int add_path_and_deps(const char *path, int readonly, int error, int lib)
{
assert(path != NULL);
if (lib == 0 && path[0] != '/') {
ERROR("%s is not an absolute path\n", path);
return error;
}
char *map = NULL;
int fd, ret = -1;
if (path[0] == '/') {
if (avl_find(&mounts, path))
return 0;
fd = open(path, O_RDONLY|O_CLOEXEC);
if (fd == -1)
return error;
add_mount(path, readonly, error);
} else {
if (avl_find(&libraries, path))
return 0;
char *fullpath;
fd = lib_open(&fullpath, path);
if (fd == -1)
return error;
if (fullpath) {
alloc_library(fullpath, path);
free(fullpath);
}
}
struct stat s;
if (fstat(fd, &s) == -1) {
ERROR("fstat(%s) failed: %s\n", path, strerror(errno));
ret = error;
goto out;
}
if (!S_ISREG(s.st_mode)) {
ret = 0;
goto out;
}
/* too small to be an ELF or a script -> "normal" file */
if (s.st_size < 4) {
ret = 0;
goto out;
}
map = mmap(NULL, s.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) {
ERROR("failed to mmap %s\n", path);
ret = -1;
goto out;
}
if (map[0] == '#' && map[1] == '!') {
ret = add_script_interp(path, map, s.st_size);
goto out;
}
if (map[0] == ELFMAG0 && map[1] == ELFMAG1 && map[2] == ELFMAG2 && map[3] == ELFMAG3) {
ret = elf_load_deps(path, map);
goto out;
}
ret = 0;
out:
if (fd >= 0)
close(fd);
if (map)
munmap(map, s.st_size);
return ret;
}
//int* adduser(int booknum);
//int userexist ();
int main()
{
struct library *library = alloc_library();
if (!library){
printf("Failed to allocate library");
return -1;
}
char input[80];
char input2[80];
int exit = 0;
int ret;
int menu;
//i=0,booknum=0;
while (!exit){
printf("CHOOSE AN OPTION\n");
scanf("%d",&menu);
switch (menu)
{
case 1:
scanf("%s", input);
ret = add_user(library, input);
if (ret < 0){
printf("Failed to allocate memory\n");
exit = 1;
break;
}
if (ret == 1){
printf("ERROR\n");
break;
}
printf("User added\n");
break;
case 2:
scanf("%s", input);
ret = add_book(library, input);
if (ret < 0){
printf("Failed to allocate memory\n");
exit = 1;
break;
}
if (ret == 1){
printf("ERROR\n");
break;
}
printf("Book added\n");
break;
case 3:
scanf("%s", input);
ret = remove_book(library, input);
if (ret == 1){
printf("error\n");
break;
}
printf("removed\n");
break;
case 4:
scanf("%s", input);
scanf("%s", input2);
ret = take_book(library, input, input2);
switch (ret){
case -1:
printf("Failed to allocate memory\n");
exit = 1;
break;
case 1:
case 2:
printf("ERROR\n");
break;
case 3:
printf("IN USE\n");
break;
default:
printf("SUCESS\n");
break;
}
break;
case 5:
scanf("%s", input);
scanf("%s", input2);
ret = return_book(library, input, input2);
switch (ret){
case 1:
case 2:
printf("ERROR\n");
break;
case 3:
printf("NOT IN YOUR USE\n");
break;
default:
printf("SUCESS\n");
}
break;
case 6:
scanf("%s", input);
ret = print_user_info(library, input);
if (ret == 1){
printf("ERROR\n");
}
break;
case 7:
exit = 1;
printf("BYE\n");
break;
}
}
free_library(library);
return 0;
}
