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44 lines
894 B
44 lines
894 B
/*
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* 成功测试时的输出：
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* "getdents success."
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*/
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#define __LIBRARY__
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <assert.h>
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#include <sys/types.h>
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#include "new.h"
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_syscall3(int,getdents,int,fd,struct linux_dirent *,dirp,unsigned long,len)
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char buf[512];
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void test_getdents(void){
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int fd, nread, bpos;
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struct linux_dirent *dirp, *tmp;
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dirp = (struct linux_dirent *)buf;
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fd = open(".", O_RDONLY);
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printf("open fd: %d\n", fd);
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nread = getdents(fd, dirp, 512);
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printf("getdents fd: %d\n", nread);
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assert(nread != -1);
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for(bpos = 0; bpos < nread;){
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tmp = (struct linux_dirent *)(buf + bpos);
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printf( "%s\t", tmp->d_name);
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bpos += tmp->d_reclen;
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printf("%d\n",bpos);
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}
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printf("\n");
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printf("getdents success.\n");
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close(fd);
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}
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int main(void){
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test_getdents();
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return 0;
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}
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