01) )
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
         if( (ipv6a[2]  != 0x0) ||
             (ipv6a[3]  != 0x0) ||
@@ -2318,9 +2327,9 @@ AC_DEFUN([CURL_CHECK_FUNC_INET_PTON], [
             (ipv6a[5]  != 0x0) ||
             (ipv6a[6]  != 0x0) ||
             (ipv6a[7]  != 0x0) )
-          exit(1); /* fail */
+          return 1; /* fail */
         /* - */
-        exit(0);
+        return 0;
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -3809,11 +3818,11 @@ AC_DEFUN([CURL_CHECK_FUNC_STRERROR_R], [
         buffer[0] = '\0';
         string = strerror_r(EACCES, buffer, sizeof(buffer));
         if(!string)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(!string[0])
-          exit(1); /* fail */
+          return 1; /* fail */
         else
-          exit(0);
+          return 0;
       ]])
     ],[
       AC_MSG_RESULT([yes])
@@ -3872,11 +3881,11 @@ AC_DEFUN([CURL_CHECK_FUNC_STRERROR_R], [
         buffer[0] = '\0';
         error = strerror_r(EACCES, buffer, sizeof(buffer));
         if(error)
-          exit(1); /* fail */
+          return 1; /* fail */
         if(buffer[0] == '\0')
-          exit(1); /* fail */
+          return 1; /* fail */
         else
-          exit(0);
+          return 0;
       ]])
     ],[
       AC_MSG_RESULT([yes])

packages/vms/report_openssl_version.c

@@ -48,7 +48,7 @@ int main(int argc, char **argv)
 
   if(argc < 1) {
     puts("report_openssl_version filename");
-    exit(1);
+    return 1;
   }
 
   libptr = dlopen(argv[1], 0);
@@ -65,7 +65,7 @@ int main(int argc, char **argv)
 
   if(!ssl_version) {
     puts("Unable to lookup version of OpenSSL");
-    exit(1);
+    return 1;
   }
 
   version = ssl_version(SSLEAY_VERSION);
@@ -91,9 +91,9 @@ int main(int argc, char **argv)
 
     status = LIB$SET_SYMBOL(&symbol_dsc, &value_dsc, &table_type);
     if(!$VMS_STATUS_SUCCESS(status)) {
-      exit(status);
+      return status;
     }
   }
 
-  exit(0);
+  return 0;
 }

tests/data/test488

@@ -36,7 +36,7 @@ http
 Download two URLs provided on stdin
 </name>
 <command>
---url @-
+--output-dir %LOGDIR --url @-
 </command>
 <stdin>
 http://%HOSTIP:%HTTPPORT/a

tests/http/CMakeLists.txt

@@ -34,7 +34,7 @@ if(NOT VSFTPD)
 endif()
 mark_as_advanced(VSFTPD)
 
-find_program(HTTPD "apache2")  # /usr/sbin/apache2
+find_program(HTTPD NAMES "/usr/sbin/apache2" "httpd" "apache2")
 if(NOT HTTPD)
   set(HTTPD "")
 endif()

tests/http/clients/h2-pausing.c

@@ -140,12 +140,6 @@ static int debug_cb(CURL *handle, curl_infotype type,
   return 0;
 }
 
-#define ERR()                                                             \
-  do {                                                                    \
-    fprintf(stderr, "something unexpected went wrong - bailing out!\n");  \
-    exit(2);                                                              \
-  } while(0)
-
 static void usage(const char *msg)
 {
   if(msg)
@@ -196,6 +190,13 @@ static size_t cb(char *data, size_t size, size_t nmemb, void *clientp)
           handle->idx, (long)realsize);
   return realsize;
 }
+
+#define ERR()                                                             \
+  do {                                                                    \
+    fprintf(stderr, "something unexpected went wrong - bailing out!\n");  \
+    return 2;                                                             \
+  } while(0)
+
 #endif /* !_MSC_VER */
 
 int main(int argc, char *argv[])
@@ -254,19 +255,19 @@ int main(int argc, char *argv[])
   cu = curl_url();
   if(!cu) {
     fprintf(stderr, "out of memory\n");
-    exit(1);
+    return 1;
   }
   if(curl_url_set(cu, CURLUPART_URL, url, 0)) {
     fprintf(stderr, "not a URL: '%s'\n", url);
-    exit(1);
+    return 1;
   }
   if(curl_url_get(cu, CURLUPART_HOST, &host, 0)) {
     fprintf(stderr, "could not get host of '%s'\n", url);
-    exit(1);
+    return 1;
   }
   if(curl_url_get(cu, CURLUPART_PORT, &port, 0)) {
     fprintf(stderr, "could not get port of '%s'\n", url);
-    exit(1);
+    return 1;
   }
   memset(&resolve, 0, sizeof(resolve));
   curl_msnprintf(resolve_buf, sizeof(resolve_buf)-1, "%s:%s:127.0.0.1",

tests/http/clients/h2-upgrade-extreme.c

@@ -138,24 +138,25 @@ static size_t write_cb(char *ptr, size_t size, size_t nmemb, void *opaque)
 int main(int argc, char *argv[])
 {
   const char *url;
-  CURLM *multi;
+  CURLM *multi = NULL;
   CURL *easy;
   CURLMcode mc;
   int running_handles = 0, start_count, numfds;
   CURLMsg *msg;
   int msgs_in_queue;
   char range[128];
+  int exitcode = 1;
 
   if(argc != 2) {
     fprintf(stderr, "%s URL\n", argv[0]);
-    exit(2);
+    return 2;
   }
 
   url = argv[1];
   multi = curl_multi_init();
   if(!multi) {
     fprintf(stderr, "curl_multi_init failed\n");
-    exit(1);
+    goto cleanup;
   }
 
   start_count = 200;
@@ -164,7 +165,7 @@ int main(int argc, char *argv[])
       easy = curl_easy_init();
       if(!easy) {
         fprintf(stderr, "curl_easy_init failed\n");
-        exit(1);
+        goto cleanup;
       }
       curl_easy_setopt(easy, CURLOPT_VERBOSE, 1L);
       curl_easy_setopt(easy, CURLOPT_DEBUGFUNCTION, debug_cb);
@@ -186,8 +187,9 @@ int main(int argc, char *argv[])
       mc = curl_multi_add_handle(multi, easy);
       if(mc != CURLM_OK) {
         fprintf(stderr, "curl_multi_add_handle: %s\n",
-               curl_multi_strerror(mc));
-        exit(1);
+                curl_multi_strerror(mc));
+        curl_easy_cleanup(easy);
+        goto cleanup;
       }
       --start_count;
     }
@@ -195,16 +197,16 @@ int main(int argc, char *argv[])
     mc = curl_multi_perform(multi, &running_handles);
     if(mc != CURLM_OK) {
       fprintf(stderr, "curl_multi_perform: %s\n",
-             curl_multi_strerror(mc));
-      exit(1);
+              curl_multi_strerror(mc));
+      goto cleanup;
     }
 
     if(running_handles) {
       mc = curl_multi_poll(multi, NULL, 0, 1000000, &numfds);
       if(mc != CURLM_OK) {
         fprintf(stderr, "curl_multi_poll: %s\n",
-               curl_multi_strerror(mc));
-        exit(1);
+                curl_multi_strerror(mc));
+        goto cleanup;
       }
     }
 
@@ -224,12 +226,12 @@ int main(int argc, char *argv[])
         else if(msg->data.result) {
           fprintf(stderr, "transfer #%" CURL_FORMAT_CURL_OFF_T
                   ": failed with %d\n", xfer_id, msg->data.result);
-          exit(1);
+          goto cleanup;
         }
         else if(status != 206) {
           fprintf(stderr, "transfer #%" CURL_FORMAT_CURL_OFF_T
                   ": wrong http status %ld (expected 206)\n", xfer_id, status);
-          exit(1);
+          goto cleanup;
         }
         curl_multi_remove_handle(multi, msg->easy_handle);
         curl_easy_cleanup(msg->easy_handle);
@@ -244,5 +246,22 @@ int main(int argc, char *argv[])
   } while(running_handles > 0 || start_count);
 
   fprintf(stderr, "exiting\n");
-  exit(EXIT_SUCCESS);
+  exitcode = EXIT_SUCCESS;
+
+cleanup:
+
+  if(multi) {
+    CURL **list = curl_multi_get_handles(multi);
+    if(list) {
+      int i;
+      for(i = 0; list[i]; i++) {
+        curl_multi_remove_handle(multi, list[i]);
+        curl_easy_cleanup(list[i]);
+      }
+      curl_free(list);
+    }
+    curl_multi_cleanup(multi);
+  }
+
+  return exitcode;
 }

tests/http/clients/tls-session-reuse.c

@@ -136,9 +136,9 @@ static size_t write_cb(char *ptr, size_t size, size_t nmemb, void *opaque)
   return size * nmemb;
 }
 
-static void add_transfer(CURLM *multi, CURLSH *share,
-                         struct curl_slist *resolve,
-                         const char *url, int http_version)
+static int add_transfer(CURLM *multi, CURLSH *share,
+                        struct curl_slist *resolve,
+                        const char *url, int http_version)
 {
   CURL *easy;
   CURLMcode mc;
@@ -146,7 +146,7 @@ static void add_transfer(CURLM *multi, CURLSH *share,
   easy = curl_easy_init();
   if(!easy) {
     fprintf(stderr, "curl_easy_init failed\n");
-    exit(1);
+    return 1;
   }
   curl_easy_setopt(easy, CURLOPT_VERBOSE, 1L);
   curl_easy_setopt(easy, CURLOPT_DEBUGFUNCTION, debug_cb);
@@ -167,30 +167,33 @@ static void add_transfer(CURLM *multi, CURLSH *share,
   mc = curl_multi_add_handle(multi, easy);
   if(mc != CURLM_OK) {
     fprintf(stderr, "curl_multi_add_handle: %s\n",
-           curl_multi_strerror(mc));
-    exit(1);
+            curl_multi_strerror(mc));
+    curl_easy_cleanup(easy);
+    return 1;
   }
+  return 0;
 }
 
 int main(int argc, char *argv[])
 {
   const char *url;
-  CURLM *multi;
+  CURLM *multi = NULL;
   CURLMcode mc;
   int running_handles = 0, numfds;
   CURLMsg *msg;
-  CURLSH *share;
+  CURLSH *share = NULL;
   CURLU *cu;
-  struct curl_slist resolve;
+  struct curl_slist *resolve = NULL;
   char resolve_buf[1024];
   int msgs_in_queue;
   int add_more, waits, ongoing = 0;
-  char *host, *port;
+  char *host = NULL, *port = NULL;
   int http_version = CURL_HTTP_VERSION_1_1;
+  int exitcode = 1;
 
   if(argc != 3) {
     fprintf(stderr, "%s proto URL\n", argv[0]);
-    exit(2);
+    return 2;
   }
 
   if(!strcmp("h2", argv[1]))
@@ -202,41 +205,41 @@ int main(int argc, char *argv[])
   cu = curl_url();
   if(!cu) {
     fprintf(stderr, "out of memory\n");
-    exit(1);
+    return 1;
   }
   if(curl_url_set(cu, CURLUPART_URL, url, 0)) {
     fprintf(stderr, "not a URL: '%s'\n", url);
-    exit(1);
+    goto cleanup;
   }
   if(curl_url_get(cu, CURLUPART_HOST, &host, 0)) {
     fprintf(stderr, "could not get host of '%s'\n", url);
-    exit(1);
+    goto cleanup;
   }
   if(curl_url_get(cu, CURLUPART_PORT, &port, 0)) {
     fprintf(stderr, "could not get port of '%s'\n", url);
-    exit(1);
+    goto cleanup;
   }
 
-  memset(&resolve, 0, sizeof(resolve));
   curl_msnprintf(resolve_buf, sizeof(resolve_buf)-1, "%s:%s:127.0.0.1",
                  host, port);
-  curl_slist_append(&resolve, resolve_buf);
+  resolve = curl_slist_append(resolve, resolve_buf);
 
   multi = curl_multi_init();
   if(!multi) {
     fprintf(stderr, "curl_multi_init failed\n");
-    exit(1);
+    goto cleanup;
   }
 
   share = curl_share_init();
   if(!share) {
     fprintf(stderr, "curl_share_init failed\n");
-    exit(1);
+    goto cleanup;
   }
   curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_SSL_SESSION);
 
 
-  add_transfer(multi, share, &resolve, url, http_version);
+  if(add_transfer(multi, share, resolve, url, http_version))
+    goto cleanup;
   ++ongoing;
   add_more = 6;
   waits = 3;
@@ -244,16 +247,16 @@ int main(int argc, char *argv[])
     mc = curl_multi_perform(multi, &running_handles);
     if(mc != CURLM_OK) {
       fprintf(stderr, "curl_multi_perform: %s\n",
-             curl_multi_strerror(mc));
-      exit(1);
+              curl_multi_strerror(mc));
+      goto cleanup;
     }
 
     if(running_handles) {
       mc = curl_multi_poll(multi, NULL, 0, 1000000, &numfds);
       if(mc != CURLM_OK) {
         fprintf(stderr, "curl_multi_poll: %s\n",
-               curl_multi_strerror(mc));
-        exit(1);
+                curl_multi_strerror(mc));
+        goto cleanup;
       }
     }
 
@@ -262,7 +265,8 @@ int main(int argc, char *argv[])
     }
     else {
       while(add_more) {
-        add_transfer(multi, share, &resolve, url, http_version);
+        if(add_transfer(multi, share, resolve, url, http_version))
+          goto cleanup;
         ++ongoing;
         --add_more;
       }
@@ -284,12 +288,12 @@ int main(int argc, char *argv[])
         else if(msg->data.result) {
           fprintf(stderr, "transfer #%" CURL_FORMAT_CURL_OFF_T
                   ": failed with %d\n", xfer_id, msg->data.result);
-          exit(1);
+          goto cleanup;
         }
         else if(status != 200) {
           fprintf(stderr, "transfer #%" CURL_FORMAT_CURL_OFF_T
                   ": wrong http status %ld (expected 200)\n", xfer_id, status);
-          exit(1);
+          goto cleanup;
         }
         curl_multi_remove_handle(multi, msg->easy_handle);
         curl_easy_cleanup(msg->easy_handle);
@@ -305,5 +309,27 @@ int main(int argc, char *argv[])
   } while(ongoing || add_more);
 
   fprintf(stderr, "exiting\n");
-  exit(EXIT_SUCCESS);
+  exitcode = EXIT_SUCCESS;
+
+cleanup:
+
+  if(multi) {
+    CURL **list = curl_multi_get_handles(multi);
+    if(list) {
+      int i;
+      for(i = 0; list[i]; i++) {
+        curl_multi_remove_handle(multi, list[i]);
+        curl_easy_cleanup(list[i]);
+      }
+      curl_free(list);
+    }
+    curl_multi_cleanup(multi);
+  }
+  curl_share_cleanup(share);
+  curl_slist_free_all(resolve);
+  curl_free(host);
+  curl_free(port);
+  curl_url_cleanup(cu);
+
+  return exitcode;
 }

tests/http/clients/upload-pausing.c

@@ -180,12 +180,6 @@ static int progress_callback(void *clientp,
   return 0;
 }
 
-#define ERR()                                                             \
-  do {                                                                    \
-    fprintf(stderr, "something unexpected went wrong - bailing out!\n");  \
-    exit(2);                                                              \
-  } while(0)
-
 static void usage(const char *msg)
 {
   if(msg)
@@ -196,6 +190,13 @@ static void usage(const char *msg)
     "  -V http_version (http/1.1, h2, h3) http version to use\n"
   );
 }
+
+#define ERR()                                                             \
+  do {                                                                    \
+    fprintf(stderr, "something unexpected went wrong - bailing out!\n");  \
+    return 2;                                                             \
+  } while(0)
+
 #endif /* !_MSC_VER */
 
 int main(int argc, char *argv[])
@@ -245,19 +246,19 @@ int main(int argc, char *argv[])
   cu = curl_url();
   if(!cu) {
     fprintf(stderr, "out of memory\n");
-    exit(1);
+    return 1;
   }
   if(curl_url_set(cu, CURLUPART_URL, url, 0)) {
     fprintf(stderr, "not a URL: '%s'\n", url);
-    exit(1);
+    return 1;
   }
   if(curl_url_get(cu, CURLUPART_HOST, &host, 0)) {
     fprintf(stderr, "could not get host of '%s'\n", url);
-    exit(1);
+    return 1;
   }
   if(curl_url_get(cu, CURLUPART_PORT, &port, 0)) {
     fprintf(stderr, "could not get port of '%s'\n", url);
-    exit(1);
+    return 1;
   }
   memset(&resolve, 0, sizeof(resolve));
   curl_msnprintf(resolve_buf, sizeof(resolve_buf)-1, "%s:%s:127.0.0.1",
@@ -267,7 +268,7 @@ int main(int argc, char *argv[])
   curl = curl_easy_init();
   if(!curl) {
     fprintf(stderr, "out of memory\n");
-    exit(1);
+    return 1;
   }
   /* We want to use our own read function. */
   curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);

tests/libtest/lib533.c

@@ -21,7 +21,7 @@
  * SPDX-License-Identifier: curl
  *
  ***************************************************************************/
-/* used for test case 533, 534 and 535 */
+/* used for test case 533, 534, 535 and 546 */
 
 #include "test.h"
 

tests/server/mqttd.c

@@ -1018,8 +1018,8 @@ int main(int argc, char *argv[])
             logdir, SERVERLOGS_LOCKDIR, ipv_inuse);
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   CURL_SET_BINMODE(stdin);

tests/server/resolve.c

@@ -99,8 +99,8 @@ int main(int argc, char *argv[])
   }
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
 #if defined(CURLRES_IPV6)

tests/server/rtspd.c

@@ -1145,8 +1145,8 @@ int main(int argc, char *argv[])
             logdir, SERVERLOGS_LOCKDIR, ipv_inuse);
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   install_signal_handlers(false);

tests/server/sockfilt.c

@@ -1507,8 +1507,8 @@ int main(int argc, char *argv[])
   }
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   CURL_SET_BINMODE(stdin);

tests/server/socksd.c

@@ -1086,8 +1086,8 @@ int main(int argc, char *argv[])
   }
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   CURL_SET_BINMODE(stdin);

tests/server/sws.c

@@ -1611,7 +1611,7 @@ static void http_connect(curl_socket_t *infdp,
           if(!req2) {
             req2 = malloc(sizeof(*req2));
             if(!req2)
-              exit(1);
+              goto http_connect_cleanup;  /* fail */
           }
           memset(req2, 0, sizeof(*req2));
           logmsg("====> Client connect DATA");
@@ -2207,8 +2207,8 @@ int main(int argc, char *argv[])
             is_proxy ? "-proxy" : "", socket_type);
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   install_signal_handlers(false);

tests/server/tftpd.c

@@ -644,8 +644,8 @@ int main(int argc, char **argv)
             logdir, SERVERLOGS_LOCKDIR, ipv_inuse);
 
 #ifdef _WIN32
-  win32_init();
-  atexit(win32_cleanup);
+  if(win32_init())
+    return 2;
 #endif
 
   install_signal_handlers(true);

tests/server/util.c

@@ -153,7 +153,17 @@ void win32_perror(const char *msg)
   fprintf(stderr, "%s\n", buf);
 }
 
-void win32_init(void)
+static void win32_cleanup(void)
+{
+#ifdef USE_WINSOCK
+  WSACleanup();
+#endif  /* USE_WINSOCK */
+
+  /* flush buffers of all streams regardless of their mode */
+  _flushall();
+}
+
+int win32_init(void)
 {
 #ifdef USE_WINSOCK
   WORD wVersionRequested;
@@ -166,7 +176,7 @@ void win32_init(void)
   if(err) {
     perror("Winsock init failed");
     logmsg("Error initialising Winsock -- aborting");
-    exit(1);
+    return 1;
   }
 
   if(LOBYTE(wsaData.wVersion) != LOBYTE(wVersionRequested) ||
@@ -174,19 +184,11 @@ void win32_init(void)
     WSACleanup();
     perror("Winsock init failed");
     logmsg("No suitable winsock.dll found -- aborting");
-    exit(1);
+    return 1;
   }
 #endif  /* USE_WINSOCK */
-}
-
-void win32_cleanup(void)
-{
-#ifdef USE_WINSOCK
-  WSACleanup();
-#endif  /* USE_WINSOCK */
-
-  /* flush buffers of all streams regardless of their mode */
-  _flushall();
+  atexit(win32_cleanup);
+  return 0;
 }
 
 /* socket-safe strerror (works on Winsock errors, too) */

tests/server/util.h

@@ -51,8 +51,7 @@ extern const char *cmdfile;
 #define perror(m) win32_perror(m)
 void win32_perror(const char *msg);
 
-void win32_init(void);
-void win32_cleanup(void);
+int win32_init(void);
 const char *sstrerror(int err);
 #else   /* _WIN32 */
 

winbuild/Makefile.vc

@@ -58,9 +58,11 @@ CFGSET=true
 !ENDIF
 
 !INCLUDE "../lib/Makefile.inc"
+CSOURCES=$(CSOURCES:  = )
 LIBCURL_OBJS=$(CSOURCES:.c=.obj)
 
 !INCLUDE "../src/Makefile.inc"
+CURL_CFILES=$(CURL_CFILES:  = )
 CURL_OBJS=$(CURL_CFILES:.c=.obj)