STAT()错误'没有这样的文件或目录“时,文件名由READDIR()返回 [英] stat() error 'No such file or directory' when file name is returned by readdir()
问题描述
我不能够确定由stat抛出的错误。下面的程序读取目录中的所有文件和打印文件名:
DIR * DP;
结构的dirent * dirp;
结构统计某人;如果((DP =执行opendir(的argv [1]))== NULL)
{
PERROR(无法打开目录);
}
而((dirp = READDIR(DP))!= NULL)
{
如果(STAT(dirp-> d_name,&安培; SB)== -1){
PERROR(STAT);
}
的printf(文件名称:%s \\ n,dirp-> d_name);
}
示例输出:
/家庭/ eipe
统计错误:没有这样的文件或目录
文件名:copyofsample
文件名:a.out的
文件名: 。
统计错误:没有这样的文件或目录
文件名:udpclient.c
文件名: ..
统计错误:没有这样的文件或目录
文件名:client.c
统计错误:没有这样的文件或目录
文件名:ftpclient.c
下面是内容:
的ls -l /家庭/ eipe / C-rwxr-XR-X 1 eipe egroup 7751 2011-02-24 15:18 a.out的
-rw-R - R-- 1 eipe egroup 798 2011-02-24 13:50 client.c
-rw-R - R-- 1 eipe egroup 15 2011-02-24 15:34 copyofsample
-rw-R - R-- 1 eipe egroup 1795 2011-02-24 15:33 ftpclient.c
-rw-R - R-- 1 eipe egroup 929 2011-02-24 13:34 udpclient.c
dirp-> d_name
在目录文件的的名称EM >:例如,udpclient.c
。该文件的全称是这样/家/ eipe / C / udpclient.c
- 但是你当前的工作目录是 /家庭/ eipe
,所以 STAT()
试图访问/家/ eipe / udpclient.c
,它不存在
您可以更改你的工作目录的argv [1]
使用 CHDIR()
,也可以prePEND 的argv [1]
将每个文件名,你打电话之前 STAT()
。
I'm not able to identify the error thrown by stat. The below program reads all files in a directory and prints the file name:
DIR *dp;
struct dirent *dirp;
struct stat sb;
if((dp = opendir(argv[1]))==NULL)
{
perror("can't open dir");
}
while((dirp = readdir(dp))!=NULL)
{
if (stat(dirp->d_name, &sb) == -1) {
perror("stat");
}
printf("File name: %s \n",dirp->d_name);
}
Sample output:
/home/eipe
stat error: No such file or directory
File name: copyofsample
File name: a.out
File name: .
stat error: No such file or directory
File name: udpclient.c
File name: ..
stat error: No such file or directory
File name: client.c
stat error: No such file or directory
File name: ftpclient.c
Here are the contents:
ls -l /home/eipe/c
-rwxr-xr-x 1 eipe egroup 7751 2011-02-24 15:18 a.out
-rw-r--r-- 1 eipe egroup 798 2011-02-24 13:50 client.c
-rw-r--r-- 1 eipe egroup 15 2011-02-24 15:34 copyofsample
-rw-r--r-- 1 eipe egroup 1795 2011-02-24 15:33 ftpclient.c
-rw-r--r-- 1 eipe egroup 929 2011-02-24 13:34 udpclient.c
dirp->d_name
is the name of the file in the directory: for example, "udpclient.c"
. The full name of the file is thus "/home/eipe/c/udpclient.c"
- but your current working directory is /home/eipe
, so stat()
is trying to access "/home/eipe/udpclient.c"
, which doesn't exist.
You can either change your working directory to argv[1]
using chdir()
, or you can prepend argv[1]
to each filename before you call stat()
.
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