From 70fc4531597f6ea257639f3ed2129e6ec5108c36 Mon Sep 17 00:00:00 2001
From: prnmxfqg4 <zimujunxue@163.com>
Date: Mon, 4 Jul 2022 21:04:14 +0800
Subject: [PATCH] ADD file via upload

---
 myls.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 myls.c

diff --git a/myls.c b/myls.c
new file mode 100644
index 0000000..1946ddc
--- /dev/null
+++ b/myls.c
@@ -0,0 +1,47 @@
+#define __LIBRARY__
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdarg.h>
+#define O_RDONLY 00
+struct linux_dirent {
+    long           d_ino;
+    off_t          d_off;
+    unsigned short d_reclen;
+    char           d_name[1024];
+};
+char buf[512];
+_syscall3(int,getdents, int,fd,struct linux_dirent *,dirp,unsigned long,len)
+_syscall3(int ,open,const char *,filename,int, flag,int, mode)
+_syscall1(int,close,int,fildes)
+_syscall3(int,write,int ,fd,const char *, buf, off_t ,count)
+#define MAX_NUMBER_BYTES 1024
+#define MSG_LEN 256
+
+
+int printf(const char *fmt,...)
+{
+	write(2,fmt,strlen(fmt));
+}
+void test_getdents(void){
+    int fd, nread, bpos;
+    struct linux_dirent *dirp, *tmp;
+    dirp = (struct linux_dirent *)buf;
+    fd = open(".", O_RDONLY,0);
+	nread = getdents(fd, dirp, 512);
+	for(bpos = 0; bpos < nread;){
+		printf("gasdg");
+	    tmp = (struct linux_dirent *)(buf + bpos);
+	    printf( tmp->d_name);
+	    bpos += tmp->d_reclen;
+	}
+    close(fd);
+}
+
+int main(int argc, char *argv[]){
+    test_getdents();
+    return 0;
+}