diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/getdents.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getdents.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/getdents.c b/sysdeps/unix/sysv/linux/getdents.c index 0f16683eed..474bf1989b 100644 --- a/sysdeps/unix/sysv/linux/getdents.c +++ b/sysdeps/unix/sysv/linux/getdents.c @@ -51,9 +51,12 @@ struct kernel_dirent char d_name[256]; }; -#ifdef GETDENTS64 -# define __getdents __getdents64 -# define dirent dirent64 +#ifndef __GETDENTS +# define __GETDENTS __getdents +# define DIRENT_TYPE struct dirent +#endif +#ifndef DIRENT_SET_DP_INO +# define DIRENT_SET_DP_INO(dp, value) (dp)->d_ino = (value) #endif /* The problem here is that we cannot simply read the next NBYTES @@ -66,22 +69,22 @@ struct kernel_dirent amount of data returned much more then the reduced buffer size. */ ssize_t internal_function -__getdents (int fd, char *buf, size_t nbytes) +__GETDENTS (int fd, char *buf, size_t nbytes) { off_t last_offset = -1; size_t red_nbytes; struct kernel_dirent *skdp, *kdp; - struct dirent *dp; + DIRENT_TYPE *dp; int retval; - const size_t size_diff = (offsetof (struct dirent, d_name) + const size_t size_diff = (offsetof (DIRENT_TYPE, d_name) - offsetof (struct kernel_dirent, d_name)); red_nbytes = MIN (nbytes - - ((nbytes / (offsetof (struct dirent, d_name) + 14)) + - ((nbytes / (offsetof (DIRENT_TYPE, d_name) + 14)) * size_diff), nbytes - size_diff); - dp = (struct dirent *) buf; + dp = (DIRENT_TYPE *) buf; skdp = kdp = __alloca (red_nbytes); retval = INLINE_SYSCALL (getdents, 3, fd, @@ -92,7 +95,7 @@ __getdents (int fd, char *buf, size_t nbytes) while ((char *) kdp < (char *) skdp + retval) { - const size_t alignment = __alignof__ (struct dirent); + const size_t alignment = __alignof__ (DIRENT_TYPE); /* Since kdp->d_reclen is already aligned for the kernel structure this may compute a value that is bigger than necessary. */ size_t new_reclen = ((kdp->d_reclen + size_diff + alignment - 1) @@ -116,14 +119,14 @@ __getdents (int fd, char *buf, size_t nbytes) } last_offset = kdp->d_off; - dp->d_ino = kdp->d_ino; + DIRENT_SET_DP_INO(dp, kdp->d_ino); dp->d_off = kdp->d_off; dp->d_reclen = new_reclen; dp->d_type = DT_UNKNOWN; memcpy (dp->d_name, kdp->d_name, kdp->d_reclen - offsetof (struct kernel_dirent, d_name)); - dp = (struct dirent *) ((char *) dp + new_reclen); + dp = (DIRENT_TYPE *) ((char *) dp + new_reclen); kdp = (struct kernel_dirent *) (((char *) kdp) + kdp->d_reclen); } |