filesystem/nitrofs/nitrodir/source/directory.c

#include <nds.h>
#include <filesystem.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>


//---------------------------------------------------------------------------------
void dirlist(const char* path) {
//---------------------------------------------------------------------------------

    DIR* pdir = opendir(path);
    char *dnbuf;

    if (pdir != NULL) {

        while(true) {
            struct dirent* pent = readdir(pdir);
            if(pent == NULL) break;
            
            if(strcmp(".", pent->d_name) != 0 && strcmp("..", pent->d_name) != 0) {
                dnbuf = (char *)malloc(strlen(pent->d_name)+strlen(path)+2);
                sprintf(dnbuf, "%s/%s", (strcmp("/",path) == 0)?"":path, pent->d_name);
                
                struct stat *statbuf = (struct stat*)malloc(sizeof(statbuf));
                stat(dnbuf, statbuf);

                if(S_ISDIR(statbuf->st_mode)) {
                    printf("%s <DIR>\n", dnbuf);
                    dirlist(dnbuf);
                } else {
                    printf("%s (%d)\n", dnbuf, (int)statbuf->st_size);
                }
                free(dnbuf);
                free(statbuf);
            }
        }
        
        closedir(pdir);
    } else {
        printf("opendir() failure.\n");
    }
}


//---------------------------------------------------------------------------------
int main(int argc, char **argv) {
//---------------------------------------------------------------------------------
    
    // Initialise the console, required for printf
    consoleDemoInit();
    
    if (nitroFSInit()) {

        dirlist("/");
        
        {
            // now, try reading a file to make sure things are working OK.
            FILE* inf = fopen("file1.txt","rb");
            if(inf)
            {
                int len;

                fseek(inf,0,SEEK_END);
                len = ftell(inf);
                fseek(inf,0,SEEK_SET);

                iprintf("\nthe following %d bytes message\nfrom file1.txt is\nbrought to you by fread:\n",len);
                {
                    char *entireFile = (char*)malloc(len+1);
                    entireFile[len] = 0;
                    if(fread(entireFile,1,len,inf) != len)
                        iprintf("savage error reading the bytes from the file!\n");
                    else
                        iprintf("%s\n-done-\n",entireFile);
                    free(entireFile);
                }

                fclose(inf);
            }
        }

        iprintf("here is the dirlist once more:\n");
        dirlist("/");

    } else {
        iprintf("nitroFSInit failure: terminating\n");
    }

    while(1) {
        swiWaitForVBlank();
    }

    return 0;
}