FeelUOwn.c

#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
#include <signal.h>
#include <string.h>

//#define LIB_PYTHON_PATH "/usr/local/Cellar/python/3.7.2/Frameworks/Python.framework/Versions/3.7/Python"

typedef void (*PY_SETPROGNAME)(char *);
typedef void (*PY_INIT)();
typedef int (*PYRUN_SIMPLESTR)(const char *);
typedef void (*PY_FINAL)();

void sigHandler(int signo)
{
    switch (signo)
    {
        case SIGINT: // CTRL + c or Break key
        case SIGTERM: // Shutdown/Restart
        case SIGHUP: // "Hang up" (legacy)
        case SIGKILL: // Kill
        case SIGTSTP: // Close terminal from x button
            exit(signo);
            break;
        default:
            break;
    }
}

int main(int argc, char *argv[])
{
    void *handle;
    char *error;
    char buffer[256];
    FILE *fp;
    PY_SETPROGNAME Py_SetProgramName = NULL;
    PY_INIT Py_Initialize = NULL;
    PYRUN_SIMPLESTR PyRun_SimpleString = NULL;
    PY_FINAL Py_Finalize = NULL;
    

    // Set up error handler
    signal(SIGHUP, sigHandler);
    signal(SIGTERM, sigHandler);
    signal(SIGINT, sigHandler);
    signal(SIGKILL, sigHandler);
    signal(SIGTSTP, sigHandler);
    
    fp = popen("/bin/bash -c 'otool -L /usr/local/bin/python3|grep -oE \"\\s\\S.*/Python.framework/\\S+/Python\"'", "r");
    if (fp == NULL) {
      printf("Failed to run command\n" );
      exit(1);
    }
    
    /* Read the output a line at a time - output it. */
    fgetc(fp);
    if (fgets(buffer, sizeof(buffer)-1, fp) != NULL) {
        printf("Python framework path: %s", buffer);
    }
    else
        exit(1);
    //printf("length:%d\n", strlen(buffer));
    char libpath[strlen(buffer)-1];
    memcpy(libpath, &buffer, sizeof(libpath));
    //handle = dlopen(LIB_PYTHON_PATH, RTLD_LAZY);
    handle = dlopen(libpath, RTLD_LAZY);
    
    if (!handle) {
        fprintf(stderr, "%s\n", dlerror());
        exit(EXIT_FAILURE);
    }
    
    dlerror();
    
    *(void **) (&Py_SetProgramName) = (PY_SETPROGNAME)dlsym(handle, "Py_SetProgramName");
    if ((error = dlerror()) != NULL)  {
    fprintf(stderr, "%s\n", error);
    exit(EXIT_FAILURE);
    }
    Py_Initialize = (PY_INIT)dlsym(handle, "Py_Initialize");
    PyRun_SimpleString = (PYRUN_SIMPLESTR)dlsym(handle, "PyRun_SimpleString");
    Py_Finalize = (PY_FINAL)dlsym(handle, "Py_Finalize");
    

    Py_SetProgramName(argv[0]);  // optional but recommended
    Py_Initialize();
    PyRun_SimpleString("import re\n"
                       "import sys\n"
                       "from feeluown.__main__ import main\n");
    for (int i=0; i<argc; i++) {
        sprintf(buffer, "sys.argv.append('%s')\n", argv[i]);
        PyRun_SimpleString(buffer);
    }
    //PyRun_SimpleString("sys.argv.append('FeelUOwn')\n");
    
    PyRun_SimpleString("if __name__ == '__main__':\n"
                       "    sys.exit(main())\n");
    Py_Finalize();
    
    //free(buffer);
    pclose(fp);
    dlclose(handle);
    exit(EXIT_SUCCESS);
}