#include <stdio.h>#include <errno.h> //needed for errnum#include <string.h>//needed for strerror#include <shimix_pio_button.h>#include <fcntl.h>#include <dirent.h>#include <sys/stat.h>#include <sys/types.h>#define BUTTON_DEVICE "/dev/shimix"static char* pics [100];//pics = (char *) malloc(100);static int count = 0;void get_file_info(char *name, char *path){  struct stat file_stats;  if(stat(name, &file_stats) == -1){    printf("\nFailed to access %s\n", name);    return;  }  printf("\nFile found!\n");  printf(  "        File name: %s\n", name);  printf(  "    Relative path: %s\n", path);  printf(  "  Protection mode: %d\n", file_stats.st_mode);  printf(  " User id of owner: %d\n", file_stats.st_uid);   printf(  "Group id of owner: %d\n", file_stats.st_gid);  printf(  "    Size in bytes: %d\n", file_stats.st_size);  if(count < 100){    if(file_stats.st_size <= 20000){      pics[count]= strdup(name);      printf("Added pic[%d] = %s\n",count, name);      count ++;    }    else{      printf("File is too big. Skipping file...\n");    }        }  if((file_stats.st_mode & S_IFMT) == S_IFDIR){    printf("The file is a directory.\n\n");  }}  void str_tolower(char *s) {     while(*s)     {         *s=tolower(*s);         s++;     } }  int StartSearch(char *name, char *path, int found_signal){    DIR *dfd;  struct dirent *dp;  struct stat file_stat;  if((dfd = opendir(path)) == NULL){    printf("Directory [%s], failed to open.", path);    return;  }  while (( dp = readdir(dfd)) != NULL){    if(strcmp(dp->d_name, ".") == 0 || strcmp(dp->d_name, "..") == 0){      continue; /*skipping itself and parent directories*/    }    char slash[2] = "/";    char *path_cpy = (char *) malloc(sizeof(char)*strlen(path)+strlen(dp->d_name)+2);    strcpy(path_cpy, path);    char *d_nameCopy = (char *) malloc(sizeof(char)*strlen(dp->d_name)+2);    strcpy(d_nameCopy, dp->d_name);    char *combined = strcat(path_cpy, slash);    char *full_name = strcat(combined, dp->d_name);    if(stat(full_name, &file_stat) == -1){      printf("\nFailed to access: %s\nSkipping...\n ", full_name);      continue; /*skip bad file or directory*/    }     if((file_stat.st_mode & S_IFMT) == S_IFDIR){      StartSearch(name, full_name, found_signal); /*recursive search*/    }    str_tolower(d_nameCopy);    if(strstr(d_nameCopy, name)){      get_file_info(full_name, path);      found_signal = 1;      //FILE FOUND!!!    }    free(path_cpy);    free(d_nameCopy);  }  closedir(dfd);  return found_signal;}int main(int argc, char *argv[]){  FILE * fButton;          //handle to button device  char buf[1]; //read buffer to store value of button pushed when read from fButton  int numBytesRead = 0;  char keyInput = 0;  unsigned int ioctlCmd;  printf("Launching button reader v1.3\n");  /* Establishing the root directory */  char* initial_path = "mnt";  int found_signal = 0;  char * jpg = ".jpeg";  int find = StartSearch(jpg, initial_path, found_signal);  jpg= ".jpg";  find = StartSearch(jpg, initial_path, found_signal);  char modprobe[28] =   "modprobe\tshimix_pio_button";  char makeDevice[29] = "mknod\t/dev/shimix\tc\t63\t0";  //printf("mknod is ran\n\n");  int x = system(modprobe);  x = system(makeDevice);    fButton = fopen(BUTTON_DEVICE, "r"); //open button device for read-only  if (fButton==NULL) {    printf("Error opening up %s\n", BUTTON_DEVICE);    return -1;  }  ioctl(fileno(fButton), SBLD_IOCT_LEDBUTTONNUM, 1); //enable displaying button pushed  ioctl(fileno(fButton), SBLD_IOCT_LEDCOUNTER, 1);   //enable button counters    printf("Entering main loop\n\n");    char command1[8] = "nano-X&";  char killall[20] = "killall\t-9\tnano-X";  // position of our cursor through the pics  int pos = 0;  int j;  char andPersand[4] = "\t&";  char resize[6] = "\t12&";  char nxview[9] = "nxview\t";  char *command2;  short first_time = 0;  while (keyInput!='q' && keyInput!='Q') {    printf("awaiting button: ");    if ((numBytesRead=read(fileno(fButton), buf, sizeof(char), 0))<= 0) { //if no bytes read or error      printf("Error reading %s\n", BUTTON_DEVICE);    }    else {      x = system(killall);      j = sleep(1);      if(first_time == 0){	printf("executing command nano-X....\n");	x = system(command1);	j = sleep(1);	command2 = (char *) malloc(sizeof(char)*strlen(nxview));	strcpy(command2, nxview);	printf("%d %u\n", buf[0], buf[0]);	strcat(command2, pics[pos]);	strcat(command2, andPersand);	printf("executing %s ....\n",command2); 	x = system(command2);	j = sleep(1);	free(command2);	first_time = 1;      }      else{	if (buf[0] == 2) {	  printf("executing command nano-X....\n");	  x = system(command1);	  j = sleep(1);	  command2 = (char *) malloc(sizeof(char)*strlen(nxview));	  strcpy(command2, nxview);	  printf("%d %u\n", buf[0], buf[0]);	  if (pos == count-1){	    pos = 0;	  }	  else{	    pos = pos + 1;	  }	  strcat(command2, pics[pos]);	  strcat(command2, andPersand);	  printf("executing %s ....\n",command2); 	  x = system(command2);	  j = sleep(1);	  free(command2);	}	else{	  if (buf[0] == 4) {	    printf("executing command nano-X....\n");	    x = system(command1);	    j = sleep(1);	    command2 = (char *) malloc(sizeof(char)*strlen(nxview));	    strcpy(command2, nxview);	    printf("%d %u\n", buf[0], buf[0]);	    if (pos <= 0){	      pos = count-1;	    }	    else{	      pos  = pos - 1;	    }	    strcat(command2, pics[pos]);	    strcat(command2, andPersand);	    printf("executing %s ....\n",command2); 	    x = system(command2);	    j = sleep(1);	    free(command2);	  }	  else{	    if (buf[0] == 8){	      printf("executing command nano-X....\n");	      x = system(command1);	      j = sleep(1);	      command2 = (char *) malloc(sizeof(char)*strlen(nxview));	      strcpy(command2, nxview);	      printf("%d %u\n", buf[0], buf[0]); 	      strcat(command2, pics[pos]);	      strcat(command2, resize);	      printf("executing %s ....\n",command2); 	      x = system(command2);	      j = sleep(1);	      free(command2);	    }	  }	}      }    }      //printf("Press q to quit or any other key to continue reading buttons\n");      //keyInput = getchar();  }  int i;  for(i = 0; i < count; i++){    free(pics[i]);	  }    printf("Button Reader terminating\n");}