pass to a function the path of a directory,C language

Question

this is my code, theoretically once taken from the terminal the directory where search and the file extension should look for these files contained in it and print their last modification and absolute path ... the problem is in the path printing.... for example /home/ciccio/prova.txt .... instead of ...... / home / ciccio / dir / subdir / prova.txt This is because I only pass the file name to the "realpath" function contained in ricor1(), which starts from the working directory and resolves the past path..so I think I should pass the absolute path of the directory to solve the problem ... or suggest me how I should do it pls

#include<stdio.h>
#include<sys/stat.h>
#include<errno.h>
#include<stdlib.h> 
#include<dirent.h>    
#include<stdarg.h>
#include<limits.h>
#include<string.h>
#include<time.h>
char * percorso;

////////////
char * scrivi(const char * a, char * b)
{

char *targetdir = malloc(2048);
strcpy(targetdir,a);
strcat(targetdir,"/");
strcat(targetdir,b);

//printf("%s \n", targetdir); 
return targetdir;
} 
//////////////


void ricor1(const char estensione[],const char nomedirectory[]){

struct stat attr;
char dbuf[PATH_MAX+1];
DIR * fh ;//puntatore ad una struttura DIR


struct dirent *fdata;

struct stat buf;
if((fh=opendir(nomedirectory))==NULL){
perror("ERRORE 1");
exit(errno);
}


while((fdata = readdir (fh))!=NULL){

// se è una directory richiama ricorsivamente

if(strcmp(fdata->d_name,".")==0)
{
  continue;
}
if(strcmp(fdata->d_name,"..") ==0)
{
continue;
}
if(fdata->d_type==DT_DIR)
{
 { percorso=scrivi(nomedirectory,fdata->d_name);
   ricor1(estensione,percorso);
 }
}

//
//


if(strstr(fdata->d_name,estensione)){

realpath(fdata->d_name,dbuf);

printf("[%s]",dbuf);

stat(nomedirectory,&attr);

printf("%s\n",ctime(&attr.st_mtime));
}

}

}      


void ricor2(const char estensione[]){

struct stat attr;
char dbuf[PATH_MAX+1];
DIR * fh ;//puntatore ad una struttura DIR
struct dirent *fdata;
struct stat buf;

if((fh=opendir("./"))==NULL){
perror("ERRORE 1");
exit(errno);
}


while((fdata = readdir (fh))!=NULL){

if(strstr(fdata->d_name,estensione)){

realpath(fdata->d_name,dbuf);

printf("[%s]",dbuf);

stat("./",&attr);

printf("%s\n",ctime(&attr.st_mtime));
}

}

}




int main(int argc, char *argv[])
{



  if(argc==3){

            printf("Controllo esistenza directory.. \n");

             DIR* dir=opendir(argv[2]);

          if(dir){
                   ricor1(argv[1],argv[2]);
    } else if (ENOENT==errno){

        printf("La directory passata non esiste");
  }
   else{

   printf("altro errore"); }   }


else if(argc==2){


ricor2(argv[1]);

}
}

Answer 1

Like Cheatah said,you need to provide us with more details,like,we don't even know what this function of yours does,but generally speaking in C an C++,you need to use the regular slash "/" as opposed to the back slash when specifying file paths,you also need to decide whether you're using an absolute path (Example:"D:/images/img.png") or a relative one,if the directory you're accessing is inside the project folder itself (Example:"images/img.png") as opposed to ("D:/Projects/c_project/images/img.png") with "D:/Projects/c_project" being your project folder and "images" being the directory you're trying to access.

So in short,your code with looks something like this:

function f(string s){

int main(){

f("D:/images/img.png");//Absolute path
f("images/img.png");//Relative path

}

function f(string s){...}

I hope I understood your question correctly,if not then you need to provide more details.