Windows: fix reexec not working when spaces in exe path

src/utils/closefrom.cpp

@@ -73,12 +73,14 @@
 #include "closefrom.h"
 
 #include <stdio.h>
-#include <unistd.h>
+#include "safeunistd.h"
 #include <fcntl.h>
 #include <string.h>
+#ifndef _WIN32
 #include <sys/param.h>
 #include <sys/time.h>
 #include <sys/resource.h>
+#endif
 
 
 /* #define DEBUG_CLOSEFROM */

src/utils/pathut.cpp

@@ -1611,13 +1611,13 @@ int Pidfile::write_pid()
     }
     char pidstr[20];
     sprintf(pidstr, "%u", int(getpid()));
-    lseek(fd, 0, 0);
+    ::lseek(fd, 0, 0);
     if (::write(fd, pidstr, strlen(pidstr)) != (PATHUT_SSIZE_T)strlen(pidstr)) {
         m_reason = "write failed";
         return -1;
     }
 #ifdef _WIN32
-    close(fd);
+    ::close(fd);
 #endif
     return 0;
 }

src/windows/execmd_w.cpp

@@ -32,6 +32,7 @@
 #include <psapi.h>
 #include "smallut.h"
 #include "pathut.h"
+#include "closefrom.h"
 
 using namespace std;
 
@@ -1242,13 +1243,26 @@ void ReExec::reexec()
         return;
     }
 
-    // Fill up argv
+    // Fill up argv. Can you believe that we need to quote the args !!
-    int i = 0;
+    // Esp. argv[0] if it's c:\program files\...
     std::vector<std::unique_ptr<wchar_t[]>> ptrs;
-    for (const auto& arg: m_argv) {
+    std::unique_ptr<wchar_t[]> cmd = utf8towchar(m_argv[0]);
+    unsigned int i = 0;
+    for (; i < m_argv.size(); i++) {
+        LOGDEB2("argv[" << i << "] " << m_argv[i] << "\n");
+        std::string arg;
+        argQuote(m_argv[i], arg);
+        LOGDEB2("  Quoted: [" << arg << "]\n");
         ptrs.push_back(utf8towchar(arg));
-        argv[i++] = ptrs.back().get();
+        argv[i] = ptrs.back().get();
     }
     argv[i] = nullptr;
-    _wexecvp(argv[0], argv);
+
+    // Close all descriptors except 0,1,2
+    // Does not work under windows for some reason, the new process does not start
+    //libclf_closefrom(3);
+
+    auto ret = _wexecvp(cmd.get(), argv);
+    LOGERR("_WEXECVP ["<<argv[0]<< "] FAILED: returned: " << ret << " errno " << errno << "\n");
+    std::cerr<<"_WEXECVP ["<<argv[0]<< "] FAILED: returned: " << ret << " errno " << errno << "\n";
 }

src/windows/mkinstdir.sh

@@ -367,5 +367,6 @@ copyunrtf
 copymutagen
 copywpd
 copypff
-
 copypython
+
+echo "MKINSTDIR OK"

src/windows/qmkrecoll/librecoll.pro

@@ -88,6 +88,7 @@ SOURCES += \
 ../../utils/cancelcheck.cpp \
 ../../utils/chrono.cpp \
 ../../utils/circache.cpp \
+../../utils/closefrom.cpp \
 ../../utils/cmdtalk.cpp \
 ../../utils/conftree.cpp \
 ../../utils/copyfile.cpp \