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fs: implement fstat 

fstat is useful to get information about an already opened file. Add
it to barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2014-10-08 14:02:23 +02:00
parent 4f7a18cdb5
commit a3993a38da
2 changed files with 17 additions and 0 deletions
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16
fs/fs.c
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@ -1472,6 +1472,22 @@ out:
}
EXPORT_SYMBOL(lstat);
int fstat(int fd, struct stat *s)
{
FILE *f;
struct fs_device_d *fsdev;
if (check_fd(fd))
return -errno;
f = &files[fd];
fsdev = f->fsdev;
return fsdev->driver->stat(&fsdev->dev, f->path, s);
}
EXPORT_SYMBOL(fstat);
int mkdir (const char *pathname, mode_t mode)
{
struct fs_driver_d *fsdrv;

1
include/fs.h
View File

@ -114,6 +114,7 @@ int close(int fd);
int flush(int fd);
int lstat(const char *filename, struct stat *s);
int stat(const char *filename, struct stat *s);
int fstat(int fd, struct stat *s);
ssize_t read(int fd, void *buf, size_t count);
ssize_t pread(int fd, void *buf, size_t count, loff_t offset);
int ioctl(int fd, int request, void *buf);