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#include <stdio.h>#include <stdlib.h>#include <string.h>int main(int argc, char *argv[], char *envp[]){    FILE * opt;    FILE * dest;    FILE * src;        char * buffer_opt;    int i = 0;        long lSize;    opt  = fopen(argv[3], "r");        fseek(opt, 0, SEEK_END);    lSize = ftell(opt);    rewind(opt);        buffer_opt = (char *)malloc(sizeof(char) * lSize);        fread(buffer_opt,1,lSize,opt);        fclose(opt);        int rc = 0;        while(rc != 4) {        if(buffer_opt[i] == '\n')            rc++;        i++;    }        i += 11;    lSize = i;        while(buffer_opt[i] != '\n')        i++;        int path_len = i - lSize;      strncpy(buffer_opt, buffer_opt, i);    buffer_opt[i] = '\0';    char * buftmp = (char *)malloc(sizeof(char) * i);    int buftmplen = i;        while(i != 0)    {        buftmp[buftmplen-i] = buffer_opt[i-1];        i--;    }    buftmp[buftmplen] = '\0';        char *revpath = (char *)malloc(sizeof(char) * path_len);        free(buffer_opt);        strncpy(revpath, buftmp, path_len+1);    revpath[path_len+1] = '\0';        free(buftmp);            char * path = (char *)malloc(sizeof(char) * (path_len+1));        while(i != (path_len+1))    {        path[i] = revpath[path_len-i];        i++;    }        path[i] = '\0';        free(revpath);        strcat(path, "\\etc\\odin.cfg");        dest = fopen(path, "w+");    /*    char * path_ = (char *)malloc(strlen(envp[31]));    i=0;    printf("%s\n", envp[31]);    while(i != path_len || envp[31][strlen(envp[31])-i] != ';')    {        path_[i] = envp[31][strlen(envp[31])-i];        i++;    }        path_[i] = '\0';    char * path__ = (char *)malloc(strlen(path_));        while(i != 0)    {        path__[strlen(path_)-i] = path_[i];        i--;    }    path__[i] = '\0';        printf("%s\n", path__);    */        char *filename = "odin.cfg";            src  = fopen( filename, "r");    printf("%d\n", src);            fseek(src, 0, SEEK_END);    lSize = ftell(src);    rewind(src);        char * mem = (char *)malloc(lSize * sizeof(char));        fread(mem, 1, lSize, src);    printf("%s\n", mem);    fwrite(mem, 1, lSize, dest);        fclose(dest);    fclose(src);    free(mem);    free(path);        return 0;}