60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#include "UpdateDialogGtkFactory.h"
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#include "Log.h"
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#include "UpdateDialog.h"
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#include "StringUtils.h"
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#include <dlfcn.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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class UpdateDialogGtk;
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// GTK updater UI library embedded into
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// the updater binary
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extern unsigned char libupdatergtk_so[];
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extern unsigned int libupdatergtk_so_len;
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// pointers to helper functions in the GTK updater UI library
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UpdateDialogGtk* (*update_dialog_gtk_new)() = 0;
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bool extractFileFromBinary(const char* path, const void* buffer, size_t length)
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{
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int fd = open(path,O_CREAT | O_WRONLY | O_TRUNC,0755);
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size_t count = write(fd,buffer,length);
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if (fd < 0 || count < length)
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{
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if (fd >= 0)
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{
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close(fd);
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}
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return false;
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}
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close(fd);
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return true;
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}
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UpdateDialog* UpdateDialogGtkFactory::createDialog()
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{
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const char* libPath = "/tmp/libupdatergtk.so";
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if (!extractFileFromBinary(libPath,libupdatergtk_so,libupdatergtk_so_len))
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{
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LOG(Warn,"Failed to load the GTK UI library - " + std::string(strerror(errno)));
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return 0;
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}
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void* gtkLib = dlopen(libPath,RTLD_LAZY);
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if (!gtkLib)
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{
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LOG(Warn,"Failed to load the GTK UI - " + std::string(dlerror()));
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return 0;
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}
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update_dialog_gtk_new = (UpdateDialogGtk* (*)()) dlsym(gtkLib,"update_dialog_gtk_new");
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return reinterpret_cast<UpdateDialog*>(update_dialog_gtk_new());
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}
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