list file and send over a socket C -

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this snippet of "list" function of ftp server variabels use. school project , has one requirement: it has work. no matter if code looks bad...this 5th program (and harder i've ever done) xd
here's problem:

    /* here variabels */     int sockd, newsockd, socket_len, rc, rc_list, fd, fpl, i;     int numporta = atoi(argv[1]);     struct sockaddr_in serv_addr, cli_addr;     off_t offset = 0, offset_list = 0;     struct stat stat_buf;     struct hostent *local_ip;     static char filename[1024], buffer[256], saved_user[256];     char *user_string = null, *username = null, *pass_string = null, *password = null, *other = null;     size_t fsize;   char **files;   file *fp_list;   size_t count;  /* , here snippet of list */ if(recv(newsockd, buffer, sizeof(buffer), 0) < 0){     perror("errore nella ricezione del nome utente");     onexit(newsockd, sockd, 0, 2); } other = strtok(buffer, "\n"); if(strcmp(other, "list") == 0){     printf("received list request\n"); } else onexit(newsockd, sockd, 0, 2);  count = file_list("./", &files); return 0; if((fp_list = fopen("listfiles.txt", "w")) == null){   perror("impossibile aprire il file per la scrittura list");   exit(exit_failure); } for(i=0; < count; i++){   if(strcmp(files[i], "dir ..") == 0 || strcmp(files[i], "dir .") == 0){     continue; /* if dir . or .. skip */   } else{     fprintf(fp_list, "%s\n", files[i]);   } } if((fpl = open("listfiles.txt", o_rdonly)) < 0){   perror("open file open");   exit(1); /*sendfile , fstat need int double file opening :( */ } if(fstat(fpl, &stat_buf) < 0){   perror("errore fstat");   onexit(newsockd, sockd, 0, 2); } fsize = stat_buf.st_size; if(send(newsockd, &fsize, sizeof(fsize), 0) < 0){   perror("errore durante l'invio grande file list");   onexit(newsockd, sockd, 0, 2); } rc_list = sendfile(newsockd, fpl, &offset_list, stat_buf.st_size); if(rc_list == -1){   perror("invio file list non riuscito");   close(newsockd);   close(sockd);   fclose(fp_list); } if(rc_list != fsize){   fprintf(stderr, "trasferimento incompleto: %d di %d bytes\n", rc_list, (int)stat_buf.st_size);   close(newsockd);   close(sockd);   fclose(fp_list); } fclose(fp_list); close(fpl); fsize = 0; /* fsize 0 because have reuse */ printf("file inviato\n"); memset(buffer, '0', sizeof(buffer)); /* clear buffer future use */

where function file_list is:

size_t file_list(char *path, char ***ls){     dir *dp;   struct stat filestat;   struct dirent *ep = null;   size_t len, count = 0;   int file = 0;   *ls = null;   dp = opendir (path);   if(dp == null){     fprintf(stderr, "non esiste la directory: %s\n", path);     exit(1);   }    ep = readdir(dp);   while(null != ep){     count++;     ep = readdir(dp);   }    rewinddir(dp);    *ls = calloc(count, sizeof(char *));   count = 0;   ep = readdir(dp);   while(null != ep){     if((file = open(ep->d_name, o_rdonly)) < 0){       perror("apertura file");       exit(1);     }     if(fstat(file, &filestat) != 0){       perror("filestat");       free(*ls);       exit(exit_failure);     }     if(s_isdir(filestat.st_mode)){       len = strlen(ep->d_name);       (*ls)[count] = malloc(len+5); /* lunghezza stringa + "dir \n" */       strcpy((*ls)[count], "dir "); /* copio dir */       strcat((*ls)[count++], ep->d_name);       free((*ls)[count]);       ep = readdir(dp);     } else{       (*ls)[count++] = strdup(ep->d_name);       ep = readdir(dp);     }   (void)closedir(dp);   return count;   } }

so program when client send "list" ther server?
server create file called listfiles.txt , write files , directories have been found "./"
next sends file client.
problem file listed files sent without nothing or not list (like program name, or 3 letters, etc).
not client problem because i've stopped server before sent files , result have described above :(


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