C:没有这样的文件或目录

Question

当我硬编码chemin在open(chemin, O_RDONLY)一个文件名,程序工作,但是当我离开,如果给open(chemin, O_RDONLY)我弄No such file or directory.

为什么不chemin使用type_fichier？

当我使用printf("%s", chemin)在type_fichier我得到'

int type_fichier(char * chemin) {
  int fp;
  if ((fp = open(chemin, O_RDONLY)) == -1) { perror(""); exit(0); }

  struct stat fileStat;
  if(fstat(fp, &fileStat) < 0)
    return 1;

  switch(fileStat.st_mode & S_IFMT) {
    case S_IFBLK:  printf("block device\n");            break;
    case S_IFCHR:  printf("character device\n");        break;
    case S_IFDIR:  printf("directory\n");               break;
    case S_IFIFO:  printf("FIFO/pipe\n");               break;
    case S_IFLNK:  printf("symlink\n");                 break;
    case S_IFREG:  printf("regular file\n");            break;
    case S_IFSOCK: printf("socket\n");                  break;
    default:       printf("unknown?\n");                break;
  }
}

int main(int argc, char *argv[]) {
  char fn = "file";
  type_fichier(&fn);
}

Answer 1

你的错误在这里,你只分配1个字符fn:

char fn = "file";
type_fichier(&fn);

你可能想要:

const char *fn = "file";
type_fichier(fn);