github.com/afumu/libc@v0.0.6/musl/src/dirent/opendir.c (about)

     1  #define _GNU_SOURCE
     2  #include <dirent.h>
     3  #include <fcntl.h>
     4  #include <stdlib.h>
     5  #include "__dirent.h"
     6  #include "syscall.h"
     7  
     8  DIR *opendir(const char *name)
     9  {
    10  	int fd;
    11  	DIR *dir;
    12  
    13  	if ((fd = open(name, O_RDONLY|O_DIRECTORY|O_CLOEXEC)) < 0)
    14  		return 0;
    15  	if (!(dir = calloc(1, sizeof *dir))) {
    16  		__syscall(SYS_close, fd);
    17  		return 0;
    18  	}
    19  	dir->fd = fd;
    20  	return dir;
    21  }