diff options
| -rw-r--r-- | fs/fs.c | 22 | ||||
| -rw-r--r-- | include/unistd.h | 1 |
2 files changed, 23 insertions, 0 deletions
@@ -742,6 +742,28 @@ int creat(const char *pathname, mode_t mode) } EXPORT_SYMBOL(creat); +int ftruncate(int fd, loff_t length) +{ + struct fs_driver_d *fsdrv; + FILE *f; + int ret; + + if (check_fd(fd)) + return -errno; + + f = &files[fd]; + + fsdrv = f->fsdev->driver; + + ret = fsdrv->truncate(&f->fsdev->dev, f, length); + if (ret) + return ret; + + f->size = length; + + return 0; +} + int ioctl(int fd, int request, void *buf) { struct fs_driver_d *fsdrv; diff --git a/include/unistd.h b/include/unistd.h index 31f430a5b6..f392e6dd6c 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -20,5 +20,6 @@ int symlink(const char *pathname, const char *newpath); int readlink(const char *path, char *buf, size_t bufsiz); int chdir(const char *pathname); const char *getcwd(void); +int ftruncate(int fd, loff_t length); #endif /* __UNISTD_H */ |